:root {
            --bg-dark: #0a0518;
            --bg-card: rgba(26, 15, 46, 0.65);
            --bg-card-hover: rgba(42, 24, 75, 0.85);
            --border-neon: rgba(255, 42, 141, 0.35);
            --border-hover: rgba(157, 78, 221, 0.8);
            --pink-neon: #ff2a8d;
            --purple-neon: #9d4edd;
            --cyan-neon: #00f5d4;
            --text-main: #f0e6ff;
            --text-sub: #b3a5d0;
            --gradient-primary: linear-gradient(135deg, #ff2a8d 0%, #7b2cbf 100%);
            --gradient-accent: linear-gradient(135deg, #00f5d4 0%, #9d4edd 100%);
            --gradient-card: linear-gradient(180deg, rgba(255,42,141,0.08) 0%, rgba(157,78,221,0.03) 100%);
            --shadow-glow: 0 0 25px rgba(255, 42, 141, 0.25);
            --container-max: 1200px;
        }

        * {
            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;
            background-color: var(--bg-dark);
            color: var(--text-main);
            line-height: 1.6;
        }

        body {
            background-color: var(--bg-dark);
            background-image: 
                radial-gradient(circle at 15% 20%, rgba(255, 42, 141, 0.12) 0%, transparent 40%),
                radial-gradient(circle at 85% 80%, rgba(157, 78, 221, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 50% 50%, rgba(0, 245, 212, 0.05) 0%, transparent 50%);
            background-attachment: fixed;
            overflow-x: hidden;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header.site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 5, 24, 0.85);
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(255, 42, 141, 0.2);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .brand-logo-wrap {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .ai-page-logo {
            max-height: 40px;
            width: auto;
            display: block;
        }

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

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

        .nav-links li {
            position: relative;
        }

        .nav-links a {
            color: var(--text-sub);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            transition: all 0.3s ease;
            display: block;
        }

        .nav-links a:hover {
            color: var(--pink-neon);
            text-shadow: 0 0 8px rgba(255, 42, 141, 0.6);
        }

        .ai-page-home-link {
            color: var(--pink-neon) !important;
            font-weight: 700 !important;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: 1px solid var(--border-neon);
            color: var(--text-main);
            font-size: 20px;
            padding: 5px 10px;
            border-radius: 6px;
            cursor: pointer;
        }

        /* 按钮通用 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
            outline: none;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(255, 42, 141, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(255, 42, 141, 0.7);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-main);
            border: 1px solid var(--pink-neon);
            box-shadow: inset 0 0 10px rgba(255, 42, 141, 0.2);
        }

        .btn-outline:hover {
            background: rgba(255, 42, 141, 0.15);
            border-color: var(--cyan-neon);
            color: var(--cyan-neon);
        }

        .btn-sm {
            padding: 6px 16px;
            font-size: 13px;
        }

        .btn-lg {
            padding: 14px 36px;
            font-size: 17px;
        }

        /* 页面通栏 Header / Main / Section Layout */
        main {
            margin-top: 72px;
        }

        section {
            padding: 80px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(255, 42, 141, 0.15);
            border: 1px solid var(--border-neon);
            color: var(--pink-neon);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 15px;
            letter-spacing: 0.5px;
        }

        .section-title span {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 700px;
            margin: 0 auto;
        }

        /* 模块 1: Hero 首屏 (严禁包含图片) */
        .hero-section {
            padding: 110px 0 80px;
            text-align: center;
            position: relative;
            background: radial-gradient(circle at 50% 30%, rgba(157, 78, 221, 0.25) 0%, transparent 60%);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 30px;
            background: rgba(255, 42, 141, 0.1);
            border: 1px solid var(--pink-neon);
            color: var(--pink-neon);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 25px;
            box-shadow: var(--shadow-glow);
        }

        .hero-title {
            font-size: 46px;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            color: #ffffff;
        }

        .hero-title span {
            background: linear-gradient(135deg, #ff2a8d 0%, #00f5d4 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--text-sub);
            max-width: 800px;
            margin: 0 auto 35px;
            line-height: 1.7;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        .model-tags-bar {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 1px dashed rgba(255, 42, 141, 0.2);
        }

        .model-tags-title {
            font-size: 13px;
            color: var(--text-sub);
            margin-bottom: 15px;
            letter-spacing: 1px;
        }

        .model-tags-flex {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .model-tag {
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-main);
            transition: all 0.3s ease;
        }

        .model-tag:hover {
            border-color: var(--cyan-neon);
            color: var(--cyan-neon);
            transform: translateY(-2px);
        }

        /* 模块 2: 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 30px 20px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .stat-card:hover {
            border-color: var(--pink-neon);
            transform: translateY(-5px);
            box-shadow: var(--shadow-glow);
        }

        .stat-number {
            font-size: 38px;
            font-weight: 900;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-sub);
        }

        /* 模块 3: 关于我们 / 平台介绍 */
        .about-content {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            padding: 40px;
            backdrop-filter: blur(10px);
        }

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

        .about-text p {
            margin-bottom: 18px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.8;
        }

        .about-features-list {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 25px;
        }

        .about-features-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-main);
        }

        .about-features-list li::before {
            content: "✓";
            color: var(--cyan-neon);
            font-weight: bold;
        }

        /* 模块 4: AIGC 服务卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 30px;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .service-card:hover {
            border-color: var(--purple-neon);
            background: var(--bg-card-hover);
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(157, 78, 221, 0.25);
        }

        .service-icon {
            font-size: 32px;
            margin-bottom: 20px;
            color: var(--pink-neon);
        }

        .service-title {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .service-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 20px;
        }

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

        .service-tag-item {
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 4px;
            background: rgba(0, 245, 212, 0.1);
            color: var(--cyan-neon);
            border: 1px solid rgba(0, 245, 212, 0.2);
        }

        /* 模块 5: 一站式制作 & 流程步骤 */
        .steps-wrapper {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 30px 20px;
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: var(--shadow-glow);
        }

        .step-title {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .step-desc {
            font-size: 13px;
            color: var(--text-sub);
        }

        /* 模块 6: 对比评测表格 */
        .evaluation-box {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            padding: 40px;
            overflow-x: auto;
        }

        .rating-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 42, 141, 0.1);
            border: 1px solid var(--pink-neon);
            padding: 20px 30px;
            border-radius: 12px;
            margin-bottom: 30px;
        }

        .rating-stars {
            color: #ffca28;
            font-size: 22px;
        }

        .rating-score {
            font-size: 28px;
            font-weight: 900;
            color: var(--cyan-neon);
        }

        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14px;
        }

        .eval-table th, .eval-table td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255, 42, 141, 0.15);
        }

        .eval-table th {
            background: rgba(157, 78, 221, 0.2);
            color: #fff;
            font-weight: 700;
        }

        .eval-table td {
            color: var(--text-sub);
        }

        .eval-table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
            color: var(--text-main);
        }

        .eval-table .highlight-cell {
            color: var(--cyan-neon);
            font-weight: 700;
        }

        /* 模块 7: 案例展示 (引入图片资源) */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .case-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .case-card:hover {
            border-color: var(--pink-neon);
            transform: translateY(-5px);
        }

        .case-img-wrap {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #1a0f37;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .case-body {
            padding: 20px;
        }

        .case-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .case-desc {
            font-size: 13px;
            color: var(--text-sub);
        }

        /* 模块 8: Token 比价矩阵 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .token-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 25px;
            text-align: center;
        }

        .token-model-name {
            font-size: 18px;
            font-weight: 800;
            color: var(--cyan-neon);
            margin-bottom: 10px;
        }

        .token-price {
            font-size: 26px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 5px;
        }

        .token-unit {
            font-size: 12px;
            color: var(--text-sub);
            margin-bottom: 15px;
        }

        .token-features {
            list-style: none;
            font-size: 13px;
            color: var(--text-sub);
            text-align: left;
            margin-top: 15px;
            border-top: 1px dashed rgba(255,42,141,0.2);
            padding-top: 15px;
        }

        .token-features li {
            margin-bottom: 6px;
        }

        /* 模块 9: 加盟代理 */
        .agency-box {
            background: linear-gradient(135deg, rgba(255,42,141,0.15) 0%, rgba(157,78,221,0.25) 100%);
            border: 1px solid var(--pink-neon);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
        }

