:root{
  --bg:#f8f5ee;
  --panel:#fffdf8;
  --ink:#111827;
  --muted:#6b7280;
  --line:rgba(17,24,39,.10);
  --soft:rgba(255,255,255,.76);
  --brand:#b58a5f;
  --brand-dark:#7a5738;
  --blue:#547281;
  --radius:28px;
  --shadow:0 24px 80px rgba(17,24,39,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.72;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
.container{width:min(1160px,calc(100% - 40px));margin:0 auto}
.skip-link{position:absolute;left:-999px;top:12px;background:var(--ink);color:#fff;padding:10px 14px;border-radius:12px;z-index:99}.skip-link:focus{left:16px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(248,245,238,.88);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.navbar{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px}.brand-logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.04em}.brand-logo img{width:42px;height:42px;border-radius:14px}.brand-logo span{font-size:1.14rem}.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.nav-links a{font-size:.95rem;color:#374151;padding:10px 14px;border-radius:999px;transition:.2s ease}.nav-links a:hover,.nav-links a[aria-current="page"]{background:#fff;color:#111827;box-shadow:0 10px 30px rgba(17,24,39,.06)}
.search-shell{padding:0 0 20px}.search-box{display:grid;grid-template-columns:1fr auto;gap:10px;background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:999px;padding:8px;box-shadow:0 20px 60px rgba(17,24,39,.05)}.search-box input{border:0;background:transparent;padding:12px 18px;font-size:1rem;outline:0;color:var(--ink)}.search-box button,.btn{border:0;background:var(--ink);color:#fff;padding:12px 22px;border-radius:999px;font-weight:700;cursor:pointer;transition:.22s ease;display:inline-flex;align-items:center;justify-content:center}.search-box button:hover,.btn:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(17,24,39,.16)}.btn.secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}.search-note{min-height:24px;margin:8px 20px 0;color:var(--muted);font-size:.92rem}
.hero{padding:86px 0 70px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);gap:60px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.54);color:var(--brand-dark);font-weight:700;font-size:.92rem}.hero h1{font-size:clamp(2.6rem,6vw,5.8rem);line-height:.98;letter-spacing:-.08em;margin:22px 0}.hero p{font-size:1.12rem;color:#4b5563;max-width:680px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}.hero-media{position:relative}.hero-media figure{margin:0}.hero-media img{border-radius:42px;box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover}.hero-badge{position:absolute;right:22px;bottom:22px;background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:24px;padding:16px 18px;box-shadow:0 18px 50px rgba(17,24,39,.08)}.hero-badge strong{display:block;font-size:1.25rem}.hero-badge span{color:var(--muted);font-size:.9rem}.domain-line{font-size:.86rem;color:#6b7280;margin-top:10px}
.section{padding:70px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.section-title{margin:0;font-size:clamp(1.8rem,4vw,3.1rem);letter-spacing:-.055em;line-height:1.06}.section-desc{color:#596171;max-width:620px;margin:10px 0 0}.panel{background:rgba(255,255,255,.66);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 18px 60px rgba(17,24,39,.05)}
.about-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;padding:38px}.about-panel h2{font-size:2rem;letter-spacing:-.04em;margin:0 0 12px}.about-panel p{color:#4b5563}.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.metric{padding:24px;border-radius:24px;background:#fff;border:1px solid var(--line)}.metric strong{display:block;font-size:2.2rem;letter-spacing:-.05em}.metric span{color:var(--muted);font-size:.92rem}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.video-card{position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:30px;box-shadow:0 14px 44px rgba(17,24,39,.05);transition:.25s ease}.video-card:hover{transform:translateY(-4px);box-shadow:0 26px 70px rgba(17,24,39,.10)}.video-card figure{margin:0;position:relative;overflow:hidden}.video-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:.35s ease}.video-card:hover img{transform:scale(1.025)}.play-layer{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(180deg,rgba(17,24,39,.03),rgba(17,24,39,.38));opacity:0;transition:.22s ease}.video-card:hover .play-layer,.video-card:focus-within .play-layer{opacity:1}.play-button{width:72px;height:72px;border-radius:50%;background:rgba(255,255,255,.92);display:grid;place-items:center;box-shadow:0 20px 50px rgba(17,24,39,.2)}.play-button:before{content:"";margin-left:4px;border-left:18px solid var(--ink);border-top:12px solid transparent;border-bottom:12px solid transparent}.video-body{padding:20px}.video-body h3{font-size:1.08rem;line-height:1.45;margin:0 0 8px}.video-body p{color:#5f6674;margin:0 0 14px;font-size:.95rem}.tag-row{display:flex;gap:8px;flex-wrap:wrap}.tag{font-size:.78rem;color:var(--brand-dark);background:#f3eadf;border:1px solid rgba(181,138,95,.25);border-radius:999px;padding:5px 9px}.stats{display:flex;gap:12px;flex-wrap:wrap;color:#6b7280;font-size:.85rem;margin-top:14px}.image-caption{font-size:.82rem;color:#6b7280;margin:10px 2px 0}
