/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #5B8FA8;
            --primary-light: #6CA5B8;
            --primary-dark: #4A7A90;
            --amber: #C8894A;
            --green: #8FAE8B;
            --bg: #F5F8FA;
            --card: #FFFFFF;
            --text: #1F2A38;
            --text-sub: #66788A;
            --text-muted: #98A9B8;
            --border: #E3ECF2;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-badge: 6px;
            --shadow-card: 0 2px 8px rgba(31, 42, 56, .06);
            --shadow-hover: 0 8px 24px rgba(31, 42, 56, .10);
            --container: 1200px;
        }

        /* ===== 基础 Reset ===== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        img {
            display: block;
            max-width: 100%;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .3s ease;
        }
        a:hover {
            color: var(--primary-dark);
        }
        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
            font-size: 15px;
        }

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

        /* ===== 通用板块 ===== */
        .section {
            padding: 72px 0;
        }
        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(91, 143, 168, .10);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 30px;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            transition: all .3s ease;
            letter-spacing: .3px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(91, 143, 168, .30);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(91, 143, 168, .20);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(91, 143, 168, .30);
            outline-offset: 2px;
        }
        .btn-outline {
            background: #fff;
            border: 1px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(91, 143, 168, .08);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-amber {
            background: var(--amber);
            color: #fff;
        }
        .btn-amber:hover {
            background: #b0763c;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(200, 137, 74, .30);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 40px;
            font-size: 16px;
        }

        /* ===== 标签/徽章 ===== */
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(91, 143, 168, .10);
            color: var(--primary);
        }
        .badge-amber {
            background: rgba(200, 137, 74, .12);
            color: var(--amber);
        }
        .badge-green {
            background: rgba(143, 174, 139, .15);
            color: #5c7a57;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow .3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(31, 42, 56, .08);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 20px;
        }
        .logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            letter-spacing: .5px;
        }
        .logo span {
            color: var(--primary);
        }
        .header-search {
            flex: 1;
            max-width: 420px;
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 30px;
            padding: 0 18px;
            height: 40px;
            transition: border-color .3s, box-shadow .3s;
        }
        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(91, 143, 168, .12);
        }
        .header-search input {
            flex: 1;
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--text);
        }
        .header-search input::placeholder {
            color: var(--text-muted);
        }
        .header-search i {
            color: var(--text-muted);
            margin-right: 10px;
            font-size: 14px;
        }
        .header-nav {
            border-top: 1px solid var(--border);
            background: rgba(255, 255, 255, .80);
        }
        .header-nav .container {
            display: flex;
            align-items: center;
            gap: 6px;
            height: 48px;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            transition: all .3s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(91, 143, 168, .06);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(91, 143, 168, .08);
            font-weight: 600;
        }
        .nav-trend {
            margin-left: auto;
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .nav-trend i {
            font-size: 12px;
        }
        @media (max-width: 768px) {
            .header-top {
                height: 56px;
            }
            .logo {
                font-size: 18px;
            }
            .header-search {
                display: none;
            }
            .header-nav .container {
                height: 44px;
                overflow-x: auto;
                white-space: nowrap;
                padding: 0 12px;
                scrollbar-width: none;
            }
            .header-nav .container::-webkit-scrollbar {
                display: none;
            }
            .nav-trend {
                display: none;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: linear-gradient(135deg, rgba(31, 42, 56, .92), rgba(31, 42, 56, .78)), url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            color: #fff;
            padding: 96px 0 88px;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 56px;
            align-items: center;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            letter-spacing: .5px;
            margin-bottom: 20px;
        }
        .hero-tag i {
            color: var(--green);
        }
        .hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 18px;
            color: #fff;
        }
        .hero-sub {
            font-size: 16px;
            line-height: 1.85;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 28px;
            max-width: 540px;
        }
        .hero-search {
            display: flex;
            background: #fff;
            border-radius: 40px;
            padding: 5px;
            max-width: 480px;
            margin-bottom: 18px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
        }
        .hero-search input {
            flex: 1;
            border: none;
            outline: none;
            padding: 0 18px;
            font-size: 15px;
            border-radius: 40px;
            background: transparent;
            color: var(--text);
        }
        .hero-search button {
            background: var(--primary);
            color: #fff;
            border-radius: 40px;
            padding: 10px 26px;
            font-size: 14px;
            font-weight: 600;
            transition: background .3s;
        }
        .hero-search button:hover {
            background: var(--primary-dark);
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 24px;
        }
        .hero-tags a {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .15);
            color: rgba(255, 255, 255, .85);
            font-size: 13px;
            transition: all .3s;
        }
        .hero-tags a:hover {
            background: rgba(255, 255, 255, .18);
            border-color: rgba(255, 255, 255, .3);
            color: #fff;
        }
        .hero-btns {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-rank {
            background: rgba(255, 255, 255, .10);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 20px;
            padding: 28px;
            backdrop-filter: blur(4px);
        }
        .hero-rank-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, .10);
        }
        .hero-rank-header h3 {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
        }
        .hero-rank-header span {
            font-size: 12px;
            color: rgba(255, 255, 255, .5);
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            transition: background .3s;
            border-radius: 8px;
            padding-left: 8px;
            padding-right: 8px;
        }
        .rank-item:last-child {
            border-bottom: none;
        }
        .rank-item:hover {
            background: rgba(255, 255, 255, .06);
        }
        .rank-num {
            font-size: 18px;
            font-weight: 700;
            color: var(--amber);
            width: 28px;
            text-align: center;
        }
        .rank-info {
            flex: 1;
        }
        .rank-info h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            line-height: 1.4;
        }
        .rank-info p {
            font-size: 12px;
            color: rgba(255, 255, 255, .55);
            margin-top: 2px;
        }
        .rank-tag {
            font-size: 12px;
            background: rgba(143, 174, 139, .15);
            color: var(--green);
            padding: 3px 10px;
            border-radius: 20px;
            white-space: nowrap;
        }
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero {
                padding: 72px 0 64px;
            }
            .hero h1 {
                font-size: 30px;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 24px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .hero-search {
                flex-direction: column;
                background: transparent;
                box-shadow: none;
                gap: 10px;
            }
            .hero-search input {
                height: 44px;
                background: #fff;
            }
            .hero-search button {
                width: 100%;
                border-radius: 40px;
            }
        }

        /* ===== 服务项目 ===== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .service-card {
            background: var(--card);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform .3s ease, box-shadow .3s ease;
            position: relative;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .service-card-media {
            position: relative;
            height: 180px;
            overflow: hidden;
        }
        .service-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .service-card:hover .service-card-media img {
            transform: scale(1.06);
        }
        .service-card-media .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, .92);
            box-shadow: 0 2px 8px rgba(0, 0, 0, .08);
        }
        .service-card-body {
            padding: 20px;
        }
        .service-card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .service-card-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            transition: gap .3s;
        }
        .service-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }
        .service-card.large .service-card-media {
            height: 240px;
        }
        .service-card.large .service-card-body h3 {
            font-size: 20px;
        }
        @media (max-width: 1024px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
            .service-card.large .service-card-media {
                height: 200px;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-bar {
            background: var(--card);
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            padding: 40px 48px;
            margin-top: -36px;
            position: relative;
            z-index: 5;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 0 12px;
            position: relative;
        }
        .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 20%;
            height: 60%;
            width: 1px;
            background: var(--border);
        }
        .stat-number {
            font-size: 38px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item p {
            font-size: 13px;
            color: var(--text-sub);
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 30px 24px;
            }
            .stat-item:nth-child(2)::after {
                display: none;
            }
            .stat-number {
                font-size: 30px;
            }
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            display: grid;
            grid-template-columns: .8fr 1.2fr;
            gap: 48px;
        }
        .faq-left {
            padding-top: 8px;
        }
        .faq-left h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .faq-left p {
            color: var(--text-sub);
            font-size: 15px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: box-shadow .3s;
        }
        .faq-item.active {
            box-shadow: var(--shadow-card);
            border-color: rgba(91, 143, 168, .3);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            user-select: none;
            transition: background .3s;
        }
        .faq-question:hover {
            background: rgba(245, 248, 250, .6);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(91, 143, 168, .10);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform .3s;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease, padding .3s ease;
            padding: 0 22px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }
        @media (max-width: 768px) {
            .faq-wrap {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        /* ===== 资讯区 ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .case-card {
            background: var(--card);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform .3s, box-shadow .3s;
            margin-bottom: 20px;
            display: flex;
        }
        .case-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .case-card-media {
            width: 140px;
            min-height: 120px;
            flex-shrink: 0;
        }
        .case-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-card-body {
            padding: 16px 18px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .case-card-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .case-card-body p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 8px;
        }
        .case-card-body .case-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
        }
        .news-panel {
            background: var(--card);
            border-radius: 16px;
            padding: 24px;
            box-shadow: var(--shadow-card);
        }
        .news-panel-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 16px;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--border);
        }
        .news-list {
            display: flex;
            flex-direction: column;
        }
        .news-list-item {
            display: flex;
            flex-direction: column;
            padding: 14px 0;
            border-bottom: 1px solid rgba(227, 236, 242, .6);
            transition: background .3s;
            border-radius: 8px;
            padding-left: 8px;
            padding-right: 8px;
            margin: 0 -8px;
        }
        .news-list-item:last-child {
            border-bottom: none;
        }
        .news-list-item:hover {
            background: var(--bg);
        }
        .news-item-meta {
            display: flex;
            gap: 10px;
            align-items: center;
            margin-bottom: 6px;
        }
        .news-item-meta .badge {
            font-size: 12px;
            padding: 2px 10px;
        }
        .news-item-meta time {
            font-size: 12px;
            color: var(--text-muted);
        }
        .news-list-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .news-list-item h4:hover {
            color: var(--primary);
        }
        .news-list-item p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            background: rgba(245, 248, 250, .6);
            border-radius: 12px;
            border: 1px dashed var(--border);
            color: var(--text-muted);
            font-size: 14px;
        }
        .empty-state i {
            font-size: 32px;
            display: block;
            margin-bottom: 12px;
            color: var(--text-muted);
        }
        @media (max-width: 768px) {
            .news-layout {
                grid-template-columns: 1fr;
            }
            .case-card-media {
                width: 110px;
            }
        }

        /* ===== 方案板块 ===== */
        .plan-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .plan-card {
            background: var(--card);
            border-radius: 20px;
            padding: 36px;
            box-shadow: var(--shadow-card);
            transition: transform .3s, box-shadow .3s;
            border-top: 4px solid var(--primary);
        }
        .plan-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .plan-card.plan-tea {
            border-top-color: var(--amber);
        }
        .plan-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(91, 143, 168, .10);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 18px;
        }
        .plan-tea .plan-icon {
            background: rgba(200, 137, 74, .10);
            color: var(--amber);
        }
        .plan-card h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .plan-card .plan-target {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 18px;
        }
        .plan-list {
            margin-bottom: 20px;
        }
        .plan-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 6px 0;
            font-size: 15px;
            color: var(--text);
            line-height: 1.6;
        }
        .plan-list li i {
            color: var(--green);
            margin-top: 4px;
            font-size: 14px;
        }
        .plan-card .btn {
            width: 100%;
        }
        @media (max-width: 768px) {
            .plan-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 安全体系 ===== */
        .trust-section {
            background: var(--card);
            border-radius: 20px;
            padding: 48px;
            box-shadow: var(--shadow-card);
        }
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .trust-card {
            text-align: center;
            padding: 20px;
            border-radius: 16px;
            transition: background .3s;
        }
        .trust-card:hover {
            background: var(--bg);
        }
        .trust-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(91, 143, 168, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 24px;
            color: var(--primary);
        }
        .trust-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .trust-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.65;
        }
        @media (max-width: 768px) {
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .trust-section {
                padding: 30px 20px;
            }
        }

        /* ===== CTA / 联系 ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(91, 143, 168, .10), rgba(200, 137, 74, .06)), var(--bg);
            padding: 72px 0;
        }
        .cta-box {
            background: var(--card);
            border-radius: 24px;
            padding: 56px;
            box-shadow: var(--shadow-card);
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
        }
        .cta-box h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .cta-box>p {
            color: var(--text-sub);
            font-size: 15px;
            max-width: 540px;
            margin: 0 auto 32px;
        }
        .contact-form {
            max-width: 560px;
            margin: 0 auto;
            text-align: left;
        }
        .form-row {
            margin-bottom: 16px;
        }
        .form-row label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }
        .form-row input,
        .form-row textarea {
            width: 100%;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 12px 16px;
            font-size: 15px;
            transition: border-color .3s, box-shadow .3s;
            background: #fff;
            color: var(--text);
        }
        .form-row input:focus,
        .form-row textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(91, 143, 168, .12);
        }
        .form-row textarea {
            min-height: 100px;
            resize: vertical;
        }
        @media (max-width: 520px) {
            .cta-box {
                padding: 32px 20px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #1F2A38;
            color: rgba(255, 255, 255, .75);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
            color: #fff;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            padding: 4px 0;
            transition: color .3s, padding-left .3s;
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 6px;
        }
        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 6px;
        }
        .footer-contact i {
            width: 20px;
            margin-right: 4px;
            color: var(--primary-light);
        }
        .footer-qr {
            width: 100px;
            height: 100px;
            background: rgba(255, 255, 255, .08);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            color: rgba(255, 255, 255, .4);
            border: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
            text-align: center;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .5);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 滚动动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity .6s ease, transform .6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: article */
:root {
            --primary: #5B8FA8;
            --primary-dark: #4A7A90;
            --accent: #C8894A;
            --green: #8FAE8B;
            --bg: #F5F8FA;
            --white: #FFFFFF;
            --text: #1F2A38;
            --text-secondary: #66788A;
            --text-muted: #98A9B8;
            --border: #E3ECF2;
            --radius: 16px;
            --radius-sm: 8px;
            --radius-xs: 6px;
            --shadow: 0 2px 8px rgba(31,42,56,.06);
            --shadow-hover: 0 8px 24px rgba(31,42,56,.10);
            --container: 1200px;
            --transition: all .3s ease;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(31, 42, 56, .04);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 12px;
            padding-bottom: 12px;
        }

        .logo {
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

        .logo span {
            color: var(--primary);
        }

        .header-search {
            flex: 1;
            max-width: 420px;
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 8px 16px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .header-search input {
            border: none;
            outline: none;
            background: transparent;
            width: 100%;
            margin-left: 8px;
            font-size: 14px;
            color: var(--text);
        }

        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(91, 143, 168, .08);
        }

        .header-nav {
            background: rgba(245, 248, 250, .9);
            border-top: 1px solid var(--border);
        }

        .header-nav .container {
            display: flex;
            align-items: center;
            gap: 8px;
            padding-top: 8px;
            padding-bottom: 8px;
            overflow-x: auto;
        }

        .nav-link {
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(91, 143, 168, .08);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(91, 143, 168, .12);
        }

        .nav-trend {
            margin-left: auto;
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .nav-trend i {
            color: var(--accent);
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.2;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(91, 143, 168, .3);
        }

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

        .btn-accent:hover {
            background: #b3773a;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(200, 137, 74, .3);
        }

        .btn-sm {
            padding: 6px 14px;
            font-size: 14px;
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            padding: 24px 0 8px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .breadcrumb a {
            color: var(--text-secondary);
        }

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

        .breadcrumb .sep {
            color: var(--text-muted);
        }

        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }

        /* 文章主体 */
        .article-main {
            padding: 24px 0 60px;
        }

        .article-wrap {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 32px 40px;
            max-width: 860px;
            margin: 0 auto;
        }

        .article-header {
            margin-bottom: 32px;
            border-bottom: 1px solid var(--border);
            padding-bottom: 24px;
        }

        .article-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-xs);
            font-size: 13px;
            font-weight: 600;
            background: rgba(91, 143, 168, .1);
            color: var(--primary);
        }

        .badge-tea {
            background: rgba(200, 137, 74, .1);
            color: var(--accent);
        }

        .article-content {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 32px 0 16px;
            line-height: 1.3;
        }

        .article-content h3 {
            font-size: 19px;
            font-weight: 600;
            margin: 24px 0 12px;
            line-height: 1.4;
        }

        .article-content p {
            margin: 16px 0;
        }

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

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(91, 143, 168, .06);
            padding: 16px 20px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-content img {
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow);
            margin: 24px 0;
        }

        .article-content a {
            text-decoration: underline;
            text-underline-offset: 2px;
        }

        .not-found {
            text-align: center;
            padding: 60px 20px;
        }

        .not-found h2 {
            font-size: 28px;
            margin-bottom: 16px;
        }

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

        /* 相关推荐 */
        .section-title {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 24px;
            position: relative;
            padding-left: 16px;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            border-radius: 2px;
            background: var(--primary);
        }

        .related-posts {
            padding: 48px 0;
            max-width: 860px;
            margin: 0 auto;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .related-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: block;
            color: var(--text);
        }

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

        .related-card img {
            width: 100%;
            height: 140px;
            object-fit: cover;
        }

        .related-card-body {
            padding: 16px;
        }

        .related-card-body h3 {
            font-size: 16px;
            font-weight: 600;
            margin: 8px 0 6px;
            line-height: 1.4;
        }

        .related-card-body p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.5;
        }

        /* CTA 区块 */
        .cta-section {
            background: linear-gradient(135deg, rgba(91, 143, 168, .08), rgba(91, 143, 168, .02));
            border-radius: var(--radius);
            padding: 48px 20px;
            margin: 40px auto 60px;
            max-width: 860px;
        }

        .cta-content {
            max-width: 640px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-content h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-content p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .cta-form {
            display: grid;
            gap: 12px;
        }

        .cta-form input,
        .cta-form textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            outline: none;
            background: #fff;
            transition: var(--transition);
        }

        .cta-form input:focus,
        .cta-form textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(91, 143, 168, .1);
        }

        .cta-form textarea {
            min-height: 80px;
            resize: vertical;
        }

        /* 页脚 */
        .site-footer {
            background: var(--text);
            color: rgba(255, 255, 255, .85);
            padding: 48px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
        }

        .footer-brand h3 {
            font-size: 22px;
            margin-bottom: 12px;
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            line-height: 1.6;
        }

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

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, .65);
            margin-bottom: 8px;
            font-size: 14px;
        }

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

        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            margin-bottom: 8px;
        }

        .footer-qr {
            width: 80px;
            height: 80px;
            background: rgba(255, 255, 255, .1);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            color: rgba(255, 255, 255, .6);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 16px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .4);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }

            .header-search {
                order: 3;
                max-width: 100%;
                margin-top: 8px;
            }

            .header-nav .container {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }

            .nav-trend {
                display: none;
            }

            .article-wrap {
                padding: 24px;
                margin: 0 8px;
            }

            .article-title {
                font-size: 24px;
            }

            .cta-section {
                padding: 32px 16px;
            }
        }

        @media (max-width: 520px) {
            .related-grid {
                grid-template-columns: 1fr;
            }

