/* 妈妈儿子家庭游戏节目视频 - 主样式表 */
/* 610969.com - 影视传媒视频社区 */

:root {
    --primary-color: #8B5CF6;
    --secondary-color: #EC4899;
    --accent-color: #F472B6;
    --dark-bg: #1F2937;
    --light-bg: #F9FAFB;
    --text-dark: #111827;
    --text-light: #6B7280;
    --white: #FFFFFF;
    --gradient-primary: linear-gradient(135deg, #8B5CF6 0%, #EC4899 100%);
    --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);
    --border-radius: 12px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--light-bg);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

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

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

/* 头部导航样式 */
.header {
    background: var(--white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

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

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

.logo-text {
    font-size: 18px;
    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: 30px;
}

.nav-menu a {
    font-weight: 500;
    color: var(--text-dark);
    padding: 8px 0;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

/* 搜索框样式 */
.search-bar {
    background: var(--light-bg);
    padding: 15px 0;
    border-bottom: 1px solid #E5E7EB;
}

.search-form {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
}

.search-input {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid #E5E7EB;
    border-right: none;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    font-size: 16px;
    outline: none;
    transition: border-color 0.3s ease;
}

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

.search-btn {
    padding: 12px 25px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.search-btn:hover {
    opacity: 0.9;
}

/* Banner轮播样式 */
.banner {
    position: relative;
    overflow: hidden;
    margin-bottom: 40px;
}

.banner-slide {
    position: relative;
    height: 500px;
}

.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 60px 40px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: var(--white);
}

.banner-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.banner-desc {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
}

/* 区块标题样式 */
.section {
    padding: 50px 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    position: relative;
    padding-left: 15px;
}

.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 28px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.more-link {
    color: var(--primary-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 5px;
}

.more-link:hover {
    color: var(--secondary-color);
}

/* 视频卡片样式 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.video-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.video-thumb {
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
}

.video-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(139, 92, 246, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-card:hover .play-btn {
    opacity: 1;
}

.play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 18px solid var(--white);
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 5px;
}

.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.7);
    color: var(--white);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.video-info {
    padding: 15px;
}

.video-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-light);
}

.video-views,
.video-likes {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 专家展示样式 */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.expert-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
}

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

.expert-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 20px;
    border: 4px solid var(--primary-color);
}

.expert-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.expert-title {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 15px;
}

.expert-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 20px;
}

.expert-btn {
    display: inline-block;
    padding: 10px 25px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 25px;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.expert-btn:hover {
    opacity: 0.9;
}

/* 用户评价样式 */
.review-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.review-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow-md);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.review-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.review-user {
    font-weight: 600;
    color: var(--text-dark);
}

.review-date {
    font-size: 13px;
    color: var(--text-light);
}

.review-stars {
    color: #FBBF24;
    margin-bottom: 10px;
}

.review-content {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* 合作品牌样式 */
.partner-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    padding: 30px 0;
}

.partner-logo {
    height: 60px;
    opacity: 0.6;
    filter: grayscale(100%);
    transition: all 0.3s ease;
}

.partner-logo:hover {
    opacity: 1;
    filter: grayscale(0%);
}

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

.faq-item {
    background: var(--white);
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    padding: 20px 25px;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    padding: 0 25px 20px;
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.7;
}

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

.contact-info {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow-md);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 20px;
}

.contact-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.contact-text h4 {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.contact-text p {
    color: var(--text-light);
    font-size: 14px;
}

.qrcode-grid {
    display: flex;
    gap: 30px;
    justify-content: center;
}

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

.qrcode-item img {
    width: 150px;
    height: 150px;
    border-radius: var(--border-radius);
    margin-bottom: 10px;
}

.qrcode-item p {
    font-size: 14px;
    color: var(--text-light);
}

/* 页脚样式 */
.footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 50px 0 20px;
}

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

.footer-brand .logo-text {
    font-size: 22px;
    margin-bottom: 15px;
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    line-height: 1.7;
}

.footer-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

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

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

.footer-links a {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: background 0.3s ease;
}

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

/* 面包屑导航 */
.breadcrumb {
    padding: 15px 0;
    font-size: 14px;
    color: var(--text-light);
}

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

.breadcrumb span {
    margin: 0 8px;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination a,
.pagination span {
    padding: 10px 15px;
    background: var(--white);
    border-radius: 8px;
    color: var(--text-dark);
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.pagination a:hover,
.pagination .active {
    background: var(--gradient-primary);
    color: var(--white);
}

/* 内页头部 */
.page-header {
    background: var(--gradient-primary);
    padding: 60px 0;
    color: var(--white);
    text-align: center;
}

.page-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-desc {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* 工具卡片样式 */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.tool-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
}

.tool-card:hover {
    transform: translateY(-5px);
}

.tool-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 30px;
    color: var(--white);
}

.tool-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.tool-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 20px;
}

.tool-btn {
    display: inline-block;
    padding: 10px 25px;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tool-btn:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* 社区帖子样式 */
.post-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.post-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow-md);
    display: flex;
    gap: 20px;
}

.post-thumb {
    width: 200px;
    height: 130px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}

.post-content {
    flex: 1;
}

.post-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.post-excerpt {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-meta {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: var(--text-light);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .video-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
    
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .expert-grid,
    .review-grid,
    .tool-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
    }
    
    .banner-slide {
        height: 300px;
    }
    
    .banner-title {
        font-size: 24px;
    }
    
    .page-title {
        font-size: 28px;
    }
    
    .post-card {
        flex-direction: column;
    }
    
    .post-thumb {
        width: 100%;
        height: 180px;
    }
}

@media (max-width: 480px) {
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .section {
        padding: 30px 0;
    }
    
    .section-title {
        font-size: 22px;
    }
}

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

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* 懒加载占位 */
.lazy-load {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}