/* ===================================================
   萝莉岛 - 主样式表
   网站：ting64.cn
   =================================================== */

/* ---------- CSS 变量 ---------- */
:root {
  --primary: #e8001a;
  --primary-dark: #b5001a;
  --secondary: #ff6b35;
  --accent: #ffd700;
  --dark: #0d0d0d;
  --dark-2: #1a1a2e;
  --dark-3: #16213e;
  --text: #333333;
  --text-light: #666666;
  --text-muted: #999999;
  --bg: #f8f9fa;
  --bg-card: #ffffff;
  --border: #e5e5e5;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 32px rgba(232,0,26,0.15);
  --transition: 0.3s ease;
  --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font); }

/* ---------- 通用工具 ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 70px 0; }
.section-alt { background: #f0f2f5; }
.text-center { text-align: center; }
.text-red { color: var(--primary); }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.hidden { display: none !important; }

/* ---------- 章节标题 ---------- */
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 { font-size: 2rem; font-weight: 700; color: var(--dark); margin-bottom: 12px; }
.section-header h2 span { color: var(--primary); }
.section-header p { color: var(--text-light); font-size: 1rem; max-width: 560px; margin: 0 auto; }
.x9ui2c { width: 60px; height: 4px; background: linear-gradient(90deg, var(--primary), var(--secondary)); border-radius: 2px; margin: 16px auto 0; }

/* ---------- 按钮 ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 50px; font-size: 0.95rem; font-weight: 600; transition: var(--transition); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: #fff; box-shadow: 0 4px 16px rgba(232,0,26,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,0,26,0.4); }
.btn-outline { border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: var(--accent); color: var(--dark); }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }

/* ---------- 顶部公告栏 ---------- */
.top-bar { background: var(--dark); color: #ccc; font-size: 0.8rem; padding: 7px 0; }
.top-bar .container { display: flex; justify-content: space-between; align-items: center; }
.top-bar a { color: #ccc; transition: color var(--transition); }
.top-bar a:hover { color: var(--accent); }
.xnlk3e3 { display: flex; gap: 20px; }

/* ---------- 头部导航 ---------- */
.header { background: #fff; box-shadow: 0 2px 12px rgba(0,0,0,0.08); position: sticky; top: 0; z-index: 1000; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo img { height: 44px; width: auto; }
.logo-text { font-size: 1.3rem; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; }
.logo-sub { font-size: 0.7rem; color: var(--text-muted); display: block; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-link { display: flex; align-items: center; gap: 4px; padding: 8px 14px; border-radius: var(--radius); font-size: 0.92rem; font-weight: 500; color: var(--text); transition: var(--transition); }
.nav-link:hover, .nav-link.active { color: var(--primary); background: rgba(232,0,26,0.06); }
.nav-link svg { width: 12px; height: 12px; transition: transform var(--transition); }
.nav-item:hover .nav-link svg { transform: rotate(180deg); }

.dropdown { position: absolute; top: calc(100% + 8px); left: 0; min-width: 180px; background: #fff; border-radius: var(--radius); box-shadow: 0 8px 32px rgba(0,0,0,0.12); opacity: 0; visibility: hidden; transform: translateY(-8px); transition: var(--transition); z-index: 100; }
.nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a { display: block; padding: 10px 18px; font-size: 0.88rem; color: var(--text); transition: var(--transition); }
.dropdown a:hover { color: var(--primary); background: rgba(232,0,26,0.05); }

.header-actions { display: flex; align-items: center; gap: 12px; }
.header-btn-login { padding: 8px 20px; border-radius: 50px; border: 1.5px solid var(--primary); color: var(--primary); font-size: 0.88rem; font-weight: 600; transition: var(--transition); }
.header-btn-login:hover { background: var(--primary); color: #fff; }
.header-btn-reg { padding: 8px 20px; border-radius: 50px; background: var(--primary); color: #fff; font-size: 0.88rem; font-weight: 600; transition: var(--transition); }
.header-btn-reg:hover { background: var(--primary-dark); }