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

            .logo {
                font-size: 20px;
            }

            .article-meta {
                gap: 10px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #5B8FA8;
            --primary-dark: #3D6E86;
            --primary-light: #EAF2F6;
            --accent: #C8894A;
            --accent-light: #FBF4EC;
            --green: #8FAE8B;
            --green-light: #EEF4EE;
            --bg: #F5F8FA;
            --white: #FFFFFF;
            --text: #1F2A38;
            --text-sub: #66788A;
            --text-mute: #98A9B8;
            --border: #E3ECF2;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-tag: 6px;
            --shadow-card: 0 2px 8px rgba(31, 42, 56, .06);
            --shadow-hover: 0 8px 24px rgba(31, 42, 56, .10);
            --container: 1200px;
            --header-height: 110px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            display: block;
            max-width: 100%;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary-dark);
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 64px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-head {
            margin-bottom: 36px;
        }
        .section-head .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 8px;
            color: var(--text);
        }
        .section-head .section-sub {
            color: var(--text-sub);
            font-size: 15px;
            max-width: 640px;
        }
        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            transition: box-shadow .3s ease, background .3s ease;
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 4px 16px rgba(31, 42, 56, .06);
            border-bottom-color: var(--border);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 12px;
            padding-bottom: 12px;
        }
        .logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: .5px;
            line-height: 1.3;
            white-space: nowrap;
        }
        .logo span {
            color: var(--primary);
            font-weight: 700;
            margin-left: 2px;
        }
        .header-search {
            flex: 1;
            max-width: 420px;
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 6px 16px;
            gap: 8px;
            transition: border-color .2s ease, box-shadow .2s ease;
        }
        .header-search i {
            color: var(--text-mute);
            font-size: 14px;
        }
        .header-search input {
            flex: 1;
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text);
            min-width: 0;
        }
        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(91, 143, 168, .15);
        }
        .header-search input::placeholder {
            color: var(--text-mute);
        }
        .header-nav {
            border-top: 1px solid var(--border);
            background: rgba(255, 255, 255, 0.7);
        }
        .header-nav .container {
            display: flex;
            align-items: center;
            gap: 24px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            padding-top: 6px;
            padding-bottom: 6px;
            scrollbar-width: none;
        }
        .header-nav .container::-webkit-scrollbar {
            display: none;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            padding: 6px 2px;
            position: relative;
            white-space: nowrap;
            transition: color .2s ease;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transition: transform .25s ease;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            transform: scaleX(1);
        }
        .nav-trend {
            font-size: 13px;
            color: var(--text-mute);
            margin-left: auto;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-trend i {
            color: var(--accent);
        }
        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .25s ease;
            white-space: nowrap;
            text-align: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(59, 102, 126, .25);
        }
        .btn-primary:active {
            background: #33596E;
            transform: translateY(0);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(91, 143, 168, .3);
            outline-offset: 2px;
        }
        .btn-outline {
            background: var(--white);
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(91, 143, 168, .12);
        }
        .btn-outline:active {
            background: #DBE8EE;
            transform: translateY(0);
        }
        .btn-sm {
            padding: 6px 16px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 16px;
        }
        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            background: linear-gradient(140deg, #214B5E 0%, #2E6478 55%, #3A7D92 100%);
            padding: 72px 0;
            color: #fff;
            overflow: hidden;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            opacity: .22;
            z-index: 0;
        }
        .category-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(31, 64, 78, .85) 0%, rgba(36, 74, 91, .62) 60%, rgba(48, 96, 115, .35) 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 40px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .3);
            border-radius: 30px;
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i {
            color: #E9C88C;
        }
        .category-hero h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 14px;
            color: #fff;
        }
        .category-hero h1 span {
            color: #E9C88C;
        }
        .category-hero .hero-lead {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .88);
            max-width: 480px;
            margin-bottom: 24px;
        }
        .hero-search {
            display: flex;
            background: rgba(255, 255, 255, .95);
            border-radius: 40px;
            padding: 6px 6px 6px 18px;
            max-width: 460px;
            align-items: center;
            gap: 8px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, .12);
        }
        .hero-search i {
            color: var(--text-mute);
            font-size: 14px;
        }
        .hero-search input {
            flex: 1;
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text);
            min-width: 0;
        }
        .hero-search input::placeholder {
            color: var(--text-mute);
        }
        .hero-search .btn {
            border-radius: 30px;
            padding: 8px 20px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 18px;
        }
        .hero-tags a {
