/* ===================================================
   校花传媒 - 主样式文件
   vw7gh1p.cn
   =================================================== */

/* ---- CSS变量 ---- */
:root {
  --pink:        #D4356A;
  --pink-light:  #FF6B9D;
  --pink-pale:   #F7F0F4;
  --purple:      #7C3AED;
  --dark:        #1A1A2E;
  --dark2:       #2D1B4E;
  --gray:        #6B6B80;
  --gray-light:  #E8E8F0;
  --white:       #fff;
  --radius:      14px;
  --shadow:      0 4px 20px rgba(212,53,106,0.10);
  --shadow-lg:   0 12px 40px rgba(212,53,106,0.18);
  --font:        'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  --transition:  0.28s cubic-bezier(.4,0,.2,1);
}

/* ---- Reset ---- */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; font-size:16px; }
body { font-family:var(--font); color:var(--dark); background:#FAFAFA; line-height:1.6; -webkit-font-smoothing:antialiased; }
img  { max-width:100%; height:auto; display:block; }
a    { color:inherit; text-decoration:none; transition:color var(--transition); }
a:hover { color:var(--pink); }
ul,ol { list-style:none; }
button  { cursor:pointer; font-family:var(--font); }
input,select,textarea { font-family:var(--font); }

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

/* ---- 顶部公告栏 ---- */
.top-bar { background:var(--dark); color:rgba(255,255,255,0.85); font-size:0.78rem; padding:7px 0; overflow:hidden; }
.top-bar .container { display:flex; align-items:center; gap:18px; flex-wrap:wrap; }
.top-bar a { color:rgba(255,255,255,0.7); transition:color var(--transition); }
.top-bar a:hover { color:var(--pink-light); }
.top-bar-right { margin-left:auto; }

/* ---- 导航栏 ---- */
.navbar { background:var(--white); border-bottom:1px solid var(--gray-light); position:sticky; top:0; z-index:1000; box-shadow:0 2px 12px rgba(26,26,46,0.07); }
.navbar-inner { display:flex; align-items:center; gap:20px; padding:12px 0; flex-wrap:nowrap; }
.navbar-logo { display:flex; align-items:center; gap:10px; flex-shrink:0; }
.navbar-logo img { width:44px; height:44px; border-radius:10px; object-fit:cover; }
.brand-name { display:block; font-size:1.15rem; font-weight:800; background:linear-gradient(135deg,var(--pink),var(--purple)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; line-height:1.2; }
.brand-sub  { display:block; font-size:0.68rem; color:var(--gray); line-height:1.2; }
.navbar-nav { display:flex; align-items:center; gap:4px; flex:1; justify-content:center; }
.navbar-nav a { font-size:0.88rem; font-weight:500; color:var(--dark); padding:7px 12px; border-radius:8px; transition:all var(--transition); white-space:nowrap; }
.navbar-nav a:hover, .navbar-nav a.active { color:var(--pink); background:rgba(212,53,106,0.08); }
.navbar-search { display:flex; align-items:center; border:1.5px solid var(--gray-light); border-radius:24px; overflow:hidden; flex-shrink:0; transition:border-color var(--transition); }
.navbar-search:focus-within { border-color:var(--pink); }
.navbar-search input  { border:none; outline:none; padding:7px 14px; font-size:0.83rem; width:160px; background:transparent; }
.navbar-search button { background:var(--pink); border:none; color:#fff; padding:7px 12px; display:flex; align-items:center; justify-content:center; transition:background var(--transition); }
.navbar-search button:hover { background:var(--pink-light); }
.navbar-toggle { display:none; flex-direction:column; gap:5px; background:none; border:none; padding:6px; }
.navbar-toggle span { display:block; width:22px; height:2px; background:var(--dark); border-radius:2px; transition:all var(--transition); }

/* ---- 按钮 ---- */
.btn { display:inline-flex; align-items:center; gap:6px; padding:11px 24px; border-radius:28px; font-size:0.9rem; font-weight:600; border:2px solid transparent; transition:all var(--transition); white-space:nowrap; cursor:pointer; }
.btn-primary { background:linear-gradient(135deg,var(--pink),var(--pink-light)); color:#fff; border-color:transparent; box-shadow:0 4px 14px rgba(212,53,106,0.3); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(212,53,106,0.4); color:#fff; }
.btn-outline { background:transparent; color:#fff; border-color:rgba(255,255,255,0.6); }
.btn-outline:hover { background:rgba(255,255,255,0.15); color:#fff; }
.btn-outline-dark { background:transparent; color:var(--dark); border-color:var(--gray-light); }
.btn-outline-dark:hover { border-color:var(--pink); color:var(--pink); }
.btn-sm { padding:7px 16px; font-size:0.82rem; border-radius:20px; }

/* ---- Hero 轮播 ---- */
.hero { position:relative; overflow:hidden; height:580px; }
.hero-slider { display:flex; height:100%; transition:transform 0.6s cubic-bezier(.4,0,.2,1); }
.hero-slide { min-width:100%; position:relative; overflow:hidden; }
.hero-slide img { width:100%; height:100%; object-fit:cover; }
.hero-overlay { position:absolute; inset:0; background:linear-gradient(135deg,rgba(26,26,46,0.75) 0%,rgba(212,53,106,0.35) 100%); }
.hero-content { position:absolute; inset:0; display:flex; flex-direction:column; justify-content:center; padding:0 8%; max-width:700px; }
.hero-badge { display:inline-block; background:rgba(212,53,106,0.85); color:#fff; font-size:0.78rem; padding:5px 14px; border-radius:20px; margin-bottom:16px; font-weight:600; letter-spacing:0.5px; width:fit-content; }
.hero-content h1 { font-size:3rem; font-weight:900; color:#fff; line-height:1.2; margin-bottom:14px; text-shadow:0 2px 12px rgba(0,0,0,0.3); }
.hero-content p  { font-size:1.05rem; color:rgba(255,255,255,0.88); margin-bottom:24px; line-height:1.7; max-width:520px; }
.hero-btns { display:flex; gap:14px; flex-wrap:wrap; }
.hero-arrow { position:absolute; top:50%; transform:translateY(-50%); background:rgba(255,255,255,0.2); border:none; color:#fff; width:48px; height:48px; border-radius:50%; font-size:1.6rem; display:flex; align-items:center; justify-content:center; transition:all var(--transition); backdrop-filter:blur(4px); }
.hero-arrow:hover { background:rgba(212,53,106,0.8); }
.hero-arrow.prev { left:20px; }
.hero-arrow.next { right:20px; }
.hero-dots { position:absolute; bottom:22px; left:50%; transform:translateX(-50%); display:flex; gap:8px; }
.hero-dot { width:8px; height:8px; border-radius:50%; background:rgba(255,255,255,0.5); border:none; transition:all var(--transition); cursor:pointer; }
.hero-dot.active { background:#fff; width:24px; border-radius:4px; }

/* ---- 统计条 ---- */
.stats-bar { background:linear-gradient(135deg,var(--dark),var(--dark2)); padding:28px 0; }
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.stat-item { text-align:center; }
.stat-item .num { font-size:1.9rem; font-weight:900; background:linear-gradient(135deg,#FF6B9D,#F5A7C0); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.stat-item .label { font-size:0.82rem; color:rgba(255,255,255,0.65); margin-top:4px; }

/* ---- 通用区块 ---- */
.section { padding:70px 0; }
.section-alt { background:var(--pink-pale); }
.section-title { text-align:center; margin-bottom:48px; }
.section-title h2 { font-size:2rem; font-weight:800; color:var(--dark); margin-bottom:12px; }
.section-title p  { font-size:0.95rem; color:var(--gray); max-width:600px; margin:0 auto; line-height:1.7; }

/* ---- 功能卡片 ---- */
.feature-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.feature-card { background:var(--white); border-radius:var(--radius); padding:28px; box-shadow:var(--shadow); border:1px solid var(--gray-light); transition:all var(--transition); }
.feature-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-lg); border-color:rgba(212,53,106,0.2); }
.feature-icon { font-size:2.2rem; margin-bottom:14px; }
.feature-card h3 { font-size:1.05rem; font-weight:700; color:var(--dark); margin-bottom:10px; }
.feature-card p  { font-size:0.85rem; color:var(--gray); line-height:1.7; }

