/* roulang page: index */
:root {
            --primary: #1B3A3B;
            --primary-dark: #122525;
            --accent: #E8590C;
            --accent-dark: #C64D08;
            --secondary: #EAF0EC;
            --page-bg: #F7F8F5;
            --card-bg: #FFFFFF;
            --text-main: #22261F;
            --text-muted: #5B625B;
            --border-color: #DDE3DE;
            --dark-bg: #112222;
            --footer-text: #D5DDD9;
            --radius-sm: 4px;
            --radius-md: 8px;
            --shadow-sm: 0 2px 8px rgba(17, 34, 34, 0.06);
            --shadow-hover: 0 8px 24px rgba(17, 34, 34, 0.10);
            --shadow-nav: 0 1px 4px rgba(0, 0, 0, 0.04);
            --container: 1240px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--page-bg);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        img {
            max-width: 100%;
            height: auto;
            background-color: var(--secondary);
            display: block;
        }

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

        button {
            cursor: pointer;
            background: none;
        }

        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: var(--shadow-nav);
            height: 64px;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--primary) 60%, var(--accent) 60%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            line-height: 1;
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            position: relative;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 4px;
            transition: color .2s, background .2s;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(27, 58, 59, 0.04);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .search-box {
            display: flex;
            align-items: center;
            background: #F2F4F1;
            border-radius: var(--radius-sm);
            padding: 0 10px;
            height: 36px;
            width: 180px;
            border: 1px solid transparent;
            transition: border-color .2s, box-shadow .2s;
        }

        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(232, 89, 12, 0.12);
        }

        .search-box svg {
            width: 14px;
            height: 14px;
            color: var(--text-muted);
            flex-shrink: 0;
            margin-right: 6px;
        }

        .search-box input {
            border: none;
            background: transparent;
            width: 100%;
            font-size: 13px;
            color: var(--text-main);
        }

        .search-box input::placeholder {
            color: #9AA39A;
        }

        .search-box input:focus {
            outline: none;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-weight: 600;
            padding: 10px 20px;
            font-size: 14px;
            line-height: 1.4;
            transition: background .2s, transform .15s, box-shadow .2s, border-color .2s;
            white-space: nowrap;
        }

        .btn:active {
            transform: scale(0.98);
        }

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

        .btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(232, 89, 12, 0.25);
        }

        .btn-secondary {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-secondary:hover {
            background: var(--secondary);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 6px;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
        }

        .menu-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform .3s, opacity .3s;
        }

        .menu-toggle.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }

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

        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        /* ===== Hero ====== */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(0, 0, 0, 0.62) 0%, rgba(0, 0, 0, 0.45) 55%, rgba(0, 0, 0, 0.15) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            padding: 48px 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border-radius: var(--radius-sm);
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 24px;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: #E53935;
            border-radius: 50%;
            display: inline-block;
            animation: pulse 1.6s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        .hero-title {
            font-size: clamp(32px, 4.2vw, 44px);
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .hero-subtitle {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 560px;
        }

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

        .hero-buttons .btn-secondary {
            background: rgba(255, 255, 255, 0.92);
            border-color: transparent;
            color: var(--primary);
        }

        .hero-buttons .btn-secondary:hover {
            background: #fff;
            color: var(--primary-dark);
        }

        /* ===== Countdown ===== */
        .countdown-section {
            margin-top: -40px;
            position: relative;
            z-index: 5;
        }

        .countdown-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-hover);
            padding: 24px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            border: 1px solid rgba(221, 227, 222, 0.6);
        }

        .countdown-grid {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .countdown-item {
            background: var(--secondary);
            border-radius: var(--radius-sm);
            padding: 10px 16px;
            min-width: 76px;
            text-align: center;
        }

        .countdown-num {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            letter-spacing: 0.02em;
        }

        .countdown-unit {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 2px;
            display: block;
        }

        .countdown-sep {
            font-size: 20px;
            font-weight: 700;
            color: var(--border-color);
        }

        .countdown-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-right: 8px;
            font-weight: 500;
        }

        /* ===== Section Shared ===== */
        .section {
            padding: 80px 0;
        }

        .section-tight {
            padding: 48px 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            position: relative;
            padding-left: 16px;
        }

        .section-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-sub {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 420px;
            line-height: 1.6;
        }

        .section-link {
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

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

        .section-link svg {
            width: 14px;
            height: 14px;
        }

        /* ===== Highlights ===== */
        .highlights-list {
            border-top: 1px solid var(--border-color);
        }

        .highlight-item {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            padding: 26px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .highlight-num {
            font-size: 20px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            min-width: 36px;
            font-variant-numeric: tabular-nums;
        }

        .highlight-body {
            flex: 1;
        }

        .highlight-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .highlight-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Subscribe ===== */
        .subscribe-section {
            background: var(--secondary);
            padding: 48px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .subscribe-inner {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .subscribe-tip {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.06em;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .subscribe-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .subscribe-form {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            width: 280px;
            height: 42px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            background: #fff;
            padding: 0 16px;
            font-size: 14px;
            color: var(--text-main);
            transition: border-color .2s, box-shadow .2s;
        }

        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(232, 89, 12, 0.12);
            outline: none;
        }

        .subscribe-form input::placeholder {
            color: #9AA39A;
        }

        .privacy-note {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 12px;
            opacity: 0.8;
        }

        /* ===== Replay ===== */
        .replay-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .replay-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: box-shadow .25s, transform .25s;
        }

        .replay-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .replay-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--secondary);
        }

        .replay-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s;
        }

        .replay-card:hover .replay-thumb img {
            transform: scale(1.03);
        }

        .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 52px;
            height: 52px;
            background: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 4px 16px rgba(232, 89, 12, 0.4);
            transition: transform .25s, background .25s;
            z-index: 2;
        }

        .play-btn svg {
            width: 20px;
            height: 20px;
            margin-left: 3px;
        }

        .play-btn:hover {
            transform: translate(-50%, -50%) scale(1.1);
            background: var(--accent-dark);
        }

        .replay-info {
            padding: 16px 18px;
        }

        .replay-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .replay-date {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== News CMS ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .news-card {
            display: flex;
            gap: 16px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: box-shadow .25s, border-color .25s;
        }

        .news-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .news-thumb {
            width: 120px;
            height: 90px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--secondary);
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .news-tag {
            display: inline-block;
            background: rgba(232, 89, 12, 0.12);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 2px 8px;
            margin-bottom: 8px;
        }

        .news-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.55;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .news-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .empty-state {
            grid-column: 1 / -1;
            height: 160px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--card-bg);
            border: 1px dashed var(--border-color);
            border-radius: var(--radius-md);
            color: var(--text-muted);
            font-size: 15px;
        }

        /* ===== Capability ===== */
        .capability-layout {
            display: grid;
            grid-template-columns: 0.9fr 2fr;
            gap: 64px;
            align-items: center;
        }

        .capability-left .section-title {
            margin-bottom: 12px;
        }

        .capability-left p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .capability-stats {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background: var(--card-bg);
            overflow: hidden;
        }

        .stat-item {
            padding: 28px 32px;
            position: relative;
            border-bottom: 1px solid var(--border-color);
            border-right: 1px solid var(--border-color);
            transition: background .2s;
        }

        .stat-item:nth-child(even) {
            border-right: none;
        }

        .stat-item:nth-child(n+3) {
            border-bottom: none;
        }

        .stat-item:hover {
            background: rgba(234, 240, 236, 0.5);
        }

        .stat-num {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .stat-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background: var(--card-bg);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow .2s;
        }

        .faq-item[open] {
            box-shadow: var(--shadow-sm);
            border-color: rgba(27, 58, 59, 0.3);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 20px;
            cursor: pointer;
            list-style: none;
            user-select: none;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            transition: background .2s;
        }

        .faq-item summary:hover {
            background: rgba(234, 240, 236, 0.4);
        }

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

        .faq-q {
            width: 26px;
            height: 26px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .faq-icon {
            margin-left: auto;
            font-size: 18px;
            color: var(--text-muted);
            line-height: 1;
            transition: transform .25s;
            flex-shrink: 0;
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
        }

