/* 糖心vlog - 甜蜜生活视频分享平台样式 */
/* 全新设计，与之前模板完全不同 */

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 紫色/粉色主题 */
    --primary-color: #9c27b0;
    --primary-light: #e1bee7;
    --primary-dark: #7b1fa2;
    --secondary-color: #ff4081;
    --secondary-light: #ff80ab;
    --secondary-dark: #f50057;
    
    /* 中性色 */
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --text-light: #a0aec0;
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-tertiary: #edf2f7;
    --border-color: #e2e8f0;
    
    /* 功能色 */
    --success-color: #48bb78;
    --warning-color: #ed8936;
    --error-color: #f56565;
    --info-color: #4299e1;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* 间距 */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    min-height: 100vh;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* 顶部导航栏 */
.main-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) 0;
    gap: var(--space-lg);
}

/* 品牌标识 */
.brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo .icon-heart {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* 主导航 */
.main-nav .nav-list {
    display: flex;
    list-style: none;
    gap: var(--space-md);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-full);
    transition: all 0.3s ease;
    font-weight: 500;
}

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

.nav-link.active {
    color: white;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    box-shadow: var(--shadow-md);
}

.nav-link .icon {
    font-size: 1.125rem;
}

/* 搜索和用户操作 */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.search-box {
    display: flex;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.search-box:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(156, 39, 176, 0.1);
}

.search-input {
    flex: 1;
    background: transparent;
    border: none;
    padding: var(--space-sm) var(--space-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    min-width: 240px;
    outline: none;
}

.search-input::placeholder {
    color: var(--text-light);
}

.search-btn {
    background: transparent;
    border: none;
    padding: var(--space-sm) var(--space-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.3s ease;
}

.search-btn:hover {
    color: var(--primary-color);
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.btn-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
}

.upload-btn {
    padding: var(--space-sm) var(--space-lg);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-sm);
}

/* 特色横幅 */
.feature-banner {
    padding: var(--space-2xl) 0;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg-primary) 100%);
    overflow: hidden;
}

.banner-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.banner-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.banner-text p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.banner-actions {
    display: flex;
    gap: var(--space-md);
}

.banner-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.banner-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.banner-image:hover img {
    transform: scale(1.05);
}

/* 主要内容区域 */
.main-content {
    padding: var(--space-2xl) 0;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-xl);
    color: var(--text-primary);
    position: relative;
    padding-bottom: var(--space-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
}

/* 分类导航 */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-xl);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    text-align: center;
}

.category-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
}

.category-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.category-icon .icon {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.category-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.category-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* 推荐vlog */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.view-all {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: gap 0.3s ease;
}

.view-all:hover {
    gap: var(--space-sm);
}

.vlog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.vlog-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

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

.vlog-thumbnail {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.vlog-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.vlog-card:hover .vlog-thumbnail img {
    transform: scale(1.1);
}

.thumbnail-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.vlog-card:hover .thumbnail-overlay {
    opacity: 1;
}

.thumbnail-overlay .icon-play {
    color: white;
    font-size: 3rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.duration {
    position: absolute;
    bottom: var(--space-sm);
    right: var(--space-sm);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

.vlog-content {
    padding: var(--space-lg);
}

.vlog-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.vlog-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.vlog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.author-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.author-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--primary-light);
}

.author-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.stats {
    display: flex;
    gap: var(--space-md);
}

.stat {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.stat .icon {
    font-size: 0.875rem;
}

/* 热门创作者 */
.creator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.creator-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

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

.creator-avatar {
    position: relative;
    flex-shrink: 0;
}

.creator-avatar img {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid var(--primary-light);
}

.verified-badge {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
    border: 2px solid white;
}

.creator-info {
    flex: 1;
}

.creator-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.creator-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.creator-stats {
    display: flex;
    gap: var(--space-md);
}

.creator-stats .stat {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.follow-btn {
    flex-shrink: 0;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
}

/* 特色话题 */
.topic-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.topic-tag {
    display: inline-block;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.topic-tag:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 页脚 */
.main-footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: var(--space-2xl) 0 var(--space-lg);
    margin-top: var(--space-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.footer-brand .icon-heart {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.footer-brand h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

.footer-social {
    display: flex;
    gap: var(--space-md);
}

.social-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

.social-link:hover {
    color: var(--primary-color);
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.copyright {
    text-align: center;
}

.copyright p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--space-xs);
}

.copyright a {
    color: var(--primary-color);
    text-decoration: none;
}

.copyright a:hover {
    text-decoration: underline;
}

.footer-badges {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.badge {
    padding: 4px 12px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.75rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .banner-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .banner-image {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .banner-actions {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }
    
    .main-nav {
        order: 3;
        width: 100%;
        margin-top: var(--space-md);
    }
    
    .nav-list {
        justify-content: center;
    }
    
    .header-actions {
        margin-left: auto;
    }
    
    .search-input {
        min-width: 180px;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .main-nav .nav-list {
        display: none;
    }
    
    .main-nav.active .nav-list {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        padding: var(--space-md);
        box-shadow: var(--shadow-lg);
        border-radius: var(--radius-lg);
        z-index: 1000;
    }
    
    .banner-text h2 {
        font-size: 2rem;
    }
    
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .vlog-grid {
        grid-template-columns: 1fr;
    }
    
    .creator-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        justify-content: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .logo h1 {
        font-size: 1.25rem;
    }
    
    .header-actions {
        flex-direction: column;
        gap: var(--space-sm);
        width: 100%;
    }
    
    .search-box {
        width: 100%;
    }
    
    .search-input {
        min-width: auto;
    }
    
    .upload-btn {
        width: 100%;
        justify-content: center;
    }
    
    .banner-text h2 {
        font-size: 1.75rem;
    }
    
    .banner-actions {
        flex-direction: column;
    }
    
    .category-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-md);
    }
    
    .view-all {
        align-self: flex-end;
    }
}

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

.vlog-card, .creator-card, .category-card {
    animation: fadeIn 0.6s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-dark));
}

/* 打印样式 */
@media print {
    .main-header,
    .feature-banner,
    .footer-social,
    .footer-badges,
    .mobile-menu-btn {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .container {
        max-width: 100%;
    }
    
    .vlog-card,
    .creator-card,
    .category-card {
        break-inside: avoid;
        border: 1px solid #ddd;
        box-shadow: none;
    }
}