/* roulang page: index */
:root {
            --primary: #2B7FE0;
            --primary-dark: #1D4ED8;
            --primary-light: #EAF2FB;
            --accent: #F97316;
            --accent-hover: #EA580C;
            --success: #10B981;
            --bg: #F5F8FC;
            --white: #FFFFFF;
            --text-heading: #12263B;
            --text-body: #33475B;
            --text-muted: #7A8FA5;
            --border: rgba(15, 23, 42, 0.06);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 100px;
            --shadow-sm: 0 2px 10px rgba(18, 38, 59, 0.06);
            --shadow-md: 0 12px 24px rgba(18, 38, 59, 0.10);
            --shadow-nav: 0 8px 24px rgba(18, 38, 59, 0.10);
            --font-family: apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Inter", sans-serif;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: var(--font-family);
            cursor: pointer;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-heading);
            margin: 0 0 0.5em;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }

        .section {
            padding: 100px 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            background-color: var(--primary-light);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
        }

        .section-title {
            font-size: clamp(28px, 3.5vw, 40px);
            font-weight: 700;
            margin-bottom: 14px;
        }

        .section-sub {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 48px;
            line-height: 1.8;
        }

        .text-center {
            text-align: center;
        }

        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }

        /* ---------- 按钮 ---------- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1;
            background: none;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(43, 127, 224, 0.35);
            outline-offset: 2px;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            box-shadow: 0 8px 16px rgba(29, 78, 216, 0.25);
            transform: translateY(-1px);
        }

        .btn-accent {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .btn-accent:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            box-shadow: 0 8px 16px rgba(234, 88, 12, 0.22);
            transform: translateY(-1px);
        }

        .btn-outline {
            background-color: rgba(255, 255, 255, 0.9);
            color: var(--text-heading);
            border-color: rgba(18, 38, 59, 0.12);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 6px 14px rgba(43, 127, 224, 0.10);
        }

        .btn-small {
            height: 32px;
            padding: 0 16px;
            font-size: 14px;
            border-radius: var(--radius-sm);
        }

        /* ---------- 标签 ---------- */
        .tag,
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            line-height: 1;
            padding: 6px 12px;
            border-radius: var(--radius-pill);
        }

        .tag-blue,
        .badge-blue {
            background-color: var(--primary-light);
            color: var(--primary-dark);
        }

        .tag-gray {
            background-color: #F1F5F9;
            color: #475569;
        }

        .tag-orange {
            background-color: #FFF3EB;
            color: var(--accent-hover);
        }

        .tag-green {
            background-color: #E2F8F0;
            color: #0F8A62;
        }

        /* ---------- 导航 ---------- */
        .site-nav-wrap {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            display: flex;
            justify-content: center;
            padding: 0 4%;
            pointer-events: none;
        }

        .site-nav {
            pointer-events: auto;
            width: 92%;
            max-width: 1200px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            background: rgba(255, 255, 255, 0.82);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            border-radius: var(--radius-pill);
            padding: 10px 24px;
            box-shadow: 0 4px 18px rgba(18, 38, 59, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.55);
            transition: var(--transition);
            height: 62px;
        }

        .site-nav-wrap.is-sticky .site-nav {
            box-shadow: var(--shadow-nav);
            height: 56px;
            padding-top: 8px;
            padding-bottom: 8px;
        }

        .brand {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-heading);
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .brand-icon {
            width: 34px;
            height: 34px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            box-shadow: 0 4px 10px rgba(43, 127, 224, 0.25);
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .nav-menu a {
            display: inline-flex;
            align-items: center;
            height: 38px;
            padding: 0 16px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
        }

        .nav-menu a:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-menu a.active {
            color: var(--primary-dark);
            font-weight: 600;
            background-color: var(--primary-light);
        }

        .nav-download {
            height: 40px;
            padding: 0 22px;
            font-size: 15px;
            border-radius: var(--radius-pill);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            background: var(--primary-light);
            border: none;
            border-radius: var(--radius-pill);
            color: var(--primary-dark);
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }

        /* ---------- Hero ---------- */
        .hero {
            position: relative;
            background: linear-gradient(135deg, rgba(18, 38, 59, 0.78), rgba(29, 78, 216, 0.65)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 160px 0 110px;
            color: #fff;
            overflow: hidden;
        }

        .hero-inner {
            display: flex;
            align-items: center;
            gap: 60px;
        }

        .hero-copy {
            flex: 1 1 56%;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: clamp(36px, 5vw, 56px);
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

        .hero h1 span {
            color: #FFD166;
        }

        .hero-lead {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 32px;
            max-width: 540px;
        }

        .hero-lead p {
            margin-bottom: 6px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.16);
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 15px;
            font-weight: 500;
        }

        .trust-item i {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.15);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }

        .hero-visual {
            flex: 1 1 44%;
            display: flex;
            justify-content: center;
            position: relative;
        }

        .phone-mock {
            width: 280px;
            max-width: 100%;
            background: #102A43;
            border-radius: 36px;
            padding: 12px;
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
            position: relative;
        }

        .phone-mock::before {
            content: "";
            position: absolute;
            top: 20px;
            left: 50%;
            transform: translateX(-50%);
            width: 90px;
            height: 22px;
            background: #102A43;
            border-radius: 12px;
            z-index: 2;
        }

        .phone-screen {
            border-radius: 26px;
            overflow: hidden;
            background: #fff;
            position: relative;
        }

        .phone-screen img {
            height: 480px;
            width: 100%;
            object-fit: cover;
        }

        .playing-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            background: rgba(18, 38, 59, 0.75);
            color: #fff;
            font-size: 14px;
            padding: 10px 14px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            backdrop-filter: blur(6px);
        }

        /* ---------- 爆款卡片 ---------- */
        .hot-cards {
            background: var(--bg);
        }

        .hot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .hot-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .hot-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 3 / 4;
        }

        .hot-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .hot-card:hover .hot-cover img {
            transform: scale(1.05);
        }

