/* roulang page: index */
:root {
            --primary: #FF6B4A;
            --pink: #F43F8E;
            --purple: #8B5CF6;
            --accent: #2AD4C6;
            --gradient: linear-gradient(120deg, #FF6B4A 0%, #F43F8E 55%, #8B5CF6 100%);
            --bg-deep: #0B0D12;
            --bg-card: #141822;
            --bg-elevated: #1C2130;
            --text-main: #F4F6FB;
            --text-sub: #A7B0C2;
            --text-quiet: #6B7284;
            --border: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.06);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 30px 60px rgba(0, 0, 0, 0.45);
            --transition: 0.16s ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding: 96px 0;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            background: var(--gradient);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--text-main);
        }
        .section-desc {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-sub);
            max-width: 720px;
        }

        /* 按钮 */
        .btn-gradient {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            background: var(--gradient);
            color: #fff;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 8px 24px rgba(244, 63, 142, 0.22);
        }
        .btn-gradient:hover {
            transform: translateY(-2px);
            filter: brightness(1.06);
            box-shadow: 0 14px 36px rgba(244, 63, 142, 0.35);
            color: #fff;
        }
        .btn-gradient:focus {
            outline: 2px solid rgba(255, 107, 74, 0.5);
            outline-offset: 2px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            background: transparent;
            color: var(--text-main);
            font-weight: 600;
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all var(--transition);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--primary);
            color: var(--text-main);
            transform: translateY(-2px);
        }
        .btn-outline:focus {
            outline: 2px solid rgba(255, 107, 74, 0.5);
            outline-offset: 2px;
        }
        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            background: #fff;
            color: #111;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
        }
        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
            color: #111;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 13, 18, 0.82);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-header .navbar {
            padding: 14px 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.02em;
        }
        .navbar-brand:hover {
            color: var(--text-main);
        }
        .brand-logo {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 16px rgba(244, 63, 142, 0.3);
        }
        .navbar .nav-link {
            color: var(--text-sub);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 18px !important;
            border-radius: 8px;
            transition: all 0.2s;
        }
        .navbar .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
        }
        .navbar .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-actions .btn-gradient {
            padding: 9px 22px;
            font-size: 14px;
        }
        .nav-actions .btn-outline {
            padding: 9px 22px;
            font-size: 14px;
        }
        .navbar-toggler {
            border: none;
            padding: 6px;
            width: 44px;
            height: 44px;
            background: transparent;
            border-radius: 10px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid rgba(255, 107, 74, 0.4);
        }
        .toggler-bar {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-main);
            margin: 5px auto;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(2) {
            opacity: 0;
        }
        .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Hero */
        .hero {
            position: relative;
            padding: 200px 0 140px;
            min-height: 100vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, #0B0D12 0%, rgba(11, 13, 18, 0.8) 55%, #0B0D12 100%);
        }
        .hero-glow {
            position: absolute;
            top: -120px;
            right: -80px;
            width: 650px;
            height: 650px;
            background: radial-gradient(circle, rgba(255, 107, 74, 0.18) 0%, rgba(139, 92, 246, 0.06) 55%, transparent 70%);
            border-radius: 50%;
            z-index: 1;
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }
        .hero h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 24px;
            color: var(--text-main);
        }
        .hero h1 .highlight {
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-sub {
            font-size: 18px;
            line-height: 1.75;
            color: var(--text-sub);
            max-width: 680px;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 48px;
        }
        .hero-data {
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
            margin-bottom: 40px;
        }
        .hero-data-item {
            border-left: 3px solid transparent;
            border-image: var(--gradient);
            border-image-slice: 1;
            padding-left: 16px;
        }
        .hero-data-item .num {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
        }
        .hero-data-item .label {
            font-size: 13px;
            color: var(--text-sub);
            letter-spacing: 0.05em;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .hero-tags .tag {
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-sub);
            transition: all 0.2s;
        }
        .hero-tags .tag:hover {
            border-color: var(--primary);
            color: var(--text-main);
        }

        /* 倒计时条 */
        .countdown-section {
            padding: 24px 0;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-light);
        }
        .countdown-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
        }
        .countdown-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .countdown-label .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            animation: pulse 1.5s infinite;
        }
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.75);
            }
        }
        .countdown-timer {
            display: flex;
            gap: 6px;
            align-items: center;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-main);
        }
        .countdown-timer .time-box {
            background: var(--bg-elevated);
            border-radius: 8px;
            padding: 6px 12px;
            min-width: 44px;
            text-align: center;
        }
        .countdown-timer .time-sep {
            color: var(--text-quiet);
        }
        .countdown-cta {
            padding: 8px 20px;
            font-size: 14px;
        }

        /* 痛点区 */
        .pain-section {
            padding: 96px 0;
            position: relative;
        }
        .pain-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px;
            height: 100%;
            position: relative;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            overflow: hidden;
        }
        .pain-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }
        .pain-card:hover::before {
            transform: scaleX(1);
        }
        .pain-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 107, 74, 0.25);
            box-shadow: var(--shadow-hover);
        }
        .pain-card .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(255, 107, 74, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .pain-card .pain-icon svg {
            width: 24px;
            height: 24px;
            stroke: var(--primary);
        }
        .pain-card .pain-num {
            position: absolute;
            top: 24px;
            right: 28px;
            font-size: 14px;
            font-weight: 700;
            color: var(--text-quiet);
            letter-spacing: 0.05em;
        }
        .pain-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .pain-card p {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-sub);
            margin-bottom: 0;
        }

        /* 解决方案区 */
        .solution-section {
            padding: 96px 0;
            background: linear-gradient(180deg, var(--bg-deep) 0%, rgba(20, 24, 34, 0.5) 50%, var(--bg-deep) 100%);
        }
        .solution-sticky {
            position: sticky;
            top: 120px;
        }
        .solution-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-top: 28px;
            border: 1px solid transparent;
            background: var(--gradient);
            padding: 2px;
        }
        .solution-image img {
            width: 100%;
            border-radius: calc(var(--radius-lg) - 2px);
            display: block;
        }
        .capability-list {
            display: flex;
            flex-direction: column;
        }
        .capability-item {
            padding: 32px;
            border-radius: var(--radius-md);
            border-left: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            transition: all 0.2s;
            position: relative;
        }
        .capability-item:last-child {
            border-bottom: none;
        }
        .capability-item:hover {
            background: rgba(255, 255, 255, 0.03);
            border-left-color: var(--primary);
        }
        .capability-item .cap-num {
            font-size: 14px;
            font-weight: 800;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 0.08em;
            margin-bottom: 8px;
        }
        .capability-item h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .capability-item p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .capability-divider {
            height: 1px;
            background: var(--border-light);
            margin: 0 32px;
        }

        /* 成果区 */
        .results-section {
            padding: 96px 0;
        }
        .results-note {
            text-align: center;
            color: var(--text-sub);
            font-size: 14px;
            letter-spacing: 0.04em;
            margin-bottom: 48px;
        }
        .result-badge {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 36px 24px;
            text-align: center;
            height: 100%;
            border: 1px solid var(--border-light);
            box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
            transition: all var(--transition);
        }
        .result-badge:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 107, 74, 0.2);
            box-shadow: var(--shadow-card);
        }
        .result-badge .num {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.2;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 8px;
        }
        .result-badge .underline {
            width: 32px;
            height: 3px;
            background: var(--gradient);
            border-radius: 2px;
            margin: 0 auto 12px;
        }
        .result-badge .label {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.05em;
        }
        .compare-bar {
            display: flex;
            flex-wrap: wrap;
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-top: 40px;
            border: 1px solid var(--border-light);
        }
        .compare-before,
        .compare-after {
            flex: 1;
            min-width: 280px;
            padding: 32px 36px;
        }
        .compare-before {
            background: #1A1E2A;
            color: var(--text-sub);
        }
        .compare-after {
            background: var(--gradient);
            color: #fff;
        }
        .compare-before .cmp-label,
        .compare-after .cmp-label {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 8px;
            opacity: 0.8;
        }
        .compare-before p,
        .compare-after p {
            font-size: 16px;
            line-height: 1.6;
            margin-bottom: 0;
            font-weight: 500;
        }

        /* 客户证言 */
        .testimonials-section {
            padding: 96px 0;
            background: linear-gradient(180deg, var(--bg-deep) 0%, rgba(20, 24, 34, 0.4) 50%, var(--bg-deep) 100%);
        }
        .testimonial-card {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 32px;
            height: 100%;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }
        .testimonial-card:hover {
            border-color: rgba(139, 92, 246, 0.35);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .testimonial-card .quote-icon {
            width: 40px;
            height: 40px;
            margin-bottom: 20px;
        }
        .testimonial-card .quote-text {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-main);
            margin-bottom: 24px;
        }
        .testimonial-avatar {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .avatar-circle {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
        }
        .testimonial-avatar .name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.3;
        }
        .testimonial-avatar .role {
            font-size: 13px;
            color: var(--text-sub);
        }

        /* 资讯区 */
        .news-section {
            padding: 96px 0;
        }
        .news-list {
            display: flex;
            flex-direction: column;
        }
        .news-item {
            display: flex;
            align-items: baseline;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all 0.2s;
        }
        .news-item:hover {
            padding-left: 12px;
        }
        .news-item .news-date {
            font-size: 13px;
            color: var(--text-quiet);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .news-item .news-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
        }
        .news-item .news-title:hover {
            color: var(--primary);
        }
        .news-item .news-link-icon {
            margin-left: auto;
            color: var(--text-quiet);
            font-size: 14px;
            flex-shrink: 0;
        }
        .news-sidebar {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-light);
        }
        .sidebar-block {
            margin-bottom: 32px;
        }
        .sidebar-block:last-child {
            margin-bottom: 0;
        }
        .sidebar-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-light);
        }
        .hot-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .hot-tags .tag {
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-sub);
            transition: all 0.2s;
        }
        .hot-tags .tag:hover {
            border-color: var(--primary);
            color: var(--text-main);
        }
        .side-list {
            list-style: none;
        }
        .side-list li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .side-list li:last-child {
            border-bottom: none;
        }
        .side-list .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--gradient);
            flex-shrink: 0;
        }
        .side-list a {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.4;
            transition: color 0.2s;
        }
        .side-list a:hover {
            color: var(--primary);
        }
        .side-card {
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid rgba(255, 107, 74, 0.2);
            background: linear-gradient(135deg, rgba(255, 107, 74, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
        }
        .side-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .side-card p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 16px;
        }

        /* CTA */
        .cta-section {
            padding: 96px 0;
        }
        .cta-card {
            border-radius: 28px;
            background: var(--gradient);
            padding: 72px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.12);
            pointer-events: none;
        }
        .cta-card>* {
            position: relative;
            z-index: 1;
        }
        .cta-card h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-card p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
        }
        .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(0, 0, 0, 0.25);
            color: #fff;
            font-size: 15px;
            outline: none;
            transition: all 0.2s;
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        .cta-form input:focus {
            border-color: rgba(255, 255, 255, 0.6);
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
        }
        .cta-form .btn-white {
            padding: 14px 32px;
            font-size: 15px;
            font-weight: 700;
        }
        .cta-note {
            margin-top: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        /* FAQ */
        .faq-section {
            padding: 96px 0 64px;
        }
        .faq-section .container {
            max-width: 860px;
        }
        .faq-heading {
            text-align: center;
            margin-bottom: 48px;
        }
        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 16px;
            overflow: hidden;
            transition: all 0.3s;
        }
        .accordion-item:hover {
            border-color: rgba(255, 107, 74, 0.2) !important;
        }
        .accordion-header {
            background: transparent;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-size: 16px;
            font-weight: 700;
            padding: 22px 28px;
            border: none;
            box-shadow: none;
            transition: all 0.2s;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .accordion-button:not(.collapsed) {
            background: var(--bg-elevated);
            color: var(--text-main);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(255, 107, 74, 0.4);
            outline-offset: -2px;
        }
        .accordion-button::after {
            display: none;
        }
        .accordion-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            font-size: 18px;
            font-weight: 400;
            color: var(--primary);
            transition: all 0.3s;
            flex-shrink: 0;
            line-height: 1;
        }
        .accordion-button:not(.collapsed) .accordion-icon {
            background: var(--gradient);
            color: #fff;
            transform: rotate(45deg);
        }
        .accordion-body {
            padding: 0 28px 24px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-sub);
            background: var(--bg-elevated);
            border-top: 1px solid var(--border-light);
        }
        .accordion-body p {
            margin-bottom: 0;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            padding: 72px 0 0;
        }
        .footer-brand {
            margin-bottom: 24px;
        }
        .footer-brand .navbar-brand {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: var(--text-sub);
            transition: all 0.2s;
        }
        .footer-col ul a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-contact {
            font-size: 14px;
            color: var(--text-sub);
        }
        .footer-contact p {
            margin-bottom: 8px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding: 24px 0;
            margin-top: 48px;
            text-align: center;
            font-size: 13px;
            color: var(--text-quiet);
        }

        /* 通用焦点 */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid rgba(255, 107, 74, 0.5);
            outline-offset: 2px;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .hero {
                padding: 160px 0 100px;
            }
            .hero h1 {
                font-size: 38px;
            }
            .solution-sticky {
                position: static;
            }
            .section-pad {
                padding: 64px 0;
            }
            .pain-section,
            .solution-section,
            .results-section,
            .testimonials-section,
            .news-section,
            .cta-section,
            .faq-section {
                padding: 64px 0;
            }
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 32px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .section-title {
                font-size: 26px;
            }
            .cta-card {
                padding: 48px 24px;
            }
            .cta-card h2 {
                font-size: 28px;
            }
            .nav-actions {
                margin-top: 12px;
                flex-direction: column;
                align-items: stretch;
            }
            .nav-actions .btn-gradient,
            .nav-actions .btn-outline {
                justify-content: center;
            }
            .countdown-inner {
                flex-direction: column;
                gap: 12px;
            }
            .compare-bar {
                flex-direction: column;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero {
                padding: 140px 0 80px;
                min-height: auto;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero-data {
                gap: 20px;
            }
            .hero-data-item .num {
                font-size: 20px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form .btn-white {
                width: 100%;
            }
            .footer-bottom {
                font-size: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #FF6B4A;
            --pink: #F43F8E;
            --purple: #8B5CF6;
            --accent: #2AD4C6;
            --gradient: linear-gradient(120deg, #FF6B4A 0%, #F43F8E 55%, #8B5CF6 100%);
            --bg-deep: #0B0D12;
            --bg-card: #141822;
            --bg-elevated: #1C2130;
            --text-main: #F4F6FB;
            --text-sub: #A7B0C2;
            --text-quiet: #6B7284;
            --border: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.06);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 30px 60px rgba(0, 0, 0, 0.45);
            --transition: 0.16s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding: 96px 0;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            background: var(--gradient);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--text-main);
        }
        .section-desc {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-sub);
            max-width: 720px;
        }
        .btn-gradient {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            background: var(--gradient);
            color: #fff;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 8px 24px rgba(244, 63, 142, 0.22);
        }
        .btn-gradient:hover {
            transform: translateY(-2px);
            filter: brightness(1.06);
            box-shadow: 0 14px 36px rgba(244, 63, 142, 0.35);
            color: #fff;
        }
        .btn-gradient:focus {
            outline: 2px solid rgba(255, 107, 74, 0.5);
            outline-offset: 2px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            background: transparent;
            color: var(--text-main);
            font-weight: 600;
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all var(--transition);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--primary);
            color: var(--text-main);
            transform: translateY(-2px);
        }
        .btn-outline:focus {
            outline: 2px solid rgba(255, 107, 74, 0.5);
            outline-offset: 2px;
        }
        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            background: #fff;
            color: #111;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
        }
        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
            color: #111;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 13, 18, 0.82);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-header .navbar {
            padding: 14px 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.02em;
        }
        .navbar-brand:hover {
            color: var(--text-main);
        }
        .brand-logo {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 16px rgba(244, 63, 142, 0.3);
        }
        .navbar .nav-link {
            color: var(--text-sub);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 18px !important;
            border-radius: 8px;
            transition: all 0.2s;
        }
        .navbar .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
        }
        .navbar .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            padding: 8px 10px;
            border-radius: 10px;
            background: transparent;
            display: flex;
            flex-direction: column;
            gap: 4px;
            width: 44px;
            height: 40px;
            justify-content: center;
            align-items: center;
            transition: border-color 0.2s;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid rgba(255, 107, 74, 0.5);
            outline-offset: 2px;
            border-color: var(--primary);
        }
        .toggler-bar {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(2) {
            opacity: 0;
        }
        .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        /* 分类页标题区 */
        .category-hero {
            position: relative;
            padding: 160px 0 56px;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(11, 13, 18, 0.55) 0%, var(--bg-deep) 100%);
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.16;
            z-index: 0;
        }
        .category-hero::after {
            content: "";
            position: absolute;
            width: 500px;
            height: 500px;
            right: -120px;
            top: -120px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-quiet);
            margin-bottom: 24px;
        }
        .breadcrumb-nav a {
            color: var(--text-sub);
            transition: color 0.2s;
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-sep {
            color: var(--text-quiet);
            opacity: 0.5;
        }
        .breadcrumb-current {
            color: var(--text-main);
            font-weight: 600;
        }
        .category-hero h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 20px;
            max-width: 820px;
            letter-spacing: -0.01em;
        }
        .category-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-sub);
            max-width: 780px;
            margin-bottom: 28px;
        }
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 8px;
        }
        .filter-tag {
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-sub);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
        }
        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--text-main);
        }
        .filter-tag.active {
            background: var(--gradient);
            border-color: transparent;
            color: #fff;
            font-weight: 700;
        }

        /* 内容主体区 */
        .category-main {
            padding: 72px 0 96px;
        }
        .content-card {
            display: flex;
            background: var(--bg-card);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            margin-bottom: 24px;
            min-height: 220px;
        }
        .content-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 107, 74, 0.25);
            box-shadow: var(--shadow-hover);
        }
        .content-cover {
            flex: 0 0 280px;
            position: relative;
            overflow: hidden;
            min-height: 220px;
        }
        .content-cover img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .content-card:hover .content-cover img {
            transform: scale(1.04);
        }
        .content-body {
            flex: 1;
            padding: 28px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .content-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .card-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            background: rgba(42, 212, 198, 0.12);
            color: var(--accent);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.04em;
        }
        .card-date {
            font-size: 13px;
            color: var(--text-quiet);
        }
        .content-body h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-main);
            margin-bottom: 10px;
            transition: color 0.2s;
        }
        .content-card:hover .content-body h3 {
            color: var(--primary);
        }
        .content-body p {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-sub);
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-arrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-top: auto;
            transition: gap 0.2s, color 0.2s;
        }
        .card-arrow:hover {
            color: var(--primary);
            gap: 12px;
        }
        .card-arrow svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
        }

        /* 侧边栏 */
        .sidebar {
            position: sticky;
            top: 110px;
        }
        .sidebar-widget {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-bottom: 24px;
        }
        .widget-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-search {
            display: flex;
            align-items: center;
            background: var(--bg-deep);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            transition: border-color 0.2s, box-shadow 0.2s;
        }
        .sidebar-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 107, 74, 0.14);
        }
        .sidebar-search svg {
            width: 18px;
            height: 18px;
            stroke: var(--text-quiet);
            flex-shrink: 0;
        }
        .sidebar-search input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-main);
            padding: 12px 10px;
            width: 100%;
            font-size: 14px;
        }
        .sidebar-search input::placeholder {
            color: var(--text-quiet);
        }
        .keyword-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .keyword-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--bg-deep);
            border: 1px solid var(--border);
            color: var(--text-sub);
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition);
        }
        .keyword-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-1px);
        }
        .latest-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .latest-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .latest-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .latest-list li::before {
            content: "";
            display: block;
            width: 8px;
            height: 8px;
            border-radius: 2px;
            background: var(--gradient);
            margin-top: 9px;
            flex-shrink: 0;
        }
        .latest-list a {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-sub);
            transition: color 0.2s;
        }
        .latest-list a:hover {
            color: var(--primary);
        }
        .sidebar-cta {
            position: relative;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 28px 24px;
            overflow: hidden;
            text-align: center;
        }
        .sidebar-cta::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient);
        }
        .sidebar-cta h4 {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .sidebar-cta p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 18px;
            line-height: 1.6;
        }
        .sidebar-cta .btn-gradient {
            width: 100%;
            padding: 12px 16px;
            font-size: 14px;
        }

        /* 分页 */
        .pagination-wrap {
            margin-top: 48px;
        }
        .pagination {
            gap: 8px;
        }
        .page-item .page-link {
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-sub);
            border-radius: var(--radius-sm) !important;
            padding: 10px 18px;
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .page-item .page-link:hover {
            background: var(--bg-elevated);
            border-color: var(--primary);
            color: var(--text-main);
        }
        .page-item.active .page-link {
            background: var(--gradient);
            border-color: transparent;
            color: #fff;
        }
        .page-item.disabled .page-link {
            opacity: 0.4;
            pointer-events: none;
            background: var(--bg-card);
            border-color: var(--border);
        }

        /* 简化CTA */
        .simple-cta {
            position: relative;
            padding: 90px 0;
            overflow: hidden;
        }
        .simple-cta::before {
            content: "";
            position: absolute;
            width: 600px;
            height: 600px;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            background: radial-gradient(circle, rgba(255, 107, 74, 0.14) 0%, transparent 65%);
            pointer-events: none;
        }
        .simple-cta-inner {
            position: relative;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .simple-cta-inner h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .simple-cta-inner p {
            font-size: 16px;
            color: var(--text-sub);
            margin-bottom: 28px;
        }
        .simple-cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-deep);
        }
        .faq-section .section-head {
            margin-bottom: 48px;
        }
        .faq-section .section-head .section-tag {
            margin-bottom: 12px;
        }
        .faq-section .section-head h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-main);
        }
        .accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 16px;
            overflow: hidden;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-size: 16px;
            font-weight: 700;
            padding: 22px 26px;
            box-shadow: none;
            border: none;
            transition: background 0.2s;
        }
        .accordion-button:hover {
            background: rgba(255, 255, 255, 0.02);
        }
        .accordion-button:not(.collapsed) {
            background: var(--bg-elevated);
            color: var(--text-main);
        }
        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(255, 107, 74, 0.4);
            outline-offset: 2px;
        }
        .accordion-button::after {
            background-image: none;
            content: "+";
            font-size: 24px;
            font-weight: 400;
            line-height: 1;
            color: var(--primary);
            transform: rotate(0deg);
            transition: transform 0.3s ease;
            width: auto;
            height: auto;
            margin-left: auto;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .accordion-button:not(.collapsed)::after {
            background-image: none;
            content: "×";
            transform: rotate(90deg);
            color: var(--pink);
            font-size: 26px;
        }
        .accordion-body {
            padding: 0 26px 24px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.75;
            background: var(--bg-elevated);
            border-top: 1px solid var(--border-light);
            padding-top: 16px;
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border);
            padding: 72px 0 32px;
        }
        .footer-brand .navbar-brand {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-sub);
            max-width: 320px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 18px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-sub);
            transition: color 0.2s;
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-contact p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 8px;
            line-height: 1.6;
        }
        .footer-bottom {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            font-size: 13px;
            color: var(--text-quiet);
        }

        /* 响应式 */
        @media (max-width: 991px) {
            .navbar-collapse {
                background: rgba(11, 13, 18, 0.96);
                border-radius: 16px;
                padding: 18px;
                margin-top: 12px;
                border: 1px solid var(--border);
            }
            .navbar-nav {
                text-align: center;
                padding: 8px 0;
            }
            .navbar .nav-link {
                padding: 10px 16px !important;
            }
            .nav-actions {
                flex-direction: row;
                margin-top: 14px;
                gap: 10px;
                justify-content: center;
            }
            .nav-actions .btn-gradient,
            .nav-actions .btn-outline {
                flex: 1;
                padding: 10px 20px;
                font-size: 14px;
                max-width: 160px;
            }
            .sidebar {
                position: static;
                margin-top: 40px;
            }
            .content-card {
                min-height: 0;
            }
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 64px 0;
            }
            .category-hero {
                padding: 130px 0 40px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .content-card {
                flex-direction: column;
            }
            .content-cover {
                flex: none;
                width: 100%;
                min-height: 0;
                aspect-ratio: 16/9;
            }
            .content-cover img {
                position: absolute;
                inset: 0;
                width: 100%;
                height: 100%;
                object-fit: cover;
            }
            .content-body {
                padding: 22px 22px 24px;
            }
            .simple-cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .simple-cta-actions .btn-gradient,
            .simple-cta-actions .btn-outline {
                width: 100%;
                max-width: 280px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-hero h1 {
                font-size: 25px;
            }
            .content-body h3 {
                font-size: 17px;
            }
            .content-body p {
                -webkit-line-clamp: 3;
            }
            .filter-tag {
                padding: 6px 14px;
                font-size: 13px;
            }
        }

/* 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}