/* roulang page: index */
:root {
            --bg: #0B1220;
            --bg-2: #0D1526;
            --bg-3: #111A2E;
            --panel: rgba(255, 255, 255, 0.045);
            --panel-solid: #141E33;
            --line: rgba(255, 255, 255, 0.08);
            --line-strong: rgba(255, 255, 255, 0.14);
            --text: #EAF0FA;
            --muted: rgba(225, 232, 244, 0.62);
            --brand: #C9F73A;
            --brand-hover: #D8FF62;
            --aqua: #3AD7C0;
            --warning: #F0A35E;
            --radius-sm: 4px;
            --radius-btn: 8px;
            --radius-card: 14px;
            --radius-modal: 18px;
            --shadow: 0 14px 40px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 22px 60px rgba(0, 0, 0, 0.36);
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            font-size: 17px;
            line-height: 1.85;
            background: var(--bg);
            color: var(--text);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
            border-radius: 10px;
        }

        a {
            color: var(--aqua);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--brand);
        }

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font);
            font-size: 16px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .container-narrow {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .section-content {
            padding: 0 32px;
        }

        h1,
        h2,
        h3 {
            line-height: 1.3;
            font-weight: 800;
            font-size: 44px;
            letter-spacing: 0.5px;
            color: var(--text);
        }

        h2 {
            font-size: clamp(28px, 3.4vw, 40px);
            margin-bottom: 16px;
            letter-spacing: 0.4px;
        }

        h3 {
            font-size: 24px;
            font-weight: 700;
        }

        p {
            margin-bottom: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: none;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 600;
            line-height: 1;
            padding: 14px 28px;
            cursor: pointer;
            text-decoration: none;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--brand);
            color: #0B1220;
            box-shadow: 0 0 0 4px rgba(199, 247, 58, 0.06), 0 10px 30px rgba(199, 247, 58, 0.22);
        }

        .btn-primary:hover {
            background: var(--brand-hover);
            color: #0B1220;
            box-shadow: 0 0 0 6px rgba(199, 247, 58, 0.1), 0 14px 38px rgba(199, 247, 58, 0.3);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            background: #B8E833;
            transform: translateY(1px);
            box-shadow: 0 0 0 4px rgba(199, 247, 58, 0.08), 0 8px 20px rgba(199, 247, 58, 0.18);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(201, 247, 58, 0.5);
            outline-offset: 3px;
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            color: var(--text);
            backdrop-filter: blur(6px);
        }

        .btn-outline:hover {
            border-color: var(--brand);
            color: var(--brand);
            background: rgba(201, 247, 58, 0.06);
        }

        .btn-outline:active {
            background: rgba(201, 247, 58, 0.12);
        }

        .btn-outline:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 2px;
        }

        .btn-small {
            padding: 10px 20px;
            font-size: 15px;
        }

        .btn-block {
            width: 100%;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            line-height: 1;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            background: rgba(58, 215, 192, 0.1);
            color: var(--aqua);
            border: 1px solid rgba(58, 215, 192, 0.22);
            font-weight: 600;
        }

        .tag-acid {
            background: rgba(201, 247, 58, 0.1);
            color: var(--brand);
            border-color: rgba(201, 247, 58, 0.25);
        }

        .tag-warning {
            background: rgba(240, 163, 94, 0.1);
            color: var(--warning);
            border-color: rgba(240, 163, 94, 0.2);
        }

        .text-muted {
            color: var(--muted);
        }

        .stat-number {
            font-size: 68px;
            font-weight: 800;
            line-height: 1;
            color: var(--text);
            font-variant-numeric: tabular-nums;
            letter-spacing: -2px;
        }

        .stat-number .suffix {
            font-size: 28px;
            color: var(--brand);
            margin-left: 2px;
            font-weight: 700;
        }

        .acid-line {
            width: 52px;
            height: 3px;
            background: var(--brand);
            border-radius: 2px;
            margin-top: 18px;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 18, 32, 0.72);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid transparent;
            transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(9, 15, 27, 0.92);
            border-bottom-color: var(--line);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.28);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
            gap: 20px;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: var(--text);
            font-weight: 800;
            font-size: 22px;
            line-height: 1;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .logo-icon svg {
            width: 100%;
            height: 100%;
            color: var(--brand);
        }

        .logo-text {
            font-size: 22px;
            color: var(--text);
            letter-spacing: 0.5px;
            font-weight: 800;
        }

        .logo-text .dot {
            color: var(--brand);
        }

        .logo sup {
            font-size: 11px;
            color: var(--brand);
            font-weight: 700;
            margin-left: 3px;
            letter-spacing: 0;
            top: -8px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .main-nav a {
            color: rgba(225, 232, 244, 0.76);
            font-size: 16px;
            font-weight: 500;
            text-decoration: none;
            padding: 10px 2px;
            position: relative;
            transition: color 0.2s ease;
            line-height: 1.2;
        }

        .main-nav a:hover {
            color: var(--text);
        }

        .main-nav a.active {
            color: var(--text);
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 2px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-burger {
            display: none;
            background: none;
            border: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--text);
            flex-shrink: 0;
        }

        .header-burger svg {
            width: 28px;
            height: 28px;
        }

        .desktop-mode {
            display: inline-flex;
            align-items: center;
        }

        .mobile-form-note {
            display: none;
        }

        /* 移动头部抽屉 */
        .mobile-drawer {
            display: none;
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: 160px 0 90px;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }

        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            filter: brightness(0.5) saturate(1.05);
        }

        .hero-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, var(--bg) 2%, rgba(11, 18, 32, 0.4) 45%, rgba(11, 18, 32, 0.75) 90%);
        }

        .hero-light {
            position: absolute;
            top: -180px;
            left: 10%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(41, 91, 164, 0.22) 0%, transparent 68%);
            pointer-events: none;
            z-index: 0;
        }

        .hero-grid {
            position: absolute;
            inset: 0;
            z-index: 0;
            opacity: 0.5;
            background-image:
                radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.025) 1px, transparent 0);
            background-size: 44px 44px;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .hero-tag {
            margin-bottom: 28px;
        }

        .hero h1 {
            font-size: clamp(42px, 6vw, 68px);
            line-height: 1.15;
            margin-bottom: 22px;
            letter-spacing: -0.5px;
            font-weight: 800;
        }

        .hero h1 .brand-highlight {
            color: var(--brand);
            position: relative;
            white-space: nowrap;
        }

        .hero-subhead {
            font-size: 18px;
            color: rgba(225, 232, 244, 0.8);
            line-height: 1.8;
            max-width: 620px;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero .btn {
            min-height: 50px;
        }

        .scroll-hint {
            margin-top: 42px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--muted);
            font-size: 14px;
            text-decoration: none;
            opacity: 0.8;
        }

        .scroll-hint:hover {
            color: var(--aqua);
        }

        .scroll-hint svg {
            width: 20px;
            height: 20px;
            animation: bounceDown 2s infinite ease;
        }

        @keyframes bounceDown {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(6px);
            }
        }

        /* ========== 板块通用 ========== */
        .section-block {
            padding: 96px 0;
            position: relative;
        }

        .section-block-alt {
            background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--aqua);
            margin-bottom: 14px;
        }

        /* 痛点带 */
        .pain-points {
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            background: rgba(9, 14, 25, 0.45);
        }

        .pain-points-inner {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 48px;
            padding: 36px 0;
            max-width: 1200px;
            margin: 0 auto;
        }

        .pain-point-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .pain-point-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(240, 163, 94, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--warning);
            flex-shrink: 0;
        }

        .pain-point-icon svg {
            width: 22px;
            height: 22px;
        }

        .pain-point-text {
            font-size: 14.5px;
            color: rgba(225, 232, 244, 0.68);
            line-height: 1.6;
            font-weight: 500;
        }

        /* ========== 方案区 ========== */
        .solution-block {
            padding: 110px 0 90px;
        }

        .solution-layout {
            display: grid;
            grid-template-columns: 1fr 1.7fr;
            gap: 70px;
            align-items: flex-start;
        }

        .solution-lefthead {
            position: sticky;
            top: 100px;
        }

        .solution-lefthead h2 {
            font-size: clamp(28px, 3.4vw, 42px);
            margin-bottom: 16px;
        }

        .solution-lefthead p {
            color: var(--muted);
            font-size: 17px;
            line-height: 1.85;
        }

        .solution-right {
            border-top: 1px solid var(--line);
        }

        .solution-row {
            display: grid;
            grid-template-columns: 56px 1fr auto;
            gap: 24px;
            align-items: flex-start;
            padding: 30px 0;
            border-bottom: 1px solid var(--line);
            transition: border-color 0.25s ease, background 0.25s ease;
        }

        .solution-row:hover {
            border-bottom-color: rgba(201, 247, 58, 0.25);
        }

        .solution-index {
            font-size: 26px;
            font-weight: 800;
            color: var(--brand);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            opacity: 0.9;
        }

        .solution-problem {
            font-size: 15px;
            color: var(--muted);
            margin-bottom: 4px;
            line-height: 1.6;
        }

        .solution-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .solution-more {
            align-self: center;
            text-decoration: none;
            color: var(--aqua);
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            white-space: nowrap;
            transition: color 0.2s ease;
            padding: 6px 0;
        }

        .solution-more svg {
            width: 16px;
            height: 16px;
            transition: transform 0.2s ease;
        }

        .solution-more:hover {
            color: var(--brand);
        }

        .solution-more:hover svg {
            transform: translateX(3px);
        }

        /* ========== 数据区 ========== */
        .stats-block {
            padding: 90px 0;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            background: linear-gradient(180deg, var(--bg) 0%, rgba(12, 19, 32, 0.4) 100%);
        }

        .stats-inner {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px 50px;
            text-align: left;
        }

        .stat-item {
            padding-right: 18px;
        }

        .stat-item .label {
            margin-top: 18px;
            color: rgba(225, 232, 244, 0.65);
            font-size: 16px;
            line-height: 1.66;
        }

        .stat-line {
            width: 36px;
            height: 3px;
            background: var(--brand);
            border-radius: 2px;
            margin-top: 16px;
            margin-bottom: 16px;
        }

        /* ========== 信息列表 ========== */
        .news-section {
            padding: 106px 0;
        }

        .news-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 30px;
            margin-bottom: 44px;
        }

        .news-head .link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--muted);
            font-size: 15px;
            text-decoration: none;
            white-space: nowrap;
        }

        .news-head .link-more:hover {
            color: var(--brand);
        }

        .news-grid {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-items-wrap {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
            margin-top: 16px;
        }

        .news-featured {
            display: grid;
            grid-template-columns: 0.9fr 1.3fr;
            gap: 0;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
            position: relative;
        }

        .news-featured:hover {
            border-color: rgba(201, 247, 58, 0.25);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .news-featured-image {
            position: relative;
            min-height: 280px;
            overflow: hidden;
        }

        .news-featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
            border-radius: 0;
            transition: transform 0.4s ease;
        }

        .news-featured:hover .news-featured-image img {
            transform: scale(1.03);
        }

        .news-featured-body {
            padding: 30px 36px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            justify-content: center;
            gap: 10px;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--muted);
            margin-top: 6px;
        }

        .news-meta time {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .news-meta .sep {
            opacity: 0.4;
        }

        .news-card-title {
            font-size: 26px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.4;
            display: block;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .news-card-title:hover {
            color: var(--brand);
        }

        .news-card-desc {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
            margin-top: 4px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--aqua);
            font-weight: 600;
            font-size: 15px;
            margin-top: 6px;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .card-link:hover {
            color: var(--brand);
        }

        .news-item {
            display: flex;
            gap: 22px;
            padding: 22px 26px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            align-items: center;
            transition: border-color 0.2s ease, background 0.2s ease;
        }

        .news-item:hover {
            border-color: rgba(58, 215, 192, 0.2);
            background: rgba(255, 255, 255, 0.045);
        }

        .news-item-thumb {
            width: 130px;
            height: 100px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
            display: block;
        }

        .news-item-body {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 3px;
        }

        .news-item-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            text-decoration: none;
            display: block;
            line-height: 1.4;
        }

        .news-item-title:hover {
            color: var(--brand);
        }

        .news-item-time {
            font-size: 13px;
            color: var(--muted);
        }

        .news-item .tag {
            font-size: 12px;
            padding: 4px 9px;
            flex-shrink: 0;
        }

        .news-item-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 6px;
        }

        .news-empty {
            border: 1px dashed rgba(255, 255, 255, 0.17);
            border-radius: var(--radius-card);
            padding: 46px 24px;
            text-align: center;
            color: var(--muted);
            background: rgba(255, 255, 255, 0.02);
        }

        .news-empty a {
            color: var(--brand);
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 80px 0 30px;
        }

        .faq-head {
            max-width: 740px;
            margin-bottom: 48px;
        }

        .faq-list {
            max-width: 900px;
        }

        .faq-item {
            border-bottom: 1px solid var(--line);
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 18px;
            padding: 26px 6px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            transition: background 0.2s ease;
            line-height: 1.6;
            border: none;
            background: none;
            text-align: left;
            width: 100%;
            font-family: var(--font);
        }

        .faq-question:hover {
            color: var(--brand);
        }

        .faq-question:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 0px;
            border-radius: 4px;
        }

        .faq-icon-plus {
            display: inline-flex;
            color: var(--brand);
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            align-items: center;
            justify-content: center;
            background: rgba(201, 247, 58, 0.07);
            border-radius: 50%;
            font-size: 18px;
        }

        .faq-answer {
            display: none;
            padding: 0 40px 29px 6px;
            color: rgba(225, 232, 244, 0.74);
            line-height: 1.9;
        }

        .faq-answer p {
            margin-bottom: 12px;
            font-size: 16px;
        }

        .faq-answer.open {
            display: block;
            animation: faqOpen 0.2s ease;
        }

        @keyframes faqOpen {
            from {
                opacity: 0;
                transform: translateY(-6px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .faq-question .faq-icon-plus {
            transition: transform 0.25s ease;
        }

        .faq-question.open .faq-icon-plus {
            transform: rotate(45deg);
        }

        /* ========== CTA ========== */
        .cta-block {
            padding: 84px 0 100px;
        }

        .cta-wrap {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--line);
            border-radius: 20px;
            padding: 58px 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 60px;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow);
        }

        .cta-wrap::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(to right, var(--brand), transparent);
        }

        .cta-left h3 {
            font-size: 28px;
            margin-bottom: 12px;
        }

        .cta-left .sub {
            color: var(--muted);
            font-size: 16px;
            max-width: 500px;
            line-height: 1.75;
        }

        .cta .btn {
            flex-shrink: 0;
            min-height: 54px;
            padding: 16px 42px;
        }

        .cta-privacy-note {
            font-size: 12.5px;
            color: rgba(225, 232, 244, 0.5);
            margin-top: 24px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .cta-privacy-note svg {
            width: 14px;
            height: 14px;
            opacity: 0.5;
            flex-shrink: 0;
        }

        /* ========== Footer ========== */
        .site-footer {
            border-top: 1px solid var(--line);
            padding: 66px 0 30px;
            background: rgba(7, 12, 22, 0.5);
            margin-top: 20px;
        }

        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 50px;
        }

        .footer-brand-col {
            max-width: 300px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 18px;
        }

        .footer-logo .logo-icon {
            width: 26px;
            height: 26px;
        }

        .footer-brand-text {
            font-weight: 800;
            font-size: 22px;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 10px;
        }

        .footer-about {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.75;
        }

        .footer-group {
            min-width: 130px;
        }

        .footer-group h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .footer-group ul li {
            margin-bottom: 10px;
        }

        .footer-group a {
            color: rgba(225, 232, 244, 0.46);
            text-decoration: none;
            font-size: 15px;
            transition: color 0.18s ease;
        }

        .footer-group a:hover {
            color: var(--brand);
        }

        .footer-bottom {
            max-width: 1200px;
            margin: 60px auto 0;
            padding: 26px 32px 0;
            border-top: 1px solid var(--line);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: rgba(225, 232, 244, 0.4);
        }

        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }

        .footer-bottom-links a {
            color: rgba(225, 232, 244, 0.4);
            font-size: 14px;
            text-decoration: none;
        }

        .footer-bottom-links a:hover {
            color: var(--brand);
        }

        /* ========== 表单弹层 ========== */
        .modal-overlay {
            display: flex;
            align-items: center;
            justify-content: center;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(5, 8, 15, 0.78);
            backdrop-filter: blur(8px);
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.24s ease, visibility 0.24s ease;
        }

        .modal-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .modal-box {
            background: rgba(17, 25, 40, 0.97);
            border: 1px solid var(--line-strong);
            border-radius: var(--radius-modal);
            padding: 34px 38px;
            width: 520px;
            max-width: calc(100vw - 40px);
            max-height: 92vh;
            overflow-y: auto;
            position: relative;
            transition: transform 0.24s ease, opacity 0.24s ease;
            transform: translateY(24px);
        }

        .modal-overlay.active .modal-box {
            transform: translateY(0);
        }

        .modal-close {
            position: absolute;
            top: 18px;
            right: 18px;
            width: 34px;
            height: 34px;
            border-radius: 8px;
            border: none;
            background: rgba(255, 255, 255, 0.05);
            color: rgba(225, 232, 244, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .modal-close:hover {
            background: rgba(255, 255, 255, 0.12);
            color: var(--text);
        }

