/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 背景模糊效果 */
.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1515879218367-8466d17c8a1d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80') center/cover no-repeat;
    filter: blur(80px);
    z-index: -1;
}

/* 主容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部样式 */
header {
    text-align: center;
    padding: 40px 0;
    color: white;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

header h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    font-weight: 700;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 管理员登录链接 */
.admin-login-link {
    display: inline-block;
    margin-top: 15px;
    padding: 8px 15px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.admin-login-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* 毛玻璃效果类 */
.glass {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* 搜索框样式 */
.search-box {
    display: flex;
    padding: 15px 20px;
    margin-bottom: 30px;
    align-items: center;
}

#searchInput {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 50px 0 0 50px;
    background: rgba(255, 255, 255, 0.85);
    outline: none;
    font-size: 1rem;
}

#searchBtn {
    padding: 12px 25px;
    border: none;
    border-radius: 0 50px 50px 0;
    background: rgba(255, 255, 255, 0.9);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

#searchBtn:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-2px);
}

/* 控制区域（筛选器和布局切换） */
.controls {
    display: flex;
    justify-content: space-between;
    padding: 15px;
    margin-bottom: 30px;
    align-items: center;
    flex-wrap: wrap;
}

/* 筛选器样式 */
.filters {
    display: flex;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    margin: 5px;
    border: none;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-3px);
}

/* 布局切换器 */
.layout-switcher {
    display: flex;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    padding: 5px;
}

.layout-btn {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    padding: 8px 15px;
    border-radius: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.layout-btn:hover {
    color: white;
}

.layout-btn.active {
    background: rgba(255, 255, 255, 0.35);
    color: white;
}

/* 软件网格布局（默认卡片布局） */
.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

/* 软件卡片样式 */
.software-card {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    padding: 25px;
    text-align: center;
    transition: all 0.4s ease;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    color: white;
}

.software-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.25);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.software-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.software-name {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.software-description {
    font-size: 0.9rem;
    margin-bottom: 20px;
    opacity: 0.9;
    min-height: 60px;
}

.software-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    font-size: 0.85rem;
    opacity: 0.8;
}

.download-btn {
    display: inline-block;
    padding: 12px 30px;
    background: rgba(255, 255, 255, 0.25);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.4);
    transform: scale(1.05);
}

/* 列表布局样式 */
.software-grid.list-layout {
    grid-template-columns: 1fr;
    gap: 20px;
}

.software-card.list-layout {
    display: flex;
    text-align: left;
    align-items: center;
    padding: 20px;
}

.software-card.list-layout .software-icon {
    width: 60px;
    height: 60px;
    margin: 0 20px 0 0;
    flex-shrink: 0;
}

.software-card.list-layout .software-info {
    flex-grow: 1;
    margin-right: 20px;
}

.software-card.list-layout .software-name {
    margin-bottom: 5px;
}

.software-card.list-layout .software-description {
    margin-bottom: 10px;
    min-height: auto;
}

.software-card.list-layout .software-meta {
    margin-bottom: 0;
    justify-content: flex-start;
    gap: 20px;
}

.software-card.list-layout .download-btn {
    flex-shrink: 0;
    margin-left: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    #searchInput {
        width: 100%;
        border-radius: 50px;
        margin-bottom: 10px;
    }
    
    #searchBtn {
        width: 100%;
        border-radius: 50px;
    }
    
    .controls {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    
    .filters {
        justify-content: center;
    }
    
    .filter-btn {
        margin: 5px;
        padding: 8px 15px;
        font-size: 0.9rem;
    }
    
    .software-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
    }
    
    /* 移动端列表布局 */
    .software-card.list-layout {
        flex-direction: column;
        text-align: center;
    }
    
    .software-card.list-layout .software-icon {
        margin: 0 auto 15px;
    }
    
    .software-card.list-layout .software-info {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .software-card.list-layout .download-btn {
        margin-left: 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }
    
    header {
        padding: 20px 0;
    }
    
    header h1 {
        font-size: 1.8rem;
    }
    
    .software-grid {
        grid-template-columns: 1fr;
    }
    
    .software-card.list-layout .software-meta {
        flex-direction: column;
        gap: 5px;
        align-items: center;
    }
}