/* 汉堡菜单 */
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 搜索框 ---------- */
.search-bar { background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%); padding: 16px 0; }
.search-inner { display: flex; align-items: center; gap: 12px; max-width: 800px; margin: 0 auto; padding: 0 20px; }
.search-wrap { flex: 1; position: relative; }
.search-input { width: 100%; padding: 12px 50px 12px 20px; border-radius: 50px; border: none; background: rgba(255,255,255,0.1); color: #fff; font-size: 0.95rem; outline: none; transition: var(--transition); }
.search-input::placeholder { color: rgba(255,255,255,0.5); }
.search-input:focus { background: rgba(255,255,255,0.15); box-shadow: 0 0 0 2px rgba(232,0,26,0.4); }
.search-btn { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); background: var(--primary); color: #fff; border: none; border-radius: 50px; padding: 7px 18px; font-size: 0.88rem; cursor: pointer; transition: var(--transition); }
.search-btn:hover { background: var(--primary-dark); }
.xs76p1 { display: flex; gap: 8px; flex-wrap: wrap; }
.x379s3xzu { padding: 5px 12px; border-radius: 50px; background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.7); font-size: 0.78rem; cursor: pointer; transition: var(--transition); }
.x379s3xzu:hover { background: var(--primary); color: #fff; }

/* ---------- 面包屑 ---------- */
.breadcrumb { padding: 14px 0; background: #fff; border-bottom: 1px solid var(--border); }
.breadcrumb ol { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-muted); }
.breadcrumb a { color: var(--text-light); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--primary); font-weight: 500; }

/* ---------- 英雄区 ---------- */
.hero { position: relative; overflow: hidden; min-height: 520px; display: flex; align-items: center; }
.hero-bg { position: absolute; inset: 0; background: linear-gradient(135deg, #0d0d0d 0%, #1a1a2e 50%, #16213e 100%); z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.35; }
.hero-content { position: relative; z-index: 2; padding: 80px 0; }
.xl8ym7qns { display: inline-flex; align-items: center; gap: 8px; background: rgba(232,0,26,0.15); border: 1px solid rgba(232,0,26,0.3); color: var(--primary); padding: 6px 16px; border-radius: 50px; font-size: 0.82rem; font-weight: 600; margin-bottom: 20px; }
.hero h1 { font-size: 3rem; font-weight: 900; color: #fff; line-height: 1.2; margin-bottom: 16px; }
.hero h1 span { color: var(--primary); }
.hero-desc { font-size: 1.1rem; color: rgba(255,255,255,0.75); max-width: 560px; margin-bottom: 32px; line-height: 1.8; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 40px; }
.hero-stat { text-align: center; }
.hero-stat strong { display: block; font-size: 1.8rem; font-weight: 800; color: #fff; }
.hero-stat span { font-size: 0.82rem; color: rgba(255,255,255,0.6); }

/* ---------- 视频卡片 ---------- */
.video-card { background: var(--bg-card); 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-hover); }
.video-thumb { position: relative; aspect-ratio: 16/9; overflow: hidden; background: #111; }
.video-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.video-card:hover .video-thumb img { transform: scale(1.06); }
.play-btn { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; opacity: 0; transition: var(--transition); background: rgba(0,0,0,0.4); }
.video-card:hover .play-btn { opacity: 1; }
.play-icon { width: 56px; height: 56px; background: rgba(232,0,26,0.9); border-radius: 50%; display: flex; align-items: center; justify-content: center; transform: scale(0.8); transition: transform var(--transition); }
.video-card:hover .play-icon { transform: scale(1); }
.play-icon svg { width: 22px; height: 22px; fill: #fff; margin-left: 3px; }
.video-duration { position: absolute; bottom: 10px; right: 10px; background: rgba(0,0,0,0.75); color: #fff; font-size: 0.75rem; padding: 3px 8px; border-radius: 4px; }
.video-tag { position: absolute; top: 10px; left: 10px; background: var(--primary); color: #fff; font-size: 0.72rem; padding: 3px 10px; border-radius: 4px; font-weight: 600; }
.video-info { padding: 16px; }
.video-title { font-size: 0.95rem; font-weight: 600; color: var(--dark); margin-bottom: 8px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.video-meta { display: flex; align-items: center; justify-content: space-between; font-size: 0.78rem; color: var(--text-muted); }
.video-meta-left { display: flex; gap: 12px; }
.video-meta-item { display: flex; align-items: center; gap: 4px; }
.video-meta-item svg { width: 13px; height: 13px; }
.video-author { display: flex; align-items: center; gap: 8px; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--border); }
.video-author img { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; }
.video-author-name { font-size: 0.8rem; color: var(--text-light); }

