:root {
  --black: #0a0a0a;
  --card: #141414;
  --line: #242424;
  --gold: #c9a96e;
  --gold-2: #e8d5a3;
  --gold-d: #a88a50;
  --ink: #f0ece4;
  --muted: #9a948a;
  --font-d: "Playfair Display", Georgia, serif;
  --font-b: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--black);
  color: var(--ink);
  font-family: var(--font-b);
  font-weight: 300;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 22px; }
.gold { color: var(--gold); }
.tag {
  color: var(--gold);
  letter-spacing: 0.22em;
  font-size: 12px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
h2 {
  font-family: var(--font-d);
  font-weight: 500;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
}
.desc { color: var(--muted); margin-top: 12px; max-width: 640px; }

.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 20;
  padding: 16px 0;
  transition: background .3s, border-color .3s, padding .3s;
}
.nav.on {
  background: rgba(10,10,10,.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  padding: 10px 0;
}
.nav-in { max-width: 1120px; margin: 0 auto; padding: 0 22px; display: flex; align-items: center; gap: 18px; }
.logo { font-family: var(--font-d); font-size: 20px; letter-spacing: 0.04em; }
.logo i { color: var(--gold); font-style: normal; margin-right: 6px; }
.links { display: flex; gap: 22px; margin-left: auto; }
.links a { font-size: 13px; letter-spacing: 0.08em; color: #c8c2b8; }
.links a:hover { color: var(--gold); }
.nav-cta, .btn {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 4px; cursor: pointer; border: none;
  font-family: inherit; letter-spacing: 0.08em;
}
.nav-cta {
  padding: 8px 16px; border: 1px solid var(--gold); color: var(--gold); font-size: 13px;
}
.btn {
  padding: 14px 28px; font-size: 13px; font-weight: 500;
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold-2), var(--gold-d));
  color: #111;
}
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid rgba(240,236,228,.28); }
.btn-full { width: 100%; }
.menu { display: none; background: none; border: 0; width: 36px; height: 28px; flex-direction: column; justify-content: center; gap: 5px; }
.menu span { display: block; height: 1px; background: var(--ink); }

.hero {
  min-height: 100vh;
  padding: 120px 0 64px;
  background:
    radial-gradient(70% 50% at 80% 20%, rgba(201,169,110,.16), transparent 60%),
    radial-gradient(50% 40% at 10% 80%, rgba(201,169,110,.08), transparent 55%),
    #0a0a0a;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
.kicker { color: var(--gold); letter-spacing: 0.18em; font-size: 12px; margin-bottom: 14px; }
.hero h1 { font-family: var(--font-d); font-weight: 500; font-size: clamp(36px, 5vw, 58px); line-height: 1.12; }
.hero-sub { margin: 18px 0 22px; color: #cfc8bc; max-width: 520px; }
.hooks { display: grid; gap: 10px; margin-bottom: 22px; }
.hook {
  border: 1px solid var(--line);
  background: rgba(20,20,20,.7);
  padding: 12px 14px;
  border-radius: 8px;
}
.hook b { display: block; color: var(--gold-2); font-weight: 500; font-size: 13px; letter-spacing: 0.06em; }
.hook span { color: #d8d2c8; font-size: 14px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }

.price-list { display: grid; gap: 10px; }
.price-card {
  display: grid; grid-template-columns: 72px 1fr; gap: 12px; align-items: center;
  background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px;
}
.thumb {
  width: 72px; height: 72px; object-fit: cover; border-radius: 8px;
  border: 1px solid var(--gold); background: #111;
}
.shot {
  display: block; width: calc(100% + 44px); height: 220px; object-fit: cover;
  margin: -22px -22px 16px; border-radius: 12px 12px 0 0; background: #111;
}
.price-card strong { display: block; font-weight: 500; }
.price-card em { font-style: normal; color: var(--muted); font-size: 12px; }
.offer { color: var(--gold-2); font-size: 13px; }

section { padding: 84px 0; }
.center { text-align: center; }
.center .desc { margin-left: auto; margin-right: auto; }

.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 32px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 22px;
}
.badge {
  display: inline-block; font-size: 11px; letter-spacing: 0.08em;
  color: #111; background: var(--gold); border-radius: 999px; padding: 2px 8px; margin-bottom: 10px;
}
.card .brand { color: var(--gold); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; }
.card h3 { font-family: var(--font-d); font-size: 24px; font-weight: 500; margin: 4px 0 8px; }
.spec { color: var(--muted); font-size: 13px; }
.nums { display: flex; gap: 16px; margin: 14px 0; font-size: 14px; }
.nums b { color: var(--gold-2); font-weight: 500; }
.card a.more { color: var(--gold); font-size: 13px; letter-spacing: 0.06em; }

.brands { padding-top: 20px; }
.brand-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 28px; }
.brand-item {
  border: 1px solid var(--line); border-radius: 10px; padding: 22px 16px; text-align: center;
  background: #101010;
}
.brand-item strong { display: block; font-family: var(--font-d); font-size: 20px; font-weight: 500; }
.brand-item span { color: var(--muted); font-size: 12px; }

.feats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 28px; }
.feat { border: 1px solid var(--line); border-radius: 12px; padding: 20px 16px; background: #101010; }
.feat h3 { font-size: 16px; font-weight: 500; margin: 8px 0; }
.feat p { color: var(--muted); font-size: 13px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 28px; }
.step { border-top: 1px solid var(--gold); padding-top: 16px; }
.step i { font-family: var(--font-d); font-style: normal; color: var(--gold); font-size: 28px; }
.step h3 { font-weight: 500; margin: 6px 0; }
.step p { color: var(--muted); font-size: 14px; }

.quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 28px; }
.quote { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.stars { color: var(--gold); letter-spacing: 2px; }
.quote p { margin: 10px 0 16px; }
.quote small { color: var(--muted); }

/* 滾動顯示動畫 */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }

.sell-box { display: grid; grid-template-columns: .9fr 1.1fr; gap: 36px; align-items: start; }
.benefits { list-style: none; margin-top: 18px; }
.benefits li { padding: 6px 0 6px 18px; position: relative; color: #ddd6cc; }
.benefits li::before { content: "✓"; position: absolute; left: 0; color: var(--gold); }
form { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 22px; display: grid; gap: 12px; }
label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
input, select, textarea {
  width: 100%; background: #0e0e0e; color: var(--ink); border: 1px solid #2a2a2a;
  border-radius: 6px; padding: 11px 12px; font: inherit;
}
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.note { font-size: 12px; color: var(--muted); text-align: center; }

.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 500; }
.faq p { color: var(--muted); margin-top: 8px; }

footer { border-top: 1px solid var(--line); padding: 36px 0 24px; color: var(--muted); font-size: 13px; }
.foot { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.foot a { display: block; color: #c8c2b8; margin-top: 6px; }

.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.72);
  display: none; place-items: center; z-index: 40; padding: 20px;
}
.modal.on { display: grid; }
.modal-card {
  width: min(420px, 100%); background: #161616; border: 1px solid var(--gold);
  border-radius: 14px; padding: 28px; text-align: center;
}
.modal-card h3 { font-family: var(--font-d); font-size: 28px; margin: 8px 0; }

@media (max-width: 900px) {
  .links { display: none; position: absolute; top: 58px; left: 0; right: 0; background: #111; flex-direction: column; padding: 16px 22px 20px; border-bottom: 1px solid var(--line); }
  .links.open { display: flex; }
  .menu { display: flex; margin-left: auto; }
  .hero-grid, .cards, .brand-row, .feats, .steps, .quotes, .sell-box, .row2 { grid-template-columns: 1fr; }
  .nav-cta { display: none; }
}