/* 丝瓜视频 - 影视传媒视频社区 主样式表 */
/* 域名: aclpmk.cn */

:root {
    --primary-color: #ff6b9d;
    --secondary-color: #c44569;
    --accent-color: #f8a5c2;
    --dark-color: #2d3436;
    --light-color: #ffeef8;
    --text-color: #333;
    --white: #fff;
    --gradient-pink: linear-gradient(135deg, #ff6b9d 0%, #c44569 100%);
    --shadow: 0 4px 15px rgba(255, 107, 157, 0.2);
    --shadow-hover: 0 8px 25px rgba(255, 107, 157, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

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: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

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

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

.logo-text {
    font-size: 24px;
    font-weight: bold;
    background: var(--gradient-pink);
    -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-size: 16px;
    font-weight: 500;
    color: var(--dark-color);
    padding: 8px 0;
    position: relative;
}

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

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

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

/* 搜索框样式 */
.search-bar {
    background: var(--light-color);
    padding: 15px 0;
    margin-top: 75px;
}

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

.search-input {
    width: 100%;
    padding: 12px 50px 12px 20px;
    border: 2px solid var(--accent-color);
    border-radius: 25px;
    font-size: 16px;
    outline: none;
    transition: border-color 0.3s ease;
}

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

.search-btn {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gradient-pink);
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    color: var(--white);
    cursor: pointer;
    transition: transform 0.3s ease;
}

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

/* Hero Banner */
.hero {
    background: var(--gradient-pink);
    padding: 60px 0;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 42px;
    margin-bottom: 20px;
    line-height: 1.3;
}

.hero-text p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.95;
}

.hero-image {
    flex: 1;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-hover);
}

.hero-image img {
    width: 100%;
    display: block;
}

.btn-primary {
    display: inline-block;
    background: var(--white);
    color: var(--primary-color);
    padding: 15px 35px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

/* 视频卡片样式 */
.section {
    padding: 60px 0;
}

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

.section-title h2 {
    font-size: 32px;
    color: var(--dark-color);
    margin-bottom: 10px;
}

.section-title p {
    color: #666;
    font-size: 16px;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.video-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

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

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

.video-card:hover .video-thumbnail 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%;
    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: 20px solid var(--white);
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 5px;
}

.video-info {
    padding: 15px;
}

.video-info h3 {
    font-size: 16px;
    margin-bottom: 8px;
    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;
    font-size: 13px;
    color: #999;
}

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

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

/* 分类标签 */
.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 30px;
}

.tag {
    padding: 8px 20px;
    background: var(--light-color);
    border-radius: 20px;
    font-size: 14px;
    color: var(--dark-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.tag:hover,
.tag.active {
    background: var(--gradient-pink);
    color: var(--white);
}

/* 专家展示 */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px;
}

.expert-card {
    background: var(--white);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.expert-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 15px;
    overflow: hidden;
    border: 3px solid var(--accent-color);
}

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

.expert-card h3 {
    font-size: 18px;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.expert-title {
    color: var(--primary-color);
    font-size: 14px;
    margin-bottom: 10px;
}

.expert-desc {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
}

.expert-btn {
    display: inline-block;
    padding: 8px 20px;
    background: var(--gradient-pink);
    color: var(--white);
    border-radius: 20px;
    font-size: 14px;
    transition: transform 0.3s ease;
}

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

/* 功能模块 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.feature-item {
    background: var(--light-color);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: var(--gradient-pink);
    color: var(--white);
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.feature-item h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 14px;
    opacity: 0.8;
}

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

.post-item {
    display: flex;
    gap: 15px;
    background: var(--white);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.post-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

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

.post-content {
    flex: 1;
}

.post-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.post-author {
    font-weight: 600;
    color: var(--dark-color);
}

.post-time {
    font-size: 13px;
    color: #999;
}

.post-text {
    margin-bottom: 15px;
    line-height: 1.7;
}

.post-images {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.post-images img {
    width: 150px;
    height: 100px;
    object-fit: cover;
    border-radius: 8px;
}

.post-actions {
    display: flex;
    gap: 20px;
}

.post-action {
    font-size: 14px;
    color: #666;
    cursor: pointer;
}

.post-action:hover {
    color: var(--primary-color);
}

/* 工具卡片样式 */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.tool-card {
    background: var(--white);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.tool-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.tool-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.tool-card p {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.7;
}

.tool-btn {
    display: inline-block;
    padding: 10px 30px;
    background: var(--gradient-pink);
    color: var(--white);
    border-radius: 25px;
    font-size: 14px;
    transition: transform 0.3s ease;
}

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

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

.review-card {
    background: var(--white);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow);
}

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

.review-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
}

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

.review-user h4 {
    font-size: 16px;
    color: var(--dark-color);
}

.review-user span {
    font-size: 13px;
    color: #999;
}

.review-stars {
    color: #ffc107;
    margin-bottom: 10px;
}

.review-text {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

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

.partner-logo {
    width: 120px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all 0.3s ease;
}

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

/* 联系我们 */
.contact-section {
    background: var(--light-color);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

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

.contact-item h4 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.contact-item p {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
}

.qrcode-img {
    width: 150px;
    height: 150px;
    margin: 0 auto;
    border-radius: 10px;
    overflow: hidden;
}

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

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

.faq-item {
    background: var(--white);
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.faq-question:hover {
    background: var(--light-color);
}

.faq-answer {
    padding: 0 20px 20px;
    color: #666;
    font-size: 14px;
    line-height: 1.8;
}

/* 社交分享 */
.social-share {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 20px 0;
}

.social-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-color);
    color: var(--dark-color);
    font-size: 20px;
    transition: all 0.3s ease;
}

.social-btn:hover {
    background: var(--gradient-pink);
    color: var(--white);
    transform: translateY(-3px);
}

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

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--accent-color);
}

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

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

.footer-col a {
    color: #aaa;
    font-size: 14px;
    transition: color 0.3s ease;
}

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

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

.footer-logo img {
    height: 40px;
}

.footer-desc {
    font-size: 14px;
    color: #aaa;
    line-height: 1.8;
}

.footer-qrcodes {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

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

.footer-qrcode img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
}

.footer-qrcode p {
    font-size: 12px;
    color: #aaa;
    margin-top: 5px;
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: #888;
}

.update-time {
    margin-top: 10px;
    font-size: 12px;
    color: #666;
}

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

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

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

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

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

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 32px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
}

@media (max-width: 768px) {
    .header-inner {
        padding: 10px 15px;
    }
    
    .logo-text {
        font-size: 20px;
    }
    
    .search-bar {
        margin-top: 65px;
    }
    
    .hero {
        padding: 40px 0;
    }
    
    .hero-text h1 {
        font-size: 26px;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .section-title h2 {
        font-size: 24px;
    }
    
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-qrcodes {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .expert-grid,
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

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

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

/* 视频播放动画 */
@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.video-card:hover .play-btn {
    animation: pulse 1s infinite;
}

/* AI功能区 */
.ai-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
}

.ai-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px;
}

.ai-card {
    background: rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 25px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.ai-card:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-5px);
}

.ai-card h4 {
    font-size: 18px;
    margin-bottom: 10px;
}

.ai-card p {
    font-size: 14px;
    opacity: 0.9;
}

/* 内页样式 */
.page-header {
    background: var(--gradient-pink);
    padding: 40px 0;
    color: var(--white);
    text-align: center;
}

.page-header h1 {
    font-size: 36px;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 16px;
    opacity: 0.9;
}

.page-content {
    padding: 50px 0;
}

/* 工具卡片 */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.tool-card {
    background: var(--white);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    text-align: center;
}

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

.tool-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--light-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
}

.tool-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.tool-card p {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
}

.tool-btn {
    display: inline-block;
    padding: 10px 25px;
    background: var(--gradient-pink);
    color: var(--white);
    border-radius: 25px;
    font-size: 14px;
    transition: transform 0.3s ease;
}

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

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

.post-item {
    background: var(--white);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow);
    display: flex;
    gap: 20px;
}

.post-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

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

.post-content {
    flex: 1;
}

.post-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.post-author {
    font-weight: bold;
    color: var(--dark-color);
}

.post-time {
    font-size: 13px;
    color: #999;
}

.post-text {
    font-size: 15px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 15px;
}

.post-images {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.post-images img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
}

.post-actions {
    display: flex;
    gap: 20px;
}

.post-action {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
    color: #666;
    cursor: pointer;
    transition: color 0.3s ease;
}

.post-action:hover {
    color: var(--primary-color);
}