/* 多彩涂鸦 & 新波普艺术视觉体系 */
        :root {
            --primary: #ffe600; /* 亮黄 */
            --secondary: #ff477e; /* 亮粉 */
            --info: #00f0ff; /* 亮蓝 */
            --accent: #a100ff; /* 亮紫 */
            --dark: #111111; /* 深黑 */
            --light: #f8f8fa; /* 浅底 */
            --card-bg: #ffffff;
            --font-main: 'Arial Black', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        }

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

        body {
            font-family: var(--font-main);
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
            background-image: 
                radial-gradient(var(--dark) 10%, transparent 10%),
                radial-gradient(var(--dark) 10%, transparent 10%);
            background-size: 24px 24px;
            background-position: 0 0, 12px 12px;
            background-color: #fafaf5; /* 微微泛黄的涂鸦底色 */
        }

        a {
            color: var(--dark);
            text-decoration: none;
            transition: all 0.2s ease;
        }

        /* 统一容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 涂鸦风格通用标题 */
        .section-title {
            font-size: 2.5rem;
            text-align: center;
            margin-bottom: 48px;
            text-transform: uppercase;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%) rotate(-1deg);
            background: var(--primary);
            padding: 10px 20px;
            border: 3px solid var(--dark);
            box-shadow: 5px 5px 0 var(--dark);
        }

        .section-title::after {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            left: -8px;
            top: 8px;
            border: 3px solid var(--dark);
            background: var(--secondary);
            z-index: -1;
        }

        /* 粗框硬阴影按钮 */
        .btn-brutal {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            font-size: 1.1rem;
            font-weight: 900;
            text-align: center;
            background: var(--secondary);
            color: #fff;
            border: 3px solid var(--dark);
            box-shadow: 4px 4px 0 var(--dark);
            cursor: pointer;
            transition: transform 0.1s ease, box-shadow 0.1s ease;
        }

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

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

        .btn-brutal.yellow {
            background: var(--primary);
            color: var(--dark);
        }

        .btn-brutal.cyan {
            background: var(--info);
            color: var(--dark);
        }

        /* 导航栏 */
        header {
            background: #fff;
            border-bottom: 4px solid var(--dark);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 16px 0;
        }

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

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

        .logo-area img {
            max-height: 48px;
            border: 2px solid var(--dark);
        }

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

        .nav-menu a {
            font-weight: bold;
            padding: 6px 12px;
            border: 2px solid transparent;
        }

        .nav-menu a:hover {
            background: var(--primary);
            border-color: var(--dark);
            transform: rotate(-1deg);
        }

        .mobile-menu-btn {
            display: none;
            font-size: 24px;
            background: none;
            border: none;
            cursor: pointer;
        }

        /* Hero 首屏 - 无任何图片资源 */
        .hero {
            padding: 100px 0 80px 0;
            background: linear-gradient(135deg, #fff7ad 0%, #ffa9c4 100%);
            border-bottom: 4px solid var(--dark);
            text-align: center;
            position: relative;
        }

        .hero-badge {
            background: var(--info);
            color: var(--dark);
            padding: 6px 16px;
            border: 2px solid var(--dark);
            display: inline-block;
            margin-bottom: 24px;
            transform: rotate(2deg);
            font-weight: 900;
            box-shadow: 3px 3px 0 var(--dark);
        }

        .hero h1 {
            font-size: 3.5rem;
            line-height: 1.2;
            margin-bottom: 24px;
            text-shadow: 2px 2px 0 var(--secondary);
            -webkit-text-stroke: 1px var(--dark);
        }

        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 36px auto;
            color: #333;
            font-weight: bold;
        }

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

        /* 数据指标卡片 */
        .stats-section {
            padding: 60px 0;
            background: var(--dark);
            color: #fff;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
        }

        .stat-card {
            background: #222;
            border: 3px solid #fff;
            padding: 30px 20px;
            text-align: center;
            position: relative;
            transform: rotate(1deg);
        }

        .stat-card:nth-child(even) {
            transform: rotate(-1deg);
        }

        .stat-num {
            font-size: 3.5rem;
            color: var(--primary);
            font-weight: 900;
            margin-bottom: 10px;
        }

        .stat-label {
            font-size: 1.1rem;
            font-weight: bold;
            color: #ccc;
        }

        /* 普通卡片与板块 */
        section {
            padding: 80px 0;
            border-bottom: 4px solid var(--dark);
        }

        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .brutal-card {
            background: var(--card-bg);
            border: 3px solid var(--dark);
            box-shadow: 6px 6px 0 var(--dark);
            padding: 30px;
            transition: all 0.2s ease;
        }

        .brutal-card:hover {
            transform: translate(-4px, -4px);
            box-shadow: 10px 10px 0 var(--dark);
        }

        .brutal-card h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            display: inline-block;
            background: var(--info);
            padding: 4px 10px;
            border: 2px solid var(--dark);
        }

        .brutal-card p {
            color: #444;
            font-size: 0.95rem;
        }

        /* 平台支持徽章云 */
        .platform-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 24px;
            justify-content: center;
        }

        .badge-item {
            background: #fff;
            border: 2px solid var(--dark);
            padding: 6px 12px;
            font-weight: bold;
            box-shadow: 2px 2px 0 var(--dark);
            font-size: 0.9rem;
        }

        .badge-item:nth-child(4n+1) { background: var(--primary); }
        .badge-item:nth-child(4n+2) { background: var(--secondary); color: #fff; }
        .badge-item:nth-child(4n+3) { background: var(--info); }
        .badge-item:nth-child(4n+4) { background: var(--accent); color: #fff; }

        /* 流程步骤 */
        .step-timeline {
            display: flex;
            flex-direction: column;
            gap: 40px;
            position: relative;
            max-width: 800px;
            margin: 40px auto 0 auto;
        }

        .step-item {
            display: flex;
            gap: 24px;
            background: #fff;
            border: 3px solid var(--dark);
            padding: 24px;
            box-shadow: 5px 5px 0 var(--dark);
            align-items: center;
        }

        .step-num {
            background: var(--accent);
            color: #fff;
            border: 3px solid var(--dark);
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 900;
            flex-shrink: 0;
            box-shadow: 3px 3px 0 var(--dark);
        }

        .step-content h4 {
            font-size: 1.3rem;
            margin-bottom: 8px;
        }

        /* 对比评测表格 */
        .table-responsive {
            overflow-x: auto;
            margin-top: 40px;
            border: 3px solid var(--dark);
            box-shadow: 6px 6px 0 var(--dark);
        }

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

        .brutal-table th, .brutal-table td {
            padding: 16px 20px;
            border: 2px solid var(--dark);
            font-weight: bold;
        }

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

        .brutal-table tr:nth-child(even) {
            background: #fafafa;
        }

        .highlight-row {
            background: #fff9d0 !important;
        }

        /* FAQ 折叠面板 */
        .faq-accordion {
            max-width: 850px;
            margin: 40px auto 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            border: 3px solid var(--dark);
            background: #fff;
            box-shadow: 4px 4px 0 var(--dark);
        }

        .faq-header {
            padding: 20px;
            background: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.1rem;
            font-weight: 900;
            user-select: none;
            transition: background-color 0.2s ease;
        }

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

        .faq-header::after {
            content: '+';
            font-size: 1.5rem;
            font-weight: bold;
        }

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

        .faq-item.active .faq-header {
            background: var(--info);
            border-bottom: 3px solid var(--dark);
        }

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

        .faq-content {
            padding: 20px;
            font-size: 1rem;
            color: #333;
            font-weight: normal;
        }

        /* 评论区 */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 40px;
        }

        .review-card {
            background: #fff;
            border: 3px solid var(--dark);
            padding: 24px;
            box-shadow: 4px 4px 0 var(--dark);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-text {
            font-style: italic;
            margin-bottom: 20px;
            color: #444;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 2px dashed var(--dark);
            padding-top: 12px;
        }

        .user-avatar {
            width: 48px;
            height: 48px;
            background: var(--accent);
            border: 2px solid var(--dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
        }

        /* 案例图片展示 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 40px;
        }

        .case-card {
            border: 3px solid var(--dark);
            background: #fff;
            box-shadow: 5px 5px 0 var(--dark);
            overflow: hidden;
        }

        .case-img-container {
            border-bottom: 3px solid var(--dark);
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #eee;
        }

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

        .case-info {
            padding: 20px;
        }

        .case-info h4 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }

        /* 表单区域 */
        .form-section {
            background: var(--primary);
        }

        .form-wrapper {
            max-width: 650px;
            margin: 0 auto;
            background: #fff;
            border: 4px solid var(--dark);
            box-shadow: 8px 8px 0 var(--dark);
            padding: 40px 30px;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 900;
        }

        .form-control {
            width: 100%;
            padding: 12px;
            font-size: 1rem;
            border: 3px solid var(--dark);
            font-family: inherit;
        }

        .form-control:focus {
            outline: none;
            background: #fffde6;
        }

        /* 最新文章 */
        .articles-list {
            list-style: none;
            margin-top: 30px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .article-item {
            background: #fff;
            border: 3px solid var(--dark);
            padding: 20px;
            box-shadow: 4px 4px 0 var(--dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }

        .article-item a {
            font-weight: bold;
            font-size: 1.1rem;
        }

        .article-item a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }

        /* 友情链接与页脚 */
        footer {
            background: var(--dark);
            color: #fff;
            padding: 60px 0 30px 0;
            border-top: 4px solid var(--dark);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo img {
            border: 2px solid #fff;
            margin-bottom: 16px;
        }

        .footer-links h5 {
            color: var(--info);
            font-size: 1.2rem;
            margin-bottom: 20px;
            border-bottom: 2px solid #333;
            padding-bottom: 8px;
        }

        .footer-links ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #ccc;
        }

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

        .friend-links-area {
            border-top: 2px dashed #444;
            padding-top: 30px;
            margin-top: 30px;
        }

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

        .friend-links a {
            background: #222;
            border: 1px solid #444;
            padding: 6px 12px;
            color: #aaa;
            font-size: 0.85rem;
        }

        .friend-links a:hover {
            background: var(--primary);
            color: var(--dark);
            border-color: var(--dark);
        }

        .copyright-area {
            text-align: center;
            border-top: 2px solid #222;
            padding-top: 30px;
            font-size: 0.9rem;
            color: #888;
        }

        /* 浮动客服 */
        .float-contact {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 60px;
            height: 60px;
            background: var(--primary);
            border: 3px solid var(--dark);
            box-shadow: 3px 3px 0 var(--dark);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
        }

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

        .qr-popover {
            position: absolute;
            bottom: 70px;
            right: 0;
            background: #fff;
            border: 3px solid var(--dark);
            padding: 16px;
            box-shadow: 5px 5px 0 var(--dark);
            display: none;
            text-align: center;
            width: 180px;
        }

        .qr-popover img {
            width: 100%;
            height: auto;
            border: 1px solid #ddd;
        }

        .qr-popover p {
            color: var(--dark);
            font-size: 0.8rem;
            margin-top: 8px;
            font-weight: bold;
        }

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

        /* 响应式适配 */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #fff;
                border-bottom: 4px solid var(--dark);
                padding: 20px;
                gap: 12px;
            }
            .nav-menu.active {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }