/* 全局样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', system-ui, sans-serif;
        }

        /* 自定义变量 */
        :root {
            --color-primary: #165DFF;
            --color-secondary: #36CFC9;
            --color-dark: #1D2129;
            --color-light: #F2F3F5;
            --color-gray-100: #F7F8FA;
            --color-gray-200: #E5E6EB;
            --color-gray-300: #C9CDD4;
            --color-gray-400: #86909C;
            --color-gray-500: #4E5969;
            --color-gray-600: #272E3B;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --transition: all 0.3s ease;
        }

        /* 基础样式 */
        body {
            background-color: var(--color-gray-100);
            color: var(--color-dark);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .container {
            width: 100%;
            padding-right: 1rem;
            padding-left: 1rem;
            margin-right: auto;
            margin-left: auto;
        }

        @media (min-width: 640px) {
            .container {
                max-width: 640px;
            }
        }

        @media (min-width: 768px) {
            .container {
                max-width: 768px;
            }
        }

        @media (min-width: 1024px) {
            .container {
                max-width: 1024px;
            }
        }

        @media (min-width: 1280px) {
            .container {
                max-width: 1280px;
            }
        }

        /* 头部样式 */
        header {
            background-color: white;
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 50;
        }

        .header-content {
            padding: 1rem;
            display: flex;
            flex-direction: column;
        }

        @media (min-width: 768px) {
            .header-content {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }
        }

        .logo-container {
            display: flex;
            align-items: center;
            margin-bottom: 1rem;
        }

        @media (min-width: 768px) {
            .logo-container {
                margin-bottom: 0;
            }
        }

        .logo {
            height: 2rem;
            margin-right: 0.75rem;
        }

        .site-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-dark);
        }

        /* 搜索框样式 */
        .search-container {
            width: 100%;
            max-width: 48rem;
        }

        @media (min-width: 768px) {
            .search-container {
                width: auto;
            }
        }

        .search-wrapper {
            display: flex;
            background-color: white;
            border: 1px solid var(--color-gray-200);
            border-radius: 0.5rem;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        #searchEngine {
            padding: 0.5rem 0.75rem;
            background-color: var(--color-light);
            border-right: 1px solid var(--color-gray-200);
            border: none;
            outline: none;
            font-size: 0.875rem;
            color: var(--color-gray-600);
        }

        #searchInput {
            flex: 1;
            padding: 0.5rem 1rem;
            border: none;
            outline: none;
            font-size: 0.875rem;
        }

        #searchBtn {
            background-color: var(--color-primary);
            color: white;
            padding: 0.5rem 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        #searchBtn:hover {
            background-color: rgba(22, 93, 255, 0.9);
        }

        /* 主内容样式 */
        main {
            flex: 1;
            padding: 2rem 0;
        }

        /* 站点说明 */
        .site-intro {
            background-color: white;
            border-radius: 0.75rem;
            padding: 1.5rem;
            box-shadow: var(--shadow-sm);
            margin-bottom: 2rem;
        }

        .intro-title {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
        }

        .intro-text {
            color: var(--color-gray-500);
            line-height: 1.6;
        }

        /* 分类导航 */
        .category-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
            overflow-x: auto;
            padding-bottom: 0.5rem;
        }

        .category-btn {
            padding: 0.5rem 1rem;
            border-radius: 0.5rem;
            border: none;
            font-size: 0.875rem;
            cursor: pointer;
            transition: var(--transition);
            background-color: white;
            box-shadow: var(--shadow-sm);
        }

        .category-btn:hover {
            background-color: var(--color-light);
        }

        .category-btn.active,
        .category-btn.active:hover {
            background-color: var(--color-primary);
            color: white;
        }

        /* 镜像卡片网格 */
        .mirror-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 768px) {
            .mirror-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .mirror-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        /* 镜像卡片样式 */
        .mirror-card {
            background-color: white;
            border-radius: 0.75rem;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .mirror-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-0.25rem);
        }

        .card-header {
            padding: 1rem;
            border-bottom: 1px solid var(--color-gray-100);
        }

        .card-title {
            font-weight: 600;
        }

        .card-body {
            padding: 0.5rem;
        }

        .link-item {
            display: flex;
            align-items: center;
            padding: 0.75rem;
            border-radius: 0.5rem;
            transition: var(--transition);
            text-decoration: none;
            color: var(--color-dark);
        }

        .link-item:hover {
            background-color: var(--color-light);
        }

        /* 页脚样式 */
        footer {
            background-color: var(--color-dark);
            color: white;
            padding: 2rem 0;
            margin-top: 2rem;
        }

        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        @media (min-width: 768px) {
            .footer-content {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }
        }

        .copyright {
            color: var(--color-gray-300);
            font-size: 0.875rem;
            margin-bottom: 1rem;
        }

        @media (min-width: 768px) {
            .copyright {
                margin-bottom: 0;
            }
        }

        .footer-links {
            display: flex;
            gap: 1rem;
        }

        .footer-link {
            color: var(--color-gray-300);
            text-decoration: none;
            font-size: 0.875rem;
            transition: var(--transition);
        }

        .footer-link:hover {
            color: white;
        }

        /* 隐藏元素 */
        .hidden {
            display: none;
        }