/* 全局样式 */
:root {
    --primary-color: #4ade80;
    --primary-hover: #22c55e;
    --secondary-color: #06b6d4;
    --accent-color: #fbbf24;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px 0 rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px 0 rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 12px 32px 0 rgba(0, 0, 0, 0.12);
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(to bottom, #f0fdf4 0%, #ecfeff 50%, #fef3c7 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

/* 导航栏 */
.header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    animation: slideDown 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 20px;
}

.logo h1 {
    font-size: 22px;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav {
    display: flex;
    gap: 8px;
}

.nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 15px;
}

.nav a:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav a.active {
    color: var(--primary-color);
    background: rgba(74, 222, 128, 0.1);
}

.search-box {
    display: flex;
    gap: 8px;
}

.search-box input {
    padding: 10px 18px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    outline: none;
    width: 240px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 14px;
    background: var(--bg-primary);
}

.search-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.1);
}

.search-box button {
    padding: 10px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 14px;
}

.search-box button:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.search-box button:active {
    transform: translateY(0);
}

/* 轮播图 */
.banner {
    margin: 32px 0;
    animation: fadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.banner-slider {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.banner-item {
    background: white;
    border-radius: var(--radius-xl);
    padding: 60px 50px;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.banner-content h2 {
    font-size: 42px;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 800;
    letter-spacing: -1px;
}

.banner-content p {
    font-size: 18px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 主要内容 */
.main-content {
    padding: 32px 0 80px;
    animation: fadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.4s both;
}

/* 分类标签 */
.category-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
    justify-content: center;
}

.tab-btn {
    padding: 10px 24px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--text-secondary);
    font-size: 14px;
    box-shadow: var(--shadow-sm);
}

.tab-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

/* 资源网格 */
.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.resource-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    animation: scaleIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.resource-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.resource-card .card-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    background: linear-gradient(135deg, #4ade80 0%, #06b6d4 100%);
}

.resource-card .card-content {
    padding: 20px;
}

.resource-card .card-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.resource-card .card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.resource-card .category-badge {
    padding: 4px 12px;
    background: rgba(74, 222, 128, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
}

.resource-card .view-count {
    color: var(--text-light);
    font-size: 13px;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 48px;
}

.page-btn {
    padding: 10px 20px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    color: var(--text-secondary);
    font-size: 14px;
}

.page-btn:hover:not(:disabled) {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.page-numbers {
    display: flex;
    gap: 8px;
}

.page-number {
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    color: var(--text-secondary);
    font-size: 14px;
}

.page-number:hover,
.page-number.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* 详情页样式 */
.detail-content {
    padding: 32px 0 80px;
    animation: fadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.detail-wrapper {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 32px;
}

.detail-main {
    background: white;
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    animation: slideInLeft 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.detail-header h1 {
    font-size: 28px;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-weight: 800;
    line-height: 1.3;
}

.detail-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.category-tag {
    padding: 6px 16px;
    background: rgba(74, 222, 128, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 13px;
}

.view-count,
.update-time {
    color: var(--text-secondary);
    font-size: 13px;
    display: flex;
    align-items: center;
}

.detail-cover {
    margin-bottom: 32px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.detail-cover img {
    width: 100%;
    height: auto;
    display: block;
}

.detail-info,
.detail-description,
.download-section {
    margin-bottom: 32px;
}

.detail-info h3,
.detail-description h3,
.download-section h3 {
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-weight: 700;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.info-item {
    display: flex;
    gap: 8px;
    font-size: 14px;
}

.info-item .label {
    font-weight: 600;
    color: var(--text-secondary);
}

.info-item .value {
    color: var(--text-primary);
}

.description-content {
    line-height: 1.8;
    color: var(--text-secondary);
    font-size: 15px;
}

.download-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.download-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.download-link:hover {
    border-color: var(--primary-color);
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
    background: white;
}

.download-link .link-info {
    flex: 1;
}

.download-link .link-name {
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
    font-size: 14px;
}

.download-link .link-url {
    color: var(--text-secondary);
    font-size: 13px;
    word-break: break-all;
}

.download-link .copy-btn {
    padding: 8px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 13px;
}

.download-link .copy-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.download-link .copy-btn:active {
    transform: translateY(0);
}

/* 侧边栏 */
.detail-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
    animation: slideInRight 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.sidebar-section {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.sidebar-section h3 {
    font-size: 16px;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-weight: 700;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
}

.related-list,
.hot-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-item {
    display: flex;
    gap: 12px;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-item:hover {
    background: var(--bg-secondary);
    transform: translateX(4px);
}

.sidebar-item img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, #4ade80 0%, #06b6d4 100%);
}

.sidebar-item-info {
    flex: 1;
}

.sidebar-item-title {
    font-weight: 600;
    font-size: 13px;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--text-primary);
    line-height: 1.4;
}

.sidebar-item-meta {
    font-size: 12px;
    color: var(--text-light);
}

/* 页脚 */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 32px 0;
    text-align: center;
    margin-top: auto;
}

.footer p {
    margin: 4px 0;
    opacity: 0.7;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 968px) {
    .detail-wrapper {
        grid-template-columns: 1fr;
    }
    
    .detail-sidebar {
        order: -1;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 16px;
    }
    
    .nav {
        gap: 8px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .search-box {
        width: 100%;
    }
    
    .search-box input {
        flex: 1;
    }
    
    .banner-item {
        padding: 40px 30px;
    }
    
    .banner-content h2 {
        font-size: 32px;
    }
    
    .resource-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
    }
    
    .detail-main {
        padding: 24px;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .resource-grid {
        grid-template-columns: 1fr;
    }
    
    .category-tabs {
        gap: 8px;
    }
    
    .tab-btn {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .banner-content h2 {
        font-size: 28px;
    }
}