        .modal-box h3 {
            font-size: 26px;
            margin-bottom: 6px;
        }

        .modal-box .modal-sub {
            font-size: 15px;
            color: var(--muted);
            margin-bottom: 28px;
        }

        .form-field {
            margin-bottom: 16px;
        }

        .form-field label {
            display: block;
            font-size: 14px;
            margin-bottom: 6px;
            color: rgba(225, 232, 244, 0.8);
        }

        .form-field input,
        .form-field select,
        .form-field textarea {
            width: 100%;
            border: 1.5px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-btn);
            background: rgba(8, 13, 24, 0.75);
            color: var(--text);
            padding: 13px 16px;
            font-size: 16px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            outline: none;
        }

        .form-field input:focus,
        .form-field select:focus,
        .form-field textarea:focus {
            border-color: var(--aqua);
            box-shadow: 0 0 0 3px rgba(58, 215, 192, 0.1);
            outline: none;
        }

        .form-field input::placeholder,
        .form-field textarea::placeholder {
            color: rgba(225, 232, 244, 0.22);
        }

        .form-field select {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none' stroke='rgba(255,255,255,0.4)' stroke-width='2'%3E%3Cpath d='M3 4.5L6 7.5L9 4.5'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 15px center;
            background-size: 14px;
            padding-right: 42px;
        }

        .form-field select:invalid {
            color: rgba(225, 232, 244, 0.28);
        }

        .form-submit {
            margin-top: 24px;
        }

        .modal-privacy {
            font-size: 12px;
            color: rgba(225, 232, 244, 0.5);
            display: flex;
            align-items: flex-start;
            gap: 6px;
            line-height: 1.6;
            margin-top: 16px;
        }

        .modal-success {
            display: none;
            text-align: center;
            padding: 18px 0;
            border-top: 1px solid var(--line);
        }

        .modal-success .success-mark {
            width: 44px;
            height: 44px;
            background: rgba(201, 247, 58, 0.12);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            color: var(--brand);
        }

        .modal-success .success-mark svg {
            width: 24px;
            height: 24px;
        }

        .form-wrap.success .form-fields {
            display: none;
        }

        .form-wrap.success .modal-success {
            display: block;
        }

        /* ========== 页面 hero 通用（分类角 banner） ========== */
        .page-banner {
            padding: 180px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .page-banner-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }

        .page-banner-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            filter: brightness(0.4) saturate(0.9);
        }

        .page-banner-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, var(--bg) 0%, rgba(10, 16, 30, 0.25) 60%, rgba(10, 16, 30, 0.2) 100%);
        }

        .page-banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .page-banner-content .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: var(--muted);
        }

        .breadcrumb a:hover {
            color: var(--brand);
        }

        .page-banner-content .page-banner-title {
            font-size: clamp(34px, 4vw, 50px);
            line-height: 1.2;
        }

        .page-banner-desc {
            color: rgba(225, 232, 244, 0.7);
            font-size: 17px;
            line-height: 1.85;
            max-width: 680px;
            text-align: center;
            margin: 16px auto 0;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .header-inner {
                padding: 0 20px;
            }

            .main-nav {
                gap: 16px;
            }

            .main-nav a {
                font-size: 15px;
            }

            .solution-layout {
                grid-template-columns: 1fr;
                gap: 42px;
            }

            .solution-lefthead {
                position: static;
            }

            .container,
            .section-content,
            .footer-inner {
                padding-left: 24px;
                padding-right: 24px;
            }

            .stats-inner {
                grid-template-columns: repeat(2, 1fr);
            }

            .news-grid {
                grid-template-columns: 1fr;
            }

            .news-featured {
                grid-template-columns: 1fr;
            }

            .news-featured-image {
                min-height: 220px;
            }

            .hero h1 {
                font-size: clamp(38px, 5vw, 52px);
            }
        }

        @media (max-width: 768px) {
            body {
                font-size: 16px;
            }

            .container,
            .section-content,
            .footer-inner {
                padding-left: 20px;
                padding-right: 20px;
            }

            .header-inner {
                height: 64px;
                padding: 0 16px;
            }

            .header-cta .btn-small {
                display: none;
            }

            .header-burger {
                display: flex;
            }

            .desktop-mode {
                display: none;
            }

            .mobile-drawer {
                display: flex;
                flex-direction: column;
                gap: 24px;
                background: rgba(11, 18, 32, 0.97);
                padding: 28px 24px;
                border-radius: 14px;
                border: 1px solid var(--line);
                position: fixed;
                top: 12px;
                right: 12px;
                z-index: 1500;
                width: calc(100vw - 46px);
                max-width: 330px;
                box-shadow: var(--shadow-hover);
                border: 1px solid rgba(255, 255, 255, 0.09);
                opacity: 0;
                visibility: hidden;
                transform: translateX(20px);
                transition: opacity 0.2s ease, transform 0.2s ease;
            }

            .mobile-drawer.open {
                opacity: 1;
                visibility: visible;
                transform: translateX(0);
            }

            .drawer-logo {
                display: flex;
                justify-content: space-between;
                align-items: center;
            }

            .drawer-logo .logo-text {
                font-size: 20px;
            }

            .drawer-logo .modal-close {
                position: static;
                width: 36px;
                height: 36px;
            }

            .mobile-nav-list {
                display: flex;
                flex-direction: column;
                gap: 4px;
            }

            .mobile-nav-list a {
                padding: 12px 6px;
                color: var(--text);
                font-weight: 600;
                font-size: 16.5px;
                border-bottom: 1px solid transparent;
                text-decoration: none;
                border-radius: 8px;
            }

            .mobile-nav-list a:hover {
                background: rgba(255, 255, 255, 0.04);
            }

            .mobile-drawer .btn {
                width: 100%;
            }

            .hero {
                padding: 130px 0 70px;
                min-height: 86vh;
            }

            .hero-content {
                max-width: 100%;
            }

            .hero h1 {
                font-size: clamp(33px, 7vw, 46px);
            }

            .hero .subhead {
                font-size: 16px;
            }

            .section-block,
            .solution-block,
            .news-section,
            .stats-block {
                padding: 66px 0;
            }

            .news-featured-body {
                padding: 24px 28px;
            }

            .news-item {
                flex-direction: column;
                align-items: flex-start;
            }

            .news-item-thumb {
                width: 100%;
                height: 190px;
            }

            .news-meta {
                flex-wrap: wrap;
            }

            .pain-points-inner {
                grid-template-columns: 1fr;
                gap: 20px;
                padding: 24px 0;
            }

            .stats-inner {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .cta-wrap {
                flex-direction: column;
                gap: 34px;
                text-align: center;
                padding: 44px 28px;
            }

            .cta-wrap::before {
                height: 3px;
            }

            .cta-privacy-note {
                justify-content: center;
            }

            .footer-inner {
                gap: 32px;
                justify-content: flex-start;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                margin-top: 38px;
            }

            .footer-bottom-links {
                flex-wrap: wrap;
            }

            .modal-box {
                padding: 28px 20px;
            }
        }

        @media (max-width: 520px) {
            .btn {
                font-size: 15px;
                padding: 13px 20px;
            }

            .btn-small {
                padding: 9px 14px;
            }

            .hero h1 .brand-highlight {
                white-space: normal;
            }

            .header-inner {
                gap: 8px;
            }

            .logo-text {
                font-size: 20px;
            }

            .cta-wrap {
                padding: 38px 22px;
                text-align: left;
            }

            .cta-privacy-note {
                justify-content: flex-start;
            }

            .section-block,
            .solution-block,
            .news-section,
            .stats-block {
                padding: 54px 0;
            }
        }

/* roulang page: article */
:root {
            --bg: #0B1220;
            --bg-deep: #080E18;
            --panel: rgba(255, 255, 255, 0.045);
            --panel-2: rgba(17, 25, 40, 0.62);
            --line: rgba(255, 255, 255, 0.08);
            --line-strong: rgba(201, 247, 58, 0.34);
            --text: #EAF0FA;
            --muted: rgba(225, 232, 244, 0.62);
            --acid: #C9F73A;
            --acid-bright: #DAFF5D;
            --aqua: #3AD7C0;
            --orange: rgba(240, 163, 94, 0.92);
            --radius-sm: 4px;
            --radius-btn: 8px;
            --radius-card: 14px;
            --radius-modal: 18px;
            --shadow-card: 0 14px 40px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 22px 60px rgba(0, 0, 0, 0.36);
            --shadow-acid: 0 0 0 4px rgba(199, 247, 58, 0.06), 0 10px 30px rgba(199, 247, 58, 0.22);
            --space-section: 108px;
            --container: 1200px;
            --content: 780px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            font-size: 17px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        button {
            border: 0;
            background: none;
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--aqua);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            width: min(1200px, 92%);
            margin-inline: auto;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 200;
            height: 76px;
            background: rgba(8, 14, 24, 0.72);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--line);
            transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(7, 12, 20, 0.92);
            border-bottom-color: rgba(201, 247, 58, 0.14);
            box-shadow: 0 12px 34px rgba(0, 0, 0, 0.22);
        }

        .header-inner {
            height: 100%;
            display: flex;
            align-items: center;
            gap: 24px;
            width: min(1200px, 92%);
            margin-inline: auto;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
            font-size: 20px;
            font-weight: 800;
            letter-spacing: -0.2px;
            flex-shrink: 0;
        }

        .logo-icon {
            display: grid;
            place-items: center;
            color: var(--acid);
        }

        .logo-icon svg {
            width: 26px;
            height: 26px;
        }

        .logo-text {
            white-space: nowrap;
        }

        .logo .dot {
            color: var(--acid);
            margin-left: 2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 15px;
            color: var(--muted);
            white-space: nowrap;
            position: relative;
            transition: color 0.2s ease, background 0.2s ease;
        }

        .main-nav a:hover {
            color: var(--text);
            background: rgba(255, 255, 255, 0.05);
        }

        .main-nav a.active {
            color: var(--acid);
            color: var(--text);
            background: rgba(201, 247, 58, 0.08);
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 1px;
            height: 2px;
            border-radius: 999px;
            background: var(--acid);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: 4px;
        }

        .desktop-mode .btn {
            white-space: nowrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            transition: background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
            min-height: 46px;
            padding: 0 28px;
            font-size: 15px;
            line-height: 1;
            border: 1px solid transparent;
            text-align: center;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--acid);
            color: #0B1220;
            border-color: var(--acid);
            box-shadow: var(--shadow-acid);
        }

        .btn-primary:hover {
            background: var(--acid-bright);
            border-color: var(--acid-bright);
            box-shadow: 0 0 0 6px rgba(201, 247, 58, 0.1), 0 14px 34px rgba(201, 247, 58, 0.3);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 0 4px rgba(201, 247, 58, 0.06), 0 8px 20px rgba(201, 247, 58, 0.18);
        }

        .btn-small {
            min-height: 40px;
            padding: 0 18px;
            font-size: 14px;
            border-radius: var(--radius-btn);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text);
            border: 1px solid rgba(255, 255, 255, 0.13);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(201, 247, 58, 0.35);
        }

        .btn-acid-ghost {
            background: transparent;
            color: var(--acid);
            border: 1px solid rgba(201, 247, 58, 0.5);
        }

        .btn-acid-ghost:hover {
            background: rgba(201, 247, 58, 0.08);
            border-color: var(--acid);
            box-shadow: 0 0 22px rgba(201, 247, 58, 0.12);
        }

        .header-burger {
            width: 42px;
            height: 42px;
            display: none;
            align-items: center;
            justify-content: center;
            color: var(--text);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-btn);
            background: rgba(255, 255, 255, 0.04);
        }

        .header-burger:hover {
            border-color: rgba(201, 247, 58, 0.36);
            color: var(--acid);
        }

        .header-burger svg {
            width: 22px;
            height: 22px;
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            z-index: 300;
            background: rgba(3, 6, 12, 0.66);
            opacity: 0;
            visibility: hidden;
            backdrop-filter: blur(2px);
            transition: opacity 0.25s ease, visibility 0.25s ease;
        }

        .drawer-overlay.is-open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: 0;
            z-index: 310;
            width: min(340px, 88%);
            height: 100dvh;
            background: #0C1524;
            border-left: 1px solid rgba(255, 255, 255, 0.09);
            box-shadow: -20px 0 60px rgba(0, 0, 0, 0.45);
            transform: translateX(102%);
            transition: transform 0.24s ease;
            display: flex;
            flex-direction: column;
            padding: 22px;
            overflow-y: auto;
        }

        .mobile-drawer.is-open {
            transform: translateX(0);
        }

        .drawer-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-bottom: 18px;
            border-bottom: 1px solid var(--line);
            margin-bottom: 20px;
        }

        .drawer-logo {
            font-weight: 800;
            font-size: 20px;
            color: var(--text);
        }

        .drawer-logo span {
            color: var(--acid);
        }

        .drawer-close {
            width: 38px;
            height: 38px;
            display: grid;
            place-items: center;
            border-radius: 50%;
            border: 1px solid var(--line);
            color: var(--text);
            background: rgba(255, 255, 255, 0.04);
            font-size: 24px;
            line-height: 1;
        }

        .drawer-close:hover {
            color: var(--acid);
            border-color: rgba(201, 247, 58, 0.4);
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-bottom: 24px;
        }

        .drawer-nav a {
            display: block;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-btn);
            color: var(--muted);
            font-size: 16px;
            font-weight: 600;
        }

        .drawer-nav a:hover,
        .drawer-nav a.active-drawer {
            color: var(--text);
            border-color: rgba(201, 247, 58, 0.3);
            background: rgba(201, 247, 58, 0.06);
        }

        .drawer-footer {
            margin-top: auto;
            display: grid;
            gap: 14px;
            padding-top: 20px;
            border-top: 1px solid var(--line);
        }

        .drawer-footer p {
            font-size: 12px;
            line-height: 1.7;
            color: rgba(225, 232, 244, 0.48);
        }
        
        .btn-block {
            width: 100%;
        }

        body.no-scroll {
            overflow: hidden;
        }

        .article-banner {
            position: relative;
            background:
                linear-gradient(90deg, rgba(8, 14, 24, 0.97) 0%, rgba(11, 18, 32, 0.93) 44%, rgba(11, 18, 32, 0.82) 100%),
                url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 148px 0 62px;
            border-bottom: 1px solid var(--line);
        }

        .article-banner::before {
            content: "";
            position: absolute;
            top: 0;
            left: -10%;
            width: 520px;
            height: 520px;
            background: radial-gradient(circle, rgba(41, 91, 164, 0.18), transparent 68%);
            pointer-events: none;
        }

        .article-banner-inner {
            width: min(980px, 92%);
            margin-inline: auto;
            position: relative;
            z-index: 1;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: rgba(225, 232, 244, 0.54);
            margin-bottom: 28px;
        }

        .article-breadcrumb a {
            color: rgba(225, 232, 244, 0.62);
        }

        .article-breadcrumb a:hover {
            color: var(--acid);
        }

        .breadcrumb-sep {
            color: rgba(255, 255, 255, 0.2);
        }

        .article-category {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 30px;
            padding: 0 12px;
            border-radius: var(--radius-sm);
            background: rgba(201, 247, 58, 0.09);
            border: 1px solid rgba(201, 247, 58, 0.24);
            color: var(--acid);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.2px;
            margin-bottom: 20px;
        }

        .article-banner h1 {
            font-size: clamp(34px, 4.6vw, 54px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -1px;
            color: var(--text);
            max-width: 900px;
            margin-bottom: 26px;
            text-wrap: balance;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px 28px;
            font-size: 14px;
            color: var(--muted);
            margin-top: 8px;
        }

        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .article-meta-item svg {
            width: 16px;
            height: 16px;
            color: var(--aqua);
            opacity: 0.8;
        }

        .article-main {
            position: relative;
            background:
                linear-gradient(180deg, rgba(10, 16, 28, 0.4), var(--bg) 400px),
                var(--bg);
        }

        .article-page-wrap {
            padding: 68px 0 84px;
        }

        .article-content-inner {
            width: min(780px, 92%);
            margin-inline: auto;
        }

        .article-content {
            color: #DDE5F2;
            font-size: 18px;
            line-height: 1.95;
        }

        .article-content > * + * {
            margin-top: 1.35em;
        }

        .article-content h2 {
            font-size: clamp(25px, 3.4vw, 32px);
            line-height: 1.35;
            font-weight: 800;
            color: var(--text);
            margin-top: 2em;
            padding-left: 16px;
            border-left: 3px solid var(--acid);
            border-radius: 0 6px 6px 0;
        }

        .article-content h3 {
            font-size: 23px;
            line-height: 1.45;
            font-weight: 750;
            color: var(--text);
            margin-top: 1.9em;
        }

        .article-content h4 {
            font-size: 19px;
            line-height: 1.5;
            font-weight: 700;
            color: var(--text);
            margin-top: 1.7em;
        }

        .article-content p {
            margin-bottom: 1.45em;
        }

        .article-content a {
            color: var(--aqua);
            border-bottom: 1px solid rgba(58, 215, 192, 0.3);
        }

        .article-content a:hover {
            color: var(--acid);
            border-bottom-color: rgba(201, 247, 58, 0.5);
        }

        .article-content strong {
            color: var(--text);
            font-weight: 750;
        }

        .article-content ul,
        .article-content ol {
            padding-left: 0;
            margin: 1.6em 0;
        }

        .article-content ul li,
        .article-content ol li {
            position: relative;
            padding-left: 28px;
            margin: 10px 0;
        }

        .article-content ul li::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 0.72em;
            width: 7px;
            height: 7px;
            background: var(--acid);
            border-radius: 2px;
            transform: rotate(45deg);
            box-shadow: 0 0 8px rgba(201, 247, 58, 0.4);
        }

        .article-content ol {
            counter-reset: article-ol;
        }

        .article-content ol li {
            counter-increment: article-ol;
            padding-left: 36px;
        }

        .article-content ol li::before {
            content: counter(article-ol) ".";
            position: absolute;
            left: 0;
            top: 0;
            font-variant-numeric: tabular-nums;
            font-weight: 800;
            color: var(--acid);
            font-size: 16px;
        }

        .article-content blockquote {
            position: relative;
            border-left: 3px solid var(--aqua);
            background: rgba(58, 215, 192, 0.06);
            padding: 18px 24px 18px 24px;
            margin: 1.9em 0;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            color: #D6E0EF;
            font-size: 17px;
        }

        .article-content blockquote p {
            margin: 0 0 0.5em;
        }

        .article-content blockquote p:last-child {
            margin-bottom: 0;
        }

        .article-content img {
            border-radius: var(--radius-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: var(--shadow-card);
            margin: 2em auto;
            width: auto;
            max-width: 100%;
        }

        .article-content figure {
            margin: 2em auto;
        }

        .article-content figure img {
            margin: 0;
        }

        .article-content figcaption {
            text-align: center;
            font-size: 13px;
            color: var(--muted);
            padding-top: 10px;
        }

        .article-content hr {
            margin: 2.6em 0;
            border: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--line), transparent);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 2em 0;
            overflow-x: auto;
            display: block;
        }

        .article-content th,
        .article-content td {
            border: 1px solid var(--line);
            padding: 12px 14px;
            font-size: 15px;
            line-height: 1.7;
            text-align: left;
        }

        .article-content th {
            background: rgba(58, 215, 192, 0.07);
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
        }

        .article-tagbar {
            width: min(780px, 92%);
            margin: 34px auto 0;
            padding-top: 26px;
            border-top: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .article-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 9px;
        }

        .tag-link {
            display: inline-flex;
            align-items: center;
            min-height: 32px;
            padding: 0 12px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.09);
            font-size: 13px;
            font-weight: 600;
            color: var(--muted);
        }

        .tag-link:hover {
            color: #0B1220;
            background: var(--acid);
            border-color: var(--acid);
        }

        .article-back {
            font-size: 14px;
            color: var(--muted);
        }

        .article-back a {
            color: var(--aqua);
        }

        .article-back a:hover {
            color: var(--acid);
        }

        .not-found-panel {
            padding: 96px 0;
            text-align: center;
        }

        .not-found-card {
            max-width: 560px;
            margin: 0 auto;
            background: var(--panel);
            border: 1px dashed rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-card);
            padding: 54px 40px;
            box-shadow: var(--shadow-card);
        }

        .not-found-title {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 58px;
            height: 58px;
            border-radius: 16px;
            background: rgba(240, 163, 94, 0.1);
            color: var(--orange);
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 22px;
        }

        .not-found-card h1,
        .not-found-card h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 14px;
        }

        .not-found-card p {
            color: var(--muted);
            margin-bottom: 26px;
        }

        .detail-cta {
            margin-top: 44px;
            width: min(1200px, 92%);
            margin-inline: auto;
        }

        .detail-cta-inner {
            background:
                radial-gradient(ellipse at top right, rgba(201, 247, 58, 0.07), transparent 46%),
                rgba(255, 255, 255, 0.045);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 42px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            position: relative;
            overflow: hidden;
        }

        .detail-cta-inner::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 110px;
            height: 2px;
            background: var(--acid);
            border-radius: 2px;
        }

        .detail-cta-text h2 {
            font-size: clamp(23px, 3vw, 30px);
            font-weight: 800;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 8px;
            letter-spacing: -0.2px;
        }

        .detail-cta-text p {
            font-size: 16px;
            color: var(--muted);
            max-width: 650px;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .detail-cta-actions {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            flex-shrink: 0;
        }

        .privacy-note {
            font-size: 12px;
            line-height: 1.7;
            color: rgba(225, 232, 244, 0.45);
            margin-top: 14px;
        }

        .site-footer {
            background: #080E18;
            border-top: 1px solid var(--line);
            padding: 64px 0 0;
        }

        .footer-inner {
            width: min(1200px, 92%);
            margin-inline: auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
        }

        .footer-about {
            font-size: 14px;
            line-height: 1.9;
            color: var(--muted);
            max-width: 430px;
        }

        .footer-group h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
            letter-spacing: 0.2px;
        }

        .footer-group ul {
            display: grid;
            gap: 12px;
        }

        .footer-group li a {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.6;
        }

        .footer-group li a:hover {
            color: var(--acid);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            padding: 22px 0;
        }

        .footer-bottom-inner {
            width: min(1200px, 92%);
            margin-inline: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px 40px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(225, 232, 244, 0.4);
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px 24px;
        }

        .footer-bottom-links a {
            color: rgba(225, 232, 244, 0.4);
        }

        .footer-bottom-links a:hover {
            color: var(--acid);
        }

        .contact-modal {
            position: fixed;
            inset: 0;
            z-index: 400;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.25s ease, visibility 0.25s ease;
        }

        .contact-modal.is-open {
            opacity: 1;
            visibility: visible;
        }

        .modal-backdrop {
            position: absolute;
            inset: 0;
            background: rgba(4, 8, 14, 0.75);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .modal-panel {
            position: relative;
            z-index: 1;
            width: min(520px, 100%);
            max-height: 92vh;
            overflow-y: auto;
            background: rgba(13, 21, 35, 0.94);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-modal);
            padding: 36px 34px 30px;
            box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(22px);
            -webkit-backdrop-filter: blur(22px);
        }

        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.12);
            display: grid;
            place-items: center;
            color: var(--text);
            background: rgba(255, 255, 255, 0.05);
            font-size: 20px;
            line-height: 1;
        }

        .modal-close:hover {
            color: var(--acid);
            border-color: rgba(201, 247, 58, 0.4);
        }

        .modal-title {
            font-size: 26px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.35;
            margin-bottom: 8px;
        }

        .modal-sub {
            font-size: 15px;
            color: var(--muted);
            margin-bottom: 26px;
        }

        .form-grid {
            display: grid;
            gap: 18px;
        }

        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: rgba(225, 232, 244, 0.74);
            margin-bottom: 7px;
        }

        .form-control {
            width: 100%;
            min-height: 46px;
            background: rgba(255, 255, 255, 0.045);
            border: 1px solid rgba(255, 255, 255, 0.13);
            border-radius: var(--radius-btn);
            padding: 11px 14px;
            color: var(--text);
            font-size: 15px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
        }

        .form-control::placeholder {
            color: rgba(225, 232, 244, 0.3);
        }

        .form-control:hover {
            border-color: rgba(255, 255, 255, 0.2);
        }

        .form-control:focus {
            outline: none;
            border-color: rgba(58, 215, 192, 0.7);
            box-shadow: 0 0 0 4px rgba(58, 215, 192, 0.1);
            background: rgba(58, 215, 192, 0.045);
        }

        textarea.form-control {
            min-height: 100px;
            resize: vertical;
        }

        .form-privacy {
            font-size: 12px;
            line-height: 1.7;
            color: rgba(225, 232, 244, 0.42);
            text-align: left;
            margin-top: 4px;
        }

        .modal-success {
            text-align: center;
            padding: 40px 0 20px;
        }

        .success-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: rgba(201, 247, 58, 0.1);
            border: 1px solid rgba(201, 247, 58, 0.35);
            display: grid;
            place-items: center;
            color: var(--acid);
        }

        .success-icon svg {
            width: 28px;
            height: 28px;
        }

        .modal-success h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 10px;
        }

        .modal-success p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.7;
            max-width: 320px;
            margin: 0 auto;
        }

        .article-single-noarticle .site-header {
            background: rgba(8, 14, 24, 0.72);
        }

        @media (max-width: 1023px) {
            .main-nav {
                display: none;
            }

            .desktop-mode {
                display: none;
            }

            .header-burger {
                display: inline-flex;
            }

            .header-cta {
                margin-left: auto;
            }

            .header-inner {
                gap: 14px;
            }

            :root {
                --space-section: 80px;
            }
        }

        @media (max-width: 767px) {
            .site-header {
                height: 64px;
            }

            .logo-text {
                font-size: 18px;
            }

            .article-banner {
                padding: 112px 0 44px;
            }

            .article-banner h1 {
                font-size: clamp(28px, 7vw, 38px);
                line-height: 1.24;
                letter-spacing: -0.3px;
            }

            .article-breadcrumb {
                margin-bottom: 20px;
                font-size: 13px;
            }

            .article-meta {
                gap: 10px 16px;
                font-size: 13px;
            }

            .article-page-wrap {
                padding: 46px 0 58px;
            }

            .article-content {
                font-size: 17px;
                line-height: 1.9;
            }

            .article-content h2 {
                font-size: 23px;
            }

            .article-content h3 {
                font-size: 20px;
            }

            .article-content ul li,
            .article-content ol li {
                padding-left: 24px;
            }

            .article-content table {
                display: block;
                overflow-x: auto;
                white-space: nowrap;
            }

            .article-tagbar {
                margin-top: 24px;
                padding-top: 20px;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 36px;
                padding-bottom: 30px;
            }

            .footer-about {
                max-width: 100%;
            }

            .footer-bottom-inner {
                justify-content: center;
                text-align: center;
            }

            .footer-bottom-links {
                justify-content: center;
            }

            .modal-panel {
                padding: 28px 22px 22px;
                border-radius: 16px;
            }

            .detail-cta-inner {
                flex-direction: column;
                align-items: stretch;
                gap: 24px;
                padding: 32px 24px;
            }

            .detail-cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .detail-cta-actions .btn {
                width: 100%;
            }

            .success-icon {
                width: 54px;
                height: 54px;
            }
        }

        @media (max-width: 520px) {
            .container,
            .header-inner,
            .footer-inner,
            .footer-bottom-inner,
            .article-banner-inner,
            .article-content-inner,
            .article-tagbar,
            .detail-cta {
                width: 100%;
                padding-left: 18px;
                padding-right: 18px;
            }

            .site-header {
                padding: 0 4px;
            }

            .header-inner {
                padding: 0 12px;
            }

            .logo-icon svg {
                width: 22px;
                height: 22px;
            }

            .logo-text {
                font-size: 17px;
            }

            .article-banner h1 {
                font-size: 27px;
            }

            .article-category {
                margin-bottom: 16px;
            }

            .article-meta {
                display: grid;
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .article-meta-item {
                gap: 8px;
            }

            .privacy-note {
                text-align: left;
            }
        }

/* roulang page: category1 */
:root {
        --bg: #0b1220;
        --bg-soft: #101a2b;
        --panel: rgba(255, 255, 255, 0.045);
        --panel-strong: rgba(17, 25, 40, 0.72);
        --line: rgba(255, 255, 255, 0.08);
        --line-strong: rgba(255, 255, 255, 0.14);
        --text: #eaf0fa;
        --muted: rgba(225, 232, 244, 0.62);
        --brand: #c9f73a;
        --acid-soft: rgba(201, 247, 58, 0.12);
        --aqua: #3ad7c0;
        --orange: #f0a35e;
        --radius-sm: 4px;
        --radius-md: 8px;
        --radius-lg: 14px;
        --radius-xl: 18px;
        --shadow: 0 14px 40px rgba(0, 0, 0, 0.25);
        --shadow-hover: 0 22px 60px rgba(0, 0, 0, 0.36);
        --space-section: 112px;
        --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-stack);
        background: var(--bg);
        color: var(--text);
        font-size: 17px;
        line-height: 1.85;
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }

    body.lock {
        overflow: hidden;
    }

    img {
        max-width: 100%;
        display: block;
        border-radius: var(--radius-lg);
    }

    a {
        color: inherit;
        text-decoration: none;
    }

    ul,
    ol {
        list-style: none;
    }

    button,
    input,
    textarea {
        font-family: inherit;
        font-size: 1rem;
        border: 0;
        outline: none;
    }

    span,
    p,
    h1,
    h2,
    h3,
    h4 {
        font-feature-settings: "tnum" 0;
    }

    .container-wide {
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 28px;
        padding-right: 28px;
    }

    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 200;
        background: rgba(11, 18, 32, 0.72);
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        border-bottom: 1px solid transparent;
        transition: background 0.3s ease, border-color 0.3s ease;
    }

    .site-header.scrolled {
        background: rgba(8, 13, 23, 0.96);
        border-bottom: 1px solid var(--line);
    }

    .header-inner {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 28px;
        height: 82px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
    }

    .header-left {
        flex: 0 0 auto;
    }

    .logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-weight: 800;
        font-size: 21px;
        letter-spacing: -0.2px;
        color: var(--text);
    }

    .logo-icon svg {
        width: 28px;
        height: 28px;
        color: var(--brand);
    }

    .logo-text {
        white-space: nowrap;
    }

    .logo-text .dot {
        color: var(--brand);
        margin-left: 2px;
    }

    .main-nav {
        display: flex;
        align-items: center;
        gap: 30px;
    }

    .main-nav a {
        font-size: 15px;
        color: rgba(225, 232, 244, 0.68);
        padding: 10px 2px;
        position: relative;
        transition: color 0.2s;
        white-space: nowrap;
    }

    .main-nav a:hover {
        color: var(--text);
    }

    .main-nav a.active {
        color: var(--text);
    }

    .main-nav a.active::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 100%;
        height: 2px;
        background: var(--brand);
        border-radius: 2px;
    }

    .header-cta {
        display: flex;
        align-items: center;
        gap: 12px;
        flex: 0 0 auto;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        font-weight: 700;
        font-size: 16px;
        line-height: 1;
        border: 0;
        padding: 15px 24px;
        border-radius: var(--radius-md);
        cursor: pointer;
        transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
        text-align: center;
    }

    .btn:focus-visible {
        outline: 3px solid var(--aqua);
        outline-offset: 3px;
    }

    .btn-primary {
        background: var(--brand);
        color: #1a2005;
        box-shadow: 0 10px 30px rgba(201, 247, 58, 0.2), 0 0 0 4px rgba(201, 247, 58, 0.05);
    }

    .btn-primary:hover {
        background: #d8ff5b;
        box-shadow: 0 12px 34px rgba(201, 247, 58, 0.28), 0 0 0 6px rgba(201, 247, 58, 0.08);
        transform: translateY(-1px);
    }

    .btn-primary:active {
        transform: translateY(1px);
        box-shadow: 0 6px 18px rgba(201, 247, 58, 0.18);
        filter: brightness(0.94);
    }

    .btn-small {
        padding: 10px 16px;
        font-size: 14px;
    }

    .btn-outline {
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.18);
        color: var(--text);
    }

    .btn-outline:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.32);
        transform: translateY(-2px);
    }

    .header-burger {
        display: none;
        width: 44px;
        height: 44px;
        align-items: center;
        justify-content: center;
        background: transparent;
        color: var(--text);
        border-radius: var(--radius-md);
        cursor: pointer;
    }

    .header-burger svg {
        width: 26px;
        height: 26px;
    }

    .header-burger:focus-visible {
        outline: 2px solid var(--brand);
        outline-offset: 2px;
    }

    .drawer-mask {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(5, 8, 13, 0.7);
        z-index: 310;
        opacity: 0;
        transition: opacity 0.25s;
    }

    .drawer-panel {
        position: fixed;
        top: 0;
        right: -320px;
        width: 310px;
        height: 100vh;
        z-index: 320;
        background: #101a2c;
        border-left: 1px solid var(--line);
        display: flex;
        flex-direction: column;
        align-items: stretch;
        padding: 28px 24px 24px;
        transition: right 0.25s ease;
        box-shadow: -16px 0 46px rgba(0, 0, 0, 0.35);
    }

    .drawer-panel.open {
        right: 0;
    }

    .drawer-panel-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 28px;
    }

    .drawer-close {
        width: 42px;
        height: 42px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.08);
        border-radius: 50%;
        color: var(--text);
        cursor: pointer;
    }

    .drawer-close svg {
        width: 20px;
        height: 20px;
    }

    .drawer-links {
        display: flex;
        flex-direction: column;
        gap: 6px;
        flex: 1;
    }

    .drawer-links a {
        display: block;
        padding: 13px 12px;
        font-size: 16px;
        font-weight: 600;
        border-radius: 10px;
        color: var(--muted);
        transition: background 0.2s, color 0.2s;
        border-left: 3px solid transparent;
    }

    .drawer-links a:hover {
        color: var(--text);
        background: rgba(255, 255, 255, 0.06);
    }