        .hot-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(18, 38, 59, 0.35), transparent 50%);
        }

        .hot-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.95);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 13px;
            padding: 6px 12px;
            border-radius: var(--radius-pill);
        }

        .hot-buy {
            position: absolute;
            right: 14px;
            bottom: 14px;
            z-index: 2;
        }

        .hot-info {
            padding: 20px 20px 22px;
        }

        .hot-info h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .hot-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .stars {
            color: #F59E0B;
            font-size: 16px;
            letter-spacing: 1px;
        }

        .stars .star-empty {
            color: #D8E1EA;
        }

        .hot-desc {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* ---------- 种草清单 ---------- */
        .grass-list-section {
            background: var(--white);
        }

        .grass-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
            max-width: 960px;
            margin: 0 auto;
        }

        .grass-item {
            display: flex;
            align-items: center;
            gap: 24px;
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 18px 24px;
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
        }

        .grass-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(43, 127, 224, 0.22);
            transform: translateY(-2px);
        }

        .grass-rank {
            font-size: 32px;
            font-weight: 800;
            color: rgba(18, 38, 59, 0.12);
            width: 56px;
            text-align: center;
            font-style: italic;
            flex-shrink: 0;
        }

        .grass-thumb {
            width: 80px;
            height: 80px;
            border-radius: 16px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .grass-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .grass-info {
            flex: 1;
            min-width: 0;
        }

        .grass-info h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .grass-info p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .grass-side {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .grass-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            justify-content: flex-end;
        }

        /* ---------- 评论口碑 ---------- */
        .reviews-section {
            background: var(--primary-light);
        }

        .rating-summary {
            display: flex;
            align-items: center;
            gap: 40px;
            max-width: 720px;
            margin: 0 auto 40px;
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 24px 36px;
            box-shadow: var(--shadow-sm);
            flex-wrap: wrap;
            justify-content: center;
        }

        .rating-score {
            text-align: center;
        }

        .rating-score .score {
            font-size: 48px;
            font-weight: 800;
            color: var(--text-heading);
            line-height: 1;
        }

        .rating-score .label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        .rating-bar-wrap {
            flex: 1;
            min-width: 260px;
        }

        .rating-bar-row {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            margin-bottom: 10px;
        }

        .rating-bar-row .bar-label {
            width: 60px;
            color: var(--text-muted);
            font-weight: 500;
            text-align: right;
        }

        .rating-bar {
            flex: 1;
            height: 8px;
            background: #EDF2F7;
            border-radius: 100px;
            overflow: hidden;
        }

        .bar-fill {
            height: 100%;
            border-radius: 100px;
            background: linear-gradient(90deg, var(--primary), #60A5FA);
        }

        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 10px;
        }

        .review-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 26px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .review-head {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
        }

        .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }

        .avatar-1 {
            background: linear-gradient(135deg, #2B7FE0, #1D4ED8);
        }

        .avatar-2 {
            background: linear-gradient(135deg, #F97316, #EA580C);
        }

        .avatar-3 {
            background: linear-gradient(135deg, #10B981, #059669);
        }

        .review-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
        }

        .review-stars {
            font-size: 14px;
            color: #F59E0B;
            margin-top: 2px;
        }

        .review-text {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-body);
            margin: 0;
        }

        /* ---------- 一键跟买 CTA ---------- */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-light), var(--white) 70%);
            padding: 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            width: 380px;
            height: 380px;
            background: rgba(43, 127, 224, 0.07);
            border-radius: 50%;
            top: -140px;
            right: -80px;
        }

        .cta-section h2 {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
        }

        .cta-section p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

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

        /* ---------- 最新评测 CMS ---------- */
        .news-section {
            background: var(--bg);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items: start;
        }

        .news-main {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .news-item {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 26px 30px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

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

        .news-thumb {
            width: 120px;
            height: 90px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .news-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .news-body h3 a:hover {
            color: var(--primary);
        }

        .news-body p {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 10px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .news-side {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 100px;
        }

        .news-side h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-heading);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud .tag {
            transition: var(--transition);
        }

        .tag-cloud .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .empty-state {
            background: var(--white);
            border: 1px dashed #CBD5E1;
            border-radius: var(--radius-lg);
            padding: 44px 28px;
            text-align: center;
            color: var(--text-muted);
            font-size: 16px;
        }

        .empty-state i {
            font-size: 30px;
            color: #94A3B8;
            display: block;
            margin-bottom: 12px;
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--white);
        }

        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item.open {
            border-color: rgba(43, 127, 224, 0.25);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 20px 26px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary-dark);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 26px 22px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-body);
            border-top: 1px solid var(--border);
            padding-top: 16px;
            margin-top: 2px;
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: #102A43;
            color: #B3C5D7;
            padding: 70px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 44px;
        }

        .footer-brand {
            font-size: 19px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 20px;
            color: #B3C5D7;
        }

        .footer-socials {
            display: flex;
            gap: 10px;
        }

        .footer-socials a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #B3C5D7;
            font-size: 15px;
            transition: var(--transition);
        }

        .footer-socials a:hover {
            background: var(--primary);
            color: #fff;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }

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

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

        .footer-links a {
            font-size: 14px;
            color: #B3C5D7;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-contact {
            font-size: 14px;
            line-height: 2;
        }

        .footer-contact i {
            margin-right: 8px;
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 14px;
            color: #8499AE;
        }

        .footer-bottom a {
            color: #B3C5D7;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 1024px) {
            .hero-inner {
                flex-direction: column;
                text-align: center;
                gap: 40px;
            }

            .hero-copy {
                flex: 1 1 100%;
            }

            .hero-lead {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-actions {
                justify-content: center;
            }

            .hero-trust {
                justify-content: center;
            }

            .phone-mock {
                width: 240px;
                display: none;
            }

            .hot-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .news-layout {
                grid-template-columns: 1fr;
            }

