/* roulang page: index */
:root {
            --primary: #C84028;
            --primary-dark: #A93521;
            --dark: #18181A;
            --bg: #F7F5F2;
            --white: #FFFFFF;
            --muted: #6B6B60;
            --border: #E4E1DC;
            --success: #2D7A52;
            --warning: #B58B2E;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.08);
            --transition: 0.25s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--dark);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        .container-custom {
            max-width: 1240px;
            padding: 0 24px;
            margin: 0 auto;
        }
        .section-padding {
            padding: 80px 0;
        }
        @media (max-width: 767px) {
            .section-padding {
                padding: 48px 0;
            }
        }
        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            letter-spacing: 0.01em;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .section-subtitle {
            color: var(--muted);
            font-size: 1rem;
            max-width: 520px;
            line-height: 1.7;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header .section-title {
            position: relative;
            padding-left: 20px;
        }
        .section-header .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 4px;
            height: 28px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-header.text-center .section-title {
            padding-left: 0;
        }
        .section-header.text-center .section-title::before {
            display: none;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            border-radius: var(--radius-pill);
            padding: 0 32px;
            height: 48px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            letter-spacing: 0.02em;
        }
        .btn-primary-custom:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(200, 64, 40, 0.25);
        }
        .btn-primary-custom:active {
            transform: scale(0.98);
        }
        .btn-primary-custom:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--dark);
            border: 1px solid var(--dark);
            border-radius: var(--radius-pill);
            padding: 0 32px;
            height: 48px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-outline-custom:hover {
            background: rgba(24, 24, 26, 0.04);
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline-custom:focus-visible {
            outline: 2px solid var(--dark);
            outline-offset: 2px;
        }
        .tag-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(200, 64, 40, 0.12);
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .tag-badge-dark {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            letter-spacing: 0.02em;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        /* ====== NAV ====== */
        .main-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(228, 225, 220, 0.7);
            transition: box-shadow 0.3s ease, background 0.3s ease;
        }
        .main-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 34px;
            height: 34px;
            border: 2px solid var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            transform: rotate(45deg);
            position: relative;
            background: transparent;
            flex-shrink: 0;
        }
        .brand-icon::after {
            content: '';
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 2px;
            transform: rotate(45deg);
        }
        .brand-text {
            font-size: 1.1rem;
            letter-spacing: 0.02em;
            line-height: 1.2;
            white-space: nowrap;
        }
        .brand-text .brand-main {
            font-weight: 800;
            color: var(--dark);
        }
        .brand-text .brand-sub {
            font-weight: 400;
            color: var(--muted);
            font-size: 0.95rem;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link-custom {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--dark);
            position: relative;
            transition: color 0.25s ease;
            border-radius: var(--radius-sm);
        }
        .nav-link-custom::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.25s ease;
        }
        .nav-link-custom:hover {
            color: var(--primary);
        }
        .nav-link-custom:hover::after {
            transform: scaleX(1);
        }
        .nav-link-custom.active {
            font-weight: 700;
            color: var(--primary);
        }
        .nav-link-custom.active::after {
            transform: scaleX(1);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            position: relative;
            width: 200px;
        }
        .search-box input {
            width: 100%;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 40px 0 16px;
            font-size: 0.875rem;
            background: var(--white);
            transition: var(--transition);
            outline: none;
        }
        .search-box input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(200, 64, 40, 0.12);
        }
        .search-box .search-btn {
            position: absolute;
            right: 4px;
            top: 4px;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: none;
            background: transparent;
            color: var(--muted);
            border-radius: 6px;
            transition: var(--transition);
        }
        .search-box .search-btn:hover {
            color: var(--primary);
            background: rgba(200, 64, 40, 0.08);
        }
        .header-login {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--dark);
            padding: 6px 8px;
        }
        .header-login:hover {
            color: var(--primary);
        }
        .btn-start {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-pill);
            height: 40px;
            padding: 0 22px;
            font-size: 0.88rem;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .btn-start:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(200, 64, 40, 0.25);
        }
        .navbar-toggler-custom {
            display: none;
            border: none;
            background: transparent;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            color: var(--dark);
            font-size: 1.3rem;
            cursor: pointer;
        }
        .mobile-nav-panel {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 16px 24px 24px;
            box-shadow: 0 12px 20px rgba(0, 0, 0, 0.06);
        }
        .mobile-nav-panel .mobile-nav-item {
            display: block;
            padding: 12px 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--dark);
            border-bottom: 1px solid rgba(228, 225, 220, 0.6);
        }
        .mobile-nav-panel .mobile-nav-item.active {
            color: var(--primary);
            font-weight: 700;
        }
        .mobile-nav-panel .mobile-nav-item:last-child {
            border-bottom: none;
        }
        .mobile-nav-panel .mobile-search {
            margin: 16px 0;
        }
        .mobile-nav-panel .mobile-search input {
            width: 100%;
            height: 44px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 16px;
            font-size: 0.9rem;
        }
        .mobile-nav-panel .mobile-search input:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(200, 64, 40, 0.1);
        }
        .mobile-nav-panel .btn-start {
            width: 100%;
            margin-top: 8px;
        }

        /* ====== HERO ====== */
        .hero {
            position: relative;
            min-height: 100vh;
            background: linear-gradient(rgba(24, 24, 26, 0.93), rgba(24, 24, 26, 0.88)), url('/assets/images/backpic/back-1.webp') center 40% / cover no-repeat;
            display: flex;
            align-items: center;
            color: #fff;
            overflow: hidden;
            padding: 120px 0 80px;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-badge-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 28px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.82);
            padding: 4px 14px 4px 0;
            border-right: 1px solid rgba(255, 255, 255, 0.18);
            letter-spacing: 0.02em;
        }
        .hero-badge:last-child {
            border-right: none;
        }
        .hero-badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }
        .hero-title {
            font-size: clamp(2.4rem, 5vw, 4.2rem);
            font-weight: 800;
            letter-spacing: 0.01em;
            line-height: 1.15;
            margin-bottom: 20px;
            max-width: 560px;
        }
        .hero-title .brand-highlight {
            color: var(--primary);
        }
        .hero-title .hero-title-line2 {
            display: block;
            font-size: clamp(1.3rem, 2.5vw, 2rem);
            font-weight: 500;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 12px;
            letter-spacing: 0.04em;
        }
        .hero-subtitle {
            font-size: 1.05rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.72);
            max-width: 480px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .hero-actions .btn-primary-custom {
            min-width: 160px;
        }
        .hero-actions .btn-outline-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-pill);
            padding: 0 32px;
            height: 48px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .hero-actions .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: #fff;
            color: #fff;
        }
        .hero-visual {
            position: relative;
            z-index: 2;
            display: flex;
            justify-content: flex-end;
            align-items: center;
        }
        .hero-image-wrap {
            position: relative;
            width: 100%;
            max-width: 420px;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
        }
        .hero-image-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(24, 24, 26, 0.2));
            pointer-events: none;
        }
        .hero-image-wrap img {
            width: 100%;
            height: auto;
            aspect-ratio: 4 / 5;
            object-fit: cover;
        }
        .hero-image-deco {
            position: absolute;
            top: -20px;
            right: -20px;
            width: 80px;
            height: 80px;
            border: 1px solid rgba(200, 64, 40, 0.5);
            border-radius: 4px;
            transform: rotate(45deg);
            z-index: 0;
        }
        .hero-scroll-down {
            position: absolute;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 3;
            display: flex;
            flex-direction: column;
            align-items: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.75rem;
            letter-spacing: 0.1em;
            transition: var(--transition);
        }
        .hero-scroll-down:hover {
            color: #fff;
        }
        .hero-scroll-down .scroll-line {
            width: 1px;
            height: 36px;
            background: rgba(255, 255, 255, 0.3);
            margin-top: 8px;
            position: relative;
            overflow: hidden;
        }
        .hero-scroll-down .scroll-line::after {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 12px;
            background: var(--primary);
            animation: scrollDown 2s ease infinite;
        }
        @keyframes scrollDown {
            0% {
                transform: translateY(-12px);
            }
            100% {
                transform: translateY(48px);
            }
        }
        .hero-divider {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40px;
            background: var(--bg);
            border-radius: 40px 40px 0 0;
            z-index: 4;
        }

        /* ====== CMS SECTION ====== */
        .cms-section {
            background: var(--bg);
            padding: 80px 0 56px;
        }
        @media (max-width: 767px) {
            .cms-section {
                padding: 48px 0 32px;
            }
        }
        .cms-section .section-header h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 8px;
        }
        .cms-section .section-header::after {
            content: '';
            display: block;
            width: 48px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            margin-top: 16px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: var(--white);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .news-list-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            border-bottom: 1px solid var(--border);
            transition: background 0.25s ease, padding-left 0.25s ease;
            flex-wrap: wrap;
        }
        .news-list-item:last-child {
            border-bottom: none;
        }
        .news-list-item:hover {
            background: rgba(247, 245, 242, 0.5);
            padding-left: 28px;
        }
        .news-list-item .news-date {
            flex-shrink: 0;
            font-family: Georgia, "Times New Roman", serif;
            font-style: italic;
            font-size: 0.86rem;
            color: var(--muted);
            min-width: 80px;
        }
        .news-list-item .news-body {
            flex: 1;
            min-width: 220px;
        }
        .news-list-item .news-body h3 {
            font-size: 1.02rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 4px;
            transition: color 0.25s ease;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .news-list-item:hover .news-body h3 {
            color: var(--primary);
        }
        .news-list-item .news-body p {
            font-size: 0.86rem;
            color: var(--muted);
            margin: 0;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .news-list-item .news-arrow {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border: 1px solid var(--border);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--muted);
            transition: var(--transition);
            font-size: 0.8rem;
        }
        .news-list-item:hover .news-arrow {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 64, 40, 0.06);
        }
        .empty-state {
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            background: var(--white);
            padding: 60px 20px;
            text-align: center;
            color: var(--muted);
            font-size: 0.95rem;
            min-height: 240px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
        }
        .empty-state i {
            font-size: 2rem;
            color: var(--border);
        }
        .empty-state::before {
            content: '';
            display: block;
            width: 40px;
            height: 40px;
            border: 2px solid var(--border);
            border-radius: 8px;
            transform: rotate(45deg);
            margin-bottom: 8px;
        }

        /* ====== FEATURES ====== */
        .features-section {
            background: var(--white);
            padding: 80px 0;
            border-top: 1px solid var(--border);
        }
        @media (max-width: 767px) {
            .features-section {
                padding: 48px 0;
            }
        }
        .feature-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 28px;
            height: 100%;
            position: relative;
            transition: var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .feature-card:hover .feature-icon {
            border-color: var(--primary);
            color: var(--primary);
        }
        .feature-card .feature-icon {
            width: 52px;
            height: 52px;
            border: 1px solid var(--dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--dark);
            margin-bottom: 24px;
            transition: var(--transition);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .feature-card p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: var(--muted);
            margin-bottom: 20px;
        }
        .feature-card .feature-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .feature-card .feature-link i {
            font-size: 0.75rem;
            transition: transform 0.25s ease;
        }
        .feature-card .feature-link:hover {
            color: var(--primary);
        }
        .feature-card .feature-link:hover i {
            transform: translateX(4px);
        }
        .feature-card-dark {
            background: var(--dark);
            border-color: var(--dark);
            color: #fff;
        }
        .feature-card-dark p {
            color: rgba(255, 255, 255, 0.68);
        }
        .feature-card-dark .feature-icon {
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
        }
        .feature-card-dark .feature-link {
            color: var(--primary);
        }
        .feature-card-dark:hover {
            box-shadow: 0 20px 40px rgba(24, 24, 26, 0.25);
        }
        .feature-card-dark .feature-link:hover {
            color: #fff;
        }
        .feature-card-accent {
            border-left: 3px solid var(--primary);
        }

        /* ====== SCENARIO ====== */
        .scenario-section {
            background: var(--bg);
            padding: 80px 0;
        }
        @media (max-width: 767px) {
            .scenario-section {
                padding: 48px 0;
            }
        }
        .scenario-image-wrap {
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .scenario-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scenario-steps {
            margin-top: 8px;
        }
        .scenario-step {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border);
            position: relative;
        }
        .scenario-step:last-child {
            border-bottom: none;
        }
        .scenario-step .step-num {
            font-family: Georgia, "Times New Roman", serif;
            font-style: italic;
            font-size: 1.6rem;
            color: var(--primary);
            line-height: 1;
            min-width: 56px;
            font-weight: 700;
        }
        .scenario-step .step-num small {
            display: block;
            font-size: 0.68rem;
            color: var(--muted);
            font-style: normal;
            letter-spacing: 0.1em;
            margin-top: 4px;
            text-transform: uppercase;
        }
        .scenario-step .step-content h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .scenario-step .step-content p {
            font-size: 0.9rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.65;
        }

        /* ====== SOCIAL PROOF ====== */
        .social-section {
            background: var(--white);
            padding: 80px 0;
            border-top: 1px solid var(--border);
        }
        @media (max-width: 767px) {
            .social-section {
                padding: 48px 0;
            }
        }
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 56px;
        }
        @media (max-width: 767px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: var(--bg);
            transition: var(--transition);
        }
        .stat-item:hover {
            border-color: rgba(200, 64, 40, 0.35);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }
        .stat-item .stat-num {
            font-family: Georgia, "Times New Roman", serif;
            font-style: italic;
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--muted);
            margin-top: 8px;
        }
        .testimonial-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            position: relative;
            height: 100%;
            transition: var(--transition);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-sm);
        }
        .testimonial-card .quote-mark {
            font-family: Georgia, serif;
            font-size: 3rem;
            line-height: 1;
            color: var(--primary);
            opacity: 0.35;
            position: absolute;
            top: 18px;
            right: 20px;
        }
        .testimonial-card p {
            font-size: 0.92rem;
            color: var(--dark);
            line-height: 1.7;
            margin-bottom: 16px;
            font-weight: 400;
            position: relative;
            z-index: 1;
        }
        .testimonial-card .testimonial-author {
            font-size: 0.85rem;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .testimonial-card .testimonial-author::before {
            content: '';
            width: 18px;
            height: 1px;
            background: var(--primary);
            display: inline-block;
        }

        /* ====== FAQ ====== */
        .faq-section {
            background: var(--bg);
            padding: 80px 0;
            border-top: 1px solid var(--border);
        }
        @media (max-width: 767px) {
            .faq-section {
                padding: 48px 0;
            }
        }
        .faq-wrap {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-wrap .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--border);
            border-radius: 0;
        }
        .faq-wrap .accordion-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-wrap .accordion-button {
            background: transparent;
            box-shadow: none;
            padding: 20px 8px;
            font-size: 1.02rem;
            font-weight: 600;
            color: var(--dark);
            font-family: var(--font-sans);
            border-radius: 0;
            transition: var(--transition);
            position: relative;
        }
        .faq-wrap .accordion-button::after {
            background-image: none;
            content: '+';
            font-size: 1.4rem;
            color: var(--dark);
            font-weight: 300;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            transition: transform 0.25s ease;
        }
        .faq-wrap .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            color: var(--primary);
        }
        .faq-wrap .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: transparent;
            box-shadow: none;
        }
        .faq-wrap .accordion-button:hover {
            color: var(--primary);
        }
        .faq-wrap .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(200, 64, 40, 0.3);
            outline-offset: -2px;
        }
        .faq-wrap .accordion-body {
            padding: 0 8px 20px;
            font-size: 0.92rem;
            line-height: 1.75;
            color: var(--muted);
        }

        /* ====== CTA BANNER ====== */
        .cta-banner {
            background: var(--dark);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
            color: #fff;
        }
        @media (max-width: 767px) {
            .cta-banner {
                padding: 56px 0;
            }
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transform: rotate(45deg);
            border-radius: 8px;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -80px;
            width: 260px;
            height: 260px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transform: rotate(30deg);
            border-radius: 16px;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
            text-align: center;
        }
        .cta-content h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-content p {
            color: rgba(255, 255, 255, 0.68);
            font-size: 1rem;
            margin-bottom: 32px;
        }
        .cta-content .btn-primary-custom {
            min-width: 180px;
        }

        /* ====== FOOTER ====== */
        .site-footer {
            background: var(--dark);
            color: #C9C9C9;
            padding: 64px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-top {
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand .brand-icon {
            border-color: var(--primary);
        }
        .footer-brand .brand-icon::after {
            background: var(--primary);
        }
        .footer-brand .footer-brand-text {
            font-size: 1.1rem;
            color: #fff;
            font-weight: 700;
            letter-spacing: 0.02em;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 300px;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .footer-badges {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .footer-badges span {
            display: inline-block;
            padding: 4px 12px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.75);
        }
        .footer-links-title {
            color: #fff;
            font-size: 0.88rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 18px;
        }
        .footer-links-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links-list li {
            margin-bottom: 10px;
        }
        .footer-links-list a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer-links-list a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.42);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.42);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ====== STICKY BAR ====== */
        .mobile-sticky-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.05);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 10px 20px;
            transform: translateY(100%);
            transition: transform 0.3s ease;
        }
        .mobile-sticky-bar.visible {
            transform: translateY(0);
        }
        .mobile-sticky-bar .bar-logo {
            width: 36px;
            height: 36px;
            border: 2px solid var(--primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            transform: rotate(45deg);
            flex-shrink: 0;
        }
        .mobile-sticky-bar .bar-logo::after {
            content: '';
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 2px;
        }
        .mobile-sticky-bar .bar-text {
            flex: 1;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--dark);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            min-width: 0;
        }
        .mobile-sticky-bar .bar-btn {
            flex-shrink: 0;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-pill);
            height: 36px;
            padding: 0 18px;
            font-size: 0.82rem;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition);
            cursor: pointer;
        }
        .mobile-sticky-bar .bar-btn:hover {
            background: var(--primary-dark);
        }

        /* ====== RESPONSIVE ====== */
        @media (max-width: 991px) {
            .main-nav,
            .header-actions .search-box,
            .header-actions .header-login,
            .header-actions .btn-start {
                display: none;
            }
            .navbar-toggler-custom {
                display: flex;
            }
            .hero {
                padding: 110px 0 70px;
            }
            .hero-visual {
                justify-content: center;
                margin-top: 48px;
            }
            .hero-image-wrap {
                max-width: 360px;
            }
            .hero-badge-row {
                gap: 12px;
            }
            .social-section {
                padding-top: 48px;
            }
        }
        @media (max-width: 767px) {
            .section-padding {
                padding: 48px 0;
            }
            .hero-title {
                font-size: clamp(2rem, 6vw, 2.6rem);
                line-height: 1.2;
            }
            .hero-title .hero-title-line2 {
                font-size: 1.15rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
                margin-bottom: 24px;
            }
            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-light {
                min-width: 140px;
                height: 44px;
                font-size: 0.88rem;
            }
            .hero-badge-row {
                gap: 10px;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 3px 10px 3px 0;
            }
            .news-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 16px 20px;
            }
            .news-list-item:hover {
                padding-left: 20px;
            }
            .news-list-item .news-arrow {
                display: none;
            }
            .news-list-item .news-body h3 {
                font-size: 0.95rem;
                white-space: normal;
                line-height: 1.5;
            }
            .news-list-item .news-body p {
                white-space: normal;
                line-height: 1.5;
                display: -webkit-box;
                -webkit-line-clamp: 2;
                -webkit-box-orient: vertical;
                overflow: hidden;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .stat-num {
                font-size: 2rem;
            }
            .cta-banner {
                padding: 48px 0;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
                gap: 4px;
            }
            .mobile-sticky-bar {
                padding: 8px 16px;
                min-height: 56px;
            }
            .mobile-sticky-bar .bar-btn {
                max-width: 100px;
                padding: 0 12px;
                font-size: 0.75rem;
                height: 32px;
            }
        }
        @media (max-width: 575px) {
            .header-inner {
                height: 62px;
            }
            .hero {
                min-height: 92vh;
            }
            .container-custom {
                padding: 0 16px;
            }
            .hero-image-wrap {
                max-width: 300px;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                height: 44px;
                padding: 0 20px;
                font-size: 0.9rem;
            }
            .feature-card {
                padding: 24px 20px;
            }
            .scenario-step {
                gap: 14px;
                padding: 18px 0;
            }
            .scenario-step .step-num {
                font-size: 1.3rem;
                min-width: 44px;
            }
            .site-footer {
                padding-top: 48px;
            }
            .footer-bottom {
                padding: 16px 0 64px;
            }
        }
        @media (min-width: 1200px) {
            .search-box {
                width: 240px;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #C84028;
            --primary-dark: #A93521;
            --primary-light: rgba(200, 64, 40, 0.10);
            --dark: #18181A;
            --dark-soft: #202023;
            --bg-warm: #F7F5F2;
            --white: #FFFFFF;
            --text-main: #2D2D30;
            --text-muted: #6B6B60;
            --border: #E4E1DC;
            --success: #2D7A52;
            --warning: #B58B2E;
            --danger: #B00020;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 24px rgba(0, 0, 0, 0.08);
            --transition: 0.25s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            --font-num: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
            --font-serif: Georgia, "Times New Roman", serif;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text-main);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        input {
            font-family: inherit;
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
        }
        p {
            margin: 0;
        }
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding: 80px 0;
        }

