/* roulang page: index */
:root {
            --color-primary: #1E7FBF;
            --color-primary-dark: #155F91;
            --color-primary-soft: #E8F2FB;
            --color-bg: #F6F9FD;
            --color-surface: #FFFFFF;
            --color-ink: #152433;
            --color-muted: #5B6B7C;
            --color-line: #DCE6EF;
            --color-accent: #10B981;
            --color-warn: #F97316;
            --color-warn-soft: #FFF4EB;
            --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.10);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-badge: 999px;
            --space-section: 80px;
            --space-card-pad: 24px;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-ink);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(30, 127, 191, 0.35);
            outline-offset: 2px;
        }

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

        /* ========== 顶部信息条 ========== */
        .topbar {
            background-color: #152433;
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            min-height: 38px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 40;
        }

        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }

        .topbar-left {
            display: flex;
            align-items: center;
            gap: 18px;
            min-width: 0;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        .topbar-left span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .topbar-left .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent);
            flex-shrink: 0;
        }

        .topbar-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .topbar-right a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .topbar-right a:hover {
            color: #FFFFFF;
        }

        /* ========== 主导航 ========== */
        .main-header {
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
            position: sticky;
            top: 0;
            z-index: 30;
            box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
        }

        .main-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background-color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }

        .main-nav li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 15px;
            color: var(--color-ink);
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
        }

        .main-nav li a:hover {
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
        }

        .main-nav li a.active {
            color: var(--color-primary);
            background-color: transparent;
            font-weight: 600;
        }

        .main-nav li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--color-ink);
            font-size: 26px;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            transition: background-color 0.2s ease;
        }

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

        /* ========== Hero ========== */
        .hero-section {
            position: relative;
            background-color: #EDF4FB;
            overflow: hidden;
            padding: 72px 0 64px;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/6e70ead02bafa6d5.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.38;
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(112deg, rgba(237, 244, 251, 0.95) 30%, rgba(237, 244, 251, 0.68) 70%, rgba(237, 244, 251, 0.45) 100%);
            z-index: 2;
        }

        .hero-section .container {
            position: relative;
            z-index: 3;
            width: 100%;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            max-width: 620px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: rgba(30, 127, 191, 0.1);
            color: var(--color-primary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            border: 1px solid rgba(30, 127, 191, 0.25);
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }

        .hero-badge .pulse {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--color-accent);
            animation: pulse 1.8s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.3); }
        }

        .hero-content h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-ink);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.85;
            color: #3E5062;
            margin-bottom: 30px;
            max-width: 560px;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-primary);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 15.5px;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--color-primary);
            transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
            text-align: center;
            line-height: 1.4;
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            background-color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
            box-shadow: 0 8px 22px rgba(30, 127, 191, 0.28);
        }

        .btn-primary:active {
            transform: translateY(1px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 15.5px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--color-primary);
            transition: background-color 0.2s ease, color 0.2s ease, transform 0.1s ease;
            text-align: center;
            line-height: 1.4;
            letter-spacing: 0.3px;
        }

        .btn-secondary:hover {
            background-color: var(--color-primary-soft);
            color: var(--color-primary-dark);
        }

        .btn-secondary:active {
            transform: translateY(1px);
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-data-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px 24px;
            width: 100%;
            max-width: 400px;
            position: relative;
            z-index: 2;
        }

        .hero-data-card .label {
            font-size: 13px;
            color: var(--color-muted);
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .hero-data-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--color-line);
            gap: 12px;
        }

        .hero-data-row:last-child {
            border-bottom: none;
        }

        .hero-data-row .team {
            font-weight: 600;
            font-size: 15px;
            color: var(--color-ink);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-data-row .team .tag {
            display: inline-block;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--color-primary-soft);
            color: var(--color-primary-dark);
            font-size: 11px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .hero-data-row .score {
            font-weight: 700;
            font-size: 18px;
            color: var(--color-primary-dark);
        }

        .hero-data-row .info {
            font-size: 13px;
            color: var(--color-muted);
            text-align: right;
        }

        /* ========== 通用板块 ========== */
        .section {
            padding: var(--space-section) 0;
        }

        .section-alt {
            background-color: var(--color-surface);
        }

        .section-header {
            margin-bottom: 42px;
            max-width: 720px;
        }

        .section-header.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 0.8px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--color-ink);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-muted);
            margin-bottom: 0;
        }

        /* ========== 顶部信任数据条 ========== */
        .trust-strip {
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
            padding: 22px 0;
        }

        .trust-strip .container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            align-items: center;
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 12px;
            border-right: 1px solid var(--color-line);
        }

        .trust-item:last-child {
            border-right: none;
        }

        .trust-item .icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .trust-item .text {
            font-size: 14px;
            line-height: 1.5;
        }

        .trust-item .text strong {
            display: block;
            font-size: 16px;
            color: var(--color-ink);
            font-weight: 700;
        }

        .trust-item .text span {
            color: var(--color-muted);
        }

        /* ========== 痛点卡片区 ========== */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .pain-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 24px 26px;
            box-shadow: var(--shadow-card);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
        }

        .pain-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
            transform: translateY(-2px);
        }

        .pain-card .line {
            width: 4px;
            height: 48px;
            background-color: var(--color-primary);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .pain-card .body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .pain-card .body p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-muted);
            margin: 0;
        }

        /* ========== 解决方案 ========== */
        .solution-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .solution-text h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--color-ink);
            line-height: 1.45;
        }

        .solution-text p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-muted);
            margin-bottom: 18px;
        }

        .solution-text ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .solution-text ul li {
            font-size: 15.5px;
            line-height: 1.65;
            color: var(--color-ink);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .solution-text ul li::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: var(--color-primary);
            margin-top: 9px;
            flex-shrink: 0;
        }

        .solution-image {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 16 / 10;
        }

        .solution-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== 方法步骤 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .step-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            box-shadow: var(--shadow-card);
            position: relative;
            transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
        }

        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
            transform: translateY(-2px);
        }

        .step-num {
            font-size: 38px;
            font-weight: 700;
            color: var(--color-primary-soft);
            line-height: 1;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .step-card h3 {
            font-size: 17.5px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .step-card p {
            font-size: 14.5px;
            line-height: 1.75;
            color: var(--color-muted);
            margin: 0;
        }

        .step-arrow {
            position: absolute;
            top: 50%;
            right: -16px;
            transform: translateY(-50%);
            color: var(--color-primary);
            font-size: 22px;
            font-weight: 700;
            z-index: 2;
        }

        .step-card:last-child .step-arrow {
            display: none;
        }

        /* ========== 成果数据 ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 24px 22px;
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: box-shadow 0.25s ease, transform 0.25s ease;
        }

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

        .metric-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary-dark);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }

        .metric-label {
            font-size: 14.5px;
            color: var(--color-muted);
            font-weight: 500;
        }

        .metric-card.accent .metric-value {
            color: var(--color-accent);
        }

        /* ========== 品牌介绍 ========== */
        .brand-story {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
        }

        .brand-story .image-wrap {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 16 / 10;
        }

        .brand-story .image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .brand-story .content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-ink);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .brand-story .content p {
            font-size: 15.5px;
            line-height: 1.9;
            color: var(--color-muted);
            margin-bottom: 12px;
        }

        /* ========== 用户证言 ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 24px 26px;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.25s ease, transform 0.25s ease;
        }

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

        .testimonial-card .quote {
            font-size: 15.5px;
            line-height: 1.85;
            color: var(--color-ink);
            margin-bottom: 16px;
            position: relative;
            padding-left: 18px;
        }

        .testimonial-card .quote::before {
            content: '\201C';
            position: absolute;
            left: 0;
            top: -4px;
            font-size: 32px;
            color: var(--color-primary);
            font-weight: 700;
            line-height: 1;
        }

        .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-card .author .avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background-color: var(--color-primary-soft);
            color: var(--color-primary-dark);
            font-weight: 700;
            font-size: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .testimonial-card .author .name {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-ink);
        }

        .testimonial-card .author .role {
            font-size: 13px;
            color: var(--color-muted);
        }

        /* ========== 适用人群 ========== */
        .audience-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .audience-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 12px;
            padding: 16px 20px;
            box-shadow: 0 4px 14px rgba(15, 23, 42, 0.03);
            transition: border-color 0.2s ease, box-shadow 0.25s ease;
        }

        .audience-item:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card);
        }

        .audience-item .aud-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background-color: var(--color-primary-soft);
            color: var(--color-primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .audience-item .aud-text h3 {
            font-size: 16.5px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 2px;
            line-height: 1.4;
        }

        .audience-item .aud-text p {
            font-size: 14.5px;
            color: var(--color-muted);
            margin: 0;
        }

        /* ========== 新闻中心 ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            display: grid;
            grid-template-columns: 240px 1fr auto;
            gap: 20px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            box-shadow: 0 4px 14px rgba(15, 23, 42, 0.03);
            transition: border-color 0.2s ease, box-shadow 0.25s ease;
            align-items: center;
        }

        .news-item:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card);
        }

        .news-item .news-cover {
            border-radius: 10px;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            width: 100%;
        }

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

        .news-item .news-body {
            min-width: 0;
        }

        .news-item .news-date {
            font-size: 12.5px;
            color: var(--color-muted);
            letter-spacing: 0.4px;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .news-item .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .news-item .news-summary {
            font-size: 14.5px;
            line-height: 1.75;
            color: var(--color-muted);
            margin: 0;
        }

        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border: 1.5px solid var(--color-primary);
            border-radius: 8px;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 14px;
            transition: background-color 0.2s ease, color 0.2s ease;
            background-color: transparent;
            flex-shrink: 0;
            white-space: nowrap;
        }

        .btn-read-more:hover {
            background-color: var(--color-primary);
            color: #FFFFFF;
        }

        /* ========== 数据指标/竞猜维度 ========== */
        .dimension-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .dimension-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 12px;
            padding: 18px 20px;
            box-shadow: 0 4px 14px rgba(15, 23, 42, 0.03);
            transition: border-color 0.2s ease, box-shadow 0.25s ease;
        }

        .dimension-item:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card);
        }

        .dimension-item .d-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background-color: var(--color-primary-soft);
            color: var(--color-primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .dimension-item .d-text h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .dimension-item .d-text p {
            font-size: 14px;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== 专题入口 ========== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .topic-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: center;
            gap: 18px;
            transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
            transform: translateY(-2px);
        }

        .topic-card .topic-num {
            font-size: 42px;
            font-weight: 700;
            color: var(--color-primary-soft);
            line-height: 1;
            flex-shrink: 0;
            min-width: 50px;
            text-align: center;
        }

        .topic-card .topic-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .topic-card .topic-body p {
            font-size: 14.5px;
            line-height: 1.7;
            color: var(--color-muted);
            margin: 0;
        }

        .topic-card .topic-link {
            margin-left: auto;
            flex-shrink: 0;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 14px rgba(15, 23, 42, 0.03);
            transition: border-color 0.2s ease, box-shadow 0.25s ease;
        }

        .faq-item:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--color-ink);
            line-height: 1.5;
            background-color: var(--color-surface);
            transition: background-color 0.2s ease;
            user-select: none;
        }

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

        .faq-question .faq-toggle {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
            transition: transform 0.25s ease, background-color 0.2s ease;
        }

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

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

        .faq-item.open .faq-answer {
            max-height: 500px;
        }

        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-muted);
            border-left: 3px solid var(--color-primary);
            margin-left: 22px;
            margin-right: 22px;
            margin-bottom: 4px;
        }

        /* ========== CTA ========== */
        .cta-section {
            background-color: var(--color-primary-soft);
            padding: 56px 0;
        }

        .cta-box {
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-box h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-ink);
            margin-bottom: 14px;
            line-height: 1.45;
        }

        .cta-box p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-muted);
            margin-bottom: 26px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
        }

        .cta-form input[type="text"],
        .cta-form input[type="email"] {
            flex: 1;
            padding: 13px 18px;
            border: 1.5px solid var(--color-line);
            border-radius: 10px;
            font-size: 15px;
            color: var(--color-ink);
            background-color: var(--color-surface);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            min-width: 0;
        }

        .cta-form input[type="text"]:focus,
        .cta-form input[type="email"]:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(30, 127, 191, 0.15);
            outline: none;
        }

        /* ========== 免责 ========== */
        .disclaimer-section {
            background-color: #F0F4F8;
            padding: 28px 0;
        }

        .disclaimer-box {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
            font-size: 13px;
            line-height: 1.8;
            color: var(--color-muted);
        }

        .disclaimer-box .warn-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--color-warn-soft);
            color: var(--color-warn);
            margin-bottom: 8px;
            font-size: 14px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: #152433;
            color: rgba(255, 255, 255, 0.72);
            padding: 48px 0 28px;
        }

        .site-footer .container {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
        }

        .site-footer .footer-brand .logo {
            color: #FFFFFF;
            font-size: 20px;
            margin-bottom: 12px;
            display: inline-flex;
        }

        .site-footer .footer-brand .logo .logo-icon {
            background-color: var(--color-primary);
            font-size: 16px;
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.62);
            margin-bottom: 0;
            max-width: 300px;
        }

        .site-footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .site-footer ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.62);
            transition: color 0.2s ease;
        }

        .site-footer ul li a:hover {
            color: #FFFFFF;
        }

        .site-footer .footer-risk {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.48);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 32px;
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.52);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.52);
            font-size: 13px;
        }

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

        .footer-bottom .right-links {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .hero-visual {
                justify-content: flex-start;
            }

            .solution-layout,
            .brand-story {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .step-arrow {
                display: none;
            }

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

            .trust-strip .container {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .trust-item {
                border-right: none;
                border-bottom: 1px solid var(--color-line);
                padding: 10px;
            }

            .trust-item:last-child {
                border-bottom: none;
            }

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

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

        @media (max-width: 768px) {
            :root {
                --space-section: 56px;
            }

            .topbar-right {
                display: none;
            }

            .main-header .container {
                min-height: 62px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 62px;
                left: 0;
                right: 0;
                bottom: 0;
                background-color: var(--color-surface);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 20px 24px;
                transform: translateX(-100%);
                transition: transform 0.3s ease;
                z-index: 20;
                overflow-y: auto;
                border-top: 1px solid var(--color-line);
            }

            .main-nav.open {
                transform: translateX(0);
            }

            .main-nav li a {
                padding: 14px 16px;
                font-size: 16px;
                border-radius: 10px;
                width: 100%;
            }

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

            .main-nav li a.active {
                background-color: var(--color-primary-soft);
            }

            .hero-section {
                padding: 48px 0 40px;
                min-height: auto;
            }

            .hero-content h1 {
                font-size: 28px;
                line-height: 1.45;
            }

            .hero-subtitle {
                font-size: 15.5px;
                line-height: 1.8;
            }

            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }

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

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

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .metric-value {
                font-size: 26px;
            }

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

            .news-item {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .news-item .news-cover {
                aspect-ratio: 16 / 9;
            }

            .btn-read-more {
                width: 100%;
                justify-content: center;
            }

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

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

            .cta-form {
                flex-direction: column;
            }

            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .section-title {
                font-size: 23px;
            }
        }

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

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

            .trust-strip .container {
                grid-template-columns: 1fr;
            }

            .hero-content h1 {
                font-size: 24px;
            }

            .section-title {
                font-size: 21px;
            }

            .hero-data-card {
                padding: 20px 16px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1E7FBF;
            --color-primary-dark: #155F91;
            --color-primary-soft: #E8F2FB;
            --color-bg: #F6F9FD;
            --color-surface: #FFFFFF;
            --color-ink: #152433;
            --color-muted: #5B6B7C;
            --color-line: #DCE6EF;
            --color-accent: #10B981;
            --color-warn: #F97316;
            --color-warn-soft: #FFF4EB;
            --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.10);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-badge: 999px;
            --space-section: 80px;
            --space-card-pad: 24px;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        @media (max-width: 640px) {
            :root {
                --space-section: 56px;
            }
        }

        html {
            scroll-behavior: smooth;
            box-sizing: border-box;
        }

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

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

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

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(30, 127, 191, 0.35);
            outline-offset: 2px;
        }

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

        /* ========== 顶部信息条 ========== */
        .topbar {
            background-color: #152433;
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            min-height: 38px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 40;
        }

        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }

        .topbar-left {
            display: flex;
            align-items: center;
            gap: 18px;
            min-width: 0;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        .topbar-left span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .topbar-left .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent);
            flex-shrink: 0;
        }

        .topbar-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .topbar-right a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .topbar-right a:hover {
            color: #FFFFFF;
        }

        @media (max-width: 768px) {
            .topbar-right {
                display: none;
            }
        }

        /* ========== 主导航 ========== */
        .main-header {
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
            position: sticky;
            top: 0;
            z-index: 30;
            box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
        }

        .main-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 20px;
            position: relative;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background-color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .main-nav li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 15px;
            color: var(--color-ink);
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
        }

        .main-nav li a:hover {
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
        }

        .main-nav li a.active {
            color: var(--color-primary);
            background-color: transparent;
            font-weight: 600;
        }

        .main-nav li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            color: var(--color-ink);
            font-size: 26px;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            line-height: 1;
        }

        @media (max-width: 768px) {
            .main-header .container {
                flex-wrap: wrap;
                padding-top: 8px;
                padding-bottom: 8px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                align-items: stretch;
                width: 100%;
                gap: 2px;
                padding-bottom: 12px;
                border-top: 1px solid var(--color-line);
                padding-top: 10px;
            }

            .main-nav.is-open {
                display: flex;
            }

            .main-nav li a {
                padding: 10px 14px;
                border-radius: 6px;
                width: 100%;
            }

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

        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
            padding: 14px 0;
        }

        .breadcrumb {
            font-size: 14px;
            color: var(--color-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .separator {
            color: var(--color-line);
            user-select: none;
        }

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

        /* ========== 分类页头部 ========== */
        .category-header {
            padding: 48px 0 32px;
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
        }

        .category-header h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-ink);
            margin: 0 0 12px;
            letter-spacing: 0.5px;
        }

        .category-header .category-summary {
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-muted);
            max-width: 820px;
            margin: 0;
        }

        @media (max-width: 640px) {
            .category-header {
                padding: 32px 0 24px;
            }

            .category-header h1 {
                font-size: 24px;
            }

            .category-header .category-summary {
                font-size: 15px;
            }
        }

        /* ========== 通用板块样式 ========== */
        .section {
            padding: var(--space-section) 0;
        }

        .section-alt {
            background-color: var(--color-surface);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-ink);
            margin: 0 0 10px;
            letter-spacing: 0.3px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.7;
            max-width: 700px;
        }

        @media (max-width: 640px) {
            .section-header h2 {
                font-size: 22px;
            }
        }

        /* ========== 卡片样式 ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 28px;
        }

        @media (max-width: 768px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        .info-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .info-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }

        .info-card .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background-color: var(--color-primary-soft);
        }

        .info-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .info-card:hover .card-image img {
            transform: scale(1.03);
        }

        .info-card .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .info-card .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }

        .info-card .card-date {
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 8px;
        }

        .info-card h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--color-ink);
            margin: 0 0 10px;
        }

        .info-card .card-summary {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-muted);
            margin: 0 0 16px;
            flex: 1;
        }

        .info-card .read-more {
            align-self: flex-start;
        }

        /* ========== 徽章与标签 ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 500;
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
            line-height: 1.5;
            white-space: nowrap;
        }

        .badge-warn {
            background-color: var(--color-warn-soft);
            color: var(--color-warn);
        }

        .badge-accent {
            background-color: #E8FBF3;
            color: var(--color-accent);
        }

        /* ========== 按钮样式 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: all 0.25s ease;
            line-height: 1.4;
            letter-spacing: 0.2px;
            min-height: 44px;
        }

        .btn:active {
            transform: translateY(1px);
        }

        .btn-primary {
            background-color: var(--color-primary);
            color: #FFFFFF;
            border: 1px solid var(--color-primary);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
        }

        .btn-outline {
            background-color: var(--color-surface);
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
        }

        .btn-outline:hover,
        .btn-outline:focus {
            background-color: var(--color-primary-soft);
            color: var(--color-primary-dark);
            border-color: var(--color-primary);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            min-height: 36px;
            border-radius: 8px;
        }

        /* ========== 数据指标条 ========== */
        .metrics-bar {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px 32px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px 32px;
        }

        .metric-item {
            text-align: center;
            padding: 8px 0;
            position: relative;
        }

        .metric-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: -16px;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 36px;
            background-color: var(--color-line);
        }

        .metric-item .metric-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }

        .metric-item .metric-label {
            font-size: 13px;
            color: var(--color-muted);
            margin-top: 6px;
            line-height: 1.4;
        }

        @media (max-width: 768px) {
            .metrics-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 20px;
                gap: 20px;
            }

            .metric-item:not(:last-child)::after {
                display: none;
            }

            .metric-item .metric-value {
                font-size: 26px;
            }
        }

        @media (max-width: 480px) {
            .metrics-bar {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }

        /* ========== 热门标签列表 ========== */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            padding: 8px 0;
        }

        .tags-cloud .tag-item {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-badge);
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            color: var(--color-ink);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.25s ease;
            cursor: default;
        }

        .tags-cloud .tag-item:hover {
            border-color: var(--color-primary);
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }

        .tags-cloud .tag-item.tag-highlight {
            background-color: var(--color-primary);
            color: #FFFFFF;
            border-color: var(--color-primary);
        }

        /* ========== 观察要点列表 ========== */
        .observation-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .observation-list li {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 12px;
            padding: 18px 20px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .observation-list li:hover {
            box-shadow: var(--shadow-card);
            border-color: var(--color-primary);
        }

        .observation-list .obs-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .observation-list .obs-text {
            font-size: 14px;
            line-height: 1.6;
            color: var(--color-ink);
        }

        .observation-list .obs-text strong {
            display: block;
            font-size: 15px;
            color: var(--color-ink);
            margin-bottom: 4px;
            font-weight: 600;
        }

        /* ========== CTA 区块 ========== */
        .cta-section {
            padding: 56px 0;
            background-color: var(--color-primary-soft);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }

        .cta-box {
            background-color: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            border: 1px solid var(--color-line);
        }

        .cta-box .cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 8px;
            line-height: 1.3;
        }

        .cta-box .cta-text p {
            font-size: 15px;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.7;
        }

        .cta-box .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .cta-box {
                padding: 28px 24px;
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }

            .cta-box .cta-text h2 {
                font-size: 20px;
            }

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

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: #152433;
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
            font-size: 14px;
            line-height: 1.7;
        }

        .site-footer .container:first-child {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 36px;
        }

        .site-footer h4 {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 16px;
            letter-spacing: 0.3px;
        }

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

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            transition: color 0.2s ease;
        }

        .site-footer ul li a:hover {
            color: var(--color-primary);
        }

        .footer-brand .logo {
            color: #FFFFFF;
            font-size: 20px;
            margin-bottom: 12px;
        }

        .footer-brand .logo-icon {
            background-color: var(--color-primary);
        }

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

        .footer-brand p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13.5px;
            line-height: 1.8;
            margin: 0;
        }

        .footer-risk {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13.5px;
            line-height: 1.8;
            margin: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom .right-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-bottom .right-links a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 13px;
            transition: color 0.2s ease;
        }

        .footer-bottom .right-links a:hover {
            color: var(--color-primary);
        }

        @media (max-width: 768px) {
            .site-footer .container:first-child {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 480px) {
            .site-footer .container:first-child {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .site-footer {
                padding-top: 40px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

.info-card-hidden {
            display: none;
        }

/* roulang page: category2 */
:root {
            --color-primary: #1E7FBF;
            --color-primary-dark: #155F91;
            --color-primary-soft: #E8F2FB;
            --color-bg: #F6F9FD;
            --color-surface: #FFFFFF;
            --color-ink: #152433;
            --color-muted: #5B6B7C;
            --color-line: #DCE6EF;
            --color-accent: #10B981;
            --color-warn: #F97316;
            --color-warn-soft: #FFF4EB;
            --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.10);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-badge: 999px;
            --space-section: 80px;
            --space-card-pad: 24px;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 56px;
            }
        }

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(30, 127, 191, 0.35);
            outline-offset: 2px;
        }

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

        /* ========== 顶部信息条 ========== */
        .topbar {
            background-color: #152433;
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            min-height: 38px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 40;
        }

        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }

        .topbar-left {
            display: flex;
            align-items: center;
            gap: 18px;
            min-width: 0;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        .topbar-left span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .topbar-left .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent);
            flex-shrink: 0;
        }

        .topbar-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .topbar-right a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .topbar-right a:hover {
            color: #FFFFFF;
        }

        /* ========== 主导航 ========== */
        .main-header {
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
            position: sticky;
            top: 0;
            z-index: 30;
            box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
        }

        .main-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background-color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
            box-shadow: 0 4px 10px rgba(30, 127, 191, 0.25);
        }

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

        .main-nav li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 15px;
            color: var(--color-ink);
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
            white-space: nowrap;
        }

        .main-nav li a:hover {
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
        }

        .main-nav li a.active {
            color: var(--color-primary);
            background-color: transparent;
            font-weight: 600;
        }

        .main-nav li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--color-ink);
            font-size: 26px;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background-color 0.2s ease;
        }

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

        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            padding: 20px 0 0;
            background-color: var(--color-bg);
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13.5px;
            color: var(--color-muted);
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .breadcrumb-nav li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-nav li:not(:last-child)::after {
            content: '/';
            color: var(--color-muted);
            opacity: 0.6;
            margin-left: 4px;
        }

        .breadcrumb-nav a {
            color: var(--color-muted);
            transition: color 0.2s ease;
        }

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

        .breadcrumb-nav .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* ========== 分类页标题区 ========== */
        .page-title-section {
            padding: 32px 0 12px;
            background-color: var(--color-bg);
        }

        .page-title-section h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-ink);
            line-height: 1.3;
            margin: 0 0 10px;
            letter-spacing: 0.5px;
        }

        .page-title-section .subtitle-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .page-title-section .subtitle-bar .badge-tag {
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
            font-size: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        .page-title-section .subtitle-bar .update-note {
            font-size: 13px;
            color: var(--color-muted);
        }

        /* ========== 分类说明摘要区 ========== */
        .category-summary {
            padding: 18px 0 28px;
            background-color: var(--color-bg);
        }

        .category-summary .summary-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-left: 4px solid var(--color-primary);
            border-radius: 12px;
            padding: 18px 22px;
            box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-ink);
            max-width: 100%;
        }

        .category-summary .summary-card p {
            margin: 0;
        }

        /* ========== 内容卡片列表 ========== */
        .content-list-section {
            padding: 24px 0 40px;
            background-color: var(--color-bg);
        }

        .content-list-section .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .content-list-section .section-heading h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0;
            line-height: 1.35;
        }

        .content-list-section .section-heading .count-badge {
            font-size: 13px;
            color: var(--color-muted);
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            font-weight: 500;
        }

        .tutorial-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .tutorial-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            display: flex;
            flex-direction: column;
        }

        .tutorial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
        }

        .tutorial-card .card-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: var(--color-primary-soft);
            position: relative;
        }

        .tutorial-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .tutorial-card:hover .card-image img {
            transform: scale(1.04);
        }

        .tutorial-card .card-image .image-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background-color: var(--color-primary);
            color: #FFFFFF;
            font-size: 11.5px;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            font-weight: 600;
            letter-spacing: 0.3px;
            box-shadow: 0 4px 10px rgba(30, 127, 191, 0.3);
        }

        .tutorial-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tutorial-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }

        .tutorial-card .card-meta .date {
            font-size: 12.5px;
            color: var(--color-muted);
        }

        .tutorial-card .card-meta .tag {
            font-size: 11.5px;
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
            padding: 2px 10px;
            border-radius: var(--radius-badge);
            font-weight: 500;
        }

        .tutorial-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-ink);
            line-height: 1.45;
            margin: 0 0 10px;
            letter-spacing: 0.2px;
        }

        .tutorial-card .card-summary {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }

        .tutorial-card .read-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13.5px;
            font-weight: 600;
            color: var(--color-primary);
            background-color: transparent;
            border: 1.5px solid var(--color-primary);
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            transition: all 0.25s ease;
            align-self: flex-start;
            cursor: pointer;
            letter-spacing: 0.3px;
        }

        .tutorial-card .read-more-btn:hover {
            background-color: var(--color-primary);
            color: #FFFFFF;
            border-color: var(--color-primary);
            box-shadow: 0 6px 16px rgba(30, 127, 191, 0.25);
        }

        .tutorial-card .read-more-btn:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .view-more-row {
            margin-top: 28px;
            text-align: center;
        }

        .view-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14.5px;
            font-weight: 600;
            color: var(--color-primary);
            background-color: var(--color-surface);
            border: 1.5px solid var(--color-primary);
            border-radius: var(--radius-btn);
            padding: 12px 32px;
            transition: all 0.25s ease;
            cursor: pointer;
            letter-spacing: 0.3px;
            box-shadow: 0 6px 18px rgba(15, 23, 42, 0.05);
        }

        .view-more-btn:hover {
            background-color: var(--color-primary);
            color: #FFFFFF;
            border-color: var(--color-primary);
            box-shadow: 0 10px 24px rgba(30, 127, 191, 0.25);
        }

        .view-more-btn:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        /* ========== 4步入门步骤板块 ========== */
        .steps-section {
            padding: 48px 0;
            background-color: var(--color-surface);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }

        .steps-section .section-heading {
            margin-bottom: 32px;
        }

        .steps-section .section-heading h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 6px;
            line-height: 1.35;
        }

        .steps-section .section-heading .heading-desc {
            font-size: 14px;
            color: var(--color-muted);
            margin: 0;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-item {
            background-color: var(--color-bg);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            position: relative;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .step-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
            border-color: var(--color-primary);
        }

        .step-item .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--color-primary);
            color: #FFFFFF;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 14px;
            box-shadow: 0 4px 12px rgba(30, 127, 191, 0.3);
            flex-shrink: 0;
        }

        .step-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .step-item p {
            font-size: 13.5px;
            color: var(--color-muted);
            line-height: 1.7;
            margin: 0;
        }

        .step-connector {
            display: none;
        }

        /* ========== 配图说明位板块 ========== */
        .illustrated-section {
            padding: 48px 0;
            background-color: var(--color-bg);
        }

        .illustrated-section .section-heading {
            margin-bottom: 28px;
        }

        .illustrated-section .section-heading h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 6px;
            line-height: 1.35;
        }

        .illustrated-section .section-heading .heading-desc {
            font-size: 14px;
            color: var(--color-muted);
            margin: 0;
        }

        .illustrated-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .illustrated-layout .illustrated-text h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 14px;
            line-height: 1.4;
        }

        .illustrated-layout .illustrated-text p {
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.85;
            margin: 0 0 16px;
        }

        .illustrated-layout .illustrated-text .text-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .illustrated-layout .illustrated-text .text-list li {
            position: relative;
            padding-left: 24px;
            font-size: 14.5px;
            color: var(--color-ink);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .illustrated-layout .illustrated-text .text-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--color-primary);
            box-shadow: 0 0 0 3px var(--color-primary-soft);
        }

        .illustrated-layout .illustrated-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-line);
            box-shadow: var(--shadow-card);
            aspect-ratio: 4 / 3;
        }

        .illustrated-layout .illustrated-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .illustrated-layout .illustrated-image:hover img {
            transform: scale(1.03);
        }

        /* ========== 热门玩法标签板块 ========== */
        .tags-section {
            padding: 40px 0;
            background-color: var(--color-surface);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }

        .tags-section .section-heading {
            margin-bottom: 20px;
        }

        .tags-section .section-heading h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0;
            line-height: 1.35;
        }

        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .tags-cloud .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13.5px;
            font-weight: 500;
            color: var(--color-ink);
            background-color: var(--color-bg);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-badge);
            padding: 8px 18px;
            transition: all 0.25s ease;
            cursor: default;
        }

        .tags-cloud .tag-item:hover {
            background-color: var(--color-primary-soft);
            border-color: var(--color-primary);
            color: var(--color-primary);
            box-shadow: 0 4px 12px rgba(30, 127, 191, 0.15);
        }

        .tags-cloud .tag-item .tag-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-primary);
            flex-shrink: 0;
        }

        /* ========== CTA 区块 ========== */
        .cta-section {
            padding: 56px 0;
            background-color: var(--color-bg);
        }

        .cta-box {
            background-color: var(--color-primary-soft);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            text-align: center;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark), var(--color-primary));
            opacity: 0.6;
        }

        .cta-box h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 10px;
            line-height: 1.4;
        }

        .cta-box .cta-desc {
            font-size: 15px;
            color: var(--color-muted);
            margin: 0 0 24px;
            line-height: 1.7;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .cta-box .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            background-color: var(--color-primary);
            border: 2px solid var(--color-primary);
            border-radius: var(--radius-btn);
            padding: 12px 32px;
            transition: all 0.25s ease;
            cursor: pointer;
            letter-spacing: 0.3px;
            box-shadow: 0 6px 18px rgba(30, 127, 191, 0.28);
        }

        .cta-box .btn-primary:hover {
            background-color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            box-shadow: 0 10px 26px rgba(30, 127, 191, 0.36);
            color: #FFFFFF;
        }

        .cta-box .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .cta-box .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
            background-color: var(--color-surface);
            border: 2px solid var(--color-primary);
            border-radius: var(--radius-btn);
            padding: 12px 32px;
            transition: all 0.25s ease;
            cursor: pointer;
            letter-spacing: 0.3px;
        }

        .cta-box .btn-secondary:hover {
            background-color: var(--color-primary-soft);
            border-color: var(--color-primary-dark);
            color: var(--color-primary-dark);
            box-shadow: 0 6px 18px rgba(30, 127, 191, 0.15);
        }

        .cta-box .btn-secondary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: #152433;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
            font-size: 14px;
        }

        .site-footer .container {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: space-between;
        }

        .site-footer .footer-brand {
            max-width: 320px;
            flex: 1 1 280px;
        }

        .site-footer .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .site-footer .footer-brand .logo:hover {
            color: #FFFFFF;
        }

        .site-footer .footer-brand .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 9px;
            background-color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .site-footer .footer-brand p {
            font-size: 13.5px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
        }

        .site-footer h4 {
            font-size: 14px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 14px;
            letter-spacing: 0.5px;
        }

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

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13.5px;
            transition: color 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .site-footer ul li a:hover {
            color: rgba(255, 255, 255, 1);
        }

        .site-footer .footer-risk {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            margin: 0;
        }

        .site-footer .footer-bottom {
            margin-top: 40px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            width: 100%;
        }

        .site-footer .footer-bottom span {
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.55);
        }

        .site-footer .footer-bottom .right-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-footer .footer-bottom .right-links a {
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.2s ease;
        }

        .site-footer .footer-bottom .right-links a:hover {
            color: #FFFFFF;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .tutorial-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

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

        @media (max-width: 768px) {
            .nav-toggle {
                display: inline-flex;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: var(--color-surface);
                flex-direction: column;
                padding: 12px 24px 20px;
                border-bottom: 1px solid var(--color-line);
                box-shadow: 0 12px 28px rgba(15, 23, 42, 0.1);
                gap: 4px;
                z-index: 50;
            }

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

            .main-nav li {
                width: 100%;
            }

            .main-nav li a {
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 8px;
            }

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

            .main-nav li a.active {
                background-color: var(--color-primary-soft);
            }

            .main-header .container {
                min-height: 64px;
                position: relative;
            }

            .logo {
                font-size: 19px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }

            .topbar-left {
                gap: 10px;
                font-size: 11.5px;
            }

            .topbar-right {
                gap: 8px;
            }

            .topbar-right a {
                font-size: 11.5px;
            }

            .page-title-section h1 {
                font-size: 26px;
            }

            .tutorial-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .step-item {
                padding: 20px 18px;
            }

            .cta-box {
                padding: 32px 22px;
            }

            .cta-box h2 {
                font-size: 20px;
            }

            .illustrated-layout {
                gap: 20px;
            }

            .tutorial-card .card-body {
                padding: 16px 18px 18px;
            }

            .site-footer .container {
                flex-direction: column;
                gap: 24px;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
        }

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

            .page-title-section h1 {
                font-size: 22px;
            }

            .topbar-left {
                font-size: 10.5px;
                gap: 6px;
            }

            .topbar-right {
                display: none;
            }

            .tutorial-card .card-title {
                font-size: 15.5px;
            }

            .tutorial-card .card-summary {
                font-size: 13.5px;
            }

            .tutorial-card .read-more-btn {
                font-size: 12.5px;
                padding: 7px 14px;
            }

            .steps-section .section-heading h2,
            .illustrated-section .section-heading h2,
            .content-list-section .section-heading h2 {
                font-size: 19px;
            }

            .tags-cloud .tag-item {
                font-size: 12px;
                padding: 6px 14px;
            }

            .cta-box .btn-primary,
            .cta-box .btn-secondary {
                font-size: 13.5px;
                padding: 10px 24px;
            }

            .category-summary .summary-card {
                font-size: 13.5px;
                padding: 14px 16px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #1E7FBF;
            --color-primary-dark: #155F91;
            --color-primary-soft: #E8F2FB;
            --color-bg: #F6F9FD;
            --color-surface: #FFFFFF;
            --color-ink: #152433;
            --color-muted: #5B6B7C;
            --color-line: #DCE6EF;
            --color-accent: #10B981;
            --color-warn: #F97316;
            --color-warn-soft: #FFF4EB;
            --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.10);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-badge: 999px;
            --space-section: 80px;
            --space-card-pad: 24px;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-ink);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }
        a:hover,
        a:focus {
            color: var(--color-primary-dark);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(30, 127, 191, 0.35);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 顶部信息条 ========== */
        .topbar {
            background-color: #152433;
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            min-height: 38px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 40;
        }
        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }
        .topbar-left {
            display: flex;
            align-items: center;
            gap: 18px;
            min-width: 0;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }
        .topbar-left span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topbar-left .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent);
            flex-shrink: 0;
        }
        .topbar-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .topbar-right a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .topbar-right a:hover {
            color: #FFFFFF;
        }

        /* ========== 主导航 ========== */
        .main-header {
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
            position: sticky;
            top: 0;
            z-index: 30;
            box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
        }
        .main-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 20px;
            position: relative;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--color-primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background-color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
        }
        .main-nav li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 15px;
            color: var(--color-ink);
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
        }
        .main-nav li a:hover {
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
        }
        .main-nav li a.active {
            color: var(--color-primary);
            background-color: transparent;
            font-weight: 600;
        }
        .main-nav li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--color-line);
            color: var(--color-ink);
            font-size: 24px;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: background-color 0.2s ease, border-color 0.2s ease;
        }
        .nav-toggle:hover {
            background-color: var(--color-primary-soft);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-area {
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
            padding: 12px 0;
            font-size: 13px;
            color: var(--color-muted);
        }
        .breadcrumb-area .container {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb-area a {
            color: var(--color-muted);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .breadcrumb-area a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-area .sep {
            color: var(--color-line);
            font-size: 12px;
        }
        .breadcrumb-area .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        /* ========== 分类标题区 ========== */
        .page-head {
            padding: 48px 0 32px;
            background-color: var(--color-bg);
        }
        .page-head .container {
            max-width: 960px;
        }
        .page-head h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-ink);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .page-head .head-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--color-muted);
            flex-wrap: wrap;
        }
        .page-head .head-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .page-head .head-meta .accent {
            color: var(--color-accent);
            font-weight: 500;
        }

        /* ========== 分类说明摘要 ========== */
        .category-desc {
            padding: 0 0 40px;
            background-color: var(--color-bg);
        }
        .category-desc .container {
            max-width: 960px;
        }
        .desc-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-left: 4px solid var(--color-primary);
            border-radius: 14px;
            padding: 24px 28px;
            font-size: 15.5px;
            line-height: 1.8;
            color: var(--color-ink);
            box-shadow: var(--shadow-card);
        }
        .desc-card .desc-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            background-color: var(--color-primary-soft);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .desc-card p {
            margin: 0;
        }

        /* ========== 数据覆盖条 ========== */
        .stats-strip {
            padding: 0 0 40px;
            background-color: var(--color-bg);
        }
        .stats-strip .container {
            max-width: 960px;
        }
        .stats-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
        }
        .stat-item {
            flex: 1 1 140px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 12px;
            padding: 16px 18px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
        .stat-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .stat-item .stat-num {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 13px;
            color: var(--color-muted);
            margin-top: 4px;
        }

        /* ========== 主卡片列表 ========== */
        .card-list-section {
            padding: 0 0 48px;
            background-color: var(--color-bg);
        }
        .card-list-section .container {
            max-width: 1200px;
        }
        .section-title-row {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .section-title-row h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-ink);
            line-height: 1.3;
            letter-spacing: 0.3px;
            margin: 0;
        }
        .section-title-row .title-note {
            font-size: 13px;
            color: var(--color-muted);
        }
        .article-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .article-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
        }
        .article-card .card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: var(--color-primary-soft);
        }
        .article-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .article-card:hover .card-img img {
            transform: scale(1.03);
        }
        .article-card .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .article-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--color-primary);
            background-color: var(--color-primary-soft);
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.2px;
        }
        .article-card .card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--color-ink);
            margin: 0;
        }
        .article-card .card-title a {
            color: inherit;
        }
        .article-card .card-title a:hover {
            color: var(--color-primary);
        }
        .article-card .card-summary {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }
        .article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: auto;
        }
        .article-card .card-date {
            font-size: 13px;
            color: var(--color-muted);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .btn-read {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            background-color: transparent;
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-btn);
            padding: 7px 14px;
            transition: background-color 0.25s ease, color 0.25s ease, transform 0.15s ease;
        }
        .btn-read:hover {
            background-color: var(--color-primary);
            color: #FFFFFF;
        }
        .btn-read:active {
            transform: translateY(1px);
        }

        /* ========== 支撑板块 A：排名表格 ========== */
        .support-section {
            padding: 48px 0;
            background-color: var(--color-surface);
            border-top: 1px solid var(--color-line);
        }
        .support-section.alt {
            background-color: var(--color-bg);
            border-top: none;
        }
        .support-section .container {
            max-width: 1100px;
        }
        .support-head {
            margin-bottom: 24px;
        }
        .support-head h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-ink);
            line-height: 1.3;
            letter-spacing: 0.3px;
            margin-bottom: 8px;
        }
        .support-head .support-desc {
            font-size: 14px;
            color: var(--color-muted);
            max-width: 680px;
            line-height: 1.7;
        }
        .table-wrap {
            overflow-x: auto;
            border-radius: 14px;
            border: 1px solid var(--color-line);
            box-shadow: var(--shadow-card);
            background-color: var(--color-surface);
        }
        .rank-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 720px;
        }
        .rank-table th {
            background-color: var(--color-primary-soft);
            color: var(--color-ink);
            font-weight: 600;
            text-align: left;
            padding: 14px 18px;
            white-space: nowrap;
            font-size: 13px;
            letter-spacing: 0.2px;
            border-bottom: 2px solid var(--color-line);
        }
        .rank-table td {
            padding: 13px 18px;
            border-bottom: 1px solid var(--color-line);
            color: var(--color-ink);
            white-space: nowrap;
        }
        .rank-table tr:last-child td {
            border-bottom: none;
        }
        .rank-table tbody tr {
            transition: background-color 0.2s ease;
        }
        .rank-table tbody tr:hover {
            background-color: var(--color-primary-soft);
        }
        .rank-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            font-weight: 700;
            font-size: 13px;
            color: var(--color-muted);
            background-color: var(--color-bg);
            border: 1px solid var(--color-line);
        }
        .rank-num.top1 {
            background-color: var(--color-primary);
            color: #FFFFFF;
            border-color: var(--color-primary);
        }
        .rank-num.top2 {
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .rank-num.top3 {
            background-color: var(--color-accent);
            color: #FFFFFF;
            border-color: var(--color-accent);
        }
        .trend-up {
            color: var(--color-accent);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }
        .trend-down {
            color: var(--color-warn);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }
        .trend-flat {
            color: var(--color-muted);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }

        /* ========== 支撑板块 B：指数维度标签 ========== */
        .indicator-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .indicator-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 14px;
            padding: 20px 22px;
            box-shadow: var(--shadow-card);
            transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
        }
        .indicator-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
        }
        .indicator-card .ind-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 12px;
        }
        .indicator-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 6px;
            line-height: 1.35;
        }
        .indicator-card p {
            font-size: 13.5px;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.65;
        }

        /* ========== 支撑板块 C：更新说明 ========== */
        .update-panel {
            background-color: var(--color-primary-soft);
            border: 1px solid var(--color-line);
            border-radius: 16px;
            padding: 28px 32px;
            box-shadow: var(--shadow-card);
        }
        .update-panel .panel-row {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            flex-wrap: wrap;
        }
        .update-panel .panel-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background-color: var(--color-primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }
        .update-panel .panel-content {
            flex: 1;
            min-width: 260px;
        }
        .update-panel h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 8px;
            line-height: 1.35;
        }
        .update-panel p {
            font-size: 14px;
            color: var(--color-ink);
            margin: 0 0 6px;
            line-height: 1.7;
        }
        .update-panel .panel-note {
            font-size: 13px;
            color: var(--color-warn);
            display: inline-flex;
            align-items: flex-start;
            gap: 6px;
            margin-top: 8px;
        }
        .update-panel .panel-note i {
            margin-top: 3px;
        }

        /* ========== CTA 订阅 ========== */
        .cta-section {
            padding: 64px 0;
            background-color: var(--color-bg);
        }
        .cta-section .container {
            max-width: 840px;
        }
        .cta-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 20px;
            padding: 40px 44px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }
        .cta-card h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-ink);
            line-height: 1.3;
            margin: 0 0 12px;
        }
        .cta-card .cta-desc {
            font-size: 15px;
            color: var(--color-muted);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 440px;
            margin: 0 auto;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-form input[type="email"],
        .cta-form input[type="text"] {
            flex: 1 1 220px;
            min-width: 200px;
            height: 46px;
            border: 1px solid var(--color-line);
            border-radius: var(--radius-btn);
            padding: 0 16px;
            font-size: 14px;
            color: var(--color-ink);
            background-color: var(--color-bg);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .cta-form input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(30, 127, 191, 0.15);
            outline: none;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 46px;
            padding: 0 24px;
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            background-color: var(--color-primary);
            border-radius: var(--radius-btn);
            border: 1px solid var(--color-primary);
            transition: background-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background-color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            box-shadow: 0 6px 18px rgba(30, 127, 191, 0.25);
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .cta-risk {
            font-size: 12px;
            color: var(--color-muted);
            margin-top: 16px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: #152433;
            color: rgba(255, 255, 255, 0.78);
            padding: 56px 0 0;
            font-size: 14px;
        }
        .site-footer .container {
            max-width: 1200px;
            padding: 0 24px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-brand .logo {
            font-size: 22px;
            font-weight: 700;
            color: rgba(255, 255, 255, 0.95);
            margin-bottom: 14px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand .logo:hover {
            color: rgba(255, 255, 255, 1);
        }
        .footer-brand p {
            font-size: 13.5px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.68);
            max-width: 360px;
            margin: 0;
        }
        .site-footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.92);
            margin: 0 0 14px;
            letter-spacing: 0.3px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.68);
            font-size: 13.5px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 0.2s ease;
        }
        .site-footer ul li a:hover {
            color: #FFFFFF;
        }
        .footer-risk {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.62);
            line-height: 1.7;
            margin: 0;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            flex-wrap: wrap;
        }
        .footer-bottom .right-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-bottom .right-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
        }
        .footer-bottom .right-links a:hover {
            color: #FFFFFF;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .indicator-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 24px;
            }
            .site-footer .footer-grid > div:last-child {
                grid-column: span 3;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 56px;
            }
            .topbar-right {
                display: none;
            }
            .main-header .container {
                min-height: 64px;
                flex-wrap: wrap;
                position: relative;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: var(--color-surface);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 8px 16px 16px;
                border-bottom: 1px solid var(--color-line);
                box-shadow: 0 20px 30px rgba(15, 23, 42, 0.08);
                z-index: 50;
            }
            .main-nav.is-open {
                display: flex;
            }
            .main-nav li a {
                padding: 12px 14px;
                border-radius: 8px;
                font-size: 15px;
            }
            .main-nav li a.active::after {
                display: none;
            }
            .main-nav li a.active {
                background-color: var(--color-primary-soft);
            }
            .page-head {
                padding: 32px 0 24px;
            }
            .page-head h1 {
                font-size: 26px;
            }
            .category-desc {
                padding-bottom: 28px;
            }
            .desc-card {
                padding: 18px 20px;
                font-size: 14.5px;
            }
            .stats-strip {
                padding-bottom: 28px;
            }
            .stat-item {
                flex: 1 1 120px;
                padding: 14px 12px;
            }
            .stat-item .stat-num {
                font-size: 22px;
            }
            .card-list-section {
                padding-bottom: 32px;
            }
            .section-title-row h2 {
                font-size: 20px;
            }
            .article-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .article-card .card-title {
                font-size: 17px;
            }
            .support-section {
                padding: 36px 0;
            }
            .support-head h2 {
                font-size: 20px;
            }
            .indicator-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .update-panel {
                padding: 20px 22px;
            }
            .cta-section {
                padding: 44px 0;
            }
            .cta-card {
                padding: 28px 22px;
            }
            .cta-card h2 {
                font-size: 22px;
            }
            .site-footer {
                padding-top: 36px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .site-footer .footer-grid > div:first-child {
                grid-column: span 2;
            }
            .site-footer .footer-grid > div:last-child {
                grid-column: span 2;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-head h1 {
                font-size: 22px;
            }
            .head-meta {
                font-size: 12px;
                gap: 10px;
            }
            .stats-grid {
                gap: 8px;
            }
            .stat-item {
                flex: 1 1 100%;
                padding: 12px;
            }
            .indicator-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .article-card .card-body {
                padding: 16px 16px 18px;
            }
            .article-card .card-title {
                font-size: 16px;
            }
            .article-card .card-summary {
                font-size: 13.5px;
            }
            .cta-card {
                padding: 24px 16px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input[type="email"],
            .cta-form input[type="text"] {
                flex: 1 1 auto;
                width: 100%;
            }
            .btn-primary {
                width: 100%;
                justify-content: center;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .site-footer .footer-grid > div:first-child,
            .site-footer .footer-grid > div:last-child {
                grid-column: span 1;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #1E7FBF;
            --color-primary-dark: #155F91;
            --color-primary-soft: #E8F2FB;
            --color-bg: #F6F9FD;
            --color-surface: #FFFFFF;
            --color-ink: #152433;
            --color-muted: #5B6B7C;
            --color-line: #DCE6EF;
            --color-accent: #10B981;
            --color-warn: #F97316;
            --color-warn-soft: #FFF4EB;
            --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.10);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-badge: 999px;
            --space-section: 80px;
            --space-card-pad: 24px;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(30, 127, 191, 0.35);
            outline-offset: 2px;
        }

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

        /* ========== 顶部信息条 ========== */
        .topbar {
            background-color: #152433;
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            min-height: 38px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 40;
        }

        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }

        .topbar-left {
            display: flex;
            align-items: center;
            gap: 18px;
            min-width: 0;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        .topbar-left span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .topbar-left .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent);
            flex-shrink: 0;
        }

