/* roulang page: index */
:root {
            --brand-primary: #0d4f7a;
            --brand-primary-dark: #083a5c;
            --brand-primary-light: #e8f1f8;
            --brand-accent: #c8953d;
            --brand-accent-light: #fdf6e9;
            --bg-page: #f6f8fb;
            --bg-white: #ffffff;
            --text-dark: #1a2532;
            --text-body: #334150;
            --text-muted: #6b7a8a;
            --text-light: #94a3b2;
            --border-color: #e2e8f0;
            --border-light: #edf1f5;
            --shadow-sm: 0 2px 8px rgba(13, 79, 122, 0.06);
            --shadow-md: 0 6px 24px rgba(13, 79, 122, 0.1);
            --shadow-lg: 0 16px 48px rgba(13, 79, 122, 0.14);
            --shadow-xl: 0 24px 64px rgba(13, 79, 122, 0.18);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition-fast: 180ms ease;
            --transition-base: 280ms ease;
            --transition-slow: 420ms ease;
            --font-heading: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --container-max: 1200px;
            --header-height: 76px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

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

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(13, 79, 122, 0.35);
            outline-offset: 2px;
        }

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

        button, .btn {
            font-family: var(--font-body);
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.35;
            margin-top: 0;
        }

        h1 {
            font-size: clamp(2rem, 4.2vw, 3.2rem);
            letter-spacing: -0.5px;
        }

        h2 {
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            letter-spacing: -0.3px;
        }

        h3 {
            font-size: clamp(1.2rem, 2vw, 1.5rem);
        }

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

        .section-pad {
            padding: 72px 0;
        }

        .section-pad-sm {
            padding: 48px 0;
        }

        .section-title-block {
            margin-bottom: 40px;
        }

        .section-title-block .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--brand-primary);
            background: var(--brand-primary-light);
            padding: 6px 16px;
            border-radius: 30px;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .section-title-block .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 720px;
            margin-top: 12px;
        }

        /* ========== HEADER / 杂志刊头导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 12px rgba(13, 79, 122, 0.04);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .site-header .brand-logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--brand-primary-dark);
            letter-spacing: -0.3px;
            white-space: nowrap;
            line-height: 1.3;
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .site-header .brand-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

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

        .site-header .nav-divider {
            width: 1px;
            height: 28px;
            background: var(--border-color);
            margin: 0 8px;
        }

        .site-header .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .site-header .main-nav .nav-link-item {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-body);
            padding: 6px 2px;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .site-header .main-nav .nav-link-item::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--brand-primary);
            border-radius: 2px;
            transition: width var(--transition-base);
        }

        .site-header .main-nav .nav-link-item:hover,
        .site-header .main-nav .nav-link-item.active {
            color: var(--brand-primary);
        }

        .site-header .main-nav .nav-link-item:hover::after,
        .site-header .main-nav .nav-link-item.active::after {
            width: 100%;
        }

        .site-header .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .site-header .header-phone {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .site-header .header-phone i {
            color: var(--brand-accent);
        }

        .navbar-toggler {
            border: none;
            padding: 8px;
            background: transparent;
            color: var(--text-dark);
            font-size: 1.5rem;
            display: none;
        }

        /* ========== BUTTONS ========== */
        .btn {
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 24px;
            transition: all var(--transition-base);
            border: 2px solid transparent;
            letter-spacing: 0.2px;
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

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

        .btn-primary-custom {
            background: var(--brand-primary);
            color: #ffffff;
            border-color: var(--brand-primary);
            box-shadow: 0 4px 16px rgba(13, 79, 122, 0.25);
        }

        .btn-primary-custom:hover {
            background: var(--brand-primary-dark);
            border-color: var(--brand-primary-dark);
            color: #ffffff;
            box-shadow: 0 8px 24px rgba(13, 79, 122, 0.35);
            transform: translateY(-2px);
        }

        .btn-accent-custom {
            background: var(--brand-accent);
            color: #ffffff;
            border-color: var(--brand-accent);
            box-shadow: 0 4px 16px rgba(200, 149, 61, 0.28);
        }

        .btn-accent-custom:hover {
            background: #b07d2a;
            border-color: #b07d2a;
            color: #ffffff;
            box-shadow: 0 8px 24px rgba(200, 149, 61, 0.38);
            transform: translateY(-2px);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--brand-primary);
            border-color: var(--brand-primary);
        }

        .btn-outline-custom:hover {
            background: var(--brand-primary-light);
            border-color: var(--brand-primary);
            color: var(--brand-primary-dark);
            transform: translateY(-2px);
        }

        .btn-light-custom {
            background: #ffffff;
            color: var(--brand-primary-dark);
            border-color: #ffffff;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
        }

        .btn-light-custom:hover {
            background: #f0f4f8;
            border-color: #f0f4f8;
            color: var(--brand-primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
        }

