/* roulang page: index */
:root {
            --color-primary: #C2410C;
            --color-primary-hover: #9A3412;
            --color-secondary: #0F766E;
            --color-secondary-hover: #115E59;
            --color-accent: #F59E0B;
            --color-bg: #FAF7F2;
            --color-surface: #FFFFFF;
            --color-surface-alt: #F5F1EA;
            --color-dark: #292524;
            --color-text: #292524;
            --color-text-muted: #79716B;
            --color-border: #E7E2DA;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 8px rgba(41,37,36,.06);
            --shadow-md: 0 8px 24px rgba(41,37,36,.08);
            --shadow-lg: 0 16px 40px rgba(41,37,36,.12);
            --space-section: 80px;
            --container-max: 1200px;
        }

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 600;
            line-height: 1.3;
            letter-spacing: -0.3px;
            margin: 0 0 12px;
        }

        h1 {
            font-size: clamp(1.9rem, 4vw, 2.9rem);
            letter-spacing: -0.5px;
        }

        h2 {
            font-size: clamp(1.5rem, 2.8vw, 2rem);
            margin-bottom: 20px;
        }

        h3 {
            font-size: 1.1rem;
        }

        p {
            margin-bottom: 16px;
            max-width: 640px;
        }

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

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

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

        .container {
            max-width: var(--container-max);
            padding: 0 24px;
        }

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

        .section-head {
            margin-bottom: 36px;
        }

        .section-head .section-sub {
            color: var(--color-text-muted);
            font-size: 14px;
            max-width: 640px;
        }

        .section-title {
            position: relative;
            padding-bottom: 12px;
        }

        .section-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }

        .section-link {
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
        }

        .section-link i {
            margin-left: 4px;
            transition: transform .2s;
        }

        .section-link:hover i {
            transform: translateX(3px);
        }

        .btn {
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 500;
            padding: 12px 24px;
            border: none;
            transition: all .2s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn:focus,
        .btn:focus-visible {
            outline: 2px solid rgba(194, 65, 12, .4);
            outline-offset: 2px;
            box-shadow: none;
        }

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

        .btn-primary-custom:hover {
            background: var(--color-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-secondary-custom {
            background: transparent;
            color: var(--color-secondary);
            border: 1.5px solid var(--color-secondary);
        }

        .btn-secondary-custom:hover {
            background: var(--color-secondary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .badge-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(245, 158, 11, .15);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            border: 1px solid rgba(245, 158, 11, .3);
        }

        .card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(194, 65, 12, .3);
        }

        /* ===== 导航 ===== */
        .site-header {
            position: relative;
            z-index: 100;
            padding-top: 16px;
        }

        .nav-panel {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 14px 20px;
            display: flex;
            align-items: center;
            gap: 20px;
        }

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

        .brand-logo .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(194, 65, 12, .3);
        }

        .brand-logo .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.5px;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: none;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-link-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            white-space: nowrap;
            transition: all .2s ease;
        }

        .nav-link-item i {
            font-size: 13px;
            color: var(--color-text-muted);
            transition: color .2s;
        }

        .nav-link-item:hover {
            background: rgba(194, 65, 12, .08);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

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

        .nav-link-item.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }

        .nav-link-item.active i {
            color: #fff;
        }

        .nav-cta {
            flex-shrink: 0;
            margin-left: 4px;
        }

        .nav-cta .btn {
            padding: 9px 18px;
            font-size: 14px;
        }

        .navbar-toggler {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            background: var(--color-surface);
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text);
            font-size: 18px;
            transition: all .2s;
        }

        .navbar-toggler:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .navbar-toggler .toggler-icon {
            width: 20px;
            height: 2px;
            background: currentColor;
            position: relative;
            transition: all .25s;
        }

        .navbar-toggler .toggler-icon::before,
        .navbar-toggler .toggler-icon::after {
            content: "";
            position: absolute;
            left: 0;
            width: 20px;
            height: 2px;
            background: currentColor;
        }

        .navbar-toggler .toggler-icon::before {
            top: -6px;
        }

        .navbar-toggler .toggler-icon::after {
            top: 6px;
        }

        .mobile-nav {
            display: none;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 16px;
            margin-top: 12px;
        }

        .mobile-nav.open {
            display: block;
        }

        .mobile-nav .nav-link-item {
            display: flex;
            width: 100%;
            margin-bottom: 8px;
            border-radius: var(--radius-md);
        }

        .mobile-nav .nav-cta {
            margin-top: 12px;
        }

        .mobile-nav .nav-cta .btn {
            width: 100%;
        }

        /* ===== Hero ===== */
        .hero-section {
            padding: 40px 0 0;
            position: relative;
        }

        .hero-panel {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 24px;
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            position: relative;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: .08;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            padding: 48px 48px 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }

        .hero-text {
            flex: 1 1 55%;
            min-width: 280px;
        }

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

        .hero-text h1 {
            font-size: clamp(1.9rem, 4vw, 2.9rem);
            margin-bottom: 16px;
        }

        .hero-sub {
            font-size: 16px;
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 32px;
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid var(--color-border);
        }

        .hero-stat .num {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-secondary);
            line-height: 1.1;
        }

        .hero-stat .label {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        .hero-right {
            flex: 1 1 40%;
            min-width: 280px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .countdown-card {
            background: linear-gradient(135deg, #0F766E, #134E4A);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .countdown-card::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            opacity: .12;
        }

        .countdown-card>* {
            position: relative;
        }

        .countdown-title {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            opacity: .95;
        }

        .countdown-title i {
            margin-right: 6px;
        }

        .countdown-row {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 20px;
        }

        .countdown-item {
            background: rgba(255, 255, 255, .12);
            border-radius: var(--radius-md);
            padding: 12px 8px;
            min-width: 68px;
            backdrop-filter: blur(4px);
        }

        .countdown-item .val {
            font-size: 26px;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            line-height: 1;
        }

        .countdown-item .unit {
            font-size: 12px;
            opacity: .7;
            margin-top: 4px;
        }

        .countdown-ring {
            width: 110px;
            height: 110px;
            margin: 0 auto 16px;
            position: relative;
        }

        .countdown-ring svg {
            width: 100%;
            height: 100%;
            transform: rotate(-90deg);
        }

        .countdown-ring .ring-bg {
            fill: none;
            stroke: rgba(255, 255, 255, .15);
            stroke-width: 5;
        }

        .countdown-ring .ring-fg {
            fill: none;
            stroke: var(--color-accent);
            stroke-width: 5;
            stroke-linecap: round;
            stroke-dasharray: 314;
            stroke-dashoffset: 0;
            transition: stroke-dashoffset .5s ease;
        }

        .countdown-ring .ring-center {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .countdown-ring .ring-center .prog-pct {
            font-size: 26px;
            font-weight: 700;
        }

        .countdown-ring .ring-center .prog-label {
            font-size: 11px;
            opacity: .7;
        }

        .countdown-yellow-btn {
            background: var(--color-accent);
            color: #1C1917;
            border: none;
            border-radius: var(--radius-full);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            transition: all .2s;
        }

        .countdown-yellow-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, .35);
            color: #1C1917;
        }

        /* 卖点轮播 */
        .carousel-slim {
            background: var(--color-surface-alt);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--color-border);
        }

        .carousel-slim .slick-window {
            min-height: 72px;
            display: flex;
            align-items: center;
        }

        .carousel-slim .slick-title {
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .carousel-slim .slick-text {
            font-size: 14px;
            color: var(--color-text);
            margin: 0;
        }

        .carousel-slim .slick-dots {
            display: none;
        }

        .slick-dots-custom {
            display: flex;
            justify-content: center;
            gap: 6px;
            margin-top: 14px;
        }

        .slick-dots-custom button {
            width: 8px;
            height: 8px;
            border-radius: var(--radius-full);
            border: none;
            background: var(--color-border);
            padding: 0;
            transition: all .2s;
        }

        .slick-dots-custom button.active {
            background: var(--color-primary);
            width: 24px;
        }

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

        .news-list-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border);
            transition: padding-left .2s;
        }

        .news-list-item:hover {
            padding-left: 6px;
        }

        .news-list-item .date {
            font-size: 13px;
            color: var(--color-text-muted);
            white-space: nowrap;
            min-width: 72px;
            padding-top: 2px;
            font-variant-numeric: tabular-nums;
        }

        .news-list-item .news-title {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            line-height: 1.5;
            display: block;
            transition: color .2s;
        }

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

        .news-list-item .news-excerpt {
            font-size: 13px;
            color: var(--color-text-muted);
            margin: 4px 0 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item-link {
            display: block;
        }

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

        .recommend-card {
            display: flex;
            gap: 14px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 14px;
            margin-bottom: 12px;
            transition: all .2s;
        }

        .recommend-card:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(194, 65, 12, .3);
        }

        .recommend-card .rc-num {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-accent);
            min-width: 32px;
            text-align: center;
        }

        .recommend-card .rc-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            line-height: 1.45;
        }

