:root {
  color-scheme: light;
  --bg: #f4efe7;
  --panel: rgba(255, 252, 246, 0.88);
  --panel-strong: #fffdf8;
  --text: #1d2939;
  --muted: #5f6c7b;
  --line: rgba(138, 122, 94, 0.16);
  --primary: #0f766e;
  --primary-strong: #115e59;
  --accent-ocean: linear-gradient(135deg, #d8f3ff 0%, #eef9ff 100%);
  --accent-amber: linear-gradient(135deg, #ffe8bf 0%, #fff6de 100%);
  --accent-mint: linear-gradient(135deg, #d9fbe8 0%, #f2fff8 100%);
  --accent-coral: linear-gradient(135deg, #ffd9cd 0%, #fff0ea 100%);
  --shadow: 0 22px 70px rgba(55, 44, 24, 0.08);
  --radius: 22px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #10161b;
  --panel: rgba(18, 27, 34, 0.9);
  --panel-strong: #162029;
  --text: #f2f7fb;
  --muted: #9eb0bf;
  --line: rgba(164, 185, 201, 0.16);
  --primary: #5eead4;
  --primary-strong: #99f6e4;
  --accent-ocean: linear-gradient(135deg, rgba(17, 90, 120, 0.42) 0%, rgba(18, 34, 49, 0.9) 100%);
  --accent-amber: linear-gradient(135deg, rgba(138, 94, 14, 0.42) 0%, rgba(34, 28, 18, 0.9) 100%);
  --accent-mint: linear-gradient(135deg, rgba(14, 95, 72, 0.45) 0%, rgba(18, 34, 28, 0.9) 100%);
  --accent-coral: linear-gradient(135deg, rgba(138, 59, 43, 0.45) 0%, rgba(37, 22, 18, 0.9) 100%);
  --shadow: 0 20px 80px rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  font-family: "IBM Plex Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 214, 138, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(94, 234, 212, 0.12), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.2), transparent 35%),
    var(--bg);
}

body {
  padding: 28px;
}

.page-shell {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  gap: 20px;
}

.hero,
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px;
  align-items: flex-start;
}

.hero h1,
.section-head h2 {
  margin: 0;
  font-family: "Space Grotesk", "IBM Plex Sans", "PingFang SC", sans-serif;
  letter-spacing: -0.03em;
}

.hero h1 {
  font-size: clamp(28px, 4vw, 40px);
}

.hero-text,
.muted {
  color: var(--muted);
  line-height: 1.7;
}

.eyebrow,
.section-kicker,
.card-label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary);
}

.hero-actions,
.section-head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-head {
  justify-content: space-between;
  margin-bottom: 16px;
}

.btn {
  border: 0;
  border-radius: 999px;
  padding: 11px 18px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.18s ease, opacity 0.18s ease, background 0.18s ease;
}

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

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
}

.btn-secondary,
.btn-ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.38);
  border: 1px solid var(--line);
}

.grid {
  display: grid;
  gap: 20px;
}

.cards-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.content-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  padding: 22px;
}

.stat-card {
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.stat-value {
  margin: 0;
  font-size: clamp(28px, 3vw, 38px);
  letter-spacing: -0.04em;
}

.card-help {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.accent-ocean { background: var(--accent-ocean); }
.accent-amber { background: var(--accent-amber); }
.accent-mint { background: var(--accent-mint); }
.accent-coral { background: var(--accent-coral); }

.link-box,
.bind-panel,
.table-shell,
.tips-list {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel-strong);
}

.link-box {
  padding: 16px;
  margin-bottom: 12px;
  overflow: auto;
}

.link-box code {
  display: block;
  white-space: pre-wrap;
  word-break: break-all;
  font-size: 13px;
}

.bind-panel {
  padding: 16px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 12px;
}

.status-badge.ok {
  color: #065f46;
  background: rgba(16, 185, 129, 0.16);
}

.status-badge.warn {
  color: #9a3412;
  background: rgba(251, 146, 60, 0.16);
}

:root[data-theme="dark"] .status-badge.ok {
  color: #6ee7b7;
}

:root[data-theme="dark"] .status-badge.warn {
  color: #fdba74;
}

.bind-title {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 800;
}

.bind-form {
  display: flex;
  gap: 12px;
  margin: 14px 0 10px;
}

.text-input {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  padding: 12px 14px;
  font: inherit;
  color: var(--text);
  background: transparent;
}

.text-input:focus {
  outline: 2px solid rgba(15, 118, 110, 0.2);
  border-color: rgba(15, 118, 110, 0.35);
}

.table-shell {
  overflow: auto;
}

.empty-state {
  padding: 22px;
  color: var(--muted);
  text-align: center;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.data-table th {
  position: sticky;
  top: 0;
  background: var(--panel-strong);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tips-list {
  padding: 14px;
  display: grid;
  gap: 12px;
}

.tip-item {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.2);
}

.fatal-card {
  min-height: 50vh;
  display: grid;
  align-content: center;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  max-width: min(420px, calc(100vw - 48px));
  padding: 14px 18px;
  border-radius: 16px;
  color: #fff;
  background: rgba(17, 24, 39, 0.92);
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.25);
}

.toast[data-tone="success"] {
  background: rgba(6, 95, 70, 0.94);
}

.toast[data-tone="error"] {
  background: rgba(153, 27, 27, 0.95);
}

@media (max-width: 1100px) {
  .cards-grid,
  .content-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  body {
    padding: 16px;
  }

  .hero,
  .section-head,
  .bind-form {
    flex-direction: column;
    align-items: stretch;
  }

  .cards-grid,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    width: 100%;
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}