:root{
  --deep: #060b1a;
  --navy: #0a1330;
  --panel: #0d1838;
  --panel-2: #101d44;
  --line: #22335e;
  --line-soft: #182652;
  --ink: #eef2fb;
  --ink-dim: #98a3c4;
  --ink-faint: #5c6890;
  --brass: #c9a86a;
  --brass-dim: #8d774f;
  --radius: 2px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--deep);
  color:var(--ink);
  font-family:'Inter',sans-serif;
  line-height:1.6;
  overflow-x:hidden;
}
::selection{background:var(--brass);color:var(--deep);}

.grain{
  position:fixed;inset:0;pointer-events:none;z-index:1;
  background-image:
    repeating-linear-gradient(0deg, rgba(201,168,106,0.02) 0px, transparent 1px, transparent 2px),
    repeating-linear-gradient(90deg, rgba(201,168,106,0.015) 0px, transparent 1px, transparent 3px);
  mix-blend-mode:screen;
}

.mono{font-family:'JetBrains Mono',monospace;}
.eyebrow{
  font-family:'JetBrains Mono',monospace;
  font-size:11px;
  letter-spacing:0.18em;
  text-transform:uppercase;
  color:var(--brass);
  display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:'';width:22px;height:1px;background:var(--brass-dim);display:inline-block;}

h1,h2,h3{font-family:'Fraunces',serif;font-weight:500;letter-spacing:-0.01em;}

a{color:inherit;text-decoration:none;}

.wrap{max-width:1120px;margin:0 auto;padding:0 40px;}

/* NAV */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(6,11,26,0.72);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
nav .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.brand-mark{
  display:flex;align-items:center;gap:10px;
  font-family:'Fraunces',serif;font-size:18px;font-weight:500;
}
.brand-mark .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--brass);
  box-shadow:0 0 0 3px rgba(201,168,106,0.15);
}
.nav-links{display:flex;gap:36px;align-items:center;}
.nav-links a{
  font-size:13px;color:var(--ink-dim);
  letter-spacing:0.02em;
  transition:color .25s ease;
  position:relative;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a.cta{
  color:var(--brass);border:1px solid var(--brass-dim);
  padding:8px 16px;border-radius:var(--radius);
}
.nav-links a.cta:hover{background:rgba(201,168,106,0.08);}
.nav-toggle{display:none;}

/* HERO */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;flex-direction:column;justify-content:center;
  padding-top:72px;
  overflow:hidden;
}
.contour-bg{
  position:absolute;inset:0;z-index:0;opacity:0.5;
}
.hero .wrap{position:relative;z-index:2;width:100%;}
.hero-coords{
  display:flex;gap:32px;flex-wrap:wrap;
  font-family:'JetBrains Mono',monospace;
  font-size:11px;color:var(--ink-faint);
  letter-spacing:0.05em;
  margin-bottom:28px;
}
.hero-coords span b{color:var(--brass-dim);font-weight:500;}
.hero h1{
  font-size:clamp(44px,7vw,92px);
  line-height:1.02;
  color:var(--ink);
  max-width:16ch;
}
.hero h1 em{
  font-style:italic;color:var(--brass);
  font-weight:400;
}
.hero-sub{
  margin-top:28px;
  max-width:520px;
  color:var(--ink-dim);
  font-size:17px;
  line-height:1.7;
}
.hero-actions{
  margin-top:44px;
  display:flex;gap:16px;align-items:center;flex-wrap:wrap;
}
.btn{
  font-family:'Inter',sans-serif;
  font-size:14px;font-weight:500;
  padding:14px 28px;
  border-radius:var(--radius);
  border:1px solid var(--brass);
  color:var(--deep);
  background:var(--brass);
  cursor:pointer;
  transition:all .25s ease;
  display:inline-flex;align-items:center;gap:8px;
}
.btn:hover{background:transparent;color:var(--brass);}
.btn-ghost{
  background:transparent;color:var(--ink-dim);border:1px solid var(--line);
}
.btn-ghost:hover{color:var(--ink);border-color:var(--ink-faint);}

.scroll-cue{
  position:absolute;bottom:36px;left:40px;
  display:flex;align-items:center;gap:12px;
  font-family:'JetBrains Mono',monospace;
  font-size:10px;color:var(--ink-faint);
  letter-spacing:0.15em;text-transform:uppercase;
  z-index:2;
}
.scroll-cue .line{width:1px;height:36px;background:linear-gradient(var(--brass-dim),transparent);}

/* SECTION SHARED */
section{position:relative;padding:140px 0;}
.section-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  margin-bottom:64px;gap:24px;flex-wrap:wrap;
  border-bottom:1px solid var(--line-soft);
  padding-bottom:28px;
}
.section-head h2{font-size:clamp(28px,4vw,42px);color:var(--ink);}
.section-head p{color:var(--ink-dim);font-size:14px;max-width:320px;}

/* WORK */
.work{background:var(--navy);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.work-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line-soft);}
.work-card{
  display:block;
  background:var(--navy);
  padding:44px;
  position:relative;
  transition:background .3s ease;
  cursor:pointer;
  overflow:hidden;
}
.work-card:hover{background:var(--panel);}
.work-depth{
  font-family:'JetBrains Mono',monospace;
  font-size:11px;color:var(--brass-dim);
  letter-spacing:0.05em;
  margin-bottom:24px;
  display:block;
}
.work-thumb{
  height:180px;border-radius:var(--radius);
  background:
    linear-gradient(135deg, var(--panel-2) 25%, transparent 25%) -10px 0/20px 20px,
    linear-gradient(225deg, var(--panel-2) 25%, transparent 25%) -10px 0/20px 20px,
    var(--panel);
  border:1px solid var(--line);
  margin-bottom:28px;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-faint);font-size:12px;font-family:'JetBrains Mono',monospace;
}
.work-card h3{font-size:24px;color:var(--ink);margin-bottom:10px;}
.work-card p{color:var(--ink-dim);font-size:14px;margin-bottom:20px;max-width:38ch;}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;}
.tag{
  font-family:'JetBrains Mono',monospace;font-size:10px;
  color:var(--ink-faint);border:1px solid var(--line);
  padding:5px 10px;border-radius:var(--radius);
  letter-spacing:0.03em;
}
.work-arrow{
  position:absolute;top:44px;right:44px;
  color:var(--brass);opacity:0;transform:translate(-6px,6px);
  transition:all .3s ease;font-size:20px;
}
.work-card:hover .work-arrow{opacity:1;transform:translate(0,0);}

/* WORK 子分類標題 */
.work-subhead{
  display:flex;align-items:center;gap:12px;
  margin:0 0 24px;
}
.work-subhead h3{
  font-size:20px;color:var(--ink);font-weight:500;
}
.work-subhead-badge{
  font-family:'JetBrains Mono',monospace;font-size:10px;
  color:var(--brass);border:1px solid var(--brass-dim);
  padding:4px 10px;border-radius:var(--radius);
  letter-spacing:0.08em;text-transform:uppercase;
}

/* 產品導流 CTA */
.product-cta{
  display:flex;justify-content:space-between;align-items:center;
  gap:24px;flex-wrap:wrap;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:4px;
  padding:28px 32px;
  margin-bottom:56px;
}
.product-cta-text{max-width:520px;}
.product-cta-text p{color:var(--ink-dim);font-size:14px;margin-top:8px;}
.product-cta .btn{white-space:nowrap;}

.work-grid-enterprise{
  border-color: var(--brass-dim) !important;
}
.about-grid{
  display:grid;grid-template-columns:0.8fr 1.2fr;gap:80px;align-items:start;
}
.portrait{
  aspect-ratio:4/5;
  background:var(--panel);
  border:1px solid var(--line);
  position:relative;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-faint);font-size:12px;font-family:'JetBrains Mono',monospace;
}
.portrait::before{
  content:'';position:absolute;inset:14px;
  border:1px solid var(--line-soft);
}
.about-text p{color:var(--ink-dim);font-size:16px;margin-bottom:20px;max-width:56ch;}
.about-text p b{color:var(--ink);font-weight:500;}
.skills{margin-top:40px;display:flex;flex-wrap:wrap;gap:10px;}
.skill-pill{
  font-size:13px;color:var(--ink);
  border:1px solid var(--line);
  padding:9px 18px;border-radius:var(--radius);
  background:var(--panel);
}

/* SERVICES */
.services{background:var(--navy);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line-soft);}
.service-card{
  background:var(--navy);
  padding:44px;
  transition:background .3s ease;
}
.service-card:hover{background:var(--panel);}
.service-card-wide{grid-column:1 / -1;}
.service-num{
  font-family:'JetBrains Mono',monospace;
  font-size:11px;color:var(--brass-dim);
  letter-spacing:0.05em;
  margin-bottom:20px;
  display:block;
}
.service-card h3{font-size:22px;color:var(--ink);margin-bottom:18px;}
.service-list{list-style:none;}
.service-list li{
  color:var(--ink-dim);font-size:14px;
  padding-left:20px;position:relative;
  margin-bottom:10px;line-height:1.6;
}
.service-list li::before{
  content:'—';position:absolute;left:0;color:var(--brass-dim);
}
.service-list li:last-child{margin-bottom:0;}

/* CONTACT */
.contact{
  background:var(--panel);
  border-top:1px solid var(--line-soft);
  text-align:left;
}
.contact-inner{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:40px;}
.contact h2{font-size:clamp(36px,6vw,64px);max-width:14ch;line-height:1.05;}
.contact-links{display:flex;flex-direction:column;gap:14px;align-items:flex-end;}
.contact-links a{
  font-family:'JetBrains Mono',monospace;font-size:13px;
  color:var(--ink-dim);
  display:flex;align-items:center;gap:10px;
  transition:color .2s ease;
}
.contact-links a:hover{color:var(--brass);}

footer{
  border-top:1px solid var(--line-soft);
  padding:28px 0;
  display:flex;justify-content:space-between;
  font-size:12px;color:var(--ink-faint);font-family:'JetBrains Mono',monospace;
  flex-wrap:wrap;gap:12px;
}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

@media (max-width:860px){
  .wrap{padding:0 24px;}
  .nav-links{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    background:var(--deep);
    flex-direction:column;justify-content:center;
    transform:translateY(-100%);opacity:0;
    transition:all .3s ease;
    pointer-events:none;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav-toggle{
    display:block;background:none;border:none;color:var(--ink);
    font-size:22px;cursor:pointer;
  }
  .work-grid{grid-template-columns:1fr;}
  .about-grid{grid-template-columns:1fr;gap:40px;}
  .portrait{max-width:260px;}
  .service-grid{grid-template-columns:1fr;}
  .contact-inner{flex-direction:column;align-items:flex-start;}
  .contact-links{align-items:flex-start;}
  section{padding:90px 0;}
}