/* 紫垣閣 — design A 墨金典藏 (Pita 2026-10-01): charcoal, gold foil type, thin gold rules */
:root{--bg:#0f0e0c;--bg2:#17150f;--gold:#c9a45c;--gold2:#e8d3a0;--ink:#ece4d2;--mute:#9a907c;--line:rgba(201,164,92,.28)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:"Noto Serif TC",serif;line-height:1.85;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 28px}
.foil{background:linear-gradient(115deg,#a8823c 0%,#f1dea6 28%,#b48b42 52%,#ecd49a 74%,#9c7634 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.en{font-family:"Cormorant Garamond",serif}
/* header */
header{position:sticky;top:0;z-index:20;background:rgba(15,14,12,.88);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.logo{display:flex;align-items:baseline;gap:12px;flex:none}
.logo b{font-size:26px;font-weight:900;letter-spacing:.18em}
.logo small{font-family:"Cormorant Garamond",serif;font-size:13px;letter-spacing:.32em;color:var(--mute)}
nav.main{display:flex;gap:30px;font-size:14px;letter-spacing:.2em;color:var(--mute)}
nav.main a:hover,nav.main a.on{color:var(--gold2)}
.tools{display:flex;align-items:center;gap:18px}
.lang{display:flex;gap:10px;font-size:13px;color:var(--mute)}
.lang a.on{color:var(--gold2)}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--gold2);font-size:18px;width:40px;height:40px;cursor:pointer}
.mnav{display:none}
header.open .mnav{display:flex;flex-direction:column;gap:14px;padding:18px 28px 24px;border-top:1px solid var(--line);font-size:16px;letter-spacing:.2em}
.btn{display:inline-block;border:1px solid var(--gold);color:var(--gold2);padding:11px 26px;letter-spacing:.3em;font-size:14px;transition:.2s;text-align:center}
.btn:hover{background:var(--gold);color:#16120a}
.btn.solid{background:linear-gradient(115deg,#a8823c,#e6cf93 50%,#a8823c);color:#15110a;border:0;font-weight:600}
/* home hero */
.hero{position:relative;min-height:86vh;display:flex;align-items:center;overflow:hidden;border-bottom:1px solid var(--line)}
.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 70% 40%,rgba(201,164,92,.13),transparent 60%)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}
.eyebrow{font-size:13px;letter-spacing:.5em;color:var(--gold)}
.hero h1{font-size:96px;font-weight:900;letter-spacing:.12em;line-height:1.1;margin:18px 0 10px}
.sub{font-size:20px;letter-spacing:.4em;color:var(--gold2)}
.tag{font-size:30px;margin:38px 0 16px;letter-spacing:.12em}
.lead{color:var(--mute);max-width:520px;font-size:16px}
.cta{display:flex;gap:16px;margin-top:40px;flex-wrap:wrap}
.book{justify-self:center;width:300px;height:400px;border:1px solid var(--gold);padding:12px;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.book .in{height:100%;border:1px solid var(--line);background:linear-gradient(160deg,#1d1a14,#0f0d0a);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px}
.book .v{writing-mode:vertical-rl;font-size:44px;font-weight:900;letter-spacing:.3em}
.seal{width:46px;height:46px;background:#9c2a1a;color:#f6e7cf;display:grid;place-items:center;font-size:13px;line-height:1.2;text-align:center;font-weight:600}
.book .yr{font-family:"Cormorant Garamond",serif;letter-spacing:.4em;color:var(--mute);font-size:12px}
/* inner page hero */
.page-hero{padding:90px 0 60px;border-bottom:1px solid var(--line);background:radial-gradient(ellipse at 80% 0%,rgba(201,164,92,.10),transparent 60%)}
.kicker{font-size:13px;letter-spacing:.5em;color:var(--gold)}
.page-hero h1{font-size:46px;letter-spacing:.14em;font-weight:900;line-height:1.35;margin:14px 0 12px}
.page-hero p{color:var(--mute)}
/* sections */
section{padding:100px 0;border-bottom:1px solid var(--line)}
.sh{text-align:center;margin-bottom:56px}
.sh p{font-size:13px;letter-spacing:.5em;color:var(--gold)}
.sh h2{font-size:40px;letter-spacing:.2em;font-weight:600;margin-top:10px}
.sh .rule{width:60px;height:1px;background:var(--gold);margin:22px auto 0}
.verify{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
ol.steps{list-style:none;counter-reset:s}
ol.steps li{counter-increment:s;padding:18px 0 18px 64px;position:relative;border-bottom:1px solid var(--line)}
ol.steps li:before{content:counter(s,cjk-ideographic);position:absolute;left:0;top:14px;font-size:30px;color:var(--gold)}
:lang(en) ol.steps li:before{content:counter(s);font-family:"Cormorant Garamond",serif}
ol.steps li b{display:block;font-size:19px;letter-spacing:.1em}
ol.steps li span{color:var(--mute);font-size:15px}
.quote{font-size:28px;line-height:1.7;letter-spacing:.1em}
.plans{display:grid;grid-template-columns:1fr 1fr;gap:34px}
.plan{border:1px solid var(--line);padding:48px 44px;background:var(--bg2);position:relative}
.plan.feat{border-color:var(--gold)}
.plan .flag{position:absolute;top:-1px;right:30px;background:var(--gold);color:#15110a;font-size:12px;letter-spacing:.3em;padding:6px 14px}
.plan h3{font-size:24px;letter-spacing:.2em}
.plan .price{font-family:"Cormorant Garamond",serif;font-size:58px;margin:18px 0 6px}
.plan .price small{font-size:18px;letter-spacing:.2em;margin-right:6px}
.plan .note{color:var(--mute);font-size:14px;margin-bottom:26px}
.plan ul{list-style:none;margin-bottom:36px}
.plan li{padding:9px 0 9px 26px;position:relative;border-top:1px solid var(--line);font-size:15px}
.plan li:before{content:"◆";position:absolute;left:0;color:var(--gold);font-size:10px;top:15px}
.toc{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.toc div{background:var(--bg);padding:26px 24px}
.toc i{font-style:normal;font-family:"Cormorant Garamond",serif;color:var(--gold);font-size:22px}
.toc b{display:block;font-size:18px;letter-spacing:.15em;margin:6px 0 4px}
.toc span{color:var(--mute);font-size:13px}
.faq{max-width:780px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line);padding:22px 0}
.faq summary{cursor:pointer;font-size:18px;letter-spacing:.1em;list-style:none;display:flex;justify-content:space-between;gap:20px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"＋";color:var(--gold)}
.faq details[open] summary:after{content:"－"}
.faq p{color:var(--mute);margin-top:12px;font-size:15px}
.center{text-align:center}
.cta-band{text-align:center;padding:90px 0}
.cta-band h2{font-size:34px;letter-spacing:.18em;margin-bottom:14px}
.cta-band p{color:var(--mute);margin-bottom:30px}
/* prose (legal, about) */
.prose{max-width:780px}
.prose h2{font-size:24px;letter-spacing:.12em;margin:44px 0 12px;color:var(--gold2)}
.prose h3{font-size:18px;margin:24px 0 6px}
.prose p,.prose li{color:#cfc6b2;font-size:16px;margin-bottom:12px}
.prose ul{padding-left:22px}
.prose a{color:var(--gold2);border-bottom:1px solid var(--line)}
.draft{border:1px dashed var(--gold);padding:14px 18px;color:var(--gold2);font-size:14px;margin-bottom:24px}
/* footer */
footer{padding:56px 0;text-align:center;color:var(--mute);font-size:13px;letter-spacing:.1em}
footer b{display:block;font-size:22px;letter-spacing:.3em;margin-bottom:14px}
footer .fl{display:flex;justify-content:center;gap:24px;margin-bottom:14px;flex-wrap:wrap}
footer .fl a:hover{color:var(--gold2)}
footer p{max-width:720px;margin:0 auto;font-size:12px;line-height:1.8}
@media(max-width:860px){
 nav.main,.tools .lang,.tools .btn{display:none}.menu-btn{display:block}
 .hero .wrap,.verify,.plans{grid-template-columns:1fr}.hero{min-height:auto;padding:70px 0}
 .hero h1{font-size:60px}.tag{font-size:23px}.book{width:230px;height:340px}.book .v{font-size:30px;letter-spacing:.15em}
 section{padding:70px 0}.sh h2{font-size:30px}.toc{grid-template-columns:1fr 1fr}.plan{padding:36px 26px}.quote{font-size:22px}
 .page-hero{padding:60px 0 40px}.page-hero h1{font-size:32px}
}