:root{--bg:#0b0a08;--bg2:#12100c;--card:#16130e;--line:rgba(201,169,98,.22);--gold:#c9a962;--gold2:#e8cf8f;--ink:#efe9dc;--mut:#a59d8c;--serif:"Cormorant Garamond",Georgia,serif;--sans:Inter,system-ui,sans-serif;--mono:"JetBrains Mono",ui-monospace,monospace}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--gold2)}
code{font:12.5px var(--mono);color:var(--gold2);word-break:break-all}
#dust{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:0;opacity:.55}
main,header,footer{position:relative;z-index:1}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:.01em;margin:0}
h2{font-size:clamp(34px,5vw,54px);line-height:1.05;margin:6px 0 14px}
h3{font-size:22px}
.c{text-align:center}
.eyebrow{font:500 11px var(--sans);letter-spacing:.28em;text-transform:uppercase;color:var(--gold);margin:0}
.sub{color:var(--mut);max-width:640px;margin:0 auto 34px}
.note{color:var(--mut);font-size:13px;margin-top:22px}
section{padding:96px 20px;max-width:1160px;margin:0 auto}

/* top bar */
.top{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:18px;padding:12px 22px;background:rgba(11,10,8,.78);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font:600 15px var(--sans);letter-spacing:.22em}
.nav{display:flex;gap:2px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{color:var(--mut);text-decoration:none;font-size:13.5px;padding:7px 11px;border-radius:999px;white-space:nowrap;transition:color .2s}
.nav a:hover{color:var(--gold2)}
.pill{border:1px solid var(--gold);color:var(--gold2);text-decoration:none;font-size:13px;padding:7px 14px;border-radius:999px;white-space:nowrap}
.pill:hover{background:var(--gold);color:#140f05}
@media (max-width:820px){.top{flex-wrap:wrap;padding:10px 14px;gap:8px}.nav{order:3;flex:1 0 100%;margin:0}.pill{margin-left:auto}}

/* hero */
.hero{max-width:none;min-height:min(92vh,860px);display:flex;align-items:center;padding:110px 6vw 80px;position:relative;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:70% center;transform:scale(1.04);animation:drift 22s ease-in-out infinite alternate}
.hero-bg:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,10,8,.94) 0%,rgba(11,10,8,.72) 38%,rgba(11,10,8,.1) 70%),linear-gradient(0deg,var(--bg) 0%,transparent 30%)}
@keyframes drift{to{transform:scale(1.1) translateX(-1.5%)}}
.hero-in{position:relative;max-width:560px}
.hero h1{font-size:clamp(56px,9vw,112px);line-height:.95;margin:14px 0 6px;background:linear-gradient(180deg,#fff3d1,#c9a962 70%,#8a6d32);-webkit-background-clip:text;background-clip:text;color:transparent}
.tag{font:italic 500 26px var(--serif);color:var(--gold2);margin:0 0 14px}
.lead{color:#cfc7b6;margin:0 0 26px}
.progress .bar{height:6px;border-radius:9px;background:rgba(255,255,255,.08);overflow:hidden}
.progress .bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,#8a6d32,var(--gold2));transition:width 1s}
.progress p{font-size:13px;color:var(--mut);margin:8px 0 26px}
.progress b{color:var(--ink)}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;font:600 14px var(--sans);padding:13px 22px;border-radius:999px;text-decoration:none;cursor:pointer;border:1px solid var(--gold);transition:.2s}
.btn.gold{background:linear-gradient(180deg,#e8cf8f,#b8954a);color:#140f05;border-color:transparent}
.btn.gold:hover{filter:brightness(1.08);box-shadow:0 0 28px rgba(201,169,98,.35)}
.btn.line{background:transparent;color:var(--gold2)}
.btn.line:hover{background:rgba(201,169,98,.12)}
.btn.sm{padding:9px 16px;font-size:13px}

/* tiers */
.tier-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:880px;margin:30px auto 0}
.tier{position:relative;background:linear-gradient(180deg,#17140f,#100e0a);border:1px solid var(--line);border-radius:22px;padding:30px}
.tier.feat{border-color:var(--gold);box-shadow:0 0 60px rgba(201,169,98,.12)}
.ribbon{position:absolute;top:18px;right:18px;font:600 11px var(--sans);letter-spacing:.08em;background:var(--gold);color:#140f05;padding:5px 10px;border-radius:999px}
.tier-k{font:500 12px var(--sans);letter-spacing:.24em;text-transform:uppercase;color:var(--gold);margin:0}
.tier-p{font:600 48px var(--serif);margin:6px 0 10px}
.tier-p small{font:500 14px var(--sans);color:var(--mut)}
.tier ul{list-style:none;padding:0;margin:0 0 16px;color:#d6cfbf}
.tier li{padding:7px 0;border-bottom:1px solid rgba(201,169,98,.1)}
.tier li:before{content:"◆ ";color:var(--gold);font-size:10px}
.fn{margin:0;font-size:12px;color:var(--mut)}
@media (max-width:760px){.tier-grid{grid-template-columns:1fr}}

/* steps */
.steps{padding-top:20px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid3 article{border-top:1px solid var(--line);padding-top:20px}
.grid3 i{font:italic 600 30px var(--serif);color:var(--gold)}
.grid3 p{color:var(--mut);margin:6px 0 0}
@media (max-width:760px){.grid3{grid-template-columns:1fr}}

/* agent */
.two{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
@media (max-width:860px){.two{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px;min-width:0}
.card h3{margin-bottom:12px}
.mt{margin-top:24px}
.params{width:100%;border-collapse:collapse;font-size:13.5px}
.params td{padding:10px 6px;border-bottom:1px solid rgba(201,169,98,.1);vertical-align:top}
.params td:first-child{color:var(--mut);width:34%;white-space:nowrap}
.copy{font:500 11px var(--sans);background:transparent;border:1px solid var(--line);color:var(--gold2);border-radius:999px;padding:3px 9px;cursor:pointer;margin-left:4px}
.copy:hover{border-color:var(--gold)}
.copy.btn{padding:9px 16px;font-size:13px;margin:0}
.code{background:#0d0b08;border:1px solid var(--line);border-radius:14px;padding:16px;font:12.5px/1.65 var(--mono);color:#e6dcc4;white-space:pre-wrap;word-break:break-word;margin:0 0 14px;max-height:280px;overflow:auto}
.tabs{display:flex;gap:6px;margin-bottom:12px}
.tab{font:600 13px var(--sans);background:transparent;color:var(--mut);border:1px solid var(--line);padding:8px 14px;border-radius:999px;cursor:pointer}
.tab.on{background:var(--gold);color:#140f05;border-color:var(--gold)}
.check{display:flex;gap:8px}
.check input{flex:1;min-width:0;background:#0d0b08;border:1px solid var(--line);color:var(--ink);border-radius:999px;padding:10px 16px;font:13px var(--mono)}
.check input:focus{outline:none;border-color:var(--gold)}
.check-out{min-height:22px;color:var(--gold2);font-size:13.5px;margin:10px 0 0}

/* collection */
.models{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-bottom:36px}
.model{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:#000}
.model img{display:block;width:100%;aspect-ratio:1;object-fit:cover;transition:transform .5s}
.model:hover img{transform:scale(1.05)}
.model figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 12px 10px;background:linear-gradient(0deg,rgba(0,0,0,.85),transparent);font-size:12.5px}
.model b{display:block;font:600 17px var(--serif)}
.model .rare{position:absolute;top:10px;left:10px;font:600 10px var(--sans);letter-spacing:.12em;background:var(--gold);color:#140f05;padding:3px 8px;border-radius:999px}
.gallery,.strip{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.tile{border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#000}
.tile img{display:block;width:100%;aspect-ratio:1;object-fit:cover}
.tile small{display:block;padding:7px 10px;font-size:12px;color:var(--mut);background:var(--card)}
.tile small b{color:var(--ink);font-weight:600}
.collection .btn{margin-top:26px}
@media (max-width:900px){.models{grid-template-columns:repeat(2,1fr)}.gallery,.strip{grid-template-columns:repeat(3,1fr)}}

/* token */
.donut-wrap{display:flex;flex-direction:column;align-items:center}
.donut{width:240px;height:240px;border-radius:50%;background:conic-gradient(var(--gold) 0 50%,#3a3226 50% 100%);display:grid;place-items:center;position:relative;box-shadow:0 0 80px rgba(201,169,98,.18)}
.donut:after{content:"";position:absolute;inset:34px;border-radius:50%;background:var(--bg)}
.donut span{position:relative;z-index:1;font:600 46px var(--serif);text-align:center;line-height:1}
.donut small{display:block;font:500 13px var(--sans);color:var(--gold);letter-spacing:.2em}
.legend{list-style:none;padding:0;margin:26px 0 0;font-size:14px}
.legend li{margin:8px 0}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:8px;vertical-align:-1px}
.legend .g{background:var(--gold)}.legend .d{background:#3a3226}
.token .code{margin-top:18px}

/* utility */
.state{font:600 12px var(--sans);letter-spacing:.16em;text-transform:uppercase;margin:0 0 12px}
.state.live{color:#9fd8a5}.state.plan{color:var(--gold)}
.ul{list-style:none;padding:0;margin:0}
.ul li{padding:12px 0;border-bottom:1px solid rgba(201,169,98,.1)}
.ul b{display:block;font-weight:600}
.ul span{color:var(--mut);font-size:14px}

/* roadmap */
.road{list-style:none;padding:0;margin:20px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:r}
.road li{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;position:relative}
.road li:before{counter-increment:r;content:counter(r,upper-roman);position:absolute;top:14px;right:18px;font:italic 600 34px var(--serif);color:rgba(201,169,98,.25)}
.road span{font:500 11px var(--sans);letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}
.road h3{margin:8px 0 6px}
.road p{color:var(--mut);font-size:14px;margin:0}
@media (max-width:900px){.road{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.road{grid-template-columns:1fr}}

/* faq */
.faq{max-width:780px}
details{border-bottom:1px solid var(--line);padding:16px 4px}
summary{cursor:pointer;font:600 20px var(--serif);list-style:none}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";float:right;color:var(--gold)}
details[open] summary:after{content:"–"}
details p{color:var(--mut);margin:10px 0 0}

.foot{text-align:center;padding:60px 20px 80px;border-top:1px solid var(--line);color:var(--mut);font-size:13.5px}
.fname{font:600 15px var(--sans);letter-spacing:.24em;color:var(--ink);margin:8px 0}
.foot .small{font-size:12px;max-width:560px;margin:14px auto 0}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(30px);opacity:0;background:var(--gold);color:#140f05;font:600 13px var(--sans);padding:10px 18px;border-radius:999px;transition:.25s;z-index:50}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s,transform .8s}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}#dust{display:none}}

/* language switch */
.lang{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;flex:none}
.lang button{font:600 12px var(--sans);padding:6px 11px;border:0;background:transparent;color:var(--mut);cursor:pointer;letter-spacing:.04em}
.lang button.on{background:var(--gold);color:#140f05}
body.zh{font-family:Inter,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif}
body.zh h2,body.zh h3,body.zh .tag,body.zh summary,body.zh .model b{font-family:"Cormorant Garamond","Songti SC","Noto Serif SC","STSong",serif;letter-spacing:.04em}
body.zh .tag{font-style:normal}
@media (max-width:820px){.lang{margin-left:auto}.lang+.pill{margin-left:0}}