/* 糖心vlog - 原创视频分享平台样式表 */
/* 访问 yuanlo.cn 获取更多精彩视频内容 */

/* 基础重置 */
* {
    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;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
}

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 */
.header {
    background: linear-gradient(135deg, #FF6B9D 0%, #FF8A65 100%);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(255, 107, 157, 0.3);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo img {
    width: 45px;
    height: 45px;
    border-radius: 10px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: #fff;
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: rgba(255,255,255,0.2);
}

/* 搜索栏 */
.search-bar {
    background: #fff;
    padding: 15px 0;
    border-bottom: 1px solid #eee;
}

.search-container {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    gap: 10px;
}

.search-input {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid #FF6B9D;
    border-radius: 25px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.search-input:focus {
    border-color: #FF8A65;
}

.search-btn {
    padding: 12px 25px;
    background: linear-gradient(135deg, #FF6B9D 0%, #FF8A65 100%);
    color: #fff;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.search-btn:hover {
    transform: scale(1.05);
}

/* Hero区域 */
.hero {
    position: relative;
    height: 500px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
    padding: 20px;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.hero-btn {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, #FF6B9D 0%, #FF8A65 100%);
    color: #fff;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 107, 157, 0.4);
}

/* 通用区块样式 */
.section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 10px;
}

.section-title p {
    color: #666;
    font-size: 1.1rem;
}

.bg-light {
    background: #fff;
}

.bg-gradient {
    background: linear-gradient(135deg, #fff5f7 0%, #fff0e6 100%);
}

/* 视频卡片网格 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.video-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.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(255, 107, 157, 0.9);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.play-btn::after {
    content: '';
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent #fff;
    margin-left: 4px;
}

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

.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.7);
    color: #fff;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.video-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background: linear-gradient(135deg, #FF6B9D 0%, #FF8A65 100%);
    color: #fff;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
}

.video-info {
    padding: 15px;
}

.video-info h3 {
    font-size: 1rem;
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    color: #999;
    font-size: 0.85rem;
}

.video-stats {
    display: flex;
    gap: 15px;
}

/* 特色功能网格 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px;
}

.feature-card {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #333;
}

.feature-card p {
    color: #666;
    font-size: 0.95rem;
}

/* 专家展示 */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.expert-card {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.expert-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 15px;
    border: 4px solid #FF6B9D;
}

.expert-card h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.expert-title {
    color: #FF6B9D;
    font-size: 0.95rem;
    margin-bottom: 10px;
}

.expert-desc {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.expert-certs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 15px;
}

.cert-tag {
    background: #fff0e6;
    color: #FF8A65;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
}

.expert-btns {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.btn-primary {
    padding: 10px 20px;
    background: linear-gradient(135deg, #FF6B9D 0%, #FF8A65 100%);
    color: #fff;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: transform 0.3s ease;
}

.btn-primary:hover {
    transform: scale(1.05);
}

.btn-secondary {
    padding: 10px 20px;
    background: #f5f5f5;
    color: #666;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: background 0.3s ease;
}

.btn-secondary:hover {
    background: #eee;
}

/* 合作伙伴 */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
}

.partner-item {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.partner-logo {
    font-size: 1.2rem;
    font-weight: 600;
    color: #666;
    margin-bottom: 5px;
}

.partner-item p {
    font-size: 0.8rem;
    color: #999;
}

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

.faq-item {
    background: #fff;
    margin-bottom: 15px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.faq-question {
    padding: 20px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: #FF6B9D;
}

.faq-answer {
    padding: 0 20px 20px;
    color: #666;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-item.active .faq-question::after {
    content: '-';
}

/* 用户评价 */
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.review-card {
    background: #fff;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.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 h4 {
    font-size: 1rem;
    margin-bottom: 3px;
}

.review-rating {
    color: #FFD700;
}

.review-content {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 10px;
}

.review-source {
    color: #999;
    font-size: 0.85rem;
}

/* 联系我们 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.contact-card {
    background: #fff;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.contact-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #333;
}

.contact-card img {
    max-width: 150px;
    margin: 10px 0;
}

.contact-card p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.8;
}

/* 页脚 */
.footer {
    background: #2d3436;
    color: #fff;
    padding: 50px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-logo img {
    width: 50px;
    margin-bottom: 15px;
}

.footer-desc {
    color: #aaa;
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: #fff;
}

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

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    color: #aaa;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-col a:hover {
    color: #FF6B9D;
}

.footer-qr {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.footer-qr img {
    width: 80px;
    border-radius: 5px;
}

.social-share {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.social-share a {
    width: 35px;
    height: 35px;
    background: #444;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.9rem;
    transition: background 0.3s ease;
}

.social-share a:hover {
    background: #FF6B9D;
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 20px;
    text-align: center;
    color: #aaa;
    font-size: 0.85rem;
}

.footer-bottom a {
    color: #FF6B9D;
}

/* 内页头部 */
.page-header {
    background: linear-gradient(135deg, #FF6B9D 0%, #FF8A65 100%);
    padding: 60px 0;
    text-align: center;
    color: #fff;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 面包屑 */
.breadcrumb {
    padding: 15px 0;
    background: #fff;
    border-bottom: 1px solid #eee;
}

.breadcrumb-list {
    display: flex;
    gap: 10px;
    list-style: none;
    font-size: 0.9rem;
}

.breadcrumb-list a {
    color: #666;
}

.breadcrumb-list a:hover {
    color: #FF6B9D;
}

.breadcrumb-list span {
    color: #999;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .hero {
        height: 400px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .section-title h2 {
        font-size: 1.5rem;
    }
    
    .video-grid,
    .feature-grid,
    .expert-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .nav-menu a {
        padding: 6px 10px;
        font-size: 0.9rem;
    }
    
    .hero {
        height: 350px;
    }
    
    .hero-content h1 {
        font-size: 1.5rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}