/* 多彩涂鸦风格 CSS (新粗野主义融合科技感) */
        :root {
            --bg-color: #fcf9f2;
            --text-color: #121212;
            --primary: #ffde47; /* 醒目黄 */
            --secondary: #ff7675; /* 珊瑚粉红 */
            --accent: #38ef7d; /* 荧光绿 */
            --cyan: #0984e3; /* 科技蓝 */
            --dark-border: #121212;
            --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;
        }

        /* 全局排版居中容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 多彩涂鸦风格公共样式 */
        .brutal-card {
            background: #ffffff;
            border: 3px solid var(--dark-border);
            box-shadow: 6px 6px 0px var(--dark-border);
            border-radius: 12px;
            padding: 24px;
            transition: all 0.2s ease;
            position: relative;
        }

        .brutal-card:hover {
            transform: translate(-3px, -3px);
            box-shadow: 9px 9px 0px var(--dark-border);
        }

        .brutal-btn {
            display: inline-block;
            background: var(--primary);
            color: var(--text-color);
            text-decoration: none;
            font-weight: bold;
            padding: 12px 24px;
            border: 3px solid var(--dark-border);
            box-shadow: 4px 4px 0px var(--dark-border);
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.2s ease;
            text-align: center;
        }

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

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

        .brutal-badge {
            display: inline-block;
            padding: 4px 8px;
            font-weight: 900;
            font-size: 0.85rem;
            border: 2px solid var(--dark-border);
            border-radius: 4px;
            background: var(--accent);
            color: var(--text-color);
            margin-bottom: 12px;
        }

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

        .section-title {
            font-size: 2.2rem;
            font-weight: 900;
            margin-bottom: 40px;
            text-align: center;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
            padding: 8px 16px;
            background: var(--secondary);
            border: 3px solid var(--dark-border);
            box-shadow: 4px 4px 0px var(--dark-border);
            transform-origin: center;
            transform: translateX(-50%) rotate(-1deg);
        }

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

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

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

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

        .logo-text {
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--text-color);
        }

        nav ul {
            display: flex;
            list-style: none;
            gap: 20px;
        }

        nav ul li a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: bold;
            padding: 5px 10px;
            border-radius: 4px;
            transition: background 0.2s;
        }

        nav ul li a:hover {
            background: var(--primary);
        }

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

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background: var(--text-color);
        }

        /* Hero 首屏 (无任何图片) */
        .hero {
            background: radial-gradient(circle at 10% 20%, rgba(255, 222, 71, 0.15) 0%, rgba(255, 118, 117, 0.15) 90.2%);
            padding: 100px 0 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        /* 涂鸦风背景色块装饰 */
        .doodle-shape {
            position: absolute;
            border: 3px solid var(--dark-border);
            pointer-events: none;
            z-index: 1;
            opacity: 0.8;
        }

        .shape-1 {
            width: 80px;
            height: 80px;
            background: var(--primary);
            top: 15%;
            left: 5%;
            transform: rotate(15deg);
            border-radius: 12px;
        }

        .shape-2 {
            width: 100px;
            height: 100px;
            background: var(--secondary);
            bottom: 10%;
            right: 8%;
            border-radius: 50%;
        }

        .shape-3 {
            width: 60px;
            height: 60px;
            background: var(--accent);
            top: 40%;
            right: 12%;
            transform: rotate(-25deg);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 850px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 24px;
            color: var(--text-color);
        }

        .hero h1 span {
            background: var(--primary);
            padding: 2px 10px;
            border: 3px solid var(--dark-border);
            display: inline-block;
            transform: rotate(1deg);
        }

        .hero p {
            font-size: 1.2rem;
            margin-bottom: 35px;
            color: #333;
        }

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

        /* 数据指标 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 40px;
        }

        .metric-card {
            background: #ffffff;
            border: 3px solid var(--dark-border);
            box-shadow: 4px 4px 0px var(--dark-border);
            border-radius: 8px;
            padding: 20px;
            text-align: center;
        }

        .metric-num {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--cyan);
            margin-bottom: 5px;
        }

        .metric-label {
            font-size: 0.95rem;
            font-weight: bold;
            color: #555;
        }

        /* 聚合模型展现 */
        .model-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 30px;
        }

        .model-tag {
            padding: 8px 16px;
            background: #fff;
            border: 2px solid var(--dark-border);
            border-radius: 30px;
            font-weight: bold;
            box-shadow: 3px 3px 0px var(--dark-border);
            transition: all 0.2s;
        }

        .model-tag:hover {
            background: var(--accent);
            transform: translateY(-2px);
        }

        /* 常用制作场景 */
        .grid-3col {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .scene-card {
            background: #fff;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .scene-icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
        }

        /* 流程时间线 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--dark-border);
            transform: translateX(-50%);
        }

        .timeline-item {
            margin-bottom: 40px;
            position: relative;
            width: 50%;
            padding: 0 30px;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-dot {
            width: 20px;
            height: 20px;
            background: var(--primary);
            border: 3px solid var(--dark-border);
            border-radius: 50%;
            position: absolute;
            top: 5px;
            z-index: 10;
        }

        .timeline-item:nth-child(odd) .timeline-dot {
            right: -10px;
        }

        .timeline-item:nth-child(even) .timeline-dot {
            left: -10px;
        }

        /* 对比评测表格 */
        .table-responsive {
            overflow-x: auto;
            margin-top: 30px;
            border: 3px solid var(--dark-border);
            box-shadow: 6px 6px 0px var(--dark-border);
            border-radius: 12px;
            background: #fff;
        }

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

        th, td {
            padding: 16px 20px;
            border-bottom: 2px solid var(--dark-border);
            border-right: 2px solid var(--dark-border);
        }

        th {
            background: var(--primary);
            color: var(--text-color);
            font-weight: 900;
        }

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

        th:last-child, td:last-child {
            border-right: none;
        }

        .highlight-col {
            background: rgba(255, 222, 71, 0.15);
            font-weight: bold;
        }

        /* 推荐面板 */
        .rating-box {
            background: var(--accent);
            border: 3px solid var(--dark-border);
            box-shadow: 4px 4px 0 var(--dark-border);
            padding: 20px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: space-around;
            flex-wrap: wrap;
            margin-top: 30px;
        }

        .rating-num {
            font-size: 3rem;
            font-weight: 900;
            color: var(--text-color);
        }

        /* 二维网格布局 (用于图片与案例展示) */
        .case-gallery {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }

        .case-item {
            overflow: hidden;
            background: #fff;
            border: 3px solid var(--dark-border);
            box-shadow: 4px 4px 0 var(--dark-border);
            border-radius: 12px;
        }

        .case-image-wrapper {
            width: 100%;
            border-bottom: 3px solid var(--dark-border);
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #eaeaea;
        }

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

        .case-info {
            padding: 15px;
        }

        /* 表单板块 */
        .form-section {
            background: radial-gradient(circle at 90% 10%, rgba(56, 239, 125, 0.15) 0%, rgba(9, 132, 227, 0.15) 90%);
        }

        .form-wrapper {
            max-width: 650px;
            margin: 0 auto;
        }

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

        .form-group label {
            display: block;
            font-weight: bold;
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px;
            border: 3px solid var(--dark-border);
            border-radius: 8px;
            background: #fff;
            font-size: 1rem;
            font-family: inherit;
            box-shadow: 3px 3px 0 var(--dark-border);
            outline: none;
        }

        .form-control:focus {
            box-shadow: 5px 5px 0 var(--dark-border);
            background: #fffdf5;
        }

        /* FAQ折叠面板 */
        .faq-container {
            max-width: 850px;
            margin: 0 auto;
        }

        .faq-item {
            margin-bottom: 15px;
            border: 3px solid var(--dark-border);
            border-radius: 8px;
            background: #fff;
            overflow: hidden;
            box-shadow: 4px 4px 0 var(--dark-border);
        }

        .faq-header {
            padding: 18px 20px;
            font-weight: 900;
            background: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-header:hover {
            background: #fafafa;
        }

        .faq-content {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s cubic-bezier(0, 1, 0, 1);
            border-top: 0px solid var(--dark-border);
        }

        .faq-item.active .faq-content {
            padding: 18px 20px;
            max-height: 1000px;
            border-top: 3px solid var(--dark-border);
            background: #fdfdfd;
        }

        .faq-icon::before {
            content: '＋';
            font-weight: bold;
            font-size: 1.2rem;
        }

        .faq-item.active .faq-icon::before {
            content: '－';
        }

        /* 评论网格 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin-top: 40px;
        }

        .comment-card {
            background: #fff;
        }

        .comment-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .comment-avatar {
            width: 45px;
            height: 45px;
            background: var(--secondary);
            border: 2px solid var(--dark-border);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #fff;
        }

        .comment-meta h4 {
            font-size: 0.95rem;
            font-weight: bold;
        }

        .comment-meta span {
            font-size: 0.8rem;
            color: #666;
        }

        /* 最新资讯 & 友情链接 */
        .article-section {
            background: #ffffff;
        }

        .article-list {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .article-card {
            background: #fff;
            padding: 20px;
            border: 3px solid var(--dark-border);
            border-radius: 8px;
            box-shadow: 4px 4px 0 var(--dark-border);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card a {
            color: var(--cyan);
            font-weight: bold;
            text-decoration: none;
            display: inline-block;
            margin-top: 15px;
        }

        .article-card a:hover {
            text-decoration: underline;
        }

        /* 友情链接区 */
        .friendship-links {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 3px dashed var(--dark-border);
            text-align: center;
        }

        .friendship-links h4 {
            margin-bottom: 15px;
            font-size: 1.1rem;
        }

        .friendship-links a {
            margin: 0 12px;
            color: var(--text-color);
            text-decoration: none;
            font-weight: bold;
            display: inline-block;
            padding: 4px 8px;
            background: #fff;
            border: 2px solid var(--dark-border);
            border-radius: 4px;
            box-shadow: 2px 2px 0 var(--dark-border);
        }

        .friendship-links a:hover {
            background: var(--primary);
        }

        /* 底部信息区 */
        footer {
            background: #121212;
            color: #ffffff;
            padding: 60px 0 30px 0;
            border-top: 3px solid var(--dark-border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo img {
            max-width: 150px;
            margin-bottom: 15px;
            
        }

        .footer-col h3 {
            color: var(--primary);
            margin-bottom: 20px;
            font-size: 1.2rem;
            position: relative;
        }

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

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

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

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

        .qr-card {
            background: #fff;
            padding: 10px;
            border-radius: 8px;
            display: inline-block;
            border: 2px solid var(--dark-border);
            max-width: 130px;
        }

        .qr-card img {
            width: 100%;
            height: auto;
            display: block;
        }

        .footer-bottom {
            text-align: center;
            border-top: 1px solid #333;
            padding-top: 20px;
            font-size: 0.9rem;
            color: #999;
        }

        /* 浮动客服 */
        .float-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background: var(--primary);
            border: 3px solid var(--dark-border);
            border-radius: 50%;
            box-shadow: 3px 3px 0 var(--dark-border);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-weight: bold;
            font-size: 1.2rem;
            text-decoration: none;
            color: var(--text-color);
            position: relative;
        }

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

        .qr-hover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: #fff;
            padding: 12px;
            border: 3px solid var(--dark-border);
            border-radius: 8px;
            box-shadow: 4px 4px 0 var(--dark-border);
            display: none;
            width: 150px;
        }

        .float-btn:hover .qr-hover {
            display: block;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 3px solid var(--dark-border);
                padding: 20px;
                gap: 15px;
            }

            .nav-links.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .timeline::before {
                left: 20px;
            }

            .timeline-item {
                width: 100%;
                padding-left: 45px;
                padding-right: 0;
                text-align: left !important;
            }

            .timeline-item:nth-child(even) {
                left: 0;
            }

            .timeline-dot {
                left: 10px !important;
                right: auto !important;
            }
        }