/* ============================================
   玩物社区 全站样式表
   品牌：玩物社区 | 域名：126521.cn
   影视传媒公司 + 视频社区
   ============================================ */

/* CSS Variables */
:root {
    --primary: #E84393;
    --secondary: #6C5CE7;
    --accent: #00CEC9;
    --dark-bg: #1A1A2E;
    --light-bg: #F8F9FA;
    --text-color: #2D3436;
    --white: #FFFFFF;
    --gray-100: #F1F2F6;
    --gray-200: #DFE6E9;
    --gray-300: #B2BEC3;
    --gray-500: #636E72;
    --gradient-primary: linear-gradient(135deg, #E84393, #6C5CE7);
    --gradient-accent: linear-gradient(135deg, #00CEC9, #6C5CE7);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text-color);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--dark-bg); }

/* Container */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section-padding { padding: 80px 0; }

/* ============ Header & Navigation ============ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: var(--transition);
}
.site-header.scrolled { background: rgba(26, 26, 46, 0.98); box-shadow: var(--shadow-md); }
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo img { height: 42px; width: auto; }
.logo-text { color: var(--white); font-size: 1.3rem; font-weight: 700; }
.logo-text span { background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

/* Main Nav */
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
    color: rgba(255,255,255,0.8);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
    color: var(--white);
    background: rgba(232, 67, 147, 0.2);
}

/* Mobile Menu */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}
.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
    border-radius: 2px;
}

/* Search Bar */
.search-bar-wrapper {
    background: var(--dark-bg);
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    margin-top: 70px;
}
.search-bar {
    max-width: 680px;
    margin: 0 auto;
    display: flex;
    gap: 0;
    padding: 0 20px;
}
.search-bar input {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid rgba(232, 67, 147, 0.3);
    border-right: none;
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    background: rgba(255,255,255,0.06);
    color: var(--white);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}
.search-bar input::placeholder { color: rgba(255,255,255,0.4); }
.search-bar input:focus { border-color: var(--primary); background: rgba(255,255,255,0.1); }
.search-bar button {
    padding: 12px 28px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.search-bar button:hover { opacity: 0.9; transform: scale(1.02); }

/* ============ Banner / Hero ============ */
.hero-banner {
    position: relative;
    min-height: 560px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--dark-bg);
}
.hero-banner .hero-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    opacity: 0.55;
}
.hero-banner .hero-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(180deg, rgba(26,26,46,0.4) 0%, rgba(26,26,46,0.85) 100%);
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 40px 20px;
}
.hero-content h1 {
    font-size: 2.8rem;
    color: var(--white);
    margin-bottom: 16px;
    line-height: 1.2;
}
.hero-content h1 .brand-highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-content .hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 32px;
    line-height: 1.8;
}
.hero-content .hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 32px;
}
.hero-content .hero-tags span {
    padding: 6px 18px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 20px;
    color: rgba(255,255,255,0.85);
    font-size: 0.88rem;
}
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(232,67,147,0.4); color: var(--white); }
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

/* ============ Section Headers ============ */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}
.section-header h2 {
    font-size: 2rem;
    margin-bottom: 12px;
}
.section-header h2 .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.section-header p {
    color: var(--gray-500);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}
.section-divider {
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    margin: 16px auto 0;
    border-radius: 2px;
}

/* ============ Video Cards Grid ============ */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.video-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
}
.video-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.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 0.5s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.08); }
.video-play-btn {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    width: 64px; height: 64px;
    background: rgba(232, 67, 147, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}
.video-play-btn::after {
    content: '';
    width: 0; height: 0;
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent var(--white);
    margin-left: 3px;
}
.video-card:hover .video-play-btn { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.75);
    color: var(--white);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}
.video-info { padding: 16px; }
.video-info h3 {
    font-size: 1rem;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}
.video-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray-500);
    font-size: 0.85rem;
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-tag {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(232, 67, 147, 0.08);
    color: var(--primary);
    border-radius: 4px;
    font-size: 0.78rem;
    margin-top: 8px;
}

/* ============ Sports Section ============ */
.sports-section { background: var(--gray-100); }
.sports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}
.sports-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    height: 220px;
    cursor: pointer;
}
.sports-card img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.sports-card:hover img { transform: scale(1.1); }
.sports-card .card-overlay {
    position: absolute;
    bottom: 0; left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(transparent, rgba(26,26,46,0.9));
    color: var(--white);
}
.sports-card .card-overlay h3 { color: var(--white); font-size: 1.1rem; margin-bottom: 4px; }
.sports-card .card-overlay p { font-size: 0.85rem; opacity: 0.8; }

/* ============ Feature Modules ============ */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}
.feature-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}
.feature-icon {
    width: 64px; height: 64px;
    margin: 0 auto 20px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--white);
}
.feature-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.feature-card p { color: var(--gray-500); font-size: 0.92rem; line-height: 1.7; }

/* ============ AI Section ============ */
.ai-section {
    background: var(--dark-bg);
    color: var(--white);
    position: relative;
    overflow: hidden;
}
.ai-section::before {
    content: '';
    position: absolute;
    top: -50%; right: -20%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(108,92,231,0.15) 0%, transparent 70%);
    border-radius: 50%;
}
.ai-section .section-header h2 { color: var(--white); }
.ai-section .section-header p { color: rgba(255,255,255,0.6); }
.ai-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}
.ai-image { border-radius: var(--radius-md); overflow: hidden; }
.ai-image img { width: 100%; border-radius: var(--radius-md); }
.ai-features { display: flex; flex-direction: column; gap: 24px; }
.ai-feature-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.08);
    transition: var(--transition);
}
.ai-feature-item:hover { background: rgba(255,255,255,0.08); border-color: var(--primary); }
.ai-feature-num {
    flex-shrink: 0;
    width: 40px; height: 40px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}
.ai-feature-item h4 { color: var(--white); margin-bottom: 6px; font-size: 1.05rem; }
.ai-feature-item p { color: rgba(255,255,255,0.6); font-size: 0.9rem; }

/* ============ Community Section ============ */
.community-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}
.community-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}
.community-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.community-icon {
    font-size: 2.2rem;
    margin-bottom: 14px;
    display: block;
}
.community-card h4 { font-size: 1rem; margin-bottom: 8px; }
.community-card p { color: var(--gray-500); font-size: 0.85rem; }

/* ============ Experts Section ============ */
.experts-section { background: var(--gray-100); }
.experts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}
.expert-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
}
.expert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.expert-avatar {
    width: 100%;
    height: 260px;
    overflow: hidden;
}
.expert-avatar img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.expert-card:hover .expert-avatar img { transform: scale(1.05); }
.expert-info { padding: 20px; }
.expert-info h3 { font-size: 1.15rem; margin-bottom: 4px; }
.expert-info .expert-title { color: var(--primary); font-size: 0.9rem; margin-bottom: 10px; }
.expert-info p { color: var(--gray-500); font-size: 0.88rem; margin-bottom: 16px; }
.expert-btns { display: flex; gap: 10px; justify-content: center; }
.expert-btns a {
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
}
.expert-btns .btn-sm-primary {
    background: var(--gradient-primary);
    color: var(--white);
}
.expert-btns .btn-sm-outline {
    border: 1px solid var(--primary);
    color: var(--primary);
}
.expert-btns .btn-sm-outline:hover { background: var(--primary); color: var(--white); }

/* ============ Partners / Logo Wall ============ */
.partners-wall {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
    align-items: center;
}
.partner-logo {
    width: 160px;
    height: 80px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    transition: var(--transition);
    font-weight: 700;
    color: var(--gray-500);
    font-size: 0.9rem;
}
.partner-logo:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }

/* ============ Reviews Section ============ */
.reviews-section { background: var(--gray-100); }
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.review-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.review-card:hover { box-shadow: var(--shadow-md); }
.review-stars { color: #F39C12; font-size: 1rem; margin-bottom: 12px; letter-spacing: 2px; }
.review-text { color: var(--gray-500); font-size: 0.92rem; line-height: 1.8; margin-bottom: 16px; font-style: italic; }
.review-author { display: flex; align-items: center; gap: 12px; }
.review-author-avatar {
    width: 42px; height: 42px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1rem;
}
.review-author-info h4 { font-size: 0.95rem; margin-bottom: 2px; }
.review-author-info span { font-size: 0.82rem; color: var(--gray-500); }

/* ============ FAQ Section ============ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: var(--white);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}
.faq-question {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-toggle {
    width: 28px; height: 28px;
    border-radius: 50%;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
    flex-shrink: 0;
}
.faq-item.active .faq-toggle { background: var(--primary); color: var(--white); transform: rotate(45deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-item.active .faq-answer { max-height: 300px; }
.faq-answer-inner {
    padding: 0 24px 20px;
    color: var(--gray-500);
    font-size: 0.92rem;
    line-height: 1.8;
}

/* ============ How-To Guide ============ */
.howto-steps {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 28px;
    counter-reset: step;
}
.howto-step {
    text-align: center;
    padding: 28px 20px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    position: relative;
    counter-increment: step;
}
.howto-step::before {
    content: counter(step);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px; height: 48px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0 auto 16px;
}
.howto-step h4 { margin-bottom: 8px; font-size: 1.05rem; }
.howto-step p { color: var(--gray-500); font-size: 0.9rem; }

/* ============ Contact Section ============ */
.contact-section { background: var(--dark-bg); color: var(--white); }
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 32px;
}
.contact-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-md);
    padding: 28px;
    text-align: center;
    transition: var(--transition);
}
.contact-card:hover { border-color: var(--primary); background: rgba(255,255,255,0.08); }
.contact-icon { font-size: 2rem; margin-bottom: 14px; display: block; }
.contact-card h4 { color: var(--white); margin-bottom: 8px; }
.contact-card p { color: rgba(255,255,255,0.6); font-size: 0.9rem; }

/* ============ Share Buttons ============ */
.share-section { text-align: center; padding: 40px 0; background: var(--gray-100); }
.share-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 20px; }
.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}
.share-btn:hover { transform: translateY(-2px); color: var(--white); opacity: 0.9; }
.share-btn.wechat { background: #07C160; }
.share-btn.weibo { background: #E6162D; }
.share-btn.douyin { background: #161823; }
.share-btn.bilibili { background: #00A1D6; }

/* ============ Footer ============ */
.site-footer {
    background: #0F0F1E;
    color: rgba(255,255,255,0.6);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.8; margin-bottom: 20px; }
.footer-qrcodes { display: flex; gap: 16px; }
.footer-qrcodes .qr-item { text-align: center; }
.footer-qrcodes .qr-item img { width: 100px; height: 100px; border-radius: 8px; margin-bottom: 6px; }
.footer-qrcodes .qr-item span { font-size: 0.78rem; color: rgba(255,255,255,0.5); }
.footer-col h4 { color: var(--white); font-size: 1rem; margin-bottom: 16px; }
.footer-col a { display: block; color: rgba(255,255,255,0.5); padding: 4px 0; font-size: 0.9rem; transition: var(--transition); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
}
.footer-bottom a { color: var(--primary); }

/* ============ Breadcrumb ============ */
.breadcrumb {
    padding: 16px 0;
    font-size: 0.88rem;
    color: var(--gray-500);
    margin-top: 70px;
}
.breadcrumb a { color: var(--primary); }
.breadcrumb span { margin: 0 8px; }

/* ============ Inner Page Hero ============ */
.inner-hero {
    background: var(--dark-bg);
    padding: 100px 0 50px;
    text-align: center;
    margin-top: 70px;
}
.inner-hero h1 { color: var(--white); font-size: 2.2rem; margin-bottom: 12px; }
.inner-hero p { color: rgba(255,255,255,0.7); font-size: 1.05rem; }

/* ============ Lazy Load ============ */
img[data-src] { opacity: 0; transition: opacity 0.5s ease; }
img[data-src].loaded { opacity: 1; }

/* ============ Responsive ============ */
@media (max-width: 992px) {
    .main-nav { display: none; position: fixed; top: 70px; left: 0; width: 100%; background: var(--dark-bg); flex-direction: column; padding: 20px; gap: 4px; border-top: 1px solid rgba(255,255,255,0.08); }
    .main-nav.open { display: flex; }
    .main-nav a { padding: 12px 16px; }
    .mobile-toggle { display: flex; }
    .hero-content h1 { font-size: 2rem; }
    .ai-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .section-padding { padding: 50px 0; }
    .hero-banner { min-height: 460px; }
    .hero-content h1 { font-size: 1.7rem; }
    .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
    .footer-grid { grid-template-columns: 1fr; }
    .experts-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
    .hero-content h1 { font-size: 1.4rem; }
    .hero-btns { flex-direction: column; align-items: center; }
    .btn-primary, .btn-outline { width: 100%; justify-content: center; }
    .experts-grid { grid-template-columns: 1fr; }
    .search-bar { flex-direction: column; }
    .search-bar input { border-right: 2px solid rgba(232, 67, 147, 0.3); border-radius: var(--radius-sm); }
    .search-bar button { border-radius: var(--radius-sm); }
}

/* ============ Animations ============ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.6s ease forwards; }

/* ============ Stats Bar ============ */
.stats-bar {
    background: var(--gradient-primary);
    padding: 40px 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
    color: var(--white);
}
.stat-item h3 { font-size: 2.2rem; color: var(--white); margin-bottom: 4px; }
.stat-item p { font-size: 0.9rem; opacity: 0.85; }

@media (max-width: 768px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============ Page Content ============ */
.page-content {
    padding: 40px 0 80px;
}
.page-content h2 { margin-bottom: 20px; }
.page-content p { margin-bottom: 16px; line-height: 1.8; }
.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}
.sidebar {
    background: var(--gray-100);
    border-radius: var(--radius-md);
    padding: 24px;
}
.sidebar h3 { font-size: 1.1rem; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--primary); }
.sidebar-list a { display: block; padding: 10px 0; border-bottom: 1px solid var(--gray-200); color: var(--text-color); font-size: 0.92rem; }
.sidebar-list a:hover { color: var(--primary); }

@media (max-width: 768px) {
    .content-grid { grid-template-columns: 1fr; }
}

/* ============ EEAT Trust Bar ============ */
.eeat-trust-bar {
    background: var(--white);
    padding: 30px 0;
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
}
.trust-items {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}
.trust-item strong {
    display: block;
    font-size: 1rem;
    color: var(--primary);
    margin-bottom: 6px;
}
.trust-item span {
    font-size: 0.85rem;
    color: var(--gray-500);
    line-height: 1.6;
}
@media (max-width: 768px) {
    .trust-items { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .trust-items { grid-template-columns: 1fr; }
}

/* ============ Video Description ============ */
.video-desc {
    color: var(--gray-500);
    font-size: 0.82rem;
    line-height: 1.5;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ============ Content Update Time ============ */
.content-update-time {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: 20px;
    padding: 8px 16px;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary);
}

/* ============ Footer Disclaimer ============ */
.footer-disclaimer {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.4);
    margin-top: 8px;
}

/* ============ Video Preview (H5 video element) ============ */
.video-thumb .video-preview {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    display: none;
}
.video-card:hover .video-preview {
    display: block;
}
.video-thumb .video-play-btn {
    z-index: 3;
}
.video-thumb .video-duration {
    z-index: 3;
}
.video-thumb img {
    z-index: 2;
}

/* ============ Share Section Enhancement ============ */
.share-section h3 {
    font-size: 1.1rem;
    color: var(--text-color);
}