/* roulang page: index */
:root {
            --primary: #6c3ef5;
            --primary-dark: #5428d6;
            --primary-light: #8b5cf6;
            --secondary: #ff5e7a;
            --accent: #00d4aa;
            --dark: #0d0b1f;
            --dark-2: #17143a;
            --bg: #f7f7fd;
            --card: #ffffff;
            --text: #1f1b33;
            --muted: #6b6b85;
            --border: #e8e6f7;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 18px 50px rgba(31, 27, 51, .08);
            --shadow-lg: 0 30px 80px rgba(82, 56, 255, .16);
            --transition: .25s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
        }

        p {
            margin-bottom: 0;
        }

        h1,
        h2,
        h3,
        h4 {
            margin: 0;
            line-height: 1.3;
            font-weight: 800;
        }

        button,
        input {
            font-family: inherit;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 11, 31, .85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            box-shadow: 0 10px 30px rgba(0, 0, 0, .2);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 72px;
            padding: 12px 0;
            flex-wrap: wrap;
        }

        .logo {
            font-size: 1.42rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: .3px;
            background: linear-gradient(135deg, #fff, rgba(255, 255, 255, .85));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .logo:hover {
            color: #fff;
        }

        .main-nav {
            display: flex;
            gap: 4px;
            padding: 4px;
            background: rgba(255, 255, 255, .08);
            border-radius: 999px;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 999px;
            color: rgba(255, 255, 255, .78);
            font-size: .9rem;
            font-weight: 600;
            white-space: nowrap;
        }

        .nav-link.active,
        .nav-link:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(108, 62, 245, .4);
        }

        .header-cta {
            margin-left: 4px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: .8rem 1.5rem;
            border-radius: 12px;
            font-weight: 700;
            font-size: .95rem;
            transition: all var(--transition);
            border: 2px solid transparent;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            box-shadow: 0 10px 30px rgba(108, 62, 245, .35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 16px 40px rgba(108, 62, 245, .45);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, .35);
            color: #fff;
        }

        .btn-outline:hover {
            border-color: #fff;
            color: #fff;
        }

        .btn-light {
            background: #fff;
            color: var(--dark);
            box-shadow: 0 10px 30px rgba(0, 0, 0, .15);
        }

        .btn-light:hover {
            background: #f0edff;
            color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, .5);
            color: #fff;
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, .1);
            color: #fff;
        }

        .btn-sm {
            padding: .5rem 1rem;
            font-size: .85rem;
            border-radius: 10px;
        }

        .hero {
            position: relative;
            padding: 120px 0 96px;
            background: linear-gradient(135deg, rgba(13, 11, 31, .92) 0%, rgba(23, 20, 58, .82) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            top: -20%;
            right: -10%;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(108, 62, 245, .35) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-content {
            max-width: 720px;
            position: relative;
            z-index: 2;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .2);
            padding: 6px 16px;
            border-radius: 999px;
            color: var(--accent);
            font-size: .85rem;
            font-weight: 700;
            letter-spacing: .4px;
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: clamp(2.4rem, 6vw, 4.3rem);
            letter-spacing: 1px;
            margin-bottom: 18px;
        }

        .hero p {
            font-size: 1.12rem;
            color: rgba(255, 255, 255, .8);
            max-width: 620px;
            margin-bottom: 30px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        .hero-stats {
            display: flex;
            gap: 44px;
            flex-wrap: wrap;
        }

        .stat strong {
            display: block;
            font-size: 1.9rem;
            color: var(--accent);
            line-height: 1.2;
        }

        .stat span {
            font-size: .9rem;
            color: rgba(255, 255, 255, .65);
        }

        .section {
            padding: 96px 0;
        }

        .section-gray {
            background: #f1effb;
        }

        .section-head {
            max-width: 640px;
            margin-bottom: 48px;
        }

        .section-head.text-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: .78rem;
            font-weight: 800;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .section-title {
            font-size: clamp(1.7rem, 3.8vw, 2.5rem);
            margin-bottom: 12px;
        }

        .section-desc {
            color: var(--muted);
            font-size: 1.02rem;
        }

        .card {
            background: var(--card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 32px 28px;
            border: 1px solid rgba(232, 230, 247, .6);
            transition: all var(--transition);
            height: 100%;
        }

        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(108, 62, 245, .2);
        }

        .icon-card {
            text-align: center;
        }

        .icon-box {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, rgba(108, 62, 245, .12), rgba(255, 94, 122, .12));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
        }

        .icon-card h3 {
            margin-bottom: 10px;
        }

        .icon-card p {
            color: var(--muted);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #f0edff;
            color: var(--primary);
            font-size: .78rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
        }

        .tag-secondary {
            background: rgba(255, 94, 122, .1);
            color: #e84367;
        }

        .tag.mini {
            padding: 2px 8px;
            font-size: .72rem;
        }

        .category-card {
            display: block;
            background: var(--card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border);
            height: 100%;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .category-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .category-body {
            padding: 28px;
        }

        .category-body .tag {
            margin-bottom: 12px;
        }

        .category-body h3 {
            font-size: 1.45rem;
            margin-bottom: 10px;
        }

        .category-body p {
            color: var(--muted);
            margin-bottom: 16px;
        }

        .card-link {
            font-weight: 700;
            color: var(--primary);
        }

        .card-link i {
            transition: transform var(--transition);
        }

        .category-card:hover .card-link i {
            transform: translateX(6px);
        }

        .news-list {
            list-style: none;
            background: var(--card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 8px 28px;
        }

        .news-list li {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
        }

        .news-list li:last-child {
            border-bottom: none;
        }

        .news-date {
            flex: 0 0 92px;
            color: var(--muted);
            font-size: .8rem;
            line-height: 1.4;
        }

        .news-info {
            flex: 1;
            min-width: 0;
        }

        .news-title {
            color: var(--text);
            font-weight: 800;
            font-size: 1.05rem;
            transition: color var(--transition);
        }

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

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 6px;
        }

        .news-read {
            font-size: .82rem;
            color: var(--muted);
        }

        .empty-tip {
            background: var(--card);
            border-radius: var(--radius);
            padding: 40px;
            text-align: center;
            color: var(--muted);
            box-shadow: var(--shadow);
        }

        .steps-section {
            background: linear-gradient(180deg, #fff 0%, var(--bg) 100%);
        }

        .step {
            background: var(--card);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition);
            height: 100%;
        }

        .step:hover {
            transform: translateY(-4px);
            border-color: rgba(108, 62, 245, .3);
        }

        .step-num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-weight: 900;
            font-size: .9rem;
            box-shadow: 0 8px 20px rgba(108, 62, 245, .3);
        }

        .step h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
        }

        .step p {
            color: var(--muted);
            font-size: .95rem;
        }

        .band {
            background: linear-gradient(135deg, #17143a 0%, #0d0b1f 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            padding: 96px 0;
        }

