/* roulang page: index */
:root {
            --brand-primary: #c8102e;
            --brand-primary-dark: #a00d26;
            --brand-accent: #ffb400;
            --brand-deep: #1a1a2e;
            --brand-deep-2: #16213e;
            --brand-surface: #ffffff;
            --brand-bg: #f7f7f3;
            --brand-bg-alt: #f0f0e8;
            --brand-text: #1d1d1f;
            --brand-text-secondary: #55555a;
            --brand-text-muted: #8e8e93;
            --brand-border: #e5e5e0;
            --brand-radius-sm: 10px;
            --brand-radius-md: 18px;
            --brand-radius-lg: 28px;
            --brand-radius-xl: 36px;
            --brand-shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.06);
            --brand-shadow-md: 0 10px 30px rgba(0, 0, 0, 0.10);
            --brand-shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.14);
            --brand-font-sans: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --brand-transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --brand-container: 1200px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--brand-font-sans);
            background-color: var(--brand-bg);
            color: var(--brand-text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        .btn:focus,
        a:focus,
        button:focus {
            outline: 3px solid rgba(200, 16, 46, 0.35);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--brand-container);
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 导航 */
        .navbar-custom {
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--brand-border);
            padding: 14px 0;
            transition: var(--brand-transition);
            z-index: 1030;
            position: relative;
        }

        .navbar-custom .navbar-brand {
            font-weight: 800;
            font-size: 1.55rem;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .navbar-custom .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--brand-primary);
            color: #fff;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 900;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .navbar-custom .navbar-brand:hover {
            color: var(--brand-deep);
        }
        .navbar-custom .navbar-brand span {
            color: var(--brand-primary);
        }

        .navbar-custom .nav-link {
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--brand-text-secondary);
            margin: 0 6px;
            padding: 8px 14px !important;
            border-radius: 999px;
            transition: var(--brand-transition);
            position: relative;
        }
        .navbar-custom .nav-link:hover {
            color: var(--brand-deep);
            background: var(--brand-bg-alt);
        }
        .navbar-custom .nav-link.active {
            color: #fff;
            background: var(--brand-primary);
        }
        .navbar-custom .nav-link.active:hover {
            background: var(--brand-primary-dark);
            color: #fff;
        }

        .navbar-toggler {
            border: none;
            box-shadow: none;
            font-size: 1.4rem;
            color: var(--brand-deep);
            padding: 6px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 3px solid rgba(200, 16, 46, 0.35);
        }

        /* Hero */
        .hero-bento {
            padding: 70px 0 90px;
            background: linear-gradient(180deg, #fff 0%, var(--brand-bg) 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-bento::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -160px;
            width: 520px;
            height: 520px;
            background: radial-gradient(circle, rgba(200, 16, 46, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-bento::after {
            content: '';
            position: absolute;
            bottom: -180px;
            left: -100px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(255, 180, 0, 0.10) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-main-card {
            background: var(--brand-deep);
            border-radius: var(--brand-radius-lg);
            padding: 48px 44px;
            color: #fff;
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            background-image: linear-gradient(135deg, rgba(26, 26, 46, 0.92) 0%, rgba(22, 33, 62, 0.88) 55%, rgba(200, 16, 46, 0.68) 100%), url('/assets/images/6f301b0318ed9ce4.jpg');
            background-size: cover;
            background-position: center;
            box-shadow: var(--brand-shadow-lg);
        }
        .hero-main-card .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.22);
            color: #fff;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.4px;
            width: fit-content;
            margin-bottom: 22px;
        }
        .hero-main-card h1 {
            font-size: clamp(2rem, 4.5vw, 3.4rem);
            font-weight: 900;
            line-height: 1.18;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
            color: #fff;
            max-width: 740px;
        }
        .hero-main-card h1 .highlight {
            color: var(--brand-accent);
        }
        .hero-main-card p.hero-desc {
            font-size: 1.1rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.82);
            max-width: 680px;
            margin-bottom: 30px;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .btn-hero-primary {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            padding: 13px 30px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.3px;
            transition: var(--brand-transition);
            box-shadow: 0 8px 22px rgba(200, 16, 46, 0.35);
        }
        .btn-hero-primary:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(200, 16, 46, 0.45);
        }
        .btn-hero-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            padding: 13px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--brand-transition);
        }
        .btn-hero-outline:hover {
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        .hero-bento-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 24px;
        }
        .hero-side-cards {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .hero-small-card {
            flex: 1;
            border-radius: var(--brand-radius-lg);
            padding: 28px 30px;
            box-shadow: var(--brand-shadow-md);
            position: relative;
            overflow: hidden;
            min-height: 180px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            transition: var(--brand-transition);
            cursor: default;
        }
        .hero-small-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--brand-shadow-lg);
        }
        .hero-small-card.card-1 {
            background: #fff;
            border: 1px solid var(--brand-border);
        }
        .hero-small-card.card-2 {
            background: linear-gradient(135deg, var(--brand-deep-2) 0%, #0f3460 100%);
            color: #fff;
        }
        .hero-small-card .small-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 14px;
            flex-shrink: 0;
        }
        .hero-small-card.card-1 .small-icon {
            background: rgba(200, 16, 46, 0.10);
            color: var(--brand-primary);
        }
        .hero-small-card.card-2 .small-icon {
            background: rgba(255, 255, 255, 0.15);
            color: var(--brand-accent);
        }
        .hero-small-card h3 {
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 8px;
            letter-spacing: -0.2px;
            color: inherit;
        }
        .hero-small-card p {
            font-size: 0.92rem;
            margin-bottom: 0;
            color: var(--brand-text-secondary);
            line-height: 1.6;
        }
        .hero-small-card.card-2 p {
            color: rgba(255, 255, 255, 0.78);
        }
        .hero-cta-strip {
            background: #fff;
            border-radius: var(--brand-radius-md);
            padding: 18px 26px;
            box-shadow: var(--brand-shadow-sm);
            border: 1px solid var(--brand-border);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            margin-top: 6px;
        }
        .hero-cta-strip p {
            margin: 0;
            font-weight: 600;
            color: var(--brand-deep);
        }
        .hero-cta-strip .btn-outline-sm {
            background: transparent;
            border: 1.5px solid var(--brand-primary);
            color: var(--brand-primary);
            padding: 8px 20px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.88rem;
            transition: var(--brand-transition);
            white-space: nowrap;
        }
        .hero-cta-strip .btn-outline-sm:hover {
            background: var(--brand-primary);
            color: #fff;
        }