        .recommend-card .rc-date {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* ===== 服务/功能 ===== */
        .feature-card {
            padding: 32px;
            height: 100%;
            display: flex;
            flex-direction: column;
            border-radius: var(--radius-lg);
        }

        .feature-card .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 20px;
            transition: transform .25s;
        }

        .feature-card:hover .feature-icon {
            transform: translateY(-4px);
        }

        .feature-icon.orange {
            background: rgba(194, 65, 12, .1);
            color: var(--color-primary);
        }

        .feature-icon.teal {
            background: rgba(15, 118, 110, .1);
            color: var(--color-secondary);
        }

        .feature-icon.amber {
            background: rgba(245, 158, 11, .15);
            color: #D97706;
        }

        .feature-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .feature-card p {
            color: var(--color-text-muted);
            font-size: 14px;
            margin-bottom: 16px;
            flex: 1;
        }

        .feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .feature-tags .tag {
            background: var(--color-bg);
            border-radius: var(--radius-full);
            padding: 4px 12px;
            font-size: 12px;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
        }

        .feature-grid-lg {
            display: grid;
            grid-template-columns: 1.3fr 1fr .8fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .feature-grid-sm {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
        }

        @media (max-width: 991px) {
            .feature-grid-lg {
                grid-template-columns: 1fr 1fr;
            }
            .feature-grid-sm {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            .feature-grid-lg {
                grid-template-columns: 1fr;
            }
            .feature-grid-sm {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 场景 ===== */
        .scenario-section {
            background: var(--color-surface-alt);
            padding: var(--space-section) 0;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .scenario-item {
            margin-bottom: 56px;
        }

        .scenario-item:last-child {
            margin-bottom: 0;
        }

        .scenario-num {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: 8px;
        }

        .scenario-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .scenario-desc {
            color: var(--color-text-muted);
            font-size: 15px;
            margin-bottom: 16px;
        }

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

        .scenario-tags .tag {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            padding: 5px 14px;
            font-size: 13px;
            color: var(--color-secondary);
            font-weight: 500;
        }

        .scenario-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            background: var(--color-surface);
            height: 100%;
            min-height: 220px;
        }

        .scenario-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 220px;
        }

        /* ===== 案例 ===== */
        .case-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .case-grid-bottom {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        @media (max-width: 767px) {
            .case-grid,
            .case-grid-bottom {
                grid-template-columns: 1fr;
            }
        }

        .case-card {
            border-radius: var(--radius-lg);
            padding: 32px;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: transform .25s, box-shadow .25s;
        }

        .case-card:hover {
            transform: scale(1.01);
            box-shadow: var(--shadow-lg);
        }

        .case-card.dark-media {
            background: #292524;
            color: #fff;
            border-color: transparent;
        }

        .case-card.dark-media::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-4.jpg');
            background-size: cover;
            background-position: center;
            opacity: .35;
        }

        .case-card>* {
            position: relative;
        }

        .case-card .case-industry {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            background: var(--color-accent);
            color: #1C1917;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            margin-bottom: 16px;
        }

        .case-card .case-desc {
            font-size: 16px;
            font-weight: 500;
            margin-bottom: 16px;
            max-width: 360px;
        }

        .case-card .case-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-secondary);
            line-height: 1.1;
        }

        .case-card.dark-media .case-num {
            color: var(--color-accent);
        }

        .case-card .case-num span {
            font-size: 14px;
            font-weight: 400;
            color: var(--color-text-muted);
            margin-left: 4px;
        }

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

        .pricing-wrap {
            background: rgba(15, 118, 110, .07);
            border-radius: 32px;
            padding: 48px 32px;
        }

        .pricing-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            padding: 36px;
            height: 100%;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
            transition: all .25s;
            position: relative;
        }

        .pricing-card.featured {
            border: 2px solid var(--color-primary);
            transform: scale(1.03);
            box-shadow: var(--shadow-lg);
        }

        .pricing-card.featured .badge-recommend {
            position: absolute;
            top: -2px;
            right: 24px;
            background: var(--color-accent);
            color: #1C1917;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 0 0 12px 12px;
        }

        .pricing-card .plan-name {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .pricing-card .plan-desc {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 20px;
        }

        .pricing-card .price-block {
            display: flex;
            align-items: baseline;
            margin-bottom: 24px;
        }

        .pricing-card .price-num {
            font-size: 40px;
            font-weight: 700;
            color: var(--color-secondary);
            line-height: 1;
        }

        .pricing-card .price-unit {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-left: 4px;
        }

        .pricing-card .plan-list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            flex: 1;
        }

        .pricing-card .plan-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 7px 0;
            font-size: 14px;
            color: var(--color-text);
        }

