:root {
  --teal: #0F766E;
  --mint: #99F6E4;
  --ink: #042F2E;
  --paper: #F0FDFA;
  --card: #ffffff;
  --line: #99F6E4;
  --muted: #134E4A;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: auto; }

body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.75;
}

img, svg { display: block; }

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.mast {
  background: var(--ink);
  color: #F0FDFA;
  border-bottom: 4px solid var(--teal);
}

.mast-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 12px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--mint);
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.logo svg { width: 28px; height: 28px; }

.anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  justify-content: flex-end;
}

.anchors a {
  color: #CCFBF1;
  font-size: 14px;
}

.hero {
  padding: 36px 0 28px;
  border-bottom: 1px solid var(--line);
}

.hero h1 {
  font-size: 30px;
  line-height: 1.35;
  margin-bottom: 14px;
  max-width: 20em;
}

.hero p {
  max-width: 42em;
  margin-bottom: 10px;
  color: var(--muted);
}

.twin {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: 36px 0;
  border: 2px solid var(--ink);
}

.col {
  padding: 28px 24px 32px;
}

.col-can {
  background: #ffffff;
  border-right: 2px solid var(--ink);
}

.col-not {
  background: #042F2E;
  color: #F0FDFA;
}

.col h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.col-can h2 { color: var(--teal); }
.col-not h2 { color: var(--mint); }

.lead {
  margin-bottom: 20px;
  font-size: 15px;
}

.col-not .lead { color: #CCFBF1; }

.icon-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.icon-card {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 12px;
  padding: 14px 12px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.col-not .icon-card {
  background: #064E4B;
  border-color: #0F766E;
  color: #F0FDFA;
}

.icon-card svg {
  width: 32px;
  height: 32px;
  color: var(--teal);
}

.col-not .icon-card svg { color: var(--mint); }

.icon-card h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.icon-card p { font-size: 14px; }

.degree {
  padding: 8px 0 40px;
}

.degree h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.degree .intro {
  margin-bottom: 18px;
  max-width: 48em;
}

.tiles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.tile {
  background: #ffffff;
  border: 1px solid var(--line);
  padding: 22px 20px 24px;
  min-height: 200px;
}

.tile .mark {
  display: inline-block;
  background: var(--teal);
  color: #fff;
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  margin-bottom: 10px;
}

.tile h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--teal);
}

.band {
  background: #ffffff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 36px 0;
}

.band h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.sheet {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  background: var(--paper);
}

.sheet th,
.sheet td {
  border: 1px solid #99F6E4;
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

.sheet th {
  background: var(--teal);
  color: #fff;
  font-weight: 600;
}

.media {
  padding: 40px 0;
}

.media h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.dual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 18px;
}

.dual article {
  background: #ffffff;
  border-left: 6px solid var(--teal);
  padding: 20px 18px;
}

.dual h3 {
  margin-bottom: 8px;
  font-size: 18px;
}

.status {
  padding: 0 0 40px;
}

.status h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.status .box {
  background: #ffffff;
  border: 1px solid var(--line);
  padding: 22px 20px;
}

.status p { margin-bottom: 10px; }

.faq {
  padding: 10px 0 48px;
}

.faq h2 {
  font-size: 24px;
  margin-bottom: 16px;
}

.faq details {
  background: #ffffff;
  border: 1px solid var(--line);
  padding: 12px 16px;
  margin-bottom: 10px;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--teal);
}

.faq details p {
  margin-top: 10px;
}

.foot {
  background: var(--ink);
  color: #CCFBF1;
  padding: 28px 0 32px;
  font-size: 13px;
}

.foot p { margin-bottom: 8px; }

@media (max-width: 860px) {
  .mast-inner { flex-direction: column; align-items: flex-start; }
  .anchors { justify-content: flex-start; }
  .twin, .tiles, .dual { grid-template-columns: 1fr; }
  .col-can { border-right: 0; border-bottom: 2px solid var(--ink); }
  .hero h1 { font-size: 24px; }
}