*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#0b0a12;--panel:#12111c;--panel2:#191826;--line:rgba(255,255,255,.085);
--txt:#ece9f5;--dim:#a09cb5;--mute:#6e6a85;--gold:#f0a63c;--violet:#a78bfa;
--ok:#34d399;--warn:#fbbf24;--bad:#f87171}
html{scroll-behavior:smooth}
body{font:16px/1.78 system-ui,-apple-system,"Microsoft YaHei",sans-serif;background:var(--bg);color:var(--txt);-webkit-font-smoothing:antialiased}
a{color:var(--violet);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1100px;margin:0 auto;padding:0 24px}
.hd{position:sticky;top:0;z-index:50;background:rgba(11,10,18,.93);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hd .bar{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{display:flex;align-items:center;gap:10px;color:var(--txt);font-weight:600;font-size:15.5px}
.brand img{width:28px;height:28px}
.brand:hover{text-decoration:none}
.nav{display:flex;align-items:center;gap:3px}
.nav a{color:var(--dim);font-size:14px;padding:7px 11px;border-radius:7px}
.nav a:hover{color:var(--txt);background:var(--panel);text-decoration:none}
.nav .cta{background:var(--gold);color:#1c1200;font-weight:600;margin-left:9px}
.nav .cta:hover{background:#d9912c;color:#1c1200}
.mbtn{display:none;background:none;border:1px solid var(--line);color:var(--txt);border-radius:7px;padding:5px 10px;font-size:17px;cursor:pointer}
.hero{padding:76px 0 64px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 280px at 15% -5%,rgba(240,166,60,.15),transparent 70%)}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
background-image:linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);background-size:30px 30px}
.hero .in{position:relative;z-index:1}
.hero h1{font-size:39px;line-height:1.34;letter-spacing:-.5px;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero p.lead{font-size:17px;color:var(--dim);max-width:45em;margin-bottom:26px}
.acts{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 27px;border-radius:9px;font-weight:600;font-size:15px;border:1px solid var(--line);color:var(--txt);background:var(--panel)}
.btn:hover{text-decoration:none;border-color:var(--gold);color:var(--gold)}
.btn.p{background:var(--gold);color:#1c1200;border-color:var(--gold)}
.btn.p:hover{background:#d9912c;color:#1c1200}
.btn.xl{padding:16px 40px;font-size:16.5px;border-radius:11px;animation:tbpulse 2.8s ease-out infinite}
@keyframes tbpulse{0%{box-shadow:0 0 0 0 rgba(240,166,60,.42)}70%{box-shadow:0 0 0 15px rgba(240,166,60,0)}100%{box-shadow:0 0 0 0 rgba(240,166,60,0)}}
@media(prefers-reduced-motion:reduce){.btn.xl{animation:none}}
.hero .meta{margin-top:26px;color:var(--mute);font-size:13px;display:flex;flex-wrap:wrap;gap:6px 20px}
.ph{padding:44px 0 34px;border-bottom:1px solid var(--line)}
.ph h1{font-size:32px;line-height:1.36;letter-spacing:-.4px;margin-bottom:12px}
.ph p{color:var(--dim);font-size:16px;max-width:50em}
.sec{padding:60px 0}
.sec.b{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec.tight{padding-top:32px}
.sh{margin-bottom:32px;padding-left:16px;border-left:3px solid var(--gold)}
.sh h2{font-size:24px;letter-spacing:-.3px}
.sh p{color:var(--dim);font-size:15px;margin-top:6px;max-width:54em}
h3{font-size:17px;margin-bottom:9px}
p+p{margin-top:13px}
.sec p{color:var(--dim)}
.sec p b,.sec li b{color:var(--txt)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(258px,1fr));gap:16px}
.cards.four{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:22px}
.card h3{font-size:16px;margin-bottom:8px}
.card p{font-size:14px;color:var(--dim);margin:0}
.card .k{display:inline-block;font-size:12px;color:var(--gold);border:1px solid rgba(240,166,60,.35);border-radius:5px;padding:1px 7px;margin-bottom:10px}
.sec.b .card{background:var(--bg)}
.tblwrap{overflow-x:auto;margin:20px 0}
table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
th,td{text-align:left;padding:11px 13px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--txt);background:var(--panel2);font-weight:600;white-space:nowrap}
td{color:var(--dim)}
tr:last-child td{border-bottom:none}
.mono{font-family:ui-monospace,Consolas,monospace;font-size:13.5px;color:var(--txt);word-break:break-all}
.steps{display:grid;gap:14px;margin:20px 0}
.step{display:flex;gap:15px;background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:17px 19px}
.sec.b .step{background:var(--bg)}
.step .n{flex:0 0 27px;height:27px;border-radius:50%;background:rgba(240,166,60,.13);border:1px solid rgba(240,166,60,.4);color:var(--gold);font-size:13.5px;font-weight:600;display:flex;align-items:center;justify-content:center}
.step h3{font-size:15.5px;margin-bottom:5px}
.step p{font-size:14px;margin:0}
.faq{margin:20px 0}
details{border:1px solid var(--line);border-radius:10px;background:var(--panel2);margin-bottom:10px;overflow:hidden}
.sec.b details{background:var(--bg)}
summary{cursor:pointer;padding:15px 19px;font-weight:600;font-size:15px;list-style:none;position:relative;padding-right:44px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:19px;top:14px;color:var(--gold);font-size:19px;font-weight:400}
details[open] summary::after{content:"\2212"}
details .ans{padding:0 19px 17px;color:var(--dim);font-size:14.5px}
.warn{list-style:none;display:grid;gap:11px;margin:18px 0}
.warn li{padding-left:27px;position:relative;color:var(--dim);font-size:14.5px}
.warn li::before{content:"!";position:absolute;left:0;top:1px;width:17px;height:17px;border-radius:50%;background:var(--warn);color:#1c1200;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;line-height:1}
.chk{list-style:none;display:grid;gap:9px;margin:16px 0}
.chk li{padding-left:24px;position:relative;color:var(--dim);font-size:14.5px}
.chk li::before{content:"\2713";position:absolute;left:0;color:var(--gold)}
.note{border-left:3px solid var(--warn);background:rgba(251,191,36,.07);padding:14px 17px;border-radius:0 9px 9px 0;margin:20px 0;color:var(--dim);font-size:14.5px}
.related{margin:20px 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px}
.related a{display:block;border:1px solid var(--line);border-radius:10px;padding:15px 17px;color:var(--txt);background:var(--panel2)}
.related a:hover{border-color:var(--gold);text-decoration:none}
.sec.b .related a{background:var(--bg)}
.related a b{display:block;font-size:15px;margin-bottom:4px}
.related a span{font-size:13px;color:var(--mute)}
/* ---- 数值判定卡（本站专属组件） ---- */
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;margin:22px 0}
.metric{background:var(--panel2);border:1px solid var(--line);border-top:3px solid var(--mute);border-radius:12px;padding:18px 18px 16px}
.sec.b .metric{background:var(--bg)}
.metric.ok{border-top-color:var(--ok)}
.metric.warn{border-top-color:var(--warn)}
.metric.bad{border-top-color:var(--bad)}
.metric .mv{font-size:26px;font-weight:700;letter-spacing:-.5px;line-height:1.15}
.metric .mv em{font-style:normal;font-size:13.5px;font-weight:500;color:var(--dim);margin-left:3px}
.metric .ml{font-size:12.5px;color:var(--mute);margin:7px 0 9px;letter-spacing:.3px}
.metric p{font-size:13.5px;color:var(--dim);margin:0;line-height:1.68}
.tag{display:inline-block;font-size:12.5px;padding:2px 9px;border-radius:20px;border:1px solid;white-space:nowrap}
.tag.ok{color:var(--ok);border-color:rgba(52,211,153,.36);background:rgba(52,211,153,.1)}
.tag.warn{color:var(--warn);border-color:rgba(251,191,36,.36);background:rgba(251,191,36,.1)}
.tag.bad{color:var(--bad);border-color:rgba(248,113,113,.36);background:rgba(248,113,113,.1)}
/* ---- 规格磁贴 ---- */
.spec{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1px;
background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:22px 0}
.spec>div{background:var(--panel2);padding:16px 18px}
.sec.b .spec>div{background:var(--bg)}
.spec dt{font-size:12.5px;color:var(--mute);margin-bottom:6px;letter-spacing:.3px}
.spec dd{font-size:15px;color:var(--txt);font-weight:600;line-height:1.5}
.spec dd a{font-weight:400;font-size:14px}
/* ---- 导流条 ---- */
.funnel{margin:26px 0 0;padding:26px 30px;border-radius:14px;position:relative;overflow:hidden;
border:1px solid rgba(240,166,60,.3);background:linear-gradient(158deg,rgba(240,166,60,.12),rgba(18,17,28,.94) 50%),var(--panel)}
.funnel::before{content:"";position:absolute;width:380px;height:380px;right:-130px;top:-170px;
background:radial-gradient(circle,rgba(167,139,250,.18),transparent 68%);pointer-events:none}
.funnel>*{position:relative;z-index:1}
.funnel h3{font-size:19px;margin-bottom:8px}
.funnel p{color:var(--dim);font-size:14.5px;margin-bottom:20px;max-width:46em}
.dlhint{color:var(--mute);font-size:13px;margin-top:14px}
code{background:var(--panel2);border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-size:13.5px;color:var(--gold);font-family:Consolas,Menlo,monospace}
.crumbs{padding:16px 0;font-size:13px;color:var(--mute)}
.crumbs a{color:var(--mute)}
.crumbs .sep{margin:0 8px}
.crumbs .cur{color:var(--dim)}
.ft{border-top:1px solid var(--line);background:var(--panel);padding:44px 0 26px;margin-top:56px}
.fgrid{display:grid;grid-template-columns:1.8fr 1fr 1fr;gap:30px}
.ft h4{font-size:13px;letter-spacing:1.5px;color:var(--mute);margin-bottom:13px;font-weight:600}
.ft ul{list-style:none;display:grid;gap:8px}
.ft a{color:var(--dim);font-size:14px}
.ft a:hover{color:var(--gold)}
.ft .desc{color:var(--mute);font-size:13.5px;margin-top:12px;max-width:34em}
.base{border-top:1px solid var(--line);margin-top:30px;padding-top:18px;display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between;font-size:12.5px;color:var(--mute)}
@media(max-width:980px){.fgrid{grid-template-columns:1fr 1fr}}
@media(max-width:820px){.nav{display:none}.mbtn{display:block}.hero h1{font-size:29px}.hero{padding:50px 0 42px}
.nav.open{display:flex;position:absolute;top:62px;left:0;right:0;flex-direction:column;background:var(--panel);padding:14px 20px;border-bottom:1px solid var(--line);align-items:stretch}
.nav.open a{padding:11px}}
@media(max-width:560px){.fgrid{grid-template-columns:1fr}.ph h1{font-size:24px}.wrap{padding:0 18px}
.card{padding:18px}.hero h1{font-size:25px}.funnel{padding:22px 19px}
.btn.xl{width:100%;text-align:center;padding:15px 18px;font-size:16px}
.metrics{grid-template-columns:1fr 1fr;gap:11px}.metric{padding:15px 14px 13px}.metric .mv{font-size:22px}}