/* roulang page: index */
:root {
            --primary: #c9a961;
            --primary-dark: #b08d3e;
            --primary-light: #e8c97a;
            --secondary: #5b6ec7;
            --bg-deep: #080d1c;
            --bg-dark: #0f1428;
            --bg-card: #141b36;
            --bg-card-2: #1a2342;
            --bg-nav: rgba(10, 14, 31, 0.72);
            --border: #232f4f;
            --border-light: #31406a;
            --text: #eef1f8;
            --text-muted: #a5b0cf;
            --text-dim: #6b7799;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 18px 46px rgba(0, 0, 0, 0.5);
            --transition: all 0.3s ease;
            --font-family: "PingFang SC", "Hiragino Sans GB", "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-family);
            background: var(--bg-deep);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
            border-radius: var(--radius-sm);
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(201, 169, 97, 0.65);
            outline-offset: 2px;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ==== Header / Nav ==== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: transparent;
            transition: var(--transition);
            padding: 18px 0;
            border-bottom: 1px solid transparent;
        }
        .site-header.scrolled {
            background: var(--bg-nav);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            padding: 12px 0;
            border-bottom: 1px solid rgba(201, 169, 97, 0.12);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .brand {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            white-space: nowrap;
            position: relative;
            z-index: 2;
            flex-shrink: 0;
        }
        .brand:hover {
            opacity: 0.9;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin-left: auto;
            flex: 0 1 auto;
            justify-content: flex-end;
        }
        .site-nav a {
            font-size: 15px;
            font-weight: 500;
            color: rgba(238, 241, 248, 0.82);
            padding: 8px 4px;
            position: relative;
            letter-spacing: 0.3px;
            transition: var(--transition);
        }
        .site-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--primary-light), var(--primary));
            transition: var(--transition);
        }
        .site-nav a:hover {
            color: #fff;
        }
        .site-nav a:hover::after,
        .site-nav a.active::after {
            width: 100%;
        }
        .site-nav a.active {
            color: var(--primary-light);
        }
        .header-actions {
            margin-left: 16px;
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            z-index: 3;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            border-radius: 4px;
            background: var(--text);
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ==== Buttons ==== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            border: 1px solid transparent;
            cursor: pointer;
            line-height: 1.4;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: linear-gradient(135deg, #e8c97a 0%, #b08d3e 100%);
            color: #0a0e1f;
            box-shadow: 0 6px 20px rgba(201, 169, 97, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(201, 169, 97, 0.42);
            color: #0a0e1f;
        }
        .btn-ghost {
            border-color: rgba(238, 241, 248, 0.3);
            color: var(--text);
            background: rgba(255, 255, 255, 0.04);
        }
        .btn-ghost:hover {
            border-color: rgba(238, 241, 248, 0.6);
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .btn-lg {
            padding: 16px 38px;
            font-size: 16px;
        }
        .btn-sm {
            padding: 9px 22px;
            font-size: 14px;
        }
        .btn i {
            font-size: 14px;
        }

        /* ==== Section common ==== */
        .section {
            padding: 96px 0;
        }
        .section-alt {
            background: var(--bg-dark);
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary-light);
            background: rgba(201, 169, 97, 0.12);
            border: 1px solid rgba(201, 169, 97, 0.28);
            padding: 6px 18px;
            border-radius: 40px;
            margin-bottom: 18px;
        }
        .section-head h2 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 14px;
            color: var(--text);
            letter-spacing: 0.5px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ==== Hero ==== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8, 13, 28, 0.95) 0%, rgba(12, 18, 38, 0.84) 50%, rgba(8, 13, 28, 0.65) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 130px 24px 70px;
            width: 100%;
        }
        .hero-inner {
            max-width: 730px;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--primary-light);
            background: rgba(201, 169, 97, 0.1);
            border: 1px solid rgba(201, 169, 97, 0.28);
            padding: 8px 20px;
            border-radius: 40px;
            margin-bottom: 28px;
        }
        .hero h1 {
            font-size: 52px;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: 1px;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #ffffff 0%, #d9d6ff 40%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 18px;
            line-height: 1.9;
            color: rgba(238, 241, 248, 0.85);
            margin-bottom: 36px;
            max-width: 620px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 56px;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 44px;
            border-top: 1px solid rgba(238, 241, 248, 0.12);
            padding-top: 30px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat strong {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary-light);
        }
        .hero-stat span {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 1px;
        }

        /* ==== Service Cards ==== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .service-card {
            background: linear-gradient(165deg, var(--bg-card), rgba(20, 27, 54, 0.7));
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 38px 28px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: 0;
            transition: var(--transition);
        }
        .service-card:hover {
            border-color: var(--border-light);
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-icon {
            width: 68px;
            height: 68px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 22px;
            font-size: 26px;
            color: var(--primary-light);
            background: rgba(201, 169, 97, 0.12);
            border: 1px solid rgba(201, 169, 97, 0.25);
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* ==== Data Section ==== */
        .data-section {
            position: relative;
            background: var(--bg-dark);
            padding: 80px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .data-item strong {
            display: block;
            font-size: 42px;
            font-weight: 900;
            color: var(--primary-light);
            line-height: 1.2;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .data-item span {
            font-size: 14px;
            color: var(--text-muted);
            letter-spacing: 1px;
            margin-top: 4px;
            display: block;
        }

        /* ==== Category Cards ==== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .cat-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
        }
        .cat-card:hover {
            transform: translateY(-8px);
            border-color: rgba(201, 169, 97, 0.4);
            box-shadow: var(--shadow-hover);
        }
        .cat-card-img {
            position: relative;
            height: 210px;
            overflow: hidden;
        }
        .cat-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .cat-card:hover .cat-card-img img {
            transform: scale(1.05);
        }
        .cat-card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 45%, rgba(8, 13, 28, 0.85) 100%);
        }
        .cat-card-body {
            padding: 26px 26px 30px;
        }
        .cat-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .cat-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 16px;
            min-height: 48px;
        }
        .cat-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-light);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cat-link:hover {
            gap: 12px;
            color: #fff;
        }

        /* ==== News Section ==== */
        .news-section {
            background: var(--bg-deep);
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-hover);
        }
        .news-card-media {
            position: relative;
            height: 190px;
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }
        .news-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .news-card:hover .news-card-media img {
            transform: scale(1.04);
        }
        .news-cat-badge {
            position: absolute;
            left: 14px;
            top: 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-light);
            background: rgba(8, 13, 28, 0.75);
            border: 1px solid rgba(201, 169, 97, 0.3);
            padding: 4px 14px;
            border-radius: 30px;
            backdrop-filter: blur(6px);
        }
        .news-card-body {
            padding: 22px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .news-card-body h3 a {
            color: var(--text);
        }
        .news-card-body h3 a:hover {
            color: var(--primary-light);
        }
        .news-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 16px;
            font-size: 13px;
            color: var(--text-dim);
        }
        .news-meta i {
            margin-right: 5px;
        }
        .read-more {
            font-weight: 600;
            color: var(--primary-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
        }
        .read-more:hover {
            color: #fff;
            gap: 10px;
        }
        .empty-state {
            text-align: center;
            padding: 70px 20px;
            background: var(--bg-card);
            border: 1px dashed var(--border-light);
            border-radius: var(--radius);
            max-width: 560px;
            margin: 0 auto;
        }
        .empty-state i {
            font-size: 40px;
            color: var(--text-dim);
            margin-bottom: 14px;
        }
        .empty-state p {
            color: var(--text-muted);
        }

        /* ==== Steps / Timeline ==== */
        .steps-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step-counter;
        }
        .step-item {
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 40px 26px 30px;
            text-align: center;
            transition: var(--transition);
            counter-increment: step-counter;
        }
        .step-item:hover {
            border-color: rgba(201, 169, 97, 0.4);
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 18px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            color: #0a0e1f;
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 22px;
            box-shadow: 0 8px 20px rgba(201, 169, 97, 0.3);
        }
        .step-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ==== Feature Highlight ==== */
        .feature-block {
            border-radius: 24px;
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border);
            display: grid;
            grid-template-columns: 1fr 1fr;
        }
        .feature-media {
            position: relative;
            min-height: 360px;
        }
        .feature-media img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .feature-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, transparent 30%, rgba(20, 27, 54, 0.85) 100%);
        }
        .feature-content {
            padding: 56px 48px;
        }
        .feature-content h3 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.4;
            margin-bottom: 18px;
        }
        .feature-content p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 24px;
        }
        .feature-list {
            list-style: none;
            margin: 0 0 30px;
            padding: 0;
        }
        .feature-list li {
            padding: 9px 0;
            font-size: 14px;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feature-list li i {
            color: var(--primary-light);
            font-size: 15px;
        }

        /* ==== FAQ ==== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.active {
            border-color: rgba(201, 169, 97, 0.4);
            box-shadow: var(--shadow);
        }
        .faq-question {
            width: 100%;
            padding: 22px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            text-align: left;
            color: var(--text);
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question i {
            font-size: 15px;
            color: var(--primary-light);
            transition: transform 0.4s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer p {
            padding: 0 28px 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.85;
        }

        /* ==== CTA ==== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8, 13, 28, 0.92) 0%, rgba(15, 20, 40, 0.8) 100%);
            z-index: 1;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-content .section-tag {
            margin-bottom: 20px;
        }
        .cta-content h2 {
            font-size: 38px;
            font-weight: 900;
            line-height: 1.3;
            margin-bottom: 18px;
        }
        .cta-content p {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 36px;
            line-height: 1.85;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ==== Footer ==== */
        .site-footer {
            background: var(--bg-dark);
            padding: 60px 0 30px;
            border-top: 1px solid var(--border);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 44px;
            margin-bottom: 44px;
        }
        .footer-brand .brand {
            font-size: 24px;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.85;
            max-width: 360px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text);
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 26px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: var(--text-dim);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ==== Responsive ==== */
        @media (max-width: 1024px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-wrap {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .feature-block {
                grid-template-columns: 1fr;
            }
            .feature-media {
                min-height: 260px;
            }
            .feature-media::after {
                background: linear-gradient(180deg, transparent 30%, rgba(20, 27, 54, 0.85) 100%);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .hero h1 {
                font-size: 36px;
            }
            .hero-desc {
                font-size: 16px;
            }
            .hero-content {
                padding-top: 120px;
            }
            .nav-toggle {
                display: flex;
            }
            .site-nav {
                position: fixed;
                top: 0;
                right: 0;
                bottom: 0;
                width: min(80vw, 340px);
                background: var(--bg-dark);
                border-left: 1px solid var(--border);
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 100px 36px 40px;
                transform: translateX(100%);
                transition: transform 0.35s ease;
                margin: 0;
                box-shadow: -20px 0 50px rgba(0, 0, 0, 0.4);
                z-index: 2;
                overflow-y: auto;
            }
            .site-nav.open {
                transform: translateX(0);
            }
            .site-nav a {
                font-size: 18px;
                padding: 12px 0;
                width: 100%;
            }
            .site-nav a::after {
                display: none;
            }
            .header-actions {
                margin-left: auto;
            }
            .header-actions .btn-sm {
                display: none;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .cat-grid {
                grid-template-columns: 1fr;
            }
            .steps-wrap {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
            }
            .data-item strong {
                font-size: 32px;
            }
            .cta-content h2 {
                font-size: 30px;
            }
            .cta-content p {
                font-size: 15px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-stats {
                gap: 16px 28px;
            }
            .hero-stat strong {
                font-size: 22px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }
            .section {
                padding: 52px 0;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .section-head p {
                font-size: 14px;
            }
            .hero {
                min-height: auto;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 14px;
            }
            .data-grid {
                grid-template-columns: 1fr;
            }
            .service-card {
                padding: 28px 22px;
            }
            .cat-card-img {
                height: 170px;
            }
            .feature-content {
                padding: 30px 22px;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 15px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-actions .btn {
                justify-content: center;
            }
            .brand {
                font-size: 18px;
            }
            .faq-question {
                font-size: 15px;
                padding: 18px 20px;
            }
            .footer-bottom {
                font-size: 12px;
                line-height: 1.8;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #4f8dff;
            --primary-light: #7aadff;
            --primary-dark: #2463d8;
            --accent: #19d3bb;
            --accent-light: #53e8cf;
            --bg: #0b1220;
            --bg-elevated: #101b2d;
            --bg-card: #151f33;
            --bg-card-hover: #1b2a44;
            --text-main: #eef3ff;
            --text-body: #c1cbe0;
            --text-muted: #8b9bb8;
            --border: rgba(255, 255, 255, 0.09);
            --border-light: rgba(255, 255, 255, 0.16);
            --radius: 18px;
            --radius-sm: 12px;
            --radius-lg: 28px;
            --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
            --shadow-hover: 0 24px 70px rgba(0, 0, 0, 0.55);
            --transition: all 0.3s ease;
            --space: 110px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
            outline: none;
            border: none;
        }

        ul {
            list-style: none;
        }

        .grid-container {
            max-width: 1220px;
            width: 100%;
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 60px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 18px;
            padding: 8px 18px;
            border: 1px solid rgba(25, 211, 187, 0.3);
            border-radius: 40px;
            background: rgba(25, 211, 187, 0.06);
        }