        .topbar-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .topbar-right a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .topbar-right a:hover {
            color: #FFFFFF;
        }

        /* ========== 主导航 ========== */
        .main-header {
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
            position: sticky;
            top: 0;
            z-index: 30;
            box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
        }

        .main-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background-color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .main-nav li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 15px;
            color: var(--color-ink);
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
        }

        .main-nav li a:hover {
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
        }

        .main-nav li a.active {
            color: var(--color-primary);
            background-color: transparent;
            font-weight: 600;
        }

        .main-nav li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--color-ink);
            font-size: 26px;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            transition: background-color 0.2s ease;
        }

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

        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            padding: 28px 0 0;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13.5px;
            color: var(--color-muted);
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--color-muted);
        }

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

        .breadcrumb-nav .separator {
            color: #B8C4D0;
            user-select: none;
        }

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

        /* ========== 分类标题区 ========== */
        .category-header {
            padding: 32px 0 36px;
        }

        .category-header h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 10px;
            line-height: 1.35;
        }

        .category-header .subtitle {
            font-size: 16px;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== 板块通用 ========== */
        .section-block {
            padding: 48px 0;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 8px;
            line-height: 1.35;
        }

        .section-lead {
            font-size: 15px;
            color: var(--color-muted);
            margin: 0 0 28px;
            line-height: 1.7;
        }

        /* ========== 卡片列表 ========== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 24px;
        }

        .article-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .article-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
        }

        .article-card .card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .article-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12.5px;
            color: var(--color-muted);
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .card-tag {
            display: inline-block;
            background: var(--color-primary-soft);
            color: var(--color-primary);
            font-size: 12px;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            font-weight: 500;
        }

        .card-tag.warn {
            background: var(--color-warn-soft);
            color: var(--color-warn);
        }

        .article-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-ink);
            margin: 0 0 10px;
            line-height: 1.5;
        }

        .article-card p {
            font-size: 14px;
            color: var(--color-muted);
            margin: 0 0 16px;
            line-height: 1.7;
            flex: 1;
        }

        .btn-read {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13.5px;
            font-weight: 500;
            color: var(--color-primary);
            padding: 6px 0;
            transition: color 0.2s ease;
            align-self: flex-start;
        }

        .btn-read:hover {
            color: var(--color-primary-dark);
        }

        /* ========== 规则注意事项板块 ========== */
        .rules-panel {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px;
        }

        .rules-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }

        .rule-item {
            padding: 20px 22px;
            background: var(--color-bg);
            border-radius: 12px;
            border-left: 4px solid var(--color-primary);
        }

        .rule-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-ink);
            margin: 0 0 8px;
        }

        .rule-item p {
            font-size: 13.5px;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== 安全对比表格 ========== */
        .table-wrapper {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: 12px;
            border: 1px solid var(--color-line);
            background: var(--color-surface);
        }

        .safety-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 680px;
            font-size: 14px;
            margin: 0;
        }

        .safety-table th {
            background: var(--color-primary-soft);
            color: var(--color-ink);
            font-weight: 600;
            text-align: left;
            padding: 14px 20px;
            font-size: 13.5px;
            border-bottom: 2px solid var(--color-line);
        }

        .safety-table td {
            padding: 12px 20px;
            border-bottom: 1px solid var(--color-line);
            color: var(--color-ink);
            line-height: 1.6;
        }

        .safety-table tbody tr:nth-child(even) {
            background: var(--color-bg);
        }

        .safety-table tbody tr:last-child td {
            border-bottom: none;
        }

        .safety-table .check {
            color: var(--color-accent);
            font-weight: 600;
        }

        .safety-table .warn {
            color: var(--color-warn);
            font-weight: 600;
        }

        /* ========== 风险提示FAQ ========== */
        .faq-section {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            border: 1px solid var(--color-line);
            border-radius: 12px;
            overflow: hidden;
            background: var(--color-surface);
            transition: border-color 0.2s ease;
        }

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

        .faq-question {
            width: 100%;
            text-align: left;
            background: var(--color-bg);
            border: none;
            padding: 16px 20px;
            font-size: 14.5px;
            font-weight: 600;
            color: var(--color-ink);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: background-color 0.2s ease;
        }

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

        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--color-primary);
            flex-shrink: 0;
            transition: transform 0.2s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            display: none;
            border-left: 3px solid var(--color-primary);
            margin-left: 20px;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--color-primary-soft);
            border-radius: var(--radius-card);
            padding: 40px;
            text-align: left;
            border: 1px solid var(--color-line);
        }

        .cta-section h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 10px;
        }

        .cta-section p {
            font-size: 15px;
            color: var(--color-muted);
            margin: 0 0 22px;
            line-height: 1.7;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            transition: all 0.2s ease;
            text-align: center;
        }

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

        .btn-primary:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            color: #FFFFFF;
            box-shadow: 0 4px 12px rgba(30, 127, 191, 0.3);
        }

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

        .btn-outline:hover {
            background: var(--color-primary-soft);
            border-color: var(--color-primary);
            color: var(--color-primary-dark);
        }

        .btn:active {
            transform: translateY(1px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: #152433;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
            margin-top: 64px;
        }

        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
        }

        .footer-brand .logo {
            color: #FFFFFF;
            margin-bottom: 14px;
        }

        .footer-brand .logo:hover {
            color: #FFFFFF;
        }

        .footer-brand p {
            font-size: 13.5px;
            line-height: 1.7;
            margin: 0 0 0;
        }

        .site-footer h4 {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 14px;
        }

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

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13.5px;
            transition: color 0.2s ease;
        }

        .site-footer ul li a:hover {
            color: var(--color-primary);
        }

        .footer-risk {
            font-size: 13px;
            line-height: 1.7;
            margin: 0;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 22px;
            margin-top: 36px;
            font-size: 12.5px;
            color: rgba(255, 255, 255, 0.55);
            width: 100%;
        }

        .footer-bottom .right-links a {
            color: rgba(255, 255, 255, 0.55);
            margin-left: 8px;
        }

        .footer-bottom .right-links a:hover {
            color: var(--color-primary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .site-footer .container {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .footer-bottom {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-surface);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                border-bottom: 1px solid var(--color-line);
                box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
                z-index: 50;
            }

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

            .main-nav li a {
                padding: 10px 14px;
                font-size: 15px;
                border-radius: 8px;
                width: 100%;
            }

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

            .main-nav li a.active {
                background: var(--color-primary-soft);
            }

            .category-header h1 {
                font-size: 26px;
            }

            .section-title {
                font-size: 20px;
            }

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

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

        @media (max-width: 520px) {
            .topbar-right {
                display: none;
            }

            .topbar-left {
                font-size: 11.5px;
            }

            .category-header h1 {
                font-size: 22px;
            }

            .section-block {
                padding: 32px 0;
            }

            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 22px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .cta-section {
                padding: 28px 22px;
            }

            .rules-panel,
            .faq-section {
                padding: 22px;
            }

            .article-card .card-img {
                height: 150px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #1E7FBF;
            --color-primary-dark: #155F91;
            --color-primary-soft: #E8F2FB;
            --color-bg: #F6F9FD;
            --color-surface: #FFFFFF;
            --color-ink: #152433;
            --color-muted: #5B6B7C;
            --color-line: #DCE6EF;
            --color-accent: #10B981;
            --color-warn: #F97316;
            --color-warn-soft: #FFF4EB;
            --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.10);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-badge: 999px;
            --space-section: 80px;
            --space-card-pad: 24px;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
        }

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(30, 127, 191, 0.35);
            outline-offset: 2px;
        }

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

        /* 顶部信息条 */
        .topbar {
            background-color: #152433;
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            min-height: 38px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 40;
        }

        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }

        .topbar-left {
            display: flex;
            align-items: center;
            gap: 18px;
            min-width: 0;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        .topbar-left span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .topbar-left .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent);
            flex-shrink: 0;
        }

        .topbar-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .topbar-right a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 12.5px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .topbar-right a:hover {
            color: #FFFFFF;
        }

        /* 主导航 */
        .main-header {
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
            position: sticky;
            top: 0;
            z-index: 30;
            box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
        }

        .main-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background-color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .main-nav li {
            list-style: none;
        }

        .main-nav li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 15px;
            color: var(--color-ink);
            font-weight: 500;
            border-radius: 8px;
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
        }

        .main-nav li a:hover {
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
        }

        .main-nav li a.active {
            color: var(--color-primary);
            background-color: transparent;
            font-weight: 600;
        }

        .main-nav li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background-color: var(--color-primary);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--color-ink);
            font-size: 26px;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            padding: 0;
        }

        /* 面包屑与标题区 */
        .page-header {
            background-color: var(--color-surface);
            padding: 40px 0 32px;
            border-bottom: 1px solid var(--color-line);
        }

        .breadcrumbs {
            font-size: 14px;
            color: var(--color-muted);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumbs a {
            color: var(--color-muted);
        }

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

        .breadcrumbs .sep {
            color: var(--color-line);
            user-select: none;
        }

        .page-header h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 12px;
            color: var(--color-ink);
            letter-spacing: 0.3px;
        }

        .page-header .subhead {
            font-size: 17px;
            color: var(--color-muted);
            line-height: 1.7;
            max-width: 800px;
            margin: 0;
        }

        /* 分类说明摘要区 */
        .category-intro {
            padding: 40px 0 0;
            background-color: transparent;
        }

        .intro-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            box-shadow: var(--shadow-card);
        }

        .intro-card p {
            margin: 0;
            font-size: 16px;
            color: var(--color-ink);
            line-height: 1.85;
        }

        /* 一般 section */
        .section-head {
            margin-bottom: 32px;
        }

        .section-head h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 8px;
            color: var(--color-ink);
        }

        .section-head p {
            font-size: 15px;
            color: var(--color-muted);
            margin: 0;
        }

        .content-grid-section,
        .metric-strip,
        .compare-section,
        .related-topics,
        .faq-section,
        .cta-section {
            padding: var(--space-section) 0;
        }

        .content-grid-section {
            background-color: var(--color-bg);
        }

        .metric-strip {
            background-color: var(--color-surface);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }

        .compare-section {
            background-color: var(--color-bg);
        }

        .related-topics {
            background-color: var(--color-surface);
            border-top: 1px solid var(--color-line);
        }

        .faq-section {
            background-color: var(--color-bg);
        }

        .cta-section {
            background-color: var(--color-surf);
            border-top: 1px solid var(--color-line);
        }

        /* 卡片列表 */
        .content-grid-section .grid-x {
            margin-bottom: -30px;
        }

        .content-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.25s ease, transform 0.2s ease, border-color 0.2s ease;
            margin-bottom: 30px;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .content-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }

        .card-media {
            display: block;
            aspect-ratio: 16/9;
            background-color: var(--color-primary-soft);
            overflow: hidden;
            position: relative;
        }

        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .content-card:hover .card-media img {
            transform: scale(1.04);
        }

        .card-body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            background-color: var(--color-primary-soft);
            color: var(--color-primary-dark);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.3px;
        }

        .badge.warn {
            background-color: var(--color-warn-soft);
            color: var(--color-warn);
        }

        .card-body time {
            font-size: 13px;
            color: var(--color-muted);
        }

        .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.45;
            margin: 0 0 10px;
        }

        .card-body h3 a {
            color: var(--color-ink);
        }

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

        .card-body p {
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.7;
            margin: 0 0 18px;
            flex: 1;
        }

        .btn-readmore {
            align-self: flex-start;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            padding: 8px 16px;
            border: 1px solid var(--color-line);
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-readmore:hover {
            background-color: var(--color-primary);
            border-color: var(--color-primary);
            color: #FFFFFF;
        }

        .more-wrap {
            text-align: center;
            margin-top: 40px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: 1px solid transparent;
            transition: all 0.2s ease;
            cursor: pointer;
            text-align: center;
            line-height: 1.2;
        }

        .btn:active {
            transform: translateY(1px);
        }

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

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

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

        .btn-outline:hover {
            background-color: var(--color-primary-soft);
            color: var(--color-primary-dark);
        }

        /* 指标条 */
        .metric-card {
            background-color: var(--color-primary-soft);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .metric-card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
        }

        .metric-value {
            font-size: 34px;
            font-weight: 700;
            color: var(--color-primary-dark);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--color-muted);
        }

        /* 对比表格 */
        .table-responsive {
            overflow-x: auto;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-line);
            box-shadow: var(--shadow-card);
            background-color: var(--color-surface);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 720px;
            margin: 0;
        }

        .compare-table th,
        .compare-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--color-line);
            font-size: 15px;
            vertical-align: middle;
        }

        .compare-table th {
            background-color: var(--color-primary-soft);
            color: var(--color-ink);
            font-weight: 700;
            white-space: nowrap;
        }

        .compare-table tbody tr:last-child td {
            border-bottom: none;
        }

        .compare-table tbody tr:hover {
            background-color: #F0F7FC;
        }

        .player-cell {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .player-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }

        .win-rate {
            color: var(--color-accent);
            font-weight: 700;
        }

        /* 相关专题 */
        .topic-card {
            display: block;
            background-color: var(--color-primary-soft);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            color: var(--color-ink);
            font-weight: 600;
            font-size: 17px;
            text-align: center;
            transition: all 0.2s ease;
            box-shadow: var(--shadow-card);
            height: 100%;
        }

        .topic-card:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        /* FAQ */
        .faq-section .accordion {
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            background-color: var(--color-surface);
            margin: 0;
        }

        .faq-section .accordion-item {
            border-bottom: 1px solid var(--color-line);
        }

        .faq-section .accordion-item:last-child {
            border-bottom: none;
        }

        .faq-section .accordion-title {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-ink);
            background-color: var(--color-surface);
            border: none;
            width: 100%;
            text-align: left;
            cursor: pointer;
            transition: background-color 0.2s ease;
        }

        .faq-section .accordion-title:hover {
            background-color: #F0F7FC;
        }

        .faq-section .accordion-title::before {
            content: '?';
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--color-primary-soft);
            color: var(--color-primary);
            font-weight: 700;
            flex-shrink: 0;
        }

        .faq-section .accordion-content {
            padding: 0 24px 20px 24px;
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.85;
            border-left: 3px solid var(--color-primary);
            margin-left: 24px;
        }

        .faq-section .accordion-content p {
            margin: 0;
        }

        /* CTA */
        .cta-inner {
            background-color: var(--color-primary-soft);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .cta-inner h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 10px;
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--color-muted);
            margin: 0 0 24px;
        }

        .subscribe-form {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
        }

        .subscribe-form input[type="email"] {
            flex: 1 1 240px;
            padding: 12px 18px;
            border: 1px solid var(--color-line);
            border-radius: var(--radius-btn);
            font-size: 15px;
            background-color: #FFFFFF;
            color: var(--color-ink);
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .subscribe-form input[type="email"]:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(30,127,191,0.15);
        }

        /* 页脚 */
        .site-footer {
            background-color: #152433;
            color: rgba(255,255,255,0.75);
            padding: 56px 0 0;
            font-size: 14px;
            line-height: 1.7;
        }

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

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            padding-bottom: 40px;
        }

        .site-footer .logo {
            color: #FFFFFF;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .site-footer .logo:hover {
            color: #D4E8F5;
        }

        .site-footer .logo .logo-icon {
            background-color: var(--color-primary);
        }

        .site-footer p {
            margin: 0 0 12px;
            color: rgba(255,255,255,0.7);
            font-size: 14px;
        }

        .site-footer h4 {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 16px;
        }

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

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

        .site-footer ul li a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .site-footer ul li a:hover {
            color: #D4E8F5;
        }

        .footer-risk {
            font-size: 13px;
            color: rgba(255,255,255,0.55);
            border-left: 3px solid var(--color-warn);
            padding-left: 12px;
            margin-top: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255,255,255,0.55);
        }

        .footer-bottom .right-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .footer-bottom a {
            color: rgba(255,255,255,0.55);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        /* 响应式 */
        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 56px;
            }
            .topbar-right {
                display: none;
            }
            .topbar-left {
                white-space: normal;
            }
            .main-header .container {
                flex-wrap: wrap;
                min-height: auto;
                padding-top: 10px;
                padding-bottom: 10px;
            }
            .logo {
                flex: 1;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                flex-basis: 100%;
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding-bottom: 10px;
            }
            .main-nav.is-open {
                display: flex;
            }
            .main-nav li a {
                padding: 12px 16px;
                width: 100%;
            }
            .main-nav li a.active::after {
                left: 16px;
                right: 16px;
            }
            .page-header h1 {
                font-size: 26px;
            }
            .content-grid-section .grid-x,
            .metric-strip .grid-x,
            .related-topics .grid-x {
                margin-left: -12px;
                margin-right: -12px;
            }
            .content-card,
            .metric-card,
            .topic-card {
                margin-bottom: 20px;
            }
            .cta-inner {
                padding: 28px 20px;
            }
            .subscribe-form {
                flex-direction: column;
                align-items: stretch;
            }
            .subscribe-form input[type="email"] {
                flex: 1 1 auto;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .topbar {
                font-size: 11.5px;
            }
            .topbar-left {
                gap: 8px;
            }
            .page-header {
                padding: 28px 0 24px;
            }
            .page-header h1 {
                font-size: 22px;
            }
            .page-header .subhead {
                font-size: 15px;
            }
            .card-body {
                padding: 18px 18px 20px;
            }
            .compare-table th,
            .compare-table td {
                padding: 12px 15px;
                font-size: 14px;
            }
            .faq-section .accordion-content {
                margin-left: 16px;
                padding: 0 16px 16px 16px;
            }
            .faq-section .accordion-title {
                padding: 14px 18px;
                font-size: 15px;
            }
            .site-footer {
                padding-top: 40px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
                padding-bottom: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category5 */
:root {
      --color-primary: #1E7FBF;
      --color-primary-dark: #155F91;
      --color-primary-soft: #E8F2FB;
      --color-bg: #F6F9FD;
      --color-surface: #FFFFFF;
      --color-ink: #152433;
      --color-muted: #5B6B7C;
      --color-line: #DCE6EF;
      --color-accent: #10B981;
      --color-warn: #F97316;
      --color-warn-soft: #FFF4EB;
      --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.06);
      --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.10);
      --radius-card: 16px;
      --radius-btn: 10px;
      --radius-badge: 999px;
      --space-section: 80px;
      --space-card-pad: 24px;
      --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

    @media (max-width: 640px) {
      :root {
        --space-section: 56px;
      }
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

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

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

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

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

    button,
    input,
    textarea,
    select {
      font-family: inherit;
      font-size: inherit;
    }

    button {
      cursor: pointer;
    }

    button:focus-visible,
    a:focus-visible,
    input:focus-visible,
    textarea:focus-visible {
      outline: 3px solid rgba(30, 127, 191, 0.35);
      outline-offset: 2px;
    }

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

    /* ========== 顶部信息条 ========== */
    .topbar {
      background-color: #152433;
      color: rgba(255, 255, 255, 0.85);
      font-size: 12.5px;
      min-height: 38px;
      display: flex;
      align-items: center;
      position: relative;
      z-index: 40;
    }

    .topbar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      gap: 16px;
    }

    .topbar-left {
      display: flex;
      align-items: center;
      gap: 18px;
      min-width: 0;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
    }

    .topbar-left span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .topbar-left .dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background-color: var(--color-accent);
      flex-shrink: 0;
    }

    .topbar-right {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-shrink: 0;
    }

    .topbar-right a {
      color: rgba(255, 255, 255, 0.85);
      font-size: 12.5px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .topbar-right a:hover {
      color: #FFFFFF;
    }

    /* ========== 主导航 ========== */
    .main-header {
      background-color: var(--color-surface);
      border-bottom: 1px solid var(--color-line);
      position: sticky;
      top: 0;
      z-index: 30;
      box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
    }

    .main-header .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 72px;
      gap: 20px;
      position: relative;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 700;
      color: var(--color-ink);
      letter-spacing: 0.5px;
      flex-shrink: 0;
    }

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

    .logo-icon {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background-color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-size: 18px;
      font-weight: 700;
      flex-shrink: 0;
    }

    .main-nav {
      display: flex;
      align-items: center;
    }

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

    .main-nav li a {
      display: inline-flex;
      align-items: center;
      padding: 8px 14px;
      font-size: 15px;
      color: var(--color-ink);
      font-weight: 500;
      border-radius: 8px;
      position: relative;
      transition: color 0.2s ease, background-color 0.2s ease;
    }

    .main-nav li a:hover {
      background-color: var(--color-primary-soft);
      color: var(--color-primary);
    }