        .band .section-title {
            color: #fff;
        }

        .band .section-eyebrow {
            color: var(--accent);
        }

        .live-bar {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 999px;
            padding: 10px 22px;
            font-weight: 600;
            margin-bottom: 32px;
        }

        .live-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 0 rgba(0, 212, 170, .6);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(0, 212, 170, .5);
            }
            70% {
                box-shadow: 0 0 0 16px rgba(0, 212, 170, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(0, 212, 170, 0);
            }
        }

        .status-grid {
            margin-top: 30px;
        }

        .status-item {
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius-sm);
            padding: 26px 20px;
            text-align: center;
            transition: all var(--transition);
        }

        .status-item:hover {
            background: rgba(255, 255, 255, .12);
            transform: translateY(-3px);
        }

        .status-item strong {
            display: block;
            font-size: 2.1rem;
            background: linear-gradient(135deg, var(--accent), #fff);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }

        .status-item span {
            color: rgba(255, 255, 255, .7);
            font-size: .9rem;
        }

        .rank-list {
            list-style: none;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--card);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow);
            padding: 18px 20px;
            margin-bottom: 12px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            counter-increment: rank;
        }

        .rank-item::before {
            content: counter(rank, decimal-leading-zero);
            flex: 0 0 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(108, 62, 245, .1), rgba(255, 94, 122, .1));
            color: var(--primary);
            border-radius: 10px;
            font-weight: 900;
            font-size: .85rem;
        }

        .rank-item:hover {
            transform: translateX(6px);
            border-color: rgba(108, 62, 245, .3);
        }

        .rank-item h3 {
            font-size: 1.05rem;
            margin-bottom: 2px;
        }

        .rank-item p {
            color: var(--muted);
            font-size: .88rem;
        }

        .faq-list {
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 22px 26px;
            margin-bottom: 14px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }

        .faq-item[open] {
            border-color: rgba(108, 62, 245, .25);
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            font-weight: 800;
            font-size: 1.03rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

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

        .faq-item summary::after {
            content: "+";
            font-size: 1.4rem;
            font-weight: 400;
            color: var(--primary);
            transition: transform var(--transition);
        }

        .faq-item[open] summary::after {
            content: "−";
        }

        .faq-body {
            margin-top: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        .cta {
            position: relative;
            color: #fff;
            padding: 110px 0;
            text-align: center;
            background: linear-gradient(135deg, rgba(108, 62, 245, .92), rgba(255, 94, 122, .86)), url('/assets/images/backpic/back-3.png') center/cover;
        }

        .cta h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            margin-bottom: 16px;
        }

        .cta p {
            color: rgba(255, 255, 255, .85);
            max-width: 560px;
            margin: 0 auto 34px;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .68);
            padding: 56px 0 30px;
        }

        .footer-grid {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 30px;
            flex-wrap: wrap;
            padding-bottom: 30px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-brand {
            max-width: 420px;
        }

        .footer-logo {
            font-size: 1.5rem;
            font-weight: 900;
            color: #fff;
        }

        .footer-logo:hover {
            color: #fff;
        }

        .footer-brand p {
            margin-top: 12px;
            font-size: .9rem;
            color: rgba(255, 255, 255, .55);
            line-height: 1.7;
        }

        .footer-links {
            display: flex;
            gap: 22px;
            flex-wrap: wrap;
            padding-top: 6px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .65);
            font-weight: 600;
        }

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

        .copyright {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 28px;
            font-size: .82rem;
            color: rgba(255, 255, 255, .45);
        }

        .disclaimer {
            font-size: .8rem;
        }

        @media (max-width: 1024px) {
            .hero {
                padding: 100px 0 72px;
            }
            .section {
                padding: 76px 0;
            }
        }

        @media (max-width: 900px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .main-nav {
                order: 3;
                width: 100%;
                overflow-x: auto;
                scrollbar-width: none;
                justify-content: flex-start;
            }
            .main-nav::-webkit-scrollbar {
                display: none;
            }
            .header-cta {
                order: 2;
            }
            .news-list li {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .news-date {
                flex: none;
            }
        }

        @media (max-width: 768px) {
            .hero-stats {
                gap: 24px;
            }
            .section {
                padding: 64px 0;
            }
            .section-head {
                margin-bottom: 34px;
            }
            .category-card img {
                height: 170px;
            }
        }

        @media (max-width: 640px) {
            .hero {
                padding: 78px 0 56px;
            }
            .btn {
                width: 100%;
            }
            .hero-actions {
                flex-direction: column;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .footer-grid {
                flex-direction: column;
            }
            .copyright {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .main-nav {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 14px;
                font-size: .85rem;
            }
            .hero h1 {
                font-size: 2rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #6c4cf1;
            --primary-dark: #4c2cd6;
            --primary-soft: #eef0ff;
            --accent: #ff7a3d;
            --accent-dark: #e85d1f;
            --bg-nav: #13111f;
            --bg-deep: #0f0d1b;
            --bg-body: #f5f6fb;
            --bg-surface: #ffffff;
            --text-strong: #14121f;
            --text-body: #3d3c4d;
            --text-muted: #7a7a95;
            --border: #e8e7f2;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-card: 0 10px 36px rgba(58, 42, 128, 0.08);
            --shadow-hover: 0 18px 48px rgba(58, 42, 128, 0.14);
            --space-section: 90px;
            --transition: 0.28s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

        ul,
        ol {
            list-style: none;
        }

        button,
        input {
            font: inherit;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1;
            padding: 14px 26px;
            border-radius: 999px;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 6px 20px rgba(108, 76, 241, 0.3);
            border: 1px solid transparent;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(108, 76, 241, 0.4);
            background: linear-gradient(135deg, #7d62f5, #5432e2);
            color: #fff;
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            box-shadow: 0 6px 20px rgba(255, 122, 61, 0.3);
        }

        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(255, 122, 61, 0.4);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

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

        .btn-lg {
            padding: 18px 34px;
            font-size: 16px;
        }

        .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            letter-spacing: 0.3px;
        }

        .tag-soft {
            background: var(--primary-soft);
            color: var(--primary-dark);
        }

        .tag-accent {
            background: rgba(255, 122, 61, 0.12);
            color: var(--accent-dark);
        }

        /* ========== Header 导航 ========== */
        .site-header {
            background: var(--bg-nav);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 24px;
        }

        .logo {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .logo::before {
            content: "";
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--primary));
            box-shadow: 0 0 0 4px rgba(255, 122, 61, 0.2);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            color: rgba(255, 255, 255, 0.66);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 18px;
            border-radius: 999px;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(108, 76, 241, 0.35), rgba(255, 122, 61, 0.25));
            box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
        }

        .header-cta {
            flex-shrink: 0;
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
        }

        .mobile-toggle span {
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s;
        }

        /* ========== Hero / Banner ========== */
        .page-hero {
            background: linear-gradient(135deg, rgba(15, 13, 27, 0.88), rgba(25, 18, 48, 0.78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            padding: 110px 0 90px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            right: -120px;
            top: -120px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 122, 61, 0.25), transparent 70%);
            pointer-events: none;
        }

        .page-hero .grid-container {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(8px);
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 22px;
        }

        .hero-badge i {
            color: var(--accent);
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 25px;
            max-width: 680px;
        }

        .page-hero h1 span {
            background: linear-gradient(135deg, #a08cff, var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin-bottom: 35px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .hero-meta {
            margin-top: 48px;
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            padding-top: 26px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            max-width: 620px;
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }

        .hero-meta i {
            color: var(--accent);
        }

        /* ========== 通用 Section ========== */
        .section {
            padding: var(--space-section) 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-deep {
            background: var(--bg-deep);
            color: #fff;
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
        }

        .section-head .tag {
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .section-deep .section-title {
            color: #fff;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.75;
        }

        .section-deep .section-desc {
            color: rgba(255, 255, 255, 0.6);
        }

        .section-head.left {
            text-align: left;
            margin-left: 0;
        }

        /* ========== 步骤 / 时间线 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 26px;
        }

        .step-card {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 32px 24px;
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .step-num {
            font-size: 13px;
            font-weight: 800;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            width: 40px;
            height: 40px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            letter-spacing: 0.5px;
            box-shadow: 0 6px 16px rgba(108, 76, 241, 0.3);
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== 指南卡片 ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .guide-card {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }

        .card-cover {
            height: 190px;
            position: relative;
            overflow: hidden;
        }

        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .guide-card:hover .card-cover img {
            transform: scale(1.06);
        }

        .card-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(15, 13, 27, 0.6));
        }

        .card-cover .tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
        }

        .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }

        .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.4;
        }

        .card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            transition: gap var(--transition), color var(--transition);
        }

        .card-link:hover {
            color: var(--accent);
            gap: 10px;
        }

        /* ========== 数据统计 ========== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            padding: 48px 0;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(108, 76, 241, 0.2), rgba(255, 122, 61, 0.16));
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
        }

        .stat-item {
            text-align: center;
            padding: 10px 20px;
        }

        .stat-num {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            display: flex;
            align-items: baseline;
            justify-content: center;
            gap: 2px;
        }

        .stat-num span {
            font-size: 20px;
            color: var(--accent);
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 8px;
        }

        /* ========== 内容列表 ========== */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            counter-reset: rank;
        }

        .list-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .list-item:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow-hover);
        }

        .list-rank {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-soft);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .list-item:nth-child(even) .list-rank {
            background: rgba(255, 122, 61, 0.12);
            color: var(--accent-dark);
        }

        .list-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .list-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
        }

        .list-body p {
            font-size: 14px;
            color: var(--text-muted);
        }

        .list-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .list-meta i {
            color: var(--primary);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(108, 76, 241, 0.3);
            box-shadow: var(--shadow-hover);
        }

        .faq-item summary {
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-strong);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            gap: 14px;
            position: relative;
        }

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

        .faq-item summary::before {
            content: "\f059";
            font-family: "Font Awesome 6 Free";
            font-weight: 400;
            color: var(--primary);
            font-size: 18px;
        }

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-left: auto;
            color: var(--text-muted);
            transition: transform 0.3s ease;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item .answer {
            padding: 0 28px 24px 60px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-band {
            background: linear-gradient(135deg, var(--primary-dark), #2c1a6e 60%, var(--accent-dark));
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            box-shadow: 0 20px 60px rgba(76, 44, 214, 0.35);
            position: relative;
            overflow: hidden;
        }

        .cta-band::before {
            content: "";
            position: absolute;
            top: -80px;
            left: -80px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-band::after {
            content: "";
            position: absolute;
            bottom: -100px;
            right: -40px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 122, 61, 0.15);
        }

        .cta-band .grid-container {
            position: relative;
            z-index: 2;
        }

        .cta-band h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-band p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.78);
            max-width: 520px;
            margin: 0 auto 32px;
        }

        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-nav);
            color: rgba(255, 255, 255, 0.65);
            padding: 60px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .footer-logo {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .footer-brand .footer-logo::before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            max-width: 340px;
            line-height: 1.8;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links a::before {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 10px;
            color: var(--primary);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .copyright {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .copyright .disclaimer {
            color: rgba(255, 255, 255, 0.3);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            :root {
                --space-section: 70px;
            }

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

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

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

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

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                min-height: 60px;
            }

            .mobile-toggle {
                display: flex;
            }

            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 0;
                gap: 8px;
            }

            .main-nav.open {
                display: flex;
            }

            .nav-link {
                padding: 12px 16px;
                justify-content: flex-start;
            }

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

            .main-nav.open+.header-cta {
                display: none;
            }

            .page-hero {
                padding: 80px 0 64px;
            }

            .page-hero h1 {
                font-size: 32px;
            }

            .hero-meta {
                flex-direction: column;
                gap: 10px;
            }

            .section-head {
                margin-bottom: 40px;
            }

            .section-title {
                font-size: 28px;
            }

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

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

            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
                padding: 32px 16px;
            }

            .list-item {
                flex-wrap: wrap;
                gap: 14px;
            }

            .list-meta {
                width: 100%;
                padding-left: 64px;
            }

            .cta-band {
                padding: 44px 24px;
            }

            .cta-band h2 {
                font-size: 26px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

        @media (max-width: 520px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .logo {
                font-size: 18px;
            }

            .header-cta {
                font-size: 13px;
                padding: 8px 14px;
            }

            .page-hero h1 {
                font-size: 27px;
            }

            .page-hero p {
                font-size: 15px;
            }

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

            .section-title {
                font-size: 24px;
            }

            .stats-bar {
                grid-template-columns: 1fr;
            }

            .stat-item {
                padding: 8px;
            }

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

            .list-meta {
                padding-left: 0;
            }

            .faq-item summary {
                padding: 18px;
                font-size: 15px;
            }

            .faq-item .answer {
                padding: 0 18px 20px;
            }

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

        /* Foundation 覆盖 */
        .grid-container {
            max-width: 1200px;
        }

        .accordion-title {
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius-md);
        }

/* roulang page: article */
:root {
    --primary: #0b0f2a;
    --primary-light: #141b3d;
    --accent: #00c2ff;
    --accent-2: #00e0a8;
    --hot: #ff6b35;
    --bg: #f5f7fb;
    --bg-alt: #ffffff;
    --text: #1e293b;
    --text-weak: #64748b;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 10px 40px rgba(15, 23, 42, .08);
    --shadow-lg: 0 20px 60px rgba(15, 23, 42, .12);
    --text-on-dark: #f1f5f9;
    --text-on-dark-weak: #94a3b8;
    --header-h: 72px;
    --spacer: 96px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
button { border: 0; cursor: pointer; font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.grid-container { max-width: 1200px; }

.site-header {
    height: var(--header-h);
    background: rgba(11, 15, 42, .92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    padding: 0 24px;
}

