:root {
  --teal: #0f4c5c;
  --deep: #08343f;
  --orange: #f26b4b;
  --cream: #f7f0e3;
  --mint: #7cc7a8;
  --ink: #1f2933;
  --muted: #66747b;
  --line: #dbe7e3;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(124, 199, 168, 0.3), transparent 26rem),
    radial-gradient(circle at 90% 15%, rgba(242, 107, 75, 0.17), transparent 28rem),
    var(--cream);
}

.portal {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 54px 0 70px;
}

.portal-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 42px;
}

.portal-head img {
  width: 72px;
  height: 72px;
  border-radius: 18px;
}

.portal-head h1 {
  margin: 0 0 6px;
  color: var(--teal);
  font-size: 36px;
}

.portal-head p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.end-card {
  position: relative;
  overflow: hidden;
  min-height: 360px;
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink);
  box-shadow: 0 22px 55px rgba(8, 52, 63, 0.08);
  text-decoration: none;
}

.end-card::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -90px;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  background: var(--accent-soft);
}

.end-card:nth-child(1) {
  --accent: var(--teal);
  --accent-soft: rgba(15, 76, 92, 0.11);
}

.end-card:nth-child(2) {
  --accent: var(--orange);
  --accent-soft: rgba(242, 107, 75, 0.15);
}

.end-card:nth-child(3) {
  --accent: #4f9d7f;
  --accent-soft: rgba(124, 199, 168, 0.2);
}

.end-card:nth-child(4) {
  --accent: #2c6f83;
  --accent-soft: rgba(44, 111, 131, 0.15);
}

.end-number {
  display: inline-block;
  border-radius: 999px;
  padding: 7px 11px;
  background: var(--accent);
  color: white;
  font-size: 11px;
  font-weight: 700;
}

.end-icon {
  display: grid;
  place-items: center;
  width: 82px;
  height: 82px;
  margin: 28px 0 22px;
  border-radius: 24px;
  background: var(--accent);
  color: white;
  font-size: 36px;
}

.end-card h2 {
  margin: 0 0 10px;
  color: var(--teal);
  font-size: 27px;
}

.end-card p {
  max-width: 260px;
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}

.end-card ul {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 0;
  list-style: none;
}

.end-card li {
  margin: 8px 0;
  color: var(--ink);
  font-size: 12px;
}

.end-card li::before {
  content: "·";
  margin-right: 8px;
  color: var(--accent);
  font-size: 18px;
  font-weight: 700;
}

.back-note {
  margin-top: 28px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

@media (max-width: 820px) {
  .portal-grid {
    grid-template-columns: 1fr;
  }

  .end-card {
    min-height: auto;
  }
}