        /* 数据指标条 */
        .metrics-strip {
            background: var(--brand-deep);
            padding: 32px 0;
            color: #fff;
            border-top: 1px solid rgba(255,255,255,0.08);
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .metrics-strip .metric-item {
            text-align: center;
            padding: 10px 16px;
        }
        .metrics-strip .metric-number {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 900;
            color: var(--brand-accent);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .metrics-strip .metric-label {
            font-size: 0.86rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
            letter-spacing: 0.3px;
        }

        /* 板块通用 */
        .section-block {
            padding: 72px 0;
        }
        .section-block.alt-bg {
            background: var(--brand-bg-alt);
        }
        .section-block.white-bg {
            background: #fff;
        }
        .section-header {
            margin-bottom: 44px;
        }
        .section-header .section-tag {
            display: inline-block;
            background: rgba(200, 16, 46, 0.09);
            color: var(--brand-primary);
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.6px;
            text-transform: uppercase;
            padding: 5px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
        }
        .section-header h2 {
            font-size: clamp(1.7rem, 3.5vw, 2.4rem);
            font-weight: 900;
            letter-spacing: -0.5px;
            color: var(--brand-deep);
            margin-bottom: 14px;
            line-height: 1.25;
        }
        .section-header p {
            font-size: 1.06rem;
            color: var(--brand-text-secondary);
            max-width: 760px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .section-title-dark h2 {
            color: #fff;
        }
        .section-title-dark p {
            color: rgba(255, 255, 255, 0.75);
        }

        /* 内容卡片 */
        .content-card {
            background: #fff;
            border-radius: var(--brand-radius-md);
            overflow: hidden;
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
            transition: var(--brand-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--brand-shadow-md);
            border-color: rgba(200, 16, 46, 0.18);
        }
        .content-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #e8e8e4;
            flex-shrink: 0;
        }
        .content-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--brand-transition);
        }
        .content-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .content-card .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(26, 26, 46, 0.82);
            backdrop-filter: blur(8px);
            color: #fff;
            padding: 5px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .content-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .content-card .card-title {
            font-size: 1.08rem;
            font-weight: 800;
            color: var(--brand-deep);
            margin-bottom: 8px;
            letter-spacing: -0.2px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card .card-text {
            font-size: 0.92rem;
            color: var(--brand-text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            font-size: 0.82rem;
            color: var(--brand-text-muted);
        }
        .content-card .card-link {
            font-weight: 700;
            color: var(--brand-primary);
            font-size: 0.88rem;
        }
        .content-card .card-link:hover {
            color: var(--brand-primary-dark);
        }
        .content-card .card-link i {
            font-size: 0.75rem;
            margin-left: 4px;
        }

        /* 分类入口 */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .category-tile {
            background: #fff;
            border-radius: var(--brand-radius-md);
            padding: 26px 22px;
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
            text-align: left;
            transition: var(--brand-transition);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }
        .category-tile:hover {
            transform: translateY(-5px);
            box-shadow: var(--brand-shadow-md);
            border-color: rgba(200, 16, 46, 0.2);
        }
        .category-tile .tile-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, #e8455f 100%);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            margin-bottom: 14px;
            flex-shrink: 0;
        }
        .category-tile h3 {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--brand-deep);
            margin-bottom: 6px;
            letter-spacing: -0.2px;
        }
        .category-tile p {
            font-size: 0.86rem;
            color: var(--brand-text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* 特色亮点 */
        .feature-card {
            background: #fff;
            border-radius: var(--brand-radius-md);
            padding: 30px 26px;
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
            height: 100%;
            transition: var(--brand-transition);
            position: relative;
        }
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--brand-shadow-md);
        }
        .feature-card .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: rgba(200, 16, 46, 0.08);
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--brand-deep);
            margin-bottom: 10px;
            letter-spacing: -0.2px;
        }
        .feature-card p {
            font-size: 0.94rem;
            color: var(--brand-text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* 数据快照 */
        .data-snapshot {
            background: var(--brand-deep);
            border-radius: var(--brand-radius-lg);
            padding: 44px 42px;
            color: #fff;
            box-shadow: var(--brand-shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .data-snapshot::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 180, 0, 0.16) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .data-snapshot .data-number {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 900;
            color: var(--brand-accent);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .data-snapshot .data-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.72);
            margin-top: 4px;
        }
        .data-snapshot .data-divider {
            width: 1px;
            background: rgba(255, 255, 255, 0.18);
            height: 60px;
            margin: 0 auto;
        }

        /* 评价卡片 */
        .testimonial-card {
            background: #fff;
            border-radius: var(--brand-radius-md);
            padding: 26px 24px;
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
            height: 100%;
            transition: var(--brand-transition);
        }
        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--brand-shadow-md);
        }
        .testimonial-card .testimonial-stars {
            color: var(--brand-accent);
            font-size: 0.9rem;
            margin-bottom: 12px;
            letter-spacing: 2px;
        }
        .testimonial-card .testimonial-text {
            font-size: 0.96rem;
            color: var(--brand-text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .testimonial-card .testimonial-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-card .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .testimonial-card .testimonial-name {
            font-weight: 700;
            color: var(--brand-deep);
            font-size: 0.92rem;
        }
        .testimonial-card .testimonial-role {
            font-size: 0.8rem;
            color: var(--brand-text-muted);
        }

        /* FAQ */
        .faq-card {
            background: #fff;
            border-radius: var(--brand-radius-md);
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
            overflow: hidden;
        }
        .faq-card .accordion-item {
            border: none;
            border-bottom: 1px solid var(--brand-border);
            background: transparent;
        }
        .faq-card .accordion-item:last-child {
            border-bottom: none;
        }
        .faq-card .accordion-button {
            background: #fff;
            color: var(--brand-deep);
            font-weight: 700;
            font-size: 1rem;
            padding: 20px 24px;
            box-shadow: none;
            transition: var(--brand-transition);
        }
        .faq-card .accordion-button:not(.collapsed) {
            color: var(--brand-primary);
            background: #fff;
            box-shadow: none;
        }
        .faq-card .accordion-button:focus {
            box-shadow: none;
            outline: 3px solid rgba(200, 16, 46, 0.25);
            outline-offset: -2px;
        }
        .faq-card .accordion-body {
            padding: 0 24px 22px;
            color: var(--brand-text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* CTA 区域 */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-deep) 0%, var(--brand-primary) 100%);
            border-radius: var(--brand-radius-xl);
            padding: 52px 44px;
            color: #fff;
            text-align: center;
            box-shadow: var(--brand-shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -120px;
            left: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 900;
            letter-spacing: -0.4px;
            margin-bottom: 16px;
            color: #fff;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .btn-cta-primary {
            background: #fff;
            color: var(--brand-primary);
            border: none;
            padding: 14px 36px;
            border-radius: 999px;
            font-weight: 800;
            font-size: 1rem;
            letter-spacing: 0.3px;
            transition: var(--brand-transition);
            box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
        }
        .btn-cta-primary:hover {
            background: var(--brand-accent);
            color: var(--brand-deep);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
        }

        /* 页脚 */
        .footer-custom {
            background: var(--brand-deep);
            color: rgba(255, 255, 255, 0.72);
            padding: 64px 0 32px;
            margin-top: 72px;
        }
        .footer-custom .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-custom .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--brand-primary);
            color: #fff;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 900;
        }
        .footer-custom .footer-desc {
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 340px;
            margin-bottom: 20px;
        }
        .footer-custom .footer-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-custom .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-custom .footer-links li {
            margin-bottom: 10px;
        }
        .footer-custom .footer-links a {
            color: rgba(255, 255, 255, 0.62);
            font-size: 0.9rem;
            transition: var(--brand-transition);
        }
        .footer-custom .footer-links a:hover {
            color: #fff;
        }
        .footer-custom .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin: 32px 0 20px;
            padding-top: 20px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
            text-align: center;
        }

        /* 移动端底部导航 */
        .mobile-bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--brand-border);
            z-index: 1040;
            padding: 8px 0 10px;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.07);
        }
        .mobile-bottom-nav .mobile-tab {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            color: var(--brand-text-muted);
            font-size: 0.7rem;
            font-weight: 600;
            transition: var(--brand-transition);
            text-decoration: none;
            padding: 4px 8px;
            border-radius: 12px;
        }
        .mobile-bottom-nav .mobile-tab i {
            font-size: 1.2rem;
        }
        .mobile-bottom-nav .mobile-tab.active {
            color: var(--brand-primary);
        }
        .mobile-bottom-nav .mobile-tab:hover {
            color: var(--brand-primary);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .hero-bento-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .hero-main-card {
                min-height: 380px;
                padding: 38px 34px;
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-snapshot {
                padding: 36px 30px;
            }
        }

        @media (max-width: 768px) {
            .navbar-custom .navbar-brand {
                font-size: 1.3rem;
            }
            .navbar-custom .navbar-brand .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
                border-radius: 10px;
            }
            .hero-bento {
                padding: 50px 0 64px;
            }
            .hero-main-card {
                min-height: 340px;
                padding: 30px 26px;
                border-radius: var(--brand-radius-md);
            }
            .hero-main-card h1 {
                font-size: 1.85rem;
            }
            .hero-main-card p.hero-desc {
                font-size: 0.98rem;
            }
            .hero-small-card {
                padding: 22px 20px;
                min-height: 150px;
            }
            .section-block {
                padding: 52px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .section-header p {
                font-size: 0.96rem;
            }
            .category-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .data-snapshot {
                padding: 30px 22px;
                border-radius: var(--brand-radius-md);
            }
            .data-snapshot .data-divider {
                height: 1px;
                width: 100%;
                margin: 16px 0;
            }
            .footer-custom {
                padding: 44px 0 80px;
                margin-top: 48px;
            }
            .mobile-bottom-nav {
                display: block;
            }
            body {
                padding-bottom: 70px;
            }
            .cta-section {
                padding: 36px 24px;
                border-radius: var(--brand-radius-lg);
            }
            .hero-cta-strip {
                padding: 14px 18px;
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-main-card {
                padding: 24px 20px;
                min-height: 300px;
                border-radius: var(--brand-radius-md);
            }
            .hero-main-card h1 {
                font-size: 1.55rem;
            }
            .hero-main-card p.hero-desc {
                font-size: 0.92rem;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
            .hero-small-card h3 {
                font-size: 1rem;
            }
            .hero-small-card p {
                font-size: 0.84rem;
            }
            .section-header {
                margin-bottom: 30px;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .content-card .card-body {
                padding: 16px 16px 18px;
            }
            .content-card .card-title {
                font-size: 0.98rem;
            }
            .feature-card {
                padding: 22px 18px;
            }
            .feature-card h3 {
                font-size: 1rem;
            }
            .testimonial-card {
                padding: 20px 16px;
            }
            .faq-card .accordion-button {
                font-size: 0.92rem;
                padding: 16px 18px;
            }
            .faq-card .accordion-body {
                padding: 0 18px 18px;
                font-size: 0.88rem;
            }
            .btn-cta-primary {
                padding: 12px 28px;
                font-size: 0.92rem;
            }
        }

        /* 通用工具 */
        .text-brand-primary {
            color: var(--brand-primary) !important;
        }
        .text-brand-accent {
            color: var(--brand-accent) !important;
        }
        .bg-brand-deep {
            background-color: var(--brand-deep) !important;
        }
        .fw-black {
            font-weight: 900 !important;
        }
        .rounded-brand {
            border-radius: var(--brand-radius-md) !important;
        }

/* roulang page: article */
:root {
            --brand-primary: #c8102e;
            --brand-primary-dark: #a00d26;
            --brand-accent: #ffb400;
            --brand-deep: #1a1a2e;
            --brand-deep-2: #16213e;
            --brand-surface: #ffffff;
            --brand-bg: #f7f7f3;
            --brand-bg-alt: #f0f0e8;
            --brand-text: #1d1d1f;
            --brand-text-secondary: #55555a;
            --brand-text-muted: #8e8e93;
            --brand-border: #e5e5e0;
            --brand-radius-sm: 10px;
            --brand-radius-md: 18px;
            --brand-radius-lg: 28px;
            --brand-radius-xl: 36px;
            --brand-shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.06);
            --brand-shadow-md: 0 10px 30px rgba(0, 0, 0, 0.10);
            --brand-shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.14);
            --brand-font-sans: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --brand-transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --brand-container: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--brand-font-sans);
            background-color: var(--brand-bg);
            color: var(--brand-text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            padding-bottom: 70px;
        }

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

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

        a:hover {
            color: var(--brand-primary-dark);
            text-decoration: none;
        }

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

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

        .btn:focus,
        a:focus,
        button:focus {
            outline: 3px solid rgba(200, 16, 46, 0.35);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--brand-container);
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 导航 */
        .navbar-custom {
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--brand-border);
            padding: 14px 0;
            transition: var(--brand-transition);
            z-index: 1030;
            position: relative;
        }

        .navbar-custom .navbar-brand {
            font-weight: 800;
            font-size: 1.55rem;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .navbar-custom .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--brand-primary);
            color: #fff;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 900;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

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

        .navbar-custom .navbar-brand span {
            color: var(--brand-primary);
        }

        .navbar-custom .nav-link {
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--brand-text-secondary);
            margin: 0 6px;
            padding: 8px 14px !important;
            border-radius: 999px;
            transition: var(--brand-transition);
            position: relative;
        }

        .navbar-custom .nav-link:hover {
            color: var(--brand-deep);
            background: var(--brand-bg-alt);
        }

        .navbar-custom .nav-link.active {
            color: #fff;
            background: var(--brand-primary);
        }

        .navbar-custom .nav-link.active:hover {
            background: var(--brand-primary-dark);
            color: #fff;
        }

        .navbar-toggler {
            border: none;
            box-shadow: none;
            font-size: 1.4rem;
            color: var(--brand-deep);
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 3px solid rgba(200, 16, 46, 0.35);
        }

        /* 底部移动 Tab 导航 */
        .bottom-tab-nav {
            display: flex;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--brand-border);
            padding: 8px 8px;
            box-shadow: 0 -6px 24px rgba(0, 0, 0, 0.08);
        }

        .bottom-tab-nav .tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--brand-text-muted);
            padding: 6px 8px;
            border-radius: 12px;
            transition: var(--brand-transition);
            text-align: center;
        }

        .bottom-tab-nav .tab-item i {
            font-size: 1.25rem;
            line-height: 1;
        }

        .bottom-tab-nav .tab-item:hover {
            color: var(--brand-text);
            background: var(--brand-bg-alt);
        }

        .bottom-tab-nav .tab-item.active {
            color: var(--brand-primary);
            background: rgba(200, 16, 46, 0.08);
        }

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

        /* 面包屑 */
        .article-breadcrumb-section {
            padding: 32px 0 0;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--brand-text-muted);
            margin-bottom: 0;
            list-style: none;
        }

        .breadcrumb-custom a {
            color: var(--brand-text-secondary);
            font-weight: 500;
        }

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

        .breadcrumb-custom .separator {
            color: var(--brand-text-muted);
            font-size: 0.8rem;
        }

        .breadcrumb-custom .current {
            color: var(--brand-primary);
            font-weight: 600;
            max-width: 360px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* 文章头部 */
        .article-header-section {
            padding: 28px 0 0;
        }

        .article-header-card {
            background: var(--brand-surface);
            border-radius: var(--brand-radius-lg);
            padding: 40px 44px;
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
            position: relative;
            overflow: hidden;
        }

        .article-header-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 5px;
            background: linear-gradient(90deg, var(--brand-primary) 0%, var(--brand-accent) 100%);
        }

        .article-heading {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.35;
            color: var(--brand-deep);
            letter-spacing: -0.5px;
            margin-bottom: 0;
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--brand-primary);
            color: #fff;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.4px;
        }

        .article-meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            margin-top: 18px;
            padding-top: 20px;
            border-top: 1px solid var(--brand-border);
        }

        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--brand-text-secondary);
        }

        .article-meta-item i {
            color: var(--brand-primary);
            font-size: 0.95rem;
        }

        /* 文章正文 */
        .article-content-section {
            padding: 28px 0 20px;
        }

        .article-body-wrapper {
            display: grid;
            grid-template-columns: minmax(0, 1fr);
            gap: 32px;
        }

        @media (min-width: 992px) {
            .article-body-wrapper {
                grid-template-columns: minmax(0, 1fr) 320px;
            }
        }

        .article-main-body {
            background: var(--brand-surface);
            border-radius: var(--brand-radius-lg);
            padding: 44px;
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
        }

        .article-cover-image {
            width: 100%;
            max-height: 460px;
            object-fit: cover;
            border-radius: var(--brand-radius-md);
            margin-bottom: 28px;
            box-shadow: var(--brand-shadow-md);
        }

        .article-main-body .article-text {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--brand-text);
        }

        .article-main-body .article-text p {
            margin-bottom: 18px;
        }

        .article-main-body .article-text h2,
        .article-main-body .article-text h3,
        .article-main-body .article-text h4 {
            font-weight: 700;
            color: var(--brand-deep);
            margin-top: 28px;
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .article-main-body .article-text h2 {
            font-size: 1.55rem;
        }

        .article-main-body .article-text h3 {
            font-size: 1.3rem;
        }

        .article-main-body .article-text h4 {
            font-size: 1.1rem;
        }

        .article-main-body .article-text ul,
        .article-main-body .article-text ol {
            margin: 16px 0;
            padding-left: 24px;
        }

        .article-main-body .article-text li {
            margin-bottom: 8px;
        }

        .article-main-body .article-text img {
            border-radius: var(--brand-radius-md);
            margin: 20px 0;
            box-shadow: var(--brand-shadow-sm);
        }

        .article-main-body .article-text blockquote {
            border-left: 4px solid var(--brand-primary);
            padding: 16px 20px;
            margin: 24px 0;
            background: rgba(200, 16, 46, 0.04);
            border-radius: 0 var(--brand-radius-sm) var(--brand-radius-sm) 0;
            font-style: italic;
            color: var(--brand-text-secondary);
        }

        .article-main-body .article-text strong {
            color: var(--brand-deep);
            font-weight: 700;
        }

        .not-found-card {
            text-align: center;
            padding: 60px 20px;
            background: var(--brand-surface);
            border-radius: var(--brand-radius-lg);
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
        }

        .not-found-card .not-found-icon {
            font-size: 3rem;
            color: var(--brand-text-muted);
            margin-bottom: 20px;
        }

        .not-found-card h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--brand-deep);
            margin-bottom: 12px;
        }

        .not-found-card p {
            color: var(--brand-text-secondary);
            margin-bottom: 24px;
        }

        /* 侧边栏 */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-card {
            background: var(--brand-surface);
            border-radius: var(--brand-radius-md);
            padding: 24px;
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
        }

        .sidebar-card .sidebar-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-deep);
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 2px solid rgba(200, 16, 46, 0.2);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card .sidebar-title i {
            color: var(--brand-primary);
        }

        /* 内容亮点 */
        .article-takeaways-section {
            padding: 24px 0;
        }

        .takeaways-card {
            background: linear-gradient(135deg, var(--brand-deep) 0%, var(--brand-deep-2) 100%);
            border-radius: var(--brand-radius-lg);
            padding: 36px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .takeaways-card::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(255, 180, 0, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .takeaways-title {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 20px;
            letter-spacing: -0.3px;
            position: relative;
            z-index: 1;
        }

        .takeaway-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            position: relative;
            z-index: 1;
        }

        .takeaway-item {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--brand-radius-sm);
            padding: 16px 18px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.92rem;
            line-height: 1.55;
        }

        .takeaway-item i {
            color: var(--brand-accent);
            font-size: 1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* 相关推荐 */
        .article-related-section {
            padding: 24px 0;
        }

        .related-heading {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--brand-deep);
            margin-bottom: 0;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .related-heading i {
            color: var(--brand-primary);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 24px;
        }

        .related-card {
            background: var(--brand-surface);
            border-radius: var(--brand-radius-md);
            overflow: hidden;
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow-sm);
            transition: var(--brand-transition);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--brand-shadow-md);
            border-color: rgba(200, 16, 46, 0.25);
        }

        .related-card .related-image {
            width: 100%;
            height: 190px;
            object-fit: cover;
        }

        .related-card .related-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card .related-tag {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        .related-card .related-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-deep);
            line-height: 1.45;
            margin-bottom: 10px;
        }

        .related-card .related-excerpt {
            font-size: 0.85rem;
            color: var(--brand-text-secondary);
            line-height: 1.6;
            flex: 1;
        }

        .related-card .related-link {
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 12px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* CTA */
        .article-cta-section {
            padding: 24px 0 48px;
        }

        .cta-banner {
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
            border-radius: var(--brand-radius-lg);
            padding: 44px 48px;
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-banner .cta-text {
            position: relative;
            z-index: 1;
        }

        .cta-banner .cta-text h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }

        .cta-banner .cta-text p {
            font-size: 0.95rem;
            margin-bottom: 0;
            opacity: 0.9;
            max-width: 520px;
        }

        .cta-banner .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .cta-banner .btn-cta-light {
            background: #fff;
            color: var(--brand-primary);
            border: none;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }

        .cta-banner .btn-cta-light:hover {
            background: var(--brand-bg-alt);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
            color: var(--brand-primary-dark);
        }

        .cta-banner .btn-cta-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
            padding: 10px 26px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--brand-transition);
        }

        .cta-banner .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* 页脚 */
        .footer-custom {
            background: var(--brand-deep);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 24px;
            margin-top: 40px;
        }

        .footer-custom .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-custom .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--brand-primary);
            color: #fff;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 900;
            flex-shrink: 0;
        }

        .footer-custom .footer-desc {
            font-size: 0.9rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.65);
            max-width: 360px;
        }

        .footer-custom .footer-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.4px;
        }

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

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

        .footer-custom .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.88rem;
            transition: var(--brand-transition);
        }

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

        .footer-custom .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 40px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* 响应式 */
        @media (max-width: 991.98px) {
            .article-header-card {
                padding: 28px 24px;
            }

            .article-heading {
                font-size: 1.65rem;
            }

            .article-main-body {
                padding: 24px 20px;
            }

            .takeaways-card {
                padding: 28px 24px;
            }

            .cta-banner {
                padding: 32px 28px;
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-banner .cta-text h3 {
                font-size: 1.35rem;
            }
        }

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

            .article-header-card {
                padding: 22px 18px;
                border-radius: var(--brand-radius-md);
            }

            .article-heading {
                font-size: 1.4rem;
            }

            .article-meta-row {
                gap: 12px;
                flex-wrap: wrap;
            }

            .article-meta-item {
                font-size: 0.82rem;
            }

            .article-main-body {
                padding: 20px 16px;
                border-radius: var(--brand-radius-md);
            }

            .article-cover-image {
                max-height: 260px;
                border-radius: var(--brand-radius-sm);
            }

            .article-main-body .article-text {
                font-size: 0.95rem;
                line-height: 1.8;
            }

            .takeaways-card {
                padding: 22px 18px;
                border-radius: var(--brand-radius-md);
            }

            .takeaways-title {
                font-size: 1.2rem;
            }

            .takeaway-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .cta-banner {
                padding: 26px 20px;
                border-radius: var(--brand-radius-md);
            }

            .cta-banner .cta-text h3 {
                font-size: 1.25rem;
            }

            .cta-banner .cta-actions {
                flex-direction: column;
                width: 100%;
            }

            .cta-banner .btn-cta-light,
            .cta-banner .btn-cta-outline {
                width: 100%;
                text-align: center;
                justify-content: center;
            }

            .article-breadcrumb-section {
                padding-top: 20px;
            }

            .breadcrumb-custom {
                font-size: 0.8rem;
                gap: 6px;
            }

            .breadcrumb-custom .current {
                max-width: 180px;
            }

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

            .footer-custom {
                padding: 40px 0 20px;
            }
        }

        @media (max-width: 519.98px) {
            .article-heading {
                font-size: 1.25rem;
            }

            .article-category-badge {
                font-size: 0.75rem;
                padding: 5px 12px;
            }

            .article-meta-row {
                flex-direction: column;
                gap: 10px;
                align-items: flex-start;
            }

            .article-main-body .article-text h2 {
                font-size: 1.3rem;
            }

            .article-main-body .article-text h3 {
                font-size: 1.15rem;
            }

            .breadcrumb-custom {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 4px;
            }

            .breadcrumb-custom .current {
                max-width: 140px;
                flex-shrink: 0;
            }
        }

/* roulang page: category1 */
:root {
            --brand-primary: #c8102e;
            --brand-primary-dark: #a00d26;
            --brand-accent: #ffb400;
            --brand-deep: #1a1a2e;
            --brand-deep-2: #16213e;
            --brand-surface: #ffffff;
            --brand-bg: #f7f7f3;
            --brand-bg-alt: #f0f0e8;
            --brand-text: #1d1d1f;
            --brand-text-secondary: #55555a;
            --brand-text-muted: #8e8e93;
            --brand-border: #e5e5e0;
            --brand-radius-sm: 10px;
            --brand-radius-md: 18px;
            --brand-radius-lg: 28px;
            --brand-radius-xl: 36px;
            --brand-shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.06);
            --brand-shadow-md: 0 10px 30px rgba(0, 0, 0, 0.10);
            --brand-shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.14);
            --brand-font-sans: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --brand-transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --brand-container: 1200px;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        
        body {
            font-family: var(--brand-font-sans);
            background-color: var(--brand-bg);
            color: var(--brand-text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            padding-bottom: 0;
        }
        
        a {
            color: var(--brand-primary);
            text-decoration: none;
            transition: var(--brand-transition);
        }
        
        a:hover {
            color: var(--brand-primary-dark);
            text-decoration: none;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        
        .btn:focus,
        a:focus,
        button:focus {
            outline: 3px solid rgba(200, 16, 46, 0.35);
            outline-offset: 2px;
        }
        
        .container {
            max-width: var(--brand-container);
            padding-left: 24px;
            padding-right: 24px;
        }
        
        /* 导航 */
        .navbar-custom {
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--brand-border);
            padding: 14px 0;
            transition: var(--brand-transition);
            z-index: 1030;
            position: relative;
        }
        
        .navbar-custom .navbar-brand {
            font-weight: 800;
            font-size: 1.55rem;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .navbar-custom .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--brand-primary);
            color: #fff;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 900;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        
        .navbar-custom .navbar-brand:hover {
            color: var(--brand-deep);
        }
        
        .navbar-custom .navbar-brand span {
            color: var(--brand-primary);
        }
        
        .navbar-custom .nav-link {
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--brand-text-secondary);
            margin: 0 6px;
            padding: 8px 14px !important;
            border-radius: 999px;
            transition: var(--brand-transition);
            position: relative;
        }
        
        .navbar-custom .nav-link:hover {
            color: var(--brand-deep);
            background: var(--brand-bg-alt);
        }
        
        .navbar-custom .nav-link.active {
            color: #fff;
            background: var(--brand-primary);
        }
        
        .navbar-custom .nav-link.active:hover {
            background: var(--brand-primary-dark);
            color: #fff;
        }
        
        .navbar-toggler {
            border: none;
            box-shadow: none;
            font-size: 1.4rem;
            color: var(--brand-deep);
            padding: 6px 10px;
        }
        
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 3px solid rgba(200, 16, 46, 0.35);
        }
        
        /* 移动端底部Tab导航 */
        .mobile-bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: #ffffff;
            border-top: 1px solid var(--brand-border);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
            padding: 8px 0 env(safe-area-inset-bottom, 0);
            justify-content: space-around;
            align-items: center;
        }
        
        .mobile-bottom-nav .mobile-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--brand-text-muted);
            transition: var(--brand-transition);
            padding: 4px 12px;
            border-radius: 12px;
            min-width: 70px;
            text-align: center;
        }
        
        .mobile-bottom-nav .mobile-nav-item i {
            font-size: 1.2rem;
            line-height: 1;
        }
        
        .mobile-bottom-nav .mobile-nav-item:hover {
            color: var(--brand-deep);
        }
        
        .mobile-bottom-nav .mobile-nav-item.active {
            color: var(--brand-primary);
        }
        
        @media (max-width: 768px) {
            .mobile-bottom-nav {
                display: flex;
            }
            body {
                padding-bottom: 72px;
            }
            .footer-custom {
                padding-bottom: 40px;
            }
        }
        
        /* 面包屑 */
        .breadcrumb-wrap {
            background: transparent;
            padding: 20px 0 0;
            margin: 0;
        }
        
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--brand-text-muted);
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .breadcrumb-custom li + li::before {
            content: '/';
            color: var(--brand-text-muted);
            font-size: 0.75rem;
        }
        
        .breadcrumb-custom a {
            color: var(--brand-text-secondary);
            font-weight: 500;
        }
        
        .breadcrumb-custom a:hover {
            color: var(--brand-primary);
        }
        
        .breadcrumb-custom .current {
            color: var(--brand-primary);
            font-weight: 600;
        }
        
        /* 分类Hero */
        .category-hero {
            padding: 28px 0 60px;
            background: linear-gradient(180deg, #ffffff 0%, var(--brand-bg) 100%);
            position: relative;
            overflow: hidden;
        }
        