        /* ===== 按钮 ===== */
        .btn-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--white);
            border-radius: var(--radius-pill);
            height: 48px;
            padding: 0 32px;
            font-size: 0.95rem;
            font-weight: 600;
            border: 1px solid var(--primary);
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }
        .btn-main:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: var(--white);
            transform: scale(0.98);
        }
        .btn-main:active {
            transform: scale(0.96);
        }
        .btn-main:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        .btn-main.btn-small {
            height: 40px;
            padding: 0 20px;
            font-size: 0.875rem;
        }
        .btn-main.btn-lg {
            height: 54px;
            padding: 0 44px;
            font-size: 1rem;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--text-main);
            border: 1px solid var(--dark);
            border-radius: var(--radius-pill);
            height: 48px;
            padding: 0 32px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
        }
        .btn-ghost:hover {
            background: rgba(24, 24, 26, 0.04);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-mark {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--white);
            border-radius: 10px;
            font-weight: 800;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            font-family: var(--font-num);
        }
        .brand-name {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .brand-name em {
            font-style: normal;
            font-weight: 400;
            color: var(--text-muted);
            margin-left: 2px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0 auto;
        }
        .nav-link-custom {
            position: relative;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 2px;
            transition: color var(--transition);
        }
        .nav-link-custom::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }
        .nav-link-custom:hover {
            color: var(--primary);
        }
        .nav-link-custom:hover::after,
        .nav-link-custom.active::after {
            transform: scaleX(1);
        }
        .nav-link-custom.active {
            color: var(--primary);
            font-weight: 600;
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            height: 40px;
            padding: 0 4px 0 14px;
            width: 200px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(200, 64, 40, 0.12);
        }
        .search-box input {
            flex: 1;
            border: none;
            outline: none;
            font-size: 0.875rem;
            color: var(--text-main);
            background: transparent;
            min-width: 0;
        }
        .search-box input::placeholder {
            color: #9C9C94;
        }
        .search-box button {
            width: 34px;
            height: 34px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: background var(--transition), color var(--transition);
        }
        .search-box button:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .link-login {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-main);
            padding: 6px 4px;
            white-space: nowrap;
        }
        .link-login:hover {
            color: var(--primary);
        }
        .menu-toggle {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--text-main);
            font-size: 1.1rem;
            border: 1px solid var(--border);
            background: var(--white);
            transition: background var(--transition), border-color var(--transition);
        }
        .menu-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 20px 24px 28px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin-bottom: 20px;
        }
        .mobile-nav-link {
            padding: 12px 4px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-main);
            border-bottom: 1px solid var(--border);
        }
        .mobile-nav-link:hover,
        .mobile-nav-link.active {
            color: var(--primary);
        }
        .mobile-tools {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .mobile-tools .search-box {
            width: 100%;
            height: 44px;
        }
        .mobile-tools .btn-main {
            width: 100%;
        }
        .mobile-tools .link-login {
            text-align: center;
            padding: 8px;
        }

        /* ===== 分类 Hero ===== */
        .category-hero {
            position: relative;
            min-height: 40vh;
            display: flex;
            align-items: center;
            padding: 140px 0 72px;
            background-color: var(--dark);
            overflow: hidden;
            isolation: isolate;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: -2;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(24, 24, 26, 0.92) 0%, rgba(24, 24, 26, 0.72) 50%, rgba(24, 24, 26, 0.45) 100%);
            z-index: -1;
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 1;
            max-width: 700px;
        }
        .breadcrumb-inline {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
        }
        .breadcrumb-inline a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
        }
        .breadcrumb-inline a:hover {
            color: var(--white);
        }
        .breadcrumb-sep {
            color: rgba(255, 255, 255, 0.4);
        }
        .breadcrumb-inline .current {
            color: var(--white);
            font-weight: 500;
        }
        .category-h1 {
            font-size: clamp(2.4rem, 5vw, 4.2rem);
            font-weight: 800;
            color: var(--white);
            letter-spacing: 0.01em;
            margin-bottom: 16px;
            line-height: 1.15;
        }
        .category-lead {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 520px;
            line-height: 1.7;
        }

        /* ===== 通用标题 ===== */
        .section-header-block {
            margin-bottom: 44px;
            position: relative;
        }
        .section-header-block h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            color: var(--text-main);
            padding-left: 20px;
            position: relative;
            line-height: 1.3;
        }
        .section-header-block h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0.14em;
            width: 4px;
            height: 0.9em;
            background: var(--primary);
            border-radius: 4px;
        }
        .section-header-block p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 12px;
            padding-left: 20px;
        }

        /* ===== 统计块 ===== */
        .stats-section {
            border-bottom: 1px solid var(--border);
            background: var(--white);
        }
        .stat-card {
            text-align: center;
            padding: 36px 20px;
            border-radius: var(--radius-md);
            background: var(--white);
            border: 1px solid var(--border);
            transition: box-shadow var(--transition), transform var(--transition);
            height: 100%;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .stat-number {
            font-family: var(--font-serif);
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            font-style: italic;
        }
        .stat-number span {
            font-size: 1.6rem;
            color: var(--warning);
            font-style: normal;
        }
        .stat-label {
            margin-top: 12px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
        }
        .stat-divider {
            width: 32px;
            height: 2px;
            background: var(--primary);
            margin: 16px auto 0;
            border-radius: 2px;
        }

        /* ===== 资讯列表区 ===== */
        .news-list-section {
            background: var(--bg-warm);
        }
        .news-grid-wrap {
            display: grid;
            grid-template-columns: 340px 1fr;
            gap: 48px;
            align-items: start;
        }
        .news-feature-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 100px;
        }
        .news-feature-img img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            display: block;
        }
        .news-feature-caption {
            padding: 18px 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
            background: var(--white);
            border-top: 1px solid var(--border);
        }
        .news-divider-list {
            border-top: 1px solid var(--border);
        }
        .news-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 26px 4px;
            border-bottom: 1px solid var(--border);
            transition: padding-left var(--transition);
        }
        .news-row:hover {
            padding-left: 12px;
            background: rgba(255, 255, 255, 0.5);
        }
        .news-main {
            flex: 1;
            min-width: 0;
        }
        .news-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 6px;
            padding: 3px 10px;
            margin-bottom: 10px;
        }
        .news-title {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 8px;
            transition: color var(--transition);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-row:hover .news-title {
            color: var(--primary);
        }
        .news-summary {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-shrink: 0;
        }
        .news-time {
            font-size: 0.85rem;
            font-family: var(--font-num);
            color: var(--text-muted);
            white-space: nowrap;
        }
        .news-arrow {
            font-size: 1.3rem;
            color: var(--primary);
            opacity: 0;
            transform: translateX(-4px);
            transition: opacity var(--transition), transform var(--transition);
        }
        .news-row:hover .news-arrow {
            opacity: 1;
            transform: translateX(0);
        }

