/* 基础重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
        }

        :root {
            --bg-color: #FAF8F5; /* 米白 */
            --text-color: #1A1A1A;
            --primary: #FFDE4D; /* 涂鸦黄 */
            --secondary: #FF6B8B; /* 亮粉 */
            --accent: #4ECCA3; /* 亮绿 */
            --blue: #54A0FF; /* 亮蓝 */
            --card-bg: #FFFFFF;
            --border-width: 3px;
        }

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

        /* 多彩涂鸦风格的通用类 */
        .sketch-border {
            border: var(--border-width) solid var(--text-color);
            box-shadow: 6px 6px 0px var(--text-color);
            border-radius: 12px;
        }

        .btn-sketch {
            display: inline-block;
            padding: 12px 24px;
            font-weight: 800;
            text-decoration: none;
            color: var(--text-color);
            border: var(--border-width) solid var(--text-color);
            box-shadow: 4px 4px 0px var(--text-color);
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.15s ease-in-out;
            text-align: center;
        }

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

        .btn-primary { background-color: var(--primary); }
        .btn-secondary { background-color: var(--secondary); color: #fff; }
        .btn-accent { background-color: var(--accent); }
        .btn-blue { background-color: var(--blue); }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

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

        .section-title {
            font-size: 2.2rem;
            font-weight: 900;
            text-align: center;
            margin-bottom: 40px;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
            padding: 5px 15px;
            background: var(--primary);
            border: var(--border-width) solid var(--text-color);
            box-shadow: 4px 4px 0px var(--text-color);
            transform-origin: center;
            transform: translateX(-50%) rotate(-1deg);
        }

        /* 顶部导航 */
        header {
            background-color: var(--bg-color);
            border-bottom: var(--border-width) solid var(--text-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 10px 0;
        }

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

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

        .ai-page-logo {
            max-height: 50px;
            width: auto;
        }

        .logo-text {
            font-weight: 900;
            font-size: 1.4rem;
            color: var(--text-color);
        }

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

        .nav-links a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 700;
            font-size: 0.95rem;
            transition: color 0.2s;
        }

        .nav-links a:hover {
            color: var(--secondary);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: 2px solid var(--text-color);
            padding: 8px;
            border-radius: 6px;
            background: var(--primary);
        }

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

        /* Hero首屏 - 涂鸦块设计，无图 */
        .hero {
            background-color: #FFFDEE;
            text-align: center;
            padding: 100px 0;
            border-bottom: var(--border-width) solid var(--text-color);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: "✦ AIGC ✦";
            position: absolute;
            top: 10%;
            left: 5%;
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--secondary);
            transform: rotate(-15deg);
        }

        .hero::after {
            content: "★ 避坑指南 ★";
            position: absolute;
            bottom: 12%;
            right: 5%;
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--accent);
            transform: rotate(10deg);
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 950;
            line-height: 1.2;
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

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

        .hero-subtitle {
            font-size: 1.25rem;
            max-width: 800px;
            margin: 0 auto 40px auto;
            color: #444;
            font-weight: 500;
        }

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

        /* 关于我们 & 技术标准 */
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.8rem;
            font-weight: 900;
            margin-bottom: 15px;
        }

        .about-content p {
            margin-bottom: 20px;
            color: #444;
        }

        .standard-box {
            background: var(--primary);
            padding: 30px;
            border-radius: 12px;
        }

        .standard-box h4 {
            font-size: 1.4rem;
            font-weight: 900;
            margin-bottom: 15px;
        }

        /* 服务体系与能力卡片 */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 20px;
        }

        .service-card {
            background: var(--card-bg);
            padding: 30px;
            transition: transform 0.2s ease;
        }

        .service-card:hover {
            transform: translateY(-5px);
        }

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

        .service-card h3 {
            font-size: 1.4rem;
            font-weight: 900;
            margin-bottom: 12px;
        }

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

        .stat-item {
            background: #FFF;
            padding: 20px;
            text-align: center;
        }

        .stat-num {
            font-size: 2.5rem;
            font-weight: 950;
            color: var(--secondary);
        }

        .stat-label {
            font-weight: 700;
            font-size: 0.95rem;
        }

        /* 制作流程 & 服务全流程 */
        .flow-timeline {
            position: relative;
            padding-left: 30px;
            border-left: 4px dashed var(--text-color);
            margin: 40px auto 0 auto;
            max-width: 800px;
        }

        .flow-step {
            position: relative;
            margin-bottom: 40px;
            background: #fff;
            padding: 20px;
        }

        .flow-step::before {
            content: "";
            position: absolute;
            left: -39px;
            top: 25px;
            width: 14px;
            height: 14px;
            background: var(--secondary);
            border: 3px solid var(--text-color);
            border-radius: 50%;
        }

        .flow-step h4 {
            font-size: 1.25rem;
            font-weight: 900;
            margin-bottom: 10px;
        }

        /* 行业解决方案与智能匹配表单 */
        .solution-section {
            background: #F0F9FF;
            border-top: var(--border-width) solid var(--text-color);
            border-bottom: var(--border-width) solid var(--text-color);
        }

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

        @media (max-width: 900px) {
            .solution-grid {
                grid-template-columns: 1fr;
            }
        }

        .form-container {
            background: #FFF;
            padding: 40px;
        }

        .form-container h3 {
            font-size: 1.6rem;
            font-weight: 900;
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 15px;
        }

        .form-group label {
            display: block;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .form-control {
            width: 100%;
            padding: 10px 15px;
            border: 2px solid var(--text-color);
            border-radius: 8px;
            font-size: 0.95rem;
            background: #FAFAFA;
        }