        .category-hero::before {
            content: '';
            position: absolute;
            top: -140px;
            right: -120px;
            width: 460px;
            height: 460px;
            background: radial-gradient(circle, rgba(200, 16, 46, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -160px;
            left: -100px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(255, 180, 0, 0.08) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        .category-hero .hero-content {
            position: relative;
            z-index: 1;
            padding: 10px 0 20px;
        }
        
        .category-hero .eyebrow {
            display: inline-block;
            background: rgba(200, 16, 46, 0.08);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 0.82rem;
            letter-spacing: 1.5px;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 18px;
            text-transform: uppercase;
        }
        
        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--brand-deep);
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            line-height: 1.25;
        }
        
        .category-hero .hero-desc {
            font-size: 1.1rem;
            color: var(--brand-text-secondary);
            max-width: 640px;
            margin-bottom: 24px;
            line-height: 1.8;
        }
        
        .category-hero .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        
        .btn-brand {
            background: var(--brand-primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.98rem;
            padding: 12px 28px;
            border-radius: 999px;
            border: none;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        
        .btn-brand:hover,
        .btn-brand:focus {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--brand-shadow-md);
        }
        
        .btn-outline-brand {
            background: transparent;
            color: var(--brand-deep);
            font-weight: 600;
            font-size: 0.98rem;
            padding: 12px 28px;
            border-radius: 999px;
            border: 1.5px solid var(--brand-border);
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        
        .btn-outline-brand:hover,
        .btn-outline-brand:focus {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: rgba(200, 16, 46, 0.03);
        }
        
        .category-hero .hero-image-wrap {
            position: relative;
            z-index: 1;
            border-radius: var(--brand-radius-lg);
            overflow: hidden;
            box-shadow: var(--brand-shadow-lg);
            min-height: 340px;
            background: var(--brand-deep);
        }
        
        .category-hero .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 340px;
        }
        
        .category-hero .hero-image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 28px 24px;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, transparent 100%);
            color: #fff;
        }
        
        .category-hero .hero-image-overlay .badge-overlay {
            display: inline-block;
            background: var(--brand-accent);
            color: var(--brand-deep);
            font-weight: 700;
            font-size: 0.75rem;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 8px;
        }
        
        .category-hero .hero-image-overlay h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0;
        }
        
        /* 通用section */
        .section-pad {
            padding: 64px 0;
        }
        
        .section-pad-sm {
            padding: 48px 0;
        }
        
        .section-alt {
            background: #ffffff;
        }
        
        .section-head {
            margin-bottom: 36px;
        }
        
        .section-head .section-eyebrow {
            display: inline-block;
            font-weight: 700;
            font-size: 0.75rem;
            letter-spacing: 2px;
            color: var(--brand-primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        
        .section-head h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
            margin-bottom: 10px;
        }
        
        .section-head p {
            color: var(--brand-text-secondary);
            max-width: 620px;
            font-size: 1rem;
            margin: 0;
        }
        
        /* 频道矩阵 */
        .channel-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        
        .channel-card {
            background: #fff;
            border-radius: var(--brand-radius-md);
            overflow: hidden;
            border: 1px solid var(--brand-border);
            transition: var(--brand-transition);
            display: block;
            color: var(--brand-text);
        }
        
        .channel-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--brand-shadow-md);
            color: var(--brand-text);
        }
        
        .channel-card .channel-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--brand-bg-alt);
        }
        
        .channel-card .channel-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--brand-transition);
        }
        
        .channel-card:hover .channel-img img {
            transform: scale(1.05);
        }
        
        .channel-card .channel-body {
            padding: 18px 18px 20px;
        }
        
        .channel-card .channel-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-deep);
            margin-bottom: 4px;
        }
        
        .channel-card .channel-body p {
            font-size: 0.85rem;
            color: var(--brand-text-muted);
            margin: 0;
        }
        
        /* 卖点卡片 */
        .feature-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        
        .feature-card {
            background: #fff;
            border-radius: var(--brand-radius-md);
            padding: 28px 24px;
            border: 1px solid var(--brand-border);
            transition: var(--brand-transition);
            height: 100%;
        }
        
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--brand-shadow-sm);
            border-color: rgba(200, 16, 46, 0.2);
        }
        
        .feature-card .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(200, 16, 46, 0.08);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
        }
        
        .feature-card h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--brand-deep);
            margin-bottom: 8px;
        }
        
        .feature-card p {
            font-size: 0.92rem;
            color: var(--brand-text-secondary);
            margin: 0;
            line-height: 1.65;
        }
        
        /* 流程步骤 */
        .steps-horizontal {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }
        
        .step-item {
            background: #fff;
            border-radius: var(--brand-radius-md);
            padding: 26px 22px;
            border: 1px solid var(--brand-border);
            position: relative;
            transition: var(--brand-transition);
        }
        
        .step-item:hover {
            border-color: rgba(200, 16, 46, 0.25);
            box-shadow: var(--brand-shadow-sm);
        }
        
        .step-item .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
            margin-bottom: 14px;
        }
        
        .step-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--brand-deep);
            margin-bottom: 6px;
        }
        
        .step-item p {
            font-size: 0.86rem;
            color: var(--brand-text-secondary);
            margin: 0;
        }
        
        /* 数据统计 */
        .stats-dashboard {
            background: var(--brand-deep);
            border-radius: var(--brand-radius-lg);
            padding: 40px 36px;
            color: #fff;
        }
        
        .stats-dashboard .stat-item {
            text-align: center;
            padding: 12px 8px;
        }
        
        .stats-dashboard .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            line-height: 1.2;
            display: block;
        }
        
        .stats-dashboard .stat-num .suffix {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--brand-accent);
        }
        
        .stats-dashboard .stat-label {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }
        
        /* 用户评价 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        
        .testimonial-card {
            background: #fff;
            border-radius: var(--brand-radius-md);
            padding: 28px 24px;
            border: 1px solid var(--brand-border);
            height: 100%;
            transition: var(--brand-transition);
        }
        
        .testimonial-card:hover {
            box-shadow: var(--brand-shadow-sm);
        }
        
        .testimonial-card .stars {
            color: var(--brand-accent);
            font-size: 0.85rem;
            margin-bottom: 12px;
        }
        
        .testimonial-card blockquote {
            font-size: 0.95rem;
            color: var(--brand-text-secondary);
            border-left: 3px solid var(--brand-primary);
            padding-left: 16px;
            margin: 0 0 16px;
            font-style: normal;
        }
        
        .testimonial-card .user {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .testimonial-card .user .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--brand-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--brand-primary);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        
        .testimonial-card .user .user-info h5 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--brand-deep);
            margin: 0;
        }
        
        .testimonial-card .user .user-info span {
            font-size: 0.78rem;
            color: var(--brand-text-muted);
        }
        
        /* 适用场景 */
        .scene-pills {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        
        .scene-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 999px;
            padding: 10px 22px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--brand-text-secondary);
            transition: var(--brand-transition);
        }
        
        .scene-pill:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            transform: translateY(-2px);
            box-shadow: var(--brand-shadow-sm);
        }
        
        .scene-pill i {
            color: var(--brand-accent);
            font-size: 0.85rem;
        }
        
        /* 资讯列表 */
        .content-list-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        
        .content-card {
            background: #fff;
            border-radius: var(--brand-radius-md);
            overflow: hidden;
            border: 1px solid var(--brand-border);
            transition: var(--brand-transition);
            display: flex;
            flex-direction: column;
            color: var(--brand-text);
        }
        
        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--brand-shadow-md);
            color: var(--brand-text);
        }
        
        .content-card .content-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--brand-bg-alt);
        }
        
        .content-card .content-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--brand-transition);
        }
        
        .content-card:hover .content-img img {
            transform: scale(1.04);
        }
        
        .content-card .content-body {
            padding: 18px 18px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        
        .content-card .content-cat {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--brand-primary);
            background: rgba(200, 16, 46, 0.07);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        
        .content-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--brand-deep);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        
        .content-card p {
            font-size: 0.85rem;
            color: var(--brand-text-secondary);
            margin: 0 0 12px;
            line-height: 1.6;
            flex: 1;
        }
        
        .content-card time {
            font-size: 0.78rem;
            color: var(--brand-text-muted);
        }
        
        .empty-state {
            background: #fff;
            border: 1px dashed var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 40px 24px;
            text-align: center;
            color: var(--brand-text-muted);
            font-size: 1rem;
        }
        
        .view-more-wrap {
            text-align: center;
            margin-top: 32px;
        }
        
        /* FAQ */
        .faq-custom .accordion-item {
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
        }
        
        .faq-custom .accordion-button {
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--brand-deep);
            background: #fff;
            padding: 18px 22px;
            border: none;
            box-shadow: none !important;
        }
        
        .faq-custom .accordion-button:not(.collapsed) {
            background: #fff;
            color: var(--brand-primary);
        }
        
        .faq-custom .accordion-button:focus {
            outline: 3px solid rgba(200, 16, 46, 0.35);
            outline-offset: -2px;
        }
        
        .faq-custom .accordion-body {
            padding: 16px 22px 20px;
            color: var(--brand-text-secondary);
            font-size: 0.92rem;
            line-height: 1.75;
        }
        
        /* CTA横幅 */
        .cta-banner {
            background: var(--brand-deep);
            border-radius: var(--brand-radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }
        
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -90px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(200, 16, 46, 0.35) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(255, 180, 0, 0.2) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        .cta-banner .cta-content {
            position: relative;
            z-index: 1;
        }
        
        .cta-banner h2 {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
            color: #fff;
        }
        
        .cta-banner p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin-bottom: 24px;
        }
        
        .btn-accent {
            background: var(--brand-accent);
            color: var(--brand-deep);
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: 999px;
            border: none;
            transition: var(--brand-transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        
        .btn-accent:hover,
        .btn-accent:focus {
            background: #e6a200;
            color: var(--brand-deep);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
        }
        
        /* 页脚 */
        .footer-custom {
            background: var(--brand-deep);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        
        .footer-custom .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        
        .footer-custom .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--brand-primary);
            color: #fff;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 900;
            flex-shrink: 0;
        }
        
        .footer-custom .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 340px;
            color: rgba(255, 255, 255, 0.65);
        }
        
        .footer-custom .footer-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        
        .footer-custom .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-custom .footer-links li {
            margin-bottom: 8px;
        }
        
        .footer-custom .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.85rem;
            transition: var(--brand-transition);
        }
        
        .footer-custom .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        
        .footer-custom .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 40px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }
        
        /* 响应式 */
        @media (max-width: 1024px) {
            .channel-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-horizontal {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-list-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero {
                padding: 20px 0 40px;
            }
            .category-hero .hero-image-wrap {
                margin-top: 28px;
                min-height: 240px;
            }
            .category-hero .hero-image-wrap img {
                min-height: 240px;
            }
            .section-pad {
                padding: 48px 0;
            }
            .channel-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .feature-list {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .steps-horizontal {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .content-list-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-dashboard .stat-num {
                font-size: 1.8rem;
            }
            .cta-banner {
                padding: 36px 24px;
            }
            .cta-banner h2 {
                font-size: 1.4rem;
            }
            .section-head h2 {
                font-size: 1.5rem;
            }
            .navbar-custom .navbar-brand {
                font-size: 1.3rem;
            }
            .navbar-custom .navbar-brand .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
        }
        
        @media (max-width: 520px) {
            .channel-grid {
                grid-template-columns: 1fr;
            }
            .steps-horizontal {
                grid-template-columns: 1fr;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .category-hero .hero-desc {
                font-size: 0.98rem;
            }
            .btn-brand,
            .btn-outline-brand {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .section-head h2 {
                font-size: 1.35rem;
            }
            .stats-dashboard {
                padding: 28px 18px;
            }
            .stats-dashboard .stat-num {
                font-size: 1.5rem;
            }
            .footer-custom {
                padding: 40px 0 30px;
            }
            .footer-custom .footer-desc {
                max-width: 100%;
            }
        }

/* 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}