:root{--bg:#0f0c08;--bg2:#171208;--card:#1d1710;--line:#2d251a;--text:#f3ebdd;--muted:#b3a68f;--accent:#f5b301;--accent2:#f58a07;--ok:#3ddc84;--warn:#ff6b57;--radius:14px;--max:1120px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.75 system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Noto Sans SC",sans-serif}
html.gated body{overflow:hidden}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{max-width:100%;height:auto}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;background:#2a2114;padding:.1em .4em;border-radius:6px;word-break:break-all}
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:#000;padding:8px 12px;z-index:100}
.skip:focus{left:8px}
h1,h2,h3{line-height:1.3;margin:0 0 .5em}
h1{font-size:clamp(1.8rem,4.5vw,2.8rem);letter-spacing:-.01em}
h2{font-size:clamp(1.35rem,3vw,1.8rem);margin-top:0}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.muted{color:var(--muted)}
.small{font-size:.9rem}
.lead{font-size:1.1rem;color:#e6dcc9}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(15,12,8,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:16px;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem;color:var(--text)}
.brand small{color:var(--muted);font-weight:400;font-size:.8rem;margin-left:-4px;display:none}
.brand:hover{text-decoration:none}
.site-nav{margin-left:auto;display:flex;gap:4px}
.site-nav a{color:#e6dcc9;padding:8px 12px;border-radius:8px;font-size:.95rem;white-space:nowrap}
.site-nav a:hover,.site-nav a[aria-current]{background:#2a2114;color:var(--accent);text-decoration:none}
.menu-btn{margin-left:auto;display:none;background:none;border:1px solid var(--line);color:var(--text);font-size:1.3rem;border-radius:8px;padding:2px 10px;cursor:pointer}
@media (max-width:860px){
  .menu-btn{display:block}
  .site-nav{display:none;position:absolute;left:0;right:0;top:60px;background:var(--bg2);border-bottom:1px solid var(--line);flex-direction:column;padding:8px 16px 12px}
  .site-nav.open{display:flex}
  .site-nav a{padding:12px 8px}
}
@media (min-width:640px){.brand small{display:inline}}

/* hero */
.hero{padding:56px 0 36px;background:radial-gradient(1000px 420px at 20% -10%,rgba(245,179,1,.22),transparent 60%),radial-gradient(700px 300px at 90% 0,rgba(245,138,7,.16),transparent 60%)}
.hero .kicker{display:inline-block;background:#2a2114;color:var(--accent);border:1px solid #4a3a14;border-radius:999px;padding:4px 12px;font-size:.85rem;margin-bottom:14px}
.hero h1 span{background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 8px}
.hero .stats{display:flex;flex-wrap:wrap;gap:18px 28px;margin-top:22px;color:var(--muted);font-size:.9rem}
.hero .stats b{display:block;color:var(--text);font-size:1.25rem}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:10px;font-weight:600;border:1px solid transparent;cursor:pointer;font-size:1rem;line-height:1.2}
.btn:hover{text-decoration:none;filter:brightness(1.07)}
.btn.primary{background:linear-gradient(90deg,var(--accent),var(--accent2));color:#1a1205}
.btn.ghost{background:transparent;color:var(--text);border-color:#4a3f2e}
.btn.sm{padding:6px 12px;font-size:.85rem;border-radius:8px}

/* sections & cards */
section{padding:36px 0}
section.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:20px}
.sec-head p{color:var(--muted);max-width:760px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.card h3{margin-bottom:.4em}
.card p:last-child{margin-bottom:0}
.card .ico{font-size:1.6rem;line-height:1;margin-bottom:10px}
.card.link{display:block;color:var(--text);transition:transform .15s,border-color .15s}
.card.link:hover{text-decoration:none;transform:translateY(-2px);border-color:#5a4718}
.card.link .more{color:var(--accent);font-size:.9rem}
.steps{counter-reset:s;display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.steps .card{position:relative;padding-top:26px}
.steps .card::before{counter-increment:s;content:counter(s);position:absolute;top:-14px;left:18px;width:30px;height:30px;border-radius:50%;background:linear-gradient(90deg,var(--accent),var(--accent2));color:#1a1205;font-weight:800;display:grid;place-items:center}
.prose{max-width:820px}
.prose h2{margin-top:1.8em;padding-top:.3em}
.prose h3{margin-top:1.4em}
.prose ul,.prose ol{padding-left:1.4em}
.prose li{margin:.3em 0}
.notice{border-left:4px solid var(--accent);background:#2a2114;padding:14px 16px;border-radius:0 10px 10px 0;margin:18px 0}
.notice.warn{border-color:var(--warn);background:#2b1a16}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags span,.tags a{background:#2a2114;border:1px solid #3d3016;color:#e6dcc9;border-radius:999px;padding:4px 12px;font-size:.9rem}

/* tables */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--card)}
table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:560px}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:600;background:#1a140c;white-space:nowrap}
tr:last-child td{border-bottom:0}
.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.8rem;font-weight:600}
.badge.ok{background:rgba(61,220,132,.15);color:var(--ok)}
.badge.warn{background:rgba(255,107,87,.15);color:var(--warn)}
.compare td:first-child{color:var(--muted);white-space:nowrap}

/* FAQ */
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:0 18px}
.faq-item summary{cursor:pointer;padding:16px 0;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--accent);font-size:1.3rem;line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-item .a{padding:0 0 16px;color:#e6dcc9}
.faq-item .a p:last-child{margin:0}

/* updates */
.timeline{list-style:none;padding:0;margin:0}
.timeline li{display:grid;grid-template-columns:110px 1fr;gap:14px;padding:12px 0;border-bottom:1px solid var(--line)}
.timeline time{color:var(--accent);font-weight:600;font-variant-numeric:tabular-nums}
@media (max-width:560px){.timeline li{grid-template-columns:1fr;gap:2px}}

/* footer */
.site-footer{border-top:1px solid var(--line);background:#0b0906;padding:40px 0 24px;color:var(--muted);font-size:.92rem}
.foot-grid{display:grid;gap:28px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.site-footer h3{color:var(--text);font-size:1rem}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:.35em 0}
.site-footer a{color:#e6dcc9}
.copy{margin-top:28px;padding-top:16px;border-top:1px solid var(--line);font-size:.85rem}

/* age gate */
.agegate{position:fixed;inset:0;z-index:1000;background:rgba(8,6,3,.9);backdrop-filter:blur(8px);display:grid;place-items:center;padding:16px}
.agegate[hidden]{display:none}
.agegate-box{background:var(--card);border:1px solid #4a3a14;border-radius:18px;max-width:460px;padding:30px 26px;text-align:center;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.agegate-logo{width:64px;height:64px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;font-weight:900;color:#1a1205;background:linear-gradient(135deg,var(--accent),var(--accent2));font-size:1.25rem}
.agegate-box h2{margin-bottom:.4em}
.agegate-box p{color:var(--muted);font-size:.95rem}
.agegate-actions{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.breadcrumb{font-size:.88rem;color:var(--muted);padding:18px 0 0}
.breadcrumb a{color:var(--muted)}
.breadcrumb span{margin:0 6px}
.page-head{padding:10px 0 20px}
.page-head p{color:var(--muted);max-width:780px}
.toc{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:0 0 22px}
.toc ol{margin:0;padding-left:1.2em;columns:2;column-gap:24px}
@media (max-width:600px){.toc ol{columns:1}}