/* 猎奇视频社区 - 主样式文件 | djkoq.cn */
:root {
    --primary: #1a6b3a;
    --primary-dark: #0f4525;
    --primary-light: #2d9c56;
    --gold: #c9a227;
    --gold-light: #e8c84a;
    --bg-dark: #0d1f14;
    --bg-card: #f8fdf9;
    --text-main: #1a2e1e;
    --text-sub: #4a6a52;
    --text-light: #7a9a82;
    --border: #d4e8d8;
    --white: #ffffff;
    --shadow: 0 4px 20px rgba(26,107,58,0.12);
    --shadow-lg: 0 8px 40px rgba(26,107,58,0.18);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
}

/* 重置与基础 */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    color: var(--text-main);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--gold); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* 干扰标签隐藏 */
.noise-wrap { display: none !important; visibility: hidden !important; position: absolute !important; left: -9999px !important; top: -9999px !important; width: 0 !important; height: 0 !important; overflow: hidden !important; }

/* 干扰标签强制隐藏 - 防止任何渗漏 */
[aria-hidden="true"] {
    display: none !important;
    visibility: hidden !important;
    position: absolute !important;
    left: -99999px !important;
    top: -99999px !important;
    width: 0 !important;
    height: 0 !important;
    overflow: hidden !important;
    pointer-events: none !important;
    font-size: 0 !important;
    line-height: 0 !important;
    opacity: 0 !important;
    clip: rect(0,0,0,0) !important;
    max-height: 0 !important;
    max-width: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
}

/* 容器 */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.container-wide { max-width: 1400px; margin: 0 auto; padding: 0 20px; }

/* ===== 顶部导航 ===== */
#site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(13,31,20,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(201,162,39,0.3);
    transition: var(--transition);
}
#site-header.scrolled {
    background: rgba(13,31,20,0.98);
    box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    gap: 20px;
}
.logo-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-wrap img {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
}
.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 2px;
}
.logo-text span { color: var(--gold); }

/* 主导航 */
#main-nav ul {
    display: flex;
    align-items: center;
    gap: 4px;
}
#main-nav ul li a {
    color: rgba(255,255,255,0.85);
    font-size: 0.92rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 6px;
    transition: var(--transition);
    white-space: nowrap;
}
#main-nav ul li a:hover,
#main-nav ul li a.active {
    color: var(--gold);
    background: rgba(201,162,39,0.12);
}

/* 搜索框 */
.header-search {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 24px;
    padding: 6px 16px;
    gap: 8px;
    min-width: 200px;
}
.header-search input {
    background: none;
    border: none;
    outline: none;
    color: var(--white);
    font-size: 0.88rem;
    width: 100%;
}
.header-search input::placeholder { color: rgba(255,255,255,0.5); }
.header-search button {
    background: none;
    border: none;
    cursor: pointer;
    color: rgba(255,255,255,0.7);
    font-size: 1rem;
    padding: 0;
    transition: var(--transition);
}
.header-search button:hover { color: var(--gold); }

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}
.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== 搜索条（导航下方） ===== */
.search-bar-section {
    background: #1a3a24;
    padding: 12px 0;
    border-bottom: 1px solid rgba(201,162,39,0.2);
    margin-top: 70px;
}
.search-bar-inner {
    display: flex;
    align-items: center;
    gap: 12px;
    max-width: 700px;
    margin: 0 auto;
    padding: 0 20px;
}
.search-bar-inner input {
    flex: 1;
    padding: 10px 20px;
    border: 2px solid var(--primary-light);
    border-radius: 30px;
    font-size: 0.95rem;
    outline: none;
    background: rgba(255,255,255,0.95);
    color: var(--text-main);
    transition: var(--transition);
}
.search-bar-inner input:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(201,162,39,0.15); }
.search-bar-inner button {
    padding: 10px 28px;
    background: var(--gold);
    color: var(--white);
    border: none;
    border-radius: 30px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}
.search-bar-inner button:hover { background: var(--gold-light); transform: translateY(-1px); }