        /* ===== 体育项目矩阵 ===== */
        .sports-grid-section {
            background: var(--white);
            border-top: 1px solid var(--border);
        }
        .sport-card {
            background: var(--bg-warm);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            height: 100%;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            position: relative;
            overflow: hidden;
        }
        .sport-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(200, 64, 40, 0.4);
        }
        .sport-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: var(--primary);
            transition: height var(--transition);
        }
        .sport-card:hover::before {
            height: 100%;
        }
        .sport-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 1.5rem;
            margin-bottom: 20px;
            transition: background var(--transition), color var(--transition);
        }
        .sport-card:hover .sport-icon {
            background: var(--primary);
            color: var(--white);
        }
        .sport-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .sport-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .card-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            opacity: 0.85;
            transition: opacity var(--transition);
        }
        .sport-card:hover .card-link {
            opacity: 1;
        }
        .sport-card.middle-highlight {
            background: var(--dark);
            border-color: var(--dark);
        }
        .sport-card.middle-highlight h3 {
            color: var(--white);
        }
        .sport-card.middle-highlight p {
            color: rgba(255, 255, 255, 0.7);
        }
        .sport-card.middle-highlight .sport-icon {
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
        }
        .sport-card.middle-highlight:hover .sport-icon {
            background: var(--primary);
            color: var(--white);
        }
        .sport-card.middle-highlight .card-link {
            color: var(--white);
        }

        /* ===== 时间线 ===== */
        .timeline-section {
            background: var(--bg-warm);
            border-top: 1px solid var(--border);
        }
        .timeline-wrap {
            display: grid;
            grid-template-columns: 1fr 400px;
            gap: 56px;
            align-items: center;
        }
        .timeline-steps {
            position: relative;
        }
        .timeline-steps::before {
            content: "";
            position: absolute;
            left: 52px;
            top: 20px;
            bottom: 20px;
            width: 1px;
            background: var(--border);
        }
        .timeline-item {
            position: relative;
            padding: 0 0 40px 96px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .step-num {
            position: absolute;
            left: 0;
            top: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--white);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-serif);
            font-style: italic;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .timeline-item h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .timeline-item p {
            font-size: 0.925rem;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 440px;
        }
        .timeline-step-line {
            display: inline-block;
            width: 36px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            margin: 14px 0 10px;
        }
        .timeline-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .timeline-img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            display: block;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--white);
            border-top: 1px solid var(--border);
        }
        .faq-wrap {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 4px;
            transition: padding-left var(--transition);
        }
        .faq-item.open {
            padding-left: 12px;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            padding: 8px 0;
            transition: color var(--transition);
            background: transparent;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-item.open .faq-question {
            color: var(--primary);
        }
        .faq-icon {
            font-size: 1.1rem;
            color: var(--primary);
            flex-shrink: 0;
            width: 24px;
            text-align: center;
            transition: transform var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            font-size: 0.925rem;
            color: var(--text-muted);
            line-height: 1.7;
            padding: 0 28px 0 0;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 10px;
            padding-bottom: 8px;
        }

        /* ===== CTA横幅 ===== */
        .cta-banner {
            background: var(--dark);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(200, 64, 40, 0.6), transparent);
        }
        .cta-banner h2 {
            font-size: clamp(1.6rem, 3.4vw, 2.4rem);
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
        }
        .cta-banner p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 32px;
        }
        .cta-banner .btn-main {
            background: var(--primary);
            border-color: var(--primary);
        }
        .cta-banner .btn-main:hover {
            background: var(--primary-dark);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark);
            color: #C9C9C9;
            padding: 64px 0 0;
            font-size: 0.9rem;
        }
        .footer-top {
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .brand-icon {
            display: inline-block;
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 8px;
            flex-shrink: 0;
        }
        .footer-brand-text {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--white);
        }
        .footer-desc {
            font-size: 0.9rem;
            color: #C9C9C9;
            line-height: 1.65;
            max-width: 320px;
            margin-bottom: 16px;
        }
        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-badges span {
            display: inline-block;
            padding: 4px 14px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-pill);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.75);
        }
        .footer-links-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 18px;
        }
        .footer-links-list li {
            margin-bottom: 10px;
        }
        .footer-links-list a {
            color: #C9C9C9;
            font-size: 0.9rem;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-links-list a:hover {
            color: var(--white);
            padding-left: 6px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            font-family: var(--font-num);
        }
        .footer-bottom a:hover {
            color: var(--white);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199px) {
            .search-box {
                width: 170px;
            }
            .header-tools {
                gap: 8px;
            }
            .main-nav {
                gap: 22px;
            }
        }
        @media (max-width: 991px) {
            .main-nav,
            .header-tools {
                display: none !important;
            }
            .timeline-wrap {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .timeline-img img {
                height: 260px;
            }
            .news-grid-wrap {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .news-feature-img {
                position: static;
            }
        }
        @media (max-width: 767px) {
            .section-pad {
                padding: 56px 0;
            }
            .category-hero {
                min-height: 320px;
                padding: 110px 0 48px;
            }
            .category-h1 {
                font-size: clamp(1.9rem, 6vw, 2.6rem);
            }
            .news-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 22px 0;
            }
            .news-meta {
                width: 100%;
                justify-content: space-between;
            }
            .news-arrow {
                opacity: 1;
                transform: none;
            }
            .stat-number {
                font-size: 2.4rem;
            }
            .timeline-steps::before {
                left: 22px;
            }
            .timeline-item {
                padding-left: 64px;
            }
            .step-num {
                width: 36px;
                height: 36px;
                font-size: 0.9rem;
            }
            .cta-banner {
                padding: 56px 0;
            }
        }
        @media (max-width: 575px) {
            .container-custom {
                padding: 0 18px;
            }
            .brand-name {
                font-size: 0.95rem;
            }
            .brand-mark {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }
            .sport-card {
                padding: 24px 20px;
            }
            .sport-icon {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .faq-question {
                font-size: 0.95rem;
            }
        }

        /* ===== 焦点可见性 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

/* roulang page: article */
:root {
            --brand: #C84028;
            --brand-dark: #A93521;
            --dark: #18181A;
            --bg: #F7F5F2;
            --card-bg: #FFFFFF;
            --text: #242226;
            --muted: #6B6B60;
            --line: #E4E1DC;
            --success: #2D7A52;
            --warn: #B58B2E;
            --radius-btn: 999px;
            --radius-card: 12px;
            --radius-input: 8px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 24px rgba(0, 0, 0, 0.08);
            --transition: 0.25s ease;
            --container-max: 1200px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            font-size: 1rem;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, 0.82);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--line);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
        }

        .header-inner {
            height: var(--header-height);
            position: relative;
        }

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

        .brand-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            border: 2px solid var(--brand);
            border-radius: 8px;
            position: relative;
            flex-shrink: 0;
        }

        .brand-icon::before {
            content: '';
            position: absolute;
            inset: 6px;
            background: var(--brand);
            transform: rotate(45deg);
            border-radius: 2px;
        }

        .brand-text {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .brand-sub {
            font-weight: 400;
            color: var(--text);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin-left: 48px;
        }

        .nav-link-custom {
            position: relative;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            padding: 8px 2px;
            border: 0;
            background: transparent;
        }

        .nav-link-custom::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--brand);
            transition: width var(--transition);
        }

