/* NESTIR 世界入口 — 外層閘門 */
:root {
  --portal-bg: #0A1E31;
  --portal-ink: #142E47;
  --portal-blue: #496576;
  --portal-paper: #E9EAE7;
  --portal-muted: #7E94A3;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--portal-bg);
  color: var(--portal-paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", sans-serif;
}

.portal {
  min-height: 100svh;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 22px 60px;
  background-image:
    linear-gradient(rgba(233, 234, 231, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(233, 234, 231, .04) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center;
}

.portal-bar {
  height: 72px;
  display: flex;
  align-items: center;
}

.portal-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--portal-paper);
  text-decoration: none;
  font-weight: 750;
  letter-spacing: .17em;
  font-size: 15px;
}

.portal-compass {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1.5px solid #B9C6CE;
  border-radius: 50%;
}
.portal-compass:before,
.portal-compass:after { content: ""; position: absolute; background: #B9C6CE; }
.portal-compass:before { width: 1px; height: calc(100% + 8px); }
.portal-compass:after { height: 1px; width: calc(100% + 8px); }
.portal-compass i {
  width: 11px; height: 16px;
  background: #347A5B;
  clip-path: polygon(50% 0, 88% 50%, 50% 100%, 12% 50%);
  transform: rotate(26deg);
}

.portal-hero {
  margin-top: clamp(40px, 12vh, 120px);
}

.portal-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(40px, 9vw, 72px);
  letter-spacing: -.045em;
  line-height: .98;
  font-weight: 700;
}

.portal-hero p {
  max-width: 460px;
  margin: 0;
  color: #B9C6CE;
  font-size: 20px;
  line-height: 1.5;
}

.portal-enter {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 34px;
  padding: 0 26px;
  min-height: 56px;
  border-radius: 28px;
  background: var(--portal-blue);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 17px;
  transition: transform 85ms ease, background 220ms ease;
}
.portal-enter:hover { background: #5A7A8C; }
.portal-enter:active { transform: scale(.95); }
.portal-enter span { transition: transform 200ms ease; }
.portal-enter:hover span { transform: translateX(4px); }

.portal-roster {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.portal-roster__item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid rgba(233, 234, 231, .12);
  border-radius: 18px;
  background: rgba(233, 234, 231, .04);
}

.portal-roster__dot {
  flex: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c, #496576);
  box-shadow: 0 0 12px var(--c, #496576);
}

.portal-roster__item strong { display: block; font-size: 15px; }
.portal-roster__item em {
  display: block;
  font-style: normal;
  font-size: 12.5px;
  color: var(--portal-muted);
  margin-top: 3px;
}

.portal-note {
  margin: 40px 0 0;
  color: var(--portal-muted);
  font-size: 13px;
  text-align: center;
  letter-spacing: .02em;
}

@media (prefers-reduced-motion: reduce) {
  .portal-enter, .portal-enter span { transition: none; }
}