        .pricing-card .plan-list li i {
            color: var(--color-secondary);
            margin-top: 3px;
            font-size: 13px;
            width: 16px;
            text-align: center;
            flex-shrink: 0;
        }

        .pricing-card .plan-list li.disabled {
            color: var(--color-border);
            text-decoration: line-through;
        }

        .pricing-card .plan-list li.disabled i {
            color: var(--color-border);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--space-section) 0;
            background: var(--color-bg);
        }

        .accordion-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border) !important;
            border-radius: var(--radius-lg) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: border-color .2s, box-shadow .2s;
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: var(--color-primary) !important;
            box-shadow: var(--shadow-md);
            background: rgba(194, 65, 12, .02);
        }

        .accordion-button {
            background: transparent;
            color: var(--color-text);
            font-size: 15px;
            font-weight: 500;
            padding: 20px 24px;
            box-shadow: none !important;
            border-radius: var(--radius-lg) !important;
        }

        .accordion-button::after {
            background-image: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f078";
            color: var(--color-primary);
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: transform .25s;
            background: none;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }

        .accordion-button:not(.collapsed) {
            background: rgba(194, 65, 12, .03);
            color: var(--color-primary);
        }

        .accordion-body {
            padding: 0 24px 20px;
            color: var(--color-text-muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .accordion-body p {
            margin: 0;
            max-width: none;
        }

        .faq-contact {
            background: var(--color-surface-alt);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-top: 24px;
            flex-wrap: wrap;
            border: 1px solid var(--color-border);
        }

        .faq-contact p {
            margin: 0;
            font-size: 14px;
            color: var(--color-text-muted);
        }

        .faq-contact a {
            font-weight: 600;
            white-space: nowrap;
        }

        /* ===== App区 ===== */
        .app-section {
            padding: var(--space-section) 0;
        }

        .app-panel {
            background: var(--color-dark);
            border-radius: 28px;
            padding: 56px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }

        .app-panel::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: .1;
        }

        .app-panel>* {
            position: relative;
        }

        .app-panel h2 {
            color: #fff;
        }

        .app-panel p {
            color: rgba(255, 255, 255, .8);
        }

        .app-download-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 24px;
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: var(--radius-md);
            padding: 12px 22px;
            color: #fff;
            transition: all .2s;
            font-size: 14px;
            font-weight: 500;
        }

        .btn-download:hover {
            background: rgba(255, 255, 255, .2);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-download i {
            font-size: 22px;
        }

        .btn-download .dl-small {
            font-size: 11px;
            opacity: .7;
            display: block;
            line-height: 1.2;
        }

        .btn-download .dl-main {
            font-size: 14px;
            font-weight: 600;
            line-height: 1.2;
        }

        .app-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
            margin-top: 32px;
        }

        @media (max-width: 640px) {
            .app-features {
                grid-template-columns: 1fr;
            }
        }

        .app-feature-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .85);
        }

        .app-feature-item i {
            color: var(--color-accent);
            margin-top: 3px;
        }

        /* ===== 关于 ===== */
        .about-section {
            padding: var(--space-section) 0;
            border-top: 1px solid var(--color-border);
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
        }

        @media (max-width: 767px) {
            .about-content {
                grid-template-columns: 1fr;
            }
        }

        .about-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            min-height: 280px;
            background: var(--color-surface-alt);
            border: 1px solid var(--color-border);
        }

        .about-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
        }

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

        .about-values {
            display: flex;
            gap: 24px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .about-value {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
        }

        .about-value i {
            color: var(--color-primary);
            font-size: 18px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding-bottom: var(--space-section);
        }

        .cta-banner {
            background: linear-gradient(100deg, rgba(194, 65, 12, .9), rgba(41, 37, 36, .85)), url('/assets/images/backpic/back-6.jpg') center/cover no-repeat;
            border-radius: 28px;
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-banner h2 {
            color: #fff;
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            margin-bottom: 12px;
        }

        .cta-banner p {
            color: rgba(255, 255, 255, .85);
            margin: 0 auto 28px;
            max-width: 520px;
            font-size: 15px;
        }

        .cta-banner .btn-white {
            background: #fff;
            color: var(--color-primary);
            border-radius: var(--radius-full);
            padding: 14px 32px;
            font-weight: 600;
            transition: all .2s;
            border: none;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .cta-banner .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, .2);
            color: var(--color-primary-hover);
            background: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #1C1917;
            color: rgba(255, 255, 255, .8);
            padding: 64px 0 32px;
            margin-top: 40px;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 20px;
        }

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

        .site-footer .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
        }

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

        .site-footer .footer-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 260px;
        }

        .site-footer .social-links {
            display: flex;
            gap: 10px;
        }

        .site-footer .social-links a {
            width: 36px;
            height: 36px;
            background: rgba(255, 255, 255, .08);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, .7);
            font-size: 15px;
            transition: all .2s;
        }

        .site-footer .social-links a:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }

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

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

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: color .2s;
        }

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

        .site-footer .footer-contact p {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 8px;
        }

        .site-footer .footer-contact i {
            margin-right: 6px;
            color: var(--color-accent);
            width: 16px;
        }

        .copyright-row {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 24px;
            margin-top: 48px;
            text-align: center;
        }

        .copyright-row p {
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
            margin: 0;
            max-width: none;
        }

        /* ===== 分类页专用 ===== */
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
            padding: 20px 0 0;
        }

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

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

        .breadcrumb-custom .sep {
            color: var(--color-border);
        }

        .category-hero {
            padding: 24px 0 48px;
        }

        .category-hero .cat-hero-panel {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 24px;
            padding: 40px;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }

        .category-hero .cat-hero-text {
            flex: 1 1 55%;
            min-width: 280px;
            position: relative;
        }

        .category-hero .cat-hero-text h1 {
            font-size: clamp(1.7rem, 3.4vw, 2.4rem);
            margin-bottom: 16px;
        }

        .category-hero .cat-hero-desc {
            color: var(--color-text-muted);
            margin-bottom: 24px;
        }

        .cat-hero-stats {
            display: flex;
            gap: 32px;
        }

        .cat-hero-stats .stat-item {
            text-align: left;
        }

        .cat-hero-stats .stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-secondary);
        }

        .cat-hero-stats .stat-label {
            font-size: 13px;
            color: var(--color-text-muted);
        }

        .category-hero .cat-hero-media {
            flex: 1 1 38%;
            min-width: 260px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border);
            background: var(--color-surface-alt);
            min-height: 220px;
        }

        .category-hero .cat-hero-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 220px;
        }

        .cat-hero-media .img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent, rgba(0, 0, 0, .55));
            display: flex;
            align-items: flex-end;
            padding: 20px;
            color: #fff;
            font-size: 14px;
        }

        .cat-hero-media .img-overlay i {
            margin-right: 8px;
        }

        /* 标签筛选 */
        .filter-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 32px;
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--color-border);
            background: var(--color-surface);
            color: var(--color-text);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all .2s;
        }

        .filter-chip:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(194, 65, 12, .04);
        }

        .filter-chip.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }

        /* 分类子项列表 */
        .sub-list-section {
            margin-bottom: 48px;
        }

        .sub-item {
            display: flex;
            gap: 20px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 16px;
            padding: 24px;
            margin-bottom: 12px;
            transition: all .2s;
        }

        .sub-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(194, 65, 12, .3);
        }

        .sub-item .sub-content {
            flex: 1 1 70%;
        }

        .sub-item .sub-media {
            flex: 1 1 30%;
            border-radius: var(--radius-md);
            overflow: hidden;
            min-height: 100px;
            background: var(--color-surface-alt);
        }

        .sub-item .sub-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 100px;
        }

        .sub-item .sub-title {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .sub-item .sub-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 10px;
        }

        .sub-item .sub-meta {
            display: flex;
            gap: 12px;
            font-size: 13px;
            color: var(--color-text-muted);
        }

        .sub-item .sub-meta i {
            color: var(--color-primary);
            margin-right: 4px;
        }

        @media (max-width: 640px) {
            .sub-item {
                flex-direction: column;
            }
            .sub-item .sub-media {
                min-height: 140px;
            }
        }

        /* 时间线 */
        .timeline-section {
            padding: 48px 0;
            border-top: 1px solid var(--color-border);
        }

        .timeline-list {
            position: relative;
            margin-left: 20px;
        }

        .timeline-list::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(180deg, var(--color-primary), var(--color-border), transparent);
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding: 0 0 28px 36px;
        }

        .timeline-item::before {
            content: "";
            position: absolute;
            left: -2px;
            top: 6px;
            width: 12px;
            height: 12px;
            background: var(--color-primary);
            border-radius: 50%;
            border: 3px solid var(--color-bg);
            box-shadow: 0 0 0 2px rgba(194, 65, 12, .3);
        }

        .timeline-item .tl-date {
            font-size: 13px;
            color: var(--color-secondary);
            font-weight: 600;
            margin-bottom: 4px;
            font-variant-numeric: tabular-nums;
        }