    .drawer-links a.active {
        color: var(--brand);
        border-left-color: var(--brand);
        background: rgba(201, 247, 58, 0.05);
    }

    .drawer-footer {
        margin-top: 20px;
        border-top: 1px solid var(--line);
        padding-top: 20px;
        display: grid;
        gap: 12px;
    }

    .drawer-footer .privacy-note {
        font-size: 12px;
        line-height: 1.6;
        color: rgba(225, 232, 244, 0.46);
    }

    .page-hero {
        padding-top: 156px;
        padding-bottom: 68px;
        position: relative;
        background:
            linear-gradient(100deg, rgba(8, 13, 25, 0.96) 0%, rgba(9, 14, 26, 0.86) 46%, rgba(9, 14, 26, 0.7) 100%),
            url('/assets/images/backpic/back-1.webp') center 30% / cover no-repeat;
        border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    }

    .page-hero-inner {
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 28px;
        padding-right: 28px;
        position: relative;
        z-index: 2;
        display: grid;
        grid-template-columns: minmax(0, 1fr) 360px;
        gap: 52px;
        align-items: end;
    }

    .hero-kicker {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(201, 247, 58, 0.08);
        border: 1px solid rgba(201, 247, 58, 0.22);
        color: var(--brand);
        font-size: 14px;
        font-weight: 600;
        padding: 6px 14px;
        border-radius: 40px;
        margin-bottom: 20px;
    }

    .hero-kicker svg {
        width: 18px;
        height: 18px;
    }

    .page-hero h1 {
        font-size: clamp(42px, 6vw, 64px);
        line-height: 1.1;
        font-weight: 800;
        letter-spacing: -1.5px;
        margin-bottom: 18px;
    }

    .page-hero h1 .brand {
        color: var(--brand);
    }

    .page-hero .hero-desc {
        font-size: 18px;
        line-height: 1.65;
        color: rgba(225, 232, 244, 0.68);
        max-width: 700px;
    }

    .hero-aside {
        border: 1px solid var(--line);
        background: rgba(255, 255, 255, 0.04);
        -webkit-backdrop-filter: blur(14px);
        backdrop-filter: blur(14px);
        border-radius: var(--radius-lg);
        padding: 24px 22px;
        position: relative;
        overflow: hidden;
    }

    .hero-aside::before {
        content: "";
        position: absolute;
        top: 0;
        left: 18px;
        height: 2px;
        width: 56px;
        background: var(--brand);
    }

    .hero-aside h3 {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 10px;
    }

    .hero-aside ul {
        display: grid;
        gap: 12px;
        margin: 16px 0 20px;
    }

    .hero-aside li {
        display: flex;
        gap: 10px;
        align-items: baseline;
        color: var(--muted);
        font-size: 15px;
    }

    .hero-aside li::before {
        content: "";
        width: 5px;
        height: 5px;
        background: var(--aqua);
        border-radius: 50%;
        flex: 0 0 5px;
        margin-top: 10px;
    }

    .hero-aside .privacy-note {
        border-top: 1px solid var(--line);
        padding-top: 16px;
        font-size: 12px;
        color: rgba(225, 232, 244, 0.44);
        line-height: 1.7;
    }

    .section {
        padding: var(--space-section) 0;
    }

    .section-header {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 40px;
        margin-bottom: 56px;
    }

    .section-eyebrow {
        display: block;
        font-size: 14px;
        font-weight: 600;
        letter-spacing: 1.2px;
        text-transform: uppercase;
        color: var(--aqua);
        margin-bottom: 12px;
    }

    .section h2 {
        font-size: clamp(28px, 3.6vw, 44px);
        line-height: 1.2;
        font-weight: 800;
        letter-spacing: -0.4px;
        max-width: 760px;
    }

    .section-header p {
        color: var(--muted);
        max-width: 540px;
        font-size: 17px;
        line-height: 1.75;
    }

    .intro-grid {
        display: grid;
        grid-template-columns: 0.9fr 1.6fr 0.7fr;
        gap: 18px;
    }

    .intro-panel {
        background: var(--panel);
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        padding: 24px 24px;
        transition: background 0.25s, border 0.25s, transform 0.25s;
    }

    .intro-panel:hover {
        border-color: rgba(201, 247, 58, 0.5);
        transform: translateY(-3px);
    }

    .intro-panel .ico {
        width: 42px;
        height: 42px;
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(58, 215, 192, 0.12);
        color: var(--aqua);
        margin-bottom: 18px;
    }

    .intro-panel .ico svg {
        width: 22px;
        height: 22px;
    }

    .intro-panel:nth-child(2) .ico {
        background: rgba(201, 247, 58, 0.1);
        color: var(--brand);
    }

    .intro-panel h3 {
        font-size: 20px;
        font-weight: 700;
        margin-bottom: 8px;
    }

    .intro-panel p {
        font-size: 15px;
        color: var(--muted);
        line-height: 1.7;
    }

    .stat-band {
        background: #0a1b26;
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
        padding: 56px 0;
    }

    .stat-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 28px;
    }

    .stat-item {
        display: flex;
        flex-direction: column;
        gap: 6px;
    }

    .stat-item .stat-num {
        font-size: clamp(40px, 5vw, 58px);
        font-weight: 800;
        line-height: 1;
        color: var(--brand);
        font-variant-numeric: tabular-nums;
        letter-spacing: -1px;
    }

    .stat-item .stat-label {
        color: var(--muted);
        font-size: 15px;
        position: relative;
        padding-top: 14px;
    }

    .stat-item .stat-label::before {
        content: "";
        display: block;
        width: 26px;
        height: 2px;
        background: var(--brand);
        margin-bottom: 10px;
        margin-top: 4px;
        position: relative;
    }

    .stat-aside {
        border-left: 1px solid var(--line);
        padding-left: 28px;
    }

    .timeline-section {
        background: var(--bg-soft);
    }

    .timeline-wrap {
        display: grid;
        grid-template-columns: 340px 1fr;
        gap: 68px;
        align-items: start;
    }

    .timeline-left {
        position: sticky;
        top: 130px;
    }

    .timeline-left h2 {
        font-size: clamp(28px, 3vw, 40px);
        line-height: 1.2;
        margin-bottom: 18px;
    }

    .timeline-left p {
        color: var(--muted);
        margin-bottom: 24px;
    }

    .timeline-list {
        position: relative;
        padding-left: 24px;
    }

    .timeline-list::before {
        content: "";
        position: absolute;
        top: 10px;
        bottom: 10px;
        left: 5px;
        width: 1px;
        background: linear-gradient(to bottom, var(--brand) 0%, rgba(255, 255, 255, 0.12) 30%, rgba(255, 255, 255, 0.05) 100%);
    }

    .timeline-item {
        position: relative;
        padding: 1px 0 30px 22px;
    }

    .timeline-item::before {
        content: "";
        position: absolute;
        left: -26px;
        top: 14px;
        width: 9px;
        height: 9px;
        background: var(--brand);
        border: 2px solid #0b1220;
        border-radius: 50%;
    }

    .timeline-date {
        font-size: 14px;
        color: var(--aqua);
        letter-spacing: 0.4px;
        font-variant-numeric: tabular-nums;
        display: block;
        margin-bottom: 6px;
    }

    .timeline-item h3 {
        font-size: 20px;
        font-weight: 700;
        line-height: 1.45;
        margin-bottom: 4px;
    }

    .timeline-item p {
        font-size: 15px;
        color: var(--muted);
        line-height: 1.7;
    }

    .timeline-item:last-child {
        padding-bottom: 0;
    }

    .feature-visual {
        border: 1px solid var(--line);
        border-radius: var(--radius-xl);
        overflow: hidden;
        background: var(--panel);
    }

    .visual-media {
        position: relative;
        min-height: 320px;
        background: url('/assets/images/coverpic/cover-3.webp') center 45% / cover no-repeat;
        display: flex;
        align-items: flex-end;
    }

    .visual-media::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(9, 14, 26, 0.05) 0%, rgba(9, 14, 26, 0.82) 86%);
        border-radius: 0 0 0;
    }

    .visual-credit {
        position: relative;
        z-index: 2;
        margin: 0 28px 24px;
        width: 100%;
    }

    .visual-credit p {
        color: var(--text);
        text-shadow: 0 2px 16px rgba(0, 0, 0, 0.55);
        font-size: 16px;
        max-width: 650px;
    }

    .visual-body {
        padding: 28px;
        display: grid;
        grid-template-columns: 0.85fr 1.15fr;
        gap: 44px;
        align-items: center;
    }

    .visual-body h3 {
        color: var(--text);
        font-size: clamp(22px, 2.6vw, 30px);
        line-height: 1.35;
    }

    .visual-body h3 span {
        color: var(--brand);
    }

    .visual-body p {
        color: var(--muted);
    }

    .spotlight-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 18px;
    }

    .spot-card {
        display: grid;
        grid-template-columns: 52px 1fr;
        gap: 14px;
        padding: 18px;
        background: var(--panel);
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
    }

    .spot-card .marker {
        width: 36px;
        height: 36px;
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(201, 247, 58, 0.08);
        border: 1px solid rgba(201, 247, 58, 0.32);
        color: var(--brand);
        font-weight: 800;
        font-size: 16px;
    }

    .spot-card h3 {
        font-size: 17px;
        margin-bottom: 6px;
    }

    .spot-card p {
        color: var(--muted);
        font-size: 15px;
        line-height: 1.7;
    }

    .cta-strip {
        background: #0a1b26;
        position: relative;
        overflow: hidden;
    }

    .cta-strip::before {
        content: "";
        position: absolute;
        top: -40%;
        right: 10%;
        width: 420px;
        height: 420px;
        background: radial-gradient(circle, rgba(41, 91, 164, 0.28) 0%, rgba(11, 18, 32, 0) 62%);
        border-radius: 50%;
        pointer-events: none;
    }

    .cta-inner {
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 28px;
        padding-right: 28px;
        display: grid;
        grid-template-columns: 1.4fr 0.6fr;
        gap: 48px;
        align-items: center;
        position: relative;
        z-index: 2;
    }

    .cta-copy h2 {
        font-size: clamp(27px, 3.4vw, 40px);
        line-height: 1.2;
        letter-spacing: -0.3px;
    }

    .cta-copy p {
        color: var(--muted);
        margin: 16px 0 12px;
        max-width: 660px;
    }

    .cta-copy .privacy-note {
        font-size: 12px;
        color: rgba(225, 232, 244, 0.42);
        margin-top: 12px;
    }

    .cta-actions {
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .faq-mini {
        margin-top: 44px;
        border-top: 1px solid var(--line);
        display: grid;
        gap: 0;
    }

    .faq-mini details {
        border-bottom: 1px solid var(--line);
    }

    .faq-mini summary {
        cursor: pointer;
        padding: 20px 4px;
        color: var(--text);
        font-weight: 600;
        font-size: 17px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 20px;
        list-style: none;
        border-radius: 0;
        transition: color 0.2s;
    }

    .faq-mini details[open] summary {
        color: var(--brand);
    }

    .faq-mini summary::-webkit-details-marker {
        display: none;
    }

    .faq-mini summary .ico-plus {
        display: inline-flex;
        flex: 0 0 auto;
        width: 30px;
        height: 30px;
        justify-content: center;
        align-items: center;
        border: 1px solid var(--line);
        border-radius: 50%;
        position: relative;
        transition: all 0.3s;
    }

    .faq-mini summary .ico-plus::before,
    .faq-mini summary .ico-plus::after {
        content: "";
        position: absolute;
        background: currentColor;
        border-radius: 4px;
        transition: transform 0.3s;
    }

    .faq-mini summary .ico-plus::before {
        width: 10px;
        height: 1.6px;
    }

    .faq-mini summary .ico-plus::after {
        width: 1.6px;
        height: 10px;
    }

    .faq-mini details[open] summary .ico-plus::before {
        transform: rotate(45deg);
    }

    .faq-mini details[open] summary .ico-plus::after {
        transform: rotate(135deg);
    }

    .faq-mini .faq-answer {
        padding: 0 32px 24px 4px;
        color: var(--muted);
        line-height: 1.8;
        font-size: 15.5px;
    }

    .site-footer {
        border-top: 1px solid var(--line);
        background: rgba(5, 10, 18, 0.82);
        padding: 68px 0 28px;
    }

    .footer-inner {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 28px;
        display: grid;
        grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr);
        gap: 44px;
    }

    .footer-about {
        margin-top: 14px;
        color: var(--muted);
        font-size: 14.5px;
        line-height: 1.8;
        max-width: 330px;
    }

    .footer-logo {
        display: flex;
        align-items: center;
        gap: 8px;
        font-weight: 800;
        font-size: 19px;
    }

    .footer-brand-text {
        color: var(--text);
    }

    .footer-group h4 {
        font-size: 15px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 18px;
    }

    .footer-group a {
        display: block;
        font-size: 14px;
        color: var(--muted);
        padding: 5px 0;
        transition: color 0.2s;
    }

    .footer-group a:hover {
        color: var(--brand);
    }

    .footer-bottom {
        max-width: 1200px;
        margin: 0 auto;
        padding: 32px 28px 0;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        margin-top: 48px;
        display: flex;
        justify-content: space-between;
        gap: 20px;
        flex-wrap: wrap;
        color: rgba(225, 232, 244, 0.36);
        font-size: 13px;
    }

    .footer-bottom-links a {
        color: rgba(225, 232, 244, 0.36);
        margin-left: 18px;
        transition: color 0.2s;
    }

    .footer-bottom-links a:hover {
        color: var(--text);
    }

    .scroll-bar {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 28px;
    }

    .modal-mask {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(5, 8, 13, 0.84);
        z-index: 400;
        padding: 30px 20px;
        overflow-y: auto;
        opacity: 0;
        align-items: flex-start;
        justify-content: center;
        transition: opacity 0.22s;
    }

    .modal-mask.show {
        display: flex;
        opacity: 1;
    }

    .modal-card {
        width: 100%;
        max-width: 520px;
        background: linear-gradient(0deg, rgba(18, 29, 42, 0.96), rgba(12, 20, 32, 0.98));
        border: 1px solid var(--line-strong);
        border-radius: var(--radius-xl);
        padding: 42px 36px 28px;
        box-shadow: 0 30px 90px rgba(0, 0, 0, 0.44);
        position: relative;
        margin: auto 0;
    }

    .modal-card .modal-top {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        margin-bottom: 26px;
    }

    .modal-card h3 {
        font-size: 26px;
        font-weight: 800;
    }

    .modal-card .modal-sub {
        color: var(--muted);
        font-size: 15px;
        margin-top: 6px;
    }

    .modal-close {
        width: 46px;
        height: 46px;
        background: rgba(255, 255, 255, 0.07);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--muted);
        cursor: pointer;
        transition: all 0.2s;
        border: 1px solid transparent;
    }

    .modal-close:hover {
        color: var(--text);
        background: rgba(255, 255, 255, 0.13);
        border-color: var(--line);
    }

    .modal-close svg {
        width: 20px;
        height: 20px;
    }

    .modal-form {
        display: grid;
        gap: 18px;
    }

    .form-row {
        display: block;
    }

    .form-row label {
        display: block;
        font-size: 14px;
        font-weight: 600;
        color: rgba(225, 232, 244, 0.76);
        margin-bottom: 8px;
    }

    .form-row input,
    .form-row textarea,
    .form-row select {
        width: 100%;
        padding: 13px 14px;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 10px;
        color: var(--text);
        transition: border 0.2s, box-shadow 0.2s, background 0.2s;
    }

    .form-row input::placeholder,
    .form-row textarea::placeholder {
        color: rgba(225, 232, 244, 0.4);
    }

    .form-row input:focus,
    .form-row textarea:focus,
    .form-row select:focus {
        border-color: var(--aqua);
        background: rgba(255, 255, 255, 0.08);
        box-shadow: 0 0 0 4px rgba(58, 215, 192, 0.12);
    }

    .form-row textarea {
        min-height: 80px;
        resize: vertical;
        line-height: 1.6;
    }

    .form-submit {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 18px;
        margin-top: 10px;
        flex-wrap: wrap;
    }

    .modal-privacy {
        font-size: 12px;
        color: rgba(225, 232, 244, 0.34);
        line-height: 1.7;
        border-top: 1px solid rgba(255, 255, 255, 0.07);
        padding-top: 18px;
        margin-top: 24px;
    }

    .success-tip {
        display: none;
        background: rgba(201, 247, 58, 0.09);
        border: 1px solid rgba(201, 247, 58, 0.28);
        padding: 14px 16px;
        border-radius: 10px;
        color: var(--brand);
        font-size: 15px;
        margin-top: 12px;
    }

    @media (max-width: 1024px) {
        .main-nav {
            display: none;
        }

        .desktop-mode {
            display: none;
        }

        .header-burger {
            display: flex;
        }

        .header-inner {
            height: 70px;
        }

        .page-hero {
            padding-top: 116px;
        }

        .page-hero-inner {
            grid-template-columns: 1fr;
        }

        .hero-aside {
            max-width: 520px;
        }

        .intro-grid {
            grid-template-columns: 1fr 1fr;
        }

        .stat-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 36px 28px;
        }

        .timeline-wrap {
            grid-template-columns: 1fr;
            gap: 44px;
        }

        .timeline-left {
            position: static;
        }

        .section {
            --space-section: 80px;
        }

        .cta-inner {
            grid-template-columns: 1fr;
            gap: 32px;
            padding: 72px 28px;
        }

        .cta-actions {
            justify-content: flex-start;
        }

        .footer-inner {
            grid-template-columns: 1.6fr 0.8fr 0.8fr;
        }

        .footer-group:last-child {
            grid-column: 2 / 3;
            margin-top: 0;
        }
    }

    @media (max-width: 768px) {
        body {
            font-size: 16px;
        }

        .container-wide,
        .header-inner,
        .page-hero-inner,
        .footer-inner,
        .footer-bottom,
        .cta-inner {
            padding-left: 20px;
            padding-right: 20px;
        }

        .main-nav {
            display: none;
        }

        .section-header {
            flex-direction: column;
            align-items: flex-start;
            gap: 18px;
            margin-bottom: 38px;
        }

        .section-header p {
            font-size: 16px;
        }

        .intro-grid {
            grid-template-columns: 1fr;
        }

        .stat-grid {
            grid-template-columns: repeat(2, 1fr);
        }

        .stat-item .stat-num {
            font-size: 40px;
        }

        .faq-mini details summary {
            font-size: 16px;
        }

        .section {
            --space-section: 64px;
        }

        .footer-inner {
            grid-template-columns: 1fr;
            gap: 36px;
        }

        .footer-group:last-child {
            grid-column: auto;
        }

        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
        }

        .footer-bottom-links a {
            margin-left: 0;
            margin-right: 12px;
        }

        .visual-body {
            grid-template-columns: 1fr;
            gap: 14px;
        }

        .spotlight-grid {
            grid-template-columns: 1fr;
        }

        .page-hero {
            padding-bottom: 52px;
        }

        .modal-card {
            padding: 36px 24px 22px;
        }
    }

    @media (max-width: 560px) {
        .header-inner {
            padding-left: 18px;
            padding-right: 18px;
        }

        .header-burger {
            width: 40px;
        }

        .logo {
            font-size: 18px;
        }

        .logo-text {
            white-space: nowrap;
        }

        .page-hero {
            padding-top: 108px;
        }

        .page-hero h1 {
            font-size: 38px;
        }

        .hero-aside {
            padding: 18px 16px;
        }

        .stat-grid {
            grid-template-columns: 1fr;
        }

        .timeline-item {
            padding-left: 18px;
        }

        .visual-media {
            min-height: 200px;
        }

        .visual-credit {
            margin: 0 16px 16px;
        }

        .cta-actions {
            display: block;
            width: 100%;
        }

        .cta-actions .btn {
            width: 100%;
        }

        .btn {
            padding-top: 15px;
            padding-bottom: 15px;
        }

        .drawer-panel {
            width: 84%;
            max-width: 340px;
        }

        .cta-inner {
            padding-top: 52px;
            padding-bottom: 52px;
        }

        .modal-card {
            max-height: 92vh;
            overflow-y: auto;
            padding-top: 30px;
        }
    }

/* roulang page: category3 */
:root {
            --bg: #0B1220;
            --panel: rgba(255, 255, 255, 0.045);
            --panel-strong: rgba(17, 25, 40, 0.72);
            --line: rgba(255, 255, 255, 0.08);
            --line-hover: rgba(201, 247, 58, 0.45);
            --text: #EAF0FA;
            --muted: rgba(225, 232, 244, 0.62);
            --brand: #C9F73A;
            --aqua: #3AD7C0;
            --orange: #F0A35E;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-card: 14px;
            --radius-modal: 18px;
            --shadow: 0 14px 40px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 22px 60px rgba(0, 0, 0, 0.36);
            --space-section: clamp(64px, 8vw, 112px);
            --container: 1200px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg);
            color: var(--text);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 17px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
        }

        body.modal-open {
            overflow: hidden;
        }

        a {
            color: var(--text);
            text-decoration: none;
            transition: color .2s ease;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            font-family: inherit;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 18, 32, 0.78);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .site-header.scrolled {
            background: rgba(11, 18, 32, 0.92);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 32px;
            height: 76px;
        }

        .header-left {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(201, 247, 58, 0.12);
            color: var(--brand);
        }

        .logo-icon svg {
            width: 20px;
            height: 20px;
        }

        .logo-text {
            letter-spacing: -0.2px;
        }

        .logo-text .dot {
            color: var(--brand);
            font-weight: 700;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .main-nav a {
            display: inline-block;
            padding: 10px 16px;
            font-size: 15px;
            color: var(--muted);
            border-radius: 8px;
            font-weight: 500;
            transition: color .2s ease, background .2s ease;
        }

        .main-nav a:hover {
            color: var(--text);
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a.active {
            color: var(--brand);
            background: rgba(201, 247, 58, 0.08);
            box-shadow: inset 0 -2px 0 rgba(201, 247, 58, 0.4);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .desktop-mode {
            display: block;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 0;
            border-radius: var(--radius-md);
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            line-height: 1;
            transition: background .2s ease, color .2s ease, box-shadow .2s ease, transform .15s ease;
            text-decoration: none;
            padding: 14px 26px;
        }

        .btn:focus-visible {
            outline: 2px solid var(--aqua);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--brand);
            color: #0B1220;
            box-shadow: 0 0 0 4px rgba(199, 247, 58, 0.08), 0 10px 30px rgba(199, 247, 58, 0.18);
        }

        .btn-primary:hover {
            background: #D8FF5C;
            box-shadow: 0 0 0 6px rgba(199, 247, 58, 0.14), 0 14px 38px rgba(199, 247, 58, 0.3);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 0 0 3px rgba(199, 247, 58, 0.1), 0 6px 18px rgba(199, 247, 58, 0.15);
        }

        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1px solid rgba(255, 255, 255, 0.24);
            box-shadow: none;
        }

        .btn-outline:hover {
            border-color: var(--aqua);
            color: var(--aqua);
            background: rgba(58, 215, 192, 0.08);
        }

        .btn-small {
            padding: 10px 18px;
            font-size: 14px;
        }

        .header-burger {
            display: none;
            background: none;
            border: 0;
            color: var(--text);
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            cursor: pointer;
        }

        .header-burger svg {
            width: 22px;
            height: 22px;
        }

        .drawer-mask {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(4px);
            z-index: 190;
            opacity: 0;
            visibility: hidden;
            transition: opacity .2s ease, visibility .2s ease;
        }

        .drawer-mask.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            z-index: 200;
            width: min(360px, 88vw);
            background: #101A2B;
            padding: 24px;
            box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5);
            transform: translateX(100%);
            transition: transform .25s ease;
            overflow-y: auto;
            border-left: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .drawer-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            border: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        .mobile-nav {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav a {
            display: block;
            padding: 12px;
            font-size: 16px;
            color: var(--muted);
            border-radius: 8px;
            transition: background .2s ease, color .2s ease;
        }

        .mobile-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text);
        }

        .mobile-nav a.active {
            color: var(--brand);
            background: rgba(201, 247, 58, 0.08);
        }

        .drawer-footer {
            padding-top: 24px;
            margin-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .drawer-footer p {
            font-size: 12px;
            color: rgba(225, 232, 244, 0.4);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .drawer-footer .btn {
            width: 100%;
        }

        .mobile-drawer .btn-primary {
            background: var(--brand);
            color: #0B1220;
        }

        .page-main {
            opacity: 0;
            animation: fadeIn .5s ease forwards;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }

        .category-hero {
            padding: 72px 32px 48px;
            background: var(--bg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .category-hero .hero-inner {
            max-width: var(--container);
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--muted);
        }

        .breadcrumb a {
            color: var(--muted);
            transition: color .2s ease;
        }

        .breadcrumb a:hover {
            color: var(--brand);
        }

        .breadcrumb span {
            color: rgba(225, 232, 244, 0.4);
        }

        .breadcrumb .cur {
            color: var(--text);
        }

        .category-hero h1 {
            font-size: clamp(40px, 5vw, 60px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1px;
            max-width: 900px;
        }

        .category-hero h1 .accent {
            color: var(--brand);
        }

        .hero-desc {
            font-size: 18px;
            color: var(--muted);
            max-width: 760px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 12px;
            align-items: center;
        }

        .scroll-indicator {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(225, 232, 244, 0.4);
        }

        .point-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            max-width: 800px;
        }

        .point-box {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 14px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.07);
            font-size: 14px;
            color: var(--muted);
            gap: 8px;
            transition: border-color .2s ease;
        }

        .point-box:hover {
            border-color: rgba(201, 247, 58, 0.3);
        }

        .point-box svg {
            width: 16px;
            height: 16px;
            color: var(--brand);
        }

        .hero-visual {
            margin-top: 8px;
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
            justify-content: flex-start;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .hero-visual .visual-desc {
            position: relative;
            z-index: 2;
            padding: 28px 32px;
            background: linear-gradient(90deg, rgba(11, 18, 32, 0.9), rgba(11, 18, 32, 0.45) 60%, rgba(11, 18, 32, 0.2));
            width: 100%;
            color: var(--text);
            font-size: 15px;
            border-bottom-left-radius: var(--radius-card);
            border-bottom-right-radius: var(--radius-card);
            max-width: 700px;
        }

        .hero-visual .visual-desc strong {
            color: var(--brand);
            font-weight: 600;
        }

        .section {
            padding: clamp(56px, 7vw, 96px) 32px;
        }

        .section-inner {
            max-width: var(--container);
            margin: 0 auto;
        }

        .visual-showcase {
            padding: 0 32px 80px;
        }

        .showcase-inner {
            max-width: var(--container);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.55fr 1fr;
            gap: 28px;
        }

        .showcase-main {
            position: relative;
            border-radius: var(--radius-card);
            background: var(--panel);
            border: 1px solid var(--line);
            overflow: hidden;
            min-height: 400px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow);
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .showcase-main:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(201, 247, 58, 0.2);
        }

        .showcase-main img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .showcase-main .show-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 18, 32, 0.92), rgba(11, 18, 32, 0.35) 55%, rgba(11, 18, 32, 0.1));
        }

        .show-content {
            position: relative;
            z-index: 2;
            padding: 32px;
        }

        .show-tag {
            display: inline-block;
            padding: 4px 10px;
            background: rgba(201, 247, 58, 0.2);
            border: 1px solid rgba(201, 247, 58, 0.18);
            color: var(--brand);
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .show-content h2,
        .show-content h3 {
            font-size: clamp(24px, 3vw, 32px);
            line-height: 1.3;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .show-content p {
            color: rgba(225, 232, 244, 0.82);
            font-size: 15px;
            line-height: 1.75;
        }

        .showcase-side {
            display: flex;
            flex-direction: column;
            gap: 28px;
            min-height: 400px;
        }

        .showcase-card {
            flex: 1;
            background: var(--panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: background .3s ease, border-color .3s ease, transform .3s ease, box-shadow .3s ease;
            box-shadow: var(--shadow);
        }

        .showcase-card:hover {
            border-color: rgba(58, 215, 192, 0.3);
            background: rgba(58, 215, 192, 0.03);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .showcase-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .showcase-card .learn-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--aqua);
            font-size: 14px;
            font-weight: 600;
            margin-top: 18px;
            border-bottom: 1px solid transparent;
            transition: border-color .2s ease;
        }

        .showcase-card .learn-link:hover {
            border-bottom-color: var(--aqua);
        }

        .showcase-card .learn-link svg {
            width: 14px;
            height: 14px;
        }

        .operate-description {
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 26px;
            margin-bottom: 32px;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
        }

        .section-blueprint {
            padding: 0 32px clamp(64px, 8vw, 112px);
        }

        .blueprint-inner {
            max-width: var(--container);
            margin: 0 auto;
        }

        .blueprint-head {
            max-width: 620px;
            margin-bottom: 44px;
        }

        .blueprint-head h2 {
            font-size: clamp(28px, 3.6vw, 44px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.4px;
            margin-bottom: 14px;
        }

        .blueprint-head p {
            color: var(--muted);
            font-size: 16px;
            line-height: 1.8;
        }

        .step-grid {
            display: flex;
            flex-direction: column;
            gap: 0;
            max-width: 900px;
        }

        .step-row {
            display: grid;
            grid-template-columns: 58px 1fr 2fr;
            align-items: flex-start;
            padding: 26px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
            transition: background .2s ease;
        }

        .step-row:hover {
            background: rgba(255, 255, 255, 0.018);
        }

        .step-row:hover .step-icon {
            border-color: rgba(201, 247, 58, 0.6);
        }

        .step-icon {
            color: var(--brand);
            font-weight: 800;
            font-size: 18px;
            display: inline-flex;
            width: 38px;
            height: 38px;
            border: 1px solid rgba(201, 247, 58, 0.3);
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            transition: border-color .2s ease;
        }

        .step-title {
            font-weight: 700;
            font-size: 18px;
            color: var(--text);
        }

        .step-desc {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
        }

        .scene-section {
            background: linear-gradient(180deg, rgba(11, 18, 32, 1) 0%, rgba(15, 24, 40, 0.9) 100%);
            padding: clamp(56px, 7vw, 96px) 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .scene-inner {
            max-width: var(--container);
            margin: 0 auto;
        }

        .scene-section h2 {
            font-size: clamp(28px, 3.4vw, 44px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 10px;
            letter-spacing: -0.4px;
        }

        .section-lead-description {
            max-width: 720px;
            color: var(--muted);
            font-size: 16px;
            margin-bottom: 48px;
        }

        .scene-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .scene-card {
            background: var(--panel);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 32px;
            display: flex;
            flex-direction: column;
            position: relative;
            transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
        }

        .scene-card:hover {
            border-color: rgba(201, 247, 58, 0.25);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .scene-card::before {
            content: '';
            display: block;
            width: 28px;
            height: 3px;
            background: var(--brand);
            border-radius: 2px;
            margin-bottom: 20px;
        }

        .scene-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .scene-card p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.75;
            flex-grow: 1;
            margin-bottom: 12px;
        }

        .scene-tagline {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--aqua);
            background: rgba(58, 215, 192, 0.1);
            padding: 4px 12px;
            border-radius: 20px;
            align-self: flex-start;
        }

        .metric-section {
            padding: clamp(56px, 7vw, 96px) 32px 40px;
        }

        .metric-inner {
            max-width: var(--container);
            margin: 0 auto;
        }

        .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding-bottom: 56px;
        }

        .metric-item {
            text-align: left;
        }

        .metric-item .num {
            font-size: clamp(38px, 4vw, 56px);
            line-height: 1.2;
            font-weight: 800;
            color: var(--brand);
            font-variant-numeric: tabular-nums;
            letter-spacing: -1px;
        }

        .metric-item .unit {
            font-size: 22px;
            font-weight: 700;
            color: var(--brand);
            margin-left: 4px;
        }

        .metric-item .desc {
            color: var(--muted);
            font-size: 14px;
            margin-top: 8px;
            line-height: 1.6;
            padding-bottom: 12px;
            position: relative;
            max-width: 230px;
        }

        .metric-item .desc::after {
            content: '';
            display: block;
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }

        .module-title-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 32px;
            margin-bottom: 44px;
        }

        .module-title-row h2 {
            font-size: clamp(26px, 3vw, 38px);
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -0.4px;
            max-width: 560px;
        }

        .module-title-row .left-col {}

        .module-title-row .link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--aqua);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            border-bottom: 1px solid rgba(58, 215, 192, 0.4);
            padding-bottom: 2px;
            transition: border-color .2s ease;
        }

        .module-title-row .link-more:hover {
            border-bottom-color: var(--aqua);
        }

        .operate-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .operate-row {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 20px;
            padding: 24px 0 24px 16px;
            border-left: 2px solid transparent;
            transition: border-color .2s ease, background .2s ease;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .operate-row:hover {
            border-left-color: var(--brand);
            background: rgba(255, 255, 255, 0.02);
        }

        .operate-row:hover .index {
            color: var(--brand);
        }

        .operate-row .index {
            font-size: 14px;
            font-weight: 700;
            color: var(--muted);
            font-variant-numeric: tabular-nums;
            transition: color .2s ease;
        }

        .operate-row .op-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }

        .operate-row .op-body p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.75;
        }

        .highlight-quote {
            max-width: var(--container);
            margin: 0 auto;
            padding: clamp(48px, 6vw, 64px) 32px 0;
        }

        .quote-inner {
            max-width: 960px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 24px;
            background: rgba(255, 255, 255, 0.03);
            border-left: 3px solid var(--aqua);
            padding: 36px 40px;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
        }

        .quote-inner p {
            font-size: clamp(18px, 2.4vw, 24px);
            line-height: 1.65;
            font-weight: 600;
            color: var(--text);
        }

        .quote-src {
            font-size: 14px;
            color: var(--muted);
        }

        .quote-src strong {
            color: var(--aqua);
        }

        .faq-section {
            padding: clamp(56px, 7vw, 96px) 32px;
        }

        .faq-inner {
            max-width: var(--container);
            margin: 0 auto;
        }

        .faq-inner h2 {
            font-size: clamp(26px, 3vw, 38px);
            font-weight: 800;
            margin-bottom: 8px;
            letter-spacing: -0.4px;
        }

        .faq-inner .lead-note {
            color: var(--muted);
            margin-bottom: 40px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 860px;
        }

        .faq-item {
            border-radius: var(--radius-card);
            transition: border-color .25s ease, box-shadow .2s ease;
        }

        .faq-item .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: transparent;
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            transition: border-color .2s ease, background .2s ease;
            text-align: left;
            width: 100%;
            line-height: 1.5;
        }

        .faq-item .faq-q:hover {
            border-color: rgba(58, 215, 192, 0.45);
        }

        .faq-ic {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--muted);
            color: var(--muted);
            font-size: 18px;
            font-weight: 400;
            transition: transform .25s ease, border-color .25s ease, color .25s ease;
        }

        .faq-item.active .faq-ic {
            transform: rotate(45deg);
            border-color: var(--brand);
            color: var(--brand);
        }

        .faq-item .faq-a {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease, padding .3s ease;
            color: var(--muted);
            line-height: 1.8;
            font-size: 15px;
        }

        .faq-item.active .faq-a {
            padding-top: 18px;
            padding-bottom: 24px;
            max-height: 500px;
        }

        .faq-item .faq-a a {
            color: var(--aqua);
        }

        .faq-cta-link {
            margin-top: 28px;
            font-size: 14px;
            color: var(--muted);
        }

        .faq-cta-link a {
            color: var(--aqua);
            font-weight: 600;
        }

        .cta-section {
            padding: 0 32px clamp(64px, 8vw, 96px);
        }

        .cta-inner {
            max-width: var(--container);
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            position: relative;
            border-radius: var(--radius-card);
            padding: clamp(48px, 6vw, 72px);
            overflow: hidden;
        }

        .cta-inner::before {
            content: "";
            position: absolute;
            top: -180px;
            right: -120px;
            width: 440px;
            height: 440px;
            background: rgba(201, 247, 58, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner::after {
            content: "";
            position: absolute;
            bottom: -120px;
            left: -80px;
            width: 320px;
            height: 320px;
            background: rgba(58, 215, 192, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            max-width: 840px;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .cta-content h2 {
            font-size: clamp(28px, 3vw, 44px);
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--text);
        }

        .cta-content p {
            color: var(--muted);
            font-size: 16px;
            max-width: 680px;
            line-height: 1.8;
        }

        .cta-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 20px;
        }

        .cta-privacy-note {
            font-size: 12px;
            color: rgba(225, 232, 244, 0.45);
            opacity: 0.9;
            max-width: 400px;
            line-height: 1.6;
        }

        .contact-link {
            color: var(--aqua);
            font-size: 15px;
            font-weight: 600;
            border-bottom: 1px solid rgba(58, 215, 192, 0.4);
            padding-bottom: 2px;
            transition: border-color .2s ease;
        }

        .contact-link:hover {
            border-bottom-color: var(--aqua);
        }

        .site-footer {
            background: rgba(8, 14, 26, 0.98);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 56px 32px 24px;
        }

        .footer-inner {
            max-width: var(--container);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 44px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 14px;
        }

        .footer-brand-text {
            letter-spacing: -0.2px;
        }

        .footer-about {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.75;
            max-width: 380px;
        }

        .footer-group h4 {
            color: var(--text);
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .footer-group ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-group a {
            color: var(--muted);
            font-size: 14px;
            transition: color .2s ease;
        }

        .footer-group a:hover {
            color: var(--brand);
        }

        .footer-bottom {
            max-width: var(--container);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(225, 232, 244, 0.42);
        }

        .footer-bottom-links {
            display: flex;
            gap: 24px;
        }

        .footer-bottom-links a {
            color: rgba(225, 232, 244, 0.42);
            transition: color .2s ease;
        }

        .footer-bottom-links a:hover {
            color: var(--text);
        }

        .modal-wrap {
            position: fixed;
            inset: 0;
            z-index: 300;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            opacity: 0;
            visibility: hidden;
            transition: opacity .25s ease, visibility .25s ease;
            background: rgba(4, 8, 16, 0.72);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            overflow-y: auto;
        }

        .modal-wrap.active {
            opacity: 1;
            visibility: visible;
        }

        .modal-panel {
            position: relative;
            width: 540px;
            max-width: 100%;
            background: #101A2B;
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-modal);
            box-shadow: 0 30px 90px rgba(0, 0, 0, 0.6);
            padding: 42px 44px 34px;
            transition: transform .25s ease, opacity .2s ease;
            max-height: 90vh;
            overflow-y: auto;
        }

        .modal-wrap:not(.active) .modal-panel {
            transform: translateY(12px);
            opacity: 0.5;
        }

        .modal-close {
            position: absolute;
            top: 14px;
            right: 14px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--muted);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background .2s ease, color .2s ease, border-color .2s ease;
        }

        .modal-close:hover {
            background: rgba(201, 247, 58, 0.1);
            color: var(--brand);
            border-color: rgba(201, 247, 58, 0.3);
        }

        .modal-icon {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(201, 247, 58, 0.12);
            border-radius: 12px;
            color: var(--brand);
            margin-bottom: 18px;
        }

        .modal-icon svg {
            width: 22px;
            height: 22px;
        }

        .modal-panel h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.3;
        }

        .modal-sub {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--muted);
            margin-bottom: 6px;
            letter-spacing: 0.2px;
        }

        .form-group label .opt {
            color: rgba(225, 232, 244, 0.35);
            font-weight: 500;
            margin-left: 4px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 12px 14px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            color: var(--text);
            font-size: 15px;
            font-family: inherit;
            transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
            appearance: none;
            -webkit-appearance: none;
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--aqua);
            box-shadow: 0 0 0 3px rgba(58, 215, 192, 0.14);
            background: rgba(58, 215, 192, 0.04);
        }

        .form-group select {
            cursor: pointer;
        }

        .form-group-direction {
            margin-bottom: 18px;
        }

        .form-direction-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--muted);
            margin-bottom: 10px;
            display: block;
        }

        .option-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .option-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 12px;
        }

        .option-item input {
            appearance: none;
            -webkit-appearance: none;
            width: 18px;
            height: 18px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 4px;
            position: relative;
            cursor: pointer;
            transition: background .2s ease, border-color .2s ease;
            background: transparent;
            flex-shrink: 0;
        }

        .option-item input:checked {
            background: var(--aqua);
            border-color: var(--aqua);
        }

        .option-item input:checked::after {
            content: '';
            position: absolute;
            top: 4px;
            left: 4px;
            width: 6px;
            height: 6px;
            background: #0B1220;
            border-radius: 1px;
        }

        .option-item label {
            font-size: 14px;
            color: var(--text);
            cursor: pointer;
        }

        .form-submit {
            width: 100%;
            margin-top: 12px;
        }

        .form-privacy {
            font-size: 12px;
            color: rgba(225, 232, 244, 0.45);
            text-align: center;
            margin-top: 14px;
            line-height: 1.6;
        }

        .form-success-tip {
            display: none;
            margin-top: 12px;
            padding: 12px;
            border-radius: 8px;
            background: rgba(58, 215, 192, 0.1);
            border: 1px solid rgba(58, 215, 192, 0.25);
            color: var(--aqua);
            font-size: 14px;
            text-align: center;
        }

        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            margin: -1px;
            padding: 0;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        .back-top-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--muted);
            font-size: 14px;
            opacity: 0.8;
            transition: opacity .2s ease;
        }

        .back-top-link:hover {
            color: var(--text);
            opacity: 1;
        }

        .side-cta-strip {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 0 clamp(48px, 6vw, 80px);
        }

        .side-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
        }

        .side-cta-copy {
            display: flex;
            flex-direction: column;
            gap: 8px;
            max-width: 700px;
        }

        .side-cta-copy span {
            color: var(--brand);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.6px;
        }

        .side-cta-copy h3 {
            font-size: clamp(22px, 3.2vw, 34px);
            font-weight: 800;
            line-height: 1.3;
        }

        .side-cta-copy p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.7;
        }

        .side-cta-copy .btn {
            margin-top: 12px;
        }

        .cta-more {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }

        @media (max-width: 1024px) {
            .header-inner {
                padding: 0 24px;
            }

            .main-nav {
                display: none;
            }

            .desktop-mode {
                display: none;
            }

            .header-burger {
                display: inline-flex;
            }

            .showcase-inner {
                grid-template-columns: 1fr;
            }

            .showcase-side {
                flex-direction: row;
                min-height: auto;
            }

            .showcase-card {
                flex: 1;
            }

            .metric-grid {
                grid-template-columns: 2fr 2fr;
                row-gap: 40px;
                column-gap: 28px;
            }

            .footer-inner {
                grid-template-columns: 1.2fr 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 768px) {
            body {
                font-size: 16px;
                line-height: 1.8;
            }

            .header-inner {
                height: 64px;
                padding: 0 20px;
            }

            .category-hero {
                padding: 44px 20px 36px;
            }

            .category-hero h1 {
                font-size: 30px;
                line-height: 1.25;
                letter-spacing: -0.5px;
            }

            .category-hero .hero-inner {
                gap: 16px;
            }

            .hero-desc {
                font-size: 16px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .scroll-indicator {
                align-self: center;
                justify-content: center;
                margin-top: 6px;
            }

            .point-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .point-box {
                justify-content: flex-start;
                padding: 12px 16px;
            }

            .hero-visual {
                min-height: 220px;
            }

            .hero-visual .visual-desc {
                padding: 20px;
                font-size: 13px;
            }

            .section {
                padding: 56px 20px 40px;
            }

            .visual-showcase {
                padding: 0 20px 48px;
            }

            .showcase-main {
                min-height: 280px;
            }

            .showcase-side {
                flex-direction: column;
                gap: 16px;
            }

            .scene-grid {
                grid-template-columns: 1fr;
            }

            .scene-card {
                padding: 24px;
            }

            .metric-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
                row-gap: 36px;
            }

            .metric-item .num {
                font-size: 36px;
            }

            .metric-item .desc {
                font-size: 13px;
            }

            .module-title-row {
                flex-direction: column;
                gap: 16px;
                align-items: flex-start;
            }

            .step-row {
                grid-template-columns: 44px 1fr;
                row-gap: 8px;
                padding: 22px 0;
            }

            .step-desc {
                grid-column: 1 / -1;
                padding-left: 0;
            }

            .operate-row {
                grid-template-columns: 1fr;
                gap: 6px;
                padding: 20px 12px 20px 14px;
            }

            .operate-row .index {
                font-size: 12px;
            }

            .blueprint-inner {
                padding: 0;
            }

            .gt-example {
                padding: 0 20px;
            }

            .quote-inner {
                padding: 24px;
            }

            .faq-section {
                padding: 56px 20px;
            }

            .faq-list {
                gap: 10px;
                width: 100%;
            }

            .faq-item {
                width: 100%;
            }

            .faq-item .faq-q {
                padding: 16px;
                font-size: 15px;
            }

            .faq-item.active .faq-a {
                padding: 0 16px 20px;
            }

            .faq-item .faq-a {
                padding: 0 16px;
            }

            .cta-section {
                padding: 0 20px 48px;
            }

            .cta-inner {
                padding: 28px 24px;
            }

            .cta-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .cta-content h2 {
                font-size: 24px;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                align-items: flex-start;
                justify-content: center;
                flex-wrap: wrap;
            }

            .footer-bottom-links {
                flex-wrap: wrap;
                gap: 12px;
            }

            .footer {
                padding: 40px 20px 20px;
            }

            .modal-panel {
                padding: 22px 20px 24px;
            }

            .opt-grid {
                flex-direction: column;
            }

            .option-grid {
                flex-direction: column;
                gap: 4px;
            }

            .side-cta-inner {
                flex-direction: column;
                gap: 20px;
                align-items: stretch;
            }

            .side-cta-copy .btn {
                align-self: center;
                width: 100%;
                justify-content: center;
            }

            .cta-more {
                flex-direction: column;
                gap: 12px;
                align-items: stretch;
            }
        }

        @media (max-width: 520px) {
            .metric-grid {
                grid-template-columns: 1fr;
            }

            .metric-item .num {
                font-size: 40px;
            }

            .scene-card {
                padding: 20px;
            }
        }

/* roulang page: category2 */
:root {
            --bg: #0B1220;
            --bg-soft: #0E1626;
            --panel: rgba(255, 255, 255, 0.045);
            --panel-mid: rgba(255, 255, 255, 0.068);
            --panel-strong: rgba(17, 25, 40, 0.72);
            --line: rgba(255, 255, 255, 0.08);
            --line-strong: rgba(201, 247, 58, 0.4);
            --text: #EAF0FA;
            --muted: rgba(225, 232, 244, 0.62);
            --brand: #C9F73A;
            --aqua: #3AD7C0;
            --warn: #F0A35E;
            --sm: 4px;
            --radius: 8px;
            --radius-card: 14px;
            --radius-modal: 18px;
            --shadow: 0 14px 40px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 22px 60px rgba(0, 0, 0, 0.36);
            --container: 1200px;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --ease: all 0.22s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg);
            color: var(--text);
            font-family: var(--font);
            font-size: 17px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        .container {
            width: min(var(--container), 100% - 40px);
            margin: 0 auto;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            background: rgba(11, 18, 32, 0.62);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            transition: background 0.25s ease, border-color 0.25s ease;
        }

        .site-header.scrolled {
            background: rgba(9, 14, 26, 0.9);
            border-bottom-color: var(--line);
        }

        .header-inner {
            width: min(var(--container), 100% - 40px);
            margin: 0 auto;
            height: 82px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text);
            transition: var(--ease);
        }

        .logo:hover {
            color: #fff;
        }

        .logo-icon {
            display: inline-flex;
            color: var(--brand);
            width: 30px;
            height: 30px;
            flex: 0 0 30px;
        }

        .logo-icon svg {
            width: 100%;
            height: 100%;
        }

        .logo-text {
            display: inline-flex;
            align-items: baseline;
        }

        .logo-text .dot {
            color: var(--brand);
            font-weight: 700;
            margin-left: 4px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            font-size: 16px;
            color: rgba(225, 232, 244, 0.68);
            transition: color 0.2s ease;
        }

        .main-nav a:hover {
            color: var(--text);
        }

        .main-nav a.active {
            color: #fff;
            position: relative;
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -10px;
            height: 2px;
            border-radius: 2px;
            background: var(--brand);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius);
            cursor: pointer;
            border: 1px solid transparent;
            font-weight: 600;
            transition: var(--ease);
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--brand);
            color: #0b1220;
            padding: 12px 24px;
            font-size: 16px;
            box-shadow: 0 0 0 4px rgba(201, 247, 58, 0.06), 0 10px 30px rgba(201, 247, 58, 0.22);
        }

        .btn-primary:hover {
            background: #d8ff5c;
            box-shadow: 0 0 0 5px rgba(201, 247, 58, 0.1), 0 12px 34px rgba(201, 247, 58, 0.32);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 0 0 4px rgba(201, 247, 58, 0.04), 0 6px 18px rgba(201, 247, 58, 0.18);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--text);
            outline-offset: 3px;
        }

        .btn-outline {
            border: 1px solid rgba(255, 255, 255, 0.18);
            background: rgba(255, 255, 255, 0.03);
            color: var(--text);
            padding: 12px 24px;
            font-size: 16px;
        }

        .btn-outline:hover {
            border-color: rgba(201, 247, 58, 0.5);
            color: var(--brand);
            background: rgba(201, 247, 58, 0.06);
        }

        .btn-outline:focus-visible {
            outline: 2px solid var(--aqua);
            outline-offset: 3px;
        }

        .btn-small {
            padding: 9px 18px;
            font-size: 15px;
        }

        .header-burger {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            color: var(--text);
            cursor: pointer;
            transition: var(--ease);
        }

        .header-burger:hover {
            color: var(--brand);
            border-color: rgba(201, 247, 58, 0.45);
        }

        .header-burger svg {
            width: 23px;
            height: 23px;
        }

        .page-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            padding: 188px 0 72px;
            isolation: isolate;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(110deg, rgba(11, 18, 32, 0.96), rgba(11, 18, 32, 0.72) 46%, rgba(13, 20, 34, 0.55) 100%);
            z-index: -2;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            top: -80px;
            left: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(41, 91, 164, 0.2), transparent 68%);
            z-index: -1;
        }

        .hero-inner {
            width: min(var(--container), 100% - 40px);
            margin: 0 auto;
        }

        .hero-crumb {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 14px;
            color: rgba(225, 232, 244, 0.5);
            margin-bottom: 22px;
        }

        .hero-crumb a {
            transition: var(--ease);
        }

        .hero-crumb a:hover {
            color: var(--aqua);
        }

        .hero-crumb span {
            color: rgba(225, 232, 244, 0.34);
        }

        .hero-crumb strong {
            color: rgba(225, 232, 244, 0.7);
            font-weight: 500;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            letter-spacing: 0.04em;
            color: var(--brand);
            background: rgba(201, 247, 58, 0.09);
            border: 1px solid rgba(201, 247, 58, 0.18);
            padding: 6px 12px;
            border-radius: 999px;
            margin-bottom: 24px;
        }

