:root{
  --bg:#f7f4ef;
  --surface:#fffdf9;
  --ink:#161a22;
  --muted:#667085;
  --line:rgba(22,26,34,.10);
  --soft:rgba(255,255,255,.72);
  --accent:#1f2937;
  --accent-2:#8b735b;
  --shadow:0 24px 80px rgba(17,24,39,.08);
  --radius:28px;
  --radius-sm:18px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;text-size-adjust:100%}
body{margin:0;background:radial-gradient(circle at 20% 10%,rgba(139,115,91,.14),transparent 34%),linear-gradient(180deg,#fbf8f3 0%,var(--bg) 46%,#f1eee8 100%);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,Arial,sans-serif;line-height:1.72;letter-spacing:.01em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(247,244,239,.82);backdrop-filter:blur(20px);border-bottom:1px solid var(--line)}
.nav-shell{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand-lockup{display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.04em}
.brand-mark{width:42px;height:42px;border-radius:15px;background:#151922;color:#fff;display:grid;place-items:center;box-shadow:0 12px 28px rgba(0,0,0,.12)}
.brand-text{font-size:19px}
.main-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.nav-link{padding:10px 14px;border-radius:999px;color:#475467;font-size:15px;transition:background .25s ease,color .25s ease,transform .25s ease}
.nav-link:hover,.nav-link.active{background:rgba(22,26,34,.08);color:#111827;transform:translateY(-1px)}
.search-strip{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 0 18px}
.fake-search{flex:1;display:flex;gap:10px;background:rgba(255,255,255,.76);border:1px solid var(--line);border-radius:999px;padding:8px;box-shadow:0 12px 40px rgba(17,24,39,.04)}
.fake-search input{flex:1;min-width:0;border:0;background:transparent;padding:0 16px;font-size:15px;outline:none;color:var(--ink)}
.fake-search button,.button{border:0;border-radius:999px;background:var(--accent);color:#fff;padding:12px 18px;font-weight:700;cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,background .25s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.fake-search button:hover,.button:hover{transform:translateY(-2px);box-shadow:0 14px 38px rgba(17,24,39,.18);background:#0f172a}
.button.secondary{background:#fff;color:#141922;border:1px solid var(--line)}
.host-chip{white-space:nowrap;font-size:13px;color:#667085;background:rgba(255,255,255,.66);border:1px solid var(--line);border-radius:999px;padding:10px 14px;margin:0}
.hero{padding:84px 0 70px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 18px;color:#7c6a55;font-weight:800;font-size:14px;letter-spacing:.08em;text-transform:uppercase}
.eyebrow:before{content:"";width:34px;height:1px;background:#9b8065}
h1{font-size:clamp(42px,6.6vw,84px);line-height:.98;letter-spacing:-.065em;margin:0 0 24px;font-weight:900}
h2{font-size:clamp(28px,4vw,52px);line-height:1.08;letter-spacing:-.04em;margin:0 0 14px;font-weight:850}
h3{font-size:22px;line-height:1.25;margin:0 0 10px;letter-spacing:-.02em}
p{color:var(--muted);margin:0 0 16px}.lead{font-size:20px;color:#475467;max-width:720px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:34px;max-width:720px}.metric{background:rgba(255,255,255,.66);border:1px solid var(--line);border-radius:22px;padding:18px}.metric strong{display:block;font-size:30px;line-height:1;color:#141922;letter-spacing:-.04em}.metric span{display:block;margin-top:8px;color:#667085;font-size:13px}.hero-media{position:relative}.hero-card{border-radius:38px;background:rgba(255,255,255,.62);border:1px solid var(--line);box-shadow:var(--shadow);padding:14px;overflow:hidden}.hero-card img{border-radius:28px;aspect-ratio:16/10;object-fit:cover}.floating-card{position:absolute;left:-22px;bottom:30px;max-width:260px;padding:18px;border-radius:24px;background:rgba(255,255,255,.86);backdrop-filter:blur(18px);border:1px solid var(--line);box-shadow:0 18px 60px rgba(17,24,39,.12)}.floating-card strong{display:block;margin-bottom:6px}.section{padding:82px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:30px}.section-head p{max-width:640px}.soft-panel,.card,.topic-card,.video-card,.quote-card,.faq details{background:rgba(255,255,255,.68);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 18px 70px rgba(17,24,39,.05)}.soft-panel{padding:42px}.