        .faq-answer {
            padding: 4px 20px 18px 60px;
            background: var(--secondary);
            border-top: 1px solid var(--border-color);
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background-color: var(--dark-bg);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 80px 0;
            text-align: center;
        }

        .cta-title {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .cta-button {
            height: 50px;
            padding: 0 36px;
            font-size: 16px;
            border-radius: var(--radius-sm);
        }

        .cta-note {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 16px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark-bg);
            color: var(--footer-text);
            padding-top: 60px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .brand-mark {
            background: linear-gradient(135deg, #fff 60%, var(--accent) 60%);
            color: var(--primary);
        }

        .footer-brand-line {
            font-size: 13px;
            color: var(--footer-text);
            opacity: 0.7;
            line-height: 1.6;
            margin-bottom: 20px;
            max-width: 260px;
        }

        .footer-socials {
            display: flex;
            gap: 12px;
        }

        .footer-socials a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--footer-text);
            font-size: 14px;
            transition: border-color .2s, color .2s, background .2s;
        }

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

        .footer-col-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
        }

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

        .footer-links a {
            color: var(--footer-text);
            font-size: 13px;
            opacity: 0.8;
            transition: color .2s, opacity .2s;
        }

        .footer-links a:hover {
            color: var(--accent);
            opacity: 1;
        }

        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 14px;
            font-size: 13px;
            opacity: 0.85;
            line-height: 1.6;
        }

        .footer-contact-item svg {
            width: 16px;
            height: 16px;
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 3px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 13px;
            opacity: 0.6;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== Mobile Nav Drawer ===== */
        .mobile-drawer {
            position: fixed;
            inset: 0;
            background: #fff;
            z-index: 200;
            padding: 24px;
            display: none;
            flex-direction: column;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            display: flex;
        }

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .drawer-close {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--text-main);
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .drawer-nav a {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-main);
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            transition: color .2s;
        }

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

        .drawer-nav a.active {
            color: var(--accent);
        }

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

            .menu-toggle {
                display: flex;
            }

            .search-box {
                width: 140px;
            }

            .hero {
                min-height: 460px;
            }

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

            .capability-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }

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

        @media (max-width: 767px) {
            .section {
                padding: 48px 0;
            }

            .hero {
                min-height: 400px;
            }

            .hero-title {
                font-size: 30px;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .countdown-section {
                margin-top: -24px;
            }

            .countdown-card {
                padding: 20px;
                justify-content: center;
            }

            .countdown-grid {
                justify-content: center;
            }

            .countdown-item {
                min-width: 64px;
                padding: 8px 10px;
            }

            .countdown-num {
                font-size: 24px;
            }

            .countdown-sep {
                display: none;
            }

            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }

            .subscribe-form {
                flex-direction: column;
                align-items: center;
            }

            .subscribe-form input {
                width: 100%;
                max-width: 320px;
            }

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

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

            .news-card {
                flex-direction: column;
            }

            .news-thumb {
                width: 100%;
                height: auto;
                aspect-ratio: 16 / 7;
            }

            .stat-item {
                padding: 20px;
            }

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

            .stat-item:nth-child(even) {
                border-right: none;
            }

            .stat-item:nth-child(3) {
                border-bottom: none;
            }

            .stat-item:nth-child(4) {
                border-bottom: none;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-title {
                font-size: 22px;
            }

            .cta-button {
                width: 100%;
                max-width: 280px;
            }

            .header-actions .btn-sm {
                padding: 8px 12px;
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .search-box {
                display: none;
            }

            .header-actions {
                gap: 8px;
            }

            .brand-text {
                font-size: 16px;
            }

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

            .stat-item {
                border-right: none;
                border-bottom: 1px solid var(--border-color);
            }

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

/* roulang page: category1 */
:root {
            --primary: #1B3A3B;
            --primary-dark: #122525;
            --accent: #E8590C;
            --accent-hover: #C64D08;
            --secondary: #EAF0EC;
            --page-bg: #F7F8F5;
            --card-bg: #FFFFFF;
            --text-main: #22261F;
            --text-sub: #5B625B;
            --border: #DDE3DE;
            --dark-bg: #112222;
            --dark-text: #D5DDD9;
            --radius-sm: 4px;
            --radius-md: 8px;
            --shadow-card: 0 2px 8px rgba(17,34,34,0.06);
            --shadow-hover: 0 8px 24px rgba(17,34,34,0.10);
            --nav-height: 64px;
            --container-width: 1240px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--page-bg);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

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

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 16px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            height: var(--nav-height);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 32px;
            height: 32px;
            border-radius: 4px;
            background: var(--primary);
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid var(--accent);
            line-height: 1;
        }

        .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: #5B625B;
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
            transition: color .2s;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: var(--secondary);
            transform: scaleX(0);
            transition: transform .2s ease, background .2s ease;
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .nav-link:hover::after {
            transform: scaleX(1);
            background: var(--border);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            transform: scaleX(1);
            background: var(--accent);
        }

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

        .search-box {
            width: 180px;
            height: 36px;
            border: 1px solid transparent;
            border-radius: var(--radius-sm);
            background: #F2F4F1;
            padding: 0 12px;
            font-size: 13px;
            color: var(--text-main);
            transition: border-color .2s, background .2s;
        }

        .search-box::placeholder {
            color: #9AA59A;
        }

        .search-box:focus {
            border-color: var(--accent);
            background: #fff;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 9px 20px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background .2s, transform .15s;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            color: #fff;
        }

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

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 9px 20px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background .2s, transform .15s;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: var(--secondary);
            color: var(--primary);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            border-radius: var(--radius-sm);
            cursor: pointer;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
        }

        .mobile-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            transition: transform .25s, opacity .25s;
        }

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

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

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

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 200;
            padding: 72px 24px 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            display: flex;
        }

        .mobile-drawer-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            font-size: 28px;
            color: var(--primary);
            cursor: pointer;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mobile-drawer a {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-main);
            padding: 14px 8px;
            border-bottom: 1px solid var(--border);
            transition: color .2s;
        }

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

        /* ===== Banner Hero ===== */
        .category-banner {
            position: relative;
            background: linear-gradient(120deg, rgba(17,34,34,0.92), rgba(17,34,34,0.35)),
                url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 72px 0 64px;
            color: #fff;
            min-height: 260px;
            display: flex;
            align-items: center;
        }

        .category-banner .banner-content {
            max-width: 680px;
        }

        .category-banner h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .category-banner p {
            font-size: 15px;
            color: rgba(255,255,255,0.88);
            line-height: 1.75;
            margin-bottom: 20px;
            max-width: 560px;
        }

        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .banner-tag {
            background: rgba(255,255,255,0.14);
            border: 1px solid rgba(255,255,255,0.28);
            color: #fff;
            font-size: 12px;
            border-radius: 4px;
            padding: 4px 12px;
            backdrop-filter: blur(4px);
            letter-spacing: 0.02em;
        }

        /* ===== 板块间距 ===== */
        .section-block {
            padding: 72px 0;
        }

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

        .section-title-row {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            margin-bottom: 40px;
            gap: 24px;
            flex-wrap: wrap;
        }

        .section-title-row h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            display: flex;
            align-items: center;
            gap: 12px;
            margin: 0;
        }

        .section-title-row h2::before {
            content: '';
            width: 12px;
            height: 24px;
            border-radius: 2px;
            background: var(--accent);
            flex-shrink: 0;
        }

        .section-sub {
            color: var(--text-sub);
            font-size: 14px;
            max-width: 420px;
            text-align: right;
            line-height: 1.6;
        }

        /* ===== 产品标签筛选 ===== */
        .product-filter {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 48px;
        }

        .filter-tag {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: 4px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            cursor: pointer;
            transition: border-color .2s, color .2s, background .2s, box-shadow .2s;
        }

        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 2px 8px rgba(17,34,34,0.06);
        }

        .filter-tag.active {
            border-color: var(--primary);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .filter-tag .count {
            margin-left: 6px;
            font-size: 12px;
            color: inherit;
            opacity: 0.72;
            background: rgba(0,0,0,0.05);
            border-radius: 10px;
            padding: 1px 8px;
        }

        .filter-tag.active .count {
            background: rgba(255,255,255,0.18);
        }

        /* ===== 产品交错双列 ===== */
        .product-list {
            display: flex;
            flex-direction: column;
            gap: 64px;
        }

        .product-row {
            display: flex;
            align-items: center;
            gap: 48px;
            padding-bottom: 64px;
            border-bottom: 1px solid var(--border);
        }

        .product-row:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .product-row.reverse {
            flex-direction: row-reverse;
        }

        .product-media {
            flex: 0 0 48%;
            aspect-ratio: 3 / 2;
            overflow: hidden;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            background: var(--secondary);
            position: relative;
        }

        .product-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .product-row:hover .product-media img {
            transform: scale(1.02);
        }

        .product-info {
            flex: 1;
        }

        .product-index {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.05em;
            margin-bottom: 6px;
            display: block;
            text-transform: uppercase;
        }

        .product-info h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .product-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .spec-table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 20px;
            max-width: 420px;
        }

        .spec-table td {
            padding: 7px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 13px;
        }

        .spec-table td:first-child {
            color: var(--text-sub);
            width: 120px;
            font-size: 12px;
            letter-spacing: 0.02em;
        }

        .spec-table td:last-child {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
        }

        .spec-table tr:last-child td {
            border-bottom: none;
        }

        .product-actions {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }

        .text-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color .2s;
        }

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

        .text-link .arrow {
            transition: transform .2s;
        }

        .text-link:hover .arrow {
            transform: translateX(4px);
        }

        /* ===== 数据指标 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .stat-item {
            padding: 36px 28px;
            text-align: center;
            border-right: 1px solid var(--border);
            transition: background .2s;
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-item:hover {
            background: var(--secondary);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.15;
            margin-bottom: 6px;
        }

        .stat-number .unit {
            font-size: 18px;
            margin-left: 2px;
        }

        .stat-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .stat-desc {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.5;
        }

        /* ===== 流程条 ===== */
        .process-steps {
            display: flex;
            align-items: stretch;
            gap: 0;
            margin: 40px 0 0;
            position: relative;
        }

        .process-step {
            flex: 1;
            text-align: center;
            padding: 28px 16px;
            position: relative;
            background: #fff;
            border: 1px solid var(--border);
            border-right: none;
            transition: box-shadow .2s, transform .2s;
        }

        .process-step:first-child {
            border-radius: var(--radius-md) 0 0 var(--radius-md);
        }

        .process-step:last-child {
            border-right: 1px solid var(--border);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }

        .process-step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            z-index: 1;
        }

        .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
        }

        .step-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .step-desc {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.5;
            max-width: 200px;
            margin: 0 auto;
        }

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

        .faq-item {
            border: 1px solid var(--border);
            background: #fff;
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow .2s, border-color .2s;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-card);
            border-color: var(--primary);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            user-select: none;
        }

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

        .faq-q {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
        }

        .faq-q-badge {
            width: 24px;
            height: 24px;
            border-radius: 4px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .faq-icon {
            font-size: 20px;
            color: var(--text-sub);
            transition: transform .25s ease, color .2s;
            flex-shrink: 0;
            line-height: 1;
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
        }

        .faq-answer {
            padding: 0 20px 18px 56px;
            background: var(--secondary);
            border-radius: 0;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--dark-bg) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 80px 0;
            color: #fff;
            text-align: center;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255,255,255,0.8);
            margin-bottom: 28px;
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-bg);
            color: var(--dark-text);
            padding: 64px 0 0;
        }

        .footer-top {
            display: flex;
            justify-content: space-between;
            gap: 48px;
            flex-wrap: wrap;
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .footer-brand .brand-mark {
            background: var(--accent);
            border-color: var(--accent);
        }

        .footer-brand span {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .footer-brand-line {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            line-height: 1.7;
            max-width: 260px;
            margin-bottom: 16px;
        }

        .footer-socials {
            display: flex;
            gap: 12px;
        }

        .footer-socials a {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            border: 1px solid rgba(255,255,255,0.25);
            color: rgba(255,255,255,0.65);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: border-color .2s, color .2s, background .2s;
        }

        .footer-socials a:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(255,255,255,0.06);
        }

        .footer-socials svg {
            width: 16px;
            height: 16px;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            transition: color .2s;
        }

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

        .footer-contact {
            list-style: none;
            padding: 0;
        }

        .footer-contact li {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact svg {
            width: 15px;
            height: 15px;
            flex-shrink: 0;
            opacity: 0.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255,255,255,0.45);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }

            .search-box {
                width: 130px;
            }

            .product-row {
                gap: 32px;
            }

            .product-media {
                flex-basis: 44%;
            }

            .section-block {
                padding: 56px 0;
            }

            .cta-section {
                padding: 64px 0;
            }
        }

        @media (min-width: 769px) {
            .mobile-drawer {
                display: none !important;
            }
        }

        @media (max-width: 768px) {
            .main-nav,
            .search-box,
            .header-tools .btn-primary {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .header-tools {
                gap: 8px;
            }

            .category-banner {
                padding: 48px 0;
                min-height: 220px;
            }

            .category-banner h1 {
                font-size: 26px;
            }

            .category-banner p {
                font-size: 14px;
            }

            .section-block {
                padding: 48px 0;
            }

            .section-title-row {
                flex-direction: column;
                margin-bottom: 28px;
            }

            .section-sub {
                text-align: left;
                max-width: none;
            }

            .product-row,
            .product-row.reverse {
                flex-direction: column;
                gap: 24px;
                padding-bottom: 48px;
            }

            .product-media {
                flex-basis: auto;
                width: 100%;
            }

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

            .stat-item {
                padding: 24px 16px;
                border-bottom: 1px solid var(--border);
            }

            .stat-item:nth-child(2) {
                border-right: none;
            }

            .stat-item:nth-child(3),
            .stat-item:nth-child(4) {
                border-bottom: none;
            }

            .process-steps {
                flex-direction: column;
                gap: 12px;
            }

            .process-step,
            .process-step:first-child,
            .process-step:last-child {
                border-radius: var(--radius-md);
                border-right: 1px solid var(--border);
            }

            .faq-answer {
                padding-left: 20px;
            }

            .cta-section h2 {
                font-size: 22px;
            }

            .footer-top {
                flex-direction: column;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 12px;
            }

            .category-banner h1 {
                font-size: 22px;
            }

            .banner-tags {
                gap: 6px;
            }

            .banner-tag {
                font-size: 11px;
                padding: 3px 10px;
            }

            .product-filter {
                gap: 8px;
            }

            .filter-tag {
                padding: 6px 14px;
                font-size: 13px;
            }

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

            .stat-number {
                font-size: 28px;
            }

            .stat-label {
                font-size: 13px;
            }

            .stat-desc {
                font-size: 12px;
            }
        }

        /* ===== 占位空态 ===== */
        .empty-state {
            padding: 48px 24px;
            text-align: center;
            color: var(--text-sub);
            font-size: 14px;
            background: var(--secondary);
            border-radius: var(--radius-md);
        }

/* roulang page: article */
:root {
            --primary: #1B3A3B;
            --accent: #E8590C;
            --accent-hover: #C64D08;
            --secondary: #EAF0EC;
            --page-bg: #F7F8F5;
            --card-bg: #FFFFFF;
            --text: #22261F;
            --text-light: #5B625B;
            --border: #DDE3DE;
            --dark: #112222;
            --radius: 8px;
            --radius-sm: 4px;
            --shadow: 0 2px 8px rgba(17,34,34,0.06);
            --shadow-lg: 0 8px 24px rgba(17,34,34,0.10);
            --container-w: 1240px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--page-bg);
            color: var(--text);
            line-height: 1.6;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
        a:hover { color: #122525; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        input, button, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.2;
            border: 1px solid transparent;
            transition: background 0.2s, transform 0.15s, border-color 0.2s, box-shadow 0.2s;
        }
        .btn:active { transform: scale(0.98); }
        .btn-primary { background: var(--accent); color: #fff; }
        .btn-primary:hover { background: var(--accent-hover); color: #fff; }
        .btn-secondary { background: #fff; border: 1px solid var(--primary); color: var(--primary); }
        .btn-secondary:hover { background: var(--secondary); color: var(--primary); }
        .btn-sm { padding: 8px 16px; font-size: 14px; }
        .btn-lg { padding: 14px 32px; font-size: 16px; }
        .btn-dark { background: var(--dark); color: #fff; border-color: var(--dark); }
        .btn-dark:hover { background: #1e3a3a; }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
            height: 64px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-mark {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 50%, var(--accent) 50%);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            padding: 8px 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color 0.2s, background 0.2s;
        }
        .nav-link:hover { color: var(--primary); background: var(--secondary); }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: -2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-wrap {
            display: flex;
            align-items: center;
            background: #F2F4F1;
            border: 1px solid transparent;
            border-radius: var(--radius-sm);
            padding: 7px 12px;
            width: 180px;
            transition: border-color 0.2s, background 0.2s;
        }
        .search-wrap:focus-within {
            border-color: var(--accent);
            background: #fff;
        }
        .search-wrap svg {
            width: 15px;
            height: 15px;
            color: var(--text-light);
            flex-shrink: 0;
            margin-right: 6px;
        }
        .search-wrap input {
            border: none;
            background: transparent;
            outline: none;
            width: 100%;
            font-size: 14px;
            color: var(--text);
        }
        .search-wrap input::placeholder { color: var(--text-light); opacity: 0.8; }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: var(--radius-sm);
            background: var(--secondary);
            align-items: center;
        }
        .mobile-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* ===== 文章 Hero ===== */
        .article-hero {
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 52px 0 64px;
            color: #fff;
        }
        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(17,34,34,0.88) 0%, rgba(17,34,34,0.62) 60%, rgba(17,34,34,0.38) 100%);
        }
        .article-hero .container { position: relative; z-index: 1; }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: rgba(255,255,255,0.65);
            margin-bottom: 20px;
        }
        .breadcrumb a { color: rgba(255,255,255,0.85); }
        .breadcrumb a:hover { color: #fff; text-decoration: underline; }
        .breadcrumb .sep { opacity: 0.5; }
        .breadcrumb .current { color: rgba(255,255,255,0.9); }
        .article-hero h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 12px;
            max-width: 880px;
            color: #fff;
        }
        .article-subhead {
            font-size: 15px;
            color: rgba(255,255,255,0.75);
            margin-bottom: 20px;
            max-width: 720px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px 16px;
            font-size: 13px;
            color: rgba(255,255,255,0.7);
        }
        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .article-meta .meta-cat {
            display: inline-block;
            background: rgba(232,89,12,0.22);
            color: #ffb089;
            padding: 2px 10px;
            border-radius: var(--radius-sm);
            font-size: 12px;
            font-weight: 600;
        }
        .article-meta .meta-cat a { color: #ffb089; }
        .article-meta .meta-cat a:hover { color: #ffc7a3; }

        /* ===== 正文 ===== */
        .article-main {
            padding: 48px 0 64px;
        }
        .article-body {
            max-width: 760px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 48px;
            font-size: 15px;
            line-height: 1.75;
        }
        .article-body p { margin-bottom: 1.2em; color: var(--text); }
        .article-body h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            margin: 1.6em 0 0.8em;
            padding-left: 12px;
            position: relative;
        }
        .article-body h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0.15em;
            width: 4px;
            height: 1em;
            background: var(--accent);
            border-radius: 2px;
        }
        .article-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin: 1.4em 0 0.6em;
        }
        .article-body img {
            width: 100%;
            border-radius: var(--radius);
            margin: 24px 0;
            background: var(--secondary);
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: var(--secondary);
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            margin: 24px 0;
            color: var(--text);
            font-size: 14px;
        }
        .article-body ul {
            margin: 16px 0;
            padding-left: 20px;
            list-style: disc;
        }
        .article-body ul li { margin-bottom: 6px; }
        .article-body ul li::marker { color: var(--primary); }
        .article-body ol {
            margin: 16px 0;
            padding-left: 20px;
            list-style: decimal;
        }
        .article-body ol li { margin-bottom: 6px; }
        .article-body ol li::marker { color: var(--primary); font-weight: 700; }
        .content-not-found {
            text-align: center;
            padding: 60px 24px;
        }
        .content-not-found .not-found-icon {
            font-size: 36px;
            margin-bottom: 16px;
            color: var(--border);
        }
        .content-not-found h3 {
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .content-not-found p {
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .article-back {
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            text-align: center;
        }
        .article-back a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
        }
        .article-back a svg { width: 14px; height: 14px; }

        /* ===== 相关阅读 ===== */
        .related-section {
            background: var(--secondary);
            padding: 56px 0 72px;
        }
        .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            position: relative;
            padding-left: 16px;
            line-height: 1.3;
        }
        .section-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0.1em;
            width: 4px;
            height: 1em;
            background: var(--accent);
            border-radius: 2px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: box-shadow 0.25s, border-color 0.25s, transform 0.25s;
        }
        .related-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .related-card .card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--secondary);
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s;
        }
        .related-card:hover .card-img img { transform: scale(1.03); }
        .related-card .card-body {
            padding: 18px 20px 22px;
        }
        .related-card .card-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.45;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body h3 a { color: var(--text); }
        .related-card .card-body h3 a:hover { color: var(--accent); }
        .related-card .card-date {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== CTA ===== */
        .article-cta {
            background: var(--dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 64px 0;
            text-align: center;
        }
        .article-cta .container { position: relative; z-index: 1; }
        .article-cta::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(17,34,34,0.82);
        }
        .article-cta h2 {
            color: #fff;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .article-cta p {
            color: rgba(255,255,255,0.75);
            font-size: 15px;
            margin-bottom: 24px;
        }
        .article-cta .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: #D5DDD9;
            padding: 56px 0 0;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-brand .brand-mark {
            width: 30px;
            height: 30px;
            font-size: 14px;
        }
        .footer-brand span {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }
        .footer-brand-line {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .footer-socials {
            display: flex;
            gap: 10px;
        }
        .footer-socials a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border: 1px solid rgba(255,255,255,0.25);
            border-radius: 50%;
            color: rgba(255,255,255,0.7);
            transition: border-color 0.2s, color 0.2s, background 0.2s;
        }
        .footer-socials a:hover {
            border-color: var(--accent);
            color: #fff;
            background: rgba(232,89,12,0.2);
        }
        .footer-socials svg { width: 16px; height: 16px; }
        .footer-col-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links { display: grid; gap: 8px; }
        .footer-links a {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            transition: color 0.2s;
        }
        .footer-links a:hover { color: var(--accent); }
        .footer-contact { display: grid; gap: 10px; }
        .footer-contact li {
            font-size: 13px;
            color: rgba(255,255,255,0.7);
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.5;
        }
        .footer-contact li .contact-label {
            color: rgba(255,255,255,0.45);
            font-size: 12px;
            min-width: 48px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255,255,255,0.45);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .search-wrap { width: 140px; }
            .nav-link { padding: 8px 8px; font-size: 14px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-top { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 767px) {
            .header-inner { gap: 8px; }
            .main-nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: #fff;
                flex-direction: column;
                justify-content: flex-start;
                align-items: stretch;
                padding: 80px 24px 24px;
                box-shadow: -4px 0 24px rgba(0,0,0,0.1);
                transition: right 0.3s ease;
                z-index: 1000;
                gap: 4px;
            }
            .main-nav.open { right: 0; }
            .nav-link {
                padding: 14px 12px;
                font-size: 18px;
                font-weight: 600;
                border-radius: var(--radius-sm);
                text-align: left;
            }
            .nav-link.active::after { display: none; }
            .nav-link.active { background: var(--secondary); }
            .search-wrap { width: 40px; padding: 7px 8px; }
            .search-wrap input { display: none; }
            .search-wrap svg { margin-right: 0; margin: 0 auto; }
            .header-tools .btn { padding: 8px 12px; font-size: 13px; }
            .mobile-toggle { display: flex; }
            .article-hero h1 { font-size: 26px; }
            .article-body { padding: 28px 20px; border-radius: 0; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-top { grid-template-columns: 1fr; gap: 32px; }
            .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
        }
        @media (max-width: 520px) {
            .container { padding-left: 12px; padding-right: 12px; }
            .brand-name { font-size: 16px; }
            .article-hero { padding: 36px 0 44px; }
            .article-hero h1 { font-size: 22px; }
            .article-subhead { font-size: 14px; }
            .article-body { padding: 24px 16px; font-size: 14px; }
            .related-grid { grid-template-columns: 1fr; }
            .article-cta h2 { font-size: 22px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

/* roulang page: category2 */
:root {
    --primary: #1B3A3B;
    --accent: #E8590C;
    --secondary: #EAF0EC;
    --page-bg: #F7F8F5;
    --card-bg: #FFFFFF;
    --text-main: #22261F;
    --text-muted: #5B625B;
    --border: #DDE3DE;
    --dark-block: #112222;
    --radius-sm: 4px;
    --radius-md: 8px;
    --shadow-card: 0 2px 8px rgba(17, 34, 34, 0.06);
    --shadow-hover: 0 8px 24px rgba(17, 34, 34, 0.10);
}

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

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

body {
    font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--page-bg);
    color: var(--text-main);
    line-height: 1.75;
    font-size: 15px;
}

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

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

a:hover {
    color: #122525;
}

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

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

input,
select,
textarea {
    font-family: inherit;
    font-size: 14px;
    color: var(--text-main);
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 16px;
}

.section-block {
    padding: 80px 0;
}

/* ==================== Header & Nav ==================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #ffffff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.header-wrap {
    display: flex;
    align-items: center;
    height: 64px;
    gap: 32px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.brand-mark {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary) 0%, #2a5a5c 100%);
    color: #ffffff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    line-height: 1;
}

.brand-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}

.main-nav {
    display: flex;
    gap: 28px;
    flex: 1;
    justify-content: center;
    align-items: center;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-muted);
    padding: 8px 0;
    position: relative;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--primary);
}

.nav-link:hover::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    background: var(--border);
}

.nav-link.active {
    color: var(--primary);
    font-weight: 600;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    background: var(--accent);
}

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

.search-box {
    display: flex;
    align-items: center;
    background: #f2f4f1;
    border-radius: var(--radius-sm);
    padding: 0 12px;
    border: 1px solid transparent;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.search-box:focus-within {
    border-color: var(--accent);
    background: #ffffff;
}

.search-box .search-icon {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
    margin-right: 6px;
    flex-shrink: 0;
}

.search-box input {
    background: transparent;
    border: none;
    outline: none;
    width: 160px;
    height: 36px;
    font-size: 14px;
    color: var(--text-main);
}

.search-box input::placeholder {
    color: #9aa39d;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #ffffff;
    border-radius: var(--radius-sm);
    padding: 10px 20px;
    font-weight: 600;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
    background: #c64d08;
    color: #ffffff;
}

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    color: var(--primary);
    border: 1px solid var(--primary);
    border-radius: var(--radius-sm);
    padding: 10px 20px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.1s ease;
}

.btn-secondary:hover {
    background: var(--secondary);
    color: var(--primary);
}

.btn-secondary:active {
    transform: scale(0.98);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: transparent;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

/* 移动端全屏抽屉 */
.mobile-menu {
    position: fixed;
    inset: 0;
    background: #ffffff;
    z-index: 200;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu.open {
    opacity: 1;
    visibility: visible;
}

.mobile-menu .close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 24px;
    color: var(--text-muted);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.mobile-menu .close-btn:hover {
    background: var(--secondary);
}

.mobile-menu a.nav-link-m {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary);
    padding: 6px 12px;
}

.mobile-menu a.nav-link-m.active {
    color: var(--accent);
}

.mobile-menu .mobile-cta {
    margin-top: 12px;
    min-width: 140px;
}

/* ==================== Banner ==================== */
.page-banner {
    position: relative;
    height: 280px;
    display: flex;
    align-items: center;
    background: var(--dark-block);
    overflow: hidden;
}

.banner-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.6;
}

.banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(17, 34, 34, 0.9) 0%, rgba(17, 34, 34, 0.6) 55%, rgba(17, 34, 34, 0.25) 100%);
}

.banner-content {
    position: relative;
    z-index: 2;
    color: #ffffff;
}

.banner-content h1 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.banner-content h1 span {
    display: inline-block;
    width: 4px;
    height: 28px;
    background: var(--accent);
    border-radius: 2px;
}

.banner-content p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    max-width: 560px;
    line-height: 1.7;
    margin-left: 18px;
}

/* ==================== Section 通用标题 ==================== */
.section-title-wrap {
    margin-bottom: 48px;
}

.section-title-wrap h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.3;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-title-wrap h2::before {
    content: '';
    width: 12px;
    height: 24px;
    background: var(--accent);
    border-radius: 2px;
    flex-shrink: 0;
}

.section-title-wrap .sub-text {
    font-size: 14px;
    color: var(--text-muted);
    margin-left: 24px;
}

/* ==================== 流程条 ==================== */
.process-section {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    position: relative;
}

.step-item {
    text-align: center;
    position: relative;
    padding-top: 8px;
}

.step-item:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 36px;
    left: calc(50% + 36px);
    width: calc(100% - 40px);
    border-top: 1px dashed var(--border);
}

.step-num {
    width: 56px;
    height: 56px;
    background: var(--accent);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    margin: 0 auto 16px;
    line-height: 1;
    box-shadow: 0 4px 12px rgba(232, 89, 12, 0.18);
    font-variant-numeric: tabular-nums;
}

.step-item h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.step-item p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.65;
    max-width: 200px;
    margin: 0 auto;
}

/* ==================== 场景区块 ==================== */
.scenario-section {
    background: var(--page-bg);
}

.scenario-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
    padding: 48px 0;
    border-bottom: 1px solid var(--border);
}

.scenario-row:first-of-type {
    border-top: none;
}

.scenario-row.reverse .scenario-img {
    order: 2;
}

.scenario-img img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.scenario-img img:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.scenario-text h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
    line-height: 1.4;
}

.scenario-text p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 14px;
}

.scenario-text p:last-of-type {
    margin-bottom: 20px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 600;
    color: var(--primary);
}

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

.text-link:hover svg {
    transform: translateX(4px);
}

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

.scenario-download {
    padding: 40px 0 0;
    text-align: center;
}

/* ==================== 数据条 ==================== */
.stats-section {
    background: var(--dark-block);
    padding: 72px 0;
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    opacity: 0.1;
}

.stats-inner {
    position: relative;
    z-index: 2;
}

.stats-label {
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.04em;
    margin-bottom: 40px;
}

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

.stat-item {
    padding: 24px 16px;
    border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-item:last-child {
    border-right: none;
}

.stat-num {
    font-size: 36px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
}

.stat-name {
    font-size: 15px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 8px;
}

.stat-desc {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 4px;
    line-height: 1.5;
}

/* ==================== FAQ ==================== */
.faq-section {
    background: #ffffff;
}

.faq-list {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.faq-item:hover {
    border-color: rgba(27, 58, 59, 0.4);
}

.faq-item[open] {
    border-color: rgba(27, 58, 59, 0.35);
    box-shadow: var(--shadow-card);
}

.faq-item summary {
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    padding: 16px 20px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    list-style: none;
    user-select: none;
    line-height: 1.5;
}

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

.faq-item summary::after {
    content: '+';
    margin-left: auto;
    font-size: 22px;
    font-weight: 400;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
    content: '−';
    color: var(--accent);
}

.faq-q {
    width: 24px;
    height: 24px;
    background: var(--accent);
    color: #ffffff;
    font-size: 12px;
    font-weight: 700;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    line-height: 1;
}