        .page-hero h1 {
            font-size: clamp(42px, 6vw, 68px);
            font-weight: 800;
            line-height: 1.15;
            color: #fff;
            max-width: 800px;
            letter-spacing: -0.02em;
        }

        .page-hero h1 .hero-mark {
            color: var(--brand);
        }

        .page-hero .hero-sub {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(225, 232, 244, 0.8);
            max-width: 720px;
            margin-top: 22px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .section {
            padding: clamp(64px, 8vw, 110px) 0;
        }

        .section-line {
            background: linear-gradient(to bottom, rgba(11, 18, 32, 1), rgba(15, 21, 37, 0.92));
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

        .toc-layout {
            display: grid;
            grid-template-columns: 320px minmax(0, 1fr);
            gap: clamp(50px, 6vw, 80px);
            align-items: start;
        }

        .toc-col {
            position: sticky;
            top: 120px;
            border: 1px solid var(--line);
            background: var(--panel-strong);
            border-radius: var(--radius-card);
            padding: 34px 30px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .toc-col .toc-note {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--aqua);
            background: rgba(58, 215, 192, 0.08);
            border-radius: 999px;
            padding: 4px 10px;
            margin-bottom: 20px;
        }

        .toc-col h2 {
            font-size: 24px;
            line-height: 1.4;
            color: #fff;
            margin-bottom: 6px;
        }

        .toc-col .toc-desc {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin: 14px 0 24px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--line);
        }

        .toc-list {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .toc-list a {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 13px 14px;
            border-radius: var(--radius);
            font-size: 15px;
            color: rgba(225, 232, 244, 0.75);
            border: 1px solid transparent;
            transition: var(--ease);
        }

        .toc-list a:hover,
        .toc-list a.active {
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--line);
            color: #fff;
        }

        .toc-list a:hover .num,
        .toc-list a.active .num {
            color: var(--brand);
            border-color: rgba(201, 247, 58, 0.35);
        }

        .toc-list .num {
            flex: 0 0 30px;
            width: 30px;
            height: 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--sm);
            font-size: 13px;
            transition: var(--ease);
            color: rgba(225, 232, 244, 0.6);
            font-weight: 600;
        }

        .content-col {
            max-width: 100%;
        }

        .feature-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            margin-bottom: 44px;
            border: 1px solid var(--line);
            background: #111a2c;
            box-shadow: var(--shadow);
            position: relative;
        }

        .feature-img img {
            width: 100%;
            min-height: 260px;
            object-fit: cover;
        }

        .feature-caption {
            position: absolute;
            left: 14px;
            bottom: 14px;
            background: rgba(11, 18, 32, 0.84);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 10px 15px;
            border-radius: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.82);
            max-width: 80%;
        }

        .content-main .content-block {
            padding: 38px 0 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .content-block:last-child {
            border-bottom: none;
        }

        .content-block .block-index {
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--brand);
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }

        .content-block .block-index::before {
            content: "";
            width: 24px;
            height: 2px;
            background: var(--brand);
        }

        .content-block h3 {
            font-size: 27px;
            line-height: 1.45;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }

        .content-block p {
            color: var(--muted);
            margin-bottom: 18px;
            font-size: 17px;
            line-height: 1.9;
        }

        .content-block p strong {
            color: var(--text);
            font-weight: 600;
        }

        .inline-note {
            background: var(--panel);
            border-left: 3px solid var(--aqua);
            padding: 18px 22px;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-size: 16px !important;
            color: rgba(225, 232, 244, 0.8) !important;
            margin-top: 24px;
        }

        .platform-fields {
            margin-top: 36px;
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
        }

        .platform-field {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 20px 22px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            background: rgba(255, 255, 255, 0.018);
        }

        .platform-field:last-child {
            border-bottom: none;
        }

        .platform-field i {
            flex: 0 0 18px;
            color: var(--brand);
            font-style: normal;
            margin-top: 8px;
        }

        .platform-field b {
            display: block;
            font-size: 16px;
            color: #f4f7fc;
            margin-bottom: 8px;
            font-weight: 600;
        }

        .platform-field span {
            font-size: 15px;
            line-height: 1.75;
            color: rgba(225, 232, 244, 0.64);
        }

        .quote-zone {
            background:
                radial-gradient(circle at 12% 0%, rgba(201, 247, 58, 0.05), transparent 28%),
                linear-gradient(115deg, rgba(17, 25, 30, 0.85), rgba(15, 23, 34, 0.94));
            border: 1px solid var(--line);
            border-left: 4px solid var(--brand);
            padding: 58px 54px 56px;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            position: relative;
            margin-top: 60px;
        }

        .quote-zone::before {
            content: "“";
            position: absolute;
            left: 24px;
            top: 6px;
            font-size: 110px;
            line-height: 1;
            color: rgba(201, 247, 58, 0.18);
            font-weight: 800;
            font-style: normal;
        }

        .quote-zone blockquote {
            max-width: 900px;
        }

        .quote-zone blockquote p {
            font-size: 22px;
            line-height: 1.75;
            font-weight: 500;
            color: rgba(240, 246, 253, 0.9);
            margin-bottom: 24px;
        }

        .quote-zone .quote-source {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(225, 232, 244, 0.55);
        }

        .quote-zone .quote-source b {
            color: var(--brand);
            font-weight: 600;
        }

        .process-strip {
            display: flex;
            justify-content: space-between;
            gap: 24px;
            padding: 26px 0;
            border-bottom: 1px solid var(--line);
            margin-bottom: 42px;
            flex-wrap: wrap;
        }

        .process-strip .step {
            display: flex;
            flex: 1;
            align-items: center;
            gap: 16px;
            justify-content: center;
            background: rgba(255, 255, 255, 0.02);
        }

        .process-strip .step-icon {
            flex: 0 0 38px;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(201, 247, 58, 0.1);
            border: 1px solid rgba(201, 247, 58, 0.2);
            color: var(--brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }

        .process-strip .step-name {
            font-weight: 600;
            font-size: 16px;
            color: rgba(240, 246, 253, 0.8);
        }

        .process-strip .step-arrow {
            color: rgba(255, 255, 255, 0.3);
            font-size: 19px;
            flex: 0 0 20px;
            text-align: center;
        }

        .category-cta {
            padding: 100px 0 110px;
            background:
                radial-gradient(circle at 80% 20%, rgba(201, 247, 58, 0.05), transparent 24%),
                rgba(9, 13, 22, 0.5);
        }

        .collab-wrap {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            border: 1px solid var(--line);
            background: var(--panel-strong);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: var(--radius-modal);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .collab-info {
            padding: 50px 52px 42px;
        }

        .collab-info h2 {
            font-size: clamp(26px, 3vw, 38px);
            line-height: 1.3;
            font-weight: 700;
            color: #f7fafd;
            max-width: 520px;
        }

        .collab-info p {
            margin-top: 18px;
            color: var(--muted);
            font-size: 16px;
            line-height: 1.85;
            max-width: 440px;
        }

        .collab-aside { 
            position: relative;
            padding: 48px 38px 46px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 16px;
            background:
                linear-gradient(rgba(11, 18, 32, 0.94), rgba(11, 18, 32, 0.94)),
                url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
        }

        .collab-aside .collab-tag {
            font-size: 13px;
            color: var(--aqua);
            border: 1px solid rgba(58, 215, 192, 0.2);
            background: rgba(58, 215, 192, 0.06);
            width: fit-content;
            padding: 3px 9px;
            border-radius: var(--sm);
        }

        .collab-aside p {
            font-size: 15px;
            color: rgba(225, 232, 244, 0.66);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .cta-privacy-note {
            margin-top: 16px;
            font-size: 12px;
            letter-spacing: 0.02em;
            color: rgba(225, 232, 244, 0.45);
        }

        .site-footer {
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            background: rgba(7, 11, 19, 0.8);
        }

        .footer-inner {
            width: min(var(--container), 100% - 40px);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 46px;
            padding: 72px 0 56px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 22px;
            color: #fff;
        }

        .footer-brand-text {
            font-weight: 800;
            color: var(--text);
        }

        .footer-about {
            margin-top: 18px;
            font-size: 15px;
            color: rgba(225, 232, 244, 0.52);
            max-width: 340px;
            line-height: 1.8;
        }

        .footer-group h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }

        .footer-group ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-group a {
            font-size: 15px;
            color: rgba(225, 232, 244, 0.6);
            transition: var(--ease);
        }

        .footer-group a:hover {
            color: var(--brand);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 24px 0;
            width: min(var(--container), 100% - 40px);
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            color: rgba(225, 232, 244, 0.38);
            font-size: 13px;
        }

        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }

        .footer-bottom-links a {
            color: rgba(225, 232, 244, 0.4);
            transition: var(--ease);
        }

        .footer-bottom-links a:hover {
            color: var(--aqua);
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: min(500px, 100%);
            height: 100vh;
            background: #0e1524;
            z-index: 200;
            padding: 28px 24px 36px;
            overflow-y: auto;
            transition: right 0.3s ease;
            border-left: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-drawer.open {
            right: 0;
        }

        .drawer-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .drawer-head .drawer-close {
            width: 42px;
            height: 42px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius);
            border: 1px solid var(--line);
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--ease);
        }

        .drawer-head .drawer-close:hover {
            color: var(--brand);
            border-color: rgba(201, 247, 58, 0.4);
        }

        .drawer-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .drawer-links a {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid transparent;
            padding: 14px 16px;
            border-radius: 10px;
            font-size: 16px;
            color: rgba(225, 232, 244, 0.76);
            transition: var(--ease);
        }

        .drawer-links a:hover,
        .drawer-links a.active {
            border-color: var(--line);
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
        }

        .drawer-links a.active {
            border-left-color: var(--brand);
        }

        .drawer-cta {
            margin-top: 28px;
            display: grid;
            gap: 12px;
        }

        .drawer-note {
            margin-top: 20px;
            color: rgba(225, 232, 244, 0.35);
            font-size: 12px;
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(5, 9, 15, 0.8);
            backdrop-filter: blur(3px);
            z-index: 150;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.25s ease, visibility 0.25s;
        }

        .drawer-overlay.open {
            opacity: 1;
            visibility: visible;
        }

        .modal-backdrop {
            position: fixed;
            inset: 0;
            z-index: 300;
            background: rgba(4, 7, 13, 0.76);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.25s ease, visibility 0.25s;
            padding: 20px;
        }

        .modal-backdrop.open {
            opacity: 1;
            visibility: visible;
        }

        .modal-panel {
            width: min(520px, 100%);
            background: rgba(13, 20, 32, 0.96);
            box-shadow: 0 30px 90px rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-modal);
            padding: 36px 36px 28px;
            max-height: min(620px, 88vh);
            overflow-y: auto;
            position: relative;
        }

        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 42px;
            height: 42px;
            border-radius: var(--radius);
            border: 1px solid var(--line);
            background: rgba(255, 255, 255, 0.03);
            color: var(--muted);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--ease);
        }

        .modal-close:hover {
            color: #fff;
            border-color: rgba(255, 255, 255, 0.25);
        }

        .modal-close svg {
            width: 20px;
            height: 20px;
        }

        .modal-title {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 6px;
        }

        .modal-subtitle {
            color: var(--muted);
            font-size: 14px;
            margin-bottom: 26px;
            line-height: 1.7;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-size: 14px;
            color: rgba(225, 232, 244, 0.78);
        }

        .form-control {
            width: 100%;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            color: var(--text);
            padding: 12px 14px;
            transition: var(--ease);
            line-height: 1.5;
        }

        .form-control:focus {
            border-color: rgba(58, 215, 192, 0.55);
            box-shadow: 0 0 0 3px rgba(58, 215, 192, 0.1);
            background: rgba(255, 255, 255, 0.06);
        }

        .form-control::placeholder {
            color: rgba(225, 232, 244, 0.35);
        }

        select.form-control {
            appearance: auto;
            -webkit-appearance: auto;
        }

        .form-submit {
            margin-top: 20px;
            width: 100%;
            padding: 15px;
            font-size: 16px;
        }

        .form-privacy {
            margin-top: 14px;
            color: rgba(225, 232, 244, 0.35);
            font-size: 11px;
            text-align: center;
            line-height: 1.7;
        }

        .modal-success {
            text-align: center;
            padding: 40px 0;
            display: none;
        }

        .modal-success i {
            display: inline-flex;
            width: 64px;
            height: 64px;
            border-radius: 999px;
            background: rgba(201, 247, 58, 0.1);
            border: 1px solid rgba(201, 247, 58, 0.4);
            color: var(--brand);
            font-size: 32px;
            align-items: center;
            justify-content: center;
            font-style: normal;
            margin-bottom: 20px;
        }

        .modal-success h3 {
            font-size: 21px;
            margin-bottom: 10px;
            color: #fff;
        }

        .modal-success p {
            font-size: 14px;
            color: var(--muted);
        }

        .modal-body.success .form-shell {
            display: none;
        }

        .modal-body.success .modal-success {
            display: block;
        }

        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }

            .header-cta .desktop-mode {
                display: none;
            }

            .header-burger {
                display: inline-flex;
            }

            .header-inner {
                height: 70px;
            }

            .page-hero {
                padding: 160px 0 64px;
            }

            .toc-layout {
                display: block;
            }

            .toc-col {
                position: relative;
                top: auto;
                margin-bottom: 36px;
            }

            .process-strip {
                flex-direction: column;
            }

            .process-strip .step {
                justify-content: flex-start;
                border-left: 2px solid rgba(201, 247, 58, 0.3);
                padding-left: 18px;
            }

            .process-strip .step-arrow {
                display: none;
            }

            .collab-wrap {
                grid-template-columns: 1fr;
            }

            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 728px) {
            .container,
            .header-inner,
            .hero-inner,
            .footer-inner,
            .footer-bottom {
                width: min(100% - 28px, var(--container));
            }

            body {
                font-size: 16px;
            }

            .btn {
                min-height: 44px;
            }

            .logo-text {
                font-size: 20px;
            }

            .logo-icon {
                width: 26px;
                height: 26px;
                flex-basis: 26px;
            }

            .page-hero {
                padding: 142px 0 52px;
            }

            .page-hero h1 {
                font-size: clamp(34px, 8.5vw, 46px);
            }

            .page-hero .hero-sub {
                font-size: 16px;
                line-height: 1.7;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn {
                width: 100%;
            }

            .quote-zone {
                padding: 44px 26px 40px;
            }

            .quote-zone blockquote p {
                font-size: 19px;
            }

            .content-block h3 {
                font-size: 22px;
            }

            .category-cta {
                padding: 70px 0 80px;
            }

            .collab-info,
            .collab-aside {
                padding: 30px 28px;
            }

            .modal-panel {
                padding: 28px 18px 22px;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 52px 0 36px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
                gap: 8px;
            }
        }

/* roulang page: category4 */
:root {
            --bg: #0B1220;
            --bg-deep: #070D17;
            --panel: rgba(255, 255, 255, 0.045);
            --panel-strong: rgba(17, 25, 40, 0.68);
            --line: rgba(255, 255, 255, 0.08);
            --line-strong: rgba(255, 255, 255, 0.15);
            --text: #EAF0FA;
            --body: #C8D2E2;
            --muted: rgba(225, 232, 244, 0.62);
            --acid: #C9F73A;
            --acid-soft: rgba(201, 247, 58, 0.12);
            --aqua: #3AD7C0;
            --warn: #F0A35E;
            --r-sm: 4px;
            --r-md: 8px;
            --r-lg: 14px;
            --r-xl: 20px;
            --radius: 14px;
            --shadow: 0 14px 40px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 22px 60px rgba(0, 0, 0, 0.36);
            --space: 96px;
            --container: 1200px;
            --transition: all 0.22s ease;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg);
            color: var(--text);
            font-family: var(--font);
            font-size: 17px;
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

        ul, ol {
            list-style: none;
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            background: none;
            border: none;
            outline: none;
        }

        h1, h2, h3, h4 {
            line-height: 1.3;
            font-weight: 800;
            color: var(--text);
        }

        .container {
            width: min(var(--container), calc(100% - 48px));
            margin: 0 auto;
        }

        .section {
            padding: var(--space) 0;
            position: relative;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 22px;
            border-radius: var(--r-md);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.4;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            text-align: center;
        }

        .btn-primary {
            background: var(--acid);
            color: #111A0C;
            box-shadow: 0 0 0 4px rgba(199, 247, 58, 0.06), 0 10px 30px rgba(199, 247, 58, 0.2);
        }

        .btn-primary:hover {
            background: #d9ff66;
            box-shadow: 0 0 0 6px rgba(199, 247, 58, 0.1), 0 14px 38px rgba(199, 247, 58, 0.3);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 6px 18px rgba(199, 247, 58, 0.2);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--aqua);
            outline-offset: 3px;
        }

        .btn-ghost {
            border-color: rgba(255, 255, 255, 0.35);
            color: var(--text);
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(8px);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(201, 247, 58, 0.7);
            color: var(--acid);
        }

        .btn-ghost:focus-visible {
            outline: 2px solid var(--acid);
            outline-offset: 3px;
        }

        .btn-small {
            padding: 9px 17px;
            font-size: 15px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: var(--transition);
            background: rgba(11, 18, 32, 0.55);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid transparent;
        }

