* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: url('bg.png') no-repeat center center fixed;
            background-size: cover;
            min-height: 100vh;
            padding: 20px;
            color: #fff;
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
            overflow-x: hidden;
        }
        
        body::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            /* background: linear-gradient(135deg, rgba(26, 42, 108, 0.7) 0%, rgba(178, 31, 31, 0.7) 100%); */
            z-index: -1;
        }
        
        .container {
            max-width: 1200px;
            width: 95%;
            margin: 30px auto;
            position: relative;
            z-index: 10;
        }
        
        header {
            text-align: center;
            padding: 30px 0;
            margin-bottom: 30px;
            position: relative;
        }
        
        .logo-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 15px;
            margin-bottom: 20px;
        }
        
        .logo {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            overflow: hidden;
            border: 3px solid rgba(255, 255, 255, 0.2);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
            transition: all 0.3s ease;
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(5px);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .logo img {
            width: 80%;
            height: 80%;
            object-fit: contain;
            filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.5));
        }
        
        h1 {
            font-size: 2.8rem;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
            margin-bottom: 10px;
            background: linear-gradient(to right, #ff9a9e, #fad0c4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 600;
            letter-spacing: 1px;
        }
        
        .subtitle {
            font-size: 1.1rem;
            opacity: 0.85;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.9);
            text-shadow: 0 1px 3px rgba(0,0,0,0.3);
        }
        
        .search-container {
            max-width: 700px;
            margin: 40px auto 50px;
        }
        
        .search-form {
            display: flex;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            border-radius: 50px;
            overflow: hidden;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        
        .search-form:hover {
            box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
            transform: translateY(-3px);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        
        .search-input {
            flex: 1;
            padding: 18px 25px;
            border: none;
            outline: none;
            font-size: 1.1rem;
            background: transparent;
            color: white;
        }
        
        .search-input::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }
        
        .search-button {
            padding: 0 35px;
            background: rgba(66, 133, 244, 0.7);
            color: white;
            border: none;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .search-button:hover {
            background: rgba(51, 103, 214, 0.8);
        }
        
        /* 布局优化部分开始 */
        .categories-container {
            display: flex;
            justify-content: center;
            margin-bottom: 50px;
        }
        
        .categories {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            max-width: 1200px;
            width: 100%;
        }
        
        .category {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(15px);
            border-radius: 20px;
            padding: 25px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        
        .category-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .category h2 {
            font-size: 1.5rem;
            color: #f8f9fa;
            font-weight: 500;
            text-shadow: 0 1px 2px rgba(0,0,0,0.5);
            margin: 0;
        }
        
        .links {
            display: flex;
            flex-direction: column;
            gap: 15px;
            flex-grow: 1;
        }
        
        .link-item {
            display: flex;
            align-items: center;
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 12px;
            transition: all 0.2s ease;
            color: #fff;
            text-decoration: none;
            gap: 12px;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .link-item:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateX(5px);
            border-color: rgba(255, 255, 255, 0.2);
        }
        
        .link-content {
            display: flex;
            align-items: center;
            width: 100%;
        }
        
        .link-icon {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            font-size: 18px;
            text-shadow: 0 1px 2px rgba(0,0,0,0.5);
            flex-shrink: 0;
        }
        
        .link-text {
            flex: 1;
            font-size: 1.15rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            padding: 0 12px;
        }
        
        .link-password {
            font-size: 0.9rem;
            background: rgba(255, 255, 255, 0.1);
            padding: 5px 12px;
            border-radius: 20px;
            font-weight: 600;
            color: #ffd700;
            text-shadow: 0 1px 2px rgba(0,0,0,0.7);
            flex-shrink: 0;
        }
        
        footer {
            text-align: center;
            padding: 20px;
            font-size: 0.9rem;
            opacity: 0.7;
            margin-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(255, 255, 255, 0.03);
            backdrop-filter: blur(10px);
            border-radius: 15px;
            text-shadow: 0 1px 2px rgba(0,0,0,0.5);
            max-width: 800px;
            margin: 40px auto 0;
        }
        
        /* 响应式布局优化 */
        @media (max-width: 1024px) {
            .categories {
                grid-template-columns: repeat(2, 1fr);
            }
            
            h1 {
                font-size: 2.5rem;
            }
        }
        
        @media (max-width: 768px) {
            .categories {
                grid-template-columns: 1fr;
                gap: 25px;
            }
            
            .search-form {
                flex-direction: column;
                border-radius: 20px;
            }
            
            .search-button {
                padding: 15px;
                justify-content: center;
            }
            
            h1 {
                font-size: 2.2rem;
            }
            
            .logo {
                width: 100px;
                height: 100px;
            }
            
            .link-text {
                font-size: 1.1rem;
            }
            
            .link-item {
                padding: 12px 15px;
            }
            
            .categories-container {
                padding: 0 15px;
            }
        }
        
        @media (max-width: 480px) {
            h1 {
                font-size: 2rem;
            }
            
            .subtitle {
                font-size: 1rem;
            }
            
            .search-input {
                padding: 14px 20px;
                font-size: 1rem;
            }
            
            .category {
                padding: 20px;
            }
            
            .category h2 {
                font-size: 1.3rem;
            }
        }
        
        /* 动画效果 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .logo-container {
            animation: fadeIn 0.8s ease-out;
        }
        
        .search-container {
            animation: fadeIn 0.8s ease-out 0.2s forwards;
            opacity: 0;
        }
        
        .categories-container {
            animation: fadeIn 0.8s ease-out 0.4s forwards;
            opacity: 0;
        }
        
        footer {
            animation: fadeIn 0.8s ease-out 0.6s forwards;
            opacity: 0;
        }