.header-inner {
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: .5px;
    color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: 999px;
    font-size: .9375rem;
    font-weight: 500;
    color: rgba(255, 255, 255, .72);
    border: 1px solid transparent;
    transition: all .22s ease;
    white-space: nowrap;
}

.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, .08);
    border-color: rgba(255, 255, 255, .1);
}

.nav-link.active {
    color: #fff;
    background: linear-gradient(135deg, rgba(0, 194, 255, .22), rgba(0, 224, 168, .18));
    border-color: rgba(0, 194, 255, .32);
}

.header-cta {
    margin-left: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: .2px;
    transition: all .25s cubic-bezier(.4, 0, .2, 1);
    white-space: nowrap;
    padding: 12px 26px;
    font-size: .9375rem;
    text-align: center;
}

.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: 3px solid rgba(0, 194, 255, .5); outline-offset: 2px; }

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #04121a;
    box-shadow: 0 4px 20px rgba(0, 194, 255, .28);
}

.btn-primary:hover { box-shadow: 0 8px 30px rgba(0, 194, 255, .4); }

.btn-outline {
    background: transparent;
    color: rgba(255, 255, 255, .92);
    border: 1.5px solid rgba(255, 255, 255, .4);
}

.btn-outline:hover { border-color: var(--accent); color: #fff; background: rgba(0, 194, 255, .08); }

.btn-block { width: 100%; }
.btn-sm { padding: 8px 18px; font-size: .84375rem; }
.btn-lg { padding: 15px 38px; font-size: 1.05rem; }

.menu-toggle {
    display: none;
    background: rgba(255, 255, 255, .08);
    border-radius: 10px;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.25rem;
    transition: background .2s;
}

.menu-toggle:hover { background: rgba(255, 255, 255, .16); }

/* Article Hero */
.article-hero {
    position: relative;
    background: var(--primary);
    padding: 90px 0 90px;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
}

.article-hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: .22;
}

.article-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, rgba(11, 15, 42, .88) 20%, rgba(11, 15, 42, .72) 60%, rgba(0, 194, 255, .25) 100%);
}

.article-hero .grid-container { position: relative; z-index: 2; }

.hero-inner { max-width: 880px; }

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: .84375rem;
    color: var(--text-on-dark-weak);
    margin-bottom: 24px;
}

.breadcrumb a { color: var(--text-on-dark-weak); transition: color .2s; }
.breadcrumb a:hover { color: var(--accent); }
.bc-sep { opacity: .5; }

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 999px;
    font-size: .8125rem;
    font-weight: 600;
    letter-spacing: .3px;
}

.badge-web {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #04121a;
}

.badge-soft {
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .16);
    color: var(--text-on-dark);
}

.hero-title {
    font-size: clamp(1.75rem, 4vw, 2.875rem);
    line-height: 1.25;
    color: #fff;
    font-weight: 800;
    margin-bottom: 22px;
    letter-spacing: -.5px;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    color: var(--text-on-dark-weak);
    font-size: .875rem;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.meta-item i { color: var(--accent); }

/* Article Main */
.article-main { padding: var(--spacer) 0 60px; background: var(--bg); }

.article-card {
    background: var(--bg-alt);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 40px 44px;
    margin-bottom: 32px;
    border: 1px solid rgba(0, 0, 0, .04);
}

.article-content { font-size: 1.0625rem; line-height: 1.9; color: #1e293b; }

.article-content h2 {
    font-size: 1.55rem;
    font-weight: 700;
    margin: 2.2rem 0 1rem;
    padding-bottom: .6rem;
    border-bottom: 2px solid #eef2f7;
    color: #0f172a;
}

.article-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 1.9rem 0 .8rem;
    color: #0f172a;
}

.article-content p { margin: 1rem 0; }

.article-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--hot); }

.article-content ul,
.article-content ol {
    margin: 1rem 0;
    padding-left: 1.6rem;
}

.article-content li { margin: .45rem 0; }

.article-content img {
    border-radius: 14px;
    margin: 1.6rem auto;
    box-shadow: var(--shadow);
}

.article-content blockquote {
    border-left: 4px solid var(--accent);
    background: #f0f7ff;
    padding: 1rem 1.4rem;
    border-radius: 0 12px 12px 0;
    margin: 1.6rem 0;
    color: #334155;
    font-style: italic;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: .9375rem;
}

.article-content th {
    background: var(--primary-light);
    color: #fff;
    padding: 12px 14px;
    text-align: left;
    font-weight: 600;
}

.article-content td {
    padding: 11px 14px;
    border-bottom: 1px solid #e2e8f0;
}

.article-content code {
    background: #f1f5f9;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: .875em;
    font-family: "SFMono-Regular", Consolas, monospace;
}

.article-content pre {
    background: #0f172a;
    color: #e2e8f0;
    padding: 20px;
    border-radius: 12px;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.article-content pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

/* Not Found */
.not-found {
    text-align: center;
    padding: 60px 20px;
}

.not-found i {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.not-found h2 { font-size: 1.75rem; margin-bottom: 10px; color: var(--text); }
.not-found p { color: var(--text-weak); margin-bottom: 28px; }

/* Sidebar */
.side-card {
    background: var(--bg-alt);
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 28px;
    margin-bottom: 28px;
    border: 1px solid rgba(0, 0, 0, .04);
}

.side-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
}

.side-card h3::before {
    content: '';
    width: 4px;
    height: 18px;
    border-radius: 4px;
    background: linear-gradient(180deg, var(--accent), var(--accent-2));
}

.side-access { background: linear-gradient(160deg, var(--primary), var(--primary-light)); color: #fff; text-align: center; padding: 32px 24px; }

.side-access-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #04121a;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    box-shadow: 0 6px 20px rgba(0, 194, 255, .3);
}

.side-access h3 { color: #fff; justify-content: center; }
.side-access h3::before { display: none; }
.side-access p { color: var(--text-on-dark-weak); font-size: .875rem; margin-bottom: 22px; }

.side-list { list-style: none; }

.side-list-item { border-bottom: 1px solid var(--border); padding: 12px 0; }

.side-list-item:last-child { border-bottom: 0; padding-bottom: 0; }

.side-list-item a {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.side-list-title {
    font-size: .9375rem;
    font-weight: 500;
    color: var(--text);
    line-height: 1.5;
    transition: color .2s;
}

.side-list-title:hover { color: var(--accent); }

.side-list-date {
    font-size: .8125rem;
    color: var(--text-weak);
}

.side-note { color: var(--text-weak); font-size: .875rem; }

.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }

.tag-cloud a {
    padding: 6px 14px;
    background: var(--bg);
    border-radius: 999px;
    font-size: .8125rem;
    font-weight: 500;
    color: var(--text-weak);
    border: 1px solid var(--border);
    transition: all .22s;
}

.tag-cloud a:hover {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #04121a;
    border-color: transparent;
    transform: translateY(-1px);
}

.side-status { padding: 22px 24px; }

.status-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    font-size: .875rem;
    color: var(--text-weak);
    border-bottom: 1px dashed var(--border);
}

.status-row:last-child { border-bottom: 0; }

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-2);
    display: inline-block;
    margin-right: 8px;
    box-shadow: 0 0 8px rgba(0, 224, 168, .5);
}

.status-dot-warn { background: var(--hot); box-shadow: 0 0 8px rgba(255, 107, 53, .5); }

.status-value { font-weight: 600; color: var(--text); }

/* Related Section */
.related-section { padding: 80px 0 40px; background: var(--bg-alt); }

.section-head { text-align: center; margin-bottom: 48px; }

.section-head h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
    letter-spacing: -.5px;
}

.section-head p { color: var(--text-weak); font-size: 1rem; }

.related-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--bg-alt);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0, 0, 0, .04);
    transition: all .28s cubic-bezier(.4, 0, .2, 1);
}

.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.related-cover { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }

.related-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }

.related-card:hover .related-cover img { transform: scale(1.06); }

.cover-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: linear-gradient(135deg, var(--hot), #ff9f43);
    color: #fff;
    font-size: .75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 999px;
    box-shadow: 0 4px 12px rgba(255, 107, 53, .35);
}

.related-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }

.related-body h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    line-height: 1.55;
    margin-bottom: 10px;
    color: var(--text);
}

.related-body p {
    font-size: .875rem;
    color: var(--text-weak);
    line-height: 1.6;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 14px;
}

.related-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: .8125rem;
    color: var(--text-weak);
    border-top: 1px solid var(--border);
    padding-top: 12px;
}

.related-empty { text-align: center; padding: 40px; color: var(--text-weak); font-size: .9375rem; }

/* CTA Section */
.cta-section { padding: 80px 0; background: var(--bg); }

.cta-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 60%, rgba(0, 194, 255, .28) 100%);
    border-radius: 22px;
    padding: 54px 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 28px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.cta-card::before {
    content: '';
    position: absolute;
    right: -80px;
    top: -80px;
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(0, 224, 168, .2), transparent 70%);
}

.cta-info h2 { color: #fff; font-size: 1.65rem; font-weight: 800; margin-bottom: 10px; letter-spacing: -.3px; }

.cta-info p { color: var(--text-on-dark-weak); font-size: .96875rem; max-width: 520px; }

.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; position: relative; z-index: 1; }

/* Footer */
.site-footer {
    background: var(--primary);
    padding: 70px 0 30px;
    color: var(--text-on-dark-weak);
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-brand { max-width: 360px; }

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    margin-bottom: 14px;
}

.footer-brand p { font-size: .90625rem; line-height: 1.7; }

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: var(--text-on-dark-weak);
    font-size: .9375rem;
    transition: color .2s;
}

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

.copyright {
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: .84375rem;
}

.disclaimer { opacity: .6; }

/* Responsive */
@media (max-width: 1024px) {
    .article-main { --spacer: 72px; }
    .article-card { padding: 32px 30px; }
    .cta-card { padding: 40px 36px; }
}

@media (max-width: 768px) {
    :root { --spacer: 60px; }
    .site-header { padding: 0 16px; }
    .main-nav {
        display: none;
        position: absolute;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: rgba(11, 15, 42, .98);
        flex-direction: column;
        padding: 20px 24px;
        border-bottom: 1px solid rgba(255, 255, 255, .1);
        backdrop-filter: blur(20px);
    }
    .main-nav.open { display: flex; }
    .nav-link { justify-content: center; width: 100%; }
    .menu-toggle { display: flex; }
    .header-cta { display: none; }
    .hero-meta { gap: 12px; }
    .article-card { padding: 24px 20px; }
    .cta-card { flex-direction: column; text-align: center; padding: 34px 24px; }
    .cta-actions { justify-content: center; }
    .footer-grid { flex-direction: column; gap: 28px; }
    .copyright { flex-direction: column; }
}

@media (max-width: 520px) {
    .logo { font-size: 1.15rem; }
    .article-hero { padding: 56px 0 64px; }
    .hero-title { font-size: 1.6rem; }
    .btn-lg { padding: 13px 24px; font-size: .96875rem; }
    .related-section, .cta-section { padding: 50px 0; }
    .cta-card::before { width: 160px; height: 160px; }
}

/* roulang page: category2 */
:root{
    --c-primary:#6C3DF4;
    --c-primary-dark:#5227C9;
    --c-primary-light:#EAE4FE;
    --c-accent:#FF5A79;
    --c-dark:#17142A;
    --c-dark-2:#221D3D;
    --c-bg:#F7F6FE;
    --c-card:#FFFFFF;
    --c-text:#1B1830;
    --c-text-weak:#6A6680;
    --c-border:#E8E5F5;
    --c-success:#16B87A;
    --c-warning:#FFB020;
    --radius-lg:20px;
    --radius-md:14px;
    --radius-sm:8px;
    --shadow-sm:0 2px 10px rgba(50,30,110,.06);
    --shadow-md:0 10px 30px rgba(50,30,110,.09);
    --shadow-lg:0 24px 60px rgba(38,20,90,.14);
    --space-section:clamp(56px, 8vw, 100px);
    --font-main:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:var(--font-main);
    background:var(--c-bg);
    color:var(--c-text);
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:color .2s ease}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit;outline:none}
.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.container-sm{max-width:860px;margin:0 auto;padding:0 24px}

/* ===== Button ===== */
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    font-size:15px;
    font-weight:600;
    padding:12px 26px;
    border-radius:999px;
    border:2px solid transparent;
    cursor:pointer;
    transition:all .25s ease;
    line-height:1.4;
    text-align:center;
    white-space:nowrap;
}
.btn i{font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px rgba(108,61,244,.28)}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-2px);box-shadow:0 10px 24px rgba(108,61,244,.35);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--c-primary);border-color:#fff;box-shadow:0 6px 18px rgba(0,0,0,.12)}
.btn-white:hover{background:#F4F1FF;transform:translateY(-2px);color:var(--c-primary-dark)}
.btn-lg{padding:16px 38px;font-size:17px}
.btn-sm{padding:8px 20px;font-size:14px}

/* ===== Header / Nav ===== */
.site-header{
    position:fixed;
    top:0;left:0;right:0;z-index:999;
    background:rgba(255,255,255,.85);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(232,229,245,.8);
    box-shadow:0 1px 12px rgba(38,20,90,.04);
    transition:box-shadow .3s;
}
.site-header:hover{box-shadow:0 4px 20px rgba(38,20,90,.08)}
.header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:70px;
    gap:16px;
}
.logo{
    font-size:22px;
    font-weight:900;
    color:var(--c-text);
    letter-spacing:-.5px;
    display:flex;
    align-items:center;
    gap:8px;
    flex-shrink:0;
}
.logo i{
    width:36px;height:36px;
    background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
    border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    color:#fff;font-size:16px;
    box-shadow:0 4px 12px rgba(108,61,244,.3);
}
.main-nav{
    display:flex;
    align-items:center;
    gap:4px;
    margin:0 12px;
    background:var(--c-bg);
    padding:5px;
    border-radius:999px;
    border:1px solid var(--c-border);
}
.main-nav .nav-link{
    font-size:14px;
    font-weight:600;
    color:var(--c-text-weak);
    padding:8px 20px;
    border-radius:999px;
    transition:all .25s ease;
    display:inline-block;
    line-height:1.4;
}
.main-nav .nav-link:hover{color:var(--c-primary);background:rgba(108,61,244,.07)}
.main-nav .nav-link.active{
    background:var(--c-primary);
    color:#fff;
    box-shadow:0 4px 12px rgba(108,61,244,.28);
}
.header-cta{flex-shrink:0}

/* ===== Hero / Page Banner ===== */
.category-hero{
    position:relative;
    padding:150px 0 80px;
    background:linear-gradient(135deg,#17142A 0%,#241D45 55%,#38246B 100%);
    overflow:hidden;
    color:#fff;
}
.category-hero .hero-bg{
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center;
    opacity:.28;
    z-index:1;
}
.category-hero:before{
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(100deg,rgba(23,20,42,.88) 15%,rgba(23,20,42,.55) 60%,rgba(56,36,107,.45) 100%);
    z-index:2;
}
.hero-content{
    position:relative;
    z-index:3;
    max-width:820px;
}
.hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:rgba(255,255,255,.12);
    border:1px solid rgba(255,255,255,.18);
    padding:7px 18px;
    border-radius:999px;
    font-size:13px;
    font-weight:600;
    letter-spacing:.5px;
    margin-bottom:22px;
    backdrop-filter:blur(8px);
}
.hero-badge i{color:#9D7BFF}
.category-hero h1{
    font-size:clamp(32px,5vw,50px);
    font-weight:900;
    line-height:1.2;
    margin-bottom:18px;
    letter-spacing:-1px;
}
.category-hero h1 span{
    background:linear-gradient(90deg,#FF5A79,#FF8A5C,#9D7BFF);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}
.category-hero p{
    font-size:17px;
    line-height:1.8;
    color:rgba(255,255,255,.82);
    max-width:640px;
}
.hero-meta{
    display:flex;
    align-items:center;
    gap:24px;
    margin-top:30px;
    flex-wrap:wrap;
}
.hero-meta .meta-item{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:rgba(255,255,255,.75);
}
.hero-meta .meta-item i{color:#9D7BFF}

/* ===== Section Common ===== */
.section{
    padding:var(--space-section) 0;
}
.section-label{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:700;
    color:var(--c-primary);
    background:var(--c-primary-light);
    padding:6px 16px;
    border-radius:999px;
    margin-bottom:16px;
    letter-spacing:.5px;
}
.section-header{
    margin-bottom:44px;
}
.section-header h2{
    font-size:clamp(26px,3.5vw,38px);
    font-weight:900;
    line-height:1.3;
    letter-spacing:-.5px;
    margin-bottom:10px;
}
.section-header .sub-title{
    font-size:16px;
    color:var(--c-text-weak);
    max-width:560px;
    line-height:1.7;
}
.text-center .section-header h2,.text-center .sub-title{margin-left:auto;margin-right:auto}

/* ===== Breadcrumb ===== */
.breadcrumb-wrap{
    position:relative;
    z-index:5;
    padding:20px 0;
    background:transparent;
}
.breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:13px;
    color:rgba(255,255,255,.55);
}
.breadcrumb a{color:rgba(255,255,255,.7);transition:color .2s}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}

/* ===== Filter Tab ===== */
.filter-tabs{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-bottom:36px;
}
.filter-tab{
    padding:9px 22px;
    border-radius:999px;
    background:#fff;
    border:1px solid var(--c-border);
    font-size:14px;
    font-weight:600;
    color:var(--c-text-weak);
    cursor:pointer;
    transition:all .25s ease;
    display:inline-flex;
    align-items:center;
    gap:6px;
}
.filter-tab i{font-size:13px}
.filter-tab:hover{color:var(--c-primary);border-color:var(--c-primary)}
.filter-tab.active{
    background:var(--c-primary);
    color:#fff;
    border-color:var(--c-primary);
    box-shadow:0 4px 14px rgba(108,61,244,.24);
}

/* ===== Card Grid ===== */
.article-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:26px;
}
.article-card{
    background:var(--c-card);
    border-radius:var(--radius-lg);
    overflow:hidden;
    border:1px solid var(--c-border);
    box-shadow:var(--shadow-sm);
    transition:transform .3s ease,box-shadow .3s ease;
    display:flex;
    flex-direction:column;
}
.article-card:hover{
    transform:translateY(-6px);
    box-shadow:var(--shadow-md);
}
.card-cover{
    position:relative;
    aspect-ratio:16/9;
    overflow:hidden;
}
.card-cover img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .5s ease;
}
.article-card:hover .card-cover img{transform:scale(1.05)}
.card-badge{
    position:absolute;
    top:12px;left:12px;
    background:rgba(23,20,42,.72);
    backdrop-filter:blur(8px);
    color:#fff;
    font-size:12px;
    font-weight:600;
    padding:4px 12px;
    border-radius:999px;
    letter-spacing:.4px;
    z-index:2;
}
.card-body{
    padding:24px;
    display:flex;
    flex-direction:column;
    flex:1;
}
.card-category{
    font-size:12px;
    font-weight:700;
    color:var(--c-primary);
    text-transform:uppercase;
    letter-spacing:1px;
    margin-bottom:8px;
}
.card-body h3{
    font-size:19px;
    font-weight:800;
    line-height:1.5;
    margin-bottom:10px;
    color:var(--c-text);
    transition:color .2s;
}
.article-card:hover .card-body h3{color:var(--c-primary)}
.card-body p{
    font-size:14px;
    color:var(--c-text-weak);
    line-height:1.7;
    flex:1;
    display:-webkit-box;
    -webkit-line-clamp:3;
    -webkit-box-orient:vertical;
    overflow:hidden;
}
.card-footer{
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin-top:18px;
    padding-top:16px;
    border-top:1px solid var(--c-border);
}
.card-meta{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:13px;
    color:var(--c-text-weak);
}
.card-meta i{font-size:12px}
.read-more{
    font-size:14px;
    font-weight:600;
    color:var(--c-primary);
    display:inline-flex;
    align-items:center;
    gap:5px;
    transition:gap .3s;
}
.read-more:hover{gap:10px;color:var(--c-primary-dark)}

