:root {
            --primary: #0F52BA;
            --primary-light: #007FFF;
            --primary-dark: #0A3D8B;
            --accent: #FF9900;
            --text-dark: #0F172A;
            --text-muted: #475569;
            --bg-light: #F4F7FC;
            --bg-white: #FFFFFF;
            --border-color: #E2E8F0;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-dark);
            background-color: var(--bg-light);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

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

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

        /* 统一页面容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: 80px 0;
            background-color: var(--bg-white);
        }

        section:nth-of-type(even) {
            background-color: var(--bg-light);
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-header h2 {
            font-size: 2.2rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary-light);
            margin: 10px auto 0;
            border-radius: 2px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
        }

        /* 顶部导航 */
        header.site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 10px rgba(0,0,0,0.02);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-area img {
            height: 40px;
            width: auto;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
        }

        .nav-menu a {
            color: var(--text-dark);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 12px;
            border-radius: 4px;
        }

        .nav-menu a:hover, .nav-menu a.active {
            color: var(--primary);
            background: rgba(15, 82, 186, 0.05);
        }

        .nav-btn {
            background: var(--primary);
            color: white !important;
            padding: 8px 18px !important;
            border-radius: 30px !important;
            font-weight: bold !important;
            box-shadow: 0 4px 6px rgba(15, 82, 186, 0.15);
        }

        .nav-btn:hover {
            background: var(--primary-light);
            box-shadow: 0 6px 12px rgba(15, 82, 186, 0.25);
            transform: translateY(-1px);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-dark);
        }

        /* 移动端菜单层 */
        @media (max-width: 1024px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
        }

        /* 首屏 Hero (无图片) */
        .hero-section {
            background: linear-gradient(135deg, #0a1931 0%, #0F52BA 50%, #007FFF 100%);
            color: white;
            padding: 100px 0 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 80% 20%, rgba(0, 255, 255, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(255, 153, 0, 0.1) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-title-area {
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-title-area h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
            color: #FFFFFF;
        }

        .hero-subtitle {
            font-size: 1.3rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 35px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        .btn-main {
            background: var(--accent);
            color: var(--text-dark);
            font-weight: bold;
            font-size: 1.1rem;
            padding: 14px 35px;
            border-radius: 30px;
            box-shadow: 0 5px 15px rgba(255, 153, 0, 0.4);
            transition: var(--transition);
        }

        .btn-main:hover {
            background: #FFA500;
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 153, 0, 0.5);
        }

        .btn-sub {
            background: rgba(255, 255, 255, 0.15);
            color: white;
            font-weight: 500;
            font-size: 1.1rem;
            padding: 14px 35px;
            border-radius: 30px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
        }

        .btn-sub:hover {
            background: rgba(255, 255, 255, 0.25);
            color: white;
            transform: translateY(-2px);
        }

        /* 数据指标卡片 (Hero区下方展示) */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1000px;
            margin: 40px auto 0 auto;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 12px;
            padding: 20px 15px;
            backdrop-filter: blur(5px);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-3px);
            background: rgba(255, 255, 255, 0.12);
        }

        .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: #FF9900;
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
        }

        @media (max-width: 768px) {
            .hero-title-area h1 {
                font-size: 2rem;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* 关于我们与平台介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            color: var(--primary-dark);
            margin-bottom: 20px;
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1.05rem;
        }

        .about-features {
            list-style: none;
        }

        .about-features li {
            margin-bottom: 12px;
            position: relative;
            padding-left: 28px;
            color: var(--text-dark);
            font-weight: 500;
        }

        .about-features li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--primary-light);
            font-weight: bold;
            font-size: 1.1rem;
        }

        .about-highlight-box {
            background: linear-gradient(135deg, rgba(15, 82, 186, 0.05) 0%, rgba(0, 127, 255, 0.05) 100%);
            border-left: 4px solid var(--primary);
            padding: 30px;
            border-radius: 0 12px 12px 0;
        }

        .about-highlight-box h4 {
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 15px;
        }

        @media (max-width: 992px) {
            .about-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 全平台AIGC服务 + 一站式AIGC制作 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 35px 25px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(15, 82, 186, 0.08);
            border-color: var(--primary-light);
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary-light);
            transform: scaleX(0);
            transition: var(--transition);
        }

        .service-card:hover::before {
            transform: scaleX(1);
        }

        .service-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-title {
            font-size: 1.3rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
        }

