:root {
  --bg: #0b1210;
  --bg-2: #121c18;
  --ink: #eef5f0;
  --muted: #9bb0a4;
  --line: rgba(238, 245, 240, 0.12);
  --accent: #3dcf8e;
  --accent-2: #c8f56a;
  --warm: #d4a574;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --font: "Instrument Sans", "Noto Sans TC", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.04;
  z-index: 50;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 6vw;
  backdrop-filter: blur(14px);
  background: rgba(11, 18, 16, 0.72);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.site-header.scrolled { border-bottom-color: var(--line); }

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
}
.brand-mark {
  width: 2.4rem; height: 2.4rem;
  display: grid; place-items: center;
  border-radius: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #08110d;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 0.95rem; font-weight: 600; }
.brand-text small { color: var(--muted); font-size: 0.72rem; }

.nav { display: flex; gap: 1.25rem; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.2s ease;
}
.nav a:hover { color: var(--ink); }

.lang-btn {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  cursor: pointer;
  font: inherit;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}
.lang-btn:hover { border-color: var(--accent); color: var(--accent); }

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  align-items: end;
  padding: 8rem 6vw 5rem;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 75% 20%, rgba(61, 207, 142, 0.22), transparent 60%),
    radial-gradient(ellipse 50% 40% at 15% 80%, rgba(200, 245, 106, 0.12), transparent 55%),
    linear-gradient(180deg, #0b1210 0%, #0e1a15 45%, #0b1210 100%);
  animation: glow 10s ease-in-out infinite alternate;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 40%;
  background: linear-gradient(transparent, var(--bg));
}
@keyframes glow {
  from { filter: saturate(1) brightness(1); }
  to { filter: saturate(1.15) brightness(1.08); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 48rem;
  animation: rise 0.9s ease both;
}
@keyframes rise {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: none; }
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  margin-bottom: 1.2rem;
}
h1 { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 1.25rem; }
.h1-cn {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  line-height: 1.08;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.lead {
  max-width: 34rem;
  color: var(--muted);
  font-size: 1.08rem;
  margin-bottom: 2rem;
}
.cta-row { display: flex; flex-wrap: wrap; gap: 0.85rem; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary {
  color: #08110d;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.btn.ghost {
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn.ghost:hover { border-color: var(--accent); }

.section {
  padding: 5.5rem 6vw;
  border-top: 1px solid var(--line);
}
.section.alt { background: var(--bg-2); }
.section-head {
  max-width: 40rem;
  margin-bottom: 2.5rem;
  animation: rise 0.8s ease both;
}
.section-head h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.section-head p { color: var(--muted); }

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.about-grid article {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}
.about-grid h3 { margin-bottom: 0.6rem; font-size: 1.15rem; }
.about-grid p { color: var(--muted); }

.service-list { list-style: none; display: grid; gap: 0; }
.service-list li {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}
.service-list li:last-child { border-bottom: 1px solid var(--line); }
.service-list span {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.08em;
}
.service-list h3 { margin-bottom: 0.35rem; }
.service-list p { color: var(--muted); }

.info-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem 2rem;
}
.info-list > div {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}
.info-list dt {
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}
.info-list dd { font-size: 1.05rem; font-weight: 500; }

.statement-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}
.statement-card {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}
.statement-card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.15rem;
}
.statement-card p { color: var(--muted); }

.store-btn { margin-top: 0.25rem; }
.store-note {
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.mail-stack {
  display: grid;
  gap: 1.5rem;
  margin-top: 0.5rem;
}
.mail-label {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}
.contact .mail {
  display: inline-block;
  color: var(--accent-2);
  font-size: clamp(1.15rem, 2.6vw, 1.8rem);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 245, 106, 0.35);
}
.contact .mail.secondary {
  font-size: clamp(1.05rem, 2.2vw, 1.45rem);
  color: var(--ink);
  border-bottom-color: var(--line);
}
.contact .mail:hover { color: var(--accent); }
.contact .note {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.policy-meta {
  color: var(--accent);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.policy h3 {
  margin: 1.2rem 0 0.5rem;
  font-size: 1.02rem;
  color: var(--ink);
}

.site-footer {
  padding: 2rem 6vw 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
  align-items: center;
}
.footer-right {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
}
.footer-link {
  color: var(--accent-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 245, 106, 0.35);
  font-weight: 500;
}
.footer-link:hover { color: var(--accent); }

.policy-page {
  padding: 7rem 6vw 4rem;
  max-width: 48rem;
  margin: 0 auto;
}
.policy .eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  margin-bottom: 1rem;
}
.policy h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}
.policy-intro,
.policy p,
.policy li {
  color: var(--muted);
  margin-bottom: 0.9rem;
}
.policy h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.2rem;
  color: var(--ink);
}
.policy ul {
  padding-left: 1.2rem;
  margin-bottom: 1rem;
}
.policy a {
  color: var(--accent-2);
  text-decoration: none;
}
.policy a:hover { color: var(--accent); }

@media (max-width: 860px) {
  .nav { display: none; }
  .about-grid,
  .statement-grid,
  .info-list { grid-template-columns: 1fr; }
  .hero { align-items: center; padding-top: 7rem; }
}