/* ===== Steps / Process ===== */
.steps-section{
    background:linear-gradient(135deg,#17142A,#221D3D);
    position:relative;
    overflow:hidden;
    color:#fff;
}
.steps-section:before{
    content:'';
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-3.png');
    background-size:cover;
    background-position:center;
    opacity:.12;
}
.steps-inner{position:relative;z-index:2}
.steps-section .section-label{background:rgba(255,255,255,.12);color:#9D7BFF}
.steps-section .section-header h2{color:#fff}
.steps-section .sub-title{color:rgba(255,255,255,.65)}
.steps-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
    margin-top:20px;
}
.step-card{
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.12);
    border-radius:var(--radius-lg);
    padding:30px 24px;
    transition:transform .3s ease,background .3s ease;
    position:relative;
}
.step-card:hover{
    background:rgba(255,255,255,.12);
    transform:translateY(-4px);
}
.step-num{
    width:48px;height:48px;
    border-radius:14px;
    background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
    display:flex;align-items:center;justify-content:center;
    font-size:18px;
    font-weight:800;
    color:#fff;
    margin-bottom:18px;
    box-shadow:0 6px 16px rgba(255,90,121,.22);
}
.step-card h3{font-size:17px;font-weight:700;margin-bottom:8px;color:#fff}
.step-card p{font-size:14px;color:rgba(255,255,255,.65);line-height:1.7}

/* ===== Feature Split ===== */
.split-row{
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:56px;
    align-items:center;
}
.split-image{
    position:relative;
    border-radius:var(--radius-lg);
    overflow:hidden;
    box-shadow:var(--shadow-lg);
}
.split-image img{
    width:100%;
    aspect-ratio:5/4;
    object-fit:cover;
}
.split-image:after{
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,transparent 55%,rgba(23,20,42,.5));
    pointer-events:none;
}
.image-float-card{
    position:absolute;
    bottom:20px;left:20px;right:20px;
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(12px);
    border-radius:var(--radius-md);
    padding:16px 20px;
    display:flex;
    align-items:center;
    gap:14px;
    box-shadow:var(--shadow-md);
    z-index:2;
}
.float-icon{
    width:40px;height:40px;
    border-radius:12px;
    background:var(--c-primary-light);
    color:var(--c-primary);
    display:flex;align-items:center;justify-content:center;
    font-size:16px;
    flex-shrink:0;
}
.float-icon.success{background:#E4F7F0;color:var(--c-success)}
.float-text{font-size:13px;color:var(--c-text-weak);line-height:1.5}
.float-text strong{display:block;color:var(--c-text);font-size:15px;font-weight:700}
.split-content .section-label{margin-top:10px}
.split-content h2{font-size:clamp(26px,3.5vw,36px);font-weight:900;line-height:1.3;margin-bottom:14px;letter-spacing:-.5px}
.split-content p{
    font-size:15px;
    color:var(--c-text-weak);
    line-height:1.8;
    margin-bottom:20px;
}
.check-list{
    display:flex;
    flex-direction:column;
    gap:14px;
    margin:24px 0 30px;
}
.check-list li{
    display:flex;
    align-items:flex-start;
    gap:12px;
    font-size:15px;
    font-weight:500;
    color:var(--c-text);
    line-height:1.5;
}
.check-list li i{
    width:22px;height:22px;
    border-radius:50%;
    background:var(--c-success);
    color:#fff;
    font-size:11px;
    display:flex;align-items:center;justify-content:center;
    flex-shrink:0;
    margin-top:4px;
}

/* ===== Topic Cards ===== */
.topic-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:22px;
}
.topic-card{
    background:var(--c-card);
    border-radius:var(--radius-lg);
    padding:28px;
    border:1px solid var(--c-border);
    box-shadow:var(--shadow-sm);
    transition:transform .3s,box-shadow .3s,border-color .3s;
    display:flex;
    gap:18px;
    align-items:flex-start;
}
.topic-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-md);
    border-color:var(--c-primary);
}
.topic-icon{
    width:50px;height:50px;
    border-radius:16px;
    background:var(--c-primary-light);
    color:var(--c-primary);
    display:flex;align-items:center;justify-content:center;
    font-size:20px;
    flex-shrink:0;
}
.topic-icon.warm{background:#FFF2E6;color:#FF8A5C}
.topic-icon.green{background:#E4F7F0;color:var(--c-success)}
.topic-icon.blue{background:#E4F1FF;color:#3D8CF4}
.topic-card h3{font-size:17px;font-weight:800;margin-bottom:8px}
.topic-card p{font-size:14px;color:var(--c-text-weak);line-height:1.7}
.topic-tags{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-top:12px;
}
.topic-tags .tag{
    font-size:12px;
    font-weight:600;
    padding:3px 12px;
    background:var(--c-bg);
    border-radius:999px;
    color:var(--c-text-weak);
}

/* ===== Tips List ===== */
.tips-list{
    background:var(--c-card);
    border-radius:var(--radius-lg);
    border:1px solid var(--c-border);
    box-shadow:var(--shadow-sm);
    padding:12px 0;
    overflow:hidden;
}
.tips-item{
    display:flex;
    align-items:flex-start;
    gap:18px;
    padding:20px 28px;
    border-bottom:1px solid var(--c-border);
    transition:background .25s ease;
}
.tips-item:last-child{border-bottom:none}
.tips-item:hover{background:#FBFAFF}
.tips-rank{
    width:36px;height:36px;
    border-radius:10px;
    background:var(--c-bg);
    border:1px solid var(--c-border);
    color:var(--c-text-weak);
    font-size:14px;
    font-weight:800;
    display:flex;align-items:center;justify-content:center;
    flex-shrink:0;
}
.tips-item:nth-child(1) .tips-rank{background:linear-gradient(135deg,#FFD700,#FFA500);color:#fff;border-color:transparent}
.tips-item:nth-child(2) .tips-rank{background:linear-gradient(135deg,#C0C0C0,#A8A8A8);color:#fff;border-color:transparent}
.tips-item:nth-child(3) .tips-rank{background:linear-gradient(135deg,#CD7F32,#B87333);color:#fff;border-color:transparent}
.tips-rank i{font-size:14px}
.tips-content{flex:1}
.tips-content h3{font-size:16px;font-weight:700;margin-bottom:6px;color:var(--c-text)}
.tips-content p{font-size:14px;color:var(--c-text-weak);line-height:1.7;margin-bottom:0}
.tips-meta{
    display:flex;
    align-items:center;
    gap:14px;
    font-size:12px;
    color:var(--c-text-weak);
    flex-shrink:0;
}
.tips-meta .tag{
    font-weight:600;
    color:var(--c-primary);
    background:var(--c-primary-light);
    padding:4px 12px;
    border-radius:999px;
}

/* ===== FAQ ===== */
.faq-wrap{
    max-width:820px;
    margin:0 auto;
}
.faq-item{
    background:var(--c-card);
    border:1px solid var(--c-border);
    border-radius:var(--radius-md);
    margin-bottom:14px;
    overflow:hidden;
    transition:box-shadow .3s ease;
}
.faq-item:hover{box-shadow:var(--shadow-sm)}
.faq-item.open{border-color:var(--c-primary);box-shadow:var(--shadow-sm)}
.faq-question{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:20px 24px;
    cursor:pointer;
    font-size:16px;
    font-weight:600;
    color:var(--c-text);
    transition:color .2s;
    user-select:none;
}
.faq-question:hover{color:var(--c-primary)}
.faq-question .faq-icon{
    width:32px;height:32px;
    border-radius:50%;
    background:var(--c-bg);
    border:1px solid var(--c-border);
    display:flex;align-items:center;justify-content:center;
    font-size:14px;
    color:var(--c-text-weak);
    flex-shrink:0;
    transition:all .3s ease;
}
.faq-item.open .faq-icon{
    background:var(--c-primary);
    border-color:var(--c-primary);
    color:#fff;
    transform:rotate(45deg);
}
.faq-answer{
    max-height:0;
    overflow:hidden;
    transition:max-height .4s ease;
}
.faq-answer-inner{
    padding:0 24px 22px;
    font-size:14px;
    color:var(--c-text-weak);
    line-height:1.85;
}
.faq-answer-inner a{color:var(--c-primary);font-weight:600}

/* ===== CTA ===== */
.cta-section{
    padding:clamp(60px,8vw,90px) 0;
    background:var(--c-card);
    border-top:1px solid var(--c-border);
}
.cta-box{
    background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
    border-radius:28px;
    padding:clamp(30px,5vw,60px);
    position:relative;
    overflow:hidden;
    color:#fff;
    text-align:center;
    box-shadow:var(--shadow-lg);
}
.cta-box:before{
    content:'';
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;
    background-position:center;
    opacity:.16;
}
.cta-box:after{
    content:'';
    position:absolute;
    width:300px;height:300px;
    background:radial-gradient(circle,rgba(255,255,255,.18),transparent 70%);
    top:-120px;right:-80px;
    border-radius:50%;
}
.cta-content{position:relative;z-index:2}
.cta-content h2{font-size:clamp(24px,3.5vw,36px);font-weight:900;margin-bottom:14px;letter-spacing:-.5px}
.cta-content p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.85);max-width:560px;margin:0 auto 30px}
.cta-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

/* ===== Sidebar / Related ===== */
.related-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:20px;
}
.related-card{
    background:var(--c-card);
    border-radius:var(--radius-md);
    padding:22px;
    border:1px solid var(--c-border);
    transition:all .3s ease;
}
.related-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-md);
    border-color:var(--c-primary);
}
.related-card .r-icon{
    width:42px;height:42px;
    border-radius:12px;
    background:var(--c-primary-light);
    color:var(--c-primary);
    display:flex;align-items:center;justify-content:center;
    font-size:17px;
    margin-bottom:14px;
}
.related-card h3{font-size:15px;font-weight:700;margin-bottom:6px;line-height:1.5}
.related-card p{font-size:13px;color:var(--c-text-weak);line-height:1.6;margin:0}

/* ===== Footer ===== */
.site-footer{
    background:var(--c-dark);
    color:rgba(255,255,255,.75);
    padding:64px 0 28px;
    position:relative;
}
.site-footer:before{
    content:'';
    position:absolute;
    top:0;left:0;right:0;
    height:3px;
    background:linear-gradient(90deg,var(--c-primary),var(--c-accent),var(--c-primary));
}
.footer-grid{
    display:flex;
    justify-content:space-between;
    gap:40px;
    margin-bottom:44px;
    flex-wrap:wrap;
}
.footer-brand{max-width:360px}
.footer-logo{
    font-size:22px;
    font-weight:900;
    color:#fff;
    display:inline-flex;
    align-items:center;
    gap:8px;
    margin-bottom:14px;
}
.footer-logo i{
    width:32px;height:32px;
    border-radius:9px;
    background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
    display:flex;align-items:center;justify-content:center;
    font-size:14px;
    color:#fff;
}
.footer-brand p{
    font-size:14px;
    line-height:1.8;
    color:rgba(255,255,255,.55);
    margin:0;
}
.footer-links{
    display:flex;
    flex-direction:column;
    gap:12px;
    min-width:220px;
}
.footer-links .footer-title{
    font-size:15px;
    font-weight:700;
    color:#fff;
    margin-bottom:2px;
}
.footer-links a{
    font-size:14px;
    color:rgba(255,255,255,.65);
    transition:color .2s,transform .2s;
    display:inline-flex;
    align-items:center;
    gap:8px;
}
.footer-links a:hover{color:#fff;transform:translateX(4px)}
.copyright{
    display:flex;
    align-items:center;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:10px;
    padding-top:24px;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;
    color:rgba(255,255,255,.45);
}
.disclaimer{font-size:12px;opacity:.7}

/* ===== Responsive ===== */
@media (min-width:1024px){
    .article-grid{grid-template-columns:repeat(3,1fr)}
    .related-grid{grid-template-columns:repeat(4,1fr)}
    .steps-grid{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:1023.98px){
    .article-grid{grid-template-columns:repeat(2,1fr)}
    .related-grid{grid-template-columns:repeat(2,1fr)}
    .steps-grid{grid-template-columns:repeat(2,1fr)}
    .topic-grid{grid-template-columns:1fr}
    .split-row{grid-template-columns:1fr;gap:40px}
    .header-inner{gap:12px}
}
@media (max-width:767.98px){
    .site-header{
        position:relative;
        background:#fff;
        backdrop-filter:none;
        border-bottom:1px solid var(--c-border);
    }
    .header-inner{
        flex-wrap:wrap;
        height:auto;
        padding:14px 0;
        gap:10px;
    }
    .logo{width:100%;justify-content:center}
    .main-nav{
        width:100%;
        overflow-x:auto;
        gap:4px;
        padding:5px;
        justify-content:flex-start;
        margin:0;
        -webkit-overflow-scrolling:touch;
        scrollbar-width:none;
    }
    .main-nav::-webkit-scrollbar{display:none}
    .main-nav .nav-link{
        padding:8px 16px;
        font-size:13px;
        white-space:nowrap;
        flex-shrink:0;
    }
    .header-cta{
        width:100%;
        justify-content:center;
    }
    .header-cta.btn{
        width:100%;
        max-width:260px;
        margin:0 auto;
    }
    .category-hero{padding:60px 0 50px}
    .hero-meta{gap:12px;flex-direction:column;align-items:flex-start}
    .article-grid{grid-template-columns:1fr;gap:20px}
    .related-grid{grid-template-columns:1fr;gap:14px}
    .steps-grid{grid-template-columns:1fr;gap:16px}
    .tips-item{flex-wrap:wrap;padding:18px 20px}
    .tips-meta{width:100%;padding-left:54px}
    .cta-btns .btn{width:100%;max-width:280px}
    .footer-grid{flex-direction:column;gap:28px}
    .copyright{flex-direction:column;text-align:center}
}
@media (max-width:520px){
    .topic-card{flex-direction:column;padding:22px}
    .split-content h2{font-size:24px}
    .faq-question{font-size:15px;padding:16px 18px}
    .faq-answer-inner{padding:0 18px 18px}
    .card-body{padding:18px}
}