/* roulang page: index */
:root {
            --bg-primary: #15121E;
            --surface: #1E1A28;
            --surface-light: #282233;
            --brand: #C8913A;
            --accent: #E8542A;
            --accent-hover: #D94A20;
            --highlight: #D9B36C;
            --success: #3D8B6E;
            --text-primary: #F2EDE4;
            --text-secondary: #A8A0B8;
            --border: rgba(200, 145, 58, 0.25);
            --border-strong: rgba(200, 145, 58, 0.45);
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.35), 0 8px 24px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 6px 16px rgba(0, 0, 0, 0.45), 0 16px 40px rgba(0, 0, 0, 0.3);
            --radius-card: 12px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 999px;
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
            --section-padding-desktop: 5rem;
            --section-padding-mobile: 3rem;
            --transition-fast: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.85;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        .section-padding {
            padding-top: var(--section-padding-desktop);
            padding-bottom: var(--section-padding-desktop);
        }

        .section-surface {
            background-color: var(--surface);
        }

        .section-bg {
            background-color: var(--bg-primary);
        }

        .section-alt {
            background-color: var(--surface-light);
        }

        .section-title {
            font-size: clamp(1.35rem, 2.2vw, 1.8rem);
            font-weight: 650;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            margin-bottom: 0.75rem;
            position: relative;
            padding-left: 1rem;
            line-height: 1.4;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.1em;
            width: 4px;
            height: 1em;
            background-color: var(--brand);
            border-radius: 2px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 2.5rem;
            max-width: 760px;
        }

        .btn-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background-color: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 0.75rem 1.75rem;
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            text-decoration: none;
            cursor: pointer;
        }

        .btn-brand:hover {
            background-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 84, 42, 0.35);
        }

        .btn-brand:active {
            transform: scale(0.97);
        }

        .btn-outline-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--brand);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-btn);
            padding: 0.75rem 1.75rem;
            font-size: 1rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            text-decoration: none;
            cursor: pointer;
        }

        .btn-outline-brand:hover {
            background-color: rgba(200, 145, 58, 0.1);
            color: var(--highlight);
            border-color: var(--highlight);
            transform: translateY(-2px);
        }

        .btn-outline-brand:active {
            transform: scale(0.97);
        }

        .badge-gold {
            background-color: var(--brand);
            color: #15121E;
            border-radius: var(--radius-badge);
            padding: 0.35rem 1rem;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            display: inline-block;
        }

        .badge-coral {
            background-color: var(--accent);
            color: #fff;
            border-radius: var(--radius-badge);
            padding: 0.35rem 1rem;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            display: inline-block;
        }

        .badge-outline {
            background: transparent;
            color: var(--highlight);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-badge);
            padding: 0.3rem 0.9rem;
            font-size: 0.75rem;
            font-weight: 500;
            display: inline-block;
        }

        .card-base {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
        }

        .card-base:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-strong);
        }

        .card-glow {
            border: 1px solid rgba(200, 145, 58, 0.15);
            box-shadow: inset 0 0 0 1px rgba(200, 145, 58, 0.08), var(--shadow-card);
        }

        .card-glow:hover {
            box-shadow: inset 0 0 0 1px rgba(200, 145, 58, 0.2), var(--shadow-card-hover);
        }

        .carousel-track {
            display: flex;
            gap: 1.25rem;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 1rem;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
        }

        .carousel-track::-webkit-scrollbar {
            height: 5px;
        }

        .carousel-track::-webkit-scrollbar-track {
            background: transparent;
        }

        .carousel-track::-webkit-scrollbar-thumb {
            background-color: var(--border-strong);
            border-radius: 999px;
        }

        .carousel-track .card-item {
            flex: 0 0 260px;
            scroll-snap-align: start;
        }

        .carousel-track .card-item-wide {
            flex: 0 0 340px;
            scroll-snap-align: start;
        }

        .form-control-custom {
            background-color: var(--bg-primary);
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            color: var(--text-primary);
            padding: 0.75rem 1rem;
            font-size: 0.95rem;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            width: 100%;
        }

        .form-control-custom:focus {
            border-color: var(--highlight);
            box-shadow: 0 0 0 3px rgba(217, 179, 108, 0.2);
            outline: none;
            color: var(--text-primary);
            background-color: var(--bg-primary);
        }

        .form-control-custom::placeholder {
            color: var(--text-secondary);
            opacity: 0.7;
        }

        .divider-gold {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--border-strong), transparent);
            margin: 2rem 0;
        }

        .accordion-custom .accordion-item {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 0.75rem;
            overflow: hidden;
        }

        .accordion-custom .accordion-button {
            background-color: var(--surface);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 1.25rem 1.5rem;
            border: none;
            box-shadow: none;
            transition: all var(--transition-fast);
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background-color: var(--surface-light);
            color: var(--highlight);
            box-shadow: none;
            border-bottom: 1px solid var(--border);
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 2px var(--border-strong);
            border: none;
        }

