/* 小小绘 - 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6B21A8;
    --secondary-color: #3B82F6;
    --accent-color: #EC4899;
    --dark-bg: #0F0C29;
    --dark-purple: #302B63;
    --text-light: #F3F4F6;
    --text-gray: #9CA3AF;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-purple) 100%);
    color: var(--text-light);
    line-height: 1.6;
    min-height: 100vh;
}

/* 头部导航 */
header {
    background: rgba(15, 12, 41, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(107, 33, 168, 0.3);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-section img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

nav a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 6px;
}

nav a:hover {
    background: rgba(107, 33, 168, 0.2);
    color: var(--secondary-color);
}

/* 搜索框 */
.search-container {
    max-width: 1400px;
    margin: 30px auto;
    padding: 0 20px;
}

.search-box {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.search-box input {
    width: 100%;
    padding: 15px 50px 15px 20px;
    border: 2px solid rgba(107, 33, 168, 0.5);
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-light);
    font-size: 16px;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--secondary-color);
    background: rgba(255, 255, 255, 0.1);
}

.search-box button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    padding: 10px 20px;
    border-radius: 50px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

/* 主要内容区域 */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Hero Banner */
.hero-section {
    position: relative;
    height: 500px;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 60px;
}

.hero-section img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50px;
    transform: translateY(-50%);
    max-width: 600px;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 30px;
    text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.5);
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(107, 33, 168, 0.5);
}

/* 区块标题 */
.section-title {
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 动漫卡片网格 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.video-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid rgba(107, 33, 168, 0.3);
}

.video-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(107, 33, 168, 0.4);
    border-color: var(--secondary-color);
}

.video-thumbnail {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(107, 33, 168, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
}

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

.play-button::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 20px solid white;
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 5px;
}

.video-info {
    padding: 20px;
}

.video-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--text-light);
}

.video-meta {
    display: flex;
    justify-content: space-between;
    color: var(--text-gray);
    font-size: 14px;
}

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

/* 专家展示 */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.expert-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    border: 1px solid rgba(107, 33, 168, 0.3);
    transition: all 0.3s ease;
}

.expert-card:hover {
    transform: translateY(-5px);
    border-color: var(--secondary-color);
}

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

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

.expert-name {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
}

.expert-title {
    color: var(--text-gray);
    margin-bottom: 15px;
}

.expert-contact {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(107, 33, 168, 0.3);
    border-radius: 20px;
    font-size: 14px;
    text-decoration: none;
    color: var(--text-light);
    transition: all 0.3s ease;
}

.expert-contact:hover {
    background: var(--primary-color);
}

/* FAQ区块 */
.faq-section {
    max-width: 900px;
    margin: 0 auto 60px;
}

.faq-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 20px;
    border: 1px solid rgba(107, 33, 168, 0.3);
}

.faq-question {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.faq-answer {
    color: var(--text-gray);
    line-height: 1.8;
}

/* 用户评论 */
.reviews-section {
    margin-bottom: 60px;
}

.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.review-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid rgba(107, 33, 168, 0.3);
}

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

.review-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.review-author {
    font-weight: bold;
}

.review-rating {
    color: #FBBF24;
}

.review-text {
    color: var(--text-gray);
    line-height: 1.8;
}

/* 页脚 */
footer {
    background: rgba(15, 12, 41, 0.95);
    border-top: 1px solid rgba(107, 33, 168, 0.3);
    padding: 50px 20px 30px;
    margin-top: 80px;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

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

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

.footer-section a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

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

.social-icon {
    width: 40px;
    height: 40px;
    background: rgba(107, 33, 168, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: var(--primary-color);
    transform: scale(1.1);
}

.qr-codes {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.qr-code {
    text-align: center;
}

.qr-code img {
    width: 120px;
    height: 120px;
    background: white;
    padding: 10px;
    border-radius: 10px;
}

.qr-code p {
    margin-top: 10px;
    font-size: 14px;
    color: var(--text-gray);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(107, 33, 168, 0.3);
    color: var(--text-gray);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        height: auto;
        padding: 20px;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
    
    .hero-content {
        left: 20px;
        right: 20px;
    }
    
    .hero-content h1 {
        font-size: 32px;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .review-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

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

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

/* 懒加载占位 */
img[loading="lazy"] {
    background: rgba(255, 255, 255, 0.05);
}