        .agency-title {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 15px;
        }

        .agency-highlights {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin: 30px 0;
        }

        .agency-item {
            background: rgba(10, 5, 24, 0.6);
            border: 1px solid rgba(255, 42, 141, 0.3);
            border-radius: 12px;
            padding: 20px;
        }

        .agency-item h4 {
            color: var(--cyan-neon);
            margin-bottom: 8px;
            font-size: 16px;
        }

        .agency-item p {
            font-size: 13px;
            color: var(--text-sub);
        }

        /* 模块 10: 客户评价 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 25px;
        }

        .reviewer-info {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .reviewer-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #fff;
        }

        .reviewer-name {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
        }

        .reviewer-role {
            font-size: 12px;
            color: var(--text-sub);
        }

        .review-text {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* 模块 11: FAQ 折叠面板 */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-question {
            padding: 20px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question::after {
            content: "+";
            font-size: 20px;
            color: var(--pink-neon);
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 20px;
            border-top: 1px dashed rgba(255, 42, 141, 0.15);
        }

        /* 模块 12: 行业资讯与最新文章 */
        .articles-wrapper {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            padding: 30px;
        }

        .articles-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 20px;
            list-style: none;
        }

        .articles-links-list a {
            color: var(--cyan-neon);
            text-decoration: none;
            background: rgba(0, 245, 212, 0.08);
            padding: 8px 16px;
            border-radius: 8px;
            border: 1px solid rgba(0, 245, 212, 0.2);
            font-size: 13px;
            transition: all 0.3s ease;
        }

        .articles-links-list a:hover {
            background: rgba(0, 245, 212, 0.2);
            transform: translateY(-2px);
        }

        /* 模块 13: 联系我们与需求提交表单 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .form-box {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            padding: 35px;
        }

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

        .form-label {
            display: block;
            font-size: 13px;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 12px 15px;
            background: rgba(10, 5, 24, 0.8);
            border: 1px solid var(--border-neon);
            border-radius: 8px;
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: border-color 0.3s ease;
        }

        .form-input:focus, .form-select:focus, .form-textarea:focus {
            border-color: var(--pink-neon);
            box-shadow: 0 0 10px rgba(255, 42, 141, 0.3);
        }

        .form-textarea {
            height: 100px;
            resize: vertical;
        }

        .contact-info-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            padding: 35px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .qr-section {
            text-align: center;
            padding: 20px;
            background: rgba(10, 5, 24, 0.5);
            border-radius: 12px;
            border: 1px dashed var(--pink-neon);
            margin-top: 20px;
        }

        .qr-section img {
            max-width: 140px;
            height: auto;
            border-radius: 8px;
            margin-bottom: 8px;
        }

        .qr-tip {
            font-size: 12px;
            color: var(--text-sub);
        }

        /* 页脚区 */
        footer.site-footer {
            background: #06030e;
            border-top: 1px solid rgba(255, 42, 141, 0.2);
            padding: 50px 0 30px;
            color: var(--text-sub);
            font-size: 13px;
        }

        .footer-inner {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .footer-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .friendship-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
        }

        .friendship-links span {
            color: var(--text-main);
            font-weight: 700;
        }

        .friendship-links a {
            color: var(--text-sub);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .friendship-links a:hover {
            color: var(--pink-neon);
        }

        .copyright-bar {
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            color: #7a6b98;
        }

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

        .float-btn {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--gradient-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            box-shadow: 0 4px 15px rgba(255, 42, 141, 0.5);
            font-size: 20px;
            transition: transform 0.3s ease;
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .hero-title { font-size: 34px; }
            .stats-grid, .services-grid, .steps-wrapper, .cases-grid, .token-grid, .agency-highlights, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background: #0a0518;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-neon);
            }
            .nav-links.active {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
            }
        }

        @media (max-width: 600px) {
            .hero-title { font-size: 26px; }
            .stats-grid, .services-grid, .steps-wrapper, .cases-grid, .token-grid, .agency-highlights, .reviews-grid {
                grid-template-columns: 1fr;
            }
            .eval-table th, .eval-table td { padding: 10px; font-size: 12px; }
            section { padding: 50px 0; }
        }