        .form-control:focus {
            outline: none;
            background: #FFF;
            border-color: var(--blue);
        }

        /* Token比价参考表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            margin-top: 30px;
            border: var(--border-width) solid var(--text-color);
            border-radius: 12px;
            box-shadow: 6px 6px 0px var(--text-color);
        }

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

        th, td {
            padding: 15px 20px;
            border-bottom: 2px solid var(--text-color);
        }

        th {
            background-color: var(--primary);
            font-weight: 800;
            color: var(--text-color);
        }

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

        .badge-green {
            background: var(--accent);
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 700;
            font-size: 0.8rem;
            border: 1px solid var(--text-color);
        }

        /* 客户案例中心 - 图片展示 */
        .case-gallery {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }

        .case-item {
            background: #FFF;
            padding: 15px;
        }

        .case-item img {
            width: 100%;
            height: auto;
            border: 2px solid var(--text-color);
            border-radius: 8px;
            display: block;
            margin-bottom: 12px;
        }

        .case-item h4 {
            font-weight: 800;
            margin-bottom: 6px;
        }

        /* 对比评测 */
        .rating-box {
            text-align: center;
            background: var(--secondary);
            color: #FFF;
            padding: 30px;
            margin-bottom: 40px;
        }

        .rating-score {
            font-size: 4rem;
            font-weight: 950;
            line-height: 1;
        }

        .rating-stars {
            font-size: 2rem;
            color: var(--primary);
            margin: 10px 0;
        }

        /* 帮助中心 & 自助排查 & 术语百科 */
        .help-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .help-card {
            background: #fff;
            padding: 25px;
        }

        .help-card ul {
            list-style: none;
            margin-top: 15px;
        }

        .help-card li {
            margin-bottom: 10px;
            font-size: 0.9rem;
        }

        .help-card li strong {
            background: var(--primary);
            padding: 1px 4px;
            font-size: 0.85rem;
        }

        /* FAQ折叠面板 */
        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            margin-bottom: 15px;
            background: #FFF;
        }

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

        .faq-header::after {
            content: "+";
            font-size: 1.5rem;
            transition: transform 0.2s;
        }

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

        .faq-content {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease-out, padding 0.25s ease-out;
            color: #555;
            font-size: 0.95rem;
            border-top: 0px solid var(--text-color);
        }

        .faq-item.active .faq-content {
            padding: 15px 20px 25px 20px;
            border-top: 2px solid var(--text-color);
        }

        /* 用户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .review-card {
            background: #FFF;
            padding: 30px;
            position: relative;
        }

        .review-card::before {
            content: "“";
            font-size: 4rem;
            color: var(--primary);
            position: absolute;
            top: 10px;
            left: 15px;
            line-height: 1;
            opacity: 0.3;
        }

        .review-meta {
            margin-top: 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            font-weight: 700;
        }

        .review-user {
            color: var(--secondary);
        }

        /* 知识库 */
        .article-list {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 15px;
            margin-top: 30px;
        }

        .article-list li a {
            display: block;
            padding: 15px;
            background: #fff;
            color: var(--text-color);
            font-weight: 700;
            text-decoration: none;
            transition: all 0.2s;
        }

        .article-list li a:hover {
            background: var(--accent);
            transform: translate(-2px, -2px);
        }

        /* 联系我们 & 页脚 */
        .contact-section {
            background: #FFE5E5;
            border-top: var(--border-width) solid var(--text-color);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: flex-start;
        }

        @media (max-width: 900px) {
            .contact-grid {
                grid-template-columns: 1fr;
            }
        }

        .contact-info-box {
            background: #FFF;
            padding: 40px;
        }

        .contact-info-list {
            margin: 25px 0;
            list-style: none;
        }

        .contact-info-list li {
            margin-bottom: 15px;
            font-size: 1.05rem;
        }

        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 25px;
            flex-wrap: wrap;
        }

        .qr-item {
            text-align: center;
            background: #FFF;
            padding: 15px;
            border: 2px solid var(--text-color);
            border-radius: 8px;
            width: 150px;
        }

        .qr-item img {
            width: 100%;
            height: auto;
            margin-bottom: 8px;
        }

        .qr-item p {
            font-size: 0.85rem;
            font-weight: 700;
        }

        footer {
            background: #1A1A1A;
            color: #FFF;
            padding: 50px 0 20px 0;
            border-top: var(--border-width) solid var(--text-color);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }

        .footer-col h5 {
            font-size: 1.1rem;
            font-weight: 800;
            margin-bottom: 15px;
            color: var(--primary);
        }

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

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

        .footer-col a {
            color: #CCC;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            border-top: 1px solid #333;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.85rem;
            color: #999;
        }

        .footer-bottom a {
            color: #999;
            text-decoration: none;
            margin-left: 15px;
        }

        /* 浮动组件与返回顶部 */
        .float-panel {
            position: fixed;
            bottom: 30px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 999;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background: var(--primary);
            border: 2px solid var(--text-color);
            box-shadow: 2px 2px 0px var(--text-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-weight: 800;
            text-decoration: none;
            color: var(--text-color);
            font-size: 1.2rem;
            transition: all 0.2s;
        }

        .float-btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 4px 4px 0px var(--text-color);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--bg-color);
                border-bottom: var(--border-width) solid var(--text-color);
                padding: 20px;
                gap: 15px;
                box-shadow: 0 4px 10px rgba(0,0,0,0.1);
            }

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

            .menu-toggle {
                display: flex;
            }

            .about-grid {
                grid-template-columns: 1fr;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .section-title {
                font-size: 1.8rem;
            }
        }