        .accordion-custom .accordion-body {
            background-color: var(--surface);
            color: var(--text-secondary);
            padding: 1.25rem 1.5rem;
            line-height: 1.85;
        }

        .accordion-custom .accordion-button::after {
            filter: invert(1) sepia(0.8) saturate(3) hue-rotate(20deg);
        }

        @media (max-width: 768px) {
            :root {
                --section-padding-desktop: 3rem;
                --section-padding-mobile: 2rem;
            }

            .section-padding {
                padding-top: var(--section-padding-mobile);
                padding-bottom: var(--section-padding-mobile);
            }
        }

        @media (max-width: 576px) {
            .carousel-track .card-item {
                flex: 0 0 220px;
            }

            .carousel-track .card-item-wide {
                flex: 0 0 280px;
            }
        }

/* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background-color: rgba(21, 18, 30, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: all var(--transition-fast);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            padding: 0.75rem 0;
            flex-wrap: nowrap;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            text-decoration: none;
            flex-shrink: 0;
            min-width: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.25rem;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            line-height: 1.3;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
        }

        .nav-link-card {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-link-card:hover {
            color: var(--text-primary);
            background-color: rgba(200, 145, 58, 0.08);
        }

        .nav-link-card.active {
            color: var(--brand);
            background-color: var(--surface);
            box-shadow: inset 0 -2px 0 var(--brand);
        }

        .nav-link-card.active::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background-color: var(--brand);
            border-radius: 3px 3px 0 0;
        }

        .search-toggle {
            background: none;
            border: none;
            color: var(--text-secondary);
            font-size: 1.1rem;
            cursor: pointer;
            padding: 0.5rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
        }

        .search-toggle:hover {
            color: var(--brand);
            background-color: rgba(200, 145, 58, 0.1);
        }

        .search-panel {
            position: absolute;
            top: 100%;
            right: 0;
            left: 0;
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: 0 0 var(--radius-card) var(--radius-card);
            padding: 1rem;
            display: none;
        }

        .search-panel.show {
            display: block;
        }

        .mobile-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: var(--bg-primary);
            z-index: 1040;
            padding: 6rem 1.5rem 2rem;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            overflow-y: auto;
        }

        .mobile-nav.show {
            transform: translateX(0);
        }

        .mobile-nav .nav-link-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.25rem;
            font-size: 1.05rem;
            border-bottom: 1px solid var(--border);
            border-radius: 0;
        }

        .mobile-nav .nav-link-card.active {
            border-left: 3px solid var(--brand);
            background-color: var(--surface);
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--border-strong);
            color: var(--text-primary);
            border-radius: 8px;
            padding: 0.5rem 0.75rem;
            font-size: 1.25rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .navbar-toggler-custom:hover {
            background-color: rgba(200, 145, 58, 0.1);
        }

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

            .navbar-toggler-custom {
                display: inline-flex;
            }

            .search-toggle {
                display: none;
            }

            .header-cta {
                display: none;
            }
        }

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

/* Hero */
        .hero-section {
            position: relative;
            padding-top: 8rem;
            padding-bottom: 5rem;
            background-color: var(--bg-primary);
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/2f281b89e32ddc7b.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 25% 50%, rgba(21, 18, 30, 0.4) 0%, rgba(21, 18, 30, 0.9) 70%, rgba(21, 18, 30, 0.98) 100%);
            z-index: 1;
        }

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

        .hero-h1 {
            font-size: clamp(1.75rem, 3.5vw, 2.75rem);
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            line-height: 1.35;
            margin-bottom: 1.25rem;
        }

        .hero-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 680px;
            margin-bottom: 2rem;
        }

        .hero-cta-row {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

        .hero-trust-list {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .hero-trust-list li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
        }

        .hero-trust-list li i {
            color: var(--success);
            font-size: 0.9rem;
        }

        @media (max-width: 768px) {
            .hero-section {
                padding-top: 6rem;
                padding-bottom: 3.5rem;
                min-height: auto;
            }

            .hero-cta-row {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-trust-list {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }
        }

/* 指标看板 */
        .metric-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1.75rem 1.5rem;
            text-align: left;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
        }

        .metric-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-strong);
        }

        .metric-number {
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--brand);
            letter-spacing: 0.03em;
            line-height: 1.2;
            margin-bottom: 0.5rem;
        }

        .metric-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 专区卡片 */
        .zone-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            height: 100%;
        }

        .zone-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-strong);
        }

        .zone-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background-color: var(--surface-light);
        }

        .zone-card-body {
            padding: 1.5rem;
        }

        .zone-card-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }

        .zone-card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 1.25rem;
        }

        /* 服务矩阵 */
        .service-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            height: 100%;
            text-align: left;
        }

        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-strong);
        }

        .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(200, 145, 58, 0.2), rgba(232, 84, 42, 0.2));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            font-size: 1.5rem;
            margin-bottom: 1.25rem;
        }

        .service-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }

        .service-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* 对比卡 */
        .compare-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 2rem 1.75rem;
            box-shadow: var(--shadow-card);
            height: 100%;
            transition: all var(--transition-fast);
        }

        .compare-card.featured {
            border-color: var(--brand);
            box-shadow: inset 0 0 0 1px rgba(200, 145, 58, 0.15), var(--shadow-card);
        }

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

        .compare-heading {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1.25rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border);
        }

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

        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            padding: 0.6rem 0;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            border-bottom: 1px solid rgba(200, 145, 58, 0.08);
        }

        .compare-list li:last-child {
            border-bottom: none;
        }

        .compare-list li i {
            color: var(--success);
            font-size: 0.85rem;
            margin-top: 0.3rem;
            flex-shrink: 0;
        }

        .compare-list li i.negative {
            color: var(--accent);
        }

        /* 里程碑 */
        .timeline {
            position: relative;
            padding-left: 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, transparent, var(--border-strong), transparent);
            transform: translateX(-50%);
        }

        .timeline-item {
            position: relative;
            padding: 1.5rem 0;
            width: 50%;
        }

        .timeline-item:nth-child(odd) {
            padding-right: 3rem;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            margin-left: 50%;
            padding-left: 3rem;
            text-align: left;
        }

        .timeline-dot {
            position: absolute;
            top: 2.2rem;
            width: 14px;
            height: 14px;
            background-color: var(--brand);
            border-radius: 50%;
            border: 3px solid var(--bg-primary);
            box-shadow: 0 0 0 2px var(--border-strong);
        }

        .timeline-item:nth-child(odd) .timeline-dot {
            right: -7px;
        }

        .timeline-item:nth-child(even) .timeline-dot {
            left: -7px;
        }

        .timeline-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1.25rem 1.5rem;
            box-shadow: var(--shadow-card);
            display: inline-block;
            transition: all var(--transition-fast);
        }

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

        .timeline-year {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--brand);
            margin-bottom: 0.4rem;
        }

        .timeline-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .timeline::before {
                left: 20px;
            }

            .timeline-item,
            .timeline-item:nth-child(odd),
            .timeline-item:nth-child(even) {
                width: 100%;
                padding-left: 3rem;
                padding-right: 0;
                text-align: left;
                margin-left: 0;
            }

            .timeline-item:nth-child(odd) .timeline-dot,
            .timeline-item:nth-child(even) .timeline-dot {
                left: 13px;
                right: auto;
            }

            .timeline-card {
                display: block;
            }
        }

        /* 资讯卡片 */
        .news-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-strong);
        }

        .news-tag {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--highlight);
            background-color: rgba(200, 145, 58, 0.12);
            border: 1px solid rgba(200, 145, 58, 0.25);
            border-radius: var(--radius-badge);
            padding: 0.25rem 0.8rem;
            display: inline-block;
            margin-bottom: 0.75rem;
        }

        .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.55;
            margin-bottom: 0.6rem;
        }

        .news-summary {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.75rem;
            flex-grow: 1;
        }

        .news-meta {
            font-size: 0.8rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .news-meta i {
            font-size: 0.75rem;
        }

        /* 热门推荐 */
        .hot-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            height: 100%;
        }

        .hot-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-strong);
        }

        .hot-card-img {
            width: 100%;
            aspect-ratio: 3 / 2;
            object-fit: cover;
            background-color: var(--surface-light);
        }

        .hot-card-body {
            padding: 1.25rem;
        }

        .hot-card-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            line-height: 1.5;
        }

        .hot-card-badge {
            position: absolute;
            top: 0.75rem;
            right: 0.75rem;
        }

        .hot-img-wrap {
            position: relative;
        }

        /* 步骤卡片 */
        .step-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-card);
            height: 100%;
            text-align: left;
            transition: all var(--transition-fast);
            position: relative;
        }

        .step-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-strong);
        }

        .step-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--brand);
            line-height: 1;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        .step-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }

        .step-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* 保障卡 */
        .guarantee-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1.75rem 1.5rem;
            box-shadow: var(--shadow-card);
            height: 100%;
            text-align: left;
            transition: all var(--transition-fast);
        }

        .guarantee-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-strong);
        }

        .guarantee-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background-color: rgba(61, 139, 110, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--success);
            font-size: 1.4rem;
            margin-bottom: 1rem;
        }

        .guarantee-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .guarantee-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* 快速解答 */
        .qa-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            height: 100%;
            transition: all var(--transition-fast);
        }

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

        .qa-question {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }

        .qa-answer {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* 转化表单 */
        .cta-form-card {
            background-color: var(--surface);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-card);
            padding: 2.5rem;
            box-shadow: var(--shadow-card-hover);
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--bg-primary);
            border-top: 1px solid var(--border);
            padding: 3rem 0 2rem;
        }

        .footer-logo {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 1.5rem;
            max-width: 360px;
        }

        .footer-link {
            display: block;
            color: var(--text-secondary);
            font-size: 0.88rem;
            padding: 0.3rem 0;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-link:hover {
            color: var(--brand);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 1.5rem;
            margin-top: 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .footer-copy {
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .footer-copy a {
            color: var(--text-secondary);
            text-decoration: none;
        }

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

/* roulang page: category1 */
:root {
            --bg-primary: #15121E;
            --surface: #1E1A28;
            --surface-light: #282233;
            --brand: #C8913A;
            --accent: #E8542A;
            --accent-hover: #D94A20;
            --highlight: #D9B36C;
            --success: #3D8B6E;
            --text-primary: #F2EDE4;
            --text-secondary: #A8A0B8;
            --border: rgba(200, 145, 58, 0.25);
            --border-strong: rgba(200, 145, 58, 0.45);
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.35), 0 8px 24px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 6px 16px rgba(0, 0, 0, 0.45), 0 16px 40px rgba(0, 0, 0, 0.3);
            --radius-card: 12px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 999px;
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
            --section-padding-desktop: 3rem;
            --section-padding-mobile: 2rem;
            --transition-fast: 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.85;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--brand);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
        }
        .section-padding {
            padding-top: var(--section-padding-desktop);
            padding-bottom: var(--section-padding-desktop);
        }
        .section-surface {
            background-color: var(--surface);
        }
        .section-bg {
            background-color: var(--bg-primary);
        }
        .section-alt {
            background-color: var(--surface-light);
        }
        .section-title {
            font-size: clamp(1.35rem, 2.2vw, 1.8rem);
            font-weight: 650;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            margin-bottom: 0.75rem;
            position: relative;
            padding-left: 1rem;
            line-height: 1.4;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.1em;
            width: 4px;
            height: 1em;
            background-color: var(--brand);
            border-radius: 2px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 2.5rem;
            max-width: 760px;
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background-color: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 0.75rem 1.75rem;
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-brand:hover {
            background-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 84, 42, 0.35);
        }
        .btn-brand:active {
            transform: scale(0.97);
        }
        .btn-outline-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--brand);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-btn);
            padding: 0.75rem 1.75rem;
            font-size: 1rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-outline-brand:hover {
            background-color: rgba(200, 145, 58, 0.1);
            color: var(--highlight);
            border-color: var(--highlight);
            transform: translateY(-2px);
        }
        .btn-outline-brand:active {
            transform: scale(0.97);
        }
        .badge-gold {
            background-color: var(--brand);
            color: #15121E;
            border-radius: var(--radius-badge);
            padding: 0.35rem 1rem;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            display: inline-block;
        }
        .badge-coral {
            background-color: var(--accent);
            color: #fff;
            border-radius: var(--radius-badge);
            padding: 0.35rem 1rem;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            display: inline-block;
        }
        .badge-outline {
            background: transparent;
            color: var(--highlight);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-badge);
            padding: 0.3rem 0.9rem;
            font-size: 0.75rem;
            font-weight: 500;
            display: inline-block;
        }
        .card-base {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            overflow: hidden;
            position: relative;
        }
        .card-base::after {
            content: '';
            position: absolute;
            inset: 0;
            pointer-events: none;
            border-radius: var(--radius-card);
            box-shadow: inset 0 0 0 1px rgba(200, 145, 58, 0.08);
        }
        .card-base:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-strong);
        }
        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background-color: var(--bg-primary);
            border-bottom: 1px solid var(--border);
            padding: 0.75rem 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.25rem;
            flex-wrap: wrap;
        }
        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 0.625rem;
            text-decoration: none;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1.05rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2.25rem;
            height: 2.25rem;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--brand), var(--accent));
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .logo-text {
            color: var(--text-primary);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .nav-link-card {
            display: inline-flex;
            align-items: center;
            padding: 0.55rem 1.1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            border: 1px solid transparent;
            transition: all var(--transition-fast);
            position: relative;
            text-decoration: none;
            letter-spacing: 0.02em;
        }
        .nav-link-card:hover {
            color: var(--text-primary);
            background-color: rgba(200, 145, 58, 0.08);
        }
        .nav-link-card.active {
            color: var(--brand);
            background-color: var(--surface);
            border-color: var(--border);
            font-weight: 600;
        }
        .nav-link-card.active::after {
            content: '';
            position: absolute;
            left: 0.75rem;
            right: 0.75rem;
            bottom: -1px;
            height: 2px;
            background-color: var(--brand);
            border-radius: 2px;
        }
        .search-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2.25rem;
            height: 2.25rem;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: transparent;
            color: var(--text-secondary);
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .search-toggle:hover {
            color: var(--brand);
            border-color: var(--border-strong);
            background-color: rgba(200, 145, 58, 0.08);
        }
        .header-cta {
            white-space: nowrap;
        }
        .navbar-toggler-custom {
            display: none;
            align-items: center;
            justify-content: center;
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: transparent;
            color: var(--text-primary);
            font-size: 1.4rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .navbar-toggler-custom:hover {
            color: var(--brand);
            border-color: var(--border-strong);
        }
        .search-panel {
            display: none;
            margin-top: 0.75rem;
        }
        .search-panel.show {
            display: block;
        }
        .form-control-custom {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            color: var(--text-primary);
            padding: 0.7rem 1rem;
            font-size: 0.9rem;
            width: 100%;
            transition: border-color var(--transition-fast);
        }
        .form-control-custom:focus {
            outline: none;
            border-color: var(--highlight);
            box-shadow: 0 0 0 3px rgba(217, 179, 108, 0.15);
        }
        .form-control-custom::placeholder {
            color: var(--text-secondary);
            opacity: 0.7;
        }
        @media (max-width: 991.98px) {
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 0.25rem;
                padding: 0.75rem;
                background-color: var(--surface);
                border-radius: var(--radius-card);
                border: 1px solid var(--border);
                margin-top: 0.75rem;
            }
            .nav-menu.show {
                display: flex;
            }
            .nav-link-card {
                width: 100%;
                padding: 0.8rem 1rem;
                border-radius: 6px;
            }
            .nav-link-card.active::after {
                display: none;
            }
            .nav-link-card.active {
                border-left: 3px solid var(--brand);
            }
            .navbar-toggler-custom {
                display: inline-flex;
            }
            .header-cta {
                display: none;
            }
            .header-inner {
                flex-wrap: wrap;
            }
        }
        @media (max-width: 575.98px) {
            .logo-text {
                font-size: 0.9rem;
            }
            .logo-icon {
                width: 2rem;
                height: 2rem;
                font-size: 0.95rem;
            }
        }
        /* Footer */
        .site-footer {
            background-color: var(--bg-primary);
            border-top: 1px solid var(--border);
            padding: 3.5rem 0 2rem;
            margin-top: 0;
        }
        .footer-logo {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 320px;
        }
        .footer-link {
            display: block;
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0.5rem;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .footer-link:hover {
            color: var(--brand);
        }
        .footer-bottom {
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(200, 145, 58, 0.15);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .footer-copy {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .footer-copy a {
            color: var(--text-secondary);
        }
        .footer-copy a:hover {
            color: var(--brand);
        }
        /* Category H1 Section */
        .cat-h1-section {
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
            padding-top: 2.75rem;
            padding-bottom: 2.75rem;
            position: relative;
        }
        .cat-h1-section::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background-color: var(--brand);
        }
        .cat-h1 {
            font-size: clamp(1.5rem, 2.5vw, 2.1rem);
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            margin-bottom: 0.75rem;
            line-height: 1.35;
        }
        .cat-h1-sub {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 700px;
            margin-bottom: 0;
        }
        /* Category Entry Cards */
        .cat-entry-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1.5rem 1.25rem;
            text-align: center;
            transition: all var(--transition-fast);
            display: block;
            text-decoration: none;
            color: var(--text-primary);
            height: 100%;
        }
        .cat-entry-card:hover {
            transform: translateY(-3px);
            border-color: var(--border-strong);
            color: var(--text-primary);
            box-shadow: var(--shadow-card);
        }
        .cat-entry-icon {
            font-size: 1.75rem;
            color: var(--brand);
            margin-bottom: 0.75rem;
            display: block;
        }
        .cat-entry-name {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }
        /* List Cards */
        .video-list-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-fast);
            height: 100%;
            box-shadow: var(--shadow-card);
        }
        .video-list-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-strong);
            box-shadow: var(--shadow-card-hover);
        }
        .video-list-cover {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            background-color: var(--surface-light);
        }
        .video-list-body {
            padding: 1.25rem;
        }
        .video-list-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            line-height: 1.5;
        }
        .video-list-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0.75rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .video-list-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-secondary);
        }
        .video-list-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--brand);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            transition: color var(--transition-fast);
        }
        .video-list-link:hover {
            color: var(--accent);
        }
        /* Scene Cards */
        .scene-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 2rem 1.75rem;
            transition: all var(--transition-fast);
            height: 100%;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .scene-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--brand), var(--accent));
            border-radius: 2px 2px 0 0;
        }
        .scene-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-strong);
            box-shadow: var(--shadow-card-hover);
        }
        .scene-icon {
            font-size: 2rem;
            color: var(--brand);
            margin-bottom: 1rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 3.25rem;
            height: 3.25rem;
            border-radius: 10px;
            background-color: rgba(200, 145, 58, 0.1);
            border: 1px solid var(--border);
        }
        .scene-title {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
            line-height: 1.5;
        }
        .scene-desc {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        /* Quick Q&A */
        .qa-short-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1.5rem 1.5rem;
            height: 100%;
            transition: all var(--transition-fast);
        }
        .qa-short-card:hover {
            border-color: var(--border-strong);
        }
        .qa-short-question {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            line-height: 1.5;
        }
        .qa-short-answer {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }
        /* CTA Bar */
        .cta-bar {
            background-color: var(--surface);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-card);
            padding: 2.5rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .cta-bar::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--brand), var(--accent));
        }
        .cta-bar-title {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }
        .cta-bar-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin: 0 auto 1.5rem;
        }
        /* News Snapshot */
        .news-snapshot-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 1.25rem 1.5rem;
            transition: all var(--transition-fast);
            height: 100%;
        }
        .news-snapshot-card:hover {
            border-color: var(--border-strong);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }
        .news-snapshot-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.375rem;
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-snapshot-time {
            font-size: 0.78rem;
            color: var(--text-secondary);
            display: block;
            margin-bottom: 0.5rem;
        }
        .news-snapshot-link {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--brand);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .news-snapshot-link:hover {
            color: var(--accent);
        }
        /* Empty state */
        .empty-state {
            text-align: center;
            padding: 2rem 1rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        /* Responsive */
        @media (max-width: 991.98px) {
            :root {
                --section-padding-desktop: 2.5rem;
                --section-padding-mobile: 2rem;
            }
            .cat-h1-section {
                padding-top: 2rem;
                padding-bottom: 2rem;
            }
        }
        @media (max-width: 767.98px) {
            :root {
                --section-padding-desktop: 2rem;
                --section-padding-mobile: 1.75rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .cat-h1 {
                font-size: 1.3rem;
            }
            .cta-bar {
                padding: 1.75rem 1.25rem;
            }
            .cta-bar-title {
                font-size: 1.2rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 575.98px) {
            .section-subtitle {
                font-size: 0.9rem;
                margin-bottom: 1.5rem;
            }
            .btn-brand,
            .btn-outline-brand {
                padding: 0.65rem 1.25rem;
                font-size: 0.9rem;
            }
            .video-list-body {
                padding: 1rem;
            }
            .scene-card {
                padding: 1.5rem 1.25rem;
            }
            .news-snapshot-card {
                padding: 1rem 1.25rem;
            }
        }

/* roulang page: article */
/* ============ roulang design system ============ */
        :root {
            --bg-primary: #15121E;
            --surface: #1E1A28;
            --surface-light: #282233;
            --brand: #C8913A;
            --accent: #E8542A;
            --accent-hover: #D94A20;
            --highlight: #D9B36C;
            --success: #3D8B6E;
            --text-primary: #F2EDE4;
            --text-secondary: #A8A0B8;
            --border: rgba(200, 145, 58, 0.25);
            --border-strong: rgba(200, 145, 58, 0.45);
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.35), 0 8px 24px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 6px 16px rgba(0, 0, 0, 0.45), 0 16px 40px rgba(0, 0, 0, 0.3);
            --radius-card: 12px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 999px;
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
            --section-padding-desktop: 3rem;
            --section-padding-mobile: 2rem;
            --transition-fast: 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
        }

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.85;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--brand);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
        }

        .section-padding {
            padding-top: var(--section-padding-desktop);
            padding-bottom: var(--section-padding-desktop);
        }

        /* ============ Header / Navigation ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background-color: var(--bg-primary);
            border-bottom: 1px solid var(--border);
            padding: 0.65rem 0;
            transition: box-shadow var(--transition-fast);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1.05rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .logo-link:hover {
            color: var(--highlight);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2rem;
            height: 2rem;
            background-color: var(--brand);
            color: #15121E;
            border-radius: 8px;
            font-size: 1.2rem;
        }
        .logo-text {
            font-size: clamp(0.85rem, 1.6vw, 1rem);
            font-weight: 700;
            letter-spacing: 0.02em;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .nav-link-card {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.85rem;
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            border-radius: 8px;
            background: transparent;
            border: 1px solid transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link-card:hover {
            color: var(--text-primary);
            background-color: var(--surface);
            border-color: var(--border);
        }
        .nav-link-card.active {
            color: var(--brand);
            background-color: var(--surface);
            border-color: var(--border-strong);
        }
        .nav-link-card.active::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0.5rem;
            right: 0.5rem;
            height: 2px;
            background-color: var(--brand);
            border-radius: 2px;
        }

        .search-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2.3rem;
            height: 2.3rem;
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .search-toggle:hover {
            color: var(--text-primary);
            border-color: var(--border-strong);
            background-color: var(--surface);
        }

        .search-panel {
            display: none;
            padding-top: 0.65rem;
        }
        .search-panel.open {
            display: block;
        }
        .form-control-custom {
            width: 100%;
            padding: 0.65rem 1rem;
            background-color: var(--surface);
            color: var(--text-primary);
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            font-size: 0.9rem;
            font-family: var(--font-stack);
            transition: border-color var(--transition-fast);
        }
        .form-control-custom:focus {
            border-color: var(--highlight);
            outline: none;
            box-shadow: 0 0 0 3px rgba(217, 179, 108, 0.15);
        }
        .form-control-custom::placeholder {
            color: var(--text-secondary);
            opacity: 0.7;
        }

        .navbar-toggler-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2.3rem;
            height: 2.3rem;
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 1.3rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .navbar-toggler-custom:hover {
            background-color: var(--surface);
            border-color: var(--border-strong);
        }

        .header-cta {
            padding: 0.5rem 1.25rem;
            font-size: 0.85rem;
            white-space: nowrap;
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 4.5rem;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: var(--bg-primary);
            z-index: 1020;
            padding: 1.5rem;
            overflow-y: auto;
            border-top: 1px solid var(--border);
        }
        .mobile-nav-panel.open {
            display: block;
        }
        .mobile-nav-panel .nav-link-card {
            display: block;
            width: 100%;
            padding: 0.8rem 1rem;
            font-size: 1rem;
            border-left: 3px solid transparent;
            border-radius: 8px;
            margin-bottom: 0.5rem;
        }
        .mobile-nav-panel .nav-link-card.active {
            border-left-color: var(--brand);
        }

        /* ============ Buttons / Badges ============ */
        .btn-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background-color: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 0.75rem 1.75rem;
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            text-decoration: none;
            cursor: pointer;
            font-family: var(--font-stack);
        }
        .btn-brand:hover {
            background-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 84, 42, 0.35);
        }
        .btn-brand:active {
            transform: scale(0.97);
        }

        .btn-outline-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--brand);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-btn);
            padding: 0.75rem 1.75rem;
            font-size: 1rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            text-decoration: none;
            cursor: pointer;
            font-family: var(--font-stack);
        }
        .btn-outline-brand:hover {
            background-color: rgba(200, 145, 58, 0.1);
            color: var(--highlight);
            border-color: var(--highlight);
            transform: translateY(-2px);
        }
        .btn-outline-brand:active {
            transform: scale(0.97);
        }

        .badge-gold {
            background-color: var(--brand);
            color: #15121E;
            border-radius: var(--radius-badge);
            padding: 0.35rem 1rem;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            display: inline-block;
        }
        .badge-coral {
            background-color: var(--accent);
            color: #fff;
            border-radius: var(--radius-badge);
            padding: 0.35rem 1rem;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            display: inline-block;
        }
        .badge-outline {
            background: transparent;
            color: var(--highlight);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-badge);
            padding: 0.3rem 0.9rem;
            font-size: 0.75rem;
            font-weight: 500;
            display: inline-block;
        }

        .card-base {
            background-color: var(--surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-fast);
            overflow: hidden;
        }
        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-strong);
            transform: translateY(-4px);
        }

        /* ============ Article Page Specific ============ */
        .article-page {
            padding-top: 6.5rem;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border);
        }
        .article-breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .article-breadcrumb a:hover {
            color: var(--brand);
        }
        .article-breadcrumb .sep {
            color: var(--border-strong);
        }
        .article-breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
        }

        .article-header-section {
            margin-bottom: 2rem;
        }
        .article-header-section h1 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            line-height: 1.45;
            margin-bottom: 1rem;
        }
        .article-excerpt {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 820px;
        }

        .article-cover {
            margin-bottom: 1.5rem;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
        }
        .article-cover img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 1.25rem;
            padding: 1rem 0;
            border-bottom: 1px solid var(--border);
            margin-bottom: 2rem;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .article-meta i {
            color: var(--brand);
            font-size: 0.9rem;
        }