        .section-title {
            font-size: clamp(28px, 4vw, 42px);
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: 60px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            line-height: 1.4;
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            box-shadow: 0 8px 32px rgba(79, 141, 255, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 44px rgba(79, 141, 255, 0.5);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            border-color: var(--border-light);
            color: var(--text-main);
            backdrop-filter: blur(6px);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background: rgba(79, 141, 255, 0.1);
            color: var(--text-main);
        }

        .btn-sm {
            padding: 9px 22px;
            font-size: 14px;
        }

        .btn-light {
            background: #fff;
            color: var(--primary-dark);
        }

        .btn-light:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 0;
            background: rgba(11, 18, 32, 0.6);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(11, 18, 32, 0.92);
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
            padding: 12px 0;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            min-height: 44px;
        }

        .brand {
            font-size: 21px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--text-main);
            background: linear-gradient(135deg, #fff 0%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            white-space: nowrap;
            flex-shrink: 0;
        }

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

        .site-nav a {
            padding: 10px 20px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
        }

        .site-nav a:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.08);
        }

        .site-nav a.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(79, 141, 255, 0.95), rgba(36, 99, 216, 0.95));
            box-shadow: 0 6px 20px rgba(79, 141, 255, 0.3);
        }

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

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            padding: 8px;
            border-radius: 8px;
            cursor: pointer;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            padding: 190px 0 140px;
            background-position: center;
            background-size: cover;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.82) 0%, rgba(11, 18, 32, 0.65) 45%, var(--bg) 100%);
            z-index: 1;
        }

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

        .hero-content {
            max-width: 820px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 22px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--accent-light);
            border: 1px solid rgba(83, 232, 207, 0.4);
            background: rgba(25, 211, 187, 0.1);
            backdrop-filter: blur(8px);
            margin-bottom: 26px;
        }

        .hero-content h1 {
            font-size: clamp(32px, 5.2vw, 56px);
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 22px;
        }

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

        .hero-content p {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-body);
            max-width: 640px;
            margin-bottom: 38px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 56px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

        .stat strong {
            display: block;
            font-size: 34px;
            font-weight: 800;
            background: linear-gradient(135deg, #fff 0%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }

        .stat span {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ===== 板块通用 ===== */
        .section-block {
            background: var(--bg);
        }

        .section-block.alt {
            background: var(--bg-elevated);
        }

        .section-block.alt::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 20% 0%, rgba(79, 141, 255, 0.08), transparent 45%);
            pointer-events: none;
        }

        /* ===== 引导卡片 ===== */
        .guide-cards {
            padding-top: var(--space);
        }

        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }

        .guide-card .card-cover {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .guide-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .guide-card .card-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0) 30%, rgba(11, 18, 32, 0.55) 100%);
        }

        .card-body {
            padding: 26px 28px 30px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-badge {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(79, 141, 255, 0.15);
            border: 1px solid rgba(79, 141, 255, 0.25);
            color: var(--primary-light);
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            align-self: flex-start;
        }

        .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .card-body p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 20px;
            flex: 1;
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .card-link:hover {
            color: var(--accent-light);
            gap: 12px;
        }

        /* ===== 最新指南列表 ===== */
        .guide-list-wrap {
            background: var(--bg-elevated);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .guide-item {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            padding: 30px 34px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
        }

        .guide-item:last-child {
            border-bottom: 0;
        }

        .guide-item:hover {
            background: rgba(255, 255, 255, 0.03);
            padding-left: 42px;
        }

        .guide-badge {
            padding: 5px 16px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(25, 211, 187, 0.1);
            color: var(--accent);
            border: 1px solid rgba(25, 211, 187, 0.22);
            flex-shrink: 0;
        }

        .guide-item h3 {
            font-size: 18px;
            font-weight: 600;
            flex: 1;
            min-width: 260px;
            line-height: 1.5;
        }

        .guide-item h3 a:hover {
            color: var(--primary-light);
        }

        .guide-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            font-size: 13px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .guide-meta i {
            margin-right: 6px;
            font-size: 12px;
        }

