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

        body {
            background: linear-gradient(145deg, #f4f7fc 0%, #eef2f5 100%);
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            color: #1a2c3e;
            line-height: 1.45;
            padding: 2rem 1rem;
        }

        /* 主容器：PC端内容区宽1200px，完全居中，自适应边距 */
        .app-container {
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 28px;
            box-shadow: 0 20px 35px -12px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.02);
            overflow: hidden;
            transition: all 0.2s ease;
        }

        /* 头部样式 (品牌区 + 导航) */
        .main-header {
            background: #ffffff;
            border-bottom: 1px solid #e9edf2;
            padding: 0 2rem;
        }

        .header-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0;
            gap: 1rem;
        }

        .brand {
            display: flex;
            align-items: baseline;
            gap: 8px;
            flex-wrap: wrap;
        }

        .logo-icon {
            font-size: 1.8rem;
            line-height: 1;
        }

        .site-name {
            font-size: 1.65rem;
            font-weight: 700;
            background: linear-gradient(135deg, #1f6e8c, #2c5f8a);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            letter-spacing: -0.3px;
        }

        .site-tag {
            font-size: 0.75rem;
            background: #eef2fa;
            color: #2c6e9e;
            padding: 0.2rem 0.6rem;
            border-radius: 30px;
            font-weight: 500;
            margin-left: 6px;
        }

        /* 导航链接 */
        .nav-links {
            display: flex;
            gap: 1.8rem;
            list-style: none;
        }

        .nav-links a {
            text-decoration: none;
            font-weight: 500;
            color: #2c4b66;
            transition: 0.2s;
            font-size: 1rem;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
        }

        .nav-links a:hover {
            color: #1f6e8c;
            border-bottom-color: #1f6e8c;
        }

        /* 主体内容内边距，但表格区域无横向内边距(为了让滚动条靠近边缘舒服, 但在容器内留白) */
        .main-content {
            padding: 1.5rem 2rem 2rem 2rem;
        }

        /* 表格外围滚动容器：保证移动端横向滑动顺畅 */
        .table-wrapper {
            overflow-x: auto;
            border-radius: 20px;
            margin-top: 0.5rem;
            scrollbar-width: thin;
            -webkit-overflow-scrolling: touch;
        }

        /* 表格核心样式 */
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 680px;   /* 保证在小屏上横向滑动体验，内容足够清晰 */
            background-color: #ffffff;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
        }

        .data-table th {
            background: #f8fafd;
            color: #1f3b4c;
            font-weight: 600;
            padding: 1rem 1rem;
            font-size: 0.9rem;
            letter-spacing: 0.3px;
            border-bottom: 1.5px solid #e2e8f0;
            text-align: left;
            white-space: nowrap;
        }

        .data-table td {
            padding: 1rem 1rem;
            border-bottom: 1px solid #edf2f7;
            vertical-align: middle;
            transition: background 0.2s;
        }

        /* 让第三第四列的链接呈现代感胶囊风格 */
        .download-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #eff6ff;
            color: #1f6392;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.85rem;
            padding: 0.3rem 0.9rem;
            border-radius: 40px;
            transition: all 0.2s ease;
            border: 1px solid #dce7f5;
            white-space: nowrap;
        }

        .download-link:hover {
            background: #1f6e8c;
            color: white;
            border-color: #1f6e8c;
            transform: translateY(-1px);
            box-shadow: 0 5px 12px rgba(31, 110, 140, 0.2);
        }

        /* 备用链接微差别风格 (第四列可略有区分) */
        .download-link.mirror {
            background: #fef9e6;
            color: #b85c1a;
            border-color: #ffe1b3;
        }
        .download-link.mirror:hover {
            background: #b85c1a;
            color: white;
            border-color: #b85c1a;
        }

        /* 类型标签样式 */
        .type-badge {
            display: inline-block;
            background: #eef2ff;
            padding: 0.25rem 0.75rem;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 500;
            color: #2c5282;
            white-space: nowrap;
        }

        /* 备注样式灵活 */
        .remark-text {
            font-size: 0.85rem;
            color: #4a627a;
            max-width: 180px;
            white-space: normal;
            word-break: break-word;
        }

        /* 序号列风格 */
        .serial-num {
            font-weight: 600;
            color: #2c6e9e;
            font-feature-settings: "tnum";
            font-variant-numeric: tabular-nums;
        }

        /* 名字列突出 */
        .item-name {
            font-weight: 600;
            color: #1e2f3e;
        }

        /* 表格行悬停高亮 */
        .data-table tbody tr:hover td {
            background-color: #fafcff;
            transition: 0.1s;
        }

        /* 底部样式 */
        .main-footer {
            background: #f9fbfd;
            border-top: 1px solid #e9edf2;
            padding: 1.2rem 2rem;
            color: #5c6f87;
            font-size: 0.85rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }

        .footer-links {
            display: flex;
            gap: 1.5rem;
        }

        .footer-links a {
            color: #5f7f9e;
            text-decoration: none;
            transition: 0.2s;
        }
        .footer-links a:hover {
            color: #1f6e8c;
            text-decoration: underline;
        }

        /* 自适应调整: 小于700px 适当减少内边距，保持清爽 */
        @media (max-width: 768px) {
            body {
                padding: 1rem 0.75rem;
            }
            .main-content {
                padding: 1.25rem 1rem 1.5rem 1rem;
            }
            .main-header {
                padding: 0 1rem;
            }
            .main-footer {
                padding: 1rem 1.25rem;
                flex-direction: column;
                text-align: center;
            }
            .data-table th, .data-table td {
                padding: 0.85rem 0.75rem;
            }
            .download-link {
                padding: 0.2rem 0.7rem;
                font-size: 0.75rem;
                white-space: nowrap;
            }
            .type-badge {
                font-size: 0.7rem;
                padding: 0.2rem 0.6rem;
                white-space: nowrap;
            }
            .site-name {
                font-size: 1.4rem;
            }
            .brand {
                width: 100%;
                justify-content: space-between;
            }
            .nav-links {
                gap: 1.2rem;
            }
            .nav-links a {
                font-size: 0.9rem;
            }
        }

        /* 极小屏保持表格可读 */
        @media (max-width: 480px) {
            .data-table th, .data-table td {
                padding: 0.7rem 0.6rem;
            }
            .download-link {
                padding: 0.2rem 0.55rem;
                font-size: 0.7rem;
            }
        }

        /* 自定义美化滚动条 */
        .table-wrapper::-webkit-scrollbar {
            height: 8px;
            width: 8px;
        }
        .table-wrapper::-webkit-scrollbar-track {
            background: #eef2f5;
            border-radius: 12px;
        }
        .table-wrapper::-webkit-scrollbar-thumb {
            background: #cbdae9;
            border-radius: 12px;
        }
        .table-wrapper::-webkit-scrollbar-thumb:hover {
            background: #9dafc4;
        }

        /* 辅助文本提示工具 */
        .info-note {
            margin-top: 1rem;
            font-size: 0.75rem;
            color: #7f8fa4;
            text-align: right;
            border-top: 1px dashed #e2edf7;
            padding-top: 0.8rem;
        }