        .timeline-item .tl-title {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .timeline-item .tl-text {
            font-size: 14px;
            color: var(--color-text-muted);
            margin: 0;
        }

        /* ===== 响应式优化 ===== */
        @media (max-width: 991px) {
            .nav-panel {
                padding: 14px 16px;
            }
            .nav-links {
                gap: 6px;
            }
            .nav-link-item {
                padding: 7px 12px;
                font-size: 13px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --space-section: 48px;
            }

            .section {
                padding: 48px 0;
            }

            .hero-inner {
                padding: 28px 20px;
            }

            .hero-panel {
                border-radius: 20px;
            }

            .hero-right {
                margin-top: 8px;
            }

            .countdown-card {
                padding: 24px 16px;
            }

            .countdown-item {
                min-width: 56px;
                padding: 10px 6px;
            }

            .countdown-item .val {
                font-size: 20px;
            }

            .app-panel {
                padding: 32px 24px;
            }

            .cta-banner {
                padding: 40px 24px;
                border-radius: 20px;
            }

            .pricing-wrap {
                padding: 32px 16px;
            }

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

            .case-grid-bottom {
                grid-template-columns: 1fr;
            }

            .category-hero .cat-hero-panel {
                padding: 28px 20px;
            }

            .sub-item {
                flex-direction: column;
            }

            .sub-item .sub-media {
                min-height: 130px;
            }

            .news-list-item {
                flex-direction: column;
                gap: 6px;
            }

            .news-list-item .date {
                min-width: auto;
            }

            .cat-hero-stats {
                gap: 20px;
                flex-wrap: wrap;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .hero-stats {
                gap: 20px;
            }

            .hero-stat .num {
                font-size: 22px;
            }

            .countdown-row {
                gap: 8px;
            }

            .countdown-item {
                min-width: 52px;
                padding: 8px 4px;
            }

            .countdown-item .val {
                font-size: 18px;
            }

            .feature-grid-lg,
            .feature-grid-sm {
                gap: 14px;
            }

            .feature-card {
                padding: 24px;
            }

            .btn {
                width: 100%;
            }

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

            .app-download-btns {
                flex-direction: column;
            }

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

            .filter-chip {
                padding: 7px 14px;
                font-size: 13px;
            }

            .sub-item {
                padding: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #C2410C;
            --color-primary-hover: #9A3412;
            --color-secondary: #0F766E;
            --color-secondary-hover: #115E59;
            --color-accent: #F59E0B;
            --color-bg: #FAF7F2;
            --color-surface: #FFFFFF;
            --color-surface-alt: #F5F1EA;
            --color-dark: #292524;
            --color-text: #292524;
            --color-text-muted: #79716B;
            --color-border: #E7E2DA;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 8px rgba(41, 37, 36, .06);
            --shadow-md: 0 8px 24px rgba(41, 37, 36, .08);
            --shadow-lg: 0 16px 40px rgba(41, 37, 36, .12);
            --space-section: 80px;
            --container-max: 1200px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--color-primary-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: var(--container-max);
            padding: 0 24px;
        }
        .section {
            padding: var(--space-section) 0;
        }
        .section-head {
            margin-bottom: 36px;
        }
        .section-kicker {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--color-primary);
            text-transform: uppercase;
            margin-bottom: 8px;
            background: rgba(194, 65, 12, .08);
            padding: 2px 12px;
            border-radius: var(--radius-full);
        }
        .section-title {
            position: relative;
            padding-bottom: 12px;
            margin-bottom: 12px;
        }
        .section-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }
        .section-sub {
            color: var(--color-text-muted);
            font-size: 14px;
            max-width: 640px;
        }
        .section-link {
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
        }
        .section-link i {
            margin-left: 4px;
            transition: transform .2s;
        }
        .section-link:hover i {
            transform: translateX(3px);
        }
        .btn {
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 500;
            padding: 12px 24px;
            border: none;
            transition: all .2s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn:focus,
        .btn:focus-visible {
            outline: 2px solid rgba(194, 65, 12, .4);
            outline-offset: 2px;
            box-shadow: none;
        }
        .btn-primary-custom {
            background: var(--color-primary);
            color: #fff;
        }
        .btn-primary-custom:hover {
            background: var(--color-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-secondary-custom {
            background: transparent;
            color: var(--color-secondary);
            border: 1.5px solid var(--color-secondary);
        }
        .btn-secondary-custom:hover {
            background: var(--color-secondary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-cta-light {
            background: #fff;
            color: var(--color-primary);
        }
        .btn-cta-light:hover {
            background: #f5f0ea;
            color: var(--color-primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .18);
        }
        .badge-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(245, 158, 11, .15);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            border: 1px solid rgba(245, 158, 11, .3);
        }
        .card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(194, 65, 12, .3);
        }
        /* ===== 导航 ===== */
        .site-header {
            position: relative;
            z-index: 100;
            padding-top: 16px;
        }
        .nav-panel {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 14px 20px;
            display: flex;
            align-items: center;
            gap: 20px;
            position: relative;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-logo .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(194, 65, 12, .3);
        }
        .brand-logo .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.5px;
        }
        .brand-logo .brand-text span {
            color: var(--color-primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .nav-links::-webkit-scrollbar {
            display: none;
        }
        .nav-link-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            transition: all .2s ease;
            white-space: nowrap;
        }
        .nav-link-item:hover {
            background: rgba(194, 65, 12, .08);
            color: var(--color-primary);
            border-color: var(--color-primary);
            transform: translateY(-1px);
        }
        .nav-link-item.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            box-shadow: 0 4px 12px rgba(194, 65, 12, .3);
        }
        .nav-link-item.active:hover {
            color: #fff;
            background: var(--color-primary-hover);
        }
        .nav-cta {
            flex-shrink: 0;
            padding: 8px 18px;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 8px 12px;
            font-size: 18px;
            color: var(--color-text);
            cursor: pointer;
            transition: all .2s;
        }
        .nav-toggle:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        /* ===== 面包屑 ===== */
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-text-muted);
        }
        .breadcrumb-nav a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-sep {
            color: var(--color-border);
            font-size: 12px;
        }
        .breadcrumb-nav .breadcrumb-current {
            color: var(--color-text);
            font-weight: 600;
        }
        /* ===== 分类 Hero ===== */
        .category-hero {
            padding: 30px 0 20px;
        }
        .hero-panel {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
        }
        .hero-text {
            padding: 48px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            height: 100%;
        }
        .hero-text h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin: 18px 0 16px;
        }
        .hero-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text-muted);
            max-width: 520px;
            margin-bottom: 28px;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }
        .stat-item {
            text-align: left;
        }
        .stat-item strong {
            font-size: 30px;
            font-weight: 700;
            color: var(--color-secondary);
            display: block;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .stat-item span {
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .hero-visual {
            position: relative;
            min-height: 400px;
            height: 100%;
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
            overflow: hidden;
            display: flex;
            align-items: flex-end;
        }
        .hero-visual-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
        }
        .hero-visual-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(41, 37, 36, .1) 0%, rgba(41, 37, 36, .55) 100%);
        }
        .hero-visual-content {
            position: relative;
            z-index: 2;
            padding: 32px;
            width: 100%;
        }
        .visual-card-top {
            margin-bottom: 24px;
        }
        .visual-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .2);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, .3);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--radius-full);
        }
        .visual-data {
            background: rgba(255, 255, 255, .16);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: var(--radius-md);
            padding: 8px 16px;
        }
        .visual-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .18);
            font-size: 14px;
            color: #fff;
        }
        .visual-row:last-child {
            border-bottom: none;
        }
        .visual-row em {
            font-style: normal;
            font-size: 12px;
            background: rgba(245, 158, 11, .3);
            padding: 2px 10px;
            border-radius: var(--radius-full);
            white-space: nowrap;
        }
        /* ===== 标签筛选 ===== */
        .filter-section {
            padding: 20px 0 10px;
        }
        .filter-panel {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-muted);
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            padding: 6px 16px;
            transition: all .2s ease;
