/* 基础样式 */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --light-bg: #f5f7fa;
    --card-bg: white;
    --text-color: #333;
    --text-light: #666;
    --border-color: #e1e5e9;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
    transition: all 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5px;
}

/* 头部样式 */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    animation: spin 20s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.btn-admin {
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

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

/* 搜索框 */
.search-box {
    margin: 40px auto;
    display: flex;
    max-width: 600px;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border: 2px solid transparent;
    transition: border-color 0.3s;
}

.search-box:focus-within {
    border-color: var(--primary-color);
}

.search-box input {
    flex: 1;
    padding: 15px 25px;
    border: none;
    font-size: 16px;
    outline: none;
    background: transparent;
}

.search-box button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 15px 30px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-box button:hover {
    background: #5a67d8;
}

/* 网站容器 */
.site-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    padding: 20px 0 40px;
}

/* 网站项 */
.site-item {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.site-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s;
}

.site-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
    border-color: var(--primary-color);
}

.site-item:hover::before {
    opacity: 1;
}

/* Logo容器 */
.site-logo-container {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    transition: all 0.3s;
    overflow: hidden;
    position: relative;
}

/* Logo图片 */
.site-logo {
    max-width: 70%;
    max-height: 70%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.site-item:hover .site-logo {
    transform: scale(1.1);
}

/* 备用图标样式 */
.icon-fallback {
    font-size: 36px;
    color: var(--primary-color);
}

/* PC端：统一背景色 */
@media (min-width: 769px) {
    .site-logo-container {
        background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%) !important;
    }
}

/* 移动端：显示自定义背景色 */
@media (max-width: 768px) {
    .site-item[data-id] .site-logo-container {
        background: linear-gradient(135deg, 
            var(--icon-bg-color, #f5f7fa) 0%, 
            color-mix(in srgb, var(--icon-bg-color, #c3cfe2) 80%, black 20%) 100%);
    }
}

.site-info {
    text-align: center;
    flex: 1;
}

.site-name {
    margin-bottom: 12px;
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.4;
}

.site-name a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s;
    display: inline-block;
    position: relative;
}

.site-name a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s;
}

.site-name a:hover {
    color: var(--primary-color);
}

.site-name a:hover::after {
    width: 100%;
}

.site-description {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
    min-height: 44px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.logo-status {
    margin-top: 10px;
    padding: 6px 12px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 20px;
    display: inline-block;
}

.logo-status small {
    color: var(--primary-color);
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.logo-status i {
    font-size: 10px;
}

/* 图标样式（备用） */
.icon-default {
    color: var(--primary-color);
    font-size: 36px;
}

.icon-1 { color: #4285f4; }
.icon-2 { color: #ea4335; }
.icon-3 { color: #34a853; }
.icon-4 { color: #fbbc05; }
.icon-5 { color: #673ab7; }
.icon-6 { color: #e91e63; }
.icon-7 { color: #00bcd4; }
.icon-8 { color: #ff5722; }
.icon-9 { color: #795548; }
.icon-10 { color: #607d8b; }
.icon-11 { color: #8e44ad; }
.icon-12 { color: #16a085; }
.icon-13 { color: #f39c12; }
.icon-14 { color: #d35400; }
.icon-15 { color: #c0392b; }

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    grid-column: 1 / -1;
}

.empty-state i {
    color: var(--primary-color);
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state h3 {
    color: var(--text-color);
    margin-bottom: 10px;
}

.empty-state p {
    color: var(--text-light);
    margin-bottom: 30px;
}

.btn-add-first {
    background: var(--primary-color);
    color: white;
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background 0.3s;
}

.btn-add-first:hover {
    background: #5a67d8;
}

/* 统计栏 */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-light);
    font-size: 14px;
}

.stat-item i {
    color: var(--primary-color);
    font-size: 16px;
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 30px 0;
    color: var(--text-light);
    border-top: 1px solid var(--border-color);
    margin-top: 60px;
}

.footer-hint {
    margin-top: 10px;
    font-size: 13px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.footer-hint i {
    color: var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .site-container {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 20px;
    }
    
    .stats-bar {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }
    
    .header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .site-logo-container {
        width: 70px;
        height: 70px;
    }
}

@media (max-width: 480px) {
    .site-container {
        grid-template-columns: 1fr;
    }
    
    .site-item {
        padding: 20px;
    }
    
    .search-box {
        margin: 20px auto;
    }
    
    .search-box input {
        padding: 12px 20px;
    }
    
    .search-box button {
        padding: 12px 20px;
    }
    
    .site-logo-container {
        width: 60px;
        height: 60px;
    }
}

/* 暗色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --light-bg: #1a1a1a;
        --card-bg: #2d2d2d;
        --text-color: #e0e0e0;
        --text-light: #a0a0a0;
        --border-color: #404040;
    }
    
    .site-logo-container {
        background: linear-gradient(135deg, #2d2d2d 0%, #404040 100%) !important;
    }
    
    @media (max-width: 768px) {
        .site-item[data-id] .site-logo-container {
            background: linear-gradient(135deg, 
                var(--icon-bg-color, #2d2d2d) 0%, 
                color-mix(in srgb, var(--icon-bg-color, #404040) 80%, white 20%) 100%);
        }
    }
}