/* ---------- 功能模块卡片 ---------- */
.feature-card { background: #fff; border-radius: var(--radius-lg); padding: 32px 24px; text-align: center; box-shadow: var(--shadow); transition: var(--transition); border: 1px solid transparent; }
.feature-card:hover { transform: translateY(-4px); border-color: rgba(232,0,26,0.2); box-shadow: var(--shadow-hover); }
.feature-icon { width: 64px; height: 64px; border-radius: 16px; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 1.8rem; }
.feature-icon.red { background: rgba(232,0,26,0.1); }
.feature-icon.orange { background: rgba(255,107,53,0.1); }
.feature-icon.blue { background: rgba(0,123,255,0.1); }
.feature-icon.green { background: rgba(40,167,69,0.1); }
.feature-icon.purple { background: rgba(111,66,193,0.1); }
.feature-icon.gold { background: rgba(255,215,0,0.15); }
.feature-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.feature-card p { font-size: 0.88rem; color: var(--text-light); line-height: 1.7; }

/* ---------- 专家卡片 ---------- */
.expert-card { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); }
.expert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.expert-img { aspect-ratio: 1; overflow: hidden; }
.expert-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.expert-card:hover .expert-img img { transform: scale(1.05); }
.expert-info { padding: 20px; }
.expert-name { font-size: 1.05rem; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
.expert-title { font-size: 0.82rem; color: var(--primary); font-weight: 600; margin-bottom: 10px; }
.expert-desc { font-size: 0.85rem; color: var(--text-light); line-height: 1.7; margin-bottom: 14px; }
.expert-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.expert-tag { padding: 3px 10px; border-radius: 50px; background: rgba(232,0,26,0.08); color: var(--primary); font-size: 0.75rem; font-weight: 500; }
.expert-actions { display: flex; gap: 8px; }
.expert-btn { flex: 1; padding: 8px; border-radius: var(--radius); font-size: 0.82rem; font-weight: 600; text-align: center; transition: var(--transition); }
.expert-btn-primary { background: var(--primary); color: #fff; }
.expert-btn-primary:hover { background: var(--primary-dark); }
.expert-btn-outline { border: 1.5px solid var(--primary); color: var(--primary); }
.expert-btn-outline:hover { background: var(--primary); color: #fff; }

/* ---------- 统计数字 ---------- */
.stats-section { background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%); padding: 60px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-item strong { display: block; font-size: 2.5rem; font-weight: 900; color: var(--primary); margin-bottom: 8px; }
.stat-item span { font-size: 0.9rem; color: rgba(255,255,255,0.65); }

/* ---------- 用户评价 ---------- */
.review-card { background: #fff; border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); transition: var(--transition); }
.review-card:hover { box-shadow: var(--shadow-hover); }
.review-stars { display: flex; gap: 3px; margin-bottom: 12px; }
.star { color: var(--accent); font-size: 1rem; }
.review-text { font-size: 0.9rem; color: var(--text); line-height: 1.8; margin-bottom: 16px; font-style: italic; }
.review-author { display: flex; align-items: center; gap: 12px; }
.review-avatar { width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--secondary)); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 1rem; flex-shrink: 0; }
.review-name { font-size: 0.9rem; font-weight: 600; color: var(--dark); }
.review-date { font-size: 0.78rem; color: var(--text-muted); }

/* ---------- FAQ ---------- */
.faq-item { background: #fff; border-radius: var(--radius); border: 1px solid var(--border); margin-bottom: 12px; overflow: hidden; transition: var(--transition); }
.faq-item.open { border-color: rgba(232,0,26,0.3); box-shadow: 0 4px 16px rgba(232,0,26,0.08); }
.faq-question { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; cursor: pointer; font-size: 0.95rem; font-weight: 600; color: var(--dark); transition: color var(--transition); }
.faq-item.open .faq-question { color: var(--primary); }
.faq-icon { width: 24px; height: 24px; border-radius: 50%; background: var(--bg); display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: var(--transition); }
.faq-item.open .faq-icon { background: var(--primary); transform: rotate(45deg); }
.faq-icon svg { width: 12px; height: 12px; }
.faq-item.open .faq-icon svg { fill: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-answer-inner { padding: 0 24px 18px; font-size: 0.9rem; color: var(--text-light); line-height: 1.8; }
.faq-item.open .faq-answer { max-height: 300px; }

/* ---------- 合作品牌 ---------- */
.partners-section { padding: 50px 0; background: #fff; }
.partners-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; align-items: center; }
.partner-logo { padding: 16px 28px; border-radius: var(--radius); border: 1px solid var(--border); font-size: 0.9rem; font-weight: 700; color: var(--text-light); transition: var(--transition); }
.partner-logo:hover { border-color: var(--primary); color: var(--primary); box-shadow: 0 4px 16px rgba(232,0,26,0.1); }

/* ---------- 联系区 ---------- */
.contact-card { background: #fff; border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow); }
.contact-item { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 20px; }
.contact-icon { width: 44px; height: 44px; border-radius: 12px; background: rgba(232,0,26,0.08); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 1.2rem; }
.contact-label { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 4px; }
.contact-value { font-size: 0.95rem; font-weight: 600; color: var(--dark); }

/* ---------- 底部 ---------- */
.footer { background: var(--dark); color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand .logo-text { color: #fff; font-size: 1.4rem; }
.footer-brand p { font-size: 0.88rem; line-height: 1.8; margin: 16px 0 20px; }
.footer-social { display: flex; gap: 10px; }
.social-btn { width: 36px; height: 36px; border-radius: 8px; background: rgba(255,255,255,0.08); display: flex; align-items: center; justify-content: center; font-size: 0.85rem; transition: var(--transition); }
.social-btn:hover { background: var(--primary); }
.footer-col h4 { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 20px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 0.85rem; color: rgba(255,255,255,0.6); transition: color var(--transition); }
.footer-links a:hover { color: var(--primary); }
.footer-qr { display: flex; gap: 20px; }
.qr-item { text-align: center; }
.qr-item img { width: 90px; height: 90px; border-radius: 8px; border: 2px solid rgba(255,255,255,0.1); margin-bottom: 8px; }
.qr-item span { font-size: 0.75rem; color: rgba(255,255,255,0.5); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.82rem; }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: rgba(255,255,255,0.5); transition: color var(--transition); }
.footer-bottom-links a:hover { color: var(--primary); }

/* ---------- 标签页 ---------- */
.tabs { display: flex; gap: 4px; background: #f0f2f5; border-radius: 50px; padding: 4px; margin-bottom: 32px; width: fit-content; }
.tab-btn { padding: 9px 24px; border-radius: 50px; font-size: 0.88rem; font-weight: 600; color: var(--text-light); transition: var(--transition); cursor: pointer; }
.tab-btn.active { background: #fff; color: var(--primary); box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ---------- 加入社区 How-To ---------- */
.howto-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.howto-steps::before { content: ''; position: absolute; top: 32px; left: 10%; right: 10%; height: 2px; background: linear-gradient(90deg, var(--primary), var(--secondary)); z-index: 0; }
.step-card { background: #fff; border-radius: var(--radius-lg); padding: 28px 20px; text-align: center; box-shadow: var(--shadow); position: relative; z-index: 1; }
.step-num { width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--secondary)); color: #fff; font-size: 1.3rem; font-weight: 800; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.step-card h4 { font-size: 0.95rem; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.step-card p { font-size: 0.82rem; color: var(--text-light); line-height: 1.7; }

/* ---------- 弹幕效果 ---------- */
.danmu-wrap { background: linear-gradient(135deg, var(--dark-2), var(--dark-3)); padding: 30px 0; overflow: hidden; }
.xvywn2o9 { display: flex; gap: 20px; animation: danmu-scroll 30s linear infinite; white-space: nowrap; }
.xvywn2o9:hover { animation-play-state: paused; }
.x5pv6yqj { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.08); border-radius: 50px; padding: 8px 18px; color: rgba(255,255,255,0.8); font-size: 0.85rem; flex-shrink: 0; }
.danmu-avatar { width: 24px; height: 24px; border-radius: 50%; background: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 0.7rem; color: #fff; font-weight: 700; }
@keyframes danmu-scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ---------- 分享按钮 ---------- */
.share-section { background: linear-gradient(135deg, #fff5f5, #fff); padding: 40px 0; }
.share-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.share-btn { display: flex; align-items: center; gap: 8px; padding: 10px 22px; border-radius: 50px; font-size: 0.88rem; font-weight: 600; transition: var(--transition); }
.share-wechat { background: #07c160; color: #fff; }
.share-weibo { background: #e6162d; color: #fff; }
.share-douyin { background: #000; color: #fff; }
.share-bilibili { background: #00a1d6; color: #fff; }
.share-btn:hover { transform: translateY(-2px); filter: brightness(1.1); }

/* ---------- 内页 Banner ---------- */
.page-hero { background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%); padding: 60px 0; text-align: center; }
.page-hero h1 { font-size: 2.2rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
.page-hero h1 span { color: var(--primary); }
.page-hero p { color: rgba(255,255,255,0.7); font-size: 1rem; max-width: 500px; margin: 0 auto; }

/* ---------- 滚动到顶部 ---------- */
.xanpad7 { position: fixed; bottom: 32px; right: 32px; width: 44px; height: 44px; background: var(--primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(232,0,26,0.4); opacity: 0; visibility: hidden; transition: var(--transition); z-index: 999; cursor: pointer; }
.xanpad7.show { opacity: 1; visibility: visible; }
.xanpad7:hover { background: var(--primary-dark); transform: translateY(-2px); }
.xanpad7 svg { width: 18px; height: 18px; }

/* ---------- 懒加载占位 ---------- */
img[data-src] { background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .howto-steps { grid-template-columns: repeat(2, 1fr); }
  .howto-steps::before { display: none; }
}
@media (max-width: 768px) {
  .nav, .header-actions { display: none; }
  .hamburger { display: flex; }
  .nav.mobile-open { display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: #fff; box-shadow: 0 8px 24px rgba(0,0,0,0.12); padding: 16px; z-index: 999; }
  .header-actions.mobile-open { display: flex; padding: 0 16px 16px; position: absolute; top: calc(68px + var(--nav-height, 0px)); left: 0; right: 0; background: #fff; z-index: 998; }
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 20px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .howto-steps { grid-template-columns: 1fr; }
  .top-bar .container { flex-direction: column; gap: 6px; text-align: center; }
  .section-header h2 { font-size: 1.6rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .xs76p1 { display: none; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 1.6rem; }
  .grid-4 { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}

/* ---------- 图片画廊 ---------- */
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.gallery-item { position: relative; aspect-ratio: 1; overflow: hidden; border-radius: var(--radius); cursor: pointer; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.gallery-item:hover img { transform: scale(1.08); }
.gallery-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.4); opacity: 0; transition: var(--transition); display: flex; align-items: center; justify-content: center; }
.gallery-item:hover .gallery-overlay { opacity: 1; }

/* ---------- 资质卡片 ---------- */
.cert-card { background: #fff; border-radius: var(--radius-lg); padding: 28px 20px; text-align: center; box-shadow: var(--shadow); transition: var(--transition); border: 1px solid transparent; }
.cert-card:hover { border-color: rgba(232,0,26,0.2); transform: translateY(-4px); box-shadow: var(--shadow-hover); }

/* ---------- 时间轴 ---------- */
.timeline-item { display: flex; gap: 24px; margin-bottom: 28px; align-items: flex-start; }
.timeline-year { width: 80px; text-align: center; flex-shrink: 0; }
.timeline-year div, .timeline-item > .timeline-year { background: var(--primary); color: #fff; border-radius: 8px; padding: 8px; font-weight: 800; font-size: 0.95rem; }
.timeline-content { flex: 1; padding-bottom: 28px; border-bottom: 1px solid var(--border); }
.timeline-content h4 { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.timeline-content p { font-size: 0.88rem; color: var(--text-light); line-height: 1.8; }

/* ---------- 亲密教育区块 ---------- */
.edu-banner { background: #fff; border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow); }
.edu-expert { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }

/* ---------- 关于我们布局 ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }

/* ---------- 统计行 ---------- */
.stats-row { display: flex; gap: 20px; flex-wrap: wrap; }
.stat-box { text-align: center; padding: 16px 24px; background: #f8f9fa; border-radius: 12px; }
.stat-num { font-size: 1.8rem; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 0.82rem; color: var(--text-muted); }

/* ---------- 分页 ---------- */
.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 48px; flex-wrap: wrap; }
.page-btn { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 40px; padding: 0 12px; border-radius: 8px; border: 1.5px solid var(--border); background: #fff; color: var(--text-light); font-weight: 600; font-size: 0.88rem; transition: var(--transition); cursor: pointer; }
.page-btn:hover, .page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-btn.page-next { padding: 0 16px; }
.page-ellipsis { color: var(--text-muted); padding: 0 4px; }

/* ---------- 分类导航 ---------- */
.cat-nav { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; }
.cat-btn { padding: 8px 18px; border-radius: 50px; border: 1.5px solid var(--border); background: #fff; color: var(--text-light); font-size: 0.88rem; font-weight: 500; transition: var(--transition); cursor: pointer; }
.cat-btn:hover, .cat-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ---------- 作者头像小 ---------- */
.author-avatar-sm { width: 28px; height: 28px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--secondary)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 0.7rem; font-weight: 700; flex-shrink: 0; }

/* ---------- 底部标签云 ---------- */
.xi7r2w7l { display: flex; flex-wrap: wrap; gap: 8px; padding: 24px 0; border-top: 1px solid rgba(255,255,255,0.06); border-bottom: 1px solid rgba(255,255,255,0.06); margin-bottom: 24px; }
.xi7r2w7l span { padding: 4px 12px; border-radius: 50px; background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.5); font-size: 0.78rem; transition: var(--transition); cursor: pointer; }
.xi7r2w7l span:hover { background: var(--primary); color: #fff; }

/* ---------- 底部联系信息 ---------- */
.footer-contact-info { margin-top: 16px; font-size: 0.82rem; color: rgba(255,255,255,0.5); line-height: 1.9; }

/* ---------- 直播卡片 ---------- */
.live-card .video-tag { background: #ff4444; }
.live-tag { background: #ff4444 !important; }
.live-category { display: inline-block; font-size: 0.75rem; font-weight: 600; color: var(--primary); background: rgba(232,0,26,0.08); padding: 2px 8px; border-radius: 4px; margin-bottom: 6px; }

/* ---------- 面包屑导航（新版） ---------- */
.breadcrumb-nav { padding: 12px 0; background: #fff; border-bottom: 1px solid var(--border); }
.breadcrumb-nav .container { display: flex; }
.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; color: var(--text-muted); }
.breadcrumb a { color: var(--text-light); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--primary); }
.bc-sep { color: var(--border); }

/* ---------- 专家资质文字 ---------- */
.expert-cert-text { font-size: 0.78rem; color: var(--primary); margin-bottom: 10px; line-height: 1.6; }

/* ---------- 移动端导航 ---------- */
.mobile-nav { display: none; background: #fff; border-top: 1px solid var(--border); padding: 16px 20px; }
.mobile-nav.open { display: block; }
.mobile-nav nav { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav a { display: block; padding: 10px 16px; border-radius: var(--radius); font-size: 0.92rem; color: var(--text); transition: var(--transition); }
.mobile-nav a:hover { background: rgba(232,0,26,0.06); color: var(--primary); }

/* ---------- 搜索栏（移动端） ---------- */
.search-bar .search-inner { flex-direction: column; align-items: stretch; }

/* ---------- 响应式补充 ---------- */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 24px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-row { gap: 12px; }
  .stat-box { padding: 12px 16px; }
  .cat-nav { gap: 8px; }
  .cat-btn { padding: 6px 14px; font-size: 0.82rem; }
  .search-bar .search-inner { flex-direction: column; gap: 10px; }
  .xs76p1 { display: flex; flex-wrap: wrap; }
  .timeline-item { gap: 16px; }
  .timeline-year { width: 64px; }
  .edu-expert { flex-direction: column; text-align: center; }
  .xi7r2w7l { display: none; }
}
@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .pagination { gap: 6px; }
  .page-btn { min-width: 36px; height: 36px; font-size: 0.82rem; }
  .stats-row { justify-content: center; }
}