        }
        .filter-tag:hover {
            background: rgba(194, 65, 12, .08);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .filter-tag.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            box-shadow: 0 2px 8px rgba(194, 65, 12, .25);
        }
        /* ===== 分类子项列表 ===== */
        .sub-list-section {
            padding: 60px 0 40px;
        }
        .sub-list {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 8px 32px;
        }
        .sub-item {
            padding: 32px 0;
            border-bottom: 1px solid var(--color-border);
        }
        .sub-item:first-child {
            padding-top: 24px;
        }
        .sub-item:last-child {
            border-bottom: none;
            padding-bottom: 24px;
        }
        .sub-content {
            padding-right: 16px;
        }
        .sub-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-secondary);
            background: rgba(15, 118, 110, .08);
            padding: 4px 14px;
            border-radius: var(--radius-full);
            margin-bottom: 12px;
        }
        .sub-content h3 {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--color-text);
        }
        .sub-content p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--color-text-muted);
            max-width: 620px;
            margin-bottom: 14px;
        }
        .sub-labels {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .sub-labels span {
            font-size: 12px;
            color: var(--color-primary);
            background: rgba(194, 65, 12, .08);
            padding: 3px 12px;
            border-radius: var(--radius-full);
            border: 1px solid rgba(194, 65, 12, .1);
        }
        .sub-media {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            height: 100%;
            min-height: 140px;
            display: flex;
            align-items: center;
        }
        .sub-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 140px;
        }
        /* ===== 时间线 ===== */
        .timeline-section {
            padding: 40px 0 60px;
        }
        .timeline-list {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 16px 32px;
        }
        .timeline-item {
            display: flex;
            gap: 28px;
            padding: 22px 0;
            border-bottom: 1px solid var(--color-border);
        }
        .timeline-item:last-child {
            border-bottom: none;
        }
        .timeline-node {
            width: 110px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .timeline-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(194, 65, 12, .18);
            flex-shrink: 0;
        }
        .timeline-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-muted);
            white-space: nowrap;
        }
        .timeline-body h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--color-text);
        }
        .timeline-body p {
            font-size: 14px;
            color: var(--color-text-muted);
            max-width: 720px;
        }
        /* ===== CTA 横幅 ===== */
        .cta-section {
            padding: 20px 0 80px;
        }
        .cta-banner {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            text-align: center;
            padding: 64px 32px;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(194, 65, 12, .4), rgba(41, 37, 36, .4));
        }
        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 600px;
            margin: 0 auto;
            color: #fff;
        }
        .cta-content h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .cta-content p {
            font-size: 15px;
            opacity: .95;
            margin-bottom: 28px;
        }
        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-dark);
            color: rgba(255, 255, 255, .85);
            padding: 64px 0 0;
            margin-top: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
        }
        .footer-brand .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            max-width: 320px;
            margin-bottom: 20px;
        }
        .social-links {
            display: flex;
            gap: 10px;
        }
        .social-links a {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            transition: all .2s;
        }
        .social-links a:hover {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: var(--color-dark);
            transform: translateY(-2px);
        }
        .site-footer h5 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: color .2s;
        }
        .footer-links a:hover {
            color: var(--color-accent);
        }
        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact i {
            width: 16px;
            color: var(--color-accent);
        }
        .copyright-row {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 20px 0;
            margin-top: 40px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }
        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .nav-panel {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: inline-flex;
                margin-left: auto;
            }
            .nav-cta {
                display: none;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                order: 3;
                background: var(--color-bg);
                border-radius: var(--radius-md);
                padding: 8px;
                border: 1px solid var(--color-border);
                gap: 6px;
                flex: 0 0 100%;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link-item {
                width: 100%;
                justify-content: flex-start;
            }
            .hero-text {
                padding: 32px 28px;
            }
            .hero-text h1 {
                font-size: 32px;
            }
            .hero-visual {
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
                min-height: 260px;
            }
            .hero-stats {
                gap: 24px;
            }
            .stat-item strong {
                font-size: 24px;
            }
            .sub-list {
                padding: 8px 20px;
            }
            .timeline-list {
                padding: 12px 20px;
            }
            .timeline-item {
                flex-direction: column;
                gap: 6px;
            }
            .timeline-node {
                width: auto;
            }
            .cta-section {
                padding: 20px 0 60px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --space-section: 48px;
            }
            .section-head {
                margin-bottom: 24px;
            }
            .hero-text {
                padding: 28px 20px;
            }
            .hero-text h1 {
                font-size: 28px;
            }
            .hero-visual {
                min-height: 220px;
            }
            .filter-panel {
                padding: 14px 16px;
            }
            .sub-item .row {
                flex-direction: column-reverse;
            }
            .sub-media {
                min-height: 120px;
            }
            .sub-media img {
                min-height: 120px;
                max-height: 220px;
            }
            .sub-list {
                border-radius: var(--radius-md);
            }
            .timeline-section {
                padding: 24px 0 48px;
            }
            .cta-banner {
                padding: 40px 20px;
            }
            .cta-content h2 {
                font-size: 24px;
            }
            .footer-brand .brand-text {
                font-size: 18px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .nav-panel {
                padding: 12px 14px;
                gap: 12px;
            }
            .brand-logo .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .brand-logo .brand-text {
                font-size: 18px;
            }
            .hero-text h1 {
                font-size: 24px;
            }
            .hero-stats {
                gap: 16px;
            }
            .stat-item strong {
                font-size: 20px;
            }
            .sub-content h3 {
                font-size: 18px;
            }
            .sub-content p {
                font-size: 13px;
            }
            .visual-data {
                padding: 4px 12px;
            }
            .visual-row {
                font-size: 13px;
            }
            .site-footer {
                padding-top: 48px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}