:root{
  --bg:#f7f5f0;
  --panel:#ffffff;
  --ink:#171717;
  --muted:#6e6a62;
  --line:rgba(23,23,23,.10);
  --soft:rgba(23,23,23,.04);
  --accent:#7c674d;
  --accent-2:#0f3443;
  --radius:28px;
  --shadow:0 24px 80px rgba(20,20,20,.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;background:radial-gradient(circle at 20% 0%,#ffffff 0,#f7f5f0 42%,#f4f1ea 100%);color:var(--ink);line-height:1.75;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
.container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(247,245,240,.82);backdrop-filter:blur(20px);border-bottom:1px solid var(--line)}
.navbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.08em}
.logo-mark{width:42px;height:42px;border-radius:16px;background:linear-gradient(135deg,#111,#7c674d);box-shadow:inset 0 0 0 1px rgba(255,255,255,.25);position:relative}
.logo-mark:after{content:"";position:absolute;inset:12px;border:2px solid rgba(255,255,255,.76);border-left-color:transparent;border-radius:50%}
.nav-links{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:center}
.nav-links a{font-size:14px;color:#393630;padding:10px 14px;border:1px solid transparent;border-radius:999px;transition:.25s ease}
.nav-links a:hover,.nav-links a.active{background:rgba(255,255,255,.72);border-color:var(--line);transform:translateY(-1px)}
.nav-cta{padding:10px 16px;border-radius:999px;background:#171717;color:#fff;font-size:14px;box-shadow:0 14px 30px rgba(23,23,23,.18)}
.search-wrap{border-bottom:1px solid var(--line);background:rgba(255,255,255,.34)}
.search-form{display:flex;gap:12px;padding:18px 0}.search-form input{flex:1;border:1px solid var(--line);border-radius:999px;padding:14px 18px;background:rgba(255,255,255,.72);outline:none;font-size:15px}.search-form button{border:0;border-radius:999px;background:#171717;color:#fff;padding:0 22px;cursor:pointer}.search-note{font-size:13px;color:var(--muted);padding:0 0 16px;display:none}.search-note.show{display:block}
.hero{padding:96px 0 66px}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:46px;align-items:center}.eyebrow{font-size:13px;letter-spacing:.2em;color:var(--accent);text-transform:uppercase;font-weight:700}.hero h1,.page-hero h1{font-size:clamp(42px,7vw,82px);line-height:1.05;letter-spacing:-.07em;margin:18px 0 24px}.lead{font-size:clamp(17px,2vw,22px);color:#514d45;max-width:760px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:14px 20px;border:1px solid var(--line);transition:.25s ease}.btn.primary{background:#171717;color:#fff;border-color:#171717}.btn:hover{transform:translateY(-2px);box-shadow:0 18px 44px rgba(23,23,23,.12)}.domain-pill{margin-top:24px;display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:8px 14px;color:var(--muted);font-size:13px;background:rgba(255,255,255,.52)}
.hero-card{border-radius:40px;background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.8);box-shadow:var(--shadow);padding:18px;transform:rotate(1deg)}.hero-card figure{margin:0;position:relative;overflow:hidden;border-radius:30px}.hero-card figcaption{font-size:13px;color:var(--muted);padding:14px 4px 2px}.play-float{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:74px;height:74px;border-radius:50%;background:rgba(255,255,255,.92);display:grid;place-items:center;box-shadow:0 20px 60px rgba(0,0,0,.18)}.play-float:after{content:"";border-left:18px solid #171717;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}
.section{padding:72px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.section h2{font-size:clamp(28px,4vw,48px);line-height:1.12;letter-spacing:-.045em;margin:0}.section p.section-desc{color:var(--muted);max-width:620px;margin:10px 0 0}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 14px 44px rgba(23,23,23,.04);transition:.25s ease}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.card h3{font-size:22px;margin:0 0 10px;letter-spacing:-.02em}.card p{margin:0;color:var(--muted)}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.video-card{background:#fff;border:1px solid var(--line);border-radius:30px;overflow:hidden;box-shadow:0 16px 48px rgba(23,23,23,.06);transition:.25s ease}.video-card:hover{transform:translateY(-5px)}.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#ddd}.video-thumb img{width:100%;height:100%;object-fit:cover;transition:.45s ease}.video-card:hover img{transform:scale(1.04)}.video-play{opacity:0;position:absolute;inset:auto 18px 18px auto;width:54px;height:54px;border-radius:50%;background:rgba(255,255,255,.92);display:grid;place-items:center;transition:.25s ease}.video-card:hover .video-play{opacity:1}.video-play:after{content:"";border-left:13px solid #171717;border-top:9px solid transparent;border-bottom:9px solid transparent;margin-left:3px}.video-body{padding:20px}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.tag{font-size:12px;background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:4px 9px;color:#555}.video-card h3{font-size:20px;line-height:1.35;margin:0 0 12px}.metrics{display:flex;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.board-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.board-card{min-height:160px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(135deg,rgba(255,255,255,.86),rgba(255,255,255,.46));border:1px solid var(--line);border-radius:28px;padding:22px}.board-card strong{font-size:20px}.board-card span{font-size:13px;color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stat{padding:28px;border-radius:28px;background:#171717;color:#fff}.stat b{font-size:36px;display:block;letter-spacing:-.04em}.stat span{color:rgba(255,255,255,.72);font-size:13px}.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.quote{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px}.quote p{margin:0 0 16px}.quote small{color:var(--muted)}
.faq{display:grid;gap:12px}.faq details{background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:22px;padding:18px 20px}.faq summary{cursor:pointer;font-weight:700}.faq p{color:var(--muted);margin:12px 0 0}.join-panel{display:grid;grid-template-columns:1fr .9fr;gap:24px;background:#171717;color:#fff;border-radius:40px;padding:40px}.join-panel p{color:rgba(255,255,255,.72)}.join-form{display:grid;gap:12px}.join-form input,.join-form textarea{width:100%;border:1px solid rgba(255,255,255,.16);border-radius:18px;background:rgba(255,255,255,.08);color:#fff;padding:14px 16px;outline:none}.join-form button{border:0;border-radius:999px;background:#fff;color:#171717;padding:14px 18px;font-weight:700;cursor:pointer}
.breadcrumb{padding:28px 0 0;color:var(--muted);font-size:14px}.page-hero{padding:62px 0 42px}.content-list{display:grid;gap:16px}.content-row{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center}.content-row p{color:var(--muted);margin:.4rem 0 0}.rank-badge{width:44px;height:44px;border-radius:16px;background:#171717;color:#fff;display:grid;place-items:center;font-weight:800}.notice{background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:28px;padding:24px;color:var(--muted)}
.site-footer{margin-top:72px;border-top:1px solid var(--line);background:rgba(255,255,255,.44)}.footer-grid{display:grid;grid-template-columns:1.2fr repeat(3,.7fr);gap:24px;padding:46px 0}.footer-grid h3,.footer-grid h4{margin-top:0}.footer-grid a,.footer-grid p,.footer-grid li{color:var(--muted);font-size:14px}.footer-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}.footer-bottom{border-top:1px solid var(--line);padding:20px 0;color:var(--muted);font-size:13px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media (max-width:980px){.hero-grid,.join-panel{grid-template-columns:1fr}.card-grid,.video-grid,.quote-grid{grid-template-columns:1fr 1fr}.board-grid,.stats{grid-template-columns:1fr 1fr}.nav-cta{display:none}.navbar{height:auto;padding:16px 0;align-items:flex-start}.nav-links{justify-content:flex-start}.content-row{grid-template-columns:1fr}}
@media (max-width:640px){.container{width:min(100% - 28px,var(--max))}.hero{padding:58px 0 36px}.card-grid,.video-grid,.quote-grid,.board-grid,.stats{grid-template-columns:1fr}.search-form{flex-direction:column}.search-form button{padding:12px 16px}.footer-grid{grid-template-columns:1fr}.section{padding:50px 0}.hero-card{border-radius:30px}.join-panel{padding:26px;border-radius:30px}}