/* roulang page: index */
/* ============ 设计变量 ============ */
        :root {
            --primary: #F472B6;
            --primary-dark: #DB2777;
            --secondary: #C084FC;
            --accent: #F9A8D4;
            --bg-body: #FFF8FA;
            --bg-white: #FFFFFF;
            --bg-soft: #FDF2F5;
            --text-strong: #2B2F36;
            --text-body: #3E434A;
            --text-muted: #6B7280;
            --border-color: rgba(244, 114, 182, 0.15);
            --gradient-main: linear-gradient(135deg, #FF8FAB, #E879F9);
            --gradient-soft: linear-gradient(135deg, rgba(255, 143, 171, 0.12), rgba(232, 121, 249, 0.12));
            --gradient-hero: linear-gradient(135deg, rgba(255, 143, 171, 0.9), rgba(232, 121, 249, 0.82));
            --gradient-dark: linear-gradient(135deg, rgba(43, 47, 54, 0.88), rgba(219, 39, 119, 0.76));
            --radius-xl: 20px;
            --radius-lg: 14px;
            --radius-md: 10px;
            --radius-sm: 8px;
            --shadow-xs: 0 2px 8px rgba(244, 114, 182, 0.06);
            --shadow-sm: 0 4px 16px rgba(244, 114, 182, 0.08);
            --shadow-md: 0 8px 30px rgba(244, 114, 182, 0.14);
            --shadow-lg: 0 16px 40px rgba(244, 114, 182, 0.2);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --spacing-section: 80px;
        }

        /* ============ Reset / Base ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }
        button,
        input {
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(244, 114, 182, 0.4);
            border-radius: 4px;
        }

        /* ============ 容器 ============ */
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
            margin: 0 auto;
        }

        /* ============ 按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50px;
            font-weight: 600;
            line-height: 1.2;
            transition: all 0.3s ease;
            cursor: pointer;
            border: 2px solid transparent;
            font-size: 0.95rem;
        }
        .btn-lg {
            padding: 15px 36px;
            font-size: 1rem;
        }
        .btn-primary {
            background: var(--gradient-main);
            color: #fff;
            padding: 13px 32px;
            box-shadow: var(--shadow-md);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            color: #fff;
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-outline {
            border: 2px solid rgba(255, 255, 255, 0.85);
            color: #fff;
            padding: 13px 32px;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: #fff;
            color: #fff;
        }
        .btn-outline:active {
            transform: scale(0.97);
        }
        .btn-ghost {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary-dark);
            padding: 13px 32px;
        }
        .btn-ghost:hover {
            background: var(--bg-soft);
            color: var(--primary-dark);
        }
        .btn-ghost:active {
            transform: scale(0.97);
        }
        .btn-light {
            background: #fff;
            color: var(--primary-dark);
            padding: 13px 32px;
            box-shadow: var(--shadow-sm);
        }
        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: var(--primary-dark);
        }

        /* ============ 导航 ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            transition: all 0.3s ease;
        }
        .top-bar {
            background: rgba(255, 248, 250, 0.92);
            transition: all 0.3s ease;
            border-bottom: 1px solid transparent;
        }
        .top-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 58px;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .logo i {
            font-size: 1.6rem;
            color: var(--primary);
        }
        .top-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .top-right .top-tel {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .top-right .top-tel i {
            color: var(--primary);
            margin-right: 4px;
        }
        .top-right .top-btn {
            background: var(--gradient-main);
            color: #fff;
            padding: 7px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all 0.3s;
            box-shadow: var(--shadow-xs);
        }
        .top-right .top-btn:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .nav-bar {
            background: rgba(255, 255, 255, 0.92);
            border-top: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }
        .nav-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: block;
            padding: 0 16px;
            line-height: 56px;
            color: var(--text-body);
            font-weight: 500;
            position: relative;
            font-size: 0.95rem;
        }
        .nav-links li a:hover {
            color: var(--primary);
        }
        .nav-links li a.active {
            color: var(--primary-dark);
            font-weight: 600;
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 0;
            height: 3px;
            border-radius: 3px;
            background: var(--gradient-main);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            background: var(--bg-soft);
            border: 1px solid var(--border-color);
            color: var(--text-body);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s;
        }
        .nav-search:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 0;
            font-size: 1.6rem;
            color: var(--text-strong);
            cursor: pointer;
            padding: 4px 8px;
            line-height: 1;
        }
        .site-header.scrolled .top-bar {
            height: 0;
            overflow: hidden;
            opacity: 0;
            border-bottom: 0;
        }
        .site-header.scrolled .nav-bar {
            box-shadow: var(--shadow-md);
        }

        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: -300px;
            width: 280px;
            height: 100vh;
            background: #fff;
            z-index: 1060;
            padding: 88px 24px 24px;
            box-shadow: var(--shadow-lg);
            transition: right 0.3s ease;
            flex-direction: column;
        }
        .mobile-menu.open {
            right: 0;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 0;
            font-size: 1rem;
            color: var(--text-body);
            font-weight: 500;