    .main-nav li a.active {
      color: var(--color-primary);
      background-color: transparent;
      font-weight: 600;
    }

    .main-nav li a.active::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 14px;
      right: 14px;
      height: 3px;
      background-color: var(--color-primary);
      border-radius: 2px;
    }

    .nav-toggle {
      display: none;
      background: none;
      border: 1px solid var(--color-line);
      color: var(--color-ink);
      font-size: 26px;
      width: 44px;
      height: 44px;
      border-radius: 8px;
      align-items: center;
      justify-content: center;
      line-height: 1;
      padding: 0;
    }

    /* ========== 面包屑 ========== */
    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 13px;
      color: var(--color-muted);
      margin-bottom: 12px;
    }

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

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

    .breadcrumb span {
      color: var(--color-line);
    }

    /* ========== 分类头部 ========== */
    .category-header {
      padding: 36px 0 20px;
      background-color: var(--color-bg);
    }

    .category-title-row {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1px;
      color: var(--color-primary);
      text-transform: uppercase;
      margin-bottom: 8px;
    }

    .eyebrow::before {
      content: '';
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--color-primary);
      flex-shrink: 0;
    }

    h1 {
      font-size: 34px;
      line-height: 1.25;
      font-weight: 700;
      color: var(--color-ink);
      margin: 0 0 12px;
    }

    h2 {
      font-size: 24px;
      line-height: 1.35;
      font-weight: 700;
      color: var(--color-ink);
      margin: 0 0 12px;
    }

    h3 {
      font-size: 18px;
      line-height: 1.4;
      font-weight: 600;
      color: var(--color-ink);
      margin: 0 0 8px;
    }

    /* ========== 板块通用 ========== */
    .page-section {
      padding: 0;
      margin-bottom: var(--space-section);
    }

    .page-section:last-of-type {
      margin-bottom: 0;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 28px;
    }

    .section-head .eyebrow {
      margin-bottom: 6px;
    }

    .section-head h2 {
      margin-bottom: 0;
    }

    .intro-card {
      background-color: var(--color-surface);
      border: 1px solid var(--color-line);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 24px 28px;
    }

    .intro-text {
      font-size: 16px;
      line-height: 1.9;
      color: var(--color-ink);
      margin: 0;
    }

    /* ========== 卡片网格 ========== */
    .content-card {
      background-color: var(--color-surface);
      border: 1px solid var(--color-line);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .content-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
      border-color: var(--color-primary);
    }

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

    .card-body {
      padding: var(--space-card-pad);
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      font-size: 12px;
      color: var(--color-muted);
      margin-bottom: 10px;
    }

    .card-body p {
      font-size: 14px;
      line-height: 1.75;
      color: var(--color-muted);
      margin: 0 0 16px;
      flex: 1;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 4px 10px;
      border-radius: var(--radius-badge);
      font-size: 12px;
      font-weight: 500;
      line-height: 1.2;
      white-space: nowrap;
    }

    .badge-blue {
      background-color: var(--color-primary-soft);
      color: var(--color-primary-dark);
    }

    .badge-green {
      background-color: rgba(16, 185, 129, 0.12);
      color: #0A7A5B;
    }

    .badge-orange {
      background-color: var(--color-warn-soft);
      color: #C85A0A;
    }

    /* ========== 按钮 ========== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 10px 18px;
      font-size: 14px;
      font-weight: 600;
      line-height: 1.2;
      border-radius: var(--radius-btn);
      border: 1px solid transparent;
      transition: transform 0.15s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
      cursor: pointer;
      white-space: nowrap;
    }

    .btn:active {
      transform: translateY(1px);
    }

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

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

    .btn-outline {
      background-color: var(--color-surface);
      color: var(--color-primary);
      border-color: var(--color-primary);
    }

    .btn-outline:hover {
      background-color: var(--color-primary-soft);
      color: var(--color-primary-dark);
    }

    .btn-sm {
      padding: 8px 14px;
      font-size: 13px;
      border-radius: 8px;
    }

    /* ========== 表格 ========== */
    .table-scroll {
      overflow-x: auto;
      -webkit-overflow-scrolling: touch;
      border: 1px solid var(--color-line);
      border-radius: var(--radius-card);
      background-color: var(--color-surface);
      box-shadow: var(--shadow-card);
    }

    .schedule-table {
      width: 100%;
      min-width: 720px;
      border-collapse: collapse;
      font-size: 14px;
      color: var(--color-ink);
      margin: 0;
    }

    .schedule-table th,
    .schedule-table td {
      padding: 14px 16px;
      border-bottom: 1px solid var(--color-line);
      text-align: left;
      vertical-align: middle;
    }

    .schedule-table thead th {
      background-color: var(--color-primary-soft);
      color: var(--color-ink);
      font-weight: 600;
      font-size: 13px;
      letter-spacing: 0.3px;
    }

    .schedule-table tbody tr:last-child td {
      border-bottom: none;
    }

    .schedule-table tbody tr:hover td {
      background-color: #FBFDFF;
    }

    /* ========== 结果记录 ========== */
    .result-grid {
      gap: 24px 0;
    }

    .result-card {
      background-color: var(--color-surface);
      border: 1px solid var(--color-line);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 20px 22px;
      height: 100%;
      transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .result-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-card-hover);
      border-color: var(--color-primary);
    }

    .result-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      margin-bottom: 10px;
    }

    .result-date {
      font-size: 12px;
      color: var(--color-muted);
    }

    .result-card h3 {
      font-size: 17px;
      margin-bottom: 8px;
    }

    .result-card p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--color-muted);
      margin: 0;
    }

    /* ========== 风险提示 ========== */
    .risk-note {
      background-color: var(--color-warn-soft);
      border: 1px solid #FBD7B3;
      border-left: 4px solid var(--color-warn);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 24px 28px;
    }

    .risk-note h2 {
      margin-bottom: 16px;
    }

    .risk-note ul {
      margin: 0;
      padding-left: 18px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .risk-note li {
      font-size: 15px;
      line-height: 1.7;
      color: #5F3B1A;
      padding-left: 4px;
    }

    /* ========== CTA ========== */
    .cta-panel {
      background-color: var(--color-primary-soft);
      border: 1px solid #C9E1F3;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 28px 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      flex-wrap: wrap;
    }

    .cta-panel h2 {
      margin-bottom: 6px;
    }

    .cta-panel p {
      margin: 0;
      color: var(--color-muted);
      font-size: 15px;
      max-width: 620px;
    }

    .cta-form {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }

    .cta-form input[type="email"] {
      width: 260px;
      max-width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--color-line);
      border-radius: var(--radius-btn);
      background-color: var(--color-surface);
      color: var(--color-ink);
      font-size: 14px;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .cta-form input[type="email"]:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px rgba(30, 127, 191, 0.15);
      outline: none;
    }

    /* ========== 页脚 ========== */
    .site-footer {
      background-color: #152433;
      color: #CBD7E4;
      padding: 48px 0 0;
      margin-top: 0;
    }

    .site-footer .container {
      display: flex;
      flex-wrap: wrap;
      gap: 32px;
      justify-content: space-between;
    }

    .footer-brand {
      flex: 1 1 300px;
      max-width: 360px;
    }

    .site-footer .logo {
      color: #FFFFFF;
      margin-bottom: 12px;
    }

    .site-footer .logo:hover {
      color: #A8D3F2;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      color: #CBD7E4;
      margin: 0 0 8px;
    }

    .site-footer h4 {
      color: #FFFFFF;
      font-size: 15px;
      margin: 0 0 12px;
      font-weight: 600;
    }

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

    .site-footer ul li a {
      display: block;
      padding: 4px 0;
      color: #CBD7E4;
      font-size: 14px;
    }

    .site-footer ul li a:hover {
      color: #A8D3F2;
    }

    .footer-risk {
      font-size: 13px;
      line-height: 1.7;
      color: #CBD7E4;
      margin: 0;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      margin-top: 32px;
      padding: 16px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 13px;
      color: #CBD7E4;
    }

    .footer-bottom .right-links a {
      color: #FFFFFF;
      margin-left: 4px;
    }

    .footer-bottom .right-links a:hover {
      color: #A8D3F2;
    }

    /* ========== 响应式 ========== */
    @media (max-width: 1024px) {
      h1 {
        font-size: 30px;
      }
      .main-nav li a {
        padding: 8px 10px;
        font-size: 14px;
      }
    }

    @media (max-width: 768px) {
      .main-header .container {
        flex-wrap: wrap;
        min-height: 64px;
      }
      .nav-toggle {
        display: inline-flex;
      }
      .main-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background-color: var(--color-surface);
        border-bottom: 1px solid var(--color-line);
        box-shadow: 0 10px 24px rgba(15, 23, 42, 0.10);
        padding: 12px 24px 18px;
        z-index: 25;
      }
      .main-nav.open {
        display: block;
      }
      .main-nav ul {
        flex-direction: column;
        gap: 0;
        align-items: stretch;
      }
      .main-nav li a {
        display: block;
        padding: 12px 8px;
        font-size: 15px;
        border-radius: 8px;
      }
      .main-nav li a.active::after {
        bottom: 0;
        left: 0;
        right: auto;
        width: 3px;
        height: auto;
        top: 0;
        background-color: var(--color-primary);
      }
      .topbar-right {
        display: none;
      }
      h1 {
        font-size: 28px;
      }
      .section-head {
        align-items: flex-start;
        flex-direction: column;
      }
      .cta-panel {
        flex-direction: column;
        align-items: flex-start;
      }
      .cta-form {
        width: 100%;
      }
      .cta-form input[type="email"] {
        flex: 1;
        min-width: 0;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }
      .main-header .container {
        min-height: 60px;
        gap: 12px;
      }
      .logo {
        font-size: 19px;
      }
      .logo-icon {
        width: 32px;
        height: 32px;
        font-size: 16px;
        border-radius: 8px;
      }
      .nav-toggle {
        width: 40px;
        height: 40px;
        font-size: 22px;
      }
      h1 {
        font-size: 26px;
      }
      h2 {
        font-size: 21px;
      }
      .page-section {
        margin-bottom: 48px;
      }
      .intro-card {
        padding: 18px 20px;
      }
      .card-cover img {
        height: 160px;
      }
      .card-body {
        padding: 18px;
      }
      .btn {
        padding: 10px 16px;
        font-size: 13px;
      }
      .risk-note {
        padding: 18px 20px;
      }
      .cta-panel {
        padding: 20px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }