/* 168.fun黑瓜吃料网官网 - 主样式文件 */
/* 全局重置与基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #ff6b9d;
    --secondary-color: #9b59b6;
    --accent-color: #e74c8c;
    --dark-bg: #1a1a2e;
    --light-bg: #f8f9fa;
    --text-dark: #2c3e50;
    --text-light: #ffffff;
    --gradient-primary: linear-gradient(135deg, #ff6b9d 0%, #9b59b6 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --shadow-light: 0 4px 15px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 15px 50px rgba(0, 0, 0, 0.2);
}

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航样式 */
.header {
    background: var(--gradient-dark);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-medium);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

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

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

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-light);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-menu li a {
    color: var(--text-light);
    font-size: 1rem;
    font-weight: 500;
    padding: 10px 15px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    background: var(--gradient-primary);
    color: var(--text-light);
}

/* 搜索框样式 */
.search-bar {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.search-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.search-input {
    width: 500px;
    max-width: 100%;
    padding: 12px 20px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.9);
    outline: none;
    transition: all 0.3s ease;
}

.search-input:focus {
    box-shadow: 0 0 20px rgba(255, 107, 157, 0.5);
}

.search-btn {
    padding: 12px 30px;
    background: var(--gradient-primary);
    color: var(--text-light);
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(255, 107, 157, 0.5);
}

/* 横幅Banner样式 */
.hero-banner {
    position: relative;
    height: 500px;
    overflow: hidden;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to right, rgba(26, 26, 46, 0.9), rgba(26, 26, 46, 0.3));
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 600px;
    padding-left: 50px;
    color: var(--text-light);
}

.hero-content h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    line-height: 1.3;
}

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

.hero-btn {
    display: inline-block;
    padding: 15px 40px;
    background: var(--gradient-primary);
    color: var(--text-light);
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.hero-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 107, 157, 0.5);
}

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

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

.section-header h2 {
    font-size: 2.2rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 20px auto 0;
}

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

.video-card {
    background: var(--text-light);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

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

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.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: all 0.3s ease;
}

.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 white;
    margin-left: 5px;
}

.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.video-info {
    padding: 20px;
}

.video-info h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-dark);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #888;
    font-size: 0.9rem;
}

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

.video-stats span {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 分类标签 */
.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 40px;
}

.category-tag {
    padding: 10px 25px;
    background: var(--text-light);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 25px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-tag:hover,
.category-tag.active {
    background: var(--gradient-primary);
    color: var(--text-light);
    border-color: transparent;
}

/* 专家展示区 */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.expert-card {
    background: var(--text-light);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
}

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

.expert-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 20px;
    overflow: hidden;
    border: 4px solid var(--primary-color);
}

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

.expert-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.expert-title {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 15px;
}

.expert-desc {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.7;
}

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

.expert-btn {
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.expert-btn.primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    border: none;
}

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

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

/* 用户评价区 */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.testimonial-card {
    background: var(--text-light);
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow-light);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    font-size: 5rem;
    color: var(--primary-color);
    opacity: 0.2;
    position: absolute;
    top: 10px;
    left: 20px;
    font-family: Georgia, serif;
}

.testimonial-content {
    font-size: 1rem;
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

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

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

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

.testimonial-info h4 {
    font-size: 1rem;
    color: var(--text-dark);
}

.testimonial-info span {
    font-size: 0.85rem;
    color: #888;
}

/* 合作品牌墙 */
.partner-section {
    background: var(--gradient-dark);
    padding: 60px 0;
}

.partner-section .section-header h2 {
    color: var(--text-light);
}

.partner-section .section-header p {
    color: rgba(255, 255, 255, 0.7);
}

.partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    align-items: center;
}

.partner-logo {
    width: 150px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.partner-logo:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.partner-logo img {
    max-width: 80%;
    max-height: 60%;
    filter: brightness(0) invert(1);
    opacity: 0.8;
}

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

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

.faq-question {
    padding: 20px 25px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

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

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.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;
}

/* 联系我们区域 */
.contact-section {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.contact-card {
    background: var(--text-light);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-light);
}

.contact-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    color: var(--text-light);
}

.contact-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.contact-card p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.7;
}

.qrcode-container {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
}

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

.qrcode-item img {
    width: 150px;
    height: 150px;
    border-radius: 10px;
    box-shadow: var(--shadow-light);
}

.qrcode-item p {
    margin-top: 10px;
    color: #666;
    font-size: 0.9rem;
}

/* 社交分享按钮 */
.share-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.share-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.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;
}

/* 页脚样式 */
.footer {
    background: var(--gradient-dark);
    color: var(--text-light);
    padding: 60px 0 30px;
}

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

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--gradient-primary);
}

.footer-col p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 10px;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

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

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

.update-time {
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

/* 面包屑导航 */
.breadcrumb {
    padding: 15px 0;
    background: rgba(0, 0, 0, 0.03);
}

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

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

.breadcrumb-list li:last-child {
    color: var(--primary-color);
}

/* 内页样式 */
.page-header {
    background: var(--gradient-dark);
    padding: 80px 0;
    text-align: center;
    color: var(--text-light);
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
}

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

.tool-card {
    background: var(--text-light);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
}

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

.tool-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: var(--text-light);
}

.tool-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.tool-card p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.tool-btn {
    display: inline-block;
    padding: 10px 25px;
    background: var(--gradient-primary);
    color: var(--text-light);
    border-radius: 20px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

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

/* 社区帖子样式 */
.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.post-card {
    background: var(--text-light);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
}

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

.post-header {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    border-bottom: 1px solid #eee;
}

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

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

.post-author h4 {
    font-size: 1rem;
    color: var(--text-dark);
}

.post-author span {
    font-size: 0.85rem;
    color: #888;
}

.post-content {
    padding: 20px;
}

.post-content p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 15px;
}

.post-image {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
}

.post-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.post-footer {
    display: flex;
    justify-content: space-around;
    padding: 15px 20px;
    border-top: 1px solid #eee;
}

.post-action {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #888;
    font-size: 0.9rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

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

/* 响应式设计 */
@media (max-width: 992px) {
    .nav-menu {
        display: none;
    }
    
    .hero-content {
        padding: 20px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .search-input {
        width: 300px;
    }
}

@media (max-width: 768px) {
    .hero-banner {
        height: 400px;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .video-grid,
    .expert-grid,
    .testimonial-grid,
    .tool-grid,
    .post-grid {
        grid-template-columns: 1fr;
    }
    
    .qrcode-container {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-col h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 480px) {
    .search-container {
        flex-direction: column;
    }
    
    .search-input {
        width: 100%;
    }
    
    .hero-content h1 {
        font-size: 1.5rem;
    }
    
    .hero-btn {
        padding: 12px 30px;
        font-size: 1rem;
    }
}

/* 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;
}

/* 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;
    }
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    border-radius: 2px;
    transition: all 0.3s ease;
}

@media (max-width: 992px) {
    .mobile-menu-btn {
        display: flex;
    }
}

/* 特色功能区 */
.feature-section {
    background: linear-gradient(135deg, #fff5f8 0%, #f0e6ff 100%);
}

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

@media (max-width: 992px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

.feature-item {
    background: var(--text-light);
    border-radius: 15px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 1.5rem;
    color: var(--text-light);
}

.feature-item h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.feature-item p {
    color: #666;
    font-size: 0.9rem;
}