/* 蘑菇视频 - 全站样式表 */
/* 域名: hnspjy.cn */

:root {
    --primary-color: #ff6b9d;
    --secondary-color: #c44569;
    --accent-color: #f8a5c2;
    --dark-color: #2d3436;
    --light-color: #fff5f7;
    --text-color: #333;
    --border-radius: 12px;
    --shadow: 0 4px 20px rgba(255, 107, 157, 0.15);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.8;
    color: var(--text-color);
    background: linear-gradient(135deg, #fff5f7 0%, #ffffff 100%);
}

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

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

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

/* 头部导航 */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    height: 45px;
    border-radius: 8px;
}

.logo-text {
    color: #fff;
    font-size: 24px;
    font-weight: bold;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
}

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

.nav a {
    color: #fff;
    font-size: 16px;
    padding: 8px 16px;
    border-radius: 20px;
    transition: var(--transition);
}

.nav a:hover, .nav a.active {
    background: rgba(255,255,255,0.2);
    color: #fff;
}

/* 搜索框 */
.search-bar {
    background: rgba(255,255,255,0.95);
    padding: 15px 0;
    border-bottom: 1px solid #eee;
}

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

.search-input {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid var(--accent-color);
    border-right: none;
    border-radius: 25px 0 0 25px;
    font-size: 15px;
    outline: none;
}

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

.search-btn {
    padding: 12px 30px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 0 25px 25px 0;
    cursor: pointer;
    font-size: 15px;
    transition: var(--transition);
}

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

/* Banner区域 */
.banner {
    position: relative;
    height: 500px;
    overflow: hidden;
}

.banner-slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
}

.banner-slide.active {
    opacity: 1;
}

.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: #fff;
}

.banner-title {
    font-size: 42px;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

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

/* 区块标题 */
.section {
    padding: 60px 0;
}

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

.section-title {
    font-size: 32px;
    color: var(--dark-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.section-subtitle {
    color: #666;
    font-size: 16px;
    margin-top: 20px;
}

/* 视频卡片网格 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.video-card {
    background: #fff;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.video-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(255, 107, 157, 0.25);
}

.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: var(--transition);
}

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

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background: rgba(255, 107, 157, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.play-btn::before {
    content: '';
    border-style: solid;
    border-width: 12px 0 12px 20px;
    border-color: transparent transparent transparent #fff;
    margin-left: 5px;
}

.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: 13px;
}

.video-info {
    padding: 20px;
}

.video-title {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark-color);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    color: #888;
    font-size: 13px;
}

.video-tag {
    display: inline-block;
    background: var(--light-color);
    color: var(--primary-color);
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    margin-top: 10px;
}

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

.expert-card {
    background: #fff;
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

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

.expert-name {
    font-size: 20px;
    color: var(--dark-color);
    margin-bottom: 8px;
}

.expert-title {
    color: var(--primary-color);
    font-size: 14px;
    margin-bottom: 15px;
}

.expert-desc {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}

/* 功能特性 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.feature-card {
    background: #fff;
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.feature-card:hover .feature-icon,
.feature-card:hover .feature-title,
.feature-card:hover .feature-desc {
    color: #fff;
}

.feature-icon {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: var(--transition);
}

.feature-title {
    font-size: 18px;
    color: var(--dark-color);
    margin-bottom: 10px;
    transition: var(--transition);
}

.feature-desc {
    color: #666;
    font-size: 14px;
    transition: var(--transition);
}

/* 用户评价 */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: #fff;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.testimonial-content {
    font-size: 15px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
    position: relative;
    padding-left: 30px;
}

.testimonial-content::before {
    content: '"';
    position: absolute;
    left: 0;
    top: -10px;
    font-size: 50px;
    color: var(--accent-color);
    font-family: Georgia, serif;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: bold;
}

.testimonial-name {
    font-weight: 600;
    color: var(--dark-color);
}

.testimonial-role {
    font-size: 13px;
    color: #888;
}

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

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

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

.faq-question::after {
    content: '+';
    font-size: 24px;
    color: var(--primary-color);
    transition: var(--transition);
}

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

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 25px 20px;
    max-height: 500px;
}

.faq-answer p {
    color: #666;
    line-height: 1.8;
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, var(--dark-color), #1a1a2e);
    color: #fff;
    padding: 60px 0 30px;
}

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

.footer-brand .logo-text {
    font-size: 28px;
    margin-bottom: 15px;
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
}

.footer-title {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--accent-color);
}

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

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

.footer-links a {
    color: rgba(255,255,255,0.7);
}

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

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

.footer-qrcode img {
    width: 120px;
    border-radius: 8px;
    margin-bottom: 10px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 14px;
}

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

.breadcrumb-list {
    display: flex;
    list-style: none;
    gap: 10px;
    font-size: 14px;
}

.breadcrumb-list li::after {
    content: '/';
    margin-left: 10px;
    color: #999;
}

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

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

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

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 60px 0;
    text-align: center;
    color: #fff;
}

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

.page-desc {
    font-size: 16px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .video-grid, .expert-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .banner {
        height: 350px;
    }
    
    .banner-title {
        font-size: 28px;
    }
    
    .video-grid, .expert-grid, .testimonial-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .section-title {
        font-size: 26px;
    }
}

/* 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;
}

/* 统计数据 */
.stats-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 50px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
    color: #fff;
}

.stat-item h3 {
    font-size: 42px;
    margin-bottom: 10px;
}

.stat-item p {
    font-size: 16px;
    opacity: 0.9;
}

/* CTA按钮 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary-color);
    color: #fff;
}

.btn-primary:hover {
    background: var(--secondary-color);
    color: #fff;
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: #fff;
}