/* ===== 博客基础样式（组件层，各主题只需覆盖配色与特色） ===== */
:root{
  --bg:#fff;--fg:#1a1a1a;--fg2:#6b7280;--fg3:#9ca3af;--line:#e8e8e8;
  --accent:#0066cc;--code-bg:#f6f8fa;--card:#fff;--radius:14px;
  --shadow:0 1px 2px rgba(0,0,0,.04),0 4px 16px rgba(0,0,0,.05);
  --shadow-h:0 4px 10px rgba(0,0,0,.06),0 12px 32px rgba(0,0,0,.09);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--fg);line-height:1.8;font-size:16.5px;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
.wrap{max-width:760px;margin:0 auto;padding:0 22px}
a{color:var(--accent);text-decoration:none;transition:color .15s}
a:hover{color:var(--accent);text-decoration:underline}
img{max-width:100%;height:auto}
.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:12px;top:12px;z-index:99;background:var(--accent);color:#fff;padding:8px 14px;border-radius:8px}
.dot{color:var(--fg3);margin:0 6px}
.count{color:var(--fg3);font-size:13px;font-weight:400;margin-left:6px}
.empty{color:var(--fg2);padding:70px 0;text-align:center;font-size:15px}
.empty-sm{color:var(--fg3);font-size:13.5px;padding:8px 0}
.back-link{display:inline-block;margin-top:40px;font-size:14px;color:var(--fg2)}
.back-link:hover{color:var(--accent);text-decoration:none}

/* ---------- 页头 ---------- */
.site-header{border-bottom:1px solid var(--line);padding:26px 0;margin-bottom:44px;
  position:sticky;top:0;background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:saturate(180%) blur(12px);z-index:20}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px}
.site-brand{display:flex;align-items:baseline;gap:11px;flex-wrap:wrap;min-width:0}
.site-logo{font-size:20px;font-weight:700;color:var(--fg);letter-spacing:.2px}
.site-logo:hover{text-decoration:none;color:var(--accent)}
.site-desc{font-size:13px;color:var(--fg2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:320px}
.site-nav{display:flex;gap:4px;font-size:14px;flex-wrap:wrap}
.site-nav a{color:var(--fg2);padding:5px 11px;border-radius:8px;text-decoration:none}
.site-nav a:hover{color:var(--fg);background:color-mix(in srgb, var(--fg) 6%, transparent)}

/* ---------- 首页简介 ---------- */
.site-intro{padding:8px 0 40px;border-bottom:1px solid var(--line);margin-bottom:40px}
.intro-title{font-size:33px;font-weight:800;letter-spacing:-.5px;line-height:1.3;margin-bottom:10px}
.intro-desc{font-size:16px;color:var(--fg2);max-width:600px}
.site-stats{display:flex;gap:22px;margin-top:20px;font-size:13.5px;color:var(--fg2);flex-wrap:wrap}
.site-stats b{color:var(--fg);font-size:16px;font-weight:700;margin-right:3px}

/* ---------- 文章卡片 ---------- */
.post-grid{display:grid;gap:20px}
.post-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .18s, box-shadow .18s;box-shadow:var(--shadow)}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h)}
.post-card.has-cover{display:grid;grid-template-columns:220px 1fr}
.card-cover{display:block;overflow:hidden;background:var(--code-bg);min-height:150px}
.card-cover img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s}
.post-card:hover .card-cover img{transform:scale(1.04)}
.card-body{padding:20px 22px;display:flex;flex-direction:column;justify-content:center;min-width:0}
.card-title{font-size:19px;font-weight:650;line-height:1.45;margin-bottom:8px;letter-spacing:-.1px}
.card-title a{color:var(--fg)}
.card-title a:hover{color:var(--accent);text-decoration:none}
.card-summary{font-size:14.5px;color:var(--fg2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:11px;font-size:12.5px;color:var(--fg3);display:flex;align-items:center;flex-wrap:wrap}
.card-meta time{color:var(--fg3)}
.card-meta .cat{color:var(--accent)}
.pin{display:inline-block;background:var(--accent);color:#fff;font-size:11px;font-weight:600;
  padding:1px 7px;border-radius:5px;margin-right:7px;vertical-align:2px}