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: 20px;
            padding: 4px 14px;
            font-size: 13px;
            color: rgba(255, 255, 255, .92);
            transition: background .2s ease, color .2s ease;
        }
        .hero-tags a:hover {
            background: rgba(255, 255, 255, .25);
            color: #fff;
        }
        .hero-rank {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .24);
            border-radius: 20px;
            padding: 24px;
            backdrop-filter: blur(8px);
        }
        .hero-rank h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-rank h4 i {
            color: #E9C88C;
        }
        .hero-rank ul li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            font-size: 14px;
            color: rgba(255, 255, 255, .92);
        }
        .hero-rank ul li:last-child {
            border-bottom: none;
        }
        .rank-no {
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: rgba(255, 255, 255, .14);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .rank-no.hot {
            background: rgba(200, 137, 74, .75);
        }
        .rank-name {
            flex: 1;
        }
        .rank-mark {
            font-size: 12px;
            color: rgba(255, 255, 255, .6);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .rank-mark i {
            font-size: 11px;
        }
        /* ===== Feature Cards ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            transition: transform .3s ease, box-shadow .3s ease;
            display: flex;
            flex-direction: column;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card .feature-img {
            height: 190px;
            overflow: hidden;
            position: relative;
        }
        .feature-card .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .feature-card:hover .feature-img img {
            transform: scale(1.04);
        }
        .feature-card .feature-img .tag {
            position: absolute;
            top: 14px;
            left: 14px;
        }
        .feature-card .feature-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .feature-card .feature-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
            color: var(--text);
        }
        .feature-card .feature-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            flex: 1;
        }
        .feature-card .feature-link {
            margin-top: 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .feature-card .feature-link:hover {
            color: var(--accent);
        }
        .feature-card .feature-link i {
            font-size: 12px;
            transition: transform .2s ease;
        }
        .feature-card .feature-link:hover i {
            transform: translateX(4px);
        }
        /* ===== Tag ===== */
        .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            line-height: 1.5;
            letter-spacing: .2px;
        }
        .tag-accent {
            background: var(--accent-light);
            color: #A96B37;
        }
        .tag-green {
            background: var(--green-light);
            color: #5C7A59;
        }
        /* ===== Stats ===== */
        .stats-band {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 44px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            position: relative;
            padding: 8px 16px;
        }
        .stat-item:not(:last-child)::after {
            content: "";
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 48px;
            background: var(--border);
        }
        .stat-item .num {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-item .label {
            font-size: 13px;
            color: var(--text-sub);
        }
        /* ===== Rank List ===== */
        .rank-section {
            background: var(--bg);
        }
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 18px 22px;
            margin-bottom: 12px;
            transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
        }
        .rank-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #CFE0E8;
        }
        .rank-item .rank-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--accent);
            font-family: Georgia, serif;
            min-width: 44px;
            text-align: center;
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-num {
            color: #D9822B;
        }
        .rank-item:nth-child(2) .rank-num {
            color: #C8894A;
        }
        .rank-item:nth-child(3) .rank-num {
            color: #B58A5A;
        }
        .rank-main {
            flex: 1;
            min-width: 0;
        }
        .rank-main .rank-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 2px;
            line-height: 1.4;
        }
        .rank-main .rank-summary {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .rank-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .rank-meta .time {
            font-size: 13px;
            color: var(--text-mute);
            white-space: nowrap;
        }
        /* ===== Plan Cards ===== */
        .plan-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .plan-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            position: relative;
            overflow: hidden;
            transition: box-shadow .3s ease, transform .3s ease;
        }
        .plan-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .plan-card .plan-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 18px;
        }
        .plan-card .plan-icon.tea {
            background: var(--primary-light);
            color: var(--primary);
        }
        .plan-card .plan-icon.sauna {
            background: var(--accent-light);
            color: var(--accent);
        }
        .plan-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .plan-card .plan-desc {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 16px;
        }
        .plan-card ul {
            list-style: none;
        }
        .plan-card ul li {
            padding: 6px 0;
            font-size: 14px;
            color: var(--text);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .plan-card ul li i {
            color: var(--green);
            font-size: 13px;
            margin-top: 4px;
            flex-shrink: 0;
        }
        .plan-card .plan-tag {
            position: absolute;
            top: 18px;
            right: 18px;
        }
        /* ===== FAQ ===== */
        .faq-section {
            background: var(--white);
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 48px;
        }
