/* --- Base Reset & Variables (完全匹配原列表页) --- */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: #f8fafc;
            color: #0f172a;
            line-height: 1.5;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Section title styles */
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 40px 0 16px;
        }
        .section-sub {
            color: #475569;
            margin-bottom: 24px;
        }

        /* --- Breadcrumb (纯字符实现) --- */
        .breadcrumb {
            padding: 20px 0;
            font-size: 0.9rem;
            color: #64748b;
        }
        .breadcrumb a {
            color: #2563eb;
            text-decoration: none;
        }
        .breadcrumb .separator {
            margin: 0 8px;
            color: #94a3b8;
            font-size: 0.7rem;
        }

        /* --- Page Header (完全匹配原风格) --- */
        .tools-header {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            border-radius: 32px;
            padding: 40px;
            color: white;
            margin: 20px 0 40px;
            position: relative;
            overflow: hidden;
        }
        .tools-header::before {
            content: "TOOLS";
            position: absolute;
            right: 20px;
            bottom: -20px;
            font-size: 8rem;
            font-weight: 800;
            opacity: 0.1;
            color: white;
            letter-spacing: 8px;
            line-height: 1;
        }
        .tools-header h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .tools-header p {
            font-size: 1.2rem;
            max-width: 600px;
            opacity: 0.9;
        }
        .header-stats {
            display: flex;
            gap: 30px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .header-stat-item {
            background: rgba(255,255,255,0.1);
            border-radius: 40px;
            padding: 8px 20px;
            backdrop-filter: blur(4px);
            font-weight: 500;
        }

        /* --- Tool Type Tabs (纯文本标签) --- */
        .tool-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin: 30px 0 24px;
        }
        .tool-tab {
            background: white;
            border: 1px solid #e2e8f0;
            border-radius: 40px;
            padding: 8px 20px;
            font-weight: 500;
            color: #334155;
            text-decoration: none;
            transition: all 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .tool-tab:hover {
            background: #2563eb;
            color: white;
            border-color: #2563eb;
        }
        .tool-tab.active {
            background: #2563eb;
            color: white;
            border-color: #2563eb;
        }
        /* 纯文本图标替代 */
        .tab-icon {
            font-size: 1rem;
        }

        /* --- Featured Tools (精选工具卡片) --- */
        .featured-tools {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin: 40px 0;
        }
        .featured-tool-card {
            background: white;
            border-radius: 28px;
            padding: 28px;
            border: 1px solid #e9edf2;
            box-shadow: 0 6px 14px rgba(0,0,0,0.02);
            transition: all 0.25s;
            text-decoration: none;
            color: inherit;
            display: block;
            position: relative;
            overflow: hidden;
        }
        .featured-tool-card:hover {
            transform: translateY(-4px);
            border-color: #2563eb;
            box-shadow: 0 20px 25px -8px rgba(0,0,0,0.1);
        }
        .featured-tool-card:hover .tool-demo-badge {
            background: #2563eb;
            color: white;
        }
        .tool-demo-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            background: #e6f0ff;
            color: #2563eb;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 30px;
            transition: all 0.2s;
        }
        .featured-icon {
            background: #e6f0ff;
            width: 56px;
            height: 56px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 2rem;
            color: #2563eb;
        }
        .featured-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 8px;
            padding-right: 60px;
        }
        .featured-desc {
            color: #475569;
            margin: 12px 0 16px;
            font-size: 0.95rem;
        }
        .featured-meta {
            display: flex;
            justify-content: space-between;
            border-top: 1px dashed #d1d9e6;
            padding-top: 16px;
            font-size: 0.9rem;
            color: #64748b;
        }
        .meta-highlight {
            font-weight: 700;
            color: #2563eb;
        }

        /* --- All Tools Grid (所有工具网格) --- */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin: 30px 0 40px;
        }
        .tool-card {
            background: white;
            border-radius: 24px;
            padding: 24px;
            border: 1px solid #e9edf2;
            transition: all 0.2s;
            text-decoration: none;
            color: inherit;
            display: block;
        }
        .tool-card:hover {
            border-color: #2563eb;
            box-shadow: 0 10px 15px -5px rgba(0,0,0,0.05);
        }
        .tool-icon {
            width: 48px;
            height: 48px;
            background: #f0f4fe;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 1.6rem;
            color: #2563eb;
        }
        .tool-card-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .tool-card-desc {
            color: #475569;
            font-size: 0.9rem;
            margin-bottom: 16px;
            line-height: 1.5;
        }
        .tool-card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid #eef2f6;
            padding-top: 14px;
            font-size: 0.85rem;
            color: #64748b;
        }
        .tool-type {
            background: #f1f4f9;
            padding: 4px 12px;
            border-radius: 30px;
            font-weight: 500;
        }
        .tool-stats {
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .stat-icon {
            color: #2563eb;
            margin-right: 4px;
        }

        /* --- Resource Categories (资源分类卡片) --- */
        .resource-categories {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            margin: 40px 0;
        }
        .category-card {
            background: white;
            border-radius: 24px;
            padding: 24px;
            border: 1px solid #e9edf2;
            text-align: center;
            transition: all 0.2s;
            text-decoration: none;
            color: inherit;
            display: block;
        }
        .category-card:hover {
            border-color: #2563eb;
            transform: translateY(-2px);
        }
        .category-icon {
            width: 64px;
            height: 64px;
            background: #e6f0ff;
            border-radius: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 2rem;
            color: #2563eb;
        }
        .category-title {
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 6px;
        }
        .category-count {
            color: #475569;
            font-size: 0.9rem;
        }

        /* --- Quick Demo Preview (快速演示预览区) --- */
        .demo-preview-section {
            background: white;
            border-radius: 28px;
            border: 1px solid #e9edf2;
            padding: 32px;
            margin: 40px 0;
        }
        .demo-preview-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .demo-preview-header h3 {
            font-size: 1.6rem;
            font-weight: 700;
        }
        .demo-preview-header a {
            color: #2563eb;
            text-decoration: none;
            font-weight: 500;
            padding: 8px 20px;
            border-radius: 30px;
            background: #f0f4fe;
            transition: all 0.2s;
        }
        .demo-preview-header a:hover {
            background: #2563eb;
            color: white;
        }
        .demo-preview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .demo-preview-card {
            background: #f8fafc;
            border-radius: 24px;
            padding: 24px;
        }
        .demo-preview-title {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .demo-preview-title .title-icon {
            color: #2563eb;
        }
        .demo-preview-row {
            display: flex;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px dashed #d1d9e6;
        }
        .demo-preview-row:last-child {
            border-bottom: none;
        }
        .demo-preview-label {
            color: #475569;
        }
        .demo-preview-value {
            font-weight: 600;
            color: #2563eb;
        }
        .demo-preview-button {
            display: inline-block;
            margin-top: 20px;
            padding: 10px 24px;
            background: white;
            border-radius: 30px;
            text-decoration: none;
            color: #2563eb;
            font-weight: 500;
            border: 1px solid #2563eb;
            transition: all 0.2s;
        }
        .demo-preview-button:hover {
            background: #2563eb;
            color: white;
        }

        /* --- Pagination (分页代码) --- */
        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin: 48px 0 32px;
        }
        .page-item {
            min-width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 8px;
            border-radius: 40px;
            background: white;
            border: 1px solid #e2e8f0;
            color: #334155;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.2s;
        }
        .page-item:hover {
            background: #f1f4f9;
            border-color: #2563eb;
        }
        .page-item.active {
            background: #2563eb;
            color: white;
            border-color: #2563eb;
        }
        .page-dots {
            color: #64748b;
            padding: 0 4px;
        }
        .page-prev, .page-next {
            padding: 0 16px;
            gap: 4px;
            display: flex;
            align-items: center;
        }

        /* --- FAQ Section --- */
        .faq-section {
            background: white;
            border-radius: 28px;
            padding: 32px;
            border: 1px solid #e9edf2;
            margin: 48px 0;
        }
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 24px;
        }
        .faq-item {
            border-bottom: 1px solid #eef2f6;
            padding-bottom: 20px;
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: #0f172a;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .faq-question .question-icon {
            color: #2563eb;
            font-size: 1.2rem;
        }
        .faq-answer {
            color: #475569;
            margin-left: 28px;
        }
        .faq-answer a {
            color: #2563eb;
            text-decoration: none;
        }
        .faq-answer a:hover {
            text-decoration: underline;
        }

        /* --- Disclaimer --- */
        .disclaimer {
            background: #f1f4f9;
            border-radius: 16px;
            padding: 24px;
            margin: 40px 0;
            font-size: 0.9rem;
            color: #475569;
        }
        .disclaimer-icon {
            color: #2563eb;
            margin-right: 8px;
        }

        /* --- Responsive (完全匹配原版) --- */
        @media (max-width: 900px) {
            .featured-tools {
                grid-template-columns: 1fr;
            }
            .tools-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .resource-categories {
                grid-template-columns: repeat(2, 1fr);
            }
            .demo-preview-grid {
                grid-template-columns: 1fr;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 600px) {
            .tools-header h1 {
                font-size: 2rem;
            }
            .header-stats {
                flex-direction: column;
                gap: 10px;
            }
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .resource-categories {
                grid-template-columns: 1fr;
            }
            .demo-preview-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .pagination {
                flex-wrap: wrap;
            }
        }