            border-bottom: 1px solid var(--bg-soft);
        }
        .mobile-menu a:hover {
            color: var(--primary);
        }
        .mobile-menu a.active {
            color: var(--primary-dark);
            font-weight: 700;
        }
        .mobile-close {
            position: absolute;
            top: 24px;
            right: 24px;
            background: none;
            border: 0;
            font-size: 1.4rem;
            color: var(--text-muted);
            cursor: pointer;
        }
        .menu-mask {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(43, 47, 54, 0.4);
            z-index: 1055;
        }
        .menu-mask.show {
            display: block;
        }

        /* ============ Hero ============ */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: 150px 0 80px;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-hero);
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.08fr 0.92fr;
            gap: 54px;
            align-items: center;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            padding: 7px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .hero h1 {
            font-size: 2.55rem;
            color: #fff;
            font-weight: 800;
            line-height: 1.25;
            margin: 22px 0 16px;
            letter-spacing: 0.02em;
        }
        .hero-desc {
            color: rgba(255, 255, 255, 0.92);
            font-size: 1rem;
            line-height: 1.8;
            max-width: 540px;
            margin-bottom: 30px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 34px;
        }
        .hero-stats {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .stat-item {
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-lg);
            padding: 14px 22px;
            backdrop-filter: blur(8px);
            text-align: center;
            min-width: 110px;
        }
        .stat-item strong {
            display: block;
            font-size: 1.3rem;
            color: #fff;
            font-weight: 800;
            line-height: 1.3;
        }
        .stat-item span {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.85);
        }

        /* 进度面板 */
        .progress-panel {
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.28);
            border-radius: var(--radius-xl);
            padding: 30px;
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-md);
        }
        .progress-panel>h3 {
            color: #fff;
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 20px;
            text-align: center;
        }
        .progress-ring-wrap {
            position: relative;
            width: 170px;
            height: 170px;
            margin: 0 auto 24px;
        }
        .progress-ring {
            width: 100%;
            height: 100%;
            transform: rotate(-90deg);
        }
        .progress-ring circle {
            fill: none;
            stroke-width: 10;
            stroke-linecap: round;
        }
        .progress-ring .ring-bg {
            stroke: rgba(255, 255, 255, 0.2);
        }
        .progress-ring .ring-fg {
            stroke: url(#grad);
            stroke-dasharray: 408.4;
            stroke-dashoffset: 89.85;
            transition: stroke-dashoffset 1s ease;
        }
        .ring-text {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: #fff;
        }
        .ring-text strong {
            font-size: 2.1rem;
            font-weight: 800;
            line-height: 1.1;
        }
        .ring-text span {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.85);
        }
        .tier-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 18px;
        }
        .tier-card {
            background: rgba(255, 255, 255, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-lg);
            padding: 12px 8px;
            text-align: center;
            color: #fff;
            transition: all 0.3s ease;
        }
        .tier-card:hover {
            background: rgba(255, 255, 255, 0.34);
            transform: translateY(-2px);
        }
        .tier-card.tier-hot {
            background: rgba(255, 255, 255, 0.32);
            border-color: #fff;
        }
        .tier-card .tier-badge {
            display: inline-block;
            background: var(--gradient-main);
            color: #fff;
            font-size: 0.68rem;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 20px;
            margin-bottom: 4px;
        }
        .tier-card .tier-name {
            display: block;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.85);
        }
        .tier-card .tier-price {
            display: block;
            font-size: 1.3rem;
            font-weight: 800;
            line-height: 1.3;
        }
        .tier-card .tier-desc {
            display: block;
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.4;
            margin-top: 2px;
        }
        .progress-panel .btn {
            width: 100%;
        }

        /* ============ 分类入口 ============ */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-head {
            text-align: center;
            max-width: 620px;
            margin: 0 auto 48px;
        }
        .section-head .section-tag {
            display: inline-block;
            background: var(--gradient-soft);
            color: var(--primary-dark);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 50px;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-strong);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 0.98rem;
        }
        .cat-card {
            display: block;
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.35s ease;
            height: 100%;
        }
        .cat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .cat-card img {
            width: 100%;
            height: 210px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .cat-card:hover img {
            transform: scale(1.04);
        }
        .cat-card .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(43, 47, 54, 0.72), transparent 70%);
        }
        .cat-card .cat-info {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 18px;
            color: #fff;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .cat-info .cat-name {
            font-weight: 700;
            font-size: 1rem;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }
        .cat-info .cat-count {
            font-size: 0.78rem;
            background: rgba(255, 255, 255, 0.28);
            padding: 4px 12px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }

        /* ============ 资源卡片 ============ */
        .video-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            transition: all 0.35s ease;
            height: 100%;
        }
        .video-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .video-card .card-thumb {
            position: relative;
            overflow: hidden;
        }
        .video-card .card-thumb img {
            width: 100%;
            height: 165px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .video-card:hover .card-thumb img {
            transform: scale(1.05);
        }
        .video-card .thumb-overlay {
            position: absolute;
            inset: 0;
            background: rgba(43, 47, 54, 0.34);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .video-card:hover .thumb-overlay {
            opacity: 1;
        }
        .video-card .thumb-overlay i {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: var(--shadow-sm);
        }
        .video-card .card-body {
            padding: 14px 16px 16px;
        }
        .video-card .card-title {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-strong);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-bottom: 8px;
        }
        .video-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
        }
        .video-card .card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .video-card .card-tags span {
            background: var(--bg-soft);
            color: var(--primary-dark);
            font-size: 0.72rem;
            font-weight: 500;
            padding: 2px 10px;
            border-radius: 20px;
        }
        .video-card .card-score {
            font-size: 0.86rem;
            font-weight: 700;
            color: var(--secondary);
            white-space: nowrap;
        }

        /* ============ 观影指南 ============ */
        .guide-section {
            background: var(--bg-white);
        }
        .guide-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 38px 24px 30px;
            text-align: center;
            transition: all 0.35s ease;
            position: relative;
            box-shadow: var(--shadow-xs);
        }
        .guide-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .guide-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 24px;
            right: 24px;
            height: 3px;
            border-radius: 3px;
            background: var(--gradient-main);
            opacity: 0;
            transition: opacity 0.3s;
        }
        .guide-card:hover::before {
            opacity: 1;
        }
        .guide-num {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: var(--gradient-main);
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: var(--shadow-sm);
        }
        .guide-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
        }
        .guide-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* ============ 资讯区 ============ */
        .news-section {
            background: var(--bg-body);
        }
        .news-list .news-item {
            display: flex;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-color);
            align-items: flex-start;
            transition: all 0.3s;
        }
        .news-list .news-item:last-child {
            border-bottom: 0;
        }
        .news-list .news-item:hover .news-title {
            color: var(--primary);
        }
        .news-date {
            flex-shrink: 0;
            background: var(--gradient-soft);
            color: var(--primary-dark);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 20px;
            width: max-content;
        }
        .news-content .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 4px;
            transition: color 0.3s;
        }
        .news-content .news-desc {
            font-size: 0.86rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* 侧栏 */
        .sidebar-box {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-xs);
        }
        .sidebar-box h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--bg-soft);
            position: relative;
        }
        .sidebar-box h3::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 48px;
            height: 2px;
            background: var(--gradient-main);
        }
        .hot-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border-color);
        }
        .hot-item:last-child {
            border-bottom: 0;
        }
        .hot-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-soft);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .hot-item:first-child .hot-num {
            background: var(--gradient-main);
            color: #fff;
        }
        .hot-item:nth-child(2) .hot-num {
            background: #FFE4E6;
        }
        .hot-item:nth-child(3) .hot-num {
            background: #FCE7F3;
        }
        .hot-item:hover .hot-name {
            color: var(--primary);
        }
        .hot-name {
            font-size: 0.9rem;
            color: var(--text-body);
            font-weight: 500;
            flex: 1;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .hot-count {
            font-size: 0.78rem;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            background: var(--bg-soft);
            color: var(--text-body);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.82rem;
            transition: all 0.3s;
            border: 1px solid transparent;
        }
        .tag-cloud a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        .subscribe-form {
            display: flex;
            gap: 8px;
            margin-top: 14px;
        }
        .subscribe-form input {
            flex: 1;
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 11px 18px;
            font-size: 0.88rem;
            outline: none;
            transition: all 0.3s;
            background: var(--bg-body);
            color: var(--text-body);
        }
        .subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(244, 114, 182, 0.16);
            background: #fff;
        }
        .subscribe-form .btn {
            padding: 11px 20px;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        /* ============ 下载引导 ============ */
        .download-banner {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            box-shadow: var(--shadow-md);
        }
        .download-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-dark);
        }
        .download-banner .down-content {
            position: relative;
            z-index: 2;
            padding: 72px 40px;
            text-align: center;
            color: #fff;
        }
        .download-banner h2 {
            font-size: 1.9rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .download-banner p {
            color: rgba(255, 255, 255, 0.9);
            max-width: 560px;
            margin: 0 auto 32px;
            font-size: 1rem;
            line-height: 1.7;
        }
        .download-banner .btn-light {
            background: #fff;
            color: var(--primary-dark);
        }
        .download-banner .down-icons {
            display: flex;
            justify-content: center;
            gap: 42px;
            margin-bottom: 28px;
        }
        .down-icons .icon-item {
            text-align: center;
            color: rgba(255, 255, 255, 0.9);
        }
        .down-icons .icon-item i {
            font-size: 2rem;
            display: block;
            margin-bottom: 8px;
            background: rgba(255, 255, 255, 0.15);
            width: 64px;
            height: 64px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .down-icons .icon-item span {
            font-size: 0.85rem;
        }

        /* ============ FAQ ============ */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-wrap .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow-xs);
        }
        .faq-wrap .accordion-button {
            background: var(--bg-white);
            color: var(--text-strong);
            font-weight: 600;
            padding: 18px 24px;
            font-size: 0.98rem;
            border: none;
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            transition: all 0.3s;
            box-shadow: none;
        }
        .faq-wrap .accordion-button:hover {
            background: var(--bg-soft);
        }
        .faq-wrap .accordion-button:not(.collapsed) {
            background: var(--bg-soft);
            color: var(--primary-dark);
            box-shadow: inset 3px 0 0 var(--primary);
        }
        .faq-wrap .accordion-button::after {
            content: '\F282';
            font-family: 'bootstrap-icons';
            background: none;
            font-size: 1.1rem;
            color: var(--primary);
            width: auto;
            height: auto;
            transition: transform 0.3s;
        }
        .faq-wrap .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }
        .faq-wrap .accordion-body {
            padding: 8px 24px 22px;
            color: var(--text-muted);
            line-height: 1.7;
            font-size: 0.9rem;
            border-top: 1px dashed var(--border-color);
            margin-top: 4px;
        }

        /* ============ CTA ============ */
        .cta-banner {
            background: var(--gradient-main);
            border-radius: var(--radius-xl);
            padding: 64px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            top: -100px;
            right: -60px;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            bottom: -80px;
            left: -40px;
        }
        .cta-banner h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            color: rgba(255, 255, 255, 0.92);
            max-width: 540px;
            margin: 0 auto 30px;
            position: relative;
            z-index: 1;
            font-size: 1rem;
        }
        .cta-banner .btn-light {
            padding: 15px 40px;
            font-size: 1rem;
            font-weight: 600;
            position: relative;
            z-index: 1;
            border-radius: 50px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #2B2430;
            color: #C4B5C5;
            padding: 70px 0 0;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 44px;
        }
        .footer-brand .footer-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .footer-brand .footer-logo i {
            color: var(--primary);
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: #A39BA8;
            line-height: 1.7;
            margin-bottom: 18px;
            max-width: 320px;
        }
        .footer-socials {
            display: flex;
            gap: 10px;
        }
        .footer-socials a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #C4B5C5;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: all 0.3s;
        }
        .footer-socials a:hover {
            background: var(--primary);
            color: #fff;
        }
        .footer-links h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-links ul li {
            margin-bottom: 10px;
        }
        .footer-links ul li a {
            color: #A39BA8;
            font-size: 0.88rem;
            transition: all 0.3s;
        }
        .footer-links ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-contact h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-contact p {
            font-size: 0.88rem;
            color: #A39BA8;
            margin-bottom: 10px;
        }
        .footer-contact p i {
            color: var(--primary);
            margin-right: 6px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            font-size: 0.83rem;
            color: #8B8290;
        }

        /* ============ 返回顶部 ============ */
        .back-to-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--gradient-main);
            color: #fff;
            border: none;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: all 0.3s ease;
            z-index: 990;
            box-shadow: var(--shadow-md);
        }
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-to-top:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1200px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero-grid {
                gap: 40px;
            }
        }
        @media (max-width: 991px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-search {
                display: none;
            }
            .mobile-menu {
                display: flex;
            }
            .hero {
                padding: 130px 0 60px;
                min-height: auto;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-desc {
                max-width: 100%;
            }
            .guide-cards {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .download-banner .down-content {
                padding: 56px 24px;
            }
        }
        @media (max-width: 767px) {
            :root {
                --spacing-section: 56px;
            }
            .hero h1 {
                font-size: 1.85rem;
            }
            .hero-stats {
                flex-direction: row;
                overflow-x: auto;
                padding-bottom: 4px;
            }
            .stat-item {
                min-width: 100px;
                padding: 12px 16px;
            }
            .section-head h2 {
                font-size: 1.6rem;
            }
            .guide-cards {
                grid-template-columns: 1fr;
            }
            .tier-row {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .download-banner .down-icons {
                gap: 20px;
                flex-wrap: wrap;
            }
            .download-banner .down-content {
                padding: 44px 20px;
            }
            .cta-banner {
                padding: 48px 20px;
            }
            .cta-banner h2 {
                font-size: 1.5rem;
            }
            .top-right .top-tel {
                display: none;
            }
        }
        @media (max-width: 575px) {
            .hero {
                padding: 110px 0 48px;
            }
            .hero h1 {
                font-size: 1.55rem;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .progress-panel {
                padding: 24px 16px;
            }
            .progress-ring-wrap {
                width: 150px;
                height: 150px;
            }
            .back-to-top {
                bottom: 20px;
                right: 20px;
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
            .news-list .news-item {
                flex-direction: column;
                gap: 8px;
            }
        }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root {
    --primary: #F472B6;
    --primary-dark: #DB2777;
    --secondary: #C084FC;
    --accent: #F9A8D4;
    --bg-body: #FFF8FA;
    --bg-white: #FFFFFF;
    --bg-soft: #FDF2F5;
    --text-strong: #2B2F36;
    --text-body: #3E434A;
    --text-muted: #6B7280;
    --border-color: rgba(244, 114, 182, 0.15);
    --gradient-main: linear-gradient(135deg, #FF8FAB, #E879F9);
    --gradient-soft: linear-gradient(135deg, rgba(255, 143, 171, 0.12), rgba(232, 121, 249, 0.12));
    --gradient-hero: linear-gradient(135deg, rgba(255, 143, 171, 0.92), rgba(232, 121, 249, 0.85));
    --gradient-dark: linear-gradient(135deg, rgba(43, 47, 54, 0.88), rgba(219, 39, 119, 0.76));
    --radius-xl: 20px;
    --radius-lg: 14px;
    --radius-md: 10px;
    --radius-sm: 8px;
    --shadow-xs: 0 2px 8px rgba(244, 114, 182, 0.06);
    --shadow-sm: 0 4px 16px rgba(244, 114, 182, 0.08);
    --shadow-md: 0 8px 30px rgba(244, 114, 182, 0.14);
    --shadow-lg: 0 16px 40px rgba(244, 114, 182, 0.2);
    --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --spacing-section: 80px;
}
/* ============ 基础 Reset ============ */
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-main);
    background: var(--bg-body);
    color: var(--text-body);
    line-height: 1.7;
    overflow-x: hidden;
    padding-top: 114px;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
button, input { font-family: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(244, 114, 182, 0.4);
    border-radius: 4px;
}
ul, ol { list-style: none; margin: 0; padding: 0; }
h1,h2,h3,h4,h5,h6 { font-weight: 800; color: var(--text-strong); line-height: 1.3; margin-bottom: 12px; }
/* ============ 容器 ============ */
.container { max-width: 1200px; padding-left: 20px; padding-right: 20px; margin: 0 auto; }
/* ============ 按钮 ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50px;
    font-weight: 600;
    line-height: 1.2;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 0.95rem;
}
.btn-lg { padding: 15px 36px; font-size: 1rem; }
.btn-primary {
    background: var(--gradient-main);
    color: #fff;
    padding: 13px 32px;
    box-shadow: var(--shadow-md);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); color: #fff; }
.btn-primary:active { transform: scale(0.97); }
.btn-outline {
    border: 2px solid rgba(255, 255, 255, 0.85);
    color: #fff;
    padding: 13px 32px;
}
.btn-outline:hover { background: rgba(255, 255, 255, 0.16); border-color: #fff; color: #fff; }
.btn-outline:active { transform: scale(0.97); }
.btn-ghost {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary-dark);
    padding: 13px 32px;
}
.btn-ghost:hover { background: var(--bg-soft); color: var(--primary-dark); }
.btn-ghost:active { transform: scale(0.97); }
.btn-light {
    background: #fff;
    color: var(--primary-dark);
    padding: 13px 32px;
    box-shadow: var(--shadow-sm);
}
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); color: var(--primary-dark); }
.btn-light:active { transform: scale(0.97); }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
/* ============ 导航 ============ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1050;
    transition: all 0.3s ease;
    box-shadow: 0 2px 20px rgba(0,0,0,0.04);
}
.top-bar {
    background: #fff;
    border-bottom: 1px solid var(--border-color);
    max-height: 58px;
    overflow: hidden;
    transition: all 0.3s ease;
}
.top-bar .container { display: flex; align-items: center; justify-content: space-between; height: 58px; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--primary-dark); display: flex; align-items: center; gap: 6px; }
.logo i { font-size: 1.6rem; color: var(--primary); }
.top-right { display: flex; align-items: center; gap: 14px; }
.top-tel { font-size: 0.875rem; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.top-tel i { color: var(--primary); font-size: 1rem; }
.top-btn {
    background: var(--gradient-main);
    color: #fff;
    padding: 7px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: var(--shadow-xs);
}
.top-btn:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); color: #fff; }
.nav-bar { background: rgba(255, 255, 255, 0.96); border-bottom: 1px solid var(--border-color); transition: all 0.3s ease; }
.nav-bar .container { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
    padding: 8px 18px;
    border-radius: 50px;
    font-weight: 500;
    color: var(--text-body);
    font-size: 0.92rem;
    transition: all 0.3s;
    position: relative;
}
.nav-links a:hover { color: var(--primary-dark); background: var(--bg-soft); }
.nav-links a.active { color: #fff; background: var(--gradient-main); box-shadow: var(--shadow-sm); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.nav-search {
    width: 38px; height: 38px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: var(--bg-soft);
    color: var(--primary-dark);
    font-size: 1.1rem;
    transition: all 0.3s;
}
.nav-search:hover { background: var(--accent); color: var(--primary-dark); }
.nav-toggle {
    display: none;
    width: 38px; height: 38px;
    border: none;
    background: var(--bg-soft);
    border-radius: 50%;
    color: var(--primary-dark);
    font-size: 1.2rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}
.nav-toggle:hover { background: var(--accent); }
.site-header.scrolled { box-shadow: var(--shadow-md); }
.site-header.scrolled .top-bar { max-height: 0; border-bottom: none; }
/* ============ 分类页页头 ============ */
.category-hero {
    position: relative;
    padding: 60px 0 100px;
    background:
        linear-gradient(135deg, rgba(244, 114, 182, 0.9), rgba(192, 132, 252, 0.82)),
        url('/assets/images/backpic/back-1.jpg');
    background-size: cover;
    background-position: center;
    color: #fff;
}
.category-hero::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 50px;
    background: linear-gradient(to bottom, transparent, var(--bg-body));
    pointer-events: none;
}
.category-hero .breadcrumb-nav {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 20px;
}
.category-hero .breadcrumb-nav a { color: rgba(255, 255, 255, 0.85); }
.category-hero .breadcrumb-nav a:hover { color: #fff; text-decoration: underline; }
.category-hero .breadcrumb-nav .divider { margin: 0 10px; opacity: 0.6; }
.category-hero h1 {
    font-size: 2.4rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 10px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}
.category-hero .hero-desc {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.92);
    max-width: 640px;
    margin-bottom: 0;
}
/* ============ 秒杀闪购条 ============ */
.flash-sale {
    position: relative;
    z-index: 2;
    margin-top: 32px;
    background: #fff;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0;
}
.flash-sale-left {
    padding: 28px 30px;
    background: var(--gradient-soft);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
}
.flash-sale-left .sale-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--gradient-main);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 50px;
    align-self: flex-start;
    letter-spacing: 1px;
}
.flash-sale-left .sale-title { font-size: 1.15rem; font-weight: 800; color: var(--text-strong); }
.flash-sale-left .sale-subtitle { font-size: 0.85rem; color: var(--text-muted); }
.countdown { display: flex; align-items: center; gap: 6px; margin-top: 4px; }
.countdown-label { font-size: 0.8rem; color: var(--text-muted); margin-right: 4px; }
.countdown-box {
    background: var(--text-strong);
    color: #fff;
    font-size: 1.2rem;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 8px;
    min-width: 38px;
    text-align: center;
    font-variant-numeric: tabular-nums;
}
.countdown .colon { font-size: 1.1rem; font-weight: 800; color: var(--primary); }
.flash-sale-mid {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 18px;
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
}
.flash-sale-mid .sale-poster {
    width: 160px;
    height: 105px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
    position: relative;
    box-shadow: var(--shadow-sm);
}
.flash-sale-mid .sale-poster img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.flash-sale-mid .sale-poster::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(244,114,182,0.15), rgba(192,132,252,0.15));
}
.flash-sale-mid .sale-info .sale-name { font-size: 1.05rem; font-weight: 800; color: var(--text-strong); margin-bottom: 4px; }
.flash-sale-mid .sale-info .sale-desc { font-size: 0.82rem; color: var(--text-muted); }
.flash-sale-right {
    padding: 28px 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 10px;
}
.flash-sale-right .sale-price { display: flex; align-items: baseline; gap: 8px; }
.flash-sale-right .sale-price .now { font-size: 1.8rem; font-weight: 800; color: var(--primary-dark); }
.flash-sale-right .sale-price .now small { font-size: 1rem; }
.flash-sale-right .sale-price .old { font-size: 0.9rem; color: var(--text-muted); text-decoration: line-through; }
.flash-sale-right .sale-extra { font-size: 0.8rem; color: var(--primary); font-weight: 600; }
/* ============ 板块标题 ============ */
.section-title {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 10px;
    color: var(--text-strong);
}
.section-subtitle {
    text-align: center;
    font-size: 0.95rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
}
/* ============ 卖点区 ============ */
.category-features { padding: var(--spacing-section) 0 40px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 30px 24px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: -40px;
    right: -40px;
    width: 90px;
    height: 90px;
    background: var(--gradient-soft);
    border-radius: 50%;
    transition: all 0.4s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(244, 114, 182, 0.3); }
.feature-card:hover::before { transform: scale(1.4); }
.feature-icon {
    width: 48px; height: 48px;
    border-radius: 14px;
    background: var(--gradient-soft);
    color: var(--primary-dark);
    font-size: 1.3rem;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 16px;
}
.feature-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.feature-card p { font-size: 0.85rem; color: var(--text-muted); margin: 0; }
.feature-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    background: var(--gradient-main);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 50px;
    z-index: 1;
}
/* ============ 视频库主区 ============ */
.video-library { padding: 40px 0 60px; }
.video-library .main-col { padding-right: 26px; }
.filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding: 14px 18px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    box-shadow: var(--shadow-xs);
}
.filter-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-tabs .tab {
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.82rem;
    border: none;
    background: var(--bg-soft);
    color: var(--text-body);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}
.filter-tabs .tab:hover { background: var(--accent); color: var(--primary-dark); }
.filter-tabs .tab.active { background: var(--gradient-main); color: #fff; box-shadow: var(--shadow-sm); }
.filter-sort {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.82rem;
    color: var(--text-muted);
}
.filter-sort select {
    border: 1px solid var(--border-color);
    border-radius: 50px;
    padding: 5px 14px;
    font-size: 0.82rem;
    background: var(--bg-body);
    color: var(--text-body);
    cursor: pointer;
}
.filter-sort select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(244, 114, 182, 0.2);
}
/* 视频卡片 */
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.video-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.35s;
    box-shadow: var(--shadow-xs);
}
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(244, 114, 182, 0.28); }
.video-card .card-thumb {
    position: relative;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
    aspect-ratio: 16 / 9;
}
.video-card .card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.45s; }
.video-card:hover .card-thumb img { transform: scale(1.06); }
.video-card .card-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(43, 47, 54, 0);
    transition: all 0.3s;
}
.video-card:hover .card-thumb::after { background: rgba(43, 47, 54, 0.15); }
.video-card .play-mask {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    opacity: 0;
    transition: all 0.3s;
}
.video-card:hover .play-mask { opacity: 1; }
.video-card .play-mask i {
    width: 48px; height: 48px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-md);
}
.video-card .card-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 2;
    background: var(--gradient-main);
    color: #fff;
    font-size: 0.72rem;
    padding: 3px 10px;
    border-radius: 50px;
    font-weight: 600;
}
.video-card .card-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    z-index: 2;
    background: rgba(43, 47, 54, 0.75);
    color: #fff;
    font-size: 0.72rem;
    padding: 2px 8px;
    border-radius: 6px;
}
.video-card .card-body { padding: 16px 18px 18px; }
.video-card .card-body h3 { font-size: 0.98rem; font-weight: 700; margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.video-card .card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.video-card .card-tags span {
    font-size: 0.72rem;
    background: var(--bg-soft);
    color: var(--primary-dark);
    padding: 2px 10px;
    border-radius: 50px;
    font-weight: 500;
}
.video-card .card-meta { display: flex; align-items: center; justify-content: space-between; font-size: 0.78rem; color: var(--text-muted); }
.video-card .card-meta i { color: var(--primary); margin-right: 3px; }
.load-more { text-align: center; margin-top: 36px; }
/* 侧栏 */
.sidebar { padding-left: 8px; }
.side-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 26px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-xs);
}
.side-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-strong);
    padding-left: 12px;
    border-left: 4px solid var(--primary);
    margin-bottom: 18px;
}
.hot-list { display: flex; flex-direction: column; gap: 0; }
.hot-list li {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px dashed rgba(244, 114, 182, 0.12);
    transition: all 0.3s;
}
.hot-list li:last-child { border-bottom: none; }
.hot-list li:hover { padding-left: 6px; }
.hot-list .hot-rank {
    width: 24px;
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--text-muted);
    text-align: center;
}
.hot-list li:nth-child(1) .hot-rank { color: #FF6B6B; }
.hot-list li:nth-child(2) .hot-rank { color: #FF9F43; }
.hot-list li:nth-child(3) .hot-rank { color: #FECA57; }
.hot-list .hot-name { flex: 1; font-size: 0.88rem; color: var(--text-body); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hot-list .hot-name:hover { color: var(--primary-dark); }
.hot-list .hot-num { font-size: 0.78rem; color: var(--text-muted); }
/* 标签云 */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud .tag {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 50px;
    background: var(--bg-soft);
    color: var(--text-body);
    font-size: 0.8rem;
    border: 1px solid transparent;
    transition: all 0.3s;
}
.tag-cloud .tag:hover {
    background: var(--gradient-main);
    color: #fff;
    border-color: transparent;
    box-shadow: var(--shadow-sm);
}
/* 订阅表单 */
.subscribe-form .input-group { display: flex; gap: 8px; }
.subscribe-form input {
    flex: 1;
    border: 1px solid var(--border-color);
    border-radius: 50px;
    padding: 10px 18px;
    font-size: 0.85rem;
    background: var(--bg-body);
    color: var(--text-body);
}
.subscribe-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(244, 114, 182, 0.2);
}
.subscribe-form input::placeholder { color: var(--text-muted); }
.subscribe-form .btn { white-space: nowrap; padding: 10px 20px; }
.subscribe-note { font-size: 0.75rem; color: var(--text-muted); margin-top: 10px; }
/* ============ 场景区 ============ */
.scenario-section { padding: var(--spacing-section) 0; background: var(--bg-white); }
.scenario-row {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 40px;
}
.scenario-row.reverse { flex-direction: row-reverse; }
.scenario-row:last-child { margin-bottom: 0; }
.scenario-img {
    flex: 1;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    position: relative;
    aspect-ratio: 16/10;
}
.scenario-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.scenario-img:hover img { transform: scale(1.04); }
.scenario-img .scenario-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: var(--gradient-main);
    color: #fff;
    font-size: 0.75rem;
    padding: 4px 14px;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}
.scenario-content { flex: 1; }
.scenario-content h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 10px; }
.scenario-content p { font-size: 0.92rem; color: var(--text-muted); margin-bottom: 14px; }
.scenario-content .scenario-points { display: flex; flex-direction: column; gap: 8px; }
.scenario-content .scenario-points li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.88rem;
    color: var(--text-body);
}
.scenario-content .scenario-points i { color: var(--primary); margin-top: 4px; }
/* ============ 流程区 ============ */
.steps-section { padding: var(--spacing-section) 0; background: var(--bg-body); }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.step-card {
    text-align: center;
    padding: 36px 24px;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    position: relative;
    transition: all 0.3s;
    box-shadow: var(--shadow-xs);
}
.step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.step-num {
    width: 54px; height: 54px;
    border-radius: 50%;
    background: var(--gradient-main);
    color: #fff;
    font-size: 1.3rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    box-shadow: var(--shadow-md);
}
.step-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.step-card p { font-size: 0.86rem; color: var(--text-muted); margin: 0; }
/* ============ FAQ ============ */
.faq-section { padding: var(--spacing-section) 0; background: var(--bg-white); }
.faq-wrap { max-width: 780px; margin: 0 auto; }
.faq-item {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.3s;
}
.faq-item:hover { border-color: rgba(244, 114, 182, 0.3); box-shadow: var(--shadow-sm); }
.faq-item.faq-open { border-color: rgba(244, 114, 182, 0.35); box-shadow: var(--shadow-sm); }
.faq-question {
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-strong);
    border-radius: var(--radius-lg);
    transition: all 0.3s;
    border-left: 4px solid transparent;
}
.faq-question:hover { color: var(--primary-dark); }
.faq-item.faq-open .faq-question {
    background: var(--bg-soft);
    border-left-color: var(--primary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.faq-question i {
    font-size: 1rem;
    color: var(--text-muted);
    transition: transform 0.3s;
}
.faq-item.faq-open .faq-question i { transform: rotate(180deg); color: var(--primary); }
.faq-answer { padding: 0 24px 20px; font-size: 0.88rem; color: var(--text-muted); display: none; }
.faq-item.faq-open .faq-answer { display: block; }
/* ============ CTA 区 ============ */
.cta-section { padding: var(--spacing-section) 0; }
.cta-box {
    background: var(--gradient-main);
    border-radius: var(--radius-xl);
    padding: 60px 40px;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.cta-box::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
}
.cta-box::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -40px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
}
.cta-box h2 { color: #fff; font-size: 1.8rem; text-shadow: 0 2px 12px rgba(0,0,0,0.08); }
.cta-box p { color: rgba(255,255,255,0.92); font-size: 0.95rem; margin-bottom: 24px; }
.cta-box .btn-light { border: none; }
.cta-box .btn-light:hover { background: #f9f9f9; color: var(--primary-dark); }
.cta-box .btn-outline { margin-left: 8px; }
/* ============ 页脚 ============ */
.site-footer {
    background: #2B2430;
    color: rgba(255,255,255,0.75);
    padding: 60px 0 0;
    font-size: 0.88rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
}
.footer-logo i { color: var(--primary); }
.footer-brand p { font-size: 0.85rem; line-height: 1.8; margin-bottom: 16px; opacity: 0.75; }
.footer-socials { display: flex; gap: 10px; }
.footer-socials a {
    width: 34px; height: 34px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    transition: all 0.3s;
}
.footer-socials a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.footer-links h4, .footer-contact h4 {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 16px;
}
.footer-links ul li { margin-bottom: 8px; }
.footer-links ul li a { color: rgba(255,255,255,0.7); transition: all 0.3s; }
.footer-links ul li a:hover { color: var(--primary); padding-left: 4px; }
.footer-contact p { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; color: rgba(255,255,255,0.7); }
.footer-contact p i { color: var(--primary); }
.footer-bottom {
    text-align: center;
    padding: 18px 0 20px;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.5);
    border-top: 1px solid rgba(255,255,255,0.05);
}
/* ============ 返回顶部 ============ */
.back-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 46px; height: 46px;
    border-radius: 50%;
    background: var(--gradient-main);
    color: #fff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: var(--shadow-md);
    z-index: 999;
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    transition: all 0.3s;
    cursor: pointer;
}
.back-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-top:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.back-top:active { transform: scale(0.94); }
/* ============ 结构化数据 JSON-LD ============ */
/*（见 head 中） */
/* ============ 响应式 ============ */
@media (max-width: 1199px) {
    .flash-sale { grid-template-columns: 1fr 1fr; }
    .flash-sale-mid { border-top: 1px solid var(--border-color); grid-column: 1 / -1; }
    .flash-sale-right { border-left: none; }
}
@media (max-width: 991px) {
    .nav-toggle { display: inline-flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px 20px;
        box-shadow: var(--shadow-lg);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        gap: 4px;
    }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 12px 18px; font-size: 1rem; }
    .top-tel { display: none; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .video-grid { grid-template-columns: repeat(2, 1fr); }
    .video-library .main-col { padding-right: 0; margin-bottom: 40px; }
    .sidebar { padding-left: 0; }
    .steps-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .scenario-row, .scenario-row.reverse { flex-direction: column; gap: 24px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .body { padding-top: 114px; }
}
@media (max-width: 767px) {
    :root { --spacing-section: 48px; }
    .category-hero { padding: 50px 0 90px; }
    .category-hero h1 { font-size: 1.8rem; }
    .flash-sale { grid-template-columns: 1fr; }
    .flash-sale-mid {
        grid-column: 1 / -1;
        border-left: none;
        border-right: none;
        border-top: 1px solid var(--border-color);
        border-bottom: 1px solid var(--border-color);
    }
    .flash-sale-right { border-left: none; }
    .feature-grid { grid-template-columns: 1fr; }
    .video-grid { grid-template-columns: 1fr; }
    .filter-bar { flex-direction: column; align-items: flex-start; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .cta-box { padding: 40px 24px; }
    .cta-box h2 { font-size: 1.4rem; }
    .btn-lg { padding: 13px 28px; }
    .back-top { bottom: 18px; right: 18px; width: 40px; height: 40px; }
}

/* 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}