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{padding:26px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.card:hover,.topic-card:hover,.video-card:hover,.quote-card:hover{transform:translateY(-5px);box-shadow:0 26px 70px rgba(17,24,39,.10);border-color:rgba(31,41,55,.22)}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.tag{font-size:12px;color:#5d4e3f;background:rgba(139,115,91,.10);border:1px solid rgba(139,115,91,.14);border-radius:999px;padding:6px 10px}.topic-card{padding:22px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.topic-meta{display:flex;gap:12px;flex-wrap:wrap;color:#667085;font-size:13px;margin-top:14px}.board-icon{width:44px;height:44px;border-radius:16px;background:#151922;color:#fff;display:grid;place-items:center;margin-bottom:18px}.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.video-card{overflow:hidden;position:relative;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.video-shell{position:relative;background:#111827}.video-shell img,.video-shell video{width:100%;aspect-ratio:16/10;object-fit:cover;opacity:.94}.video-frame{position:absolute;inset:0}.play-button{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.86);width:66px;height:66px;border-radius:50%;background:rgba(255,255,255,.88);display:grid;place-items:center;box-shadow:0 16px 42px rgba(0,0,0,.18);opacity:0;transition:opacity .25s ease,transform .25s ease}.play-button:after{content:"";display:block;margin-left:4px;border-left:18px solid #111827;border-top:12px solid transparent;border-bottom:12px solid transparent}.video-card:hover .play-button{opacity:1;transform:translate(-50%,-50%) scale(1)}.video-body{padding:20px}.video-body h3{font-size:19px}.image-description{font-size:13px;color:#7a6a56;margin-top:10px}.stats{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:16px;color:#667085;font-size:13px}.stats span{display:inline-flex;align-items:center;gap:4px}.quote-card{padding:24px}.quote-card blockquote{margin:0;color:#344054}.quote-card cite{display:block;font-style:normal;margin-top:16px;color:#667085;font-size:13px}.faq{display:grid;gap:12px}.faq details{padding:18px 22px}.faq summary{cursor:pointer;font-weight:800;color:#141922}.faq p{margin:12px 0 0}.join-panel{display:grid;grid-template-columns:1fr .85fr;gap:30px;align-items:center}.join-form{display:grid;gap:12px}.join-form input,.join-form textarea{width:100%;border:1px solid var(--line);background:rgba(255,255,255,.78);border-radius:18px;padding:14px 16px;font:inherit;outline:none}.join-form textarea{min-height:114px;resize:vertical}.breadcrumbs{padding:30px 0 0;color:#667085;font-size:14px}.breadcrumbs a{color:#344054}.page-hero{padding:62px 0 38px}.list-stack{display:grid;gap:16px}.rank-row{display:grid;grid-template-columns:52px 1fr auto;gap:16px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}.rank-row:last-child{border-bottom:0}.rank-num{width:42px;height:42px;border-radius:14px;background:#151922;color:#fff;display:grid;place-items:center;font-weight:800}.notice{border-left:4px solid #1f2937;padding:16px 18px;background:rgba(255,255,255,.64);border-radius:16px;color:#475467}.site-footer{border-top:1px solid var(--line);padding:58px 0;background:rgba(255,255,255,.48)}.footer-grid{display:grid;grid-template-columns:1.3fr .7fr 1fr;gap:36px}.footer-grid h2{font-size:18px;letter-spacing:0}.footer-grid a{display:block;color:#475467;margin:8px 0}.update-time{color:#1f2937;font-weight:800}.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(20px);background:#111827;color:#fff;padding:12px 18px;border-radius:999px;box-shadow:0 18px 60px rgba(0,0,0,.22);opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease;z-index:30}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media (max-width:920px){.nav-shell{align-items:flex-start;flex-direction:column;padding:18px 0}.main-nav{justify-content:flex-start}.search-strip,.hero-grid,.join-panel,.footer-grid{grid-template-columns:1fr;display:grid}.host-chip{white-space:normal}.hero{padding:58px 0 46px}.metrics,.grid-3,.grid-4,.video-grid{grid-template-columns:1fr 1fr}.section-head{align-items:flex-start;flex-direction:column}.floating-card{position:static;margin:14px 0 0;max-width:none}}
@media (max-width:620px){.container{width:min(100% - 24px,var(--max))}.fake-search{border-radius:24px;flex-direction:column}.fake-search button{width:100%}.metrics,.grid-2,.grid-3,.grid-4,.video-grid{grid-template-columns:1fr}.soft-panel{padding:26px}.section{padding:58px 0}h1{font-size:42px}.hero-actions{flex-direction:column}.button{width:100%}.rank-row{grid-template-columns:42px 1fr}.rank-row .topic-meta{grid-column:2}.hero-card{border-radius:28px}.hero-card img{border-radius:20px}}