            .news-side {
                position: static;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 70px 0;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-nav {
                height: 56px;
                padding: 8px 16px;
            }

            .brand {
                font-size: 17px;
            }

            .nav-download {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .nav-menu {
                position: fixed;
                top: 84px;
                left: 4%;
                right: 4%;
                background: var(--white);
                border-radius: 20px;
                box-shadow: var(--shadow-nav);
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 18px;
                display: none;
                border: 1px solid var(--border);
                z-index: 999;
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-menu a {
                height: 48px;
                border-radius: 12px;
                font-size: 16px;
                justify-content: center;
            }

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

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

            .grass-item {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 12px;
                padding: 16px;
            }

            .grass-rank {
                font-size: 26px;
                width: 40px;
            }

            .grass-thumb {
                width: 64px;
                height: 64px;
            }

            .grass-side {
                width: 100%;
                justify-content: flex-end;
                flex-wrap: wrap;
            }

            .grass-tags {
                justify-content: flex-start;
            }

            .rating-summary {
                padding: 20px;
                gap: 20px;
            }

            .news-item {
                flex-direction: column;
                padding: 20px;
            }

            .news-thumb {
                width: 100%;
                height: 150px;
            }

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

            .cta-section {
                padding: 70px 0;
            }

            .hero {
                padding: 140px 0 70px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 34px;
            }

            .hero-lead {
                font-size: 16px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .hero-trust {
                gap: 14px;
            }

            .trust-item {
                font-size: 14px;
            }

            .section-title {
                font-size: 26px;
            }

            .cta-actions .btn {
                width: 100%;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #2B7FE0;
            --color-primary-dark: #1D4ED8;
            --color-primary-light: #EAF2FB;
            --color-accent: #F97316;
            --color-accent-dark: #EA580C;
            --color-success: #10B981;
            --color-bg: #F5F8FC;
            --color-card: #FFFFFF;
            --color-title: #12263B;
            --color-text: #33475B;
            --color-muted: #7A8FA5;
            --color-border: rgba(15, 23, 42, 0.06);
            --shadow-card: 0 2px 10px rgba(18, 38, 59, 0.06);
            --shadow-hover: 0 12px 24px rgba(18, 38, 59, 0.10);
            --shadow-nav: 0 8px 24px rgba(18, 38, 59, 0.10);
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-tag: 8px;
            --font-main: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Inter", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--color-primary-dark);
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-heading {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-heading h2 {
            font-size: clamp(28px, 3.5vw, 40px);
            font-weight: 700;
            color: var(--color-title);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .section-heading p {
            font-size: 16px;
            color: var(--color-muted);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            text-decoration: none;
            line-height: 1;
            min-height: 44px;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff !important;
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 8px 16px rgba(29, 78, 216, 0.25);
            transform: translateY(-1px);
            color: #fff !important;
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff !important;
        }

        .btn-accent:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 8px 16px rgba(249, 115, 22, 0.25);
            transform: translateY(-1px);
            color: #fff !important;
        }

        .btn-outline {
            background: #fff;
            color: var(--color-title);
            border: 1px solid rgba(15, 23, 42, 0.10);
        }

        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            box-shadow: 0 4px 12px rgba(43, 127, 224, 0.12);
        }

        .nav-download {
            height: 38px;
            padding: 0 20px;
            border-radius: 100px;
            font-size: 14px;
        }

        .site-nav-wrap {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: 92%;
            max-width: 1200px;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.82);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            border-radius: 100px;
            box-shadow: var(--shadow-nav);
            border: 1px solid rgba(255, 255, 255, 0.4);
            padding: 10px 24px;
            transition: all 0.3s ease;
        }

        .site-nav-wrap.scrolled {
            top: 12px;
            padding: 6px 20px;
            box-shadow: 0 6px 20px rgba(18, 38, 59, 0.14);
        }

        .site-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 18px;
            color: var(--color-title);
            white-space: nowrap;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-menu a {
            color: var(--color-text);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 2px;
            position: relative;
            text-decoration: none;
        }

        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--color-primary);
        }

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border: none;
            background: transparent;
            font-size: 22px;
            color: var(--color-title);
            cursor: pointer;
            border-radius: 12px;
            align-items: center;
            justify-content: center;
            transition: background 0.2s;
        }

        .nav-toggle:hover {
            background: var(--color-primary-light);
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
        }

        .tag-blue {
            background: var(--color-primary-light);
            color: var(--color-primary-dark);
        }

        .tag-gray {
            background: #F1F5F9;
            color: #475569;
        }

        .tag-orange {
            background: #FFF3EB;
            color: #EA580C;
        }

        .article-hero {
            position: relative;
            background: linear-gradient(rgba(18, 38, 59, 0.78), rgba(18, 38, 59, 0.62)),
                url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 170px 0 110px;
            color: #fff;
            text-align: center;
        }

        .article-hero .grid-container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: inline-flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            -webkit-backdrop-filter: blur(4px);
            backdrop-filter: blur(4px);
            border-radius: 100px;
            padding: 7px 18px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            list-style: none;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
            transition: color 0.2s;
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb-sep {
            opacity: 0.5;
        }

        .article-hero h1 {
            font-size: clamp(28px, 3.5vw, 44px);
            font-weight: 800;
            color: #fff;
            max-width: 860px;
            margin: 0 auto 20px;
            line-height: 1.35;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            flex-wrap: wrap;
        }

        .meta-cat {
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            border-radius: 100px;
            padding: 5px 16px;
            font-weight: 600;
            font-size: 13px;
        }

        .meta-time {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
        }

        .article-section {
            position: relative;
            z-index: 2;
            margin-top: -46px;
            padding: 0 0 80px;
        }

        .article-content-card {
            background: var(--color-card);
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            padding: 52px 48px;
            max-width: 880px;
            margin: 0 auto;
        }

        .article-body {
            max-width: 760px;
            margin: 0 auto;
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text);
            word-wrap: break-word;
        }