/* ===== Banner ===== */
#banner {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.banner-bg {
    position: absolute;
    inset: 0;
    background-image: url('../images/banner.jpg');
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    transition: transform 8s ease;
}
#banner:hover .banner-bg { transform: scale(1); }
.banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(13,31,20,0.75) 0%, rgba(26,107,58,0.45) 50%, rgba(13,31,20,0.6) 100%);
}
.banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    padding: 0 20px;
    max-width: 900px;
}
.banner-badge {
    display: inline-block;
    background: rgba(201,162,39,0.2);
    border: 1px solid var(--gold);
    color: var(--gold);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 6px 18px;
    border-radius: 20px;
    letter-spacing: 3px;
    margin-bottom: 20px;
    text-transform: uppercase;
}
.banner-content h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 20px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.4);
}
.banner-content h1 .brand { color: var(--gold); }
.banner-content p {
    font-size: clamp(1rem, 2vw, 1.3rem);
    opacity: 0.9;
    margin-bottom: 36px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}
.banner-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}
.btn-primary {
    padding: 14px 36px;
    background: var(--gold);
    color: var(--white);
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
}
.btn-primary:hover { background: var(--gold-light); transform: translateY(-3px); box-shadow: 0 8px 25px rgba(201,162,39,0.4); color: var(--white); }
.btn-outline {
    padding: 14px 36px;
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.7);
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
}
.btn-outline:hover { background: rgba(255,255,255,0.15); border-color: var(--white); transform: translateY(-3px); color: var(--white); }
.banner-stats {
    position: absolute;
    bottom: 40px;
    left: 0; right: 0;
    display: flex;
    justify-content: center;
    gap: 60px;
    z-index: 2;
}
.stat-item { text-align: center; color: var(--white); }
.stat-num { font-size: 2rem; font-weight: 800; color: var(--gold); display: block; }
.stat-label { font-size: 0.82rem; opacity: 0.8; letter-spacing: 1px; }

/* ===== 通用区块 ===== */
.section { padding: 80px 0; }
.section-alt { background: #f4faf6; }
.section-dark { background: var(--bg-dark); color: var(--white); }
.section-header { text-align: center; margin-bottom: 50px; }
.section-tag {
    display: inline-block;
    background: rgba(26,107,58,0.1);
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 5px 16px;
    border-radius: 20px;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.section-dark .section-tag { background: rgba(201,162,39,0.15); color: var(--gold); }
.section-header h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-main);
    margin-bottom: 14px;
}
.section-dark .section-header h2 { color: var(--white); }
.section-header p {
    font-size: 1.05rem;
    color: var(--text-sub);
    max-width: 600px;
    margin: 0 auto;
}
.section-dark .section-header p { color: rgba(255,255,255,0.7); }
.brand-accent { color: var(--primary); }
.section-dark .brand-accent { color: var(--gold); }

/* ===== 视频卡片 ===== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.video-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.video-thumb {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: #1a2e1e;
}
.video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.08); }
.play-btn {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.3);
    opacity: 0;
    transition: var(--transition);
}
.video-card:hover .play-btn { opacity: 1; }
.play-icon {
    width: 60px;
    height: 60px;
    background: rgba(255,255,255,0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.8);
    transition: var(--transition);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon::after {
    content: '';
    border-left: 20px solid var(--primary);
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 4px;
}
.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.75);
    color: var(--white);
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: 4px;
}
.video-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--primary);
    color: var(--white);
    font-size: 0.72rem;
    padding: 3px 10px;
    border-radius: 4px;
    font-weight: 600;
}
.video-info { padding: 16px; }
.video-info h3 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
    color: var(--text-main);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.video-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.78rem;
    color: var(--text-light);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-stats {
    display: flex;
    gap: 16px;
    margin-top: 10px;
    font-size: 0.78rem;
    color: var(--text-sub);
}
.video-stats span { display: flex; align-items: center; gap: 4px; }