        .service-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .service-tag {
            display: inline-block;
            align-self: flex-start;
            background: rgba(15, 82, 186, 0.08);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        @media (max-width: 992px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        /* 聚合模型标签墙 */
        .model-cloud-section {
            background: var(--bg-white);
            padding: 50px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .model-cloud-title {
            text-align: center;
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 30px;
            font-weight: 600;
        }

        .model-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .model-tag {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-dark);
            transition: var(--transition);
        }

        .model-tag:hover {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
            transform: scale(1.05);
        }

        /* 全行业解决方案 + 全国服务网络 */
        .solutions-section {
            background-color: var(--bg-light);
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .solution-card {
            background: var(--bg-white);
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .solution-card:hover {
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
            transform: translateY(-3px);
        }

        .solution-title {
            font-size: 1.2rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .solution-list {
            list-style: none;
            padding-left: 0;
        }

        .solution-list li {
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-color);
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .solution-list li:last-child {
            border-bottom: none;
        }

        /* 服务网络与技术标准数据条 */
        .network-row {
            margin-top: 50px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .network-content h3, .standards-content h3 {
            font-size: 1.6rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
        }

        .network-content p, .standards-content p {
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .bar-container {
            margin-bottom: 15px;
        }

        .bar-label {
            display: flex;
            justify-content: space-between;
            margin-bottom: 5px;
            font-weight: 500;
        }

        .bar-bg {
            background: var(--border-color);
            height: 8px;
            border-radius: 4px;
            overflow: hidden;
        }

        .bar-fill {
            background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
            height: 100%;
            border-radius: 4px;
        }

        @media (max-width: 992px) {
            .solutions-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .network-row {
                grid-template-columns: 1fr;
            }
        }

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

        /* 标准化AIGC流程 */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            position: relative;
        }

        .step-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 30px 20px;
            border-radius: 12px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }

        .step-item:hover {
            border-color: var(--primary);
            transform: translateY(-5px);
        }

        .step-num {
            width: 45px;
            height: 45px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: bold;
            margin: 0 auto 20px auto;
            box-shadow: 0 4px 10px rgba(15, 82, 186, 0.2);
        }

        .step-title {
            font-size: 1.15rem;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }

        .step-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        @media (max-width: 992px) {
            .steps-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .steps-container {
                grid-template-columns: 1fr;
            }
        }

        /* 对比评测板块 */
        .comparison-section {
            background-color: var(--bg-light);
        }

        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: center;
        }

        .score-box {
            background: linear-gradient(135deg, #0a1931 0%, #0F52BA 100%);
            color: white;
            border-radius: 16px;
            padding: 40px 30px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(15, 82, 186, 0.2);
        }

        .score-box h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .score-value {
            font-size: 4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 5px;
        }

        .score-value span {
            font-size: 1.5rem;
            color: rgba(255,255,255,0.7);
        }

        .stars {
            color: var(--accent);
            font-size: 1.8rem;
            margin-bottom: 20px;
        }

        .score-label {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.9);
            font-weight: 500;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background: var(--bg-white);
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.02);
            border: 1px solid var(--border-color);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .comparison-table th, .comparison-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .comparison-table th {
            background: #F8FAFC;
            color: var(--text-dark);
            font-weight: 600;
        }

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

        .comparison-table td.highlight {
            background: rgba(15, 82, 186, 0.02);
            font-weight: 600;
            color: var(--primary);
        }

        .status-yes {
            color: #10B981;
            font-weight: bold;
        }

        .status-no {
            color: #EF4444;
        }

        @media (max-width: 992px) {
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
        }

        /* Token 比价参考 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
            margin-top: 30px;
        }

        .token-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            text-align: center;
            transition: var(--transition);
        }

        .token-card:hover {
            border-color: var(--primary-light);
            box-shadow: 0 8px 20px rgba(0,0,0,0.03);
            transform: translateY(-2px);
        }

        .token-card.best-value {
            border: 2px solid var(--primary);
            position: relative;
        }

        .token-card.best-value::after {
            content: '推荐';
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--primary);
            color: white;
            font-size: 0.8rem;
            font-weight: bold;
            padding: 2px 12px;
            border-radius: 20px;
        }

        .token-model {
            font-size: 1.25rem;
            color: var(--primary-dark);
            font-weight: bold;
            margin-bottom: 10px;
        }

        .token-price {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-dark);
            margin: 15px 0;
        }

        .token-price span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: normal;
        }

        .token-features {
            list-style: none;
            padding: 0;
            margin: 20px 0;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .token-features li {
            padding: 6px 0;
            border-bottom: 1px solid #F1F5F9;
        }

        .token-features li:last-child {
            border-bottom: none;
        }

        @media (max-width: 992px) {
            .token-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        /* 职业技术培训 + 人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            align-items: center;
        }

        .training-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .training-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: var(--transition);
        }

        .training-card:hover {
            border-color: var(--primary);
            box-shadow: 0 5px 15px rgba(0,0,0,0.03);
            transform: translateX(5px);
        }

        .training-icon {
            background: rgba(15, 82, 186, 0.08);
            color: var(--primary);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        .training-info h4 {
            font-size: 1.1rem;
            color: var(--primary-dark);
            margin-bottom: 5px;
        }

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

        .training-box {
            background: linear-gradient(135deg, rgba(15, 82, 186, 0.03) 0%, rgba(0, 127, 255, 0.03) 100%);
            border: 1px solid rgba(15, 82, 186, 0.1);
            border-radius: 16px;
            padding: 40px;
        }

        .training-box h3 {
            font-size: 1.5rem;
            color: var(--primary-dark);
            margin-bottom: 20px;
        }

        .training-box p {
            color: var(--text-muted);
            margin-bottom: 25px;
            font-size: 1rem;
        }

        @media (max-width: 992px) {
            .training-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 客户案例中心 + 宣传图 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--bg-white);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .case-card:hover {
            box-shadow: 0 15px 30px rgba(0,0,0,0.08);
            transform: translateY(-5px);
        }

        .case-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #F1F5F9;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-card:hover .case-img-container img {
            transform: scale(1.05);
        }

        .case-info {
            padding: 25px;
        }

        .case-tag-line {
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: bold;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .case-title {
            font-size: 1.15rem;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .case-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        @media (max-width: 992px) {
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        /* 客户评论卡片 */
        .reviews-section {
            background-color: var(--bg-light);
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background: var(--bg-white);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px rgba(0,0,0,0.01);
            position: relative;
        }

        .review-quote {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 25px;
            line-height: 1.6;
            font-style: italic;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 15px;
            border-top: 1px solid #F1F5F9;
            padding-top: 15px;
        }

        .review-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--primary);
        }

        .review-meta h5 {
            font-size: 0.95rem;
            color: var(--text-dark);
            margin-bottom: 2px;
        }

        .review-meta p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        @media (max-width: 992px) {
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        /* 智能需求匹配 (表单区) */
        .form-section {
            background-color: var(--bg-white);
        }

        .form-wrapper {
            max-width: 750px;
            margin: 0 auto;
            background: var(--bg-light);
            padding: 40px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--text-dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            color: var(--text-dark);
            background: var(--bg-white);
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.1);
        }

        .btn-submit {
            display: block;
            width: 100%;
            background: var(--primary);
            color: white;
            font-weight: bold;
            font-size: 1.1rem;
            padding: 14px 20px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 6px rgba(15, 82, 186, 0.15);
        }

        .btn-submit:hover {
            background: var(--primary-light);
            box-shadow: 0 6px 15px rgba(15, 82, 186, 0.25);
        }

        /* 帮助中心 + 常见用户问题 FAQ + 自助排查 */
        .faq-section {
            background-color: var(--bg-light);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 40px;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.2rem;
            font-weight: bold;
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            content: '-';
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: #FAFBFD;
        }

        .faq-answer-content {
            padding: 20px 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 1px solid var(--border-color);
            line-height: 1.6;
        }

        .troubleshoot-box {
            background: linear-gradient(135deg, rgba(255, 153, 0, 0.05) 0%, rgba(15, 82, 186, 0.05) 100%);
            border: 1px solid rgba(15, 82, 186, 0.1);
            border-radius: 12px;
            padding: 30px;
            margin-top: 40px;
        }

        .troubleshoot-box h4 {
            color: var(--primary-dark);
            font-size: 1.2rem;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .troubleshoot-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            list-style: none;
        }

        .troubleshoot-list li {
            font-size: 0.95rem;
            color: var(--text-muted);
            padding-left: 20px;
            position: relative;
        }

        .troubleshoot-list li::before {
            content: '●';
            position: absolute;
            left: 0;
            color: var(--accent);
        }

        @media (max-width: 992px) {
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .troubleshoot-list {
                grid-template-columns: 1fr;
            }
        }

        /* AI术语百科 */
        .wiki-section {
            background-color: var(--bg-white);
        }

        .wiki-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .wiki-card {
            background: var(--bg-light);
            border-radius: 10px;
            padding: 25px;
            border: 1px solid var(--border-color);
        }

        .wiki-card h4 {
            color: var(--primary);
            font-size: 1.1rem;
            margin-bottom: 10px;
        }

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

        @media (max-width: 992px) {
            .wiki-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

        /* 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .news-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            transition: var(--transition);
        }

        .news-card:hover {
            border-color: var(--primary-light);
            box-shadow: 0 5px 15px rgba(0,0,0,0.02);
        }

        .news-meta-info {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .news-title-link {
            font-size: 1.2rem;
            color: var(--primary-dark);
            font-weight: bold;
            display: block;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-title-link:hover {
            color: var(--primary-light);
        }

        .news-excerpt {
            font-size: 0.95rem;
            color: var(--text-muted);
        }

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

        /* 加盟代理板块 */
        .agent-section {
            background: linear-gradient(135deg, rgba(15, 82, 186, 0.05) 0%, rgba(0, 127, 255, 0.05) 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .agent-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .agent-info h3 {
            font-size: 1.8rem;
            color: var(--primary-dark);
            margin-bottom: 20px;
        }

        .agent-info p {
            color: var(--text-muted);
            margin-bottom: 25px;
            font-size: 1.05rem;
        }

        .agent-highlights {
            list-style: none;
            margin-bottom: 30px;
        }

        .agent-highlights li {
            padding: 10px 0;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .agent-highlights li::before {
            content: "✦";
            color: var(--accent);
            font-size: 1.2rem;
        }

        .agent-box {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 35px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.03);
            text-align: center;
        }

        .agent-box h4 {
            font-size: 1.3rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
        }

        .agent-qr {
            width: 180px;
            height: 180px;
            margin: 20px auto;
            background: #F1F5F9;
            border-radius: 8px;
            padding: 10px;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .agent-qr img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        @media (max-width: 992px) {
            .agent-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 联系我们 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
        }

        .contact-info-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 25px;
            margin-top: 30px;
        }

        .contact-item {
            background: var(--bg-light);
            padding: 25px;
            border-radius: 10px;
            border: 1px solid var(--border-color);
        }

        .contact-item h4 {
            color: var(--primary-dark);
            margin-bottom: 10px;
            font-size: 1.05rem;
        }

        .contact-item p {
            font-size: 0.95rem;
            color: var(--text-muted);
            word-break: break-all;
        }

        .qr-section-small {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .qr-image-wrapper {
            width: 160px;
            height: 160px;
            margin-bottom: 15px;
            border: 1px solid var(--border-color);
            background: white;
            padding: 8px;
            border-radius: 8px;
        }

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

        .qr-section-small h4 {
            color: var(--primary-dark);
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .qr-section-small p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .contact-grid {
                grid-template-columns: 1fr;
            }
            .contact-info-list {
                grid-template-columns: 1fr;
            }
        }

        /* 友情链接与页脚 */
        footer.site-footer {
            background-color: #0A1931;
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-brand h4 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 15px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .footer-links h5 {
            color: white;
            font-size: 1.05rem;
            margin-bottom: 15px;
            position: relative;
        }

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

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

        .footer-links ul li a {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
        }

        .footer-links ul li a:hover {
            color: var(--primary-light);
            padding-left: 5px;
        }

        .friend-links-box {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 30px;
            margin-bottom: 30px;
        }

        .friend-links-box h5 {
            color: white;
            margin-bottom: 15px;
            font-size: 1rem;
        }

        .friend-links-flex {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links-flex a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .friend-links-flex a:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.85rem;
        }

        .footer-bottom p {
            color: rgba(255,255,255,0.5);
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* 浮动客服入口 */
        .float-contact {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-item {
            width: 50px;
            height: 50px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(0,0,0,0.15);
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

        .float-item:hover {
            background: var(--primary-light);
            transform: scale(1.05);
        }

        .float-item .popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 15px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            display: none;
            width: 180px;
            text-align: center;
        }

        .float-item:hover .popover {
            display: block;
        }

        .float-item .popover img {
            width: 100%;
            height: auto;
            border-radius: 4px;
            margin-bottom: 5px;
        }

        .float-item .popover p {
            color: var(--text-dark);
            font-size: 0.8rem;
            margin: 0;
        }