        .btn-lg-custom {
            padding: 16px 32px;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
        }

        /* ========== HERO / 品牌旗舰店 ========== */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background: var(--brand-primary-dark);
            overflow: hidden;
        }

        .hero-section .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            z-index: 0;
        }

        .hero-section .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 30, 48, 0.6) 0%, rgba(8, 30, 48, 0.78) 50%, rgba(8, 30, 48, 0.9) 100%);
            z-index: 1;
        }

        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0 120px;
            width: 100%;
        }

        .hero-section .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.16);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #ffffff;
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }

        .hero-section .hero-title {
            color: #ffffff;
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 700;
            letter-spacing: -1px;
            line-height: 1.25;
            margin-bottom: 18px;
            max-width: 800px;
        }

        .hero-section .hero-desc {
            color: rgba(255, 255, 255, 0.88);
            font-size: 1.1rem;
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 30px;
        }

        .hero-section .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }

        .hero-section .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.18);
        }

        .hero-section .hero-stat {
            color: #ffffff;
        }

        .hero-section .hero-stat .stat-number {
            font-size: 1.8rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .hero-section .hero-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.72);
            margin-top: 4px;
        }

        .hero-section .hero-series-nav {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 2;
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding: 14px 0;
        }

        .hero-section .hero-series-nav .series-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            justify-content: flex-start;
        }

        .hero-section .hero-series-nav .series-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #ffffff;
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

        .hero-section .hero-series-nav .series-item:hover {
            background: rgba(255, 255, 255, 0.25);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-1px);
        }

        /* ========== 裂变说明 ========== */
        .referral-section {
            background: var(--bg-white);
        }

        .referral-section .referral-card {
            background: var(--bg-page);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }

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

        .referral-section .referral-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--brand-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-primary);
            font-size: 1.6rem;
            margin-bottom: 18px;
        }

        .referral-section .referral-card h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }

        .referral-section .referral-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* ========== 邀请进度 ========== */
        .progress-section {
            background: var(--bg-page);
        }

        .progress-section .progress-panel {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .progress-section .progress-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 20px;
        }

        .progress-section .progress-header .progress-label {
            font-weight: 600;
            color: var(--text-dark);
            font-size: 1.1rem;
        }

        .progress-section .progress-header .progress-count {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .progress-section .progress {
            height: 12px;
            border-radius: 30px;
            background: var(--border-light);
            overflow: hidden;
        }

        .progress-section .progress-bar {
            background: linear-gradient(90deg, var(--brand-primary), #2a7ab8);
            border-radius: 30px;
            transition: width 1s ease;
        }

        .progress-section .progress-mile {
            display: flex;
            justify-content: space-between;
            margin-top: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* ========== 排行榜 ========== */
        .ranking-section {
            background: var(--bg-white);
        }

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

        .ranking-section .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 18px;
            border-radius: var(--radius-md);
            background: var(--bg-page);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            transition: all var(--transition-fast);
        }

        .ranking-section .ranking-item:hover {
            background: var(--brand-primary-light);
            border-color: rgba(13, 79, 122, 0.2);
            transform: translateX(4px);
        }

        .ranking-section .rank-badge {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
            color: #ffffff;
            background: var(--brand-primary);
        }

        .ranking-section .rank-badge.rank-1 {
            background: #c8953d;
        }
        .ranking-section .rank-badge.rank-2 {
            background: #8a9baa;
        }
        .ranking-section .rank-badge.rank-3 {
            background: #b07d4a;
        }

        .ranking-section .rank-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-section .rank-name {
            font-weight: 600;
            color: var(--text-dark);
            font-size: 1rem;
            margin-bottom: 2px;
        }

        .ranking-section .rank-detail {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .ranking-section .rank-score {
            font-weight: 700;
            color: var(--brand-primary);
            font-size: 1.1rem;
            white-space: nowrap;
        }

        /* ========== 资讯区 ========== */
        .news-section {
            background: var(--bg-page);
        }

        .news-section .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
        }

        .news-section .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-section .news-item {
            display: flex;
            gap: 16px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 16px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }

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

        .news-section .news-thumb {
            width: 100px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--border-light);
        }

        .news-section .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .news-section .news-item:hover .news-thumb img {
            transform: scale(1.05);
        }

        .news-section .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-section .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-section .news-title a {
            color: var(--text-dark);
            transition: color var(--transition-fast);
        }

        .news-section .news-title a:hover {
            color: var(--brand-primary);
        }

        .news-section .news-meta {
            font-size: 0.82rem;
            color: var(--text-light);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .news-section .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-section .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .news-section .sidebar-card h4 {
            font-size: 1rem;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .news-section .sidebar-card .sidebar-link {
            display: block;
            padding: 8px 0;
            font-size: 0.9rem;
            color: var(--text-body);
            border-bottom: 1px dashed var(--border-light);
            transition: color var(--transition-fast);
        }

        .news-section .sidebar-card .sidebar-link:last-child {
            border-bottom: none;
        }

        .news-section .sidebar-card .sidebar-link:hover {
            color: var(--brand-primary);
            padding-left: 4px;
        }

        /* ========== 领取 CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-primary-dark) 0%, var(--brand-primary) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section .cta-overlay-pattern {
            position: absolute;
            right: -80px;
            top: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            z-index: 0;
        }

        .cta-section .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-section h2 {
            color: #ffffff;
            margin-bottom: 16px;
        }

        .cta-section .cta-desc {
            color: rgba(255, 255, 255, 0.82);
            font-size: 1.05rem;
            margin-bottom: 30px;
        }

        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* ========== 底部固定转化条 ========== */
        .fixed-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            box-shadow: 0 -4px 24px rgba(13, 79, 122, 0.1);
            padding: 12px 0;
            transform: translateY(100%);
            transition: transform var(--transition-slow);
        }

        .fixed-cta-bar.visible {
            transform: translateY(0);
        }

        .fixed-cta-bar .fixed-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .fixed-cta-bar .fixed-cta-text {
            flex: 1;
            min-width: 0;
        }

        .fixed-cta-bar .fixed-cta-text strong {
            color: var(--text-dark);
            font-size: 1rem;
            display: block;
        }

        .fixed-cta-bar .fixed-cta-text span {
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        .fixed-cta-bar .btn {
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0b1c2b;
            color: rgba(255, 255, 255, 0.72);
            padding: 56px 0 32px;
        }

        .site-footer .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .site-footer .footer-desc {
            font-size: 0.88rem;
            max-width: 360px;
            line-height: 1.8;
        }

        .site-footer .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin: 32px 0 20px;
        }

        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
        }

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

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero-section {
                min-height: 540px;
            }
            .hero-section .hero-content {
                padding: 60px 0 100px;
            }
            .news-section .news-layout {
                grid-template-columns: 1fr;
            }
            .news-section .news-sidebar {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .news-section .sidebar-card {
                flex: 1;
                min-width: 240px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .section-pad {
                padding: 48px 0;
            }
            .section-pad-sm {
                padding: 32px 0;
            }
            .site-header .header-inner {
                flex-wrap: wrap;
                gap: 8px;
            }
            .site-header .brand-logo {
                font-size: 1rem;
            }
            .site-header .brand-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
                border-radius: 8px;
            }
            .site-header .nav-divider {
                display: none;
            }
            .site-header .main-nav {
                gap: 14px;
                flex-wrap: wrap;
            }
            .site-header .main-nav .nav-link-item {
                font-size: 0.85rem;
            }
            .site-header .header-phone {
                display: none;
            }
            .navbar-toggler {
                display: block;
                order: 3;
            }
            .site-header .main-nav-wrapper {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                padding: 16px 20px;
                z-index: 100;
            }
            .site-header .main-nav-wrapper.show {
                display: block;
            }
            .site-header .main-nav {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .hero-section {
                min-height: auto;
                padding: 40px 0 0;
            }
            .hero-section .hero-content {
                padding: 40px 0 90px;
            }
            .hero-section .hero-title {
                font-size: 1.8rem;
            }
            .hero-section .hero-desc {
                font-size: 0.95rem;
            }
            .hero-section .hero-stats {
                gap: 20px;
            }
            .hero-section .hero-stat .stat-number {
                font-size: 1.4rem;
            }
            .hero-section .hero-series-nav {
                position: relative;
                bottom: auto;
                padding: 10px 0;
            }
            .hero-section .hero-series-nav .series-item {
                padding: 6px 14px;
                font-size: 0.78rem;
            }
            .progress-section .progress-panel {
                padding: 24px;
            }
            .ranking-section .ranking-item {
                padding: 12px 14px;
                gap: 12px;
            }
            .ranking-section .rank-badge {
                width: 34px;
                height: 34px;
                font-size: 0.85rem;
            }
            .news-section .news-item {
                flex-direction: column;
            }
            .news-section .news-thumb {
                width: 100%;
                height: 160px;
            }
            .fixed-cta-bar .fixed-cta-text span {
                display: none;
            }
            .site-footer {
                padding: 40px 0 24px;
            }
        }

        @media (max-width: 520px) {
            .hero-section .hero-cta-row {
                flex-direction: column;
            }
            .hero-section .hero-cta-row .btn {
                width: 100%;
            }
            .hero-section .hero-stats {
                gap: 16px;
                flex-wrap: wrap;
            }
            .progress-section .progress-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .fixed-cta-bar .fixed-cta-inner {
                gap: 8px;
            }
            .fixed-cta-bar .btn {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
        }

/* 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}