/* ===== 专家卡片 ===== */
.experts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}
.expert-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}
.expert-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.expert-photo {
    position: relative;
    height: 220px;
    overflow: hidden;
}
.expert-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
}
.expert-badge {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    font-size: 0.72rem;
    padding: 4px 14px;
    border-radius: 20px;
    white-space: nowrap;
    font-weight: 600;
}
.expert-body { padding: 20px; }
.expert-body h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 4px; }
.expert-role { font-size: 0.82rem; color: var(--primary); font-weight: 600; margin-bottom: 10px; }
.expert-desc { font-size: 0.85rem; color: var(--text-sub); line-height: 1.6; margin-bottom: 14px; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-bottom: 14px; }
.award-tag {
    background: rgba(201,162,39,0.1);
    color: var(--gold);
    font-size: 0.72rem;
    padding: 3px 10px;
    border-radius: 4px;
    border: 1px solid rgba(201,162,39,0.3);
}
.expert-btns { display: flex; gap: 10px; justify-content: center; }
.btn-sm {
    padding: 7px 16px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}
.btn-sm-primary { background: var(--primary); color: var(--white); }
.btn-sm-primary:hover { background: var(--primary-dark); color: var(--white); }
.btn-sm-outline { background: transparent; border: 1.5px solid var(--primary); color: var(--primary); }
.btn-sm-outline:hover { background: var(--primary); color: var(--white); }

/* ===== AI赋能模块 ===== */
.ai-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.ai-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(201,162,39,0.2);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
}
.ai-card:hover {
    background: rgba(201,162,39,0.08);
    border-color: var(--gold);
    transform: translateY(-4px);
}
.ai-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
}
.ai-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--white); margin-bottom: 12px; }
.ai-card p { font-size: 0.88rem; color: rgba(255,255,255,0.65); line-height: 1.7; }

/* ===== 社区功能 ===== */
.community-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 32px;
    flex-wrap: wrap;
    justify-content: center;
}
.tab-btn {
    padding: 9px 22px;
    border-radius: 24px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid var(--border);
    background: var(--white);
    color: var(--text-sub);
    transition: var(--transition);
}
.tab-btn.active, .tab-btn:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* ===== 合作品牌 ===== */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    align-items: center;
}
.partner-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
    font-weight: 700;
    color: var(--text-sub);
    font-size: 0.9rem;
}
.partner-item:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow); }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary-light); }
.faq-question {
    padding: 18px 24px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}
.faq-question::after {
    content: '+';
    font-size: 1.4rem;
    color: var(--primary);
    flex-shrink: 0;
    transition: var(--transition);
}
.faq-item.open .faq-question::after { content: '−'; }
.faq-answer {
    display: none;
    padding: 0 24px 18px;
    font-size: 0.92rem;
    color: var(--text-sub);
    line-height: 1.8;
}
.faq-item.open .faq-answer { display: block; }

/* ===== 用户评价 ===== */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.review-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary);
}
.review-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.review-stars { color: var(--gold); font-size: 1rem; margin-bottom: 12px; letter-spacing: 2px; }
.review-text { font-size: 0.92rem; color: var(--text-sub); line-height: 1.8; margin-bottom: 16px; font-style: italic; }
.review-author { display: flex; align-items: center; gap: 12px; }
.author-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}
.author-info .name { font-weight: 700; font-size: 0.9rem; }
.author-info .meta { font-size: 0.78rem; color: var(--text-light); }

/* ===== 联系我们 ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}
.contact-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--border);
}
.contact-card h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 20px; color: var(--primary); }
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 16px;
    font-size: 0.92rem;
}
.contact-icon {
    width: 36px;
    height: 36px;
    background: rgba(26,107,58,0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}
.contact-item strong { display: block; font-size: 0.82rem; color: var(--text-light); margin-bottom: 2px; }
.qr-row { display: flex; gap: 24px; margin-top: 20px; }
.qr-item { text-align: center; }
.qr-item img { width: 100px; height: 100px; border-radius: 8px; border: 2px solid var(--border); }
.qr-item p { font-size: 0.78rem; color: var(--text-sub); margin-top: 6px; }

/* ===== 社交分享 ===== */
.share-bar {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 16px;
}
.share-btn {
    padding: 9px 20px;
    border-radius: 24px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}
.share-wechat { background: #07c160; color: var(--white); }
.share-weibo { background: #e6162d; color: var(--white); }
.share-douyin { background: #010101; color: var(--white); }
.share-bilibili { background: #00a1d6; color: var(--white); }
.share-btn:hover { opacity: 0.85; transform: translateY(-2px); }

/* ===== 加入社区指南 ===== */
.join-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    counter-reset: steps;
}
.step-item {
    text-align: center;
    padding: 28px 20px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    position: relative;
    transition: var(--transition);
}
.step-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.step-num {
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 800;
    margin: 0 auto 16px;
}
.step-item h4 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.step-item p { font-size: 0.85rem; color: var(--text-sub); line-height: 1.6; }

/* ===== 页脚 ===== */
#site-footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.75);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand .logo-wrap { margin-bottom: 16px; }
.footer-brand p { font-size: 0.88rem; line-height: 1.8; color: rgba(255,255,255,0.6); max-width: 280px; }
.footer-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(201,162,39,0.3);
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 0.85rem; color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--gold); padding-left: 4px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.45);
}
.footer-bottom a { color: rgba(255,255,255,0.45); }
.footer-bottom a:hover { color: var(--gold); }

/* ===== 面包屑 ===== */
.breadcrumb {
    padding: 12px 0;
    font-size: 0.85rem;
    color: var(--text-light);
}
.breadcrumb a { color: var(--primary); }
.breadcrumb span { margin: 0 6px; }

/* ===== 内页Hero ===== */
.page-hero {
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-dark) 100%);
    padding: 120px 0 60px;
    text-align: center;
    color: var(--white);
}
.page-hero h1 { font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 900; margin-bottom: 14px; }
.page-hero p { font-size: 1.05rem; opacity: 0.8; max-width: 600px; margin: 0 auto; }

/* ===== 滚动动画 ===== */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .ai-grid { grid-template-columns: repeat(2, 1fr); }
    .partners-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .join-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    #main-nav { display: none; position: absolute; top: 70px; left: 0; right: 0; background: rgba(13,31,20,0.98); padding: 16px; }
    #main-nav.open { display: block; }
    #main-nav ul { flex-direction: column; gap: 4px; }
    .hamburger { display: flex; }
    .header-search { display: none; }
    .banner-stats { gap: 30px; bottom: 20px; }
    .stat-num { font-size: 1.5rem; }
    .ai-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .partners-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; }
    .join-steps { grid-template-columns: 1fr 1fr; }
    .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
    .experts-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
}
@media (max-width: 480px) {
    .banner-stats { flex-direction: row; gap: 20px; }
    .join-steps { grid-template-columns: 1fr; }
    .partners-grid { grid-template-columns: repeat(2, 1fr); }
    .banner-btns { flex-direction: column; align-items: center; }
}

/* ===== 视频模态框 ===== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal-box {
    background: #000;
    border-radius: var(--radius-lg);
    overflow: hidden;
    max-width: 800px;
    width: 90%;
    position: relative;
}
.modal-close {
    position: absolute;
    top: 12px;
    right: 16px;
    color: var(--white);
    font-size: 1.8rem;
    cursor: pointer;
    z-index: 1;
    line-height: 1;
    background: rgba(0,0,0,0.5);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-video { width: 100%; aspect-ratio: 16/9; background: #111; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.5); font-size: 1rem; }

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #f0f4f1; }
::-webkit-scrollbar-thumb { background: var(--primary-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ===== 加载动画 ===== */
.skeleton {
    background: linear-gradient(90deg, #f0f4f1 25%, #e0ece3 50%, #f0f4f1 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius);
}
@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ===== 标签云 ===== */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
    background: rgba(26,107,58,0.08);
    color: var(--primary);
    border: 1px solid rgba(26,107,58,0.2);
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
}
.tag:hover { background: var(--primary); color: var(--white); }

/* ===== 统计数字 ===== */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}
.stat-box {
    padding: 28px 20px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border-top: 4px solid var(--primary);
}
.stat-box .num { font-size: 2.5rem; font-weight: 900; color: var(--primary); display: block; }
.stat-box .label { font-size: 0.88rem; color: var(--text-sub); margin-top: 6px; }

/* ===== 图文介绍 ===== */
.intro-flex { display: flex; gap: 60px; align-items: center; }
.intro-flex.reverse { flex-direction: row-reverse; }
.intro-img { flex: 1; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.intro-img img { width: 100%; height: 360px; object-fit: cover; }
.intro-text { flex: 1; }
.intro-text h2 { font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
.intro-text p { font-size: 0.95rem; color: var(--text-sub); line-height: 1.9; margin-bottom: 14px; }
.check-list { margin-top: 16px; }
.check-list li {
    padding: 8px 0;
    font-size: 0.92rem;
    color: var(--text-sub);
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border);
}
.check-list li::before { content: '✓'; color: var(--primary); font-weight: 700; flex-shrink: 0; }
@media (max-width: 768px) {
    .intro-flex, .intro-flex.reverse { flex-direction: column; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
}

/* ===== 搜索条表单 ===== */
.search-form { display: flex; align-items: center; gap: 8px; }
.search-bar-inner .search-form { display: contents; }
.search-bar-inner input,
.search-bar-inner button { display: block; }

/* ===== 页脚补充 ===== */
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    color: var(--white);
    font-size: 1.3rem;
    font-weight: 800;
}
.footer-logo img { width: 36px; height: 36px; border-radius: 50%; }
.footer-social { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.footer-social a {
    padding: 6px 14px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.7);
    border-radius: 20px;
    font-size: 0.8rem;
    transition: var(--transition);
}
.footer-social a:hover { background: var(--gold); color: var(--white); border-color: var(--gold); }
.footer-qr { margin-top: 20px; text-align: center; }
.footer-qr img { width: 90px; height: 90px; border-radius: 8px; margin: 0 auto 6px; border: 2px solid rgba(255,255,255,0.15); }
.footer-qr p { font-size: 0.75rem; color: rgba(255,255,255,0.5); }
.footer-bottom-inner { text-align: center; }
.footer-bottom-inner p { margin-bottom: 6px; }
.update-time { color: rgba(255,255,255,0.35); font-size: 0.78rem; }

/* ===== 面包屑（内页） ===== */
.page-hero .breadcrumb { color: rgba(255,255,255,0.6); padding-bottom: 16px; }
.page-hero .breadcrumb a { color: rgba(255,255,255,0.8); }
.page-hero .breadcrumb a:hover { color: var(--gold); }
.page-hero .breadcrumb span { color: rgba(255,255,255,0.4); }

/* ===== 响应式补充 ===== */
@media (max-width: 768px) {
    .contact-grid { grid-template-columns: 1fr; }
    .ai-grid { grid-template-columns: 1fr; }
    .experts-grid { grid-template-columns: 1fr; }
    .join-steps { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: 1fr 1fr; }
    .partners-grid { grid-template-columns: repeat(2, 1fr); }
    .intro-flex { flex-direction: column; gap: 30px; }
    .intro-img img { height: 240px; }
}
@media (max-width: 480px) {
    .join-steps { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: 1fr 1fr; }
    .video-grid { grid-template-columns: 1fr; }
    .experts-grid { grid-template-columns: 1fr; }
    .banner-stats { flex-wrap: wrap; gap: 16px; }
}

/* ===== 干扰标签强制隐藏（所有动态生成的干扰div） ===== */
body > div[id],
body > div[class] {
    /* 只对直接子元素，不影响正常布局 */
}
/* 通过style属性内联隐藏，已在PHP函数中处理 */