.faq-answer {
    padding: 0 20px 18px 58px;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    border-top: 1px dashed var(--border);
    margin-top: 0;
    padding-top: 14px;
}

/* ==================== CTA ==================== */
.cta-section {
    background: var(--dark-block);
    padding: 80px 0;
    position: relative;
    text-align: center;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-position: center;
    opacity: 0.12;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
    margin: 0 auto;
    padding: 0 16px;
}

.cta-content h2 {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.35;
    margin-bottom: 16px;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 32px;
}

.cta-content .btn-primary {
    padding: 14px 36px;
    font-size: 16px;
}

/* ==================== Footer ==================== */
.site-footer {
    background: var(--dark-block);
    color: #d5ddd9;
    padding: 64px 0 0;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}

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

.footer-brand .brand-mark {
    background: var(--accent);
}

.footer-brand span {
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
}

.footer-brand-line {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 320px;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.footer-socials a {
    width: 36px;
    height: 36px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    transition: border-color 0.2s ease, color 0.2s ease;
}

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

.footer-socials svg {
    width: 16px;
    height: 16px;
}

.footer-col-title {
    font-size: 14px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

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

.footer-contact {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.footer-contact svg {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
    margin-top: 3px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
}

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

/* ==================== 响应式 ==================== */
@media (max-width: 1023px) {
    .main-nav {
        gap: 18px;
    }

    .search-box {
        display: none;
    }

    .header-wrap {
        gap: 16px;
    }

    .nav-right {
        gap: 8px;
    }

    .process-steps {
        gap: 24px;
    }

    .step-item:not(:last-child)::after {
        left: calc(50% + 28px);
        width: calc(100% - 30px);
    }

    .scenario-row {
        gap: 32px;
    }

    .stats-grid {
        gap: 16px;
    }
}

@media (max-width: 767px) {
    .section-block {
        padding: 56px 0;
    }

    .header-wrap {
        height: 56px;
        gap: 12px;
    }

    .main-nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-right .btn-primary {
        padding: 8px 14px;
        font-size: 14px;
    }

    .page-banner {
        height: 240px;
    }

    .banner-content h1 {
        font-size: 28px;
    }

    .banner-content p {
        font-size: 14px;
        margin-left: 18px;
    }

    .section-title-wrap h2 {
        font-size: 24px;
    }

    .process-steps {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }

    .step-item:not(:last-child)::after {
        display: none;
    }

    .step-item p {
        max-width: none;
    }

    .scenario-row {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 32px 0;
    }

    .scenario-row.reverse .scenario-img {
        order: 0;
    }

    .scenario-img img {
        aspect-ratio: 16 / 10;
    }

    .scenario-text h3 {
        font-size: 20px;
    }

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

    .stat-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        padding: 16px 8px;
    }

    .stat-item:nth-child(odd) {
        border-right: 1px solid rgba(255, 255, 255, 0.08);
    }

    .stat-num {
        font-size: 30px;
    }

    .cta-section {
        padding: 56px 0;
    }

    .cta-content h2 {
        font-size: 24px;
    }

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        justify-content: center;
    }
}

@media (max-width: 520px) {
    .container {
        padding: 0 12px;
    }

    .brand-name {
        font-size: 17px;
    }

    .nav-right .btn-primary {
        padding: 8px 12px;
        font-size: 13px;
    }

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

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

    .stats-label {
        margin-bottom: 24px;
    }

    .faq-item summary {
        padding: 14px 16px;
        font-size: 14px;
    }

    .faq-answer {
        padding: 0 16px 16px 50px;
        font-size: 13px;
    }

    .scenario-download {
        padding: 24px 0 0;
    }
}

/* roulang page: category3 */
:root {
            --primary: #1B3A3B;
            --primary-dark: #122525;
            --accent: #E8590C;
            --accent-dark: #C64D08;
            --secondary: #EAF0EC;
            --page-bg: #F7F8F5;
            --card-bg: #FFFFFF;
            --text-main: #22261F;
            --text-sub: #5B625B;
            --border: #DDE3DE;
            --dark: #112222;
            --radius-sm: 4px;
            --radius-md: 8px;
            --shadow-card: 0 2px 8px rgba(17, 34, 34, 0.06);
            --shadow-hover: 0 8px 24px rgba(17, 34, 34, 0.10);
            --container-width: 1240px;
            --nav-height: 64px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--page-bg);
            color: var(--text-main);
            font-size: 15px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 14px;
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        /* ---------- Header ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            height: var(--nav-height);
        }

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

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary) 55%, var(--accent) 55%);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
        }

        .brand span {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 16px;
        }

        .nav-link {
            display: block;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color .2s;
            box-shadow: none;
            border: none;
            background: transparent;
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .nav-link:hover::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: #d5ddda;
            border-radius: 2px;
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .search-box {
            display: flex;
            align-items: center;
            background: #F2F4F1;
            border: 1px solid transparent;
            border-radius: var(--radius-sm);
            padding: 0 12px;
            width: 180px;
            height: 36px;
            transition: border-color .2s;
        }

        .search-box:focus-within {
            border-color: var(--accent);
        }

        .search-box svg {
            width: 16px;
            height: 16px;
            stroke: var(--text-sub);
            margin-right: 8px;
            flex-shrink: 0;
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            width: 100%;
            font-size: 13px;
            color: var(--text-main);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            line-height: 1;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: background .2s, transform .15s;
            white-space: nowrap;
        }

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

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

        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            line-height: 1;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: background .2s, transform .15s;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: var(--secondary);
            color: var(--primary);
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            cursor: pointer;
            padding: 8px 10px;
            border-radius: 4px;
        }

        .mobile-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            margin: 2px 0;
            transition: all .3s;
        }

        .mobile-toggle.active span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }

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

        .mobile-toggle.active span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        .mobile-menu {
            position: fixed;
            inset: 0;
            background: #fff;
            z-index: 90;
            display: none;
            flex-direction: column;
            padding: 96px 24px 32px;
            overflow-y: auto;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a.nav-link {
            padding: 16px 8px;
            font-size: 20px;
            font-weight: 600;
            color: var(--text-main);
            border-bottom: 1px solid var(--border);
        }

        .mobile-menu a.nav-link.active {
            color: var(--accent);
        }

        .mobile-menu a.nav-link::after {
            display: none;
        }

        .mobile-menu .btn-primary {
            margin-top: 24px;
            width: 100%;
        }

        /* ---------- Page Banner ---------- */
        .page-banner {
            position: relative;
            background-size: cover;
            background-position: center;
            min-height: 280px;
            display: flex;
            align-items: center;
            isolation: isolate;
        }

        .page-banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(17, 34, 34, 0.78) 0%, rgba(17, 34, 34, 0.38) 60%, rgba(17, 34, 34, 0.10) 100%);
            z-index: -1;
        }

        .banner-content {
            padding-top: 40px;
            padding-bottom: 40px;
            max-width: 820px;
        }

        .banner-tag {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .banner-content h1 {
            color: #fff;
            font-size: 32px;
            line-height: 1.3;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .banner-content p {
            color: rgba(255, 255, 255, 0.88);
            font-size: 15px;
            line-height: 1.7;
            margin: 0;
        }

        /* ---------- Features ---------- */
        .features-section {
            padding: 48px 0;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s, border-color .3s, transform .2s;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--accent);
        }

        .feature-icon svg {
            width: 24px;
            height: 24px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .feature-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-sub);
            margin: 0;
        }

        /* ---------- Support Layout ---------- */
        .support-section-wrap {
            padding: 24px 0 64px;
        }

        .support-layout {
            display: grid;
            grid-template-columns: 220px 1fr;
            gap: 40px;
            align-items: start;
        }

        .support-menu {
            position: sticky;
            top: 96px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 12px;
            box-shadow: var(--shadow-card);
        }

        .support-menu-item {
            display: block;
            padding: 11px 16px;
            border-radius: var(--radius-sm);
            border-left: 3px solid transparent;
            color: var(--text-sub);
            font-size: 14px;
            font-weight: 500;
            transition: color .2s, background .2s, border-color .2s;
        }

        .support-menu-item+.support-menu-item {
            margin-top: 4px;
        }

        .support-menu-item:hover {
            color: var(--primary);
            background: var(--secondary);
        }

        .support-menu-item.active {
            color: var(--accent);
            border-left-color: var(--accent);
            background: var(--secondary);
            font-weight: 600;
        }

        .support-content {
            min-width: 0;
        }

        .support-block {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 40px;
            box-shadow: var(--shadow-card);
            scroll-margin-top: 88px;
        }

        .support-block+.support-block {
            margin-top: 28px;
        }

        .block-title {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            padding-left: 14px;
            position: relative;
            margin-bottom: 8px;
        }

        .block-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 7px;
            width: 4px;
            height: 20px;
            background: var(--accent);
            border-radius: 2px;
        }

        .block-desc {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        /* ---------- Scope Grid ---------- */
        .scope-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .scope-card {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            background: #fff;
            transition: border-color .2s, box-shadow .2s;
        }

        .scope-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .scope-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--secondary);
            color: var(--accent);
            font-size: 12px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            text-align: center;
            line-height: 28px;
            margin-bottom: 12px;
        }

        .scope-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .scope-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.65;
            margin: 0;
        }

        /* ---------- Timeline ---------- */
        .timeline {
            position: relative;
            padding-left: 44px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 15px;
            top: 10px;
            bottom: 10px;
            width: 2px;
            background: #D9E2DC;
        }

        .timeline-item {
            position: relative;
            padding-bottom: 36px;
        }

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

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -37px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 4px rgba(27, 58, 59, 0.1);
        }

        .timeline-step {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: var(--radius-sm);
            margin-bottom: 8px;
            font-variant-numeric: tabular-nums;
        }

        .timeline-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .timeline-item p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

        /* ---------- Accordion ---------- */
        .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: #fff;
            transition: border-color .2s;
        }

        .accordion-item+.accordion-item {
            margin-top: 12px;
        }

        .accordion-item.open {
            border-color: var(--primary);
        }

        .accordion-btn {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 12px;
            border: none;
            background: transparent;
            padding: 16px;
            cursor: pointer;
            text-align: left;
            color: var(--text-main);
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            transition: color .2s;
        }

        .accordion-btn:hover {
            color: var(--primary);
        }

        .accordion-q {
            width: 24px;
            height: 24px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .accordion-icon {
            margin-left: auto;
            width: 22px;
            height: 22px;
            border: 1px solid var(--border);
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-sub);
            font-size: 14px;
            flex-shrink: 0;
            transition: all .2s;
        }

        .accordion-item.open .accordion-icon {
            color: var(--accent);
            border-color: var(--accent);
        }

        .accordion-content {
            display: none;
            background: var(--secondary);
            margin: 0 16px 16px;
            border-radius: var(--radius-sm);
            padding: 14px 16px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        .accordion-content p {
            margin: 0;
        }

        .accordion-item.open .accordion-content {
            display: block;
        }

        /* ---------- Form ---------- */
        .ticket-form {
            margin-top: 8px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
        }

        .form-group label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 12px;
            font-size: 14px;
            color: var(--text-main);
            background: #fff;
            transition: border-color .2s, box-shadow .2s;
            width: 100%;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(232, 89, 12, 0.1);
        }

        .form-group textarea {
            resize: vertical;
        }

        .form-submit-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-top: 20px;
        }

        .form-note {
            font-size: 13px;
            color: var(--text-sub);
            margin: 0;
        }

        /* ---------- Contact ---------- */
        .contact-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .contact-card {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            background: var(--page-bg);
        }

        .contact-label {
            font-size: 12px;
            color: var(--text-sub);
            display: block;
            margin-bottom: 6px;
        }

        .contact-value {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
        }

        .contact-value:hover {
            color: var(--accent);
        }

        .contact-card p.contact-value {
            font-size: 15px;
            color: var(--text-main);
            margin: 0;
        }

        /* ---------- CTA Dark ---------- */
        .cta-dark {
            background: var(--dark);
            padding: 64px 0;
            text-align: center;
            position: relative;
        }

        .cta-dark::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
        }

        .cta-dark .container {
            position: relative;
            z-index: 1;
        }

        .cta-dark h2 {
            color: #fff;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .cta-dark p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            margin-bottom: 28px;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--dark);
            color: #D5DDD9;
            padding-top: 48px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .footer-brand .brand-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary) 55%, var(--accent) 55%);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .footer-brand span {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .footer-brand-line {
            font-size: 14px;
            color: #9AA8A4;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .footer-socials {
            display: flex;
            gap: 10px;
        }

        .footer-socials a {
            width: 36px;
            height: 36px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #B7C2BE;
            transition: border-color .2s, color .2s;
        }

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

        .footer-socials svg {
            width: 16px;
            height: 16px;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            font-size: 13px;
            color: #9AA8A4;
            transition: color .2s;
        }

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

        .footer-contact {
            list-style: none;
            padding: 0;
            font-size: 13px;
            color: #9AA8A4;
        }

        .footer-contact li {
            margin-bottom: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 16px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: #7B8A86;
        }

        .footer-bottom p {
            margin: 0;
        }

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

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

            .search-box {
                width: 140px;
            }

            .mobile-toggle {
                display: flex;
            }

            .support-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .support-menu {
                position: static;
                top: auto;
                display: flex;
                flex-wrap: wrap;
                gap: 4px;
                padding: 8px;
            }

            .support-menu-item {
                border-left: none;
                border-radius: var(--radius-sm);
                padding: 8px 14px;
            }

            .support-menu-item.active {
                border-left: none;
            }

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

        @media (max-width: 767px) {
            .header-inner .btn-primary {
                padding: 8px 14px;
                font-size: 13px;
            }

            .header-actions .search-box {
                display: none;
            }

            .banner-content h1 {
                font-size: 24px;
            }

            .page-banner {
                min-height: 240px;
            }

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

            .support-block {
                padding: 24px 16px;
            }

            .scope-grid,
            .form-row {
                grid-template-columns: 1fr;
            }

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

            .form-submit-row {
                flex-direction: column;
                align-items: flex-start;
            }

            .form-submit-row .btn-primary {
                width: 100%;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .footer-top>div[style] {
                flex-direction: column !important;
                gap: 24px !important;
            }

            .cta-dark h2 {
                font-size: 22px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1B3A3B;
            --accent: #E8590C;
            --accent-dark: #C64D08;
            --secondary: #EAF0EC;
            --page-bg: #F7F8F5;
            --card-bg: #FFFFFF;
            --text-main: #22261F;
            --text-muted: #5B625B;
            --border: #DDE3DE;
            --dark-bg: #112222;
            --radius-sm: 4px;
            --radius-md: 8px;
            --shadow-sm: 0 2px 8px rgba(17, 34, 34, 0.06);
            --shadow-md: 0 8px 24px rgba(17, 34, 34, 0.10);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--page-bg);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover {
            color: #122525;
        }

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

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

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            padding: 10px 20px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            cursor: pointer;
            border: none;
            transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
        }

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

        .btn:active {
            transform: scale(0.98);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
        }

        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--secondary);
            color: var(--primary);
            border-color: var(--primary);
        }

        /* Header */
        .site-header {
            background: #fff;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 999;
            height: 64px;
        }

        .nav-container {
            height: 64px;
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 32px;
            height: 32px;
            border-radius: 4px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            line-height: 1;
            position: relative;
            overflow: hidden;
        }

        .brand-mark::after {
            content: '';
            position: absolute;
            width: 18px;
            height: 2px;
            background: var(--accent);
            bottom: 5px;
            right: 3px;
            border-radius: 2px;
            opacity: 0.9;
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: 24px;
            flex: 1;
        }

        .main-nav .nav-link {
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color 0.2s;
            white-space: nowrap;
        }

        .main-nav .nav-link:hover {
            color: var(--primary);
        }

        .main-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .search-box {
            display: flex;
            align-items: center;
            background: #F2F4F1;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            padding: 0 10px;
            height: 36px;
            width: 180px;
            transition: border-color 0.2s, background 0.2s;
        }

        .search-box:focus-within {
            border-color: var(--accent);
            background: #fff;
        }

        .search-box .search-icon {
            width: 16px;
            height: 16px;
            color: #88928E;
            flex-shrink: 0;
            margin-right: 6px;
        }

        .search-box input {
            border: none;
            background: transparent;
            font-size: 13px;
            width: 100%;
            color: var(--text-main);
        }

        .search-box input::placeholder {
            color: #9AA39F;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            margin-left: auto;
        }

        .nav-toggle span {
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform 0.2s, opacity 0.2s;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }

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

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        /* Page Banner */
        .page-banner {
            min-height: 280px;
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            position: relative;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(17, 34, 34, 0.9) 0%, rgba(17, 34, 34, 0.55) 70%, rgba(17, 34, 34, 0.3) 100%);
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .page-banner h1 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .page-banner p {
            font-size: 15px;
            color: #D5DDD9;
            max-width: 560px;
            line-height: 1.7;
            margin: 0;
        }

        /* Stats Strip */
        .stats-strip {
            background: #fff;
            border-bottom: 1px solid var(--border);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            padding: 32px 0;
        }

        .stat-item {
            text-align: center;
            padding: 8px 16px;
            border-right: 1px solid var(--border);
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* About Intro */
        .about-intro {
            padding: 80px 0;
            background: var(--page-bg);
        }

        .about-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .about-intro .section-label {
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 12px;
            display: block;
        }

        .about-intro h2 {
            font-size: 27px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 18px;
            padding-left: 14px;
            border-left: 4px solid var(--accent);
        }

        .about-intro p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .about-intro .badge-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .about-intro .badge {
            background: var(--secondary);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
        }

        .about-intro-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .about-intro-img img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            transition: transform 0.4s;
        }

        .about-intro-img:hover img {
            transform: scale(1.02);
        }

        /* Milestones */
        .milestones {
            padding: 80px 0;
            background: #fff;
            border-top: 1px solid var(--border);
        }

        .section-title-wrap {
            margin-bottom: 48px;
        }

        .section-title-wrap h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            padding-left: 14px;
            border-left: 4px solid var(--accent);
        }

        .section-title-wrap p {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 10px;
            padding-left: 18px;
        }

        .timeline {
            position: relative;
            max-width: 1100px;
            margin: 0 auto;
            padding: 20px 0 20px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--primary);
            transform: translateX(-50%);
        }

        .timeline-row {
            position: relative;
            width: 50%;
            padding: 0 44px 48px 0;
            box-sizing: border-box;
        }

        .timeline-row:nth-child(even) {
            margin-left: 50%;
            padding: 0 0 48px 44px;
        }

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

        .timeline-row:nth-child(even):last-child {
            padding-bottom: 0;
        }

        .timeline-row::before {
            content: '';
            position: absolute;
            right: -7px;
            top: 30px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid #fff;
            box-shadow: 0 0 0 2px var(--primary);
            z-index: 1;
        }

        .timeline-row:nth-child(even)::before {
            right: auto;
            left: -7px;
        }

        .timeline-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.3s, border-color 0.3s;
        }

        .timeline-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .timeline-year {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.04em;
            margin-bottom: 6px;
        }

        .timeline-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .timeline-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* Certificates */
        .certificates {
            padding: 80px 0;
            background: var(--page-bg);
        }

        .cert-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .cert-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: box-shadow 0.3s, border-color 0.3s;
        }

        .cert-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .cert-card .cert-img {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            background: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .cert-card .cert-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }

        .cert-card:hover .cert-img img {
            transform: scale(1.03);
        }

        .cert-name {
            padding: 16px 18px;
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            font-weight: 500;
            border-top: 1px solid var(--border);
            background: #fff;
        }

        /* CTA Block */
        .cta-block {
            background: var(--dark-bg);
            background-image: linear-gradient(rgba(17, 34, 34, 0.85), rgba(17, 34, 34, 0.85)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 64px 0;
            text-align: center;
        }

        .cta-block h2 {
            font-size: 27px;
            font-weight: 700;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .cta-block p {
            font-size: 15px;
            color: #D5DDD9;
            margin-bottom: 28px;
        }

        .cta-block .btn-accent {
            padding: 14px 36px;
            font-size: 16px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 20px rgba(232, 89, 12, 0.35);
        }

        /* Footer */
        .site-footer {
            background: #112222;
            color: #D5DDD9;
            padding: 52px 0 24px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1.6fr 1fr;
            gap: 48px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

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

        .footer-brand .brand-mark {
            width: 32px;
            height: 32px;
            border-radius: 4px;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
        }

        .footer-brand span {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .footer-brand-line {
            font-size: 13px;
            color: #9DA8A3;
            line-height: 1.7;
            margin-bottom: 18px;
            max-width: 340px;
        }

        .footer-socials {
            display: flex;
            gap: 10px;
        }

        .footer-socials a {
            width: 32px;
            height: 32px;
            border: 1px solid #465754;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #D5DDD9;
            transition: border-color 0.2s, color 0.2s, background 0.2s;
        }

        .footer-socials a:hover {
            border-color: var(--accent);
            color: #fff;
            background: rgba(232, 89, 12, 0.2);
        }

        .footer-socials a svg {
            width: 15px;
            height: 15px;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
            font-size: 13px;
            color: #9DA8A3;
            line-height: 1.6;
        }

        .footer-links a {
            color: #9DA8A3;
            text-decoration: none;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #7D8A85;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .search-box {
                width: 130px;
            }

            .main-nav .nav-link {
                padding: 8px 8px;
                font-size: 14px;
            }

            .about-intro-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px 0;
            }

            .stat-item:nth-child(2) {
                border-right: none;
            }
        }

        @media (max-width: 767px) {
            .nav-toggle {
                display: flex;
            }

            .nav-right .search-box {
                display: none;
            }

            .nav-right .btn-accent {
                padding: 8px 12px;
                font-size: 14px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 20px 24px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
                border-top: 1px solid var(--border);
                gap: 4px;
            }

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

            .main-nav .nav-link {
                width: 100%;
                padding: 12px 8px;
                font-size: 17px;
                font-weight: 500;
                border-radius: var(--radius-sm);
            }

            .main-nav .nav-link.active::after {
                left: 8px;
                right: auto;
                width: 32px;
                bottom: auto;
                top: 50%;
                transform: translateY(-50%);
                height: 20px;
                border-radius: 2px;
                background: none;
                border-left: 3px solid var(--accent);
            }

            .page-banner {
                min-height: 240px;
            }

            .page-banner h1 {
                font-size: 26px;
            }

            .page-banner p {
                font-size: 14px;
            }

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

            .stats-strip .stats-grid .stat-item {
                border-right: 1px solid var(--border);
            }

            .stats-strip .stats-grid .stat-item:nth-child(2) {
                border-right: none;
            }

            .stats-strip .stats-grid .stat-item:nth-child(3),
            .stats-strip .stats-grid .stat-item:nth-child(4) {
                border-top: 1px solid var(--border);
            }

            .stat-number {
                font-size: 30px;
            }

            .about-intro,
            .milestones,
            .certificates {
                padding: 48px 0;
            }

            .about-intro h2,
            .section-title-wrap h2 {
                font-size: 23px;
            }

            .timeline::before {
                left: 14px;
                transform: none;
            }

            .timeline-row,
            .timeline-row:nth-child(even) {
                width: 100%;
                margin-left: 0;
                padding: 0 0 28px 42px;
            }

            .timeline-row::before,
            .timeline-row:nth-child(even)::before {
                left: 8px;
                right: auto;
                top: 26px;
            }

            .timeline-card {
                padding: 18px;
            }

            .cert-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .cta-block {
                padding: 48px 12px;
            }

            .cta-block h2 {
                font-size: 23px;
            }

            .cta-block .btn-accent {
                padding: 12px 28px;
                font-size: 15px;
                width: auto;
            }

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

            .footer-bottom {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }
        }