/* 
 * 小孩把钢筋喂给姐姐吃视频大全 官方网站样式
 * 域名: axjmss.com
 */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 头部导航 */
.header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #fff;
}

.logo img {
    height: 45px;
    margin-right: 10px;
    border-radius: 8px;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: bold;
    background: linear-gradient(90deg, #ff6b9d, #c44dff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 5px;
}

.nav-menu a {
    color: #fff;
    text-decoration: none;
    padding: 10px 18px;
    border-radius: 25px;
    transition: all 0.3s;
    font-size: 0.95rem;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: linear-gradient(135deg, #ff6b9d, #c44dff);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 搜索栏 */
.search-bar {
    background: #1a1a2e;
    padding: 15px 0;
}

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

.search-input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 25px 0 0 25px;
    font-size: 1rem;
    outline: none;
}

.search-btn {
    padding: 12px 25px;
    background: linear-gradient(135deg, #ff6b9d, #c44dff);
    color: #fff;
    border: none;
    border-radius: 0 25px 25px 0;
    cursor: pointer;
    font-size: 1rem;
    transition: opacity 0.3s;
}

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

/* 面包屑 */
.breadcrumb {
    background: #fff;
    padding: 12px 0;
    border-bottom: 1px solid #eee;
}

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

.breadcrumb-list li::after {
    content: ">";
    margin: 0 10px;
    color: #999;
}

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

.breadcrumb-list a {
    color: #666;
    text-decoration: none;
}

.breadcrumb-list a:hover {
    color: #ff6b9d;
}

/* Hero区域 */
.hero {
    position: relative;
    height: 450px;
    overflow: hidden;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26,26,46,0.8), rgba(22,33,62,0.7));
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    width: 90%;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-btn {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, #ff6b9d, #c44dff);
    color: #fff;
    text-decoration: none;
    border-radius: 30px;
    font-size: 1.1rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

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

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

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

.section-header h2 {
    font-size: 1.8rem;
    color: #1a1a2e;
    margin-bottom: 10px;
}

.section-header p {
    color: #666;
    font-size: 1rem;
}

/* 标签列表 */
.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.tag {
    padding: 8px 20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: transform 0.3s;
}

.tag:hover {
    transform: scale(1.05);
}

/* 视频卡片网格 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.video-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.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;
}

.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;
    cursor: pointer;
}

.play-btn::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 55%;
    transform: translate(-50%, -50%);
    border-left: 18px solid #fff;
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
}

.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-info {
    padding: 15px;
}

.video-info h3 {
    font-size: 1rem;
    margin-bottom: 10px;
    color: #333;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

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

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

.feature-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #1a1a2e;
}

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

/* 工具卡片 */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.tool-card {
    display: flex;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.tool-img {
    width: 150px;
    flex-shrink: 0;
}

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

.tool-info {
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.tool-info h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: #1a1a2e;
}

.tool-info p {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.tool-btn {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, #ff6b9d, #c44dff);
    color: #fff;
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.9rem;
    align-self: flex-start;
}

/* 专家卡片 */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.expert-card {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.expert-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin-bottom: 15px;
    border: 3px solid #ff6b9d;
}

.expert-card h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: #1a1a2e;
}

.expert-title {
    color: #ff6b9d;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

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

.expert-btn {
    display: inline-block;
    padding: 8px 25px;
    background: linear-gradient(135deg, #ff6b9d, #c44dff);
    color: #fff;
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* 帖子卡片 */
.post-list {
    max-width: 800px;
    margin: 0 auto;
}

.post-card {
    display: flex;
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.post-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
}

.post-content {
    flex: 1;
}

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

.post-user {
    font-weight: bold;
    color: #1a1a2e;
}

.post-time {
    color: #999;
    font-size: 0.85rem;
}

.post-text {
    color: #333;
    margin-bottom: 10px;
    line-height: 1.6;
}

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

.post-action {
    color: #999;
    font-size: 0.9rem;
    cursor: pointer;
}

.post-action:hover {
    color: #ff6b9d;
}

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

.faq-item {
    background: #fff;
    border-radius: 10px;
    margin-bottom: 10px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 18px 20px;
    background: none;
    border: none;
    text-align: left;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question:hover {
    background: #f9f9f9;
}

.faq-answer {
    padding: 0 20px 18px;
    color: #666;
    display: none;
}

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

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

.review-card {
    background: #fff;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

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

.review-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
}

.review-user h4 {
    font-size: 1rem;
    margin-bottom: 5px;
}

.review-stars {
    color: #ffc107;
}

.review-text {
    color: #666;
    line-height: 1.6;
}

/* 联系区域 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.contact-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
}

.contact-card h3 {
    font-size: 1.2rem;
    color: #ff6b9d;
    margin-bottom: 20px;
}

.contact-card p {
    color: #666;
    margin-bottom: 10px;
}

.qrcode-group {
    display: flex;
    gap: 20px;
    margin-top: 15px;
}

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

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

.qrcode-item span {
    display: block;
    margin-top: 8px;
    color: #666;
    font-size: 0.85rem;
}

/* 分享按钮 */
.share-section {
    text-align: center;
    padding: 30px 0;
    background: #f9f9f9;
}

.share-btns {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
}

.share-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-decoration: none;
    font-size: 1.2rem;
    transition: transform 0.3s;
}

.share-btn:hover {
    transform: scale(1.1);
}

.share-btn.wechat { background: #07c160; }
.share-btn.weibo { background: #e6162d; }
.share-btn.douyin { background: #000; }
.share-btn.bilibili { background: #fb7299; }

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
    padding: 50px 0 20px;
}

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

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #ff6b9d;
}

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

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

.footer-col a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #ff6b9d, #c44dff);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

/* 动画 */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s, transform 0.6s;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #1a1a2e;
        flex-direction: column;
        padding: 20px;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .hero {
        height: 350px;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .tool-card {
        flex-direction: column;
    }
    
    .tool-img {
        width: 100%;
        height: 150px;
    }
}