/* 糖心vlog - 影视传媒视频社区 主样式表 */
/* muxane.cn */

/* ========== 基础重置与变量 ========== */
:root {
    --primary-color: #FF6B9D;
    --primary-dark: #E85A8A;
    --secondary-color: #FF8A65;
    --accent-color: #7C4DFF;
    --dark-bg: #1a1a2e;
    --darker-bg: #16162a;
    --card-bg: #252542;
    --text-primary: #ffffff;
    --text-secondary: #b8b8d1;
    --text-muted: #8888a8;
    --border-color: #3a3a5c;
    --success-color: #4CAF50;
    --warning-color: #FF9800;
    --gradient-primary: linear-gradient(135deg, #FF6B9D 0%, #FF8A65 100%);
    --gradient-dark: linear-gradient(180deg, #1a1a2e 0%, #16162a 100%);
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 30px rgba(255, 107, 157, 0.3);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --border-radius: 12px;
    --border-radius-lg: 20px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--gradient-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--secondary-color);
}

img {
    max-width: 100%;
    height: auto;
}

/* ========== 头部导航 ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 0 20px;
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 45px;
    width: auto;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-menu a {
    display: block;
    padding: 10px 18px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--text-primary);
    background: rgba(255, 107, 157, 0.15);
}

/* 搜索框 */
.search-box {
    position: relative;
    width: 240px;
}

.search-box input {
    width: 100%;
    padding: 10px 40px 10px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 25px;
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: all var(--transition-fast);
}

.search-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.2);
}

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

.search-box button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast);
}

.search-box button:hover {
    transform: translateY(-50%) scale(1.05);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
}

/* ========== 主内容区 ========== */
.main-content {
    padding-top: 70px;
}

/* ========== Banner区域 ========== */
.hero-banner {
    position: relative;
    height: 500px;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(26, 26, 46, 0.9) 0%, rgba(26, 26, 46, 0.5) 50%, rgba(26, 26, 46, 0.3) 100%);
    z-index: 1;
}

.hero-banner img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero-content h1 span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 157, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 157, 0.5);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

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

/* ========== 通用区块样式 ========== */
.section {
    padding: 80px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header h2 span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ========== 视频卡片网格 ========== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.video-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.video-thumb {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.video-card:hover .video-thumb img {
    transform: scale(1.05);
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all var(--transition-normal);
}

.play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 18px solid white;
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 4px;
}

.video-card:hover .play-btn {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.video-info {
    padding: 16px;
}

.video-info h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.video-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.video-tags {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.tag {
    padding: 4px 10px;
    background: rgba(255, 107, 157, 0.15);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.75rem;
}

/* ========== 分类模块 ========== */
.category-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.category-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
}

.category-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.category-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.category-card p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ========== 专家团队 ========== */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.expert-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    text-align: center;
    transition: all var(--transition-normal);
}

.expert-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.expert-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 20px;
    overflow: hidden;
    border: 3px solid var(--primary-color);
}

.expert-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.expert-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.expert-title {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.expert-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.expert-stats {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 20px;
}

.expert-stats div {
    text-align: center;
}

.expert-stats strong {
    display: block;
    font-size: 1.3rem;
    color: var(--primary-color);
}

.expert-stats span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.expert-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.expert-actions .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* ========== 用户评价 ========== */
.review-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.review-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 24px;
    transition: all var(--transition-normal);
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-soft);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.review-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 600;
    color: white;
}

.review-user h4 {
    font-size: 1rem;
    font-weight: 600;
}

.review-user span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.review-stars {
    color: #FFD700;
    margin-bottom: 12px;
}

.review-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========== 合作品牌 ========== */
.partner-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
    padding: 40px 0;
}

.partner-logo {
    opacity: 0.6;
    transition: opacity var(--transition-fast);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-secondary);
}

.partner-logo:hover {
    opacity: 1;
}

/* ========== FAQ模块 ========== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-question {
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: rgba(255, 107, 157, 0.1);
}

.faq-question h3 {
    font-size: 1rem;
    font-weight: 600;
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item.active .faq-answer {
    padding: 0 24px 20px;
    max-height: 500px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========== 联系我们 ========== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.contact-info {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 40px;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}

.contact-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.contact-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.qrcode-section {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    text-align: center;
}

.qrcode-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 24px;
}

.qrcode-item {
    text-align: center;
}

.qrcode-item img {
    width: 150px;
    height: 150px;
    border-radius: var(--border-radius);
    margin-bottom: 12px;
}

.qrcode-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========== 页脚 ========== */
.footer {
    background: var(--darker-bg);
    border-top: 1px solid var(--border-color);
    padding: 60px 20px 30px;
}

.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--card-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

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

.footer-links h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.update-time {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ========== 面包屑导航 ========== */
.breadcrumb {
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.breadcrumb ul {
    display: flex;
    list-style: none;
    gap: 8px;
    font-size: 0.9rem;
}

.breadcrumb li::after {
    content: '/';
    margin-left: 8px;
    color: var(--text-muted);
}

.breadcrumb li:last-child::after {
    display: none;
}

.breadcrumb a {
    color: var(--text-secondary);
}

.breadcrumb li:last-child a {
    color: var(--primary-color);
}

/* ========== 内页样式 ========== */
.page-header {
    background: var(--card-bg);
    padding: 60px 20px;
    text-align: center;
    margin-bottom: 40px;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.page-header h1 span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ========== 工具卡片 ========== */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.tool-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.tool-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.tool-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.tool-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.tool-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

/* ========== 社区功能 ========== */
.community-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    display: flex;
    gap: 24px;
    transition: all var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-soft);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    flex-shrink: 0;
}

.feature-content h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.feature-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========== 响应式设计 ========== */
@media (max-width: 1200px) {
    .video-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-top {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-banner {
        height: 400px;
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .expert-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .review-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .tool-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-inner {
        height: 60px;
    }
    
    .search-box {
        display: none;
    }
    
    .hero-banner {
        height: 350px;
    }
    
    .hero-content {
        padding: 0 20px;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .section {
        padding: 50px 15px;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .expert-grid {
        grid-template-columns: 1fr;
    }
    
    .review-grid {
        grid-template-columns: 1fr;
    }
    
    .community-features {
        grid-template-columns: 1fr;
    }
    
    .tool-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .qrcode-grid {
        flex-direction: column;
        align-items: center;
    }
}

/* ========== 动画效果 ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

/* ========== 懒加载占位 ========== */
.lazy-load {
    background: var(--card-bg);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lazy-load.loaded {
    opacity: 1;
}

/* ========== 直播标签 ========== */
.live-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: #FF0000;
    color: white;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

.live-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: white;
    border-radius: 50%;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ========== 统计数据 ========== */
.stats-bar {
    background: var(--card-bg);
    padding: 40px 20px;
    margin-bottom: 40px;
}

.stats-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-item p {
    color: var(--text-secondary);
    font-size: 1rem;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


/* ========== 面包屑导航 ========== */
.breadcrumb {
    background: var(--darker-bg);
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-inner {
    max-width: 1400px;
    margin: 0 auto;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--text-secondary);
}

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

.breadcrumb span {
    margin: 0 8px;
}

/* ========== 服务网格 ========== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.service-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ========== 娱乐专区 ========== */
.entertainment-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.entertainment-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.entertainment-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
}

.entertainment-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.entertainment-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.entertainment-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ========== 社区功能 ========== */
.community-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.community-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.community-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
}

.community-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.community-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.community-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ========== AI功能网格 ========== */
.ai-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.ai-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.ai-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
}

.ai-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.ai-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.ai-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ========== 专家团队网格 ========== */
.experts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.expert-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    text-align: center;
    transition: all var(--transition-normal);
}

.expert-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.expert-card img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 20px;
    border: 3px solid var(--primary-color);
}

.expert-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.expert-card .expert-title {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.expert-card .expert-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.expert-card .expert-stats {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.expert-card .expert-stats span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.expert-card .expert-stats strong {
    color: var(--primary-color);
}

.expert-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.85rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 20px;
    transition: all var(--transition-fast);
}

.btn-small:hover {
    transform: translateY(-2px);
    color: white;
}

.btn-outline-small {
    padding: 8px 16px;
    font-size: 0.85rem;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    transition: all var(--transition-fast);
}

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

/* ========== 用户评价网格 ========== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: all var(--transition-normal);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-soft);
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: white;
    margin: 0 auto 16px;
}

.testimonial-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.testimonial-role {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.testimonial-stars {
    color: #FFD700;
    margin-bottom: 16px;
}

.testimonial-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========== 直播标签 ========== */
.live-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    background: var(--gradient-primary);
    color: white;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ========== 数据统计条 ========== */
.stats-bar {
    background: var(--card-bg);
    padding: 40px 20px;
}

.stats-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-item p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ========== 响应式设计 ========== */
@media (max-width: 1200px) {
    .video-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .entertainment-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .experts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .search-box {
        display: none;
    }
    
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .community-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ai-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-banner {
        height: 400px;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .video-grid,
    .services-grid,
    .entertainment-grid,
    .community-grid,
    .ai-grid,
    .experts-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .stat-item h3 {
        font-size: 1.8rem;
    }
    
    .footer-top {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-links {
        text-align: center;
    }
}