:root{
  --bg:#f8f6f2;
  --panel:#ffffff;
  --ink:#111827;
  --muted:#6b7280;
  --line:rgba(17,24,39,.10);
  --soft:rgba(17,24,39,.045);
  --accent:#b97653;
  --accent-dark:#7c4a33;
  --radius:28px;
  --shadow:0 24px 80px rgba(17,24,39,.08);
  --max:1180px;
}
*{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;
  color:var(--ink);
  background:
    radial-gradient(circle at top right,rgba(185,118,83,.12),transparent 34rem),
    linear-gradient(180deg,#fffaf5 0%,var(--bg) 38%,#fff 100%);
  line-height:1.72;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img,video{max-width:100%;display:block}
button,input,textarea{font:inherit}
.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}
.site-header{
  position:sticky;top:0;z-index:20;
  width:min(var(--max),calc(100% - 32px));
  margin:16px auto 0;
  padding:12px;
  border:1px solid var(--line);
  border-radius:24px;
  background:rgba(255,255,255,.78);
  backdrop-filter:blur(18px);
  box-shadow:0 10px 40px rgba(17,24,39,.06);
}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand-mark{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em}
.brand-mark img{width:110px;height:auto}
.brand-mark span{font-size:18px}
.site-nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.site-nav a{padding:10px 14px;border-radius:999px;color:var(--muted);font-size:14px;transition:background .2s ease,color .2s ease,transform .2s ease}
.site-nav a:hover,.site-nav a.active{background:var(--ink);color:#fff;transform:translateY(-1px)}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;color:var(--ink)}
.site-search{margin-top:12px;display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center}
.site-search input{width:100%;border:1px solid var(--line);border-radius:999px;background:#fff;padding:13px 18px;outline:none;transition:border .2s ease,box-shadow .2s ease}
.site-search input:focus{border-color:rgba(185,118,83,.55);box-shadow:0 0 0 4px rgba(185,118,83,.12)}
.site-search button,.primary-btn,.secondary-btn{border:0;border-radius:999px;padding:13px 20px;background:var(--ink);color:#fff;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.site-search button:hover,.primary-btn:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(17,24,39,.18)}
.secondary-btn{background:#fff;color:var(--ink);border:1px solid var(--line)}
.search-note{grid-column:1/-1;margin:0;color:var(--muted);font-size:13px}
main{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.hero{padding:96px 0 70px;display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:center}
.hero-card{border:1px solid var(--line);border-radius:36px;background:rgba(255,255,255,.72);padding:34px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero-card:before{content:"";position:absolute;inset:auto -60px -80px auto;width:280px;height:280px;background:rgba(185,118,83,.15);border-radius:50%;filter:blur(2px)}
.eyebrow{margin:0 0 10px;color:var(--accent-dark);font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
h1,h2,h3,h4,h5,h6{line-height:1.16;margin:0;color:var(--ink);letter-spacing:-.03em}
h1{font-size:clamp(44px,7vw,82px)}
h2{font-size:clamp(32px,4.4vw,56px)}
h3{font-size:22px}
p{color:var(--muted)}
.hero p.lead{font-size:18px;max-width:720px;color:#374151}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.domain-pill{display:inline-flex;align-items:center;gap:8px;margin-top:24px;padding:10px 14px;background:#fff;border:1px solid var(--line);border-radius:999px;color:#374151;font-size:14px}
.hero-visual{min-height:420px;position:relative;border-radius:40px;background:linear-gradient(135deg,#171b22,#3d4857);padding:28px;box-shadow:var(--shadow);overflow:hidden}
.hero-visual:after{content:"";position:absolute;right:-100px;top:-80px;width:320px;height:320px;background:rgba(255,255,255,.08);border-radius:50%}
.visual-title{color:#fff;font-size:32px}.preview-stack{display:grid;gap:16px;position:relative;z-index:1;margin-top:24px}
.mini-video{display:grid;grid-template-columns:112px 1fr;gap:16px;align-items:center;padding:16px;border:1px solid rgba(255,255,255,.12);border-radius:22px;background:rgba(255,255,255,.08);backdrop-filter:blur(14px)}
.mini-video img{border-radius:16px;aspect-ratio:16/10;object-fit:cover}
.mini-video strong{color:#fff;display:block}.mini-video span{color:rgba(255,255,255,.72);font-size:13px}
.section{padding:72px 0;border-top:1px solid var(--line)}
.section-header{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:30px}
.section-header p{max-width:620px;margin:12px 0 0}.narrow{max-width:760px}.center{text-align:center;margin-left:auto;margin-right:auto}
.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}
.info-card,.board-card,.review-card,.stat-card,.inner-card{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 14px 50px rgba(17,24,39,.04);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.info-card:hover,.board-card:hover,.review-card:hover,.stat-card:hover,.inner-card:hover{transform:translateY(-4px);border-color:rgba(185,118,83,.32);box-shadow:0 24px 70px rgba(17,24,39,.08)}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.video-card{background:#fff;border:1px solid var(--line);border-radius:32px;overflow:hidden;box-shadow:0 18px 60px rgba(17,24,39,.06);transition:transform .22s ease,box-shadow .22s ease}
.video-card:hover{transform:translateY(-6px);box-shadow:0 30px 90px rgba(17,24,39,.12)}
.video-card figure{position:relative;margin:0;background:#eee;overflow:hidden}
.video-poster{width:100%;aspect-ratio:16/9;object-fit:cover;background:#f2eee9}
.play-mask{position:absolute;inset:0;margin:auto;width:74px;height:74px;border:1px solid rgba(255,255,255,.65);border-radius:50%;background:rgba(17,24,39,.42);backdrop-filter:blur(10px);opacity:0;transform:scale(.9);transition:opacity .2s ease,transform .2s ease;cursor:pointer}
.video-card:hover .play-mask,.video-card:focus-within .play-mask{opacity:1;transform:scale(1)}
.play-mask span{display:block;width:0;height:0;border-top:13px solid transparent;border-bottom:13px solid transparent;border-left:20px solid #fff;margin:23px 0 0 29px}
.video-card figcaption{position:absolute;left:14px;right:14px;bottom:12px;padding:8px 10px;border-radius:14px;background:rgba(255,255,255,.78);color:#374151;font-size:12px;backdrop-filter:blur(8px)}
.video-body{padding:22px}.video-body h3{margin-bottom:12px}.video-body p{margin:0 0 16px}
.metric-line{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;color:#4b5563;font-size:13px}.metric-line span{padding:7px 10px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.72)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.tag-row span{font-size:12px;color:var(--accent-dark);background:rgba(185,118,83,.10);border:1px solid rgba(185,118,83,.16);border-radius:999px;padding:6px 9px}
.stat-card strong{display:block;font-size:36px;letter-spacing:-.04em}.stat-card span{color:var(--muted);font-size:14px}
.review-card blockquote{margin:0;color:#374151}.review-author{display:flex;align-items:center;gap:12px;margin-top:18px}.avatar{width:42px;height:42px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:700}
.faq-list{display:grid;gap:12px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px 20px}.faq-list summary{cursor:pointer;font-weight:800;color:var(--ink)}.faq-list p{margin:12px 0 0}
.cta-panel{background:linear-gradient(135deg,rgba(17,24,39,.96),rgba(56,65,80,.96));border-radius:40px;padding:44px;color:#fff;display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;overflow:hidden;position:relative}.cta-panel h2,.cta-panel p{color:#fff}.cta-panel p{opacity:.76}.join-form{display:grid;gap:12px}.join-form input,.join-form textarea{width:100%;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.08);color:#fff;border-radius:16px;padding:13px 14px;outline:none}.join-form input::placeholder,.join-form textarea::placeholder{color:rgba(255,255,255,.54)}.join-form button{border:0;border-radius:999px;padding:13px 18px;background:#fff;color:var(--ink);cursor:pointer}
.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}
.breadcrumb{width:min(var(--max),calc(100% - 32px));margin:28px auto 0;color:var(--muted);font-size:14px;display:flex;gap:8px;flex-wrap:wrap}.breadcrumb a{color:var(--accent-dark)}
.page-hero{padding:66px 0 42px}.page-hero h1{font-size:clamp(38px,5.5vw,68px)}.page-hero p{font-size:18px;max-width:760px}.content-list{display:grid;gap:18px}.content-list .inner-card{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center}.rank-number{font-size:42px;font-weight:800;color:rgba(185,118,83,.72)}
.site-footer{width:min(var(--max),calc(100% - 32px));margin:60px auto 24px;border:1px solid var(--line);border-radius:32px;background:#fff;padding:30px;box-shadow:0 14px 50px rgba(17,24,39,.04)}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}.footer-grid nav{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.footer-grid nav a{color:#374151}.footer-bottom{border-top:1px solid var(--line);margin-top:24px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:14px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);opacity:0;pointer-events:none;background:var(--ink);color:#fff;padding:12px 16px;border-radius:999px;box-shadow:0 18px 60px rgba(17,24,39,.24);transition:opacity .2s ease,transform .2s ease;z-index:99}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
@media (max-width: 960px){.hero,.cta-panel{grid-template-columns:1fr}.video-grid,.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}.section-header{display:block}.hero{padding-top:60px}.hero-visual{min-height:360px}}
@media (max-width: 720px){body{background:#fffaf5}.site-header{width:calc(100% - 20px);margin-top:10px;border-radius:20px}.menu-toggle{display:inline-flex}.site-nav{display:none;width:100%;padding-top:10px}.site-nav.open{display:flex}.nav-shell{flex-wrap:wrap}.site-search{grid-template-columns:1fr}.hero{padding:44px 0}.grid-2,.grid-3,.grid-4,.video-grid{grid-template-columns:1fr}.hero-actions{display:grid}.mini-video{grid-template-columns:88px 1fr}.content-list .inner-card{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-grid nav{grid-template-columns:1fr}.site-footer,main{width:calc(100% - 20px)}h1{font-size:40px}.section{padding:50px 0}.cta-panel{padding:28px;border-radius:28px}}