/* roulang page: index */
:root {
            --c-primary: #2D6A7F;
            --c-primary-dark: #1E4D5E;
            --c-primary-light: #4A8FA3;
            --c-primary-bg: #E8F0F3;
            --c-accent: #D9A441;
            --c-accent-hover: #C08D2E;
            --c-bg: #F5F8FA;
            --c-card: #FFFFFF;
            --c-text: #142A33;
            --c-text-secondary: #5B7180;
            --c-border: #DCE4EA;
            --r-lg: 16px;
            --r-md: 12px;
            --r-sm: 10px;
            --shadow: 0 4px 20px rgba(15, 40, 60, 0.06);
            --shadow-hover: 0 8px 32px rgba(15, 40, 60, 0.12);
            --transition: all 0.3s ease;
            --footer-bg: #102A36;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.6;
            background: var(--c-bg);
            color: var(--c-text);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 600;
            color: var(--c-text);
            line-height: 1.3;
            margin: 0 0 0.5em;
        }

        p {
            margin: 0 0 1em;
        }

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

        .section {
            padding: 96px 0;
        }

        .section-head {
            display: flex;
            align-items: baseline;
            gap: 16px;
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 600;
            margin: 0;
            color: var(--c-text);
            letter-spacing: -0.02em;
        }

        .section-head p {
            margin: 0;
            color: var(--c-text-secondary);
            font-size: 15px;
        }

        .section-head .section-num {
            color: var(--c-primary);
            font-weight: 700;
            font-size: 20px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--r-md);
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
            text-align: center;
        }

        .btn-accent {
            background: var(--c-accent);
            color: #fff;
            box-shadow: 0 2px 8px rgba(217, 164, 65, 0.3);
        }

        .btn-accent:hover {
            background: var(--c-accent-hover);
            color: #fff;
            box-shadow: 0 4px 16px rgba(217, 164, 65, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.7);
        }

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

        .btn-dark-outline {
            background: transparent;
            color: var(--c-text);
            border: 1px solid var(--c-border);
        }

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

        .btn:focus-visible,
        .form-control:focus-visible {
            outline: 3px solid rgba(45, 106, 127, 0.35);
            outline-offset: 2px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            background: rgba(255, 255, 255, 0.90);
            backdrop-filter: saturate(180%) blur(12px);
            -webkit-backdrop-filter: saturate(180%) blur(12px);
            border-bottom: 1px solid rgba(220, 228, 234, 0.8);
            display: flex;
            align-items: center;
        }

        .site-header .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .site-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--c-text);
            letter-spacing: 0.01em;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .site-logo i {
            color: var(--c-accent);
            font-size: 22px;
        }

        .site-logo:hover {
            color: var(--c-primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            color: var(--c-text-secondary);
            border-radius: var(--r-sm);
            position: relative;
            font-weight: 500;
        }

        .nav-links li a::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--c-primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.25s ease;
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--c-primary);
        }

        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            transform: scaleX(1);
        }

        .header-cta {
            white-space: nowrap;
        }

        /* ===== Mobile Tabbar ===== */
        .mobile-tabbar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1200;
            display: none;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: saturate(160%) blur(10px);
            border-top: 1px solid var(--c-border);
            padding-bottom: env(safe-area-inset-bottom);
            height: calc(56px + env(safe-area-inset-bottom));
            align-items: stretch;
            box-shadow: 0 -4px 20px rgba(15, 40, 60, 0.05);
        }

        .mobile-tabbar a {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            font-size: 11px;
            color: var(--c-text-secondary);
            padding: 6px 0;
            transition: var(--transition);
            border-radius: 0;
        }

        .mobile-tabbar a i {
            font-size: 18px;
            line-height: 1;
        }

        .mobile-tabbar a.active {
            color: var(--c-primary);
            font-weight: 600;
            background: var(--c-primary-bg);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 82vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            background: linear-gradient(90deg, rgba(16, 42, 54, 0.92) 0%, rgba(16, 42, 54, 0.68) 40%, rgba(16, 42, 54, 0.25) 100%),
                url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

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

        .hero h1 {
            font-size: 48px;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 16px;
            max-width: 680px;
        }

        .hero-sub {
            font-size: 17px;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.9);
            max-width: 480px;
            margin-bottom: 28px;
        }

        .hero-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-scroll-hint {
            position: absolute;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            letter-spacing: 0.08em;
            animation: hintBounce 2s ease-in-out infinite;
            z-index: 2;
        }

        .hero-scroll-hint i {
            animation: hintArrow 1.6s ease-in-out infinite;
        }

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

        @keyframes hintArrow {
            0%,
            100% {
                transform: translateX(0);
            }
            50% {
                transform: translateX(4px);
            }
        }

        /* ===== Library Scroll Card ===== */
        .library-scroll-wrap {
            position: relative;
        }

        .library-scroll {
            display: flex;
            gap: 24px;
            overflow-x: auto;
            padding-bottom: 16px;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }

        .library-scroll::-webkit-scrollbar {
            display: none;
        }

        .library-card {
            flex: 0 0 240px;
            background: var(--c-card);
            border-radius: var(--r-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .library-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

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

        .library-card:hover .card-cover img {
            transform: scale(1.04);
        }

        .library-card .card-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            background: var(--c-accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }

        .library-card .card-body {
            padding: 16px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .library-card .card-body h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 42px;
        }

        .library-card .card-body p {
            font-size: 13px;
            color: var(--c-text-secondary);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .library-card .card-link {
            margin-top: auto;
            font-size: 13px;
            color: var(--c-primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .library-card .card-link:hover {
            color: var(--c-primary-dark);
            gap: 8px;
        }

        /* ===== Hot List ===== */
        .hot-main-card {
            background: var(--c-card);
            border-radius: var(--r-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

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

        .hot-main-card .hot-cover {
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .hot-main-card .hot-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .hot-main-card .hot-body h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .hot-main-card .hot-body p {
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }

        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
            height: 100%;
        }

        .hot-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 16px;
            background: var(--c-card);
            border-radius: var(--r-md);
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .hot-list-item:hover {
            background: var(--c-primary-bg);
            border-color: var(--c-border);
            transform: translateX(4px);
        }

        .hot-list-item .hot-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--c-primary);
            width: 36px;
            text-align: center;
            line-height: 1;
            flex-shrink: 0;
        }

        .hot-list-item .hot-thumb {
            width: 64px;
            height: 48px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .hot-list-item .hot-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hot-list-item .hot-info {
            flex: 1;
            min-width: 0;
        }

        .hot-list-item .hot-info h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 2px;
            white-space: nowrap;
            text-overflow: ellipsis;
            overflow: hidden;
        }

        .hot-list-item .hot-info span {
            font-size: 13px;
            color: var(--c-text-secondary);
            display: block;
            white-space: nowrap;
            text-overflow: ellipsis;
            overflow: hidden;
        }

        .hot-list-item .hot-time {
            font-size: 12px;
            color: var(--c-text-secondary);
            flex-shrink: 0;
            background: var(--c-bg);
            padding: 3px 8px;
            border-radius: 999px;
        }

        /* ===== Topic Section (片单分区) ===== */
        .topic-block {
            background: var(--c-card);
            border-radius: var(--r-lg);
            box-shadow: var(--shadow);
            padding: 28px;
            height: 100%;
            transition: var(--transition);
            border: 1px solid rgba(220, 228, 234, 0.5);
        }

        .topic-block:hover {
            box-shadow: var(--shadow-hover);
        }

        .topic-head {
            margin-bottom: 20px;
            display: flex;
            flex-direction: column;
        }

        .topic-head .topic-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--c-primary);
            letter-spacing: 0.06em;
            margin-bottom: 8px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .topic-head .topic-num::before {
            content: "";
            width: 24px;
            height: 2px;
            background: var(--c-accent);
            border-radius: 2px;
        }

        .topic-head h3 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .topic-head p {
            font-size: 14px;
            color: var(--c-text-secondary);
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .topic-head .topic-enter {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            align-self: flex-start;
        }

        .topic-head .topic-enter:hover {
            gap: 10px;
            color: var(--c-primary-dark);
        }

        .topic-items {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .topic-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px;
            border-radius: var(--r-md);
            background: var(--c-bg);
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .topic-item:hover {
            background: var(--c-primary-bg);
            border-color: var(--c-border);
        }

        .topic-item .topic-thumb {
            width: 56px;
            height: 44px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }

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

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

        .topic-item .topic-info h4 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 2px;
            white-space: nowrap;
            text-overflow: ellipsis;
            overflow: hidden;
        }

        .topic-item .topic-info span {
            font-size: 12px;
            color: var(--c-text-secondary);
            display: block;
            white-space: nowrap;
            text-overflow: ellipsis;
            overflow: hidden;
        }

        .topic-item .topic-arrow {
            color: var(--c-text-secondary);
            flex-shrink: 0;
        }

        /* ===== CTA Section ===== */
        .section-cta {
            position: relative;
            background: linear-gradient(120deg, #102A36 0%, #163A48 55%, #1E4D5E 100%),
                url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            background-blend-mode: overlay;
            padding: 96px 0;
            color: #fff;
        }

        .section-cta .cta-inner {
            max-width: 600px;
        }

        .section-cta h2 {
            font-size: 36px;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.3;
        }

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

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 460px;
            flex-wrap: wrap;
        }

        .cta-form .form-control {
            flex: 1;
            min-width: 200px;
            border-radius: var(--r-md);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            padding: 12px 16px;
            font-size: 15px;
            transition: var(--transition);
        }

        .cta-form .form-control::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .cta-form .form-control:focus {
            background: rgba(255, 255, 255, 0.16);
            border-color: var(--c-accent);
            box-shadow: 0 0 0 3px rgba(217, 164, 65, 0.25);
            outline: none;
        }

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

        .news-item {
            background: var(--c-card);
            border-radius: var(--r-lg);
            box-shadow: var(--shadow);
            padding: 24px;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            border: 1px solid rgba(220, 228, 234, 0.5);
        }

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

        .news-item .news-cate {
            align-self: flex-start;
            font-size: 12px;
            font-weight: 600;
            color: var(--c-primary);
            background: var(--c-primary-bg);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .news-item h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item .news-summary {
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .news-item .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--c-border);
            padding-top: 14px;
        }

        .news-item .news-meta .news-time {
            font-size: 13px;
            color: var(--c-text-secondary);
        }

        .news-item .news-meta a {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-item .news-meta a:hover {
            gap: 8px;
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            color: var(--c-text-secondary);
            background: var(--c-card);
            border-radius: var(--r-lg);
            box-shadow: var(--shadow);
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--c-border);
            border-radius: var(--r-lg) !important;
            background: var(--c-card);
            box-shadow: var(--shadow);
            margin-bottom: 12px;
            overflow: hidden;
        }

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

        .accordion-button {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-text);
            background: var(--c-card);
            border: none;
            box-shadow: none !important;
            line-height: 1.4;
        }

        .accordion-button:not(.collapsed) {
            background: var(--c-primary-bg);
            color: var(--c-primary-dark);
        }

        .accordion-button::after {
            background-image: none;
            content: "+";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 18px;
            color: var(--c-primary);
            transform: none;
            transition: transform 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            width: auto;
            height: auto;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }

        .accordion-body {
            padding: 0 24px 20px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--c-text-secondary);
            background: var(--c-primary-bg);
            border-top: 1px solid rgba(220, 228, 234, 0.6);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, 0.72);
            padding: 64px 0 0;
            margin-top: 0;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .site-footer .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .site-footer .footer-logo i {
            color: var(--c-accent);
        }

        .site-footer p {
            font-size: 14px;
            line-height: 1.6;
            margin-bottom: 16px;
        }

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

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

        .site-footer ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            transition: var(--transition);
        }

        .site-footer ul li a:hover {
            color: var(--c-accent);
            padding-left: 4px;
        }

        .footer-bottom {
            margin-top: 48px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .container {
                max-width: 960px;
            }
        }

        @media (max-width: 991.98px) {
            .site-header {
                height: 64px;
            }

            .nav-links {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .mobile-tabbar {
                display: flex;
            }

            body {
                padding-bottom: calc(56px + env(safe-area-inset-bottom));
            }

            .hero {
                min-height: 60vh;
                padding: 100px 0 60px;
            }

            .hero h1 {
                font-size: 34px;
            }

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

            .section {
                padding: 56px 0;
            }

            .section-head h2 {
                font-size: 26px;
            }

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

            .hot-list-item .hot-time {
                display: none;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .hero h1 {
                font-size: 28px;
            }

            .hero-sub {
                font-size: 14px;
                line-height: 1.5;
            }

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

            .section-head {
                flex-direction: column;
                gap: 4px;
                margin-bottom: 28px;
            }

            .library-card {
                flex-basis: 200px;
            }

            .hot-list-item {
                padding: 12px;
                gap: 10px;
            }

            .hot-list-item .hot-thumb {
                width: 48px;
                height: 40px;
            }

            .hot-list-item .hot-num {
                font-size: 20px;
                width: 28px;
            }

            .topic-block {
                padding: 20px;
            }

            .section-cta {
                padding: 60px 0;
            }

            .section-cta h2 {
                font-size: 28px;
            }

            .cta-form {
                flex-direction: column;
            }

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

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

        @media (max-width: 575.98px) {
            .site-logo {
                font-size: 17px;
            }

            .site-logo i {
                font-size: 18px;
            }

            .hero h1 {
                font-size: 26px;
            }

            .hero-scroll-hint {
                display: none;
            }

            .news-item {
                padding: 18px;
            }

            .news-item h4 {
                font-size: 15px;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #3D7A8C;
            --primary-dark: #2F6373;
            --primary-light: #DCE9EE;
            --accent: #E8A33D;
            --accent-dark: #D18E2C;
            --bg: #F5F8FA;
            --card-bg: #FFFFFF;
            --text: #142A33;
            --text-secondary: #5B7180;
            --border: #DCE4EA;
            --footer-bg: #102A36;
            --footer-text: #9AB4C0;
            --radius: 16px;
            --radius-sm: 12px;
            --shadow-sm: 0 4px 20px rgba(15, 40, 60, 0.06);
            --shadow-hover: 0 8px 32px rgba(15, 40, 60, 0.12);
            --transition: all 0.3s ease;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

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

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

        /* ===== 按钮 ===== */
        .btn {
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 10px 24px;
            transition: var(--transition);
            border: none;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(61, 122, 140, 0.3);
            outline-offset: 2px;
        }

        .btn-accent {
            background-color: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(232, 163, 61, 0.3);
        }

        .btn-accent:hover {
            background-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(232, 163, 61, 0.4);
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: #fff;
        }

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

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

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(220, 228, 234, 0.6);
            height: 72px;
            transition: var(--transition);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            flex-wrap: nowrap;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
        }

        .site-logo i {
            color: var(--primary);
            font-size: 22px;
        }

        .site-logo:hover {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            gap: 30px;
            align-items: center;
            margin: 0;
        }

        .nav-links li a {
            font-size: 15px;
            color: var(--text);
            font-weight: 500;
            padding: 8px 0;
            position: relative;
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }

        .nav-links li a:hover {
            color: var(--primary);
        }

        .nav-links li a:hover::after {
            width: 100%;
        }

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

        .nav-links li a.active::after {
            width: 100%;
        }

        .header-cta {
            white-space: nowrap;
        }

        /* ===== 移动底部 Tab ===== */
        .mobile-bottom-nav {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: #fff;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 56px;
            padding-bottom: env(safe-area-inset-bottom);
            box-shadow: 0 -4px 20px rgba(15, 40, 60, 0.06);
        }

        .bottom-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            padding: 5px 12px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 12px;
            transition: var(--transition);
            min-width: 70px;
        }

        .bottom-nav-item i {
            font-size: 18px;
        }

        .bottom-nav-item:hover,
        .bottom-nav-item.active {
            color: var(--primary);
        }

        .bottom-nav-item.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        @media (max-width: 991.98px) {
            body {
                padding-bottom: calc(56px + env(safe-area-inset-bottom));
            }
            .mobile-bottom-nav {
                display: flex;
            }
            .site-header {
                display: none !important;
            }
        }

        @media (min-width: 992px) {
            .mobile-bottom-nav {
                display: none !important;
            }
            body {
                padding-bottom: 0;
            }
        }

        /* ===== 页头横幅 ===== */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(16, 42, 54, 0.92) 0%, rgba(16, 42, 54, 0.65) 60%, rgba(16, 42, 54, 0.4) 100%),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 160px 0 100px;
            color: #fff;
            margin-top: 0;
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 50px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }

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

        .category-hero h1 {
            font-size: 44px;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.2;
            letter-spacing: 0.02em;
        }

        .category-hero p.lead {
            font-size: 17px;
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 600px;
            color: rgba(255, 255, 255, 0.85);
        }

        .category-hero .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .category-hero .hero-meta {
            margin-top: 40px;
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .category-hero .hero-meta-item {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            padding: 100px 0 20px;
            background: var(--bg);
            margin-bottom: 0;
        }

        .breadcrumb-bar .breadcrumb {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .breadcrumb-bar .breadcrumb a {
            color: var(--text-secondary);
        }

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

        .breadcrumb-bar .breadcrumb .active {
            color: var(--primary);
            font-weight: 500;
        }

        /* ===== 横滑片库 ===== */
        .section-library {
            position: relative;
        }

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

        .section-header .section-tag {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 8px;
        }

        .section-header .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent);
            display: inline-block;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 600;
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 16px;
            margin-top: 8px;
        }

        .horizontal-scroll {
            display: flex;
            gap: 24px;
            overflow-x: auto;
            padding-bottom: 20px;
            scrollbar-width: none;
            -ms-overflow-style: none;
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
        }

        .horizontal-scroll::-webkit-scrollbar {
            display: none;
        }

        .h-scroll-card {
            flex: 0 0 260px;
            background: var(--card-bg);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid rgba(220, 228, 234, 0.5);
        }

        .h-scroll-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .h-scroll-card .cover-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

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

        .h-scroll-card:hover .cover-wrap img {
            transform: scale(1.05);
        }

        .h-scroll-card .badge-corner {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
        }

        .h-scroll-card .card-body {
            padding: 16px;
        }

        .h-scroll-card .card-body h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .h-scroll-card .card-body p {
            font-size: 13px;
            color: var(--text-secondary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-bottom: 12px;
        }

        .card-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .card-link i {
            font-size: 12px;
            transition: transform 0.3s;
        }

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

        /* ===== 主体区块间距 ===== */
        .section {
            padding: 96px 0;
        }

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

        .section-alt {
            background: #fff;
        }

        /* ===== 横向列表卡片 ===== */
        .horizontal-list-card {
            display: flex;
            flex-direction: row;
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            margin-bottom: 24px;
            transition: var(--transition);
            border: 1px solid rgba(220, 228, 234, 0.5);
            min-height: 200px;
        }

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

        .horizontal-list-card .hlc-media {
            flex: 0 0 280px;
            overflow: hidden;
            position: relative;
        }

        .horizontal-list-card .hlc-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
            position: absolute;
            top: 0;
            left: 0;
        }

        .horizontal-list-card:hover .hlc-media img {
            transform: scale(1.04);
        }

        .horizontal-list-card .hlc-content {
            flex: 1;
            padding: 28px 30px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .horizontal-list-card .hlc-content .hlc-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 10px;
            width: fit-content;
        }

        .tag-blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        .tag-amber {
            background: #FDF0DC;
            color: #B87B1E;
        }

        .tag-green {
            background: #E3F2E5;
            color: #2E7D32;
        }

        .tag-gray {
            background: #EEF1F4;
            color: #5B7180;
        }

        .horizontal-list-card .hlc-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .horizontal-list-card .hlc-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .horizontal-list-card .hlc-footer {
            margin-top: 16px;
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .horizontal-list-card .hlc-footer .hlc-meta {
            font-size: 13px;
            color: #9BACB5;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== 步骤流程 ===== */
        .steps-wrap {
            position: relative;
            padding: 20px 0;
        }

        .steps-wrap::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-light), var(--border), var(--primary-light));
        }

        .step-item {
            text-align: center;
            position: relative;
            padding: 0 12px;
        }

        .step-circle {
            width: 64px;
            height: 64px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 20px;
            font-weight: 700;
            box-shadow: 0 6px 20px rgba(61, 122, 140, 0.3);
            border: 4px solid #fff;
            position: relative;
            z-index: 1;
        }

        .step-item:nth-child(even) .step-circle {
            background: var(--accent);
            box-shadow: 0 6px 20px rgba(232, 163, 61, 0.3);
        }

        .step-item h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.5;
            max-width: 220px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 热播/重点推荐 ===== */
        .featured-wrap {
            display: flex;
            gap: 24px;
        }

        .featured-main {
            flex: 0 0 45%;
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            min-height: 320px;
        }

        .featured-main img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }

        .featured-main .fm-overlay {
            position: absolute;
            left: 24px;
            right: 24px;
            bottom: 24px;
            color: #fff;
            z-index: 2;
        }

        .featured-main .fm-overlay .fm-tag {
            display: inline-block;
            background: var(--accent);
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            margin-bottom: 10px;
        }

        .featured-main .fm-overlay h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .featured-main .fm-overlay p {
            font-size: 14px;
            opacity: 0.85;
            margin-bottom: 12px;
        }

        .featured-main::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(to top, rgba(16, 42, 54, 0.85) 0%, rgba(16, 42, 54, 0.4) 60%, transparent 100%);
        }

        .featured-side {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .featured-row {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 16px;
            background: var(--card-bg);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(220, 228, 234, 0.5);
            transition: var(--transition);
            cursor: pointer;
        }

        .featured-row:hover {
            background: var(--primary-light);
            border-color: rgba(61, 122, 140, 0.4);
        }

        .featured-row .fr-num {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            min-width: 40px;
            text-align: center;
            line-height: 1;
        }

        .featured-row .fr-thumb {
            width: 56px;
            height: 56px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .featured-row .fr-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-row .fr-info {
            flex: 1;
            min-width: 0;
        }

        .featured-row .fr-info h5 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .featured-row .fr-info p {
            font-size: 12px;
            color: var(--text-secondary);
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* ===== 适用场景 ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 24px;
            border: 1px solid rgba(220, 228, 234, 0.5);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .scenario-card .sc-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .scenario-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .scenario-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, rgba(16, 42, 54, 0.9) 0%, rgba(16, 42, 54, 0.7) 60%, rgba(16, 42, 54, 0.5) 100%),
                url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            padding: 80px 0;
            color: #fff;
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .cta-section p {
            max-width: 600px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            font-size: 16px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
        }

        .cta-form input {
            flex: 1;
            height: 48px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.12);
            padding: 0 16px;
            color: #fff;
            font-size: 14px;
            transition: var(--transition);
            min-width: 0;
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .cta-form input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(232, 163, 61, 0.25);
            background: rgba(255, 255, 255, 0.18);
        }

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

        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: #fff;
        }

        .faq-accordion .accordion-button {
            font-size: 16px;
            font-weight: 500;
            padding: 18px 24px;
            color: var(--text);
            background: #fff;
            box-shadow: none;
            border: none;
            position: relative;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: #f8fafc;
            color: var(--primary);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(61, 122, 140, 0.2);
        }

        .faq-accordion .accordion-button::after {
            background-image: none;
            content: '+';
            font-family: var(--font-family);
            font-size: 24px;
            font-weight: 300;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.3s;
            color: var(--primary);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            color: var(--accent);
        }

        .faq-accordion .accordion-body {
            padding: 18px 24px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            border-top: 1px solid var(--border);
            background: #fafcfd;
        }

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

        .site-footer .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .site-footer .footer-logo i {
            color: var(--accent);
        }

        .site-footer p {
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
            color: #8FAFBE;
            max-width: 340px;
        }

        .site-footer h5 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .site-footer h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
        }

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

        .site-footer ul li a {
            font-size: 14px;
            color: #8FAFBE;
            transition: var(--transition);
        }

        .site-footer ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            margin-top: 40px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            gap: 8px;
            flex-wrap: wrap;
            max-width: 1200px;
        }

        /* ===== 滚动提示 ===== */
        .scroll-hint {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 36px;
        }

        .scroll-hint i {
            animation: floatY 2s ease infinite;
            color: var(--accent);
        }

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

        /* ===== 移动端响应式 ===== */
        @media (max-width: 991.98px) {
            .section {
                padding: 56px 0;
            }

            .category-hero {
                padding: 120px 0 60px;
            }

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

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

            .section-header h2 {
                font-size: 26px;
            }

            .horizontal-list-card {
                flex-direction: column;
            }

            .horizontal-list-card .hlc-media {
                flex: 0 0 160px;
                position: relative;
                min-height: 160px;
            }

            .horizontal-list-card .hlc-media img {
                position: absolute;
            }

            .featured-wrap {
                flex-direction: column;
            }

            .featured-main {
                flex-basis: auto;
                min-height: 240px;
            }

            .steps-wrap::before {
                display: none;
            }

            .step-item {
                margin-bottom: 24px;
            }

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

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

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

        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .category-hero h1 {
                font-size: 28px;
            }

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

            .horizontal-list-card .hlc-content {
                padding: 20px;
            }

            .horizontal-list-card .hlc-content h3 {
                font-size: 18px;
            }

            .faq-accordion .accordion-button {
                font-size: 14px;
                padding: 14px 16px;
            }

            .faq-accordion .accordion-body {
                padding: 14px 16px;
            }

            .cta-form {
                flex-direction: column;
            }

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

            .footer-bottom .container {
                flex-direction: column;
                gap: 4px;
                font-size: 12px;
            }
        }

        @media (max-width: 575.98px) {
            .h-scroll-card {
                flex: 0 0 220px;
            }

            .featured-row .fr-thumb {
                width: 48px;
                height: 48px;
            }

            .featured-row .fr-num {
                font-size: 22px;
                min-width: 30px;
            }

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

            .category-hero .hero-meta {
                gap: 16px;
                flex-direction: column;
            }
        }