        .site-header.scrolled {
            background: rgba(8, 14, 26, 0.92);
            border-bottom-color: rgba(255, 255, 255, 0.06);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.22);
        }

        .header-inner {
            width: min(1280px, calc(100% - 48px));
            margin: 0 auto;
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .header-left {
            display: flex;
            align-items: center;
            flex: 0 0 auto;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.5px;
        }

        .logo-icon {
            display: inline-flex;
            color: var(--acid);
            width: 30px;
            height: 30px;
        }

        .logo-icon svg {
            width: 100%;
            height: 100%;
        }

        .logo-text .dot {
            color: var(--acid);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .main-nav a {
            position: relative;
            color: rgba(234, 240, 250, 0.76);
            font-size: 15.5px;
            font-weight: 500;
            padding: 6px 2px;
        }

        .main-nav a:hover {
            color: var(--text);
        }

        .main-nav a.active {
            color: var(--text);
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: var(--acid);
            box-shadow: 0 0 10px rgba(201, 247, 58, 0.3);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .header-burger {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            color: var(--text);
            border: 1px solid rgba(255, 255, 255, 0.12);
            cursor: pointer;
            transition: var(--transition);
        }

        .header-burger:hover {
            border-color: rgba(201, 247, 58, 0.55);
            background: rgba(201, 247, 58, 0.06);
        }

        .header-burger:focus-visible {
            outline: 2px solid var(--acid);
            outline-offset: 3px;
        }

        .header-burger svg {
            width: 22px;
            height: 22px;
        }

        .nav-mask {
            position: fixed;
            inset: 0;
            background: rgba(4, 8, 15, 0.7);
            backdrop-filter: blur(6px);
            opacity: 0;
            visibility: hidden;
            transition: 0.25s ease;
            z-index: 998;
        }

        .site-header.nav-open {
            background: rgba(8, 14, 26, 0.98);
        }

        .site-header.nav-open + .nav-mask {
            opacity: 1;
            visibility: visible;
        }

        .hero {
            position: relative;
            padding: 170px 0 90px;
            min-height: 560px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: -2;
        }

        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center;
        }

        .hero-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(7, 13, 23, 0.98) 0%, rgba(8, 15, 27, 0.88) 42%, rgba(11, 18, 32, 0.45) 100%);
        }

        .hero-bg::before {
            content: "";
            position: absolute;
            inset: 0;
            z-index: 1;
            background: radial-gradient(circle at 80% -10%, rgba(58, 215, 192, 0.11), transparent 28%), radial-gradient(circle at 3% 20%, rgba(201, 247, 58, 0.09), transparent 25%);
        }

        .hero-content {
            max-width: 780px;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            color: var(--acid);
            background: rgba(201, 247, 58, 0.08);
            border: 1px solid rgba(201, 247, 58, 0.2);
            padding: 5px 12px;
            border-radius: 30px;
            margin-bottom: 18px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .hero h1 {
            font-size: clamp(42px, 6vw, 66px);
            font-weight: 800;
            line-height: 1.16;
            letter-spacing: -1px;
        }

        .hero-text {
            margin-top: 18px;
            font-size: 18px;
            color: var(--muted);
            max-width: 680px;
            line-height: 1.9;
        }

        .hero-actions {
            margin-top: 30px;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .hero-scroll-tip {
            position: absolute;
            bottom: 32px;
            left: 50%;
            transform: translateX(-50%);
            color: rgba(234, 240, 250, 0.42);
            font-size: 12px;
            letter-spacing: 2px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-scroll-tip svg {
            width: 18px;
            height: 18px;
        }

        .problem-section {
            background: linear-gradient(180deg, var(--bg) 0%, #0E1728 100%);
        }

        .section-head {
            max-width: 860px;
            margin-bottom: 46px;
        }

        .section-tag {
            display: inline-block;
            font-size: 14px;
            font-weight: 700;
            color: var(--acid);
            letter-spacing: 1.5px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: clamp(28px, 3.4vw, 44px);
            line-height: 1.28;
        }

        .section-head p {
            margin-top: 14px;
            color: var(--muted);
            font-size: 17px;
        }

        .problem-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .problem-card {
            position: relative;
            background: var(--panel);
            border: 1px solid var(--line);
            border-radius: var(--r-lg);
            padding: 28px;
            transition: 0.25s ease;
            overflow: hidden;
        }

        .problem-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 32%;
            height: 1px;
            background: var(--acid);
            opacity: 0;
            transition: 0.3s ease;
        }

        .problem-card:hover {
            transform: translateY(-4px);
            border-color: rgba(201, 247, 58, 0.24);
            background: rgba(255, 255, 255, 0.06);
            box-shadow: var(--shadow-lg);
        }

        .problem-card:hover::before {
            opacity: 1;
        }

        .problem-index {
            display: inline-flex;
            font-size: 13px;
            font-weight: 700;
            color: var(--aqua);
            background: rgba(58, 215, 192, 0.1);
            border: 1px solid rgba(58, 215, 192, 0.2);
            border-radius: 30px;
            padding: 2px 12px;
            margin-bottom: 18px;
        }

        .problem-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .problem-card p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--body);
        }

        .process-split {
            background: #0D1626;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .process-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 60px;
            align-items: center;
        }

        .process-visual {
            position: relative;
            border-radius: var(--r-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .process-visual img {
            width: 100%;
            aspect-ratio: 4 / 4.2;
            object-fit: cover;
        }

        .process-visual .visual-cap {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px 20px 16px;
            color: var(--text);
            font-size: 14px;
            background: linear-gradient(0deg, rgba(5, 9, 18, 0.9) 0%, transparent 100%);
        }

        .process-text h2 {
            font-size: clamp(28px, 3.4vw, 42px);
            line-height: 1.3;
        }

        .process-text > p {
            margin-top: 16px;
            color: var(--body);
        }

        .step-list {
            margin-top: 30px;
            display: grid;
            gap: 14px;
        }

        .step-item {
            display: flex;
            gap: 20px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--line);
            border-radius: var(--r-md);
            padding: 18px 20px;
            align-items: flex-start;
            transition: var(--transition);
        }

        .step-item:hover {
            border-color: rgba(58, 215, 192, 0.3);
            background: rgba(58, 215, 192, 0.04);
        }

        .step-num {
            display: inline-flex;
            width: 40px;
            height: 40px;
            flex: 0 0 auto;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            font-weight: 800;
            font-size: 15px;
            color: var(--acid);
            background: rgba(201, 247, 58, 0.1);
            border: 1px solid rgba(201, 247, 58, 0.2);
        }

        .step-content h3 {
            font-size: 18px;
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .step-content p, .step-content div {
            font-size: 15.5px;
            color: var(--muted);
            line-height: 1.8;
        }

        .sla-strip {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            border: 1px solid var(--line);
            border-radius: var(--r-lg);
            background: rgba(255, 255, 255, 0.03);
            overflow: hidden;
        }

        .sla-item {
            padding: 24px;
            border-right: 1px solid var(--line);
            text-align: left;
        }

        .sla-item:last-child {
            border-right: none;
        }

        .sla-item strong {
            display: block;
            color: var(--acid);
            font-size: 34px;
            font-weight: 800;
            line-height: 1.1;
            font-variant-numeric: tabular-nums;
            letter-spacing: -1px;
        }

        .sla-item span {
            display: block;
            margin-top: 8px;
            color: var(--muted);
            font-size: 14.5px;
        }

        .workflow-row {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 60px;
            align-items: center;
        }

        .workflow-image-wrap {
            position: relative;
            border-radius: var(--r-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .workflow-image-wrap img {
            width: 100%;
            aspect-ratio: 4 / 3.4;
            object-fit: cover;
        }

        .deliver-note {
            display: flex;
            gap: 14px;
            background: rgba(201, 247, 58, 0.07);
            border-left: 3px solid var(--acid);
            border-radius: 0 var(--r-md) var(--r-md) 0;
            padding: 18px 20px;
            margin-top: 24px;
            font-size: 15.5px;
            color: var(--body);
        }

        .deliver-note svg {
            width: 20px;
            height: 20px;
            flex: 0 0 auto;
            color: var(--acid);
            margin-top: 3px;
        }

        .feature-cols {
            background: #0c1321;
        }

        .feature-cols .section-head {
            max-width: 720px;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .feature-card {
            background: var(--panel-strong);
            border: 1px solid var(--line);
            border-radius: var(--r-lg);
            padding: 34px;
            backdrop-filter: blur(14px);
            position: relative;
            overflow: hidden;
        }

        .feature-card::after {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            left: 0;
            height: 1px;
            width: 40%;
            background: var(--acid);
            opacity: 0.4;
        }

        .feature-card h3 {
            font-size: 24px;
            margin-bottom: 10px;
        }

        .feature-card > p {
            color: var(--muted);
            margin-bottom: 26px;
        }

        .feature-list {
            display: grid;
            gap: 16px;
        }

        .feature-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            color: var(--body);
            font-size: 16px;
        }

        .feature-list svg {
            flex: 0 0 auto;
            width: 20px;
            height: 20px;
            margin-top: 4px;
            color: var(--aqua);
        }

        .faq-section {
            background: #0E1728;
        }

        .faq-wrap {
            max-width: 920px;
        }

        .faq-list {
            display: grid;
            gap: 14px;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--line);
            border-radius: var(--r-lg);
            transition: var(--transition);
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: rgba(201, 247, 58, 0.27);
        }

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            text-align: left;
            padding: 22px 24px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
        }

        .faq-question .icon {
            font-size: 24px;
            color: var(--acid);
            position: relative;
            width: 22px;
            height: 22px;
            flex: 0 0 auto;
        }

        .faq-question .icon::before, .faq-question .icon::after {
            content: "";
            position: absolute;
            background: var(--acid);
            border-radius: 2px;
            transition: transform 0.25s ease;
        }

        .faq-question .icon::before {
            width: 16px;
            height: 2px;
            top: 10px;
            left: 3px;
        }

        .faq-question .icon::after {
            width: 2px;
            height: 16px;
            top: 3px;
            left: 10px;
        }

        details[open] .faq-question .icon::after {
            transform: scaleY(0);
        }

        .faq-item .answer {
            padding: 0 24px 24px;
            color: var(--body);
            font-size: 16px;
            line-height: 1.85;
        }

        .cta-area {
            padding: 110px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-bg {
            position: absolute;
            inset: 0;
        }

        .cta-bg::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 12% 10%, rgba(201, 247, 58, 0.13), transparent 32%), rgba(7, 13, 23, 0.94);
        }

        .cta-card {
            position: relative;
            border-radius: var(--r-xl);
            border: 1px solid rgba(201, 247, 58, 0.2);
            background: rgba(11, 18, 32, 0.72);
            backdrop-filter: blur(16px);
            box-shadow: var(--shadow-lg);
            padding: 54px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 50px;
            overflow: hidden;
        }

        .cta-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 190px;
            height: 1px;
            background: linear-gradient(90deg, var(--acid), transparent);
        }

        .cta-card h2 {
            font-size: clamp(25px, 3vw, 36px);
            margin-bottom: 12px;
        }

        .cta-card p {
            color: var(--muted);
            max-width: 570px;
        }

        .cta-note {
            margin-top: 25px;
            font-size: 12.5px;
            color: rgba(234, 240, 250, 0.5);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .cta-note svg {
            width: 14px;
            height: 14px;
        }

        .site-footer {
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            background: #070D17;
            padding-top: 70px;
            padding-bottom: 28px;
        }

        .footer-inner {
            width: min(1280px, calc(100% - 48px));
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.6fr 0.9fr 0.9fr;
            gap: 60px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
            font-weight: 800;
            color: var(--text);
        }

        .footer-brand-text {
            font-size: 20px;
        }

        .footer-logo .logo-icon {
            width: 30px;
            height: 30px;
        }

        .footer-about {
            color: var(--muted);
            font-size: 14.5px;
            line-height: 1.9;
            max-width: 320px;
        }

        .footer-group h4 {
            font-size: 16px;
            margin-bottom: 20px;
            color: var(--text);
        }

        .footer-group ul {
            display: grid;
            gap: 12px;
        }

        .footer-group a {
            color: var(--muted);
            font-size: 14.5px;
            transition: var(--transition);
        }

        .footer-group a:hover {
            color: var(--acid);
        }

        .footer-bottom {
            width: min(1280px, calc(100% - 48px));
            margin: 48px auto 0;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            font-size: 13px;
            color: rgba(225, 232, 244, 0.45);
        }

        .footer-bottom-links {
            display: flex;
            gap: 24px;
        }

        .footer-bottom-links a {
            color: rgba(225, 232, 244, 0.45);
        }

        .footer-bottom-links a:hover {
            color: var(--acid);
        }

        .modal-backdrop {
            position: fixed;
            inset: 0;
            background: rgba(3, 7, 14, 0.78);
            backdrop-filter: blur(10px);
            z-index: 2000;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            opacity: 0;
            visibility: hidden;
            transition: 0.25s ease;
        }

        .modal-backdrop.open {
            opacity: 1;
            visibility: visible;
        }

        .modal-card {
            background: rgba(10, 17, 30, 0.98);
            border: 1px solid rgba(255, 255, 255, 0.13);
            border-radius: var(--r-xl);
            box-shadow: 0 28px 80px rgba(0, 0, 0, 0.55);
            width: min(540px, 100%);
            max-height: 92vh;
            overflow-y: auto;
            padding: 34px;
            position: relative;
        }

        .modal-card .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--muted);
            transition: var(--transition);
            background: rgba(255, 255, 255, 0.03);
        }

        .modal-card .modal-close:hover {
            border-color: rgba(201, 247, 58, 0.4);
            color: var(--acid);
            transform: rotate(90deg);
        }

        .modal-close svg {
            width: 20px;
            height: 20px;
        }

        .modal-card h3 {
            font-size: 24px;
            margin-bottom: 8px;
        }

        .modal-card .modal-sub {
            font-size: 15px;
            color: var(--muted);
            margin-bottom: 28px;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            margin-bottom: 7px;
            font-size: 14.5px;
            color: var(--body);
            font-weight: 500;
        }

        .form-control {
            width: 100%;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.13);
            border-radius: var(--r-md);
            padding: 12px 15px;
            font-size: 15px;
            color: var(--text);
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--aqua);
            box-shadow: 0 0 0 4px rgba(58, 215, 192, 0.13);
            background: rgba(255, 255, 255, 0.07);
        }

        textarea.form-control {
            min-height: 90px;
            resize: vertical;
        }

        .form-privacy {
            margin-top: 18px;
            font-size: 12px;
            color: rgba(225, 232, 244, 0.42);
            display: flex;
            align-items: center;
            gap: 7px;
        }

        .form-success {
            text-align: center;
            padding: 25px 0 5px;
            display: none;
        }

        .form-success svg {
            width: 48px;
            height: 48px;
            color: var(--acid);
            margin: 0 auto 18px;
        }

        .form-success h4 {
            font-size: 20px;
            margin-bottom: 10px;
        }

        .form-success p {
            color: var(--muted);
            font-size: 15px;
        }

        @media (max-width: 1024px) {
            :root {
                --space: 80px;
            }

            .main-nav {
                gap: 16px;
            }

            .main-nav a {
                font-size: 14.5px;
            }

            .process-grid, .workflow-row {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space: 64px;
            }

            .main-nav {
                position: fixed;
                top: 76px;
                left: 0;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: rgba(8, 14, 26, 0.99);
                backdrop-filter: blur(18px);
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                padding: 16px 24px 36px;
                gap: 4px;
                z-index: 999;
                display: none;
                box-shadow: 0 24px 50px rgba(0, 0, 0, 0.4);
            }

            .site-header.nav-open .main-nav {
                display: flex;
            }

            .main-nav a {
                padding: 15px 12px;
                font-size: 17px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.04);
                border-radius: 8px;
            }

            .main-nav a.active {
                background: rgba(201, 247, 58, 0.07);
            }

            .main-nav a.active::after {
                display: none;
            }

            .header-burger {
                display: inline-flex;
            }

            .header-cta .desktop-mode {
                display: none;
            }

            .header-inner {
                height: 64px;
            }

            .hero {
                padding: 140px 0 70px;
            }

            .hero h1 {
                letter-spacing: -0.5px;
            }

            .problem-grid, .feature-grid {
                grid-template-columns: 1fr;
            }

            .sla-strip {
                grid-template-columns: 1fr;
            }

            .sla-item {
                border-right: none;
                border-bottom: 1px solid var(--line);
            }

            .sla-item:last-child {
                border-bottom: none;
            }

            .cta-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 24px;
                gap: 24px;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .modal-card {
                max-height: 90vh;
                padding: 28px 20px;
            }
        }

        @media (max-width: 520px) {
            .container, .header-inner, .footer-inner, .footer-bottom {
                width: calc(100% - 32px);
            }

            .hero h1 {
                font-size: 36px;
            }

            .btn {
                width: 100%;
            }

            .hero-actions {
                flex-direction: column;
            }

            .section-head p, .hero-text {
                font-size: 16px;
            }

            .cta-card {
                border-radius: var(--r-lg);
            }

            .feature-card {
                padding: 24px;
            }
        }