/* ---------- 文章页 ---------- */
.post-header{margin-bottom:30px}
.post-cat{display:inline-block;font-size:12.5px;color:var(--accent);
  background:color-mix(in srgb, var(--accent) 10%, transparent);
  padding:3px 11px;border-radius:20px;margin-bottom:14px;font-weight:500}
.post-cat:hover{text-decoration:none;background:color-mix(in srgb, var(--accent) 18%, transparent)}
.post-title{font-size:32px;font-weight:800;line-height:1.35;letter-spacing:-.5px;margin-bottom:14px}
.post-meta{font-size:13.5px;color:var(--fg2);display:flex;align-items:center;flex-wrap:wrap;gap:0}
.post-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}
.tag{display:inline-block;background:color-mix(in srgb, var(--fg) 5%, transparent);
  color:var(--fg2);border-radius:7px;padding:3px 10px;font-size:12.5px}
.tag:hover{background:color-mix(in srgb, var(--accent) 12%, transparent);color:var(--accent);text-decoration:none}
.post-cover{width:100%;border-radius:var(--radius);margin-bottom:34px;display:block;box-shadow:var(--shadow)}
.post-body{display:block}
.post-body.with-toc{display:grid;grid-template-columns:200px 1fr;gap:34px;align-items:start}
.post-toc{position:sticky;top:90px;font-size:13px;border-left:2px solid var(--line);padding-left:14px;
  max-height:calc(100vh - 130px);overflow-y:auto}
.toc-title{font-size:12px;font-weight:700;color:var(--fg3);letter-spacing:1px;
  text-transform:uppercase;margin-bottom:9px}
.post-toc ul{list-style:none}
.post-toc li{margin:6px 0;line-height:1.5}
.post-toc li.lvl3{padding-left:12px;font-size:12.5px}
.post-toc a{color:var(--fg2);display:block;overflow:hidden;text-overflow:ellipsis}
.post-toc a:hover{color:var(--accent);text-decoration:none}
.post-content{font-size:17px;min-width:0}
.post-content h2{font-size:23px;font-weight:700;margin:38px 0 14px;letter-spacing:-.2px;scroll-margin-top:90px}
.post-content h3{font-size:19px;font-weight:650;margin:30px 0 12px;scroll-margin-top:90px}
.post-content h4{font-size:16.5px;font-weight:650;margin:24px 0 10px}
.post-content p{margin:17px 0}
.post-content ul,.post-content ol{margin:17px 0 17px 26px}
.post-content li{margin:7px 0}
.post-content img{border-radius:10px;margin:18px 0;box-shadow:var(--shadow)}
.post-content a{border-bottom:1px solid color-mix(in srgb, var(--accent) 35%, transparent)}
.post-content a:hover{text-decoration:none;border-color:var(--accent)}
.post-content blockquote{border-left:3px solid var(--accent);background:color-mix(in srgb, var(--accent) 4%, transparent);
  padding:6px 20px;margin:22px 0;border-radius:0 10px 10px 0;color:var(--fg2)}
.post-content blockquote p{margin:10px 0}
.post-content code{background:var(--code-bg);padding:2px 7px;border-radius:6px;font-size:14.5px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;border:1px solid var(--line)}
.post-content pre{background:var(--code-bg);padding:18px 20px;border-radius:12px;overflow-x:auto;
  margin:22px 0;border:1px solid var(--line);line-height:1.65}
.post-content pre code{background:none;padding:0;font-size:13.5px;border:none}
.post-content hr{border:none;border-top:1px solid var(--line);margin:34px 0}
.post-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.post-content th,.post-content td{border:1px solid var(--line);padding:9px 13px;text-align:left}
.post-content th{background:var(--code-bg);font-weight:650}

/* ---------- 上下篇 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:44px 0 0;
  padding-top:30px;border-top:1px solid var(--line)}
.pn{display:flex;flex-direction:column;gap:5px;padding:14px 16px;border:1px solid var(--line);
  border-radius:12px;background:var(--card);transition:.16s;min-width:0}
.pn:hover{text-decoration:none;border-color:var(--accent);transform:translateY(-1px)}
.pn.next{text-align:right}
.pn.empty{border:none;background:none}
.pn span{font-size:12px;color:var(--fg3)}
.pn strong{font-size:14.5px;font-weight:600;color:var(--fg);line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pn:hover strong{color:var(--accent)}

/* ---------- 相关文章 ---------- */
.related{margin-top:44px;padding-top:30px;border-top:1px solid var(--line)}
.sec-head{font-size:15px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:6px}
.related-list{display:grid;gap:10px}
.rel-item{display:flex;justify-content:space-between;align-items:center;gap:14px;
  padding:12px 16px;border:1px solid var(--line);border-radius:11px;background:var(--card);
  transition:.16s;text-decoration:none}
.rel-item:hover{border-color:var(--accent);transform:translateX(3px);text-decoration:none}
.rel-title{font-size:14.5px;color:var(--fg);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rel-date{font-size:12.5px;color:var(--fg3);flex-shrink:0}

/* ---------- 分页 ---------- */
.pager{display:flex;gap:8px;justify-content:center;margin-top:40px;flex-wrap:wrap}
.pg{padding:8px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px;
  background:var(--card);color:var(--fg2);text-decoration:none;transition:.15s;min-width:40px;text-align:center}
.pg:hover{border-color:var(--accent);color:var(--accent);text-decoration:none;transform:translateY(-1px)}
.pg.cur{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}

/* ---------- 列表 / 区块 ---------- */
.page-head{margin-bottom:36px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.page-head h1{font-size:29px;font-weight:800;letter-spacing:-.4px;margin-bottom:8px}
.page-desc{font-size:15px;color:var(--fg2);line-height:1.7}
.page-count{font-size:13.5px;color:var(--fg3);margin-top:8px}
.sec{margin-bottom:36px}
.post-list{list-style:none}
.post-list li{display:flex;align-items:baseline;gap:14px;padding:10px 0;
  border-bottom:1px dashed var(--line);font-size:15px}
.post-list li:last-child{border-bottom:none}
.post-list time{color:var(--fg3);font-size:13px;font-variant-numeric:tabular-nums;flex-shrink:0;min-width:82px}
.post-list a{color:var(--fg);flex:1;min-width:0}
.post-list a:hover{color:var(--accent);text-decoration:none}

/* ---------- 分类 / 标签云 ---------- */
.cat-cloud,.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;
  padding-bottom:28px;border-bottom:1px solid var(--line)}
.cat-chip,.tag-chip{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:11px;
  border:1px solid var(--line);background:var(--card);color:var(--fg);font-size:14px;
  transition:.16s;text-decoration:none}
.cat-chip:hover,.tag-chip:hover{border-color:var(--accent);color:var(--accent);
  text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow)}
.cat-chip span,.tag-chip span{background:color-mix(in srgb, var(--fg) 6%, transparent);
  color:var(--fg3);font-size:11.5px;padding:1px 7px;border-radius:20px;font-weight:600}
.cat{color:var(--accent)}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);margin-top:70px;padding:34px 0 44px;
  font-size:13px;color:var(--fg2)}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.footer-links{display:flex;gap:16px;flex-wrap:wrap}
.footer-links a{color:var(--fg2)}
.footer-links a:hover{color:var(--accent)}

/* ---------- 回到顶部 ---------- */
.to-top{position:fixed;right:24px;bottom:28px;width:42px;height:42px;border-radius:50%;
  background:var(--card);border:1px solid var(--line);color:var(--fg2);display:flex;
  align-items:center;justify-content:center;font-size:17px;box-shadow:var(--shadow);
  opacity:.75;transition:.2s;text-decoration:none;z-index:30}
.to-top:hover{opacity:1;color:var(--accent);border-color:var(--accent);transform:translateY(-2px);text-decoration:none}

/* ---------- 404 ---------- */
.e404{text-align:center;padding:60px 0}
.e404 h1{font-size:76px;font-weight:800;color:var(--fg3);letter-spacing:-3px;line-height:1}
.e404 p{color:var(--fg2);margin:14px 0 26px}
.btn-home{display:inline-block;padding:10px 24px;border-radius:11px;background:var(--accent);
  color:#fff;font-size:14.5px}
.btn-home:hover{text-decoration:none;opacity:.9}

/* ---------- 响应式 ---------- */
@media(max-width:820px){
  .post-body.with-toc{grid-template-columns:1fr}
  .post-toc{position:static;border-left:none;border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);padding:14px 0;max-height:none;margin-bottom:10px}
  .post-toc ul{display:flex;flex-wrap:wrap;gap:6px 16px}
  .post-toc li{margin:0}
  .post-toc li.lvl3{padding-left:0}
}
@media(max-width:640px){
  body{font-size:16px}
  .wrap{padding:0 17px}
  .site-header{padding:16px 0;margin-bottom:30px}
  .site-header .wrap{gap:10px}
  .site-nav{gap:2px;font-size:13.5px;width:100%;overflow-x:auto}
  .site-nav a{padding:4px 9px;white-space:nowrap}
  .site-desc{display:none}
  .intro-title{font-size:26px}
  .post-title{font-size:24px}
  .post-card.has-cover{grid-template-columns:1fr}
  .card-cover{min-height:180px}
  .post-content{font-size:16.5px}
  .post-content h2{font-size:20px}
  .post-nav{grid-template-columns:1fr}
  .pn.next{text-align:left}
  .footer-inner{flex-direction:column;align-items:flex-start;gap:12px}
  .to-top{right:16px;bottom:18px;width:38px;height:38px}
  .post-list li{flex-direction:column;gap:2px}
  .post-list time{min-width:0}
}


/* ===== 主题样式: portal ===== */
/* ===== 门面主题：官网级首屏 + 精选内容 + 关于我 ===== */
:root{
  --card:#ffffff;
  --fg3:#94a3b8;
  --radius:16px;
  --shadow:0 1px 2px rgba(15,23,42,.04),0 6px 20px rgba(15,23,42,.06);
  --shadow-h:0 6px 14px rgba(15,23,42,.07),0 18px 44px rgba(79,70,229,.13);
}
.wrap{max-width:820px}

/* ---------- 页头（透明融入首屏） ---------- */
.site-header{border-bottom:1px solid var(--line);padding:20px 0;margin-bottom:0;
  background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(14px)}
.site-logo{font-size:19px;font-weight:800;letter-spacing:-.2px}
.site-nav{gap:2px;font-size:14px}
.site-nav a{padding:6px 12px;border-radius:9px;font-weight:500}
.site-nav a:hover{background:color-mix(in srgb, var(--accent) 9%, transparent);color:var(--accent)}

/* ---------- 首屏 Hero ---------- */
.hero{
  margin:0 0 46px;padding:76px 0 64px;text-align:center;
  background:linear-gradient(160deg,#f8fafc 0%,#eef2ff 55%,#f5f3ff 100%);
  background-size:cover;background-position:center;position:relative;
}
.hero.has-bg{color:#fff}
.hero.has-bg .hero-title,.hero.has-bg .hero-stats b{color:#fff}
.hero.has-bg .hero-sub,.hero.has-bg .hero-stats{color:rgba(255,255,255,.86)}
.hero.has-bg .hero-avatar{border-color:rgba(255,255,255,.55);box-shadow:0 10px 34px rgba(0,0,0,.3)}
.hero-inner{max-width:660px;margin:0 auto;padding:0 22px}
.hero-avatar{
  width:106px;height:106px;border-radius:50%;object-fit:cover;margin-bottom:22px;
  border:4px solid #fff;box-shadow:0 8px 26px rgba(79,70,229,.18);
}
.hero-title{
  font-size:clamp(29px,5vw,44px);font-weight:850;line-height:1.22;letter-spacing:-1px;
  margin-bottom:15px;color:var(--fg);
  background:linear-gradient(115deg,#4f46e5,#7c3aed 55%,#2563eb);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero.has-bg .hero-title{background:none;-webkit-text-fill-color:#fff;color:#fff}
.hero-sub{font-size:17px;line-height:1.75;color:var(--fg2);max-width:560px;margin:0 auto 24px}

/* Hero 社交链接 */
.hero-social{display:flex;justify-content:center;gap:11px;flex-wrap:wrap;margin:6px 0 26px}
.social-item{
  display:inline-flex;align-items:center;gap:7px;padding:8px 15px;border-radius:11px;
  background:rgba(255,255,255,.9);border:1px solid var(--line);color:var(--fg2);
  font-size:13.5px;font-weight:500;text-decoration:none;transition:.16s;backdrop-filter:blur(6px);
}
.social-item:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);
  box-shadow:0 6px 16px rgba(79,70,229,.16);text-decoration:none}
.hero.has-bg .social-item{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.3);color:#fff}
.hero.has-bg .social-item:hover{background:rgba(255,255,255,.24);border-color:#fff}

/* Hero 按钮 */
.hero-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-bottom:34px}
.hero-btn{display:inline-flex;align-items:center;gap:7px;padding:11px 25px;border-radius:12px;
  font-size:14.5px;font-weight:600;text-decoration:none;transition:.18s}
.hero-btn.primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(79,70,229,.3)}
.hero-btn.primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(79,70,229,.4);text-decoration:none;color:#fff}
.hero-btn.ghost{background:rgba(255,255,255,.9);color:var(--fg);border:1px solid var(--line)}
.hero-btn.ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);text-decoration:none}
.hero.has-bg .hero-btn.ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.35);color:#fff}
.hero.has-bg .hero-btn.ghost:hover{border-color:#fff;color:#fff}

/* Hero 统计 */
.hero-stats{display:flex;justify-content:center;gap:30px;flex-wrap:wrap;
  font-size:13.5px;color:var(--fg2)}
.hero-stats b{font-size:22px;font-weight:800;color:var(--fg);margin-right:4px;
  font-variant-numeric:tabular-nums}

/* ---------- 首页区块 ---------- */
.home-sec{margin-bottom:44px}
.home-sec-head{display:flex;align-items:baseline;justify-content:space-between;
  gap:14px;margin-bottom:20px;flex-wrap:wrap}
.home-sec-head h2{font-size:19px;font-weight:750;letter-spacing:-.2px;position:relative;padding-left:13px}
.home-sec-head h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:17px;border-radius:3px;background:linear-gradient(var(--accent),#7c3aed)}
.home-sec-head .more{font-size:13.5px;color:var(--fg2);font-weight:500}
.home-sec-head .more:hover{color:var(--accent);text-decoration:none}

/* ---------- 文章卡片（门面增强） ---------- */
.post-grid{gap:18px}
.post-card{border-radius:var(--radius);border-color:var(--line)}
.post-card:hover{box-shadow:var(--shadow-h)}
.post-card.has-cover{grid-template-columns:250px 1fr}
.card-body{padding:24px 26px}
.card-title{font-size:20px}
.card-summary{font-size:15px;-webkit-line-clamp:3}
.card-meta{font-size:12.5px}

/* ---------- 关于我 ---------- */
.about{margin-bottom:40px}
.about-card{
  display:flex;gap:24px;align-items:flex-start;padding:28px 30px;
  background:linear-gradient(150deg,#fafbff,#f4f4ff);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
}
.about-avatar{width:78px;height:78px;border-radius:20px;object-fit:cover;flex-shrink:0;
  box-shadow:0 6px 18px rgba(79,70,229,.16)}
.about-main{min-width:0;flex:1}
.about-name{font-size:16.5px;font-weight:750;margin-bottom:9px}
.about-text{font-size:14.8px;line-height:1.85;color:var(--fg2);margin-bottom:16px}
.about-social{display:flex;gap:9px;flex-wrap:wrap;margin:0}
.about-social .social-item{background:#fff;padding:6px 13px;font-size:13px}

/* ---------- 文章页微调 ---------- */
.post-cat{border-radius:20px;background:color-mix(in srgb, var(--accent) 11%, transparent);
  padding:3px 13px;font-weight:600}
.post-title{font-size:34px;font-weight:820;letter-spacing:-.7px}
.post-header{padding-bottom:26px;border-bottom:1px solid var(--line)}
.post-content h2{padding-left:0}
.post-cover{border-radius:var(--radius)}
.pn,.rel-item{border-radius:14px}
.pn:hover,.rel-item:hover{box-shadow:var(--shadow)}

/* ---------- 其他 ---------- */
.page-head h1{font-weight:820;letter-spacing:-.4px}
.cat-chip,.tag-chip{border-radius:12px;font-weight:500}
.to-top{background:var(--accent);color:#fff;border:none;opacity:.9;
  box-shadow:0 6px 18px rgba(79,70,229,.3)}
.to-top:hover{opacity:1;color:#fff;transform:translateY(-3px)}
.site-footer{margin-top:56px}

/* ---------- 响应式 ---------- */
@media(max-width:820px){
  .hero{padding:58px 0 48px}
  .post-card.has-cover{grid-template-columns:1fr}
  .card-cover{min-height:190px}
  .about-card{flex-direction:column;gap:18px;padding:24px}
}
@media(max-width:640px){
  .hero{padding:46px 0 40px;margin-bottom:34px}
  .hero-avatar{width:86px;height:86px}
  .hero-stats{gap:20px}
  .hero-stats b{font-size:19px}
  .hero-actions{gap:9px}
  .hero-btn{padding:10px 19px;font-size:14px}
  .card-body{padding:20px}
  .about-card{padding:20px}
  .about-avatar{width:62px;height:62px;border-radius:16px}
}

/* ===================================================================
   官网页（Landing）
   =================================================================== */

/* 首屏 */
.lp-hero{
  margin:-2px 0 52px;padding:88px 0 74px;text-align:center;
  background:linear-gradient(155deg,#eef2ff 0%,#f5f3ff 45%,#fdf4ff 100%);
  background-size:cover;background-position:center;position:relative;overflow:hidden;
}
.lp-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(60% 55% at 50% 0%, rgba(79,70,229,.14), transparent 70%);
}
.lp-hero.has-bg::after{background:linear-gradient(180deg, rgba(15,23,42,.15), rgba(15,23,42,.4))}
.lp-hero-inner{max-width:760px;margin:0 auto;padding:0 22px;position:relative;z-index:1}
.lp-avatar{
  width:96px;height:96px;border-radius:26px;object-fit:cover;margin-bottom:24px;
  border:4px solid rgba(255,255,255,.9);box-shadow:0 12px 34px rgba(79,70,229,.22);
}
.lp-title{
  font-size:clamp(32px,5.6vw,50px);font-weight:850;letter-spacing:-1.4px;line-height:1.15;
  margin-bottom:16px;
  background:linear-gradient(112deg,#4f46e5,#7c3aed 50%,#2563eb);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.lp-slogan{
  font-size:clamp(16px,2.4vw,21px);font-weight:600;line-height:1.6;
  color:var(--fg);margin-bottom:14px;letter-spacing:-.2px;
}
.lp-desc{font-size:16px;line-height:1.85;color:var(--fg2);max-width:620px;margin:0 auto 30px}
.lp-hero.has-bg .lp-title{background:none;-webkit-text-fill-color:#fff;color:#fff;
  text-shadow:0 4px 20px rgba(0,0,0,.3)}
.lp-hero.has-bg .lp-slogan,.lp-hero.has-bg .lp-desc{color:rgba(255,255,255,.92)}
.lp-hero.has-bg .lp-avatar{border-color:rgba(255,255,255,.6)}

/* 首屏按钮 */
.lp-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-bottom:26px}
.lp-btn{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:13px;
  font-size:15.5px;font-weight:650;text-decoration:none;transition:.18s}
.lp-btn.primary{background:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(79,70,229,.32)}
.lp-btn.primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(79,70,229,.42);
  text-decoration:none;color:#fff}
.lp-btn.ghost{background:rgba(255,255,255,.92);color:var(--fg);border:1px solid var(--line)}
.lp-btn.ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);
  text-decoration:none}
.lp-hero.has-bg .lp-btn.ghost{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.4);color:#fff}
.lp-hero.has-bg .lp-btn.ghost:hover{border-color:#fff;color:#fff}

/* 区块 */
.lp-sec{margin-bottom:64px}
.lp-sec-head{text-align:center;margin-bottom:34px}
.lp-sec-head h2{font-size:clamp(21px,3vw,27px);font-weight:800;letter-spacing:-.6px;margin-bottom:9px}
.lp-sec-head p{font-size:14.5px;color:var(--fg2)}
.lp-sec-head a{color:var(--accent)}

/* 特色卡片 */
.lp-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.lp-card{
  background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px 24px;
  transition:.2s;box-shadow:var(--shadow);
}
.lp-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h);border-color:color-mix(in srgb, var(--accent) 30%, var(--line))}
.lp-card-ico{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(79,70,229,.13),rgba(124,58,237,.11));
  color:var(--accent);font-size:21px;margin-bottom:16px;
}
.lp-card h3{font-size:16.5px;font-weight:700;margin-bottom:9px;letter-spacing:-.2px}
.lp-card p{font-size:14.3px;line-height:1.75;color:var(--fg2)}

/* 数据区 */
.lp-stats{margin-bottom:64px;padding:40px 30px;border-radius:20px;
  background:linear-gradient(135deg,#4f46e5,#6d28d9);box-shadow:0 14px 40px rgba(79,70,229,.24)}
.lp-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:22px;text-align:center}
.lp-stat b{display:block;font-size:clamp(26px,4vw,36px);font-weight:850;color:#fff;
  letter-spacing:-1px;line-height:1.15;font-variant-numeric:tabular-nums}
.lp-stat span{display:block;margin-top:7px;font-size:13.5px;color:rgba(255,255,255,.82);letter-spacing:.3px}

/* 联系方式 */
.lp-contacts{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
.lp-contact{
  display:flex;align-items:center;gap:13px;padding:16px 20px;background:var(--card);
  border:1px solid var(--line);border-radius:14px;font-size:14.5px;transition:.16s;
}
.lp-contact:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow)}
.lp-contact i{font-size:18px;color:var(--accent);flex-shrink:0}
.lp-contact .cn{color:var(--fg2);font-size:13.5px;flex-shrink:0}
.lp-contact .cv{margin-left:auto;color:var(--fg);font-weight:500;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap}
a.cv:hover{color:var(--accent)}

@media(max-width:820px){
  .lp-hero{padding:64px 0 52px;margin-bottom:40px}
  .lp-sec,.lp-stats{margin-bottom:48px}
  .lp-stats{padding:32px 20px}
}
@media(max-width:640px){
  .lp-hero{padding:48px 0 42px}
  .lp-avatar{width:78px;height:78px;border-radius:22px;margin-bottom:18px}
  .lp-actions{gap:9px}
  .lp-btn{padding:11px 22px;font-size:14.5px;width:100%;justify-content:center}
  .lp-grid,.lp-contacts{grid-template-columns:1fr}
  .lp-card{padding:22px 20px}
  .lp-contact{padding:14px 16px}
}