:root{
  --bg:#FAF6EE; --surface:#FFFFFF; --surface-2:#F2EADC;
  --text:#26201A; --muted:#7C7165; --faint:#A99E8E;
  --line:rgba(38,32,26,.12); --line-2:rgba(38,32,26,.22);
  --accent:#C98A21; --accent-soft:rgba(201,138,33,.14);
  --ink:#1A1611;
  --maxw:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Inter","Noto Sans TC",system-ui,sans-serif;font-size:17px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
h1,h2,h3{font-family:"Noto Serif TC",Georgia,serif;font-weight:900;letter-spacing:.005em;line-height:1.22;margin:0}

header{position:sticky;top:0;z-index:50;background:rgba(250,246,238,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;justify-content:space-between;height:66px;max-width:var(--maxw);margin:0 auto;padding:0 28px}
.brand{font-family:"Noto Serif TC",serif;font-weight:900;font-size:20px;letter-spacing:.01em}
.brand span{color:var(--accent)}
.nav-links{display:flex;gap:32px;align-items:center;font-size:15px;color:var(--muted)}
.nav-links a:hover{color:var(--text)}
.nav-cta{border:1px solid var(--line-2);padding:8px 18px;border-radius:999px;color:var(--text)!important}
.nav-cta:hover{background:var(--text);color:var(--bg)!important;border-color:var(--text)}
.menu-btn{display:none;background:none;border:0;color:var(--text);font-size:24px;cursor:pointer}

.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 30px;border-radius:999px;font-weight:500;font-size:16px;cursor:pointer;border:1px solid transparent;transition:.18s}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{background:#b3781a;border-color:#b3781a}
.btn-ghost{border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{background:var(--surface);border-color:var(--text)}

/* full-bleed cinematic hero (video-ready) */
.hero{position:relative;height:100svh;min-height:560px;display:flex;align-items:center;justify-content:center;text-align:center;background:var(--ink);overflow:hidden}
.hero-media{position:absolute;inset:0;background:radial-gradient(120% 90% at 50% 0%,#2a241c 0%,#1a1611 60%,#100d0a 100%)}
.hero-video{width:100%;height:100%;object-fit:cover;display:block}
.hero::after{content:"";position:absolute;inset:0;background:rgba(16,13,10,.28);z-index:1}
.hero-inner{position:relative;z-index:2;padding:0 24px;color:#FBF8F2;animation:rise 1.1s cubic-bezier(.2,.7,.2,1) both}
.hero-inner h1{color:#FBF8F2;font-size:clamp(34px,6.4vw,72px);line-height:1.14}
.hero-en{font-family:"Inter";font-weight:400;font-size:clamp(13px,1.8vw,17px);letter-spacing:.16em;color:rgba(251,248,242,.62);margin:22px 0 0;text-transform:uppercase}
.scrolldown{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2;width:30px;height:30px;border-right:1.5px solid rgba(251,248,242,.55);border-bottom:1.5px solid rgba(251,248,242,.55);rotate:45deg;animation:bob 2s ease-in-out infinite}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes bob{0%,100%{transform:translate(-50%,0) ;rotate:45deg}50%{transform:translate(-50%,8px);rotate:45deg}}

section{padding:96px 0}
.sec-head{max-width:62ch;margin-bottom:52px}
.sec-head h2{font-size:clamp(28px,4.4vw,46px)}
.sec-head p{color:var(--muted);margin:18px 0 0}

/* bento service grid */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.tile{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:208px;padding:28px;border:1px solid var(--line);border-radius:18px;background:var(--surface);overflow:hidden;transition:.22s}
.tile:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 24px 50px -30px rgba(201,138,33,.55)}
.tile .idx{position:absolute;top:14px;right:24px;font-family:"Noto Serif TC",serif;font-weight:900;font-size:74px;line-height:1;color:var(--surface-2);user-select:none}
.tile h3{position:relative;font-size:23px;font-weight:700}
.tile p{position:relative;margin:10px 0 0;color:var(--muted);font-size:15px;line-height:1.6;max-width:42ch}
.tile .go{position:relative;margin-top:18px;font-size:14.5px;font-weight:500;color:var(--accent);transition:.2s}
.tile:hover .go{letter-spacing:.04em}
.tile.feature{grid-column:span 4;grid-row:span 2;background:var(--ink);border-color:transparent;justify-content:flex-end}
.tile.feature h3{color:#FBF8F2;font-size:30px}
.tile.feature p{color:rgba(251,248,242,.66);font-size:16px;max-width:46ch}
.tile.feature .idx{color:rgba(255,255,255,.06);font-size:120px}
.tile.feature .go{color:#E9B257}
.tile.span2{grid-column:span 2}
.tile.span3{grid-column:span 3}

/* works detail */
.page-hero{padding:72px 0 8px}
.back{display:inline-block;color:var(--muted);font-size:14px;margin-bottom:20px}
.back:hover{color:var(--accent)}
.page-hero h1{font-size:clamp(32px,5vw,52px)}
.page-hero p{color:var(--muted);max-width:60ch;margin:18px 0 0}
.works{display:grid;grid-template-columns:repeat(2,1fr);gap:40px}
.frame{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--surface);box-shadow:0 18px 40px -28px rgba(38,32,26,.45);transition:.25s}
.frame:hover{box-shadow:0 26px 56px -26px rgba(201,138,33,.5);transform:translateY(-4px)}
.bar{display:flex;align-items:center;gap:7px;padding:11px 14px;background:var(--surface-2);border-bottom:1px solid var(--line)}
.dot{width:10px;height:10px;border-radius:50%}
.urlbar{flex:1;margin-left:8px;height:23px;border-radius:7px;background:var(--surface);border:1px solid var(--line);display:flex;align-items:center;padding:0 11px;font-family:"Inter";font-size:11.5px;color:var(--faint);overflow:hidden;white-space:nowrap}
.vp{position:relative;height:248px;overflow:hidden;cursor:row-resize;background:#fff}
.vp img{display:block;width:100%;height:auto}
.vp .hint{position:absolute;left:0;right:0;bottom:0;padding:18px 12px 10px;font-size:12px;color:#fff;text-align:center;background:linear-gradient(transparent,rgba(0,0,0,.45));font-family:"Noto Sans TC";transition:.25s;pointer-events:none}
.vp:hover .hint{opacity:0}
.meta{padding:20px 4px 0}
.meta h3{font-size:20px;font-weight:700}
.meta p{margin:8px 0 0;font-size:14.5px;color:var(--muted);line-height:1.6}
.demo{display:inline-block;margin-top:14px;font-size:14px;color:var(--accent);font-weight:500}
.demo:hover{text-decoration:underline}
.soon{border:1px solid var(--line);border-radius:18px;background:var(--surface);padding:40px}
.soon p{color:var(--muted);margin:0 0 18px}

/* about */
#about{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface-2)}
.about-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:60px;align-items:start}
.about-grid p{color:var(--muted);margin:0 0 18px}
.about-grid p strong{color:var(--text);font-weight:500}
.why{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:28px}
.why h3{font-size:17px;font-weight:700;margin-bottom:16px}
.why ul{margin:0;padding:0;list-style:none}
.why li{position:relative;padding-left:24px;margin-bottom:14px;font-size:15px;color:var(--muted);line-height:1.55}
.why li::before{content:"—";position:absolute;left:0;color:var(--accent)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;align-items:start}
.contact-grid .lead{color:var(--muted)}
.channels{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.channel{display:inline-flex;align-items:center;gap:10px;font-size:15px;color:var(--text);border:1px solid var(--line);padding:13px 17px;border-radius:11px;background:var(--surface)}
a.channel:hover{border-color:var(--accent);color:var(--accent)}
form{display:grid;gap:15px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:15px}
label{font-size:13px;color:var(--muted);display:block;margin-bottom:6px}
input,select,textarea{width:100%;background:var(--surface);border:1px solid var(--line-2);border-radius:11px;padding:12px 15px;color:var(--text);font-family:inherit;font-size:15px;transition:.15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
textarea{min-height:124px;resize:vertical}
.hp{position:absolute;left:-9999px}
.form-msg{font-size:14px;padding:12px 15px;border-radius:11px;display:none}
.form-msg.ok{display:block;background:rgba(120,160,90,.18);color:#4f6e2a;border:1px solid rgba(120,160,90,.4)}
.form-msg.err{display:block;background:rgba(200,90,70,.15);color:#9a3b27;border:1px solid rgba(200,90,70,.35)}

footer{border-top:1px solid var(--line);padding:48px 0;color:var(--muted);font-size:14px}
.foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.foot a{color:var(--muted)}.foot a:hover{color:var(--text)}

.lb{position:fixed;inset:0;z-index:100;background:rgba(38,32,26,.72);backdrop-filter:blur(4px);display:none;align-items:flex-start;justify-content:center;padding:40px 16px;overflow:auto}
.lb.open{display:flex}
.lb img{max-width:920px;width:100%;height:auto;border-radius:12px;border:1px solid var(--line-2);box-shadow:0 30px 80px -30px rgba(0,0,0,.6)}
.lb-close{position:fixed;top:18px;right:24px;font-size:32px;color:#fff;cursor:pointer;line-height:1;background:none;border:0}

@media (prefers-reduced-motion: reduce){.hero-inner,.scrolldown{animation:none!important}}

@media(max-width:860px){
  .bento{grid-template-columns:1fr}
  .tile,.tile.feature,.tile.span2,.tile.span3{grid-column:auto;grid-row:auto}
}
@media(max-width:760px){
  .nav-links{display:none}.nav-links.show{display:flex;position:absolute;top:66px;left:0;right:0;flex-direction:column;background:var(--bg);border-bottom:1px solid var(--line);padding:18px 28px;gap:18px}
  .menu-btn{display:block}
  .works,.about-grid,.contact-grid{grid-template-columns:1fr}
  .row{grid-template-columns:1fr}
  section{padding:64px 0}
}