        .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-title);
            margin: 40px 0 16px;
            padding-left: 16px;
            border-left: 4px solid var(--color-primary);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 21px;
            font-weight: 600;
            color: var(--color-title);
            margin: 28px 0 12px;
        }

        .article-body h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-title);
            margin: 22px 0 10px;
        }

        .article-body p {
            margin-bottom: 20px;
        }

        .article-body img {
            border-radius: 12px;
            margin: 24px 0;
            box-shadow: var(--shadow-card);
        }

        .article-body blockquote {
            background: var(--color-bg);
            border-left: 4px solid var(--color-primary);
            border-radius: 0 10px 10px 0;
            padding: 18px 22px;
            margin: 24px 0;
            color: var(--color-muted);
            font-style: normal;
        }

        .article-body ul,
        .article-body ol {
            padding-left: 24px;
            margin-bottom: 20px;
        }

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

        .article-body a {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

        .article-body a:hover {
            color: var(--color-primary-dark);
        }

        .article-missing {
            text-align: center;
            padding: 80px 20px;
        }

        .article-missing p {
            font-size: 20px;
            color: var(--color-muted);
            margin-bottom: 24px;
        }

        .download-guide-card {
            max-width: 760px;
            margin: 40px auto 0;
            background: linear-gradient(135deg, var(--color-primary-light), #ffffff);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

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

        .download-guide-card .guide-thumb {
            width: 80px;
            height: 80px;
            border-radius: 14px;
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-primary-light);
        }

        .guide-info {
            flex: 1;
            min-width: 0;
        }

        .guide-info h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-title);
            margin-bottom: 4px;
        }

        .guide-info p {
            font-size: 14px;
            color: var(--color-muted);
            margin: 0;
        }

        .download-guide-card .btn {
            flex-shrink: 0;
            height: 40px;
            padding: 0 22px;
            font-size: 14px;
        }

        .related-section {
            padding: 20px 0 70px;
        }

        .grid-x.grid-margin-x {
            margin-left: -12px;
            margin-right: -12px;
        }

        .grid-x.grid-margin-x > .cell {
            padding-left: 12px;
            padding-right: 12px;
            margin-bottom: 24px;
        }

        .related-card {
            background: var(--color-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            border: 1px solid var(--color-border);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .related-card .card-cover {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--color-primary-light);
        }

        .related-card .card-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .related-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-title);
            margin-bottom: 8px;
        }

        .related-card p {
            font-size: 14px;
            color: var(--color-muted);
            margin-bottom: 14px;
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .related-card .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .back-to-list {
            text-align: center;
            margin-top: 16px;
        }

        .back-to-list .btn {
            gap: 8px;
        }

        .cta-section {
            padding: 60px 0 90px;
            background: linear-gradient(180deg, var(--color-bg) 0%, #fff 100%);
            text-align: center;
        }

        .cta-inner {
            max-width: 720px;
            margin: 0 auto;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 24px;
            padding: 48px 40px;
            box-shadow: var(--shadow-card);
        }

        .cta-inner h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 700;
            color: var(--color-title);
            margin-bottom: 14px;
            line-height: 1.35;
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--color-muted);
            margin-bottom: 28px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .site-footer {
            background: #102A43;
            color: #B3C5D7;
            padding: 70px 0 0;
        }

        .site-footer .container,
        .site-footer .grid-container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand i {
            color: var(--color-primary-light);
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: #8CA5BB;
            margin-bottom: 20px;
        }

        .footer-socials {
            display: flex;
            gap: 12px;
        }

        .footer-socials a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #B3C5D7;
            font-size: 16px;
            transition: all 0.2s;
        }

        .footer-socials a:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .site-footer h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #B3C5D7;
            font-size: 14px;
            text-decoration: none;
            transition: color 0.2s;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #B3C5D7;
            margin-bottom: 10px;
        }

        .footer-contact i {
            color: var(--color-primary-light);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: #7A93A9;
        }

        .footer-bottom a {
            color: #7A93A9;
            text-decoration: none;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .nav-download {
                display: none;
            }

            .brand {
                font-size: 16px;
            }

            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

            .site-nav-wrap {
                padding: 8px 16px;
                width: 94%;
            }

            .nav-menu {
                position: fixed;
                top: 76px;
                left: 16px;
                right: 16px;
                background: rgba(255, 255, 255, 0.98);
                -webkit-backdrop-filter: blur(14px);
                backdrop-filter: blur(14px);
                border-radius: 20px;
                box-shadow: var(--shadow-nav);
                flex-direction: column;
                align-items: stretch;
                padding: 12px;
                gap: 4px;
                display: none;
                z-index: 999;
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-menu a {
                height: 48px;
                display: flex;
                align-items: center;
                padding: 0 16px;
                border-radius: 12px;
                font-size: 16px;
            }

            .nav-menu a:hover,
            .nav-menu a.active {
                background: var(--color-primary-light);
                color: var(--color-primary);
            }

            .nav-menu a.active::after {
                display: none;
            }

            .article-hero {
                padding: 140px 0 90px;
            }

            .article-content-card {
                padding: 32px 20px;
                border-radius: 16px;
            }

            .article-body {
                font-size: 16px;
            }

            .article-body h2 {
                font-size: 22px;
            }

            .article-body h3 {
                font-size: 19px;
            }

            .download-guide-card {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
            }

            .download-guide-card .guide-thumb {
                width: 72px;
                height: 72px;
            }

            .guide-info p {
                margin-bottom: 12px;
            }

            .cta-inner {
                padding: 36px 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 32px;
            }

            .grid-x.grid-margin-x {
                margin-left: 0;
                margin-right: 0;
            }

            .grid-x.grid-margin-x > .cell {
                padding-left: 0;
                padding-right: 0;
                margin-bottom: 16px;
            }
        }

        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 26px;
            }

            .breadcrumb {
                font-size: 12px;
                padding: 6px 14px;
            }

