/* 多彩涂鸦风格 (Graffiti / Neubrutalism) */
        :root {
            --bg-color: #fdfcf7;
            --text-color: #1e1e1e;
            --border-color: #1e1e1e;
            --primary-yellow: #ffe600;
            --primary-pink: #ff6b8b;
            --primary-blue: #4da6ff;
            --primary-green: #6eff8a;
            --card-shadow: 6px 6px 0px #1e1e1e;
            --card-shadow-hover: 10px 10px 0px #1e1e1e;
            --font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

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

        body {
            background-color: var(--bg-color);
            color: var(--text-color);
            font-family: var(--font-family);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 统一外层居中容器 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        section {
            padding: 80px 0;
            border-bottom: 3px solid var(--border-color);
            position: relative;
        }

        /* 涂鸦风公共组件 */
        .brutal-card {
            background: #ffffff;
            border: 3px solid var(--border-color);
            border-radius: 16px;
            padding: 24px;
            box-shadow: var(--card-shadow);
            transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            position: relative;
            overflow: hidden;
        }

        .brutal-card:hover {
            transform: translate(-4px, -4px);
            box-shadow: var(--card-shadow-hover);
        }

        .brutal-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-weight: 800;
            text-decoration: none;
            color: var(--text-color);
            background: var(--primary-yellow);
            border: 3px solid var(--border-color);
            border-radius: 12px;
            box-shadow: 4px 4px 0px var(--border-color);
            cursor: pointer;
            transition: all 0.1s ease;
        }

        .brutal-btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 6px 6px 0px var(--border-color);
        }

        .brutal-btn:active {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0px var(--border-color);
        }

        .badge {
            display: inline-block;
            padding: 6px 14px;
            font-size: 14px;
            font-weight: 700;
            border: 2px solid var(--border-color);
            border-radius: 20px;
            background: var(--primary-green);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 900;
            text-transform: uppercase;
            margin-bottom: 40px;
            display: inline-block;
            position: relative;
            z-index: 1;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: -4px;
            width: 108%;
            height: 14px;
            background: var(--primary-blue);
            z-index: -1;
            transform: rotate(-1deg);
        }

        /* 顶部导航 */
        header {
            background: #ffffff;
            border-bottom: 3px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 15px 0;
        }

        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: var(--text-color);
            font-weight: 900;
            font-size: 24px;
        }

        .ai-page-logo {
            height: 45px;
            width: auto;
        }

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

        .nav-links a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 700;
            font-size: 16px;
            padding: 6px 12px;
            border-radius: 8px;
            transition: all 0.2s;
        }

        .nav-links a:hover {
            background: var(--primary-yellow);
            border: 2px solid var(--border-color);
        }

        .menu-toggle {
            display: none;
            font-size: 28px;
            background: none;
            border: none;
            cursor: pointer;
        }

        /* Hero首屏 - 纯文字/几何卡片，绝无图片 */
        .hero {
            background: radial-gradient(circle at 10% 20%, rgba(255, 230, 0, 0.15) 0%, rgba(255, 107, 139, 0.1) 90.2%);
            padding: 100px 0;
            text-align: center;
        }

        .hero-h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 24px;
            color: var(--text-color);
        }

        .hero-h1 span {
            background: var(--primary-yellow);
            padding: 0 10px;
            border: 3px solid var(--border-color);
            display: inline-block;
            transform: rotate(-1deg);
            box-shadow: 4px 4px 0px var(--border-color);
        }

        .hero-desc {
            font-size: 20px;
            max-width: 800px;
            margin: 0 auto 40px auto;
            font-weight: 500;
            color: #4a4a4a;
        }

        .hero-actions {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-metrics {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 60px;
        }

        .metric-card {
            background: #ffffff;
            border: 3px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            box-shadow: 4px 4px 0px var(--border-color);
            text-align: center;
        }

        .metric-card .num {
            font-size: 36px;
            font-weight: 900;
            color: var(--primary-pink);
            display: block;
            margin-bottom: 8px;
        }

        .metric-card .label {
            font-size: 14px;
            font-weight: 700;
            color: #666;
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .about-tag {
            padding: 6px 12px;
            background: #ffffff;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            font-weight: 700;
            font-size: 14px;
        }

        /* AIGC服务体系 & 行业解决方案 */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .card-icon {
            font-size: 40px;
            margin-bottom: 16px;
        }

        /* 制作流程 & 时间线 */
        .timeline {
            position: relative;
            padding-left: 30px;
            border-left: 4px dashed var(--border-color);
            margin-left: 20px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 40px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -44px;
            top: 5px;
            width: 24px;
            height: 24px;
            background: var(--primary-yellow);
            border: 3px solid var(--border-color);
            border-radius: 50%;
        }

        /* 服务网络 */
        .map-section {
            background: var(--bg-color);
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
        }

        .city-badge-container {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .city-badge {
            background: #ffffff;
            border: 2px solid var(--border-color);
            padding: 8px 16px;
            border-radius: 12px;
            font-weight: 700;
            box-shadow: 2px 2px 0 var(--border-color);
        }

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

        .case-image-wrapper {
            border: 3px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 16px;
            background: #eee;
            aspect-ratio: 16/9;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

        /* 对比评测 */
        .comparison-table-wrapper {
            overflow-x: auto;
            border: 3px solid var(--border-color);
            border-radius: 16px;
            background: #ffffff;
            box-shadow: var(--card-shadow);
        }

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

        .comparison-table th, .comparison-table td {
            padding: 16px;
            border-bottom: 3px solid var(--border-color);
            border-right: 2px solid var(--border-color);
            font-weight: 700;
        }

        .comparison-table th {
            background: var(--primary-blue);
        }

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

        .rating-box {
            background: var(--primary-pink);
            padding: 20px;
            border: 3px solid var(--border-color);
            border-radius: 12px;
            margin-top: 30px;
            text-align: center;
            font-weight: 900;
            font-size: 24px;
            box-shadow: 4px 4px 0 var(--border-color);
        }

        /* Token比价 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .price-card {
            background: #ffffff;
            border: 3px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            box-shadow: 4px 4px 0 var(--border-color);
        }

        .price-card.cheap {
            background: var(--primary-green);
        }

        /* 培训版块 */
        .train-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        /* FAQ折叠面板 */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            margin-bottom: 16px;
            border: 3px solid var(--border-color);
            border-radius: 12px;
            background: #ffffff;
            box-shadow: 4px 4px 0 var(--border-color);
            overflow: hidden;
        }

        .faq-header {
            padding: 20px;
            background: #ffffff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 800;
            user-select: none;
        }

        .faq-header::after {
            content: '+';
            font-size: 24px;
            transition: transform 0.2s;
        }

        .faq-item.active .faq-header::after {
            content: '-';
        }

        .faq-content {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.2s ease-out, padding 0.2s ease-out;
            font-weight: 500;
            color: #555;
            background: #fafafa;
        }

        .faq-item.active .faq-content {
            padding: 20px;
            max-height: 200px;
            border-top: 2px solid var(--border-color);
        }

        /* 客户评论 */
        .comment-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .comment-author {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 16px;
            font-weight: 700;
        }

        .author-avatar {
            width: 40px;
            height: 40px;
            background: var(--primary-yellow);
            border: 2px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
        }

        /* 表单与联系我们 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: flex-start;
        }

        .brutal-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .brutal-input, .brutal-select, .brutal-textarea {
            width: 100%;
            padding: 12px;
            border: 3px solid var(--border-color);
            border-radius: 8px;
            font-family: var(--font-family);
            font-weight: 700;
            background: #ffffff;
            outline: none;
        }

        .brutal-input:focus, .brutal-select:focus, .brutal-textarea:focus {
            background: #fffdf0;
        }

        .qr-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 30px;
            background: var(--primary-blue);
            border: 3px solid var(--border-color);
            border-radius: 16px;
            box-shadow: var(--card-shadow);
        }

        .qr-image-container {
            width: 180px;
            height: 180px;
            background: #ffffff;
            border: 3px solid var(--border-color);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            overflow: hidden;
        }

        .qr-image-container img {
            width: 90%;
            height: 90%;
            object-fit: contain;
        }

        /* 词云 & 百科 */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 24px;
        }

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

        /* 页脚 */
        footer {
            background: #1e1e1e;
            color: #ffffff;
            padding: 60px 0 30px 0;
            border-top: 5px solid var(--border-color);
        }

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

        .footer-logo {
            font-size: 24px;
            font-weight: 900;
            margin-bottom: 16px;
            color: var(--primary-yellow);
        }

        .footer-links-col h4 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--primary-blue);
        }

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

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

        .footer-links-col ul li a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.2s;
        }

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

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 10px;
        }

        .friend-links a {
            color: #aaa;
            text-decoration: none;
            background: #333;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 13px;
        }

        .friend-links a:hover {
            background: var(--primary-pink);
            color: #000;
        }

        .footer-bottom {
            border-top: 2px solid #333;
            padding-top: 20px;
            text-align: center;
            font-size: 14px;
            color: #888;
        }

        /* 浮动工具栏 */
        .float-tool {
            position: fixed;
            right: 24px;
            bottom: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            z-index: 99;
        }

        .float-item {
            width: 50px;
            height: 50px;
            background: #ffffff;
            border: 3px solid var(--border-color);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 3px 3px 0 var(--border-color);
            font-size: 24px;
            text-decoration: none;
            color: var(--text-color);
            position: relative;
        }

        .float-item:hover {
            transform: translate(-2px, -2px);
            box-shadow: 5px 5px 0 var(--border-color);
        }

        .float-item .popover {
            display: none;
            position: absolute;
            right: 65px;
            bottom: 0;
            background: #ffffff;
            border: 3px solid var(--border-color);
            padding: 16px;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            width: 200px;
            text-align: center;
        }

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

        .popover img {
            width: 100%;
            height: auto;
            border: 2px solid var(--border-color);
            border-radius: 6px;
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .grid-3, .case-grid, .comment-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-metrics {
                grid-template-columns: repeat(2, 1fr);
            }
            .price-grid, .encyclopedia-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            section {
                padding: 60px 0;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 78px;
                left: 0;
                width: 100%;
                background: #ffffff;
                border-bottom: 3px solid var(--border-color);
                padding: 20px;
                gap: 15px;
            }
            .nav-links.active {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
            .hero-h1 {
                font-size: 32px;
            }
            .about-grid, .network-grid, .contact-layout, .train-grid {
                grid-template-columns: 1fr;
            }
            .grid-3, .case-grid, .comment-grid, .price-grid, .encyclopedia-grid {
                grid-template-columns: 1fr;
            }
            .hero-metrics {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }