/* 主站 landing（公開、深色深邃版）。獨立於 app.css（登入後後台）。 */
@font-face{font-family:"Geist";font-weight:300;font-display:swap;src:url("/static/fonts/geist-300.woff2") format("woff2");}
@font-face{font-family:"Geist";font-weight:400;font-display:swap;src:url("/static/fonts/geist-400.woff2") format("woff2");}
@font-face{font-family:"Geist";font-weight:500;font-display:swap;src:url("/static/fonts/geist-500.woff2") format("woff2");}
@font-face{font-family:"Geist";font-weight:600;font-display:swap;src:url("/static/fonts/geist-600.woff2") format("woff2");}
:root{--bg:#0b0b0d;--bg2:#141417;--card:#16161a;--ink:#f0eee9;--soft:#a6a39c;--muted:#6f6d67;
--line:rgba(240,238,233,.10);--line2:rgba(240,238,233,.20);--accent:#c7a463;
--sans:"Geist","Helvetica Neue","Segoe UI","PingFang TC","Microsoft JhengHei",sans-serif;
--mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;--ease:cubic-bezier(.16,1,.3,1);}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:1040px;margin:0 auto;padding:0 28px;}
.nav{position:sticky;top:0;z-index:50;backdrop-filter:saturate(160%) blur(20px);background:rgba(11,11,13,.72);border-bottom:1px solid var(--line);}
.nav .row{max-width:1040px;margin:0 auto;padding:14px 28px;display:flex;justify-content:space-between;align-items:center;}
.brand{font-size:16px;font-weight:600;letter-spacing:.01em;display:inline-flex;align-items:center;}
.brand-logo{height:26px;width:auto;display:block;}
.nav .links{display:flex;gap:26px;align-items:center;}
.nav .links a{font-size:14px;color:var(--soft);}.nav .links a:hover{color:var(--ink);}
.btn{font-family:var(--sans);font-size:14px;font-weight:500;cursor:pointer;border-radius:980px;padding:9px 18px;border:1px solid transparent;transition:opacity .2s,transform .12s var(--ease),background .2s,border-color .2s,color .2s;}
.btn-solid{background:var(--ink);color:#0b0b0d;}.btn-solid:hover{opacity:.86;}.btn-solid:active{transform:translateY(1px);}
.btn-ghost{border-color:var(--line2);color:var(--ink);}.btn-ghost:hover{border-color:var(--ink);}
.hero{position:relative;text-align:center;padding:108px 0 28px;}
.hero:before{content:"";position:absolute;inset:0 0 auto 0;height:520px;pointer-events:none;
  background:radial-gradient(60% 70% at 50% 0%,rgba(199,164,99,.10),transparent 70%);}
.eyebrow{position:relative;font-size:12px;font-weight:500;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);margin:0 0 24px;}
.h1{position:relative;font-size:64px;line-height:1.05;font-weight:600;letter-spacing:-.03em;margin:0 auto;max-width:18ch;}
.sub{position:relative;font-size:21px;color:var(--soft);margin:26px auto 36px;max-width:42ch;}
.cta{position:relative;display:flex;gap:14px;justify-content:center;}.cta .btn{font-size:16px;padding:13px 28px;}
.ba-sec{padding:40px 0 110px;}
.ba{position:relative;max-width:980px;margin:0 auto;border-radius:24px;overflow:hidden;border:1px solid var(--line);
  box-shadow:0 50px 100px -40px rgba(0,0,0,.8);user-select:none;touch-action:none;aspect-ratio:3/2;background:#000;}
.ba .layer{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:15px;letter-spacing:.12em;color:rgba(255,255,255,.85);font-weight:500;background-size:cover;background-position:center;}
.ba .after{background:radial-gradient(130% 130% at 32% 24%,#e8c896,#bf8e5e 52%,#5e3f26);}
.ba .before{background:radial-gradient(130% 130% at 32% 24%,#9aa3ab,#69737c 52%,#333b43);clip-path:inset(0 50% 0 0);}
.ba .handle{position:absolute;top:0;bottom:0;left:50%;width:2px;background:rgba(255,255,255,.92);transform:translateX(-1px);}
.ba .grip{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:48px;height:48px;border-radius:50%;
  background:rgba(255,255,255,.96);box-shadow:0 4px 20px rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;cursor:ew-resize;}
.ba .grip:before{content:"\2039 \203A";font-size:17px;letter-spacing:2px;color:#1d1d1f;}
.ba .tag{position:absolute;top:16px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:#fff;background:rgba(0,0,0,.45);padding:5px 10px;border-radius:6px;}
.ba .tag.b{left:16px;}.ba .tag.a{right:16px;}
.ba-hint{text-align:center;color:var(--muted);font-size:14px;margin:20px 0 0;}
.feat{padding:80px 0;border-top:1px solid var(--line);}
.feat .row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.feat.alt .text{order:2;}
.feat .k{font-size:12px;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin:0 0 16px;}
.feat h2{font-size:40px;line-height:1.1;font-weight:600;letter-spacing:-.02em;margin:0 0 18px;}
.feat p{font-size:18px;color:var(--soft);margin:0;max-width:44ch;}
.shot{aspect-ratio:4/3;border-radius:20px;border:1px solid var(--line);
  background:linear-gradient(140deg,#18181c,#202026);display:flex;align-items:center;justify-content:center;}
.shot span{font-size:13px;letter-spacing:.1em;color:var(--muted);}
.reveal.in{opacity:1;transform:none;}
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
.js .reveal.in{opacity:1;transform:none;}
.price{padding:96px 0;background:var(--bg2);text-align:center;border-top:1px solid var(--line);}
.price h2{font-size:44px;font-weight:600;letter-spacing:-.02em;margin:0 0 14px;}
.price .lede{font-size:19px;color:var(--soft);margin:0 0 48px;}
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;max-width:1080px;margin:0 auto;text-align:left;}
.plan{position:relative;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px 26px;display:flex;flex-direction:column;}
.plan.feature{border-color:var(--line2);box-shadow:0 0 0 1px rgba(199,164,99,.22) inset;}
.tagpop{position:absolute;top:-11px;right:18px;background:var(--accent);color:#1a1206;
  font-size:11px;font-weight:600;letter-spacing:.04em;padding:3px 11px;border-radius:999px;}
.plan .pk{font-size:12px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);}
.plan .pp{font-family:var(--mono);font-size:32px;font-weight:500;letter-spacing:-.02em;margin:12px 0 2px;}
.plan .pp small{font-family:var(--sans);font-size:13px;color:var(--muted);font-weight:400;}
.plan .per{font-family:var(--mono);font-size:12px;color:var(--soft);margin:0 0 4px;}
.plan .pset{font-size:13px;color:var(--muted);margin:0;}
.plan ul{list-style:none;padding:0;margin:16px 0 22px;flex:1;}
.plan li{font-size:14px;color:var(--soft);padding:7px 0;border-top:1px solid var(--line);}
.plan .btn{display:block;text-align:center;}
.price-note{font-family:var(--mono);font-size:13px;color:var(--muted);margin:28px 0 0;}
.foot{padding:44px 0;color:var(--muted);font-size:13px;border-top:1px solid var(--line);}
.foot .row{display:flex;justify-content:space-between;max-width:1040px;margin:0 auto;padding:0 28px;}
@media(max-width:980px){.plans{grid-template-columns:1fr 1fr;max-width:560px;}}
@media(max-width:760px){.h1{font-size:40px;}.sub{font-size:18px;}
.feat .row{grid-template-columns:1fr;gap:28px;}.feat.alt .text{order:0;}
.plans{grid-template-columns:1fr;max-width:360px;gap:16px;}}