.board-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.board-card{padding:24px;border-radius:26px;background:rgba(255,255,255,.72);border:1px solid var(--line);transition:.22s ease}.board-card:hover{transform:translateY(-3px);background:#fff}.board-card h3{margin:0 0 8px;font-size:1.1rem}.board-card p{margin:0 0 16px;color:#5f6674;font-size:.95rem}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.review-card{padding:24px;border-radius:26px;background:#fff;border:1px solid var(--line)}.review-card p{color:#4b5563;margin:0 0 18px}.review-card strong{display:block}.review-card span{color:var(--muted);font-size:.88rem}.faq-list{display:grid;gap:12px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px 20px}.faq-list summary{cursor:pointer;font-weight:750}.faq-list p{color:#596171;margin:12px 0 0}.join-panel{display:grid;grid-template-columns:1fr .9fr;gap:30px;padding:36px}.join-panel form{display:grid;gap:12px}.join-panel input,.join-panel textarea{width:100%;border:1px solid var(--line);border-radius:18px;background:#fff;padding:14px 16px;font:inherit;outline:0}.join-panel textarea{min-height:120px;resize:vertical}.form-note{color:var(--muted);font-size:.9rem;margin:0}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:#111827;color:#fff;padding:12px 16px;border-radius:999px;opacity:0;pointer-events:none;transition:.22s ease;z-index:80}.toast.show{opacity:1;transform:translate(-50%,0)}
.page-hero{padding:64px 0 34px}.page-hero h1{font-size:clamp(2.2rem,5vw,4.4rem);line-height:1;letter-spacing:-.07em;margin:16px 0}.breadcrumb{font-size:.92rem;color:var(--muted)}.content-layout{display:grid;grid-template-columns:1fr 320px;gap:22px;align-items:start}.article-panel{padding:34px}.article-panel h2{font-size:2rem;letter-spacing:-.04em;margin-top:0}.article-panel p,.article-panel li{color:#4b5563}.side-panel{padding:24px;position:sticky;top:110px}.simple-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}.simple-list a{display:block;padding:12px 14px;background:#fff;border:1px solid var(--line);border-radius:16px;color:#374151}.rank-list{counter-reset:item;display:grid;gap:12px;padding:0;margin:0;list-style:none}.rank-list li{counter-increment:item;display:flex;gap:14px;align-items:flex-start;padding:18px;border:1px solid var(--line);border-radius:20px;background:#fff}.rank-list li:before{content:counter(item);width:34px;height:34px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:800;flex:0 0 auto}.share-row{display:flex;flex-wrap:wrap;gap:10px}.share-row button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 14px;cursor:pointer;color:#374151}.share-row button:hover{background:var(--ink);color:#fff}.site-footer{margin-top:70px;padding:46px 0;background:#111827;color:#f9fafb}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:26px}.footer-logo{display:flex;align-items:center;gap:12px;font-weight:800}.footer-logo img{width:40px;height:40px;border-radius:14px}.site-footer p,.site-footer a,.site-footer li{color:#cbd5e1}.site-footer ul{list-style:none;padding:0;margin:10px 0 0}.site-footer a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:20px;color:#cbd5e1;font-size:.92rem;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
@media (max-width:980px){.hero-grid,.about-panel,.join-panel,.content-layout{grid-template-columns:1fr}.video-grid,.board-grid,.review-grid{grid-template-columns:repeat(2,1fr)}.side-panel{position:static}.section-head{display:block}.footer-grid{grid-template-columns:1fr 1fr}.metric-grid{grid-template-columns:1fr 1fr 1fr}}
@media (max-width:680px){.container{width:min(100% - 28px,1160px)}.navbar{align-items:flex-start;flex-direction:column;padding:14px 0}.nav-links{width:100%;overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px}.nav-links a{white-space:nowrap}.search-box{border-radius:24px;grid-template-columns:1fr}.hero{padding:54px 0 42px}.hero h1{letter-spacing:-.055em}.video-grid,.board-grid,.review-grid,.footer-grid{grid-template-columns:1fr}.about-panel,.join-panel,.article-panel{padding:24px}.metric-grid{grid-template-columns:1fr}.hero-badge{position:static;margin-top:12px}.section{padding:46px 0}.footer-bottom{display:block}}