        .guide-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .guide-link:hover {
            color: var(--accent);
        }

        /* ===== 上手流程 ===== */
        .steps-section {
            background: var(--bg-elevated);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 20px;
        }

        .step-card {
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 38px 30px 32px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }

        .step-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(79, 141, 255, 0.35);
        }

        .step-num {
            width: 56px;
            height: 56px;
            margin: 0 auto 24px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            box-shadow: 0 10px 28px rgba(79, 141, 255, 0.3);
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
        }

        .step-arrow {
            position: absolute;
            right: -18px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 2;
            color: var(--text-muted);
            font-size: 14px;
        }

        /* ===== 图文区块 ===== */
        .tips-section {
            background: var(--bg);
        }

        .tips-grid {
            display: grid;
            grid-template-columns: 1.05fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .tips-media {
            position: relative;
        }

        .tips-media img {
            border-radius: 24px;
            box-shadow: var(--shadow);
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .tips-media::before {
            content: "";
            position: absolute;
            inset: -20px auto auto -20px;
            width: 160px;
            height: 160px;
            border-radius: 30px;
            background: linear-gradient(135deg, rgba(79, 141, 255, 0.2), transparent);
            z-index: -1;
        }

        .tips-media::after {
            content: "";
            position: absolute;
            inset: auto -20px -20px auto;
            width: 120px;
            height: 120px;
            border-radius: 30px;
            background: linear-gradient(135deg, transparent, rgba(25, 211, 187, 0.2));
            z-index: -1;
        }

        .tips-content h2 {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 20px;
        }

        .tips-content > p {
            font-size: 15px;
            color: var(--text-body);
            margin-bottom: 30px;
            line-height: 1.8;
        }

        .tips-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .tips-list li {
            display: flex;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            transition: var(--transition);
            align-items: flex-start;
        }

        .tips-list li:hover {
            border-color: rgba(79, 141, 255, 0.4);
            transform: translateX(6px);
        }

        .tips-list i {
            font-size: 18px;
            color: var(--accent);
            background: rgba(25, 211, 187, 0.1);
            width: 40px;
            height: 40px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .tips-list h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }

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

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-elevated);
        }

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-light);
        }

        .faq-item.open {
            border-color: rgba(79, 141, 255, 0.4);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 24px 30px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
        }

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

        .faq-question i {
            color: var(--accent);
            transition: var(--transition);
            font-size: 14px;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 30px 26px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 18px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 0;
        }

        .cta-inner {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            padding: 80px 40px;
            background-position: center;
            background-size: cover;
            background-repeat: no-repeat;
            text-align: center;
        }

        .cta-inner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 18, 32, 0.92), rgba(36, 99, 216, 0.65));
            z-index: 1;
        }

        .cta-inner .cta-content {
            position: relative;
            z-index: 2;
            max-width: 620px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: clamp(26px, 4vw, 42px);
            font-weight: 800;
            margin-bottom: 18px;
            line-height: 1.3;
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--text-body);
            margin-bottom: 36px;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #080e1a;
            border-top: 1px solid var(--border);
            padding: 70px 0 30px;
            margin-top: var(--space);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 50px;
            padding-bottom: 46px;
            border-bottom: 1px solid var(--border);
        }

        .footer-brand .brand {
            font-size: 22px;
            margin-bottom: 16px;
            display: inline-block;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 340px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
            color: var(--text-main);
        }

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

        .footer-links a {
            font-size: 14px;
            color: var(--text-body);
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 6px;
        }

        .footer-bottom {
            padding-top: 30px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 900px) {
            :root {
                --space: 80px;
            }

            .site-nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 300px;
                height: 100vh;
                background: rgba(11, 18, 32, 0.98);
                backdrop-filter: blur(24px);
                flex-direction: column;
                justify-content: flex-start;
                padding: 90px 30px 40px;
                transition: right 0.4s ease;
                box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5);
                border-left: 1px solid var(--border);
                z-index: 999;
                gap: 8px;
            }

            .site-nav.open {
                right: 0;
            }

            .site-nav a {
                width: 100%;
                text-align: center;
                padding: 14px 20px;
                font-size: 16px;
            }

            .nav-toggle {
                display: flex;
                z-index: 1001;
            }

            .header-actions {
                margin-left: 0;
            }

            .tips-grid {
                grid-template-columns: 1fr;
                gap: 48px;
            }

            .tips-media img {
                height: 300px;
            }

            .hero-stats {
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .hero-content h1 {
                font-size: 34px;
            }

            .guide-item {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
            }

            .guide-item:hover {
                padding-left: 24px;
            }

            .guide-meta {
                gap: 12px;
            }

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

            .cta-inner {
                padding: 60px 24px;
                border-radius: 20px;
            }

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

            .step-arrow {
                display: none;
            }
        }

        @media (max-width: 520px) {
            :root {
                --space: 64px;
            }

            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }

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

            .category-hero {
                padding: 160px 0 100px;
            }

            .hero-actions {
                flex-direction: column;
            }

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

            .hero-stats {
                flex-direction: column;
                gap: 20px;
            }

            .guide-card .card-cover {
                height: 180px;
            }

            .tips-list li {
                padding: 16px;
            }

            .faq-question {
                padding: 20px;
                font-size: 15px;
            }

            .faq-answer-inner {
                padding: 16px 20px 20px;
            }

            .header-actions .btn-sm {
                display: none;
            }

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

/* roulang page: article */
:root {
            --bg-deep: #070c18;
            --bg-dark: #0b1222;
            --bg-card: #101a30;
            --bg-card-hover: #16223c;
            --primary: #ff6b35;
            --primary-hover: #ff8c5a;
            --primary-glow: rgba(255, 107, 53, 0.35);
            --accent: #00d4ff;
            --accent-dim: rgba(0, 212, 255, 0.1);
            --text-main: #e8edf7;
            --text-sub: #b6c4dd;
            --text-dim: #8ea2c4;
            --border: rgba(139, 164, 208, 0.16);
            --radius-sm: 10px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 60px rgba(0, 0, 0, 0.5);
            --transition: all 0.3s ease;
            --nav-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 88px 0;
        }

        .section-alt {
            background: var(--bg-dark);
        }

        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-dim);
            border: 1px solid rgba(0, 212, 255, 0.2);
            border-radius: 999px;
            padding: 6px 18px;
            margin-bottom: 18px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-dim);
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(7, 12, 24, 0.65);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(139, 164, 208, 0.1);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(7, 12, 24, 0.95);
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 32px;
        }

        .brand {
            font-size: 1.3rem;
            font-weight: 800;
            letter-spacing: 0.01em;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }

        .site-nav a {
            color: var(--text-sub);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: 999px;
            transition: var(--transition);
        }

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

        .site-nav a.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.9), rgba(255, 148, 64, 0.85));
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.3);
        }

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

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            width: 42px;
            height: 42px;
            padding: 8px;
            cursor: pointer;
            z-index: 1002;
            border-radius: 10px;
            transition: var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 100%;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.5;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #ff9340);
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 107, 53, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 36px rgba(255, 107, 53, 0.45);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-outline {
            border-color: rgba(0, 212, 255, 0.5);
            color: var(--accent);
            background: transparent;
        }

        .btn-outline:hover {
            background: var(--accent-dim);
            border-color: var(--accent);
            color: var(--accent);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }

        .btn-block {
            width: 100%;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .text-link:hover {
            color: var(--primary);
            gap: 12px;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-dim);
            border: 1px solid rgba(0, 212, 255, 0.22);
            border-radius: 999px;
            padding: 6px 16px;
            letter-spacing: 0.03em;
        }

        .article-hero {
            position: relative;
            padding: 180px 0 84px;
            background:
                linear-gradient(180deg, rgba(7, 12, 24, 0.82) 0%, rgba(7, 12, 24, 0.92) 100%),
                url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--border);
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(180deg, transparent, var(--bg-deep));
            pointer-events: none;
        }

        .article-hero-inner {
            position: relative;
            z-index: 2;
            max-width: 880px;
            animation: fadeUp 0.7s ease both;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-dim);
            margin-bottom: 28px;
        }

        .breadcrumb a {
            color: var(--text-dim);
            transition: var(--transition);
        }

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

        .breadcrumb-sep {
            color: rgba(139, 164, 208, 0.4);
            font-size: 0.75rem;
        }

        .category-badge {
            margin-bottom: 20px;
        }

        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin: 12px 0 18px;
        }

        .article-hero-desc {
            font-size: 1.1rem;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 28px;
        }

        .article-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
            color: var(--text-dim);
            font-size: 0.9rem;
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .meta-item i {
            color: var(--primary);
            font-size: 0.9rem;
        }

        .article-main {
            padding: 64px 0 88px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 40px;
            align-items: start;
        }

        .article-body-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .article-sidebar {
            position: sticky;
            top: calc(var(--nav-height) + 24px);
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            transition: var(--transition);
        }

        .sidebar-card:hover {
            box-shadow: var(--shadow);
        }

        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 18px;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--border);
            position: relative;
        }

        .sidebar-card h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 36px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .sidebar-info ul li {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px dashed rgba(139, 164, 208, 0.12);
            font-size: 0.9rem;
        }

        .sidebar-info ul li:last-child {
            border-bottom: none;
        }

        .sidebar-info ul li span {
            color: var(--text-dim);
        }

        .sidebar-info ul li strong {
            color: var(--text-main);
            font-weight: 600;
            text-align: right;
        }

        .sidebar-guide p {
            color: var(--text-dim);
            font-size: 0.9rem;
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .article-content {
            font-size: 1.02rem;
            line-height: 1.95;
            color: var(--text-sub);
            word-break: break-word;
        }

        .article-content > *:last-child {
            margin-bottom: 0;
        }

        .article-content p {
            margin-bottom: 1.4em;
        }

        .article-content h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 2em 0 0.8em;
            padding-bottom: 0.5em;
            border-bottom: 1px solid var(--border);
            position: relative;
        }

        .article-content h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 56px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }

        .article-content h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: var(--text-main);
            margin: 1.6em 0 0.6em;
        }

        .article-content h4 {
            font-size: 1.12rem;
            font-weight: 600;
            color: var(--text-main);
            margin: 1.4em 0 0.5em;
        }

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

        .article-content a:hover {
            color: var(--primary);
        }

        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: 1.6em 0;
            box-shadow: var(--shadow);
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.4em;
            padding-left: 1.4em;
        }

        .article-content ul li,
        .article-content ol li {
            margin-bottom: 0.5em;
        }

        .article-content ul li::marker {
            color: var(--primary);
        }

        .article-content ol li::marker {
            color: var(--accent);
            font-weight: 600;
        }

        .article-content blockquote {
            border-left: 3px solid var(--primary);
            background: rgba(255, 107, 53, 0.06);
            padding: 1em 1.4em;
            margin: 1.6em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-sub);
        }

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

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.4em 0;
            font-size: 0.92rem;
        }

        .article-content table th {
            background: var(--bg-dark);
            color: var(--text-main);
            font-weight: 600;
            padding: 12px 14px;
            border: 1px solid var(--border);
            text-align: left;
        }

        .article-content table td {
            padding: 12px 14px;
            border: 1px solid var(--border);
        }

        .article-content table tr:nth-child(even) td {
            background: rgba(16, 26, 48, 0.4);
        }

        .article-content code {
            background: var(--accent-dim);
            color: var(--accent);
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 0.9em;
        }

        .article-content pre {
            background: var(--bg-dark);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 20px;
            overflow-x: auto;
            margin: 1.4em 0;
        }

        .article-content pre code {
            background: none;
            padding: 0;
            color: var(--text-sub);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .not-found {
            text-align: center;
            padding: 60px 24px;
        }

        .not-found-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 72px;
            height: 72px;
            border-radius: 50%;
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            background: rgba(255, 107, 53, 0.12);
            border: 1px solid rgba(255, 107, 53, 0.3);
            margin-bottom: 24px;
        }

        .not-found h2 {
            font-size: 1.6rem;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .not-found p {
            color: var(--text-dim);
            margin-bottom: 28px;
        }

        .info-cards-section {
            padding: 88px 0;
            background: var(--bg-dark);
        }

        .info-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .info-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .info-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .info-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(139, 164, 208, 0.3);
        }

        .info-card:hover::before {
            opacity: 1;
        }

        .info-card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            border-radius: 16px;
            font-size: 1.4rem;
            background: var(--accent-dim);
            color: var(--accent);
            margin-bottom: 22px;
            border: 1px solid rgba(0, 212, 255, 0.2);
            transition: var(--transition);
        }

        .info-card:hover .info-card-icon {
            background: rgba(255, 107, 53, 0.15);
            color: var(--primary);
            border-color: rgba(255, 107, 53, 0.25);
        }

