/* ============================================
   00761.hk 全新原创CSS样式
   配色方案：Teal (#14b8a6) + Orange (#f97316) + Gold (#fbbf24)
   设计风格：现代、活力、专业
   ============================================ */

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

:root {
    --primary-color: #14b8a6;
    --secondary-color: #f97316;
    --accent-color: #fbbf24;
    --dark-bg: #0f172a;
    --light-bg: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(0,0,0,0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: var(--white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* ============================================
   头部导航 - .header
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1e293b 100%);
    padding: 15px 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    backdrop-filter: blur(10px);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-img {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(20, 184, 166, 0.4);
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-menu li a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    padding: 10px 18px;
    border-radius: 8px;
    transition: var(--transition);
    display: block;
}

.nav-menu li a:hover {
    background: rgba(20, 184, 166, 0.3);
    color: var(--accent-color);
}

/* ============================================
   搜索栏 - .search-bar
   ============================================ */
.search-bar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 20px 0;
    margin-top: 80px;
}

.search-container {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 50px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.search-input {
    flex: 1;
    padding: 15px 25px;
    border: none;
    font-size: 16px;
    outline: none;
}

.search-btn {
    padding: 15px 30px;
    background: var(--dark-bg);
    border: none;
    color: var(--white);
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
}

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

/* ============================================
   Hero区域 - .hero
   ============================================ */
.hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/banner-main.jpg') center/cover no-repeat;
    opacity: 0.2;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: #cbd5e1;
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.btn {
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    box-shadow: 0 8px 20px rgba(20, 184, 166, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(20, 184, 166, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.5);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--accent-color);
}

/* ============================================
   通用章节样式 - .section
   ============================================ */
.section {
    padding: 80px 0;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-light);
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
}

/* ============================================
   视频卡片 - .video-card
   ============================================ */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.video-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.video-thumbnail {
    position: relative;
    padding-top: 56.25%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    overflow: hidden;
}

.video-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.play-button {
    width: 70px;
    height: 70px;
    background: rgba(255,255,255,0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
    transform: scale(0.8);
    transition: var(--transition);
}

.video-card:hover .play-button {
    transform: scale(1);
}

.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.8);
    color: var(--white);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
}

.video-info {
    padding: 20px;
}

.video-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    gap: 15px;
    font-size: 13px;
    color: var(--text-light);
}

.video-views, .video-likes, .video-comments {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ============================================
   娱乐专区卡片
   ============================================ */
.entertainment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.entertainment-card {
    background: var(--white);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.entertainment-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.entertainment-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.entertainment-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
}

.entertainment-count {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-color);
}

.entertainment-label {
    font-size: 13px;
    color: var(--text-light);
}

/* ============================================
   AI赋能卡片
   ============================================ */
.ai-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.ai-card {
    background: var(--white);
    border-radius: 16px;
    padding: 35px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
}

.ai-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.ai-icon {
    font-size: 42px;
    margin-bottom: 20px;
}

.ai-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.ai-desc {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.ai-features {
    list-style: none;
}

.ai-features li {
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-dark);
    border-bottom: 1px solid #f1f5f9;
}

.ai-features li:last-child {
    border-bottom: none;
}

/* ============================================
   社区功能卡片
   ============================================ */
.community-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.community-card {
    background: linear-gradient(135deg, var(--white) 0%, #f8fafc 100%);
    border-radius: 16px;
    padding: 35px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.community-icon {
    font-size: 36px;
    margin-bottom: 15px;
}

.community-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.community-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.6;
}

.community-stat {
    font-size: 16px;
    font-weight: 700;
    color: var(--secondary-color);
}

/* ============================================
   专家团队卡片
   ============================================ */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 35px;
}

.expert-card {
    background: var(--white);
    border-radius: 20px;
    padding: 35px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.expert-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
}

.expert-card:hover {
    transform: translateY(-10px);
}

.expert-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 20px;
    overflow: hidden;
    border: 4px solid var(--light-bg);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

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

.expert-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.expert-role {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.expert-desc {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
}

.expert-stats {
    display: flex;
    justify-content: center;
    gap: 20px;
    font-size: 13px;
    color: var(--text-dark);
}

/* ============================================
   公司实力区域
   ============================================ */
.company-section {
    background: var(--light-bg);
}

.company-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.company-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.company-image img {
    width: 100%;
    height: auto;
    display: block;
}

.company-info {
    background: var(--white);
    border-radius: 16px;
    padding: 35px;
    box-shadow: var(--shadow);
}

.company-info h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.company-info table {
    width: 100%;
    border-collapse: collapse;
}

.company-info td {
    padding: 12px 0;
    border-bottom: 1px solid #f1f5f9;
    font-size: 14px;
}

.company-info td:first-child {
    color: var(--text-light);
    width: 100px;
}

.company-info td:last-child {
    color: var(--text-dark);
    font-weight: 500;
}

/* ============================================
   用户评价区域
   ============================================ */
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.review-card {
    background: var(--white);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.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));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 18px;
}

.review-author {
    flex: 1;
}

.review-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
}

.review-role {
    font-size: 13px;
    color: var(--text-light);
}

.review-rating {
    color: var(--accent-color);
    font-size: 14px;
}

.review-content {
    font-size: 14px;
    color: var(--text-dark);
    line-height: 1.7;
    margin-bottom: 15px;
}

.review-date {
    font-size: 12px;
    color: var(--text-light);
}

/* ============================================
   页脚 - .footer
   ============================================ */
.footer {
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1e293b 100%);
    color: var(--white);
    padding: 60px 0 20px;
}

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

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

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

.footer-logo span {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-color);
}

.footer-desc {
    font-size: 14px;
    color: #cbd5e1;
    line-height: 1.6;
    margin-bottom: 15px;
}

.footer-section h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--accent-color);
}

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

.footer-links li {
    margin-bottom: 10px;
    font-size: 14px;
    color: #cbd5e1;
}

.footer-links a {
    color: #cbd5e1;
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-qr {
    display: flex;
    gap: 15px;
}

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

.qr-item img {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    margin-bottom: 8px;
}

.qr-label {
    font-size: 12px;
    color: #94a3b8;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
    color: #94a3b8;
}

.footer-bottom a {
    color: var(--accent-color);
    text-decoration: none;
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .company-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 42px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .header {
        padding: 12px 0;
    }
    
    .search-bar {
        margin-top: 74px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .footer-qr {
        justify-content: center;
    }
}

/* ============================================
   动画效果
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* 懒加载占位符 */
img[data-src] {
    filter: blur(10px);
    transition: filter 0.3s;
}

img[data-src].loaded {
    filter: blur(0);
}