:root{
  --ink:#1C1A17; --crimson:#8B1F2C; --crimson-dk:#5E141D; --crimson-dp:#3A0C13;
  --gold:#C8941A; --gold-soft:#E0B24C; --gold-line:#B8860B;
  --cream:#FBF6EC; --cream-2:#F4ECDC; --card:#FFFFFF; --border:#E4DBC9;
  --text:#2A2620; --muted:#7A7368; --green:#437A22; --red:#B23B3B;
  --serif:"Noto Serif TC","Noto Serif SC",Georgia,serif;
  --serif-en:"Cormorant Garamond",Georgia,serif;
  --sans:"Noto Sans TC","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --maxw:1180px; --r:14px;
}
html[data-lang="hans"]{ --serif:"Noto Serif SC","Noto Serif TC",Georgia,serif; --sans:"Noto Sans SC","Noto Sans TC",Arial,sans-serif; }
html[data-lang="en"]  { --serif:"Cormorant Garamond",Georgia,serif; }

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--text);background:var(--cream);line-height:1.65;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--serif);font-weight:700;line-height:1.2;letter-spacing:.01em}
img{max-width:100%;display:block}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4em;font-family:var(--sans);font-weight:500;font-size:16px;padding:.85em 1.6em;border-radius:999px;cursor:pointer;transition:.25s ease;border:1.5px solid transparent;white-space:nowrap}
.btn-sm{font-size:14px;padding:.6em 1.2em}
.btn-lg{font-size:18px;padding:1em 2.2em}
.btn-primary{background:var(--crimson);color:#fff;box-shadow:0 6px 18px rgba(139,31,44,.28)}
.btn-primary:hover{background:var(--crimson-dk);transform:translateY(-2px);box-shadow:0 10px 26px rgba(139,31,44,.36)}
.btn-ghost{color:#F4ECDC;border-color:rgba(224,178,76,.55)}
.btn-ghost:hover{background:rgba(224,178,76,.12);border-color:var(--gold-soft)}
.btn-outline{background:transparent;color:var(--crimson);border-color:var(--crimson)}
.btn-outline:hover{background:var(--crimson);color:#fff}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(251,246,236,.82);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:.3s}
.site-header.scrolled{border-color:var(--border);box-shadow:0 2px 20px rgba(0,0,0,.05)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--crimson)}
.logo{width:34px;height:34px;color:var(--gold-line)}
.brand-name{display:flex;flex-direction:column;line-height:1.05}
.bn-zh{font-family:var(--serif);font-weight:900;font-size:19px;color:var(--crimson);letter-spacing:.06em}
.bn-en{font-size:11px;letter-spacing:.28em;color:var(--muted);text-transform:uppercase}
.nav{display:flex;gap:26px;margin-left:auto;font-size:15px;color:var(--text)}
.nav a{position:relative;padding:4px 0;color:var(--text);opacity:.85;transition:.2s}
.nav a:hover{opacity:1;color:var(--crimson)}
.header-actions{display:flex;align-items:center;gap:14px}
.enter-app{font-size:14px;color:var(--text);opacity:.8;white-space:nowrap;padding:4px 2px;border-bottom:1px solid transparent;transition:.2s}
.enter-app:hover{opacity:1;color:var(--crimson);border-bottom-color:var(--gold-line)}
.lang-switch{display:flex;border:1px solid var(--border);border-radius:999px;overflow:hidden;background:#fff}
.lang-switch button{border:0;background:transparent;font-family:var(--sans);font-size:13px;padding:6px 11px;cursor:pointer;color:var(--muted);transition:.2s}
.lang-switch button.active{background:var(--crimson);color:#fff}

/* mobile nav */
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.burger span{width:22px;height:2px;background:var(--crimson);border-radius:2px;transition:.25s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobnav{display:none;flex-direction:column;gap:2px;padding:12px 24px 22px;background:var(--cream);border-bottom:1px solid var(--border)}
.mobnav.open{display:flex}
.mobnav a{padding:12px 4px;font-size:16px;color:var(--text);border-bottom:1px solid var(--border)}
.mobnav a.btn{margin-top:12px;border-bottom:0;justify-content:center;color:#fff}

/* hero */
.hero{position:relative;min-height:92vh;display:flex;align-items:center;overflow:hidden;color:#fff}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.04)}
.hero-overlay{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 45%,rgba(58,12,19,.15) 0%,rgba(28,26,23,.55) 60%,rgba(20,10,10,.85) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;padding:120px 24px}
.eyebrow{font-size:14px;letter-spacing:.32em;text-transform:uppercase;color:var(--gold-soft);font-weight:500;margin-bottom:26px}
.hero h1{font-size:clamp(34px,6.2vw,76px);color:#fff;text-shadow:0 3px 30px rgba(0,0,0,.5);margin-bottom:26px;text-wrap:balance}
.hero-sub{max-width:640px;margin:0 auto 40px;font-size:clamp(16px,1.8vw,19px);color:#EDE4D3;line-height:1.75;font-weight:300}
.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-note{margin-top:26px;font-size:14px;letter-spacing:.12em;color:rgba(244,236,220,.92)}

/* trust bar */
.trustbar{background:var(--crimson-dp);color:#fff}
.trustbar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding:38px 24px}
.tb-item{text-align:center;padding:6px 8px;position:relative}
.tb-item:not(:last-child)::after{content:"";position:absolute;right:0;top:20%;height:60%;width:1px;background:rgba(224,178,76,.25)}
.tb-num{display:block;font-family:var(--serif);font-size:clamp(26px,3.4vw,38px);font-weight:700;color:var(--gold-soft);line-height:1}
.tb-check{font-size:clamp(24px,3vw,32px)}
.tb-unit{font-size:.55em;margin-left:2px}
.tb-lbl{display:block;font-size:13px;color:#E4D6C4;margin-top:8px;letter-spacing:.06em}

/* sections */
.section{padding:clamp(72px,9vw,120px) 0}
.section-alt{background:var(--cream-2)}
.sec-eyebrow{font-size:13px;letter-spacing:.28em;text-transform:uppercase;color:var(--gold-line);font-weight:600;margin-bottom:14px}
.sec-title{font-size:clamp(28px,4vw,44px);color:var(--crimson);margin-bottom:18px}
.sec-lead{max-width:640px;font-size:17px;color:var(--muted);line-height:1.75;margin-bottom:48px}

/* comparison */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:12px}
.compare-col{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:36px 32px;position:relative}
.compare-human{opacity:.92}
.compare-human h3{color:var(--muted);font-size:22px;margin-bottom:22px}
.compare-us{border-color:var(--gold-line);box-shadow:0 14px 40px rgba(139,31,44,.1)}
.compare-us h3{color:var(--crimson);font-size:22px;margin-bottom:22px}
.cmp-badge{position:absolute;top:-13px;left:32px;background:var(--gold);color:#fff;font-size:12px;font-weight:700;letter-spacing:.14em;padding:5px 14px;border-radius:999px}
.compare-col ul{list-style:none;display:flex;flex-direction:column;gap:14px}
.compare-col li{position:relative;padding-left:30px;font-size:15.5px;line-height:1.6}
.compare-human li::before{content:"✕";position:absolute;left:0;top:1px;color:#B99;font-weight:700}
.compare-us li::before{content:"✓";position:absolute;left:0;top:1px;color:var(--green);font-weight:700}
.edge-foot{margin-top:26px;font-size:13.5px;color:var(--muted);line-height:1.7;max-width:820px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.steps-4{grid-template-columns:repeat(4,1fr)}
.step{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:38px 30px}
.step-num{font-family:var(--serif-en);font-size:44px;font-weight:700;color:var(--gold-soft);line-height:1;display:block;margin-bottom:16px}
.step h3{font-size:20px;color:var(--crimson);margin-bottom:12px}
.step p{font-size:15px;color:var(--text);opacity:.85;line-height:1.7}

/* sample gallery */
.samples{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:32px}
.sample-fig{margin:0}
.sample-thumb{display:block;width:100%;padding:0;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:#fff;cursor:zoom-in;box-shadow:0 14px 40px rgba(58,12,19,.10);transition:.25s ease}
.sample-thumb:hover{transform:translateY(-4px);box-shadow:0 22px 52px rgba(58,12,19,.18)}
.sample-thumb:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
.sample-thumb img{width:100%;height:auto;display:block}
.sample-fig figcaption{margin-top:12px;font-size:13.5px;color:var(--muted);line-height:1.5;text-align:center}
.sample-features{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:12px 28px;margin-top:8px}
.sample-features li{font-size:16px;color:var(--text);padding-left:2px}
.sample-features li::first-letter{color:var(--gold-line)}
.sample-pdf{margin-top:22px;text-align:center}
.sample-pdf a{display:inline-block;font-size:15px;font-weight:600;color:var(--gold-line);text-decoration:underline;text-underline-offset:3px}
.sample-pdf a:hover{opacity:.82}
.sample-pdf a:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:4px}

/* best-for line on pricing cards */
.pc-best{font-size:13.5px;color:var(--crimson);background:rgba(139,31,44,.06);border-radius:8px;padding:8px 12px;margin-bottom:20px;line-height:1.5}

/* book vs vip comparison table */
.vs-table{border:1px solid var(--border);border-radius:var(--r);overflow:hidden;background:var(--card)}
.vs-row{display:grid;grid-template-columns:1fr 1.4fr 1.4fr;gap:0}
.vs-row>span{padding:16px 20px;font-size:14.5px;line-height:1.55;border-bottom:1px solid var(--border)}
.vs-row>span:not(:last-child){border-right:1px solid var(--border)}
.vs-row:last-child>span{border-bottom:0}
.vs-head>span{font-family:var(--serif);font-weight:700;color:var(--crimson);background:var(--cream-2);font-size:15.5px}
.vs-row>span:first-child{font-weight:500;color:var(--muted)}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:32px;background:rgba(20,10,10,.82);backdrop-filter:blur(4px)}
.lightbox[hidden]{display:none}
body.lb-open{overflow:hidden}
.lb-fig{margin:0;max-width:min(92vw,520px);text-align:center}
.lb-fig img{width:100%;height:auto;border-radius:12px;box-shadow:0 30px 80px rgba(0,0,0,.5);background:#fff}
.lb-fig figcaption{margin-top:14px;font-size:14px;color:#EEDFD0}
.lb-close{position:absolute;top:20px;right:24px;width:44px;height:44px;border-radius:999px;border:1px solid rgba(224,178,76,.5);background:rgba(0,0,0,.3);color:#F4ECDC;font-size:20px;cursor:pointer;transition:.2s}
.lb-close:hover{background:var(--crimson)}
.lb-close:focus-visible{outline:3px solid var(--gold);outline-offset:2px}

/* pricing */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:8px}
.price-card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:38px 32px;display:flex;flex-direction:column;position:relative}
.price-card h3{font-size:21px;color:var(--crimson);margin-bottom:14px}
.price{margin-bottom:6px;display:flex;align-items:baseline;gap:6px}
.price-num{font-family:var(--serif-en);font-size:44px;font-weight:700;color:var(--ink)}
.price-per{font-size:15px;color:var(--muted)}
.price-desc{font-size:14px;color:var(--muted);margin-bottom:24px}
.price-card ul{list-style:none;display:flex;flex-direction:column;gap:12px;margin-bottom:28px;flex:1}
.price-card li{position:relative;padding-left:26px;font-size:15px;line-height:1.5}
.price-card li::before{content:"✦";position:absolute;left:0;top:0;color:var(--gold-line)}
.price-featured{border:1.5px solid var(--gold-line);background:linear-gradient(180deg,#fff,#FCF7EC);box-shadow:0 22px 55px rgba(139,31,44,.14);transform:translateY(-8px)}
.pc-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--gold);color:#fff;font-size:12px;font-weight:700;letter-spacing:.14em;padding:5px 16px;border-radius:999px;white-space:nowrap}
.price-foot{text-align:center;margin-top:34px;font-size:14px;color:var(--muted);letter-spacing:.04em}

/* trust badges */
.trust-badges{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tbadge{text-align:center;padding:22px 14px;background:var(--cream-2);border-radius:12px;border:1px solid var(--border)}
.tbadge b{display:block;font-family:var(--serif);font-size:16px;color:var(--crimson);margin-bottom:6px}
.tbadge span{font-size:13px;color:var(--muted);line-height:1.5}
.section-alt .tbadge{background:#fff}

/* cta band */
.cta-band{background:linear-gradient(135deg,var(--crimson-dk),var(--crimson-dp));color:#fff;padding:clamp(64px,8vw,96px) 0;text-align:center}
.cta-band h2{font-size:clamp(28px,4vw,42px);color:#fff;margin-bottom:14px}
.cta-band p{font-size:18px;color:#EEDFD0;margin-bottom:34px}

/* footer */
.site-footer{background:var(--ink);color:#CFC7B9;padding:60px 0 30px}
.footer-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .brand-name{font-size:18px;color:#fff}
.footer-brand .bn-zh{color:var(--gold-soft);font-size:18px}
.footer-brand p{font-size:14px;color:var(--muted);margin-top:10px}
.foot-addr{font-size:12.5px!important;color:#8A8175!important}
.footer-links{display:flex;gap:28px;flex-wrap:wrap;align-items:flex-start}
.footer-links a{font-size:14px;color:#CFC7B9;transition:.2s}
.footer-links a:hover{color:var(--gold-soft)}
.footer-legal{padding-top:24px}
.footer-legal p{font-size:12.5px;color:#8A8175;line-height:1.6}

/* language visibility handled via JS text swap; keep en serif smaller */
html[data-lang="en"] .bn-zh{font-size:17px}

/* reveal animation — only hides when JS marks the page ready, so no-JS/blocked-IO still shows content */
.js-reveal .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.js-reveal .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.js-reveal .reveal{opacity:1;transform:none;transition:none}}

/* responsive */
@media(max-width:900px){
  .nav{display:none}
  .compare,.steps,.steps-4,.pricing{grid-template-columns:1fr}
  .samples{grid-template-columns:repeat(2,1fr);gap:16px}
  .trust-badges{grid-template-columns:repeat(2,1fr)}
  .sample-features{grid-template-columns:1fr}
  .price-featured{transform:none}
  .trustbar-grid{grid-template-columns:repeat(2,1fr);gap:26px 12px}
  .tb-item:nth-child(2)::after{display:none}
  .vs-row{grid-template-columns:1fr 1fr 1fr}
  .vs-row>span{padding:12px 12px;font-size:13px}
}
@media(max-width:900px){
  .burger{display:flex}
  .header-cta,.enter-app{display:none}
}
@media(max-width:560px){
  .brand-name .bn-en{display:none}
  .trustbar-grid{grid-template-columns:repeat(2,1fr)}
  .tb-item::after{display:none}
  .hero-content{padding:96px 20px}
  .samples{grid-template-columns:repeat(2,1fr);gap:14px;max-width:420px;margin-inline:auto}
}