        .info-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .info-card p {
            color: var(--text-dim);
            font-size: 0.95rem;
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .related-section {
            padding: 88px 0;
            background: var(--bg-deep);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .post-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }

        .post-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(139, 164, 208, 0.3);
        }

        .post-card-link {
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

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

        .post-card:hover .post-cover img {
            transform: scale(1.05);
        }

        .post-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(7, 12, 24, 0.6));
        }

        .post-category-badge {
            position: absolute;
            bottom: 14px;
            left: 14px;
            z-index: 2;
            font-size: 0.75rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), #ff9340);
            border-radius: 999px;
            padding: 5px 14px;
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
        }

        .post-body {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .post-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.3s;
        }

        .post-card:hover .post-body h3 {
            color: var(--accent);
        }

        .post-body p {
            font-size: 0.88rem;
            color: var(--text-dim);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
            flex: 1;
        }

        .post-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            color: var(--text-dim);
            font-size: 0.78rem;
        }

        .empty-tip {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px;
            color: var(--text-dim);
            background: var(--bg-card);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
        }

        .faq-section {
            padding: 88px 0;
            background: var(--bg-dark);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(139, 164, 208, 0.28);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 28px;
            font-size: 1.02rem;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            text-align: left;
            transition: var(--transition);
        }

        .faq-question i {
            color: var(--accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            font-size: 0.85rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 28px;
        }

        .faq-item.open .faq-answer {
            max-height: 320px;
            padding: 18px 28px 24px;
        }

        .faq-answer p {
            color: var(--text-dim);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .cta-section-wrap {
            padding: 72px 0;
            background: var(--bg-deep);
        }

        .cta-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            padding: 48px 56px;
            background:
                linear-gradient(135deg, rgba(255, 107, 53, 0.14), rgba(0, 212, 255, 0.08)),
                var(--bg-card);
            border: 1px solid rgba(139, 164, 208, 0.2);
            border-radius: var(--radius-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }

        .cta-content h2 {
            font-size: 1.6rem;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .cta-content p {
            color: var(--text-dim);
            font-size: 0.98rem;
            max-width: 560px;
        }

        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
            padding: 64px 0 32px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-brand .brand {
            font-size: 1.3rem;
            margin-bottom: 14px;
            display: inline-block;
        }

        .footer-brand p {
            color: var(--text-dim);
            font-size: 0.92rem;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 20px;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: var(--text-dim);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            text-align: center;
        }

        .footer-bottom p {
            color: var(--text-dim);
            font-size: 0.85rem;
        }

        #news,
        #faq {
            scroll-margin-top: calc(var(--nav-height) + 20px);
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @media (max-width: 1024px) {
            .article-hero {
                padding-top: 150px;
            }

            .article-hero h1 {
                font-size: 2.2rem;
            }

            .article-layout {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
            }

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

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

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .site-nav {
                position: fixed;
                top: var(--nav-height);
                right: 20px;
                left: 20px;
                background: rgba(7, 12, 24, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border: 1px solid var(--border);
                border-radius: var(--radius);
                padding: 16px;
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                transform: translateY(-16px);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                z-index: 1001;
                box-shadow: var(--shadow);
            }

            .site-nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .site-nav a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }

            .header-actions .btn-sm {
                display: none;
            }

            .article-hero {
                padding: 130px 0 56px;
            }

            .article-hero h1 {
                font-size: 1.8rem;
            }

            .article-hero-desc {
                font-size: 1rem;
            }

            .article-body-card {
                padding: 28px 20px;
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }

            .info-cards-grid {
                grid-template-columns: 1fr;
                max-width: 560px;
                margin: 0 auto;
            }

            .section-header h2 {
                font-size: 1.7rem;
            }

            .cta-box {
                flex-direction: column;
                text-align: center;
                padding: 36px 24px;
            }

            .cta-content p {
                max-width: 100%;
            }

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

        @media (max-width: 520px) {
            .section,
            .info-cards-section,
            .related-section,
            .faq-section {
                padding: 64px 0;
            }

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

            .breadcrumb {
                font-size: 0.78rem;
            }

            .article-hero-meta {
                flex-direction: column;
                gap: 12px;
            }

            .faq-question {
                padding: 18px 20px;
                font-size: 0.95rem;
            }

            .faq-item.open .faq-answer {
                padding: 14px 20px 20px;
            }

            .footer-bottom p {
                font-size: 0.78rem;
            }
        }