        .faq-intro h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .faq-intro p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--white);
            transition: border-color .25s ease, box-shadow .25s ease;
        }
        .faq-item.open {
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(91, 143, 168, .12);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            text-align: left;
            background: none;
            border: none;
            cursor: pointer;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            outline: none;
            transition: background .2s ease;
        }
        .faq-question:hover {
            background: var(--bg);
        }
        .faq-question:focus-visible {
            outline: 2px solid rgba(91, 143, 168, .3);
            outline-offset: -2px;
        }
        .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: transform .3s ease, background .3s ease, color .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 .35s ease, padding .3s ease, opacity .3s ease;
            opacity: 0;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 600px;
            opacity: 1;
            padding-bottom: 18px;
        }
        .faq-answer p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-sub);
        }
        /* ===== CTA & Form ===== */
        .cta-section {
            background: linear-gradient(140deg, #EAF2F6 0%, #F5F8FA 60%, #EDF4F7 100%);
            border-top: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .cta-box {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            box-shadow: var(--shadow-card);
        }
        .cta-left h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .cta-left p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .cta-left .cta-points {
            margin-bottom: 24px;
        }
        .cta-left .cta-points li {
            padding: 5px 0;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .cta-left .cta-points li i {
            color: var(--green);
            font-size: 13px;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 10px 16px;
            font-size: 14px;
            color: var(--text);
            background: var(--bg);
            outline: none;
            transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
            font-family: inherit;
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-mute);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(91, 143, 168, .15);
            background: #fff;
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }
        .form-msg {
            display: none;
            font-size: 14px;
            padding: 10px 14px;
            border-radius: 8px;
            background: var(--green-light);
            color: #4F6D4D;
        }
        /* ===== More Categories ===== */
        .cats-band {
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 32px 0;
        }
        .cats-wrap {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .cats-wrap .cats-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-sub);
            margin-right: 4px;
        }
        .cat-pill {
            display: inline-block;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 30px;
            padding: 6px 18px;
            font-size: 13px;
            color: var(--text-sub);
            transition: all .2s ease;
        }
        .cat-pill:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }
        /* ===== Footer ===== */
        .site-footer {
            background: #1F2A38;
            color: rgba(255, 255, 255, .7);
            padding-top: 56px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 1fr 0.8fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .55);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            padding: 4px 0;
            transition: color .2s ease, padding-left .2s ease;
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-contact p {
            font-size: 14px;
            padding: 3px 0;
            color: rgba(255, 255, 255, .6);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact p i {
            width: 18px;
            color: var(--primary);
        }
        .footer-qr {
            width: 88px;
            height: 88px;
            background: rgba(255, 255, 255, .08);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 36px;
            color: rgba(255, 255, 255, .4);
            border: 1px dashed rgba(255, 255, 255, .2);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 18px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .5);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .category-hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 44px 0;
            }
            .header-search {
                display: none;
            }
            .header-top {
                padding-top: 10px;
                padding-bottom: 10px;
            }
            .category-hero {
                padding: 48px 0;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .hero-rank {
                padding: 18px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stat-item:not(:last-child)::after {
                display: none;
            }
            .plan-grid {
                grid-template-columns: 1fr;
            }
            .cta-box {
                grid-template-columns: 1fr;
                padding: 32px 24px;
                gap: 28px;
            }
            .rank-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 14px 16px;
            }
            .rank-main {
                order: 2;
                flex-basis: calc(100% - 58px);
            }
            .rank-meta {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                padding-left: 62px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .faq-layout {
                grid-template-columns: 1fr;
            }
            .nav-trend {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-tags {
                gap: 6px;
            }
            .hero-tags a {
                font-size: 12px;
                padding: 3px 10px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .category-hero .hero-lead {
                font-size: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .rank-item .rank-num {
                font-size: 20px;
                min-width: 32px;
            }
            .rank-main .rank-title {
                font-size: 15px;
            }
            .plan-card {
                padding: 24px 20px;
            }
            .cta-box {
                padding: 24px 18px;
            }
            .footer-contact p {
                font-size: 13px;
            }
        }