/* roulang page: index */
:root {
            --primary: #0ea5e9;
            --primary-dark: #0284c7;
            --primary-light: #e0f2fe;
            --accent: #10b981;
            --graphite: #0f172a;
            --dark-section: #0b0f19;
            --dark-card: #151d30;
            --border-color: #e2e8f0;
            --border-dark: #243048;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --text-main: #0f172a;
            --text-muted: #475569;
            --text-light: #94a3b8;
            --radius-sm: 4px;
            --radius-md: 6px;
            --shadow-subtle: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px 0 rgba(0, 0, 0, 0.04);
            --shadow-float: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
            --font-stack: -apple-system, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-white);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 杂志刊头双行导航 */
        .masthead-nav {
            background-color: var(--bg-white);
            border-bottom: 2px solid var(--graphite);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .nav-top-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .nav-brand-logo {
            font-size: 1.45rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            color: var(--graphite);
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .nav-meta-info {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
            font-size: 0.8125rem;
            background: #ecfdf5;
            color: #065f46;
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            border: 1px solid #a7f3d0;
        }

        .status-dot {
            width: 6px;
            height: 6px;
            background-color: var(--accent);
            border-radius: 50%;
        }

        .nav-bottom-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            overflow-x: auto;
            white-space: nowrap;
        }

        .nav-channel-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-channel-links a {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-main);
            position: relative;
            padding: 6px 0;
        }

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

        .nav-cta-btn {
            background-color: var(--graphite);
            color: #ffffff;
            padding: 6px 16px;
            font-size: 0.875rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all 0.2s;
        }

        .nav-cta-btn:hover {
            background-color: var(--primary);
            color: #ffffff;
        }

        /* 基础通用组件 */
        .section-padding {
            padding: 88px 0;
        }

        .bg-light-stripe {
            background-color: var(--bg-light);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-kicker {
            text-transform: uppercase;
            font-size: 0.8125rem;
            letter-spacing: 1.5px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
            display: block;
        }

        .section-title {
            font-size: 2.125rem;
            font-weight: 800;
            color: var(--graphite);
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 1.0625rem;
            color: var(--text-muted);
            max-width: 820px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            font-size: 0.9375rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(14, 165, 233, 0.25);
        }

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

        .btn-outline:hover {
            background-color: #f1f5f9;
            transform: translateY(-2px);
        }

        /* 01. 首屏地图/本地感首屏 */
        .hero-section {
            padding: 70px 0 80px;
            background: linear-gradient(rgba(255,255,255,0.92), rgba(255,255,255,0.98)), url('/assets/images/a654730e7f826a59.png') center/cover no-repeat;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.25fr 0.95fr;
            gap: 48px;
            align-items: center;
        }

        .hero-local-bar {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 12px;
            background-color: #f1f5f9;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 0.8125rem;
            font-weight: 600;
            margin-bottom: 20px;
            color: var(--graphite);
        }

        .hero-title {
            font-size: 2.75rem;
            font-weight: 900;
            letter-spacing: -1px;
            line-height: 1.2;
            color: var(--graphite);
            margin-bottom: 24px;
        }

        .hero-desc {
            font-size: 1.125rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            max-width: 620px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            margin-bottom: 36px;
        }

        .hero-metrics-strip {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }

        .hero-metric-val {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--graphite);
            display: block;
        }

        .hero-metric-lbl {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        .hero-card-cluster {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-float);
        }

        .cluster-header {
            font-size: 0.9375rem;
            font-weight: 700;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 12px;
            margin-bottom: 16px;
            display: flex;
            justify-content: space-between;
        }

        .cluster-row {
            display: flex;
            justify-content: space-between;
            font-size: 0.875rem;
            padding: 10px 0;
            border-bottom: 1px dashed #f1f5f9;
        }

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

        /* 02. 合集目录与产品矩阵 */
        .catalog-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .catalog-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 28px;
            transition: all 0.25s ease;
            position: relative;
        }

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

        .catalog-tag {
            font-size: 0.75rem;
            font-weight: 700;
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            display: inline-block;
            margin-bottom: 16px;
        }

        .catalog-title {
            font-size: 1.25rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .catalog-spec-list {
            list-style: none;
            margin: 18px 0;
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .catalog-spec-list li {
            padding: 6px 0;
            border-bottom: 1px solid #f8fafc;
            display: flex;
            justify-content: space-between;
        }

        /* 03. 核心优势六联卡 */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .adv-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-sm);
        }

        .adv-card h4 {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--graphite);
        }

