:root {
  --night: #101417;
  --night-2: #171d20;
  --ink: #f3eee5;
  --muted: #b9b3a7;
  --line: rgba(243, 238, 229, .14);
  --jade: #55b78a;
  --jade-deep: #1f6d57;
  --gold: #d2aa61;
  --red: #d45e4f;
  --blue: #6fa3cc;
  --paper: #efe8db;
  --dark-on-paper: #182024;
  --radius: 8px;
  --sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
  --serif: "Noto Serif TC", "Songti TC", "PMingLiU", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255,255,255,.025) 1px, transparent 1px),
    var(--night);
  background-size: 44px 44px;
  font-family: var(--sans);
  line-height: 1.75;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(16, 20, 23, .82);
  border-bottom: 1px solid var(--line);
}
.nav {
  max-width: 1180px;
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 0 22px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 185px;
}
.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(85,183,138,.55);
  color: var(--jade);
  background: rgba(85,183,138,.08);
  font-family: var(--serif);
}
.brand strong { display: block; font-size: 17px; letter-spacing: 0; }
.brand span span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: .08em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}
.nav-links a { padding: 8px 0; }
.nav-links a:hover { color: var(--ink); }

.line-btn,
.ghost-btn,
.solid-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.line-btn { background: var(--jade); color: #08120e; font-weight: 700; }
.solid-btn { background: var(--ink); color: var(--night); font-weight: 700; }
.ghost-btn { border-color: var(--line); color: var(--ink); }
.line-btn:hover,
.ghost-btn:hover,
.solid-btn:hover { transform: translateY(-2px); }

.menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  border-radius: 50%;
}

.hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: 90px 22px 72px;
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(320px, .55fr);
  gap: 46px;
  align-items: end;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--gold);
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 30px;
  height: 1px;
  background: var(--gold);
}
h1, h2, h3 {
  margin: 0;
  line-height: 1.18;
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0;
}
h1 {
  margin-top: 20px;
  font-size: clamp(46px, 7vw, 98px);
  max-width: 880px;
}
h1 span,
h2 span { color: var(--jade); }
.hero p {
  margin: 22px 0 0;
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
}
.hero-actions {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  background:
    linear-gradient(135deg, rgba(85,183,138,.12), transparent 48%),
    rgba(255,255,255,.03);
}
.hero-card strong {
  display: block;
  color: var(--ink);
  font-size: 42px;
  font-family: var(--serif);
  line-height: 1;
}
.hero-card span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
}

.band { padding: 88px 22px; }
.paper { background: var(--paper); color: var(--dark-on-paper); }
.inner {
  max-width: 1180px;
  margin: 0 auto;
}
.section-top {
  display: grid;
  grid-template-columns: minmax(0, .78fr) minmax(260px, .42fr);
  gap: 38px;
  align-items: end;
  margin-bottom: 34px;
}
.section-top h2 {
  font-size: clamp(34px, 5.2vw, 68px);
}
.section-top p,
.paper p { color: rgba(24,32,36,.7); }
.band:not(.paper) .section-top p,
.band:not(.paper) p { color: var(--muted); }

.grid-2,
.grid-3 {
  display: grid;
  gap: 18px;
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  background: rgba(255,255,255,.03);
}
.paper .card {
  border-color: rgba(24,32,36,.14);
  background: rgba(255,255,255,.52);
}
.card h3 { font-size: 28px; margin-bottom: 10px; }
.card .num {
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
}
.list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}
.list li {
  position: relative;
  padding: 10px 0 10px 24px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.paper .list li { border-top-color: rgba(24,32,36,.1); }
.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 21px;
  width: 7px;
  height: 7px;
  background: var(--jade);
  transform: rotate(45deg);
}

.story {
  display: grid;
  grid-template-columns: minmax(0, .72fr) minmax(280px, .42fr);
  gap: 30px;
  align-items: start;
}
.story-main {
  font-size: 19px;
}
.story-main p {
  margin: 0 0 22px;
}
.side-note {
  position: sticky;
  top: 96px;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--jade);
  color: #08120e;
}
.side-note h3 { font-size: 32px; }
.side-note p { color: rgba(8,18,14,.75); }

.timeline {
  border-left: 1px solid var(--line);
  margin-left: 10px;
}
.paper .timeline { border-color: rgba(24,32,36,.16); }
.time-item {
  position: relative;
  padding: 0 0 30px 28px;
}
.time-item::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gold);
}
.time-item h3 { font-size: 25px; }

.cta {
  padding: 72px 22px;
  background:
    linear-gradient(135deg, rgba(85,183,138,.24), transparent 45%),
    linear-gradient(315deg, rgba(212,94,79,.2), transparent 45%),
    #182024;
  text-align: center;
}
.cta h2 {
  max-width: 760px;
  margin: 0 auto;
  font-size: clamp(36px, 6vw, 76px);
}
.cta p {
  max-width: 620px;
  margin: 18px auto 0;
  color: var(--muted);
}
.footer {
  padding: 54px 22px 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}
.footer-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) repeat(3, minmax(140px, .5fr));
  gap: 28px;
}
.footer h3 { color: var(--ink); font-size: 22px; }
.footer a,
.footer span { display: block; margin-top: 7px; }
.legal {
  max-width: 1180px;
  margin: 34px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

@media (max-width: 920px) {
  .nav-links { display: none; }
  .menu-btn { display: grid; place-items: center; }
  .nav.open .nav-links {
    position: absolute;
    left: 14px;
    right: 14px;
    top: 76px;
    display: grid;
    gap: 4px;
    padding: 18px;
    background: rgba(16,20,23,.98);
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }
  .hero,
  .section-top,
  .grid-2,
  .grid-3,
  .story,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .side-note { position: relative; top: auto; }
}

@media (max-width: 560px) {
  .nav { min-height: 64px; padding: 0 16px; }
  .brand { min-width: auto; }
  .brand > span:not(.brand-mark) { display: none; }
  .hero { padding-top: 48px; }
  h1 { font-size: 38px; line-height: 1.24; }
  .hero p { font-size: 16px; }
  .band { padding: 68px 18px; }
  .card, .hero-card, .side-note { padding: 22px; }
}