:root {
  color-scheme: light dark;
  --ink: #102620;
  --muted: #557067;
  --mint: #0c9a73;
  --mint-deep: #087055;
  --wash: #edf9f4;
  --line: rgba(16, 38, 32, 0.12);
  --surface: rgba(255, 255, 255, 0.82);
  --shadow: 0 24px 70px rgba(9, 63, 48, 0.13);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Noto Sans TC", sans-serif;
  font-size: 17px;
  line-height: 1.72;
  color: var(--ink);
  background:
    radial-gradient(circle at 90% 2%, rgba(32, 201, 151, 0.17), transparent 28rem),
    linear-gradient(145deg, #f8fffc 0%, #eef8f4 52%, #f8fbfa 100%);
}

a { color: var(--mint-deep); text-underline-offset: 3px; }
a:hover { color: var(--mint); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(248, 255, 252, 0.82);
  backdrop-filter: blur(20px) saturate(150%);
}

.nav {
  max-width: 1120px;
  margin: 0 auto;
  min-height: 66px;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 760;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand img { width: 38px; height: 38px; border-radius: 10px; box-shadow: 0 7px 18px rgba(4, 82, 59, .18); }
.nav-links { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; }
.nav-links a { color: var(--muted); font-size: .9rem; font-weight: 650; text-decoration: none; }
.nav-links a[aria-current="page"], .nav-links a:hover { color: var(--mint-deep); }

main { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.hero {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: center;
  gap: clamp(38px, 7vw, 90px);
  padding: clamp(72px, 12vw, 148px) 0 86px;
}

.eyebrow { margin: 0 0 14px; color: var(--mint-deep); font-size: .86rem; font-weight: 780; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.18; letter-spacing: -0.035em; }
h1 { margin: 0; font-size: clamp(3rem, 8vw, 6.8rem); }
h2 { margin: 0 0 18px; font-size: clamp(2rem, 4vw, 3.4rem); }
h3 { margin: 0 0 8px; font-size: 1.15rem; }
.lede { max-width: 690px; margin: 24px 0 0; color: var(--muted); font-size: clamp(1.08rem, 2vw, 1.28rem); }

.hero-mark { position: relative; display: grid; place-items: center; min-height: 360px; }
.hero-mark::before {
  content: "";
  position: absolute;
  width: 330px;
  height: 330px;
  border-radius: 48% 52% 56% 44%;
  background: linear-gradient(135deg, rgba(12, 154, 115, .18), rgba(12, 154, 115, .04));
  filter: blur(1px);
  transform: rotate(-8deg);
}
.hero-mark img { position: relative; width: min(250px, 66vw); border-radius: 28%; box-shadow: var(--shadow); transform: rotate(3deg); }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--ink);
  background: var(--surface);
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 8px 22px rgba(14, 71, 54, .07);
}
.button.primary { color: white; background: var(--mint-deep); border-color: transparent; }

.section { padding: 76px 0; border-top: 1px solid var(--line); }
.section-intro { max-width: 700px; margin-bottom: 34px; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.card {
  padding: 26px;
  border: 1px solid rgba(12, 112, 85, .12);
  border-radius: 26px;
  background: var(--surface);
  box-shadow: 0 16px 45px rgba(14, 71, 54, .06);
}
.card p { margin: 0; color: var(--muted); }
.card .symbol { display: inline-grid; place-items: center; width: 42px; height: 42px; margin-bottom: 20px; border-radius: 14px; color: white; background: var(--mint-deep); font-weight: 780; }

.document { max-width: 820px; padding: 70px 0 100px; }
.document-header { margin-bottom: 48px; }
.document h1 { font-size: clamp(2.6rem, 6vw, 4.8rem); }
.document h2 { margin-top: 50px; font-size: 1.55rem; }
.document h3 { margin-top: 28px; }
.document p, .document li { color: #3f5e54; }
.document ul, .document ol { padding-left: 1.35rem; }
.document .meta { margin-top: 16px; color: var(--muted); font-size: .92rem; }
.notice { margin: 30px 0; padding: 22px 24px; border-left: 4px solid var(--mint); border-radius: 0 18px 18px 0; background: rgba(12, 154, 115, .08); }
.contact-box { display: grid; gap: 8px; margin-top: 24px; padding: 24px; border-radius: 22px; background: var(--wash); }

footer { border-top: 1px solid var(--line); }
.footer-inner { width: min(1120px, calc(100% - 40px)); margin: 0 auto; padding: 32px 0 44px; display: flex; justify-content: space-between; gap: 20px; color: var(--muted); font-size: .88rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }

@media (max-width: 760px) {
  .nav { align-items: flex-start; flex-direction: column; }
  .nav-links { gap: 14px; }
  .hero { grid-template-columns: 1fr; padding-top: 64px; }
  .hero-mark { min-height: 280px; order: -1; }
  .hero-mark::before { width: 270px; height: 270px; }
  .grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; }
}

@media (prefers-color-scheme: dark) {
  :root { --ink: #e9fff6; --muted: #a9c6bb; --wash: #102b23; --line: rgba(209, 255, 239, .13); --surface: rgba(15, 42, 34, .78); }
  body { background: radial-gradient(circle at 90% 2%, rgba(22, 175, 130, .17), transparent 28rem), #071a15; }
  .site-header { background: rgba(7, 26, 21, .82); }
  .document p, .document li { color: #bad2c9; }
}