            .article-meta {
                gap: 10px;
                font-size: 13px;
            }

            .article-section {
                margin-top: -30px;
            }

            .back-to-list .btn {
                width: 100%;
            }

            .cta-inner {
                padding: 28px 18px;
                border-radius: 16px;
            }

            .cta-inner h2 {
                font-size: 22px;
            }

            .footer-bottom {
                font-size: 12px;
                line-height: 1.6;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2B7FE0;
            --primary-dark: #1D4ED8;
            --primary-light: #EAF2FB;
            --accent: #F97316;
            --accent-dark: #EA580C;
            --success: #10B981;
            --bg: #F5F8FC;
            --text-heading: #12263B;
            --text-body: #33475B;
            --text-muted: #7A8FA5;
            --border: rgba(15, 23, 42, 0.06);
            --white: #ffffff;
            --radius: 16px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(18, 38, 59, 0.06);
            --shadow-hover: 0 12px 24px rgba(18, 38, 59, 0.10);
            --shadow-nav: 0 8px 24px rgba(18, 38, 59, 0.10);
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Inter", sans-serif;
            background: var(--bg);
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

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

        ul,
        ol {
            list-style: none;
        }

        button {
            border: none;
            background: none;
            font: inherit;
            cursor: pointer;
            color: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: 100px 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-heading);
            line-height: 1.3;
            font-weight: 700;
        }

        /* ===== 导航 ===== */
        .site-nav-wrap {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            display: flex;
            justify-content: center;
            padding: 0 4%;
            pointer-events: none;
        }

        .site-nav {
            pointer-events: auto;
            width: 100%;
            max-width: 1200px;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-radius: 100px;
            padding: 10px 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: 0 4px 16px rgba(18, 38, 59, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.7);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .site-nav.scrolled {
            box-shadow: var(--shadow-nav);
            transform: translateY(-2px);
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-heading);
            white-space: nowrap;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }

        .nav-menu a {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            border-radius: 100px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            transition: background 0.2s ease, color 0.2s ease;
        }

        .nav-menu a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .nav-menu a.active {
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
        }

        .nav-download {
            margin-left: 4px;
            white-space: nowrap;
            height: 44px;
            line-height: 44px;
            padding: 0 28px;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary-dark);
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 28px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            border: 1px solid transparent;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 8px 16px rgba(29, 78, 216, 0.25);
            transform: translateY(-1px);
        }

        .btn-orange {
            background: var(--accent);
            color: #fff;
        }

        .btn-orange:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 8px 18px rgba(249, 115, 22, 0.3);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
            backdrop-filter: blur(4px);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
            border-color: #fff;
        }

        .btn-white-outline {
            background: #fff;
            color: var(--text-heading);
            border: 1px solid rgba(15, 23, 42, 0.12);
        }

        .btn-white-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-lg {
            height: 52px;
            padding: 0 36px;
            font-size: 17px;
        }

        .btn-small {
            height: 32px;
            padding: 0 16px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
        }

        .btn-small:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        /* ===== 分类 Banner ===== */
        .cat-banner {
            position: relative;
            padding: 170px 0 100px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }

        .cat-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(18, 38, 59, 0.62);
        }

        .cat-banner .container {
            position: relative;
            z-index: 2;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.22);
            color: #fff;
            padding: 6px 14px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .banner-title {
            color: #fff;
            font-size: clamp(34px, 4.6vw, 50px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            max-width: 800px;
        }

        .banner-desc {
            color: rgba(255, 255, 255, 0.92);
            font-size: 16px;
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 8px;
        }

        .banner-desc + .banner-desc {
            margin-top: 6px;
        }

        .banner-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 28px;
        }

        .banner-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 36px;
            padding-top: 22px;
            border-top: 1px solid rgba(255, 255, 255, 0.18);
            max-width: 640px;
        }

        .banner-trust span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
        }

        .banner-trust i {
            color: #fff;
            width: 22px;
            height: 22px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
        }

        /* ===== 数据条 ===== */
        .stats-bar {
            position: relative;
            z-index: 5;
            padding: 0 0 60px;
            margin-top: -40px;
        }

        .stats-inner {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border);
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 16px;
            padding: 32px 40px;
        }

        .stat-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            min-width: 160px;
        }

        .stat-item strong {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-heading);
            line-height: 1.2;
        }

        .stat-item span {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ===== 评测内容区 ===== */
        .cat-main {
            padding-top: 0;
        }

        .section-head {
            margin-bottom: 32px;
        }

        .section-head .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 100px;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: clamp(28px, 3.2vw, 38px);
            font-weight: 700;
            margin-bottom: 8px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 620px;
        }

        .review-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .review-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px;
            display: flex;
            gap: 20px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            align-items: center;
        }

        .review-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .review-thumb {
            width: 96px;
            height: 96px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--primary-light);
        }

        .review-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

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

        .review-info {
            flex: 1;
            min-width: 0;
        }

        .review-info h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .review-info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .review-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
        }

        .tag-blue {
            background: var(--primary-light);
            color: var(--primary-dark);
        }

        .tag-gray {
            background: #F1F5F9;
            color: #475569;
        }

        .tag-orange {
            background: #FFF3EB;
            color: var(--accent-dark);
        }

        .review-action {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 10px;
            flex-shrink: 0;
        }

        .rating-box {
            text-align: right;
        }

        .rating-box .stars {
            color: #F59E0B;
            font-size: 14px;
            letter-spacing: 1px;
        }

        .rating-box strong {
            font-size: 15px;
            color: var(--text-heading);
            margin-left: 4px;
        }

        /* ===== 右侧推荐栏 ===== */
        .side-panel {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 110px;
        }

        .side-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .side-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid #EFF3F8;
            position: relative;
        }

        .side-card h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 32px;
            height: 3px;
            background: var(--primary);
            border-radius: 100px;
        }

        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px;
            border-radius: 12px;
            transition: background 0.2s ease;
        }

        .rank-item:hover {
            background: var(--bg);
        }

        .rank-num {
            font-size: 14px;
            font-weight: 800;
            color: var(--text-muted);
            width: 26px;
            text-align: center;
            flex-shrink: 0;
        }

        .rank-item:first-child .rank-num {
            color: var(--accent);
        }

        .rank-item:nth-child(2) .rank-num {
            color: var(--primary);
        }

        .rank-thumb {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .rank-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .rank-info {
            flex: 1;
            min-width: 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 6px;
        }

        .rank-info span {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-heading);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .rank-info em {
            font-style: normal;
            font-size: 13px;
            font-weight: 700;
            color: #F59E0B;
        }

        .secure-note {
            background: var(--primary-light);
            border-radius: var(--radius);
            padding: 20px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }

        .secure-note i {
            color: var(--success);
            font-size: 20px;
            margin-top: 2px;
        }

        .secure-note p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.65;
            margin: 0;
        }

        .secure-note strong {
            color: var(--text-heading);
            font-weight: 600;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--primary-light);
        }

        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            text-align: left;
            background: none;
            border-radius: 0;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 14px;
            flex-shrink: 0;
            transition: transform 0.3s ease, background 0.3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 320px;
            padding-bottom: 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.75;
            border-top: 1px solid #EFF3F8;
            padding-top: 14px;
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-light) 0%, #ffffff 60%);
            padding: 90px 0;
        }

        .cta-box {
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 56px 48px;
            box-shadow: var(--shadow-hover);
        }

        .cta-box .cta-icon {
            width: 64px;
            height: 64px;
            background: #FFF3EB;
            color: var(--accent);
            border-radius: 18px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin-bottom: 20px;
        }

        .cta-box h2 {
            font-size: clamp(28px, 3.4vw, 38px);
            font-weight: 700;
            margin-bottom: 14px;
        }

        .cta-box p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 28px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #102A43;
            color: #B3C5D7;
            padding: 70px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand i {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #B3C5D7;
            max-width: 320px;
            margin-bottom: 20px;
        }

        .footer-socials {
            display: flex;
            gap: 10px;
        }

        .footer-socials a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #B3C5D7;
            font-size: 15px;
            transition: background 0.25s ease, color 0.25s ease;
        }

        .footer-socials a:hover {
            background: var(--primary);
            color: #fff;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #B3C5D7;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: color 0.2s ease;
        }

        .footer-links a::before {
            content: '';
            width: 4px;
            height: 4px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            margin-bottom: 12px;
            color: #B3C5D7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: #7A8FA5;
        }

        .footer-bottom a {
            color: #B3C5D7;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }

            .side-panel {
                position: static;
                margin-top: 32px;
            }

            .review-item {
                gap: 14px;
            }

            .review-thumb {
                width: 76px;
                height: 76px;
            }
        }

        @media (max-width: 768px) {
            section {
                padding: 64px 0;
            }

            .site-nav-wrap {
                top: 10px;
                padding: 0 16px;
            }

            .site-nav {
                padding: 8px 16px;
                gap: 10px;
                border-radius: 24px;
                flex-wrap: wrap;
            }

            .brand {
                font-size: 16px;
            }

            .brand-icon {
                width: 36px;
                height: 36px;
            }

            .nav-menu {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                z-index: -1;
                background: rgba(255, 255, 255, 0.97);
                flex-direction: column;
                align-items: flex-start;
                justify-content: center;
                padding: 40px 24px;
                gap: 4px;
                backdrop-filter: blur(14px);
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-menu a {
                width: 100%;
                height: 48px;
                font-size: 17px;
                padding: 0 18px;
                border-radius: 12px;
            }

            .nav-download {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
                margin-left: auto;
            }

            .cat-banner {
                padding: 140px 0 80px;
            }

            .banner-title {
                font-size: 32px;
            }

            .banner-desc {
                font-size: 15px;
            }

            .stats-bar {
                margin-top: -30px;
            }

            .stats-inner {
                padding: 24px 16px;
                gap: 12px;
            }

            .stat-item {
                min-width: 110px;
            }

            .stat-item strong {
                font-size: 26px;
            }

            .review-item {
                flex-wrap: wrap;
                padding: 16px;
            }

            .review-thumb {
                width: 64px;
                height: 64px;
            }

            .review-action {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
                width: 100%;
                padding-top: 12px;
                border-top: 1px solid #EFF3F8;
            }

            .rating-box {
                text-align: left;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                text-align: center;
                line-height: 1.6;
            }

            .cta-box {
                padding: 40px 24px;
                border-radius: 18px;
            }

            .cta-box h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .banner-badge {
                font-size: 12px;
            }

            .banner-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .banner-actions .btn {
                width: 100%;
            }

            .banner-trust {
                flex-direction: column;
                gap: 10px;
            }

            .stats-inner {
                justify-content: space-between;
            }

            .review-thumb {
                width: 56px;
                height: 56px;
            }

            .review-info h3 {
                font-size: 16px;
            }

            .review-info p {
                font-size: 13px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-answer {
                padding: 0 18px;
            }

            .faq-item.open .faq-answer {
                padding-bottom: 16px;
            }

            .footer-grid {
                gap: 24px;
            }
        }

/* roulang page: category2 */
:root {
    --primary: #2B7FE0;
    --primary-dark: #1D4ED8;
    --primary-light: #EAF2FB;
    --accent: #F97316;
    --accent-dark: #EA580C;
    --success: #10B981;
    --bg: #F5F8FC;
    --card: #FFFFFF;
    --title: #12263B;
    --body-text: #33475B;
    --muted: #7A8FA5;
    --border: rgba(15, 23, 42, 0.06);
    --radius-lg: 16px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 10px rgba(18, 38, 59, 0.06);
    --shadow-md: 0 8px 24px rgba(18, 38, 59, 0.10);
    --shadow-lg: 0 12px 24px rgba(18, 38, 59, 0.10);
    --transition: 0.25s ease;
    --nav-width: 1200px;
    --font-stack: apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Inter", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-stack);
    font-size: 16px;
    line-height: 1.75;
    background: var(--bg);
    color: var(--body-text);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: var(--primary); transition: color var(--transition); }
ul, ol { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 28px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    line-height: 1;
    gap: 8px;
    white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 8px 16px rgba(29, 78, 216, 0.25); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-orange { background: var(--accent); color: #fff; }
.btn-orange:hover { background: var(--accent-dark); box-shadow: 0 8px 16px rgba(249, 115, 22, 0.25); transform: translateY(-1px); }
.btn-orange:active { transform: translateY(0); }
.btn-outline { background: #fff; border: 1px solid #DAE3EE; color: var(--title); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); box-shadow: 0 4px 12px rgba(43, 127, 224, 0.12); }
.btn-small { height: 32px; padding: 0 16px; font-size: 14px; border-radius: 8px; }
.btn:focus-visible, .nav-toggle:focus-visible { outline: 3px solid rgba(43, 127, 224, 0.35); outline-offset: 2px; }

/* ---------- 标签 / 徽章 ---------- */
.tag {
    display: inline-flex;
    align-items: center;
    height: 26px;
    padding: 0 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 500;
    line-height: 1;
    white-space: nowrap;
}
.tag-blue { background: var(--primary-light); color: var(--primary-dark); }
.tag-gray { background: #F1F5F9; color: #475569; }
.tag-orange { background: #FFF3EB; color: var(--accent-dark); }
.tag-green { background: #E7F8F1; color: #0B8F67; }

/* ---------- 导航 ---------- */
.site-nav-wrap {
    position: fixed;
    top: 16px;
    left: 0;
    right: 0;
    z-index: 100;
    transition: top var(--transition);
}
.site-nav-wrap.nav-scrolled { top: 12px; }
.site-nav-wrap.nav-scrolled .site-nav { padding: 8px 24px; box-shadow: var(--shadow-md); }
.site-nav {
    max-width: var(--nav-width);
    width: 92%;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-radius: 100px;
    padding: 10px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 255, 255, 0.6);
    transition: all 0.3s ease;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 20px;
    color: var(--title);
    letter-spacing: -0.3px;
}
.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    flex-shrink: 0;
}
.nav-menu { display: flex; gap: 6px; align-items: center; }
.nav-menu a {
    color: var(--body-text);
    font-weight: 500;
    padding: 10px 16px;
    border-radius: 100px;
    font-size: 15px;
    transition: all var(--transition);
}
.nav-menu a:hover { color: var(--primary); background: var(--primary-light); }
.nav-menu a.active { background: var(--primary-light); color: var(--primary-dark); font-weight: 700; }
.nav-download { height: 42px; padding: 0 22px; font-size: 15px; }
.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 21px;
    color: var(--title);
    cursor: pointer;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    align-items: center;
    justify-content: center;
    transition: background var(--transition);
}
.nav-toggle:hover { background: var(--primary-light); }
.nav-toggle.active i::before { content: "\f00d"; }

/* ---------- 分类页 Hero ---------- */
.category-hero {
    position: relative;
    padding: 170px 0 100px;
    background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
    background-color: #12263B;
}
.category-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(18, 38, 59, 0.78) 0%, rgba(29, 78, 216, 0.48) 100%);
}
.category-hero .container { position: relative; z-index: 2; }
.hero-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-radius: 100px;
    padding: 8px 18px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
}
.hero-breadcrumb a { color: #fff; opacity: 0.8; }
.hero-breadcrumb a:hover { opacity: 1; }
.hero-breadcrumb i { font-size: 12px; opacity: 0.6; }
.category-hero h1 {
    color: #fff;
    font-size: clamp(34px, 4.6vw, 52px);
    font-weight: 800;
    line-height: 1.2;
    margin: 22px 0 18px;
    letter-spacing: -0.5px;
}
.category-hero .hero-sub {
    color: rgba(255, 255, 255, 0.86);
    font-size: 17px;
    max-width: 620px;
    line-height: 1.75;
}
.hero-actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.hero-trust {
    display: flex;
    gap: 24px;
    margin-top: 36px;
    flex-wrap: wrap;
}
.hero-trust span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-weight: 500;
}
.hero-trust i {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: var(--accent);
}

/* ---------- 区块通用 ---------- */
.section-block { padding: 100px 0; }
.section-head { margin-bottom: 40px; }
.section-title { font-size: clamp(28px, 3.5vw, 40px); font-weight: 800; color: var(--title); line-height: 1.25; letter-spacing: -0.4px; }
.section-subtitle { color: var(--muted); font-size: 16px; margin-top: 10px; max-width: 680px; }

/* ---------- 编辑推荐区 ---------- */
.editor-picks { padding: 100px 0 80px; }
.editor-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 400px;
    gap: 32px;
    align-items: start;
}
.editor-article {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-sm);
}
.editor-article h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--title);
    border-left: 4px solid var(--primary);
    padding-left: 14px;
    margin-bottom: 22px;
    line-height: 1.4;
}
.editor-article p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--body-text);
    margin-bottom: 16px;
}
.editor-article .editor-note {
    background: var(--primary-light);
    border-radius: 12px;
    padding: 18px 20px;
    font-size: 15px;
    color: #1f4a7a;
    margin-top: 18px;
    border-left: 3px solid var(--primary);
}
.tool-cards-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    position: sticky;
    top: 96px;
}
.tool-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.tool-thumb { position: relative; border-radius: 12px; overflow: hidden; }
.tool-thumb img { width: 100%; height: 110px; object-fit: cover; border-radius: 12px; transition: transform 0.4s ease; }
.tool-card:hover .tool-thumb img { transform: scale(1.05); }
.tool-thumb .tag { position: absolute; top: 10px; left: 10px; z-index: 2; }
.tool-card h3 { font-size: 18px; font-weight: 600; color: var(--title); margin: 14px 0 6px; }
.tool-card p { font-size: 14px; color: var(--muted); line-height: 1.55; flex: 1; margin-bottom: 12px; }
.tool-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 14px;
}
.tool-meta .rating { color: #F59E0B; font-weight: 600; }
.rating i { font-size: 13px; margin-right: 2px; }
.tool-card .btn { width: 100%; }

/* ---------- 热门工具总览 ---------- */
.popular-tools { background: #fff; padding: 100px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.tools-overview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.tool-list-item {
    display: flex;
    gap: 18px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}
.tool-list-item:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.tool-list-item img { width: 88px; height: 88px; border-radius: 12px; object-fit: cover; flex-shrink: 0; }
.tool-list-info { flex: 1; min-width: 0; }
.tool-list-info .tags-row { display: flex; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.tool-list-info h3 { font-size: 18px; font-weight: 600; color: var(--title); margin-bottom: 4px; }
.tool-list-info p { font-size: 14px; color: var(--muted); line-height: 1.55; }
.tool-list-bottom { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; }
.tool-list-bottom .rating { color: #F59E0B; font-size: 13px; font-weight: 600; }
.tool-list-bottom .rating i { font-size: 12px; }

/* ---------- 适用场景 ---------- */
.scene-section { padding: 100px 0; background: var(--bg); }
.scene-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.scene-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    display: flex;
    gap: 18px;
    align-items: flex-start;
}
.scene-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.scene-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}
.scene-card h3 { font-size: 18px; font-weight: 600; color: var(--title); margin-bottom: 6px; }
.scene-card p { font-size: 14px; color: var(--muted); line-height: 1.6; }

/* ---------- FAQ ---------- */
.faq-section { background: var(--primary-light); padding: 100px 0; }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 24px 28px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 16px;
    border: 1px solid var(--border);
    transition: box-shadow var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-md); }
.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 17px;
    color: var(--title);
    gap: 16px;
    user-select: none;
}
.faq-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    transition: transform 0.3s ease, background 0.3s ease;
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-item.open .faq-answer { max-height: 420px; }
.faq-answer-inner { padding-top: 14px; font-size: 15px; line-height: 1.75; color: var(--body-text); border-top: 1px solid var(--border); margin-top: 14px; }

/* ---------- CTA ---------- */
.cta-section { padding: 90px 0; background: linear-gradient(135deg, #EAF2FB 0%, #FFFFFF 60%); }
.cta-card {
    background: #fff;
    border-radius: 24px;
    padding: 56px;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(43, 127, 224, 0.2);
    max-width: 920px;
    margin: 0 auto;
}
.cta-card h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; color: var(--title); line-height: 1.3; }
.cta-card p { font-size: 16px; color: var(--muted); margin: 16px auto 32px; max-width: 620px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.site-footer { background: #102A43; color: #B3C5D7; padding: 80px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-brand { font-size: 22px; font-weight: 800; color: #fff; display: flex; align-items: center; gap: 10px; }
.footer-brand i {
    width: 40px; height: 40px; border-radius: 12px; background: var(--primary); color: #fff;
    display: inline-flex; align-items: center; justify-content: center; font-size: 17px;
}
.footer-desc { font-size: 14px; line-height: 1.8; margin-top: 16px; color: #8CA5BD; }
.footer-socials { display: flex; gap: 10px; margin-top: 20px; }
.footer-socials a {
    width: 40px; height: 40px; border-radius: 10px; background: rgba(255, 255, 255, 0.08);
    color: #B3C5D7; display: flex; align-items: center; justify-content: center;
    transition: all var(--transition); font-size: 16px;
}
.footer-socials a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 16px; font-weight: 600; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #B3C5D7; font-size: 14px; transition: all 0.2s; }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact p { font-size: 14px; color: #B3C5D7; margin-bottom: 10px; }
.footer-contact i { color: var(--primary); margin-right: 8px; width: 18px; text-align: center; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px 0;
    font-size: 13px;
    color: #7A96AD;
    text-align: center;
}
.footer-bottom a { color: #7A96AD; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .editor-layout { grid-template-columns: 1fr; }
    .tool-cards-wrap { grid-template-columns: 1fr 1fr; position: static; }
    .tools-overview-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .section-block, .editor-picks, .popular-tools, .scene-section, .faq-section { padding: 70px 0; }
    .category-hero { padding: 140px 0 70px; }
    .nav-toggle { display: inline-flex; }
    .site-nav-wrap { top: 12px; }
    .site-nav { padding: 8px 16px; border-radius: 100px; }
    .nav-menu {
        display: none;
        position: fixed;
        top: 76px;
        left: 4%;
        right: 4%;
        background: #fff;
        border-radius: 16px;
        flex-direction: column;
        padding: 14px;
        box-shadow: var(--shadow-lg);
        border: 1px solid var(--border);
        z-index: 200;
    }
    .nav-menu.open { display: flex; }
    .nav-menu a {
        width: 100%;
        text-align: center;
        height: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        border-radius: 12px;
    }
    .nav-download { margin-left: auto; margin-right: 8px; height: 40px; padding: 0 18px; font-size: 14px; }
    .hero-actions .btn { width: 100%; }
    .tools-overview-grid { grid-template-columns: 1fr; }
    .scene-grid { grid-template-columns: 1fr; }
    .cta-card { padding: 36px 24px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .tool-cards-wrap { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .footer-grid { grid-template-columns: 1fr; }
    .brand { font-size: 17px; }
    .brand-icon { width: 36px; height: 36px; font-size: 15px; }
    .tool-list-item { flex-direction: column; }
    .tool-list-item img { width: 100%; height: 130px; }
    .tool-meta { flex-wrap: wrap; gap: 6px; }
    .hero-trust { gap: 14px; }
    .faq-item { padding: 20px; }
    .section-title { font-size: 26px; }
}