        .article-content-area {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 1rem;
            font-size: 0.98rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-content-area p {
            margin-bottom: 1.25em;
            color: var(--text-primary);
        }
        .article-content-area h2 {
            font-size: 1.35rem;
            font-weight: 650;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            margin-top: 2rem;
            margin-bottom: 1rem;
            position: relative;
            padding-left: 0.85rem;
            line-height: 1.5;
        }
        .article-content-area h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.15em;
            width: 4px;
            height: 1em;
            background-color: var(--brand);
            border-radius: 2px;
        }
        .article-content-area h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-top: 1.5rem;
            margin-bottom: 0.75rem;
            line-height: 1.5;
        }
        .article-content-area ul,
        .article-content-area ol {
            padding-left: 1.5rem;
            margin-bottom: 1.25em;
        }
        .article-content-area ul li,
        .article-content-area ol li {
            margin-bottom: 0.5em;
            color: var(--text-primary);
        }
        .article-content-area blockquote {
            border-left: 4px solid var(--brand);
            background-color: var(--surface);
            padding: 1rem 1.25rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
            font-style: italic;
            color: var(--text-secondary);
        }
        .article-content-area img {
            border-radius: 8px;
            margin: 1.5rem auto;
            border: 1px solid var(--border);
            max-width: 100%;
        }
        .article-content-area a {
            color: var(--brand);
            border-bottom: 1px dashed var(--border-strong);
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }
        .article-content-area a:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .article-content-area code {
            background-color: var(--surface-light);
            padding: 0.15rem 0.5rem;
            border-radius: 4px;
            font-size: 0.85em;
            color: var(--highlight);
        }
        .article-content-area pre {
            background-color: var(--surface);
            padding: 1rem 1.25rem;
            border-radius: 8px;
            border: 1px solid var(--border);
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        .article-content-area pre code {
            background: transparent;
            padding: 0;
            color: var(--text-secondary);
        }

        .article-empty {
            text-align: center;
            padding: 4rem 1rem;
        }
        .article-empty p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

        .article-cta {
            max-width: 800px;
            margin: 3rem auto 0;
            padding: 2rem 1.5rem;
            background-color: var(--surface);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            text-align: center;
        }
        .article-cta h3 {
            font-size: 1.2rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .article-cta p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 1.25rem;
        }

        .article-related {
            max-width: 1000px;
            margin: 3rem auto 0;
        }
        .article-related .section-title {
            font-size: clamp(1.25rem, 2vw, 1.6rem);
        }
        .related-card {
            background-color: var(--surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 1.25rem;
            height: 100%;
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-strong);
            transform: translateY(-4px);
        }
        .related-card .related-badge {
            margin-bottom: 0.75rem;
        }
        .related-card h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 0.5rem;
            flex-grow: 1;
        }
        .related-card h4 a {
            color: var(--text-primary);
            transition: color var(--transition-fast);
        }
        .related-card h4 a:hover {
            color: var(--brand);
        }
        .related-card .related-excerpt {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0.75rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .related-date {
            font-size: 0.78rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }
        .related-card .related-date i {
            color: var(--brand);
        }

        .article-back {
            text-align: center;
            padding: 2rem 1rem 1rem;
        }

        .article-guide-brief {
            max-width: 800px;
            margin: 2rem auto 0;
            padding: 2rem 1.5rem;
            background-color: var(--surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
        }
        .article-guide-brief .mini-step {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--border);
        }
        .article-guide-brief .mini-step:last-child {
            border-bottom: none;
        }
        .article-guide-brief .mini-step-num {
            flex-shrink: 0;
            width: 2.2rem;
            height: 2.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: var(--brand);
            color: #15121E;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 8px;
        }
        .article-guide-brief .mini-step h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.25rem;
        }
        .article-guide-brief .mini-step p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ============ Footer ============ */
        .site-footer {
            background-color: var(--bg-primary);
            border-top: 1px solid var(--border);
            padding: 3rem 0 2rem;
            margin-top: 3rem;
        }
        .footer-logo {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 320px;
        }
        .footer-link {
            display: block;
            font-size: 0.85rem;
            color: var(--text-secondary);
            padding: 0.25rem 0;
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .footer-link:hover {
            color: var(--brand);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            margin-top: 2rem;
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
        }
        .footer-copy {
            font-size: 0.8rem;
            color: var(--text-secondary);
        }
        .footer-copy a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-copy a:hover {
            color: var(--brand);
        }

        /* ============ Responsive ============ */
        @media (max-width: 1200px) {
            .container {
                max-width: 100%;
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (max-width: 992px) {
            .nav-menu {
                display: none;
            }
            .search-toggle {
                display: none;
            }
            .navbar-toggler-custom {
                display: inline-flex;
            }
            .article-page {
                padding-top: 5.5rem;
            }
        }
        @media (min-width: 993px) {
            .navbar-toggler-custom {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .article-header-section h1 {
                font-size: 1.4rem;
            }
            .article-meta {
                gap: 0.75rem;
                font-size: 0.8rem;
                flex-wrap: wrap;
            }
            .article-content-area {
                padding: 0 0.5rem;
                font-size: 0.92rem;
            }
            .article-cta {
                padding: 1.5rem 1.25rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 576px) {
            .article-breadcrumb {
                font-size: 0.75rem;
                gap: 0.3rem;
            }
            .article-header-section h1 {
                font-size: 1.25rem;
            }
            .article-excerpt {
                font-size: 0.9rem;
            }
            .article-meta {
                font-size: 0.75rem;
            }
            .article-cta h3 {
                font-size: 1.05rem;
            }
            .btn-brand,
            .btn-outline-brand {
                padding: 0.65rem 1.25rem;
                font-size: 0.9rem;
            }
        }

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