        .adv-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 04. 深色对比度案例与理念 */
        .dark-case-section {
            background-color: var(--dark-section);
            color: #ffffff;
        }

        .dark-case-section .section-title {
            color: #ffffff;
        }

        .dark-case-section .section-desc {
            color: var(--text-light);
        }

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

        .dark-card-panel {
            background-color: var(--dark-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 32px;
        }

        .dark-card-panel h3 {
            font-size: 1.375rem;
            margin-bottom: 16px;
            color: #ffffff;
        }

        .dark-stat-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid var(--border-dark);
        }

        .dark-stat-val {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--accent);
        }

        /* 05. 运营数据统计横条 */
        .kpi-strip-section {
            background-color: var(--graphite);
            color: #ffffff;
            padding: 48px 0;
        }

        .kpi-flex-box {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .kpi-num {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary);
            display: block;
            margin-bottom: 6px;
        }

        .kpi-lbl {
            font-size: 0.875rem;
            color: var(--text-light);
            letter-spacing: 0.5px;
        }

        /* 06. 行业用户实战故事 */
        .story-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 48px;
        }

        .story-row:last-child {
            margin-bottom: 0;
        }

        .story-content h3 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .story-img-box {
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-subtle);
        }

        /* 07. 客户与技术专家评价 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testi-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 28px;
            border-radius: var(--radius-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .testi-quote {
            font-size: 0.9375rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            font-style: italic;
        }

        .testi-author {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid #f1f5f9;
            padding-top: 16px;
        }

        .author-meta strong {
            display: block;
            font-size: 0.9rem;
            color: var(--graphite);
        }

        .author-meta span {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        /* 08. 游戏AI前沿动态资讯区 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            border: 1px solid var(--border-color);
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .news-card-img {
            height: 180px;
            overflow: hidden;
        }

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

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

        .news-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-title {
            font-size: 1.125rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .news-excerpt {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 09. 平台保障板块 */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .sec-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-sm);
        }

        .sec-card h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }

        .sec-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        /* 10. 快速部署解答板块 */
        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-card {
            position: relative;
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-sm);
        }

        .step-index {
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .step-card h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        /* 11. 常见技术问题解答 (FAQ) */
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            border-radius: var(--radius-sm);
            background: var(--bg-white);
            overflow: hidden;
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            background-color: #fafbfc;
        }

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

        .faq-answer {
            padding: 20px 24px;
            border-top: 1px solid var(--border-color);
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 12. 专题索引与模块推荐 */
        .topics-index-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .topic-pill-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: var(--radius-sm);
        }

        .topic-pill-card h4 {
            font-size: 1rem;
            margin-bottom: 8px;
            color: var(--graphite);
        }

        .topic-pill-card p {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        /* 13. 终极转化与预约表单 */
        .conversion-wrapper {
            background-color: var(--graphite);
            border-radius: var(--radius-md);
            padding: 56px 48px;
            color: #ffffff;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .conversion-info h3 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .conversion-info p {
            color: var(--text-light);
            font-size: 1rem;
            margin-bottom: 24px;
        }

        .static-form {
            background: #ffffff;
            padding: 32px;
            border-radius: var(--radius-sm);
            color: var(--text-main);
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-label {
            display: block;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .form-control {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-family: inherit;
            font-size: 0.9rem;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
        }

        /* 综合商业页脚 */
        .footer-site {
            background-color: #070b13;
            color: #64748b;
            padding: 64px 0 32px;
            font-size: 0.875rem;
            border-top: 1px solid #1e293b;
        }

        .footer-columns {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-col h4 {
            color: #cbd5e1;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
        }

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

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

        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid #1e293b;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8125rem;
        }

        /* 移动端与自适应断点 */
        @media (max-width: 1024px) {
            .hero-grid,
            .dark-case-grid,
            .story-row,
            .conversion-wrapper {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .catalog-grid,
            .advantage-grid,
            .testimonial-grid,
            .news-grid,
            .topics-index-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-grid,
            .step-grid,
            .kpi-flex-box {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-columns {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.125rem;
            }
            .catalog-grid,
            .advantage-grid,
            .testimonial-grid,
            .news-grid,
            .topics-index-grid,
            .security-grid,
            .step-grid,
            .kpi-flex-box {
                grid-template-columns: 1fr;
            }
            .nav-top-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .nav-meta-info {
                width: 100%;
                justify-content: space-between;
            }
            .conversion-wrapper {
                padding: 32px 20px;
            }
            .footer-columns {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }