:root{
  --bg:#f7f4ef; --surface:#ffffff; --text:#2c2a26; --muted:#6f6a61;
  --primary:#2f9e7e; --primary-soft:#e6f4ef; --accent:#e7a14e;
  --border:#ece7df; --shadow:0 10px 30px rgba(40,36,30,.08);
  --shadow-lg:0 18px 48px rgba(40,36,30,.14); --radius:18px;
  --maxw:1120px; --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#15171c; --surface:#1e2127; --text:#e9e6e0; --muted:#a39e95;
    --primary:#3fb28c; --primary-soft:#1b2a25; --accent:#e7a14e;
    --border:#2b2f37; --shadow:0 12px 34px rgba(0,0,0,.38);
    --shadow-lg:0 20px 52px rgba(0,0,0,.5);
  }
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.78;
  -webkit-font-smoothing:antialiased;font-size:16px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:saturate(160%) blur(12px);
  background:color-mix(in srgb,var(--surface) 82%,transparent);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.5px}
.brand .dot{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--primary),var(--accent));
  display:grid;place-items:center;color:#fff;font-size:16px}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{color:var(--muted);font-weight:600;font-size:15px;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--primary)}
.hero{position:relative;overflow:hidden;border-radius:26px;margin:30px 0 18px;
  background:linear-gradient(135deg,#2f9e7e,#3fb28c 40%,#e7a14e);color:#fff;box-shadow:var(--shadow-lg)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px;align-items:center;padding:46px 44px}
.hero h1{font-size:clamp(28px,4.4vw,46px);line-height:1.18;font-weight:850;letter-spacing:.5px}
.hero p{margin-top:14px;font-size:clamp(15px,2vw,18px);opacity:.95;max-width:32ch}
.hero .cta{margin-top:24px;display:inline-flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;
  font-weight:700;font-size:15px;transition:transform .18s,box-shadow .18s}
.btn-primary{background:#fff;color:#1f7a5e;box-shadow:0 8px 20px rgba(0,0,0,.18)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.15)}
.hero-art{width:100%;border-radius:18px;box-shadow:0 16px 40px rgba(0,0,0,.25)}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;margin:38px 0 18px;flex-wrap:wrap;gap:8px}
.sec-head h2{font-size:25px;font-weight:800}
.sec-head .sub{color:var(--muted);font-size:14px}
.stats{display:flex;gap:14px;flex-wrap:wrap;margin:6px 0 4px}
.stat{flex:1;min-width:150px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px 22px;box-shadow:var(--shadow)}
.stat .n{font-size:30px;font-weight:850;color:var(--primary);line-height:1}
.stat .l{color:var(--muted);font-size:14px;margin-top:6px}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.feature{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:22px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.feature .ic{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;font-size:22px;background:var(--primary-soft);color:var(--primary);margin-bottom:12px}
.feature h3{font-size:17px;font-weight:800;margin-bottom:6px}
.feature p{color:var(--muted);font-size:14.5px}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:16px}
.cat{display:flex;align-items:center;gap:13px;background:var(--surface);border:1px solid var(--border);border-radius:15px;padding:16px 18px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.cat:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.cat .dot2{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;display:grid;place-items:center;font-size:20px;flex:none}
.cat h3{font-size:16px;font-weight:800}
.cat span{color:var(--muted);font-size:13px;display:block}
.section-tint{background:linear-gradient(135deg,var(--primary-soft),color-mix(in srgb,var(--accent) 18%,var(--primary-soft)));border-radius:22px;padding:26px 26px;margin:32px 0;box-shadow:var(--shadow)}
.hl{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.hl .badge{width:54px;height:54px;border-radius:15px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;display:grid;place-items:center;font-size:26px;flex:none}
.hl h3{font-size:19px;font-weight:800}
.hl p{color:var(--muted);font-size:14.5px;margin-top:4px;max-width:62ch}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}
.chip{font-size:12px;font-weight:700;padding:5px 11px;border-radius:999px;background:var(--primary-soft);color:var(--primary);border:1px solid transparent;transition:transform .15s,background .15s,color .15s}
.chip:hover{transform:translateY(-1px);background:var(--primary);color:#fff}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px;align-items:stretch}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s;display:flex;flex-direction:column;height:100%}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg)}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.card:hover .thumb img{transform:scale(1.04)}
.card .body{padding:15px 18px 17px;display:flex;flex-direction:column;gap:6px;flex:1}
.tag{font-size:11px;font-weight:800;color:var(--primary);background:var(--primary-soft);padding:3px 9px;border-radius:999px;align-self:flex-start;letter-spacing:.3px}
.card h3{font-size:17px;font-weight:800;line-height:1.38;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.76em}
.card p{color:var(--muted);font-size:14px;line-height:1.62;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:3.24em}
.card .meta{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--border)}
.card .meta .arrow{margin-left:auto;font-weight:800;color:var(--primary)}
.all-link{display:inline-flex;align-items:center;gap:8px;margin-top:22px;padding:13px 26px;border-radius:999px;
  background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-weight:800;font-size:15px;transition:transform .18s,box-shadow .18s}
.all-link:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.article-hero{position:relative;height:300px;overflow:hidden}
.article-hero img{width:100%;height:100%;object-fit:cover}
.article-hero .overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.55),rgba(0,0,0,0) 55%)}
.article-hero .cap{position:absolute;left:0;right:0;bottom:0;padding:26px 0;color:#fff}
.article-hero .cap .tag{background:rgba(255,255,255,.18);color:#fff;backdrop-filter:blur(4px)}
.article-hero h1{font-size:clamp(24px,3.6vw,38px);font-weight:850;margin-top:10px;text-shadow:0 2px 12px rgba(0,0,0,.4)}
.breadcrumb{padding:16px 0;color:var(--muted);font-size:14px}
.breadcrumb a:hover{color:var(--primary)}
.post-meta{color:var(--muted);font-size:13px;padding:2px 0 0}
.container{max-width:820px;margin:0 auto;padding:0 22px}
.article-body{padding:18px 0 10px}
.article-body .lead{font-size:18px;color:var(--text);background:var(--surface);border:1px solid var(--border);
  border-left:4px solid var(--primary);border-radius:12px;padding:18px 20px;margin-bottom:26px;box-shadow:var(--shadow)}
.tips h2,.note h2{font-size:22px;font-weight:800;margin:30px 0 16px}
.tip-list{list-style:none;display:flex;flex-direction:column;gap:14px}
.tip-list li{display:flex;gap:16px;align-items:flex-start;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow)}
.tip-no{flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--primary),var(--accent))}
.tip-list h3{font-size:16.5px;font-weight:800;margin-bottom:4px}
.tip-list p{color:var(--muted);font-size:15px}
.note .box{background:var(--primary-soft);border:1px solid color-mix(in srgb,var(--primary) 30%,transparent);border-radius:14px;padding:18px 20px;font-size:15px}
.note .box b{color:var(--primary)}
.related{margin:40px 0 10px}
.site-footer{margin-top:54px;border-top:1px solid var(--border);background:var(--surface)}
.footer-grid{max-width:var(--maxw);margin:0 auto;padding:38px 22px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.footer-grid h4{font-size:15px;font-weight:800;margin-bottom:12px}
.footer-grid p,.footer-grid a{color:var(--muted);font-size:14px;line-height:1.9}
.footer-grid a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid var(--border);text-align:center;color:var(--muted);font-size:13px;padding:18px}
@media (max-width:760px){
  .hero-grid{grid-template-columns:1fr;padding:34px 26px}
  .hero-art{order:-1;max-height:200px;object-fit:cover}
  .nav-links{gap:16px}.nav-links a:not(.brand){font-size:14px}
  .footer-grid{grid-template-columns:1fr;gap:22px}
  .grid{grid-template-columns:1fr}
  .article-hero{height:220px}
  .stat{flex-basis:100%}
}
.tag-cloud{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 8px}
.tag-chip{font-size:14px;font-weight:700;padding:8px 16px;border-radius:999px;background:var(--surface);
  border:1px solid var(--border);color:var(--text);transition:transform .18s,box-shadow .18s,background .18s,color .18s}
.tag-chip:hover{transform:translateY(-3px);background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:var(--shadow-lg)}
.tag-index{display:flex;flex-direction:column;gap:14px;margin-top:22px}
.tag-sec{padding:22px 0 6px;border-top:1px solid var(--border)}
.tag-sec:first-child{border-top:none}
.tag-sec h2{font-size:21px;font-weight:850;color:var(--primary)}
.art-tags a.chip{transition:transform .18s,box-shadow .18s}
.art-tags a.chip:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--primary)}