        /* ===== 锚点偏移修正 ===== */
        #library,
        #hot,
        #contact,
        #news {
            scroll-margin-top: 80px;
        }

/* roulang page: article */
:root {
            --primary: #3D6B80;
            --primary-dark: #2C5363;
            --primary-light: #5B8CA0;
            --accent: #E8A44E;
            --accent-dark: #D88F35;
            --bg: #F5F8FA;
            --card-bg: #FFFFFF;
            --text: #142A33;
            --text-muted: #5B7180;
            --border: #DCE4EA;
            --radius: 16px;
            --radius-sm: 12px;
            --radius-xs: 8px;
            --shadow: 0 4px 20px rgba(15, 40, 60, 0.06);
            --shadow-hover: 0 8px 32px rgba(15, 40, 60, 0.12);
            --transition: all 0.3s ease;
            --header-height: 72px;
            --footer-bg: #102A36;
            --section-pad: 96px;
            --section-pad-mobile: 56px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            padding-bottom: calc(56px + env(safe-area-inset-bottom));
        }

        @media (min-width: 992px) {
            body {
                padding-bottom: 0;
            }
        }

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

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

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

        ul, ol {
            list-style: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
            width: 100%;
        }

        section {
            padding: var(--section-pad-mobile) 0;
        }

        @media (min-width: 992px) {
            section {
                padding: var(--section-pad) 0;
            }
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 15px;
            border: 1px solid transparent;
            transition: var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }

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

        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(232, 164, 78, 0.35);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--text);
            border-color: var(--border);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(61, 107, 128, 0.06);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }

        .btn-outline-light:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(61, 107, 128, 0.4);
            outline-offset: 2px;
        }

        .badge {
            display: inline-block;
            background: rgba(61, 107, 128, 0.1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
            line-height: 1.4;
        }

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

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(220, 228, 234, 0.6);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(15, 40, 60, 0.08);
        }

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

        .site-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .site-logo i {
            color: var(--primary);
            font-size: 24px;
        }

        .site-logo:hover {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width 0.3s ease;
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

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

        .header-cta {
            padding: 8px 20px;
            font-size: 14px;
        }

        .mobile-tab {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            display: flex;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border);
            height: calc(56px + env(safe-area-inset-bottom));
            padding-bottom: env(safe-area-inset-bottom);
        }

        @media (min-width: 992px) {
            .mobile-tab {
                display: none;
            }
        }

        .mobile-tab .tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            font-size: 12px;
            color: var(--text-muted);
            padding: 6px 0;
            border-radius: 0;
            transition: var(--transition);
        }

        .mobile-tab .tab-item i {
            font-size: 20px;
            line-height: 1;
            transition: var(--transition);
            padding: 4px;
            border-radius: 50%;
        }

        .mobile-tab .tab-item span {
            font-size: 11px;
            font-weight: 500;
        }

        .mobile-tab .tab-item.active {
            color: var(--primary);
        }

        .mobile-tab .tab-item.active i {
            background: rgba(61, 107, 128, 0.12);
            color: var(--primary);
        }

        .article-hero {
            position: relative;
            padding: calc(var(--header-height) + 48px) 0 64px;
            background-color: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(16, 42, 54, 0.9) 0%, rgba(16, 42, 54, 0.6) 60%, rgba(16, 42, 54, 0.2) 100%);
        }

        .article-hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            gap: 4px;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.7);
        }

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

        .breadcrumb-nav .separator {
            margin: 0 6px;
            opacity: 0.5;
            font-size: 12px;
        }

        .breadcrumb-nav .current {
            color: #fff;
            font-weight: 500;
            max-width: 280px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-hero h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 20px;
            color: #fff;
            letter-spacing: 0.01em;
            max-width: 800px;
        }

        @media (min-width: 768px) {
            .article-hero h1 {
                font-size: 42px;
            }
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px 24px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
        }

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

        .article-meta i {
            color: var(--accent);
            font-size: 14px;
        }

        .article-meta a {
            color: rgba(255, 255, 255, 0.9);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
        }

        .article-meta a:hover {
            color: var(--accent);
            border-color: var(--accent);
        }

        .article-main {
            padding: 56px 0 72px;
        }

        .article-wrap {
            max-width: 900px;
            margin: 0 auto;
        }

        .article-content {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 32px 24px 40px;
            line-height: 1.7;
            color: var(--text);
        }

        @media (min-width: 768px) {
            .article-content {
                padding: 52px 56px 56px;
            }
        }

        .article-content p {
            margin-bottom: 22px;
            line-height: 1.7;
            font-size: 16px;
            text-align: justify;
        }

        .article-content h2 {
            font-size: 26px;
            font-weight: 600;
            margin-top: 44px;
            margin-bottom: 16px;
            color: var(--text);
            line-height: 1.4;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--bg);
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: var(--text);
            line-height: 1.4;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 22px 4px;
            padding-left: 24px;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content li {
            margin-bottom: 10px;
            line-height: 1.7;
        }

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

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg);
            padding: 16px 24px;
            margin: 28px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: normal;
            line-height: 1.6;
        }

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

        .article-content img {
            border-radius: var(--radius-sm);
            margin: 28px 0;
            width: auto;
            max-width: 100%;
            box-shadow: var(--shadow);
        }

        .article-content figure {
            margin: 28px 0;
        }

        .article-content figure img {
            margin: 0 0 8px;
        }

        .article-content figcaption {
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            padding: 0 20px;
        }

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

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

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 28px 0;
            font-size: 14px;
        }

        .article-content th,
        .article-content td {
            border: 1px solid var(--border);
            padding: 12px 16px;
            text-align: left;
        }

        .article-content th {
            background: var(--bg);
            font-weight: 600;
            color: var(--text);
        }

        .article-content td {
            background: #fff;
        }

        .article-content hr {
            border: none;
            border-top: 1px solid var(--border);
            margin: 36px 0;
        }

        .article-back {
            max-width: 900px;
            margin: 32px auto 0;
            padding: 20px 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            border-top: 1px solid var(--border);
        }

        .article-back a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .related-section {
            background: var(--bg);
            padding: var(--section-pad-mobile) 0;
        }

        @media (min-width: 992px) {
            .related-section {
                padding: var(--section-pad) 0;
            }
        }

        .section-head {
            display: flex;
            align-items: baseline;
            gap: 14px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        .section-head .section-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-light);
            letter-spacing: 1px;
            line-height: 1;
            font-style: normal;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 600;
            margin: 0;
            color: var(--text);
        }

        .section-head .section-line {
            flex: 0 1 80px;
            height: 2px;
            background: var(--border);
            border: none;
            margin: 0;
        }

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

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(61, 107, 128, 0.1);
        }

        .related-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg);
        }

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

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

        .related-cover .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
            z-index: 2;
        }

        .related-body {
            padding: 20px 20px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 10px;
        }

        .related-body h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin: 0;
            transition: var(--transition);
        }

        .related-card:hover .related-body h3 {
            color: var(--primary);
        }

        .related-body .related-date {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
        }

        .related-body .related-date i {
            font-size: 13px;
        }

        .not-found-section {
            padding: calc(var(--header-height) + 80px) 0 100px;
            min-height: 60vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .not-found-section .not-found-box {
            text-align: center;
            padding: 56px 40px;
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            max-width: 520px;
            width: 100%;
        }

        .not-found-section .not-found-box i {
            font-size: 48px;
            color: var(--primary-light);
            margin-bottom: 20px;
        }

        .not-found-section .not-found-box h1 {
            font-size: 28px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text);
        }

        .not-found-section .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 28px;
            font-size: 15px;
        }

        .site-footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
            font-size: 14px;
            line-height: 1.7;
        }

        .site-footer .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .site-footer .footer-logo i {
            color: var(--accent);
            font-size: 24px;
        }

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

        .site-footer p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
            max-width: 340px;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

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

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

        .site-footer ul a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            position: relative;
            padding-left: 0;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 48px;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

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

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

        @media (max-width: 767px) {
            .article-hero {
                min-height: 300px;
                padding-top: calc(var(--header-height) + 32px);
                padding-bottom: 40px;
            }

            .article-hero h1 {
                font-size: 26px;
            }

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

            .article-content {
                padding: 28px 20px 36px;
            }

            .article-content p {
                font-size: 15px;
                line-height: 1.7;
            }

            .article-back {
                padding: 16px 4px;
            }

            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
                gap: 4px;
            }
        }

        @media (max-width: 575px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .related-body h3 {
                font-size: 15px;
            }

            .article-content h2 {
                font-size: 22px;
            }

            .article-content h3 {
                font-size: 18px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2E5A6F;
            --primary-dark: #234654;
            --primary-light: #EAF1F4;
            --accent: #E0A458;
            --accent-hover: #C98F3D;
            --bg: #F5F8FA;
            --card-bg: #FFFFFF;
            --text-main: #142A33;
            --text-muted: #5B7180;
            --border: #DCE4EA;
            --radius: 16px;
            --radius-sm: 12px;
            --shadow: 0 4px 20px rgba(15, 40, 60, 0.06);
            --shadow-hover: 0 8px 32px rgba(15, 40, 60, 0.12);
            --transition: all 0.3s ease;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-main);
            background: var(--bg);
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            vertical-align: middle;
        }

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

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

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

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 72px;
            background: rgba(255, 255, 255, 0.92);
            border-bottom: 1px solid rgba(220, 228, 234, 0.7);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            z-index: 1050;
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .site-logo i {
            color: var(--accent);
            font-size: 28px;
            margin-right: 8px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 2px;
        }

        .nav-links li a::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
        }

        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            width: 100%;
        }

        .header-cta {
            padding: 10px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            white-space: nowrap;
        }

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

        .btn-accent:hover,
        .btn-accent:focus {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            box-shadow: 0 6px 18px rgba(224, 164, 88, 0.35);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 160px 0 80px;
            background: linear-gradient(100deg, #102A36 0%, rgba(16, 42, 54, 0.75) 50%, rgba(16, 42, 54, 0.55) 100%),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
        }

        .page-banner .breadcrumb {
            background: transparent;
            padding: 0;
            margin-bottom: 24px;
        }

        .page-banner .breadcrumb-item a {
            color: rgba(255, 255, 255, 0.8);
        }

        .page-banner .breadcrumb-item.active {
            color: var(--accent);
        }

        .page-banner h1 {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.3;
            max-width: 700px;
            margin-bottom: 18px;
        }

        .page-banner p {
            max-width: 600px;
            font-size: 16px;
            margin-bottom: 0;
            color: rgba(255, 255, 255, 0.9);
        }

        .breadcrumb-item+.breadcrumb-item::before {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== Feature Grid Section ===== */
        .feature-grid {
            padding: 96px 0;
        }

        .feature-grid-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 48px;
        }

        .feature-grid-header .section-label {
            font-size: 14px;
            color: var(--accent);
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 8px;
            display: block;
        }

        .feature-grid-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0;
        }

        .feature-grid-header .header-note {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 380px;
        }

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

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

        .feature-card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--primary-light);
        }

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

        .feature-card:hover .feature-card-img img {
            transform: scale(1.04);
        }

        .card-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 255, 255, 0.94);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 50px;
            box-shadow: var(--shadow);
            letter-spacing: 0.3px;
        }

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

        .feature-card-body h3 {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .feature-card-body p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 20px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
        }

        .card-link i {
            transition: transform 0.3s ease;
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

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

        /* ===== Feature Stats ===== */
        .feature-stats {
            background: var(--primary-light);
            padding: 80px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .stats-item {
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 36px 28px;
            height: 100%;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .stats-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .stats-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
        }

        .stats-item h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-main);
        }

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

        /* ===== FAQ ===== */
        .faq-section {
            padding: 96px 0;
        }

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

        .faq-section .section-heading .section-label {
            font-size: 14px;
            color: var(--accent);
            font-weight: 700;
            letter-spacing: 1px;
            display: block;
            margin-bottom: 8px;
        }

        .faq-section .section-heading h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-main);
        }

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

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

        .faq-accordion .accordion-button {
            background: var(--card-bg);
            color: var(--text-main);
            font-size: 17px;
            font-weight: 600;
            padding: 22px 28px;
            border: none;
            box-shadow: none;
            border-radius: var(--radius);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--card-bg);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(46, 90, 111, 0.15);
            border-radius: var(--radius);
        }

        .faq-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232E5A6F'%3e%3cpath fill-rule='evenodd' d='M8 0a1 1 0 0 1 1 1v6h6a1 1 0 1 1 0 2H9v6a1 1 0 1 1-2 0V9H1a1 1 0 0 1 0-2h6V1a1 1 0 0 1 1-1z'/%3e%3c/svg%3e");
            transition: transform 0.3s ease;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }

        .faq-accordion .accordion-body {
            padding: 0 28px 24px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.75;
        }

        /* ===== Category CTA ===== */
        .category-cta {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            margin: 0 0 96px;
            box-shadow: var(--shadow);
            padding: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .category-cta .cta-content h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .category-cta .cta-content p {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .category-cta .btn-outline-primary {
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            white-space: nowrap;
            background: transparent;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: #102A36;
            color: rgba(255, 255, 255, 0.78);
            padding-top: 64px;
            padding-bottom: 0;
        }

        .site-footer .row {
            padding-bottom: 40px;
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-logo i {
            color: var(--accent);
            font-size: 28px;
            margin-right: 8px;
        }

        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 360px;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
        }

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

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

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
        }

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

        .footer-bottom {
            background: rgba(0, 0, 0, 0.15);
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== Mobile Bottom Nav ===== */
        .mobile-bottom-nav {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: #fff;
            border-top: 1px solid var(--border);
            display: none;
            justify-content: space-around;
            align-items: center;
            padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
            z-index: 1100;
            box-shadow: 0 -2px 16px rgba(15, 40, 60, 0.06);
        }

        .mobile-bottom-nav .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 6px 16px;
            border-radius: 12px;
            gap: 2px;
            color: var(--text-muted);
            font-size: 12px;
            transition: var(--transition);
        }

        .mobile-bottom-nav .tab-item i {
            font-size: 20px;
        }

        .mobile-bottom-nav .tab-item:hover,
        .mobile-bottom-nav .tab-item.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .mobile-bottom-nav .tab-item.active i {
            color: var(--accent);
        }

        /* ===== Focus states ===== */
        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible {
            outline: 3px solid rgba(224, 164, 88, 0.6);
            outline-offset: 2px;
            border-radius: 8px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            body {
                padding-bottom: 76px;
            }

            .site-header {
                display: none;
            }

            .mobile-bottom-nav {
                display: flex;
            }

            .page-banner {
                padding: 140px 0 64px;
            }

            .page-banner h1 {
                font-size: 34px;
            }

            .feature-grid,
            .faq-section {
                padding: 64px 0;
            }

            .feature-grid-header h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .page-banner {
                padding: 120px 0 48px;
            }

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

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

            .feature-grid {
                padding: 56px 0;
            }

            .feature-grid-header {
                margin-bottom: 32px;
            }

            .feature-card-body {
                padding: 22px;
            }

            .feature-card-body h3 {
                font-size: 20px;
            }

            .feature-stats {
                padding: 56px 0;
            }

            .stats-item {
                margin-bottom: 16px;
                padding: 28px 20px;
            }

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

            .faq-accordion .accordion-button {
                font-size: 15px;
                padding: 18px 20px;
            }

            .category-cta {
                padding: 32px 24px;
                margin-bottom: 56px;
                flex-direction: column;
                align-items: flex-start;
            }

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

            .site-footer {
                padding-top: 48px;
            }

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

        @media (max-width: 575.98px) {
            .page-banner h1 {
                font-size: 24px;
            }
        }