        .nav-link-custom:hover::after,
        .nav-link-custom.active::after {
            width: 100%;
        }

        .nav-link-custom:hover,
        .nav-link-custom.active {
            color: var(--brand);
        }

        .header-actions {
            gap: 14px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-input);
            height: 40px;
            padding: 0 6px 0 14px;
            transition: var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(200, 64, 40, 0.14);
        }

        .search-box input {
            border: 0;
            outline: 0;
            background: transparent;
            width: 150px;
            font-size: 0.875rem;
            color: var(--text);
        }

        .search-box input::placeholder {
            color: #A9A59F;
        }

        .search-box button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border: 0;
            background: transparent;
            color: var(--muted);
            border-radius: 6px;
            transition: var(--transition);
        }

        .search-box button:hover {
            color: var(--brand);
            background: rgba(200, 64, 40, 0.08);
        }

        .btn-login {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
            padding: 8px 4px;
        }

        .btn-login:hover {
            color: var(--brand);
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 32px;
            background: var(--brand);
            color: #fff;
            border: 0;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary-custom:hover {
            background: var(--brand-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(200, 64, 40, 0.25);
        }

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

        .btn-primary-custom:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 3px;
        }

        .btn-starter-sm {
            height: 40px;
            padding: 0 20px;
            font-size: 0.875rem;
        }

        .navbar-toggler-custom {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--line);
            background: #fff;
            border-radius: 8px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            padding: 0;
            transition: var(--transition);
        }

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

        .navbar-toggler-custom span {
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }

        .navbar-toggler-custom.is-open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .navbar-toggler-custom.is-open span:nth-child(2) {
            opacity: 0;
        }

        .navbar-toggler-custom.is-open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-actions {
            display: none;
        }

        /* ===== Main content areas ===== */
        .article-page {
            padding-top: calc(var(--header-height) + 48px);
            padding-bottom: 72px;
        }

        .article-container {
            max-width: 820px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 0.875rem;
            color: var(--muted);
            margin-bottom: 32px;
        }

        .breadcrumb-custom a {
            color: var(--muted);
            text-decoration: none;
            transition: var(--transition);
        }

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

        .breadcrumb-custom .divider {
            color: #C2BEB8;
        }

        .breadcrumb-custom .current {
            color: var(--text);
            font-weight: 600;
            max-width: 380px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-header {
            max-width: 780px;
            margin: 0 auto 44px;
        }

        .article-title {
            font-size: clamp(1.8rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: 0.01em;
            color: var(--dark);
            margin: 0 0 24px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.875rem;
            color: var(--muted);
        }

        .article-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            background: rgba(200, 64, 40, 0.12);
            color: var(--brand);
            border-radius: 8px;
            font-weight: 600;
        }

        .article-views {
            color: var(--muted);
        }

        .article-body {
            max-width: 780px;
            margin: 0 auto;
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text);
        }

        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--dark);
            margin: 48px 0 18px;
            padding-left: 16px;
            border-left: 4px solid var(--brand);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--dark);
            margin: 32px 0 14px;
        }

        .article-body p {
            margin-bottom: 1.5em;
        }

        .article-body blockquote {
            margin: 28px 0;
            padding: 18px 24px;
            border-left: 3px solid var(--brand);
            background: #fff;
            border-radius: 0 8px 8px 0;
            color: var(--muted);
            font-style: italic;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 1.5em;
            padding-left: 1.3em;
        }

        .article-body li {
            margin-bottom: 0.5em;
        }

        .article-body img {
            border-radius: var(--radius-card);
            margin: 28px 0;
            box-shadow: var(--shadow-card);
        }

        .article-body a {
            color: var(--brand);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .article-body a:hover {
            color: var(--brand-dark);
        }

        .article-footer {
            max-width: 780px;
            margin: 48px auto 0;
            padding: 24px 0 0;
            border-top: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

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

        .tag-item {
            display: inline-block;
            padding: 6px 18px;
            border: 1px solid var(--line);
            border-radius: 999px;
            font-size: 0.8125rem;
            color: var(--text);
            background: #fff;
            transition: var(--transition);
        }

        .tag-item:hover {
            border-color: var(--brand);
            color: var(--brand);
            background: rgba(200, 64, 40, 0.05);
        }

        .share-block {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .share-label {
            font-size: 0.8125rem;
            color: var(--muted);
        }

        .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border: 1px solid var(--line);
            border-radius: 50%;
            background: #fff;
            color: var(--muted);
            transition: var(--transition);
        }

        .share-btn:hover {
            background: var(--brand);
            border-color: var(--brand);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(200, 64, 40, 0.22);
        }

        .article-notfound {
            max-width: 780px;
            margin: 0 auto;
            padding: 80px 24px;
            text-align: center;
            background: #fff;
            border: 1px dashed var(--line);
            border-radius: var(--radius-card);
        }

        .article-notfound h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .article-notfound p {
            color: var(--muted);
            margin-bottom: 24px;
        }

        /* ===== Related section ===== */
        .related-section {
            background: #fff;
            border-top: 1px solid var(--line);
            padding: 80px 0;
        }

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

        .related-card:hover {
            border-color: rgba(200, 64, 40, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

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

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

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

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

        .related-card-cat {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--brand);
            background: rgba(200, 64, 40, 0.1);
            border-radius: 6px;
            padding: 3px 10px;
            margin-bottom: 10px;
        }

        .related-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.5;
            margin: 0 0 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-desc {
            font-size: 0.875rem;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-meta {
            font-size: 0.8125rem;
            color: #A9A59F;
        }

        .back-to-list {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--brand);
            border-bottom: 2px solid rgba(200, 64, 40, 0.3);
            padding-bottom: 4px;
            transition: var(--transition);
        }

        .back-to-list:hover {
            color: var(--brand-dark);
            border-bottom-color: var(--brand-dark);
        }

        /* ===== CTA banner ===== */
        .cta-banner {
            background: var(--dark);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 260px;
            height: 260px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            right: 24px;
            bottom: -90px;
            width: 180px;
            height: 180px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transform: rotate(45deg);
        }

        .cta-banner h2 {
            color: #fff;
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .cta-banner p {
            color: #C9C9C9;
            max-width: 560px;
            margin: 0 auto 32px;
            font-size: 1rem;
            position: relative;
            z-index: 1;
        }

        .cta-banner .btn-primary-custom {
            position: relative;
            z-index: 1;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: #C9C9C9;
            padding: 64px 0 0;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            border-color: #fff;
        }

        .footer-brand .brand-icon::before {
            background: #fff;
        }

        .footer-brand-text {
            font-size: 1.15rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.01em;
        }

        .footer-desc {
            color: #9E9E93;
            margin-top: 16px;
            max-width: 340px;
            font-size: 0.9125rem;
        }

        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .footer-badges span {
            display: inline-block;
            padding: 4px 14px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 4px;
            font-size: 0.75rem;
            color: #C9C9C9;
        }

        .footer-links-title {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 20px;
            line-height: 1.4;
        }

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

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

        .footer-links-list a {
            color: #C9C9C9;
            font-size: 0.9rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 56px;
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.8125rem;
            color: #9E9E93;
        }

        .footer-bottom a {
            color: #C9C9C9;
            transition: var(--transition);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .main-nav {
                gap: 22px;
                margin-left: 28px;
            }

            .search-box input {
                width: 130px;
            }
        }

        @media (max-width: 991.98px) {
            .navbar-toggler-custom {
                display: inline-flex;
            }

            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                z-index: 1029;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                margin-left: 0;
                padding: 24px;
                border-bottom: 1px solid var(--line);
                box-shadow: 0 24px 40px rgba(0, 0, 0, 0.08);
                opacity: 0;
                visibility: hidden;
                transform: translateY(-12px);
                pointer-events: none;
                transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
            }

            .main-nav.open {
                opacity: 1;
                visibility: visible;
                transform: translateY(0);
                pointer-events: auto;
            }

            .main-nav .nav-link-custom {
                padding: 12px 8px;
                font-size: 1rem;
                border-bottom: 1px solid #F0EEEB;
                border-radius: 0;
            }

            .mobile-actions {
                display: flex;
                flex-direction: column;
                gap: 14px;
                margin-top: 16px;
            }

            .mobile-actions .search-box input {
                width: 100%;
                flex: 1;
            }

            .mobile-actions .btn-primary-custom,
            .mobile-actions .btn-login {
                width: 100%;
                text-align: center;
            }

            .header-actions {
                display: none;
            }
        }

        @media (max-width: 767.98px) {
            .article-page {
                padding-top: calc(var(--header-height) + 24px);
                padding-bottom: 48px;
            }

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

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

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

            .breadcrumb-custom .current {
                white-space: normal;
                max-width: 100%;
            }

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

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

            .footer-links-title {
                margin-bottom: 14px;
            }
        }

        @media (max-width: 575.98px) {
            .container-custom {
                padding: 0 16px;
            }

            .article-container {
                padding: 0 16px;
            }

            .header-inner {
                gap: 8px;
            }

            .brand-text {
                font-size: 1rem;
            }

            .brand-sub {
                display: none;
            }

            .search-box {
                display: none;
            }

            .article-title {
                font-size: 1.6rem;
                line-height: 1.35;
            }

            .article-meta {
                gap: 10px;
            }

            .related-card-body {
                padding: 16px;
            }

            .back-to-list {
                margin-top: 8px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #C84028;
            --primary-dark: #A93521;
            --dark: #18181A;
            --bg: #F7F5F2;
            --white: #FFFFFF;
            --muted: #6B6B60;
            --border: #E4E1DC;
            --success: #2D7A52;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.08);
            --transition: 0.25s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
            --font-digit: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.75;
            color: #222;
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        input {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

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

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 32px;
            border-radius: var(--radius-pill);
            font-size: 1rem;
            font-weight: 600;
            line-height: 1;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff !important;
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 18px rgba(200, 64, 40, 0.28);
            transform: translateY(-1px);
        }

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

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

        .btn-outline-dark:hover {
            background: rgba(24, 24, 26, 0.04);
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-lg {
            height: 54px;
            padding: 0 40px;
            font-size: 1.05rem;
        }

        .btn-sm {
            height: 40px;
            padding: 0 22px;
            font-size: 0.9rem;
        }

        .btn-block {
            width: 100%;
        }

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

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition), background var(--transition);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

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

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

        .brand-icon {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--primary);
            position: relative;
            flex-shrink: 0;
        }

        .brand-icon::before {
            content: "";
            position: absolute;
            inset: 6px;
            border: 2px solid rgba(255, 255, 255, 0.8);
            border-radius: 3px;
            transform: rotate(45deg);
        }

        .brand-name {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .brand-name .brand-dot {
            color: var(--primary);
            margin: 0 2px;
        }

        .brand-name .brand-sub {
            font-weight: 500;
            color: #555;
        }

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

        .nav-link-custom {
            position: relative;
            padding: 8px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #444;
            border-radius: var(--radius-sm);
            transition: color var(--transition), background var(--transition);
        }

        .nav-link-custom::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }

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

        .nav-link-custom:hover::after {
            transform: scaleX(1);
        }

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

        .nav-link-custom.active::after {
            transform: scaleX(1);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search input {
            width: 180px;
            height: 40px;
            padding: 0 42px 0 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.875rem;
            background: var(--bg);
            transition: all var(--transition);
        }

        .nav-search input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(200, 64, 40, 0.12);
            background: var(--white);
        }

        .nav-search button {
            position: absolute;
            right: 4px;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--muted);
            border-radius: 6px;
            transition: color var(--transition);
        }

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

        .nav-login {
            font-size: 0.9rem;
            font-weight: 500;
            color: #444;
            padding: 6px 8px;
        }

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

        .btn-nav-cta {
            height: 40px;
            padding: 0 22px;
            font-size: 0.9rem;
        }

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

        .nav-toggler:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        .toggler-bar {
            width: 22px;
            height: 2px;
            background: var(--dark);
            border-radius: 2px;
            transition: transform var(--transition), opacity var(--transition);
        }

        .nav-toggler.active .toggler-bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggler.active .toggler-bar:nth-child(2) {
            opacity: 0;
        }

        .nav-toggler.active .toggler-bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Mobile Menu */
        .mobile-menu {
            display: none;
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 16px 24px 24px;
        }

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

        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav-link {
            padding: 12px 8px;
            font-size: 1rem;
            font-weight: 500;
            color: #333;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            border-bottom: 1px solid #f1efec;
        }

        .mobile-nav-link:hover {
            color: var(--primary);
            background: rgba(200, 64, 40, 0.04);
        }

        .mobile-nav-link.active {
            color: var(--primary);
            background: rgba(200, 64, 40, 0.06);
            font-weight: 600;
        }

        .mobile-actions {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 16px;
        }

        @media (max-width: 991px) {
            .main-nav {
                display: none;
            }

            .nav-toggler {
                display: flex;
            }

            .nav-search {
                display: none;
            }

            .nav-login {
                display: none;
            }

            .btn-nav-cta {
                display: none;
            }

            .mobile-menu {
                display: none;
            }

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

        /* ===== 页面 Hero ===== */
        .page-hero {
            position: relative;
            min-height: 40vh;
            display: flex;
            align-items: flex-end;
            padding: 140px 0 64px;
            overflow: hidden;
            background-color: var(--dark);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.35;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(24, 24, 26, 0.55) 0%, rgba(24, 24, 26, 0.75) 100%);
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            color: #fff;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
        }

        .breadcrumb-custom a:hover {
            color: #fff;
        }

        .breadcrumb-sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .breadcrumb-current {
            color: #fff;
            font-weight: 600;
        }

        .page-hero-title {
            font-size: clamp(2.2rem, 4.5vw, 3.4rem);
            font-weight: 800;
            letter-spacing: 0.01em;
            margin-bottom: 12px;
            color: #fff;
            line-height: 1.2;
        }

        .page-hero-sub {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            line-height: 1.7;
        }

        .hero-meta-line {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 24px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
        }

        .hero-meta-line .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--primary);
        }

        /* ===== 通用板块标题 ===== */
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: rgba(200, 64, 40, 0.08);
            padding: 6px 14px;
            border-radius: 4px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--dark);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-subtext {
            font-size: 1rem;
            color: var(--muted);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

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

        .section-title-left {
            position: relative;
            padding-left: 20px;
        }

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

        @media (max-width: 767px) {
            .section-head {
                margin-bottom: 32px;
            }
        }

        /* ===== 平台概览 ===== */
        .overview-section {
            background: var(--bg);
        }

        .section-text {
            font-size: 1rem;
            color: #444;
            line-height: 1.85;
            margin-top: 16px;
        }

        .feature-points {
            margin-top: 24px;
        }

        .feature-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 0.95rem;
            color: #333;
        }

        .feature-points li i {
            color: var(--primary);
            font-size: 0.85rem;
            margin-top: 5px;
            flex-shrink: 0;
        }

        .overview-image-wrap {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
        }

        .overview-img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        .overview-badge {
            position: absolute;
            left: 20px;
            bottom: 20px;
            background: rgba(255, 255, 255, 0.92);
            border-radius: 10px;
            padding: 12px 20px;
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .badge-num {
            font-family: var(--font-digit);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
        }

        .badge-label {
            font-size: 0.8rem;
            color: var(--muted);
            line-height: 1.3;
        }

        /* ===== 步骤流程 ===== */
        .steps-section {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .step-card {
            position: relative;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 28px 28px;
            height: 100%;
            transition: all var(--transition);
        }

        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(200, 64, 40, 0.35);
        }

        .step-card-dark {
            background: var(--dark);
            border-color: var(--dark);
            color: #fff;
        }

        .step-card-dark .step-title {
            color: #fff;
        }

        .step-card-dark .step-text {
            color: rgba(255, 255, 255, 0.72);
        }

        .step-card-dark .step-number {
            color: rgba(255, 255, 255, 0.35);
        }

        .step-card-dark:hover {
            background: #202022;
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.18);
        }

        .step-number {
            font-family: var(--font-digit);
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1;
            color: rgba(200, 64, 40, 0.35);
            display: block;
            margin-bottom: 18px;
        }

        .step-title {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .step-text {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ===== 平台特色 ===== */
        .features-section {
            background: var(--bg);
        }

        .feature-card {
            position: relative;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 26px 28px;
            height: 100%;
            transition: all var(--transition);
        }

        .feature-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 24px;
            bottom: 24px;
            width: 3px;
            border-radius: 3px;
            background: transparent;
            transition: background var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(200, 64, 40, 0.25);
        }

        .feature-card:hover::before {
            background: var(--primary);
        }

        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(200, 64, 40, 0.08);
            color: var(--primary);
            font-size: 1.2rem;
            margin-bottom: 20px;
            transition: all var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 信息频道分隔线列表 ===== */
        .channels-section {
            background: var(--white);
        }

        .channels-list {
            max-width: 880px;
            margin: 0 auto;
        }

        .channel-row {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 28px 8px;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }

        .channel-row:first-child {
            border-top: 1px solid var(--border);
        }

        .channel-row:hover {
            padding-left: 20px;
            background: rgba(200, 64, 40, 0.02);
        }

        .channel-index {
            font-family: var(--font-digit);
            font-size: 1.3rem;
            font-weight: 600;
            color: rgba(200, 64, 40, 0.5);
            width: 44px;
            flex-shrink: 0;
        }

        .channel-info {
            flex: 1;
        }

        .channel-info h3 {
            font-size: 1.08rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 4px;
            transition: color var(--transition);
        }

        .channel-info p {
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        .channel-arrow {
            color: var(--border);
            font-size: 1rem;
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .channel-row:hover .channel-arrow {
            color: var(--primary);
            transform: translateX(4px);
        }

        @media (max-width: 575px) {
            .channel-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 24px 4px;
            }

            .channel-index {
                display: none;
            }

            .channel-arrow {
                align-self: flex-end;
            }
        }

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

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 24px 4px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--dark);
            text-align: left;
            transition: color var(--transition);
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 500;
            color: var(--primary);
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer p {
            padding: 0 4px 22px;
            font-size: 0.95rem;
            color: var(--muted);
            line-height: 1.75;
        }

        /* ===== CTA 横幅 ===== */
        .cta-section {
            background: var(--white);
            padding-top: 0;
        }

        .cta-banner {
            position: relative;
            background: var(--dark);
            border-radius: 16px;
            padding: 72px 48px;
            text-align: center;
            overflow: hidden;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }

        .cta-banner::after {
            content: "";
            position: absolute;
            left: -40px;
            bottom: -40px;
            width: 160px;
            height: 160px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 50%;
        }

        .cta-content {
            position: relative;
            z-index: 2;
        }

        .cta-content h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            margin-bottom: 28px;
        }

        .cta-content .btn-primary {
            height: 52px;
            padding: 0 42px;
        }

        @media (max-width: 767px) {
            .cta-banner {
                padding: 48px 24px;
                border-radius: 12px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: #C9C9C9;
            padding: 64px 0 0;
        }

        .footer-top {
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            width: 26px;
            height: 26px;
        }

        .footer-brand-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
        }

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #9a9a9a;
            margin-bottom: 20px;
            max-width: 320px;
        }

        .footer-badges {
            display: flex;
            gap: 8px;
        }

        .footer-badges span {
            font-size: 0.75rem;
            color: #c9c9c9;
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 5px 14px;
            border-radius: 999px;
            transition: border-color var(--transition), color var(--transition);
        }

        .footer-badges span:hover {
            border-color: var(--primary);
            color: #fff;
        }

        .footer-links-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.04em;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-links-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .footer-links-list {
            padding: 0;
        }

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

        .footer-links-list a {
            font-size: 0.9rem;
            color: #9a9a9a;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links-list a::before {
            content: "";
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--primary);
            opacity: 0;
            transition: opacity var(--transition);
        }

        .footer-links-list a:hover {
            color: #fff;
            padding-left: 8px;
        }

        .footer-links-list a:hover::before {
            opacity: 1;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.85rem;
            color: #8a8a8a;
        }

        .footer-bottom a {
            color: #8a8a8a;
            transition: color var(--transition);
        }

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

        @media (max-width: 767px) {
            .site-footer {
                padding-top: 40px;
            }

            .footer-top {
                padding-bottom: 24px;
            }

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

        /* ===== Focus 可访问性 ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== 移动端适配 ===== */
        @media (max-width: 767px) {
            .page-hero {
                min-height: 38vh;
                padding: 120px 0 48px;
            }

            .page-hero-sub {
                font-size: 0.95rem;
            }

            .overview-img {
                height: 260px;
            }

            .overview-badge {
                left: 14px;
                bottom: 14px;
                padding: 10px 16px;
            }

            .step-card {
                padding: 28px 20px 22px;
            }

            .feature-card {
                padding: 26px 20px 22px;
            }
        }

        @media (max-width: 575px) {
            .container-custom {
                padding: 0 16px;
            }

            .header-inner {
                height: 64px;
            }

            .brand-name {
                font-size: 1.05rem;
            }

            .page-hero-title {
                font-size: 1.9rem;
            }

            .section-title {
                font-size: 1.45rem;
            }

            .faq-question {
                font-size: 0.95rem;
                padding: 20px 2px;
            }
        }