/* ---- 视频卡片 ---- */
.video-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.video-card { background:var(--white); border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow); border:1px solid var(--gray-light); transition:all var(--transition); cursor:pointer; }
.video-card:hover { transform:translateY(-5px); box-shadow:var(--shadow-lg); }
.video-thumb { position:relative; aspect-ratio:16/9; overflow:hidden; }
.video-thumb img { width:100%; height:100%; object-fit:cover; transition:transform 0.4s ease; }
.video-card:hover .video-thumb img { transform:scale(1.05); }
.video-play-btn { position:absolute; inset:0; display:flex; align-items:center; justify-content:center; background:rgba(0,0,0,0.25); opacity:0; transition:opacity var(--transition); }
.video-card:hover .video-play-btn { opacity:1; }
.video-play-btn svg { width:52px; height:52px; background:rgba(212,53,106,0.9); border-radius:50%; padding:14px; fill:#fff; transition:transform var(--transition); }
.video-card:hover .video-play-btn svg { transform:scale(1.1); }
.video-tag { position:absolute; top:10px; left:10px; background:rgba(212,53,106,0.9); color:#fff; font-size:0.7rem; padding:3px 9px; border-radius:10px; font-weight:600; }
.video-duration { position:absolute; bottom:10px; right:10px; background:rgba(0,0,0,0.65); color:#fff; font-size:0.72rem; padding:2px 7px; border-radius:4px; }
.video-info { padding:14px; }
.video-info h4 { font-size:0.92rem; font-weight:700; color:var(--dark); margin-bottom:8px; line-height:1.4; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.video-meta { display:flex; gap:12px; font-size:0.78rem; color:var(--gray); }

/* ---- AI 区块 ---- */
.ai-section { background:linear-gradient(135deg,var(--dark) 0%,var(--dark2) 100%); padding:70px 0; }
.ai-section .section-title h2 { color:#fff; }
.ai-section .section-title p  { color:rgba(255,255,255,0.7); }
.ai-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.ai-card { background:rgba(255,255,255,0.07); border:1px solid rgba(255,255,255,0.12); border-radius:var(--radius); padding:26px; transition:all var(--transition); }
.ai-card:hover { background:rgba(212,53,106,0.15); border-color:rgba(212,53,106,0.4); transform:translateY(-4px); }
.ai-card-icon { font-size:2rem; margin-bottom:12px; }
.ai-card h3 { font-size:1rem; font-weight:700; color:#fff; margin-bottom:10px; }
.ai-card p  { font-size:0.83rem; color:rgba(255,255,255,0.7); line-height:1.7; }

/* ---- 社区卡片 ---- */
.community-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }
.community-card { background:var(--white); border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow); border:1px solid var(--gray-light); transition:all var(--transition); }
.community-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-lg); }
.community-card-img { aspect-ratio:16/7; overflow:hidden; }
.community-card-img img { width:100%; height:100%; object-fit:cover; transition:transform 0.4s ease; }
.community-card:hover .community-card-img img { transform:scale(1.04); }
.community-card-body { padding:20px; }
.community-card-body h3 { font-size:1rem; font-weight:700; color:var(--dark); margin-bottom:8px; }
.community-card-body p  { font-size:0.84rem; color:var(--gray); line-height:1.7; margin-bottom:14px; }

/* ---- 专家卡片 ---- */
.expert-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.expert-card { background:var(--white); border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow); border:1px solid var(--gray-light); transition:all var(--transition); }
.expert-card:hover { transform:translateY(-5px); box-shadow:var(--shadow-lg); }
.expert-avatar { aspect-ratio:1; overflow:hidden; }
.expert-avatar img { width:100%; height:100%; object-fit:cover; transition:transform 0.4s ease; }
.expert-card:hover .expert-avatar img { transform:scale(1.05); }
.expert-body { padding:20px; }
.expert-body h3 { font-size:1.05rem; font-weight:800; color:var(--dark); margin-bottom:4px; }
.expert-role { font-size:0.78rem; color:var(--pink); font-weight:600; margin-bottom:10px; }
.expert-desc { font-size:0.83rem; color:var(--gray); line-height:1.7; margin-bottom:14px; }
.expert-tags { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:14px; }
.expert-tag  { font-size:0.72rem; background:rgba(212,53,106,0.08); color:var(--pink); padding:3px 10px; border-radius:10px; font-weight:600; }
.expert-btns { display:flex; gap:8px; }

/* ---- 合作品牌 ---- */
.partner-wall { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.partner-item { background:var(--white); border:1px solid var(--gray-light); border-radius:12px; padding:18px; text-align:center; font-size:0.88rem; font-weight:600; color:var(--gray); transition:all var(--transition); }
.partner-item:hover { border-color:var(--pink); color:var(--pink); box-shadow:var(--shadow); }

/* ---- 联系区 ---- */
.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:start; }
.contact-info h3 { font-size:1.3rem; font-weight:800; color:var(--dark); margin-bottom:24px; }
.contact-item { display:flex; gap:14px; margin-bottom:20px; }
.contact-icon { width:44px; height:44px; background:rgba(212,53,106,0.1); border-radius:12px; display:flex; align-items:center; justify-content:center; font-size:1.2rem; flex-shrink:0; }
.contact-item-text h4 { font-size:0.88rem; font-weight:700; color:var(--dark); margin-bottom:4px; }
.contact-item-text p  { font-size:0.84rem; color:var(--gray); line-height:1.6; }

/* ---- QR码区 ---- */
.qr-codes { display:flex; gap:20px; flex-wrap:wrap; }
.qr-item { text-align:center; }
.qr-box { width:120px; height:120px; background:#fff; border:1px solid var(--gray-light); border-radius:12px; display:flex; align-items:center; justify-content:center; margin-bottom:8px; padding:8px; }
.qr-item p { font-size:0.8rem; color:var(--gray); line-height:1.4; }

/* ---- 评价卡片 ---- */
.review-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.review-card { background:var(--white); border-radius:var(--radius); padding:22px; box-shadow:var(--shadow); border:1px solid var(--gray-light); transition:all var(--transition); }
.review-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-lg); }
.review-header { display:flex; align-items:center; gap:12px; margin-bottom:12px; }
.review-avatar { width:44px; height:44px; border-radius:50%; background:linear-gradient(135deg,var(--pink),var(--pink-light)); color:#fff; display:flex; align-items:center; justify-content:center; font-size:1rem; font-weight:700; flex-shrink:0; }
.review-user h4   { font-size:0.9rem; font-weight:700; color:var(--dark); }
.review-user span { font-size:0.75rem; color:var(--gray); }
.review-stars { color:#F59E0B; font-size:0.9rem; margin-bottom:10px; }
.review-text  { font-size:0.84rem; color:var(--gray); line-height:1.7; }

/* ---- FAQ ---- */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { background:var(--white); border-radius:var(--radius); margin-bottom:12px; border:1px solid var(--gray-light); overflow:hidden; transition:all var(--transition); }
.faq-item.open { border-color:rgba(212,53,106,0.3); box-shadow:var(--shadow); }
.faq-question { display:flex; justify-content:space-between; align-items:center; padding:18px 22px; cursor:pointer; font-size:0.95rem; font-weight:600; color:var(--dark); user-select:none; }
.faq-item.open .faq-question { color:var(--pink); }
.faq-icon { width:28px; height:28px; background:rgba(212,53,106,0.1); border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:1.1rem; color:var(--pink); flex-shrink:0; transition:transform var(--transition); }
.faq-item.open .faq-icon { transform:rotate(45deg); background:var(--pink); color:#fff; }
.faq-answer { max-height:0; overflow:hidden; transition:max-height 0.35s ease,padding 0.35s ease; padding:0 22px; font-size:0.88rem; color:var(--gray); line-height:1.8; }
.faq-item.open .faq-answer { max-height:300px; padding:0 22px 18px; }

/* ---- 分享按钮 ---- */
.share-bar { display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }
.share-btn { padding:10px 22px; border-radius:24px; border:1.5px solid var(--gray-light); background:var(--white); font-size:0.88rem; font-weight:600; color:var(--dark); transition:all var(--transition); }
.share-wechat:hover  { border-color:#07C160; color:#07C160; background:rgba(7,193,96,0.06); }
.share-weibo:hover   { border-color:#E6162D; color:#E6162D; background:rgba(230,22,45,0.06); }
.share-douyin:hover  { border-color:#000; color:#000; background:rgba(0,0,0,0.04); }
.share-bilibili:hover{ border-color:#00A1D6; color:#00A1D6; background:rgba(0,161,214,0.06); }

/* ---- 面包屑 ---- */
.breadcrumb { background:var(--white); border-bottom:1px solid var(--gray-light); padding:10px 0; }
.breadcrumb-list { display:flex; align-items:center; gap:8px; font-size:0.82rem; color:var(--gray); flex-wrap:wrap; }
.breadcrumb-list li:not(:last-child)::after { content:'›'; margin-left:8px; color:var(--gray-light); }
.breadcrumb-list a { color:var(--pink); }

/* ---- 页面Banner ---- */
.page-banner { background:linear-gradient(135deg,var(--dark),var(--pink)); padding:60px 20px; text-align:center; color:#fff; }
.page-banner-content h1 { font-size:2.2rem; font-weight:900; margin-bottom:12px; }
.page-banner-content p  { font-size:1rem; opacity:0.85; max-width:600px; margin:0 auto; }

/* ---- 内容布局（传媒页） ---- */
.content-layout { display:grid; grid-template-columns:1fr 300px; gap:32px; align-items:start; }
.sidebar-card { background:var(--white); border-radius:var(--radius); padding:20px; box-shadow:var(--shadow); border:1px solid var(--gray-light); margin-bottom:20px; }
.sidebar-card h3 { font-size:0.95rem; font-weight:700; color:var(--dark); margin-bottom:14px; padding-bottom:10px; border-bottom:1px solid var(--gray-light); }
.hot-list li { margin-bottom:10px; }
.hot-list a { font-size:0.83rem; color:var(--gray); display:flex; align-items:center; gap:8px; transition:color var(--transition); }
.hot-list a:hover { color:var(--pink); }
.hot-num { display:inline-flex; align-items:center; justify-content:center; width:20px; height:20px; border-radius:4px; font-size:0.72rem; font-weight:700; background:var(--gray-light); color:var(--gray); flex-shrink:0; }
.hot-num.top3 { background:var(--pink); color:#fff; }
.tag { font-size:0.75rem; background:rgba(212,53,106,0.08); color:var(--pink); padding:4px 10px; border-radius:10px; font-weight:500; cursor:pointer; transition:all var(--transition); display:inline-block; }
.tag:hover { background:var(--pink); color:#fff; }

/* ---- 筛选按钮 ---- */
.filter-btn { transition:all var(--transition); }
.filter-btn.active { background:linear-gradient(135deg,var(--pink),var(--pink-light)); color:#fff; border-color:transparent; box-shadow:0 4px 14px rgba(212,53,106,0.3); }

/* ---- 弹窗 ---- */
.modal-overlay { position:fixed; inset:0; background:rgba(0,0,0,0.6); z-index:9000; display:flex; align-items:center; justify-content:center; opacity:0; pointer-events:none; transition:opacity var(--transition); }
.modal-overlay.open { opacity:1; pointer-events:all; }
.modal { background:var(--white); border-radius:20px; padding:32px; max-width:500px; width:90%; position:relative; transform:scale(0.9); transition:transform var(--transition); }
.modal-overlay.open .modal { transform:scale(1); }
.modal-close { position:absolute; top:14px; right:14px; background:var(--gray-light); border:none; width:32px; height:32px; border-radius:50%; font-size:0.9rem; color:var(--gray); display:flex; align-items:center; justify-content:center; transition:all var(--transition); }
.modal-close:hover { background:var(--pink); color:#fff; }

/* ---- 页脚 ---- */
.footer { background:var(--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 { display:flex; flex-direction:column; gap:10px; }
.footer-brand .footer-logo-img { width:48px; height:48px; border-radius:10px; object-fit:cover; }
.footer-brand .brand-name { font-size:1.2rem; font-weight:800; background:linear-gradient(135deg,var(--pink-light),#F5A7C0); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.footer-brand p { font-size:0.82rem; line-height:1.8; color:rgba(255,255,255,0.6); }
.footer-social { display:flex; gap:10px; margin-top:4px; }
.footer-social a { width:34px; height:34px; background:rgba(255,255,255,0.1); border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:0.78rem; font-weight:700; color:rgba(255,255,255,0.7); transition:all var(--transition); }
.footer-social a:hover { background:var(--pink); color:#fff; }
.footer-col h4 { font-size:0.92rem; font-weight:700; color:#fff; margin-bottom:16px; }
.footer-col ul li { margin-bottom:10px; }
.footer-col ul a { font-size:0.82rem; color:rgba(255,255,255,0.6); transition:color var(--transition); }
.footer-col ul a:hover { color:var(--pink-light); }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.1); padding:20px 0; display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:0.78rem; color:rgba(255,255,255,0.45); }
.footer-bottom a { color:rgba(255,255,255,0.45); transition:color var(--transition); }
.footer-bottom a:hover { color:var(--pink-light); }

/* ---- 弹幕样式 ---- */
.danmu-wrap { position:relative; width:100%; height:120px; overflow:hidden; background:rgba(0,0,0,0.04); border-radius:12px; margin:20px 0; }
.danmu-item { position:absolute; white-space:nowrap; font-size:0.85rem; color:var(--dark); background:rgba(255,255,255,0.9); padding:4px 12px; border-radius:20px; box-shadow:0 2px 8px rgba(0,0,0,0.08); animation:danmuScroll linear infinite; }
@keyframes danmuScroll {
  from { transform:translateX(100vw); }
  to   { transform:translateX(-100%); }
}

/* ---- 情感/科普模块 ---- */
.edu-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.edu-card { background:var(--white); border-radius:var(--radius); padding:24px; box-shadow:var(--shadow); border:1px solid var(--gray-light); transition:all var(--transition); }
.edu-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-lg); border-color:rgba(212,53,106,0.2); }
.edu-card-icon { font-size:2rem; margin-bottom:12px; }
.edu-card h3 { font-size:1rem; font-weight:700; color:var(--dark); margin-bottom:10px; }
.edu-card p  { font-size:0.84rem; color:var(--gray); line-height:1.7; }

/* ---- 响应式 ---- */
@media(max-width:1024px) {
  .feature-grid  { grid-template-columns:repeat(2,1fr); }
  .ai-grid       { grid-template-columns:repeat(2,1fr); }
  .expert-grid   { grid-template-columns:repeat(2,1fr); }
  .review-grid   { grid-template-columns:repeat(2,1fr); }
  .footer-grid   { grid-template-columns:1fr 1fr; }
  .stats-grid    { grid-template-columns:repeat(2,1fr); }
  .partner-wall  { grid-template-columns:repeat(3,1fr); }
  .content-layout{ grid-template-columns:1fr; }
  .edu-grid      { grid-template-columns:repeat(2,1fr); }
}

@media(max-width:768px) {
  .hero { height:420px; }
  .hero-content h1 { font-size:1.9rem; }
  .hero-content p  { font-size:0.9rem; }
  .navbar-nav { display:none; position:fixed; top:0; left:0; right:0; bottom:0; background:var(--white); flex-direction:column; justify-content:center; align-items:center; gap:12px; z-index:999; }
  .navbar-nav.open { display:flex; }
  .navbar-nav a { font-size:1.1rem; padding:12px 24px; }
  .navbar-toggle { display:flex; z-index:1000; }
  .navbar-search { display:none; }
  .video-grid    { grid-template-columns:repeat(2,1fr); }
  .community-grid{ grid-template-columns:1fr; }
  .contact-grid  { grid-template-columns:1fr; }
  .feature-grid  { grid-template-columns:1fr; }
  .ai-grid       { grid-template-columns:1fr; }
  .expert-grid   { grid-template-columns:1fr; }
  .review-grid   { grid-template-columns:1fr; }
  .footer-grid   { grid-template-columns:1fr; }
  .partner-wall  { grid-template-columns:repeat(2,1fr); }
  .edu-grid      { grid-template-columns:1fr; }
  .section       { padding:48px 0; }
  .section-title h2 { font-size:1.5rem; }
  .page-banner-content h1 { font-size:1.6rem; }
  .top-bar-right { display:none; }
}

@media(max-width:480px) {
  .hero { height:340px; }
  .hero-content h1 { font-size:1.5rem; }
  .video-grid  { grid-template-columns:1fr; }
  .stats-grid  { grid-template-columns:repeat(2,1fr); }
  .partner-wall{ grid-template-columns:repeat(2,1fr); }
  .hero-btns   { flex-direction:column; gap:10px; }
  .hero-btns .btn { width:fit-content; }
}