:root {
  --bg: #f6f0e6;
  --surface: rgba(255, 251, 246, 0.82);
  --surface-strong: rgba(255, 251, 246, 0.92);
  --text: #1d2430;
  --muted: #667085;
  --line: rgba(126, 64, 23, 0.12);
  --accent: #a5481d;
  --accent-2: #0e6f68;
  --chat-tint: rgba(165, 72, 29, 0.08);
  --admin-tint: rgba(14, 111, 104, 0.08);
  --shadow: 0 24px 70px rgba(74, 39, 14, 0.12);
}

* {
  box-sizing: border-box;
}

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

body {
  position: relative;
  overflow-x: hidden;
  color: var(--text);
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.7), transparent 42%),
    linear-gradient(145deg, #faf5ec 0%, var(--bg) 48%, #efe5d7 100%);
}

.ambient {
  position: fixed;
  inset: auto;
  width: 32rem;
  height: 32rem;
  border-radius: 999px;
  filter: blur(24px);
  pointer-events: none;
  opacity: 0.55;
}

.ambient-left {
  top: -10rem;
  left: -8rem;
  background: radial-gradient(circle, rgba(154, 52, 18, 0.22), transparent 68%);
}

.ambient-right {
  right: -8rem;
  bottom: -10rem;
  background: radial-gradient(circle, rgba(15, 118, 110, 0.18), transparent 68%);
}

.grid-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.08) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.35), transparent 82%);
}

.shell {
  position: relative;
  z-index: 1;
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 64px;
}

.hero {
  padding: 44px 44px 28px;
  border-radius: 36px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  text-align: center;
}

.eyebrow,
.card-label {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  line-height: 1.02;
  font-size: clamp(42px, 7vw, 82px);
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
}

.intro {
  max-width: 38rem;
  margin: 18px auto 0;
  color: #374151;
  line-height: 1.8;
  font-size: 17px;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.portal-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  padding: 28px;
  border-radius: 30px;
  background: var(--surface-strong);
  border: 1px solid var(--line);
  box-shadow: 0 18px 48px rgba(76, 38, 11, 0.08);
  backdrop-filter: blur(14px);
}

.portal-chat {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.72)),
    var(--chat-tint);
}

.portal-admin {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.72)),
    var(--admin-tint);
}

.portal-card h2 {
  margin: 0;
  font-size: 30px;
  line-height: 1.15;
}

.portal-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
  min-height: 3.6em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  transition: transform 140ms ease, opacity 140ms ease, box-shadow 140ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #dd6b20);
  box-shadow: 0 14px 30px rgba(165, 72, 29, 0.18);
}

.btn-secondary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent-2), #15958b);
  box-shadow: 0 14px 30px rgba(14, 111, 104, 0.18);
}

.portal-path {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.12);
  color: #475467;
  font-weight: 700;
  font-size: 13px;
}

.feedback-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 18px;
  padding: 24px 28px;
  border-radius: 28px;
  background: rgba(255, 251, 246, 0.76);
  border: 1px solid var(--line);
  box-shadow: 0 14px 40px rgba(76, 38, 11, 0.07);
  backdrop-filter: blur(12px);
}

.feedback-copy h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.15;
}

.feedback-copy p:last-child {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.btn-ghost {
  color: var(--accent);
  background: rgba(165, 72, 29, 0.08);
  border: 1px solid rgba(165, 72, 29, 0.12);
}

@media (max-width: 980px) {
  .portal-grid {
    grid-template-columns: 1fr;
  }

  .feedback-panel {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 20px, 1120px);
    padding: 24px 0 36px;
  }

  .hero,
  .portal-card {
    padding: 20px;
    border-radius: 24px;
  }

  .hero h1 {
    font-size: 40px;
  }

  .intro {
    font-size: 15px;
  }

  .btn {
    width: 100%;
  }

  .portal-card p {
    min-height: 0;
  }

  .feedback-panel {
    padding: 20px;
    border-radius: 24px;
  }

  .feedback-copy h2 {
    font-size: 24px;
  }
}