:root {
  color-scheme: light;
  --bg: #eef2f7;
  --panel: #ffffff;
  --panel-alt: #f8fafc;
  --text: #112033;
  --muted: #5c6b7b;
  --line: #d8e1eb;
  --accent: #1f5fbf;
  --accent-soft: #e7effc;
  --success: #127b5a;
  --success-soft: #e5f4ee;
  --warning: #9a6400;
  --warning-soft: #fff2d9;
  --danger: #a3302f;
  --danger-soft: #fde8e8;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.48), transparent 160px),
    var(--bg);
}

/* 中英切换：html[data-lang] 由 assets/i18n.js 设置，决定显示哪种语言 */
html[data-lang="zh"] .lang-en,
html[data-lang="en"] .lang-zh {
  display: none;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  box-shadow: var(--shadow);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.brandline {
  display: grid;
  gap: 4px;
}

.eyebrow {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent);
}

.title {
  margin: 0;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.08;
  letter-spacing: 0;
}

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

.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.nav a[aria-current="page"] {
  border-color: #bfd0ee;
  background: var(--accent-soft);
  color: var(--accent);
}

.stack {
  display: grid;
  gap: 20px;
  padding: 24px 0 40px;
}

.band {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 20px;
}

.band-muted {
  background: var(--panel-alt);
}

.band-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.section-title {
  margin: 0;
  font-size: 22px;
  line-height: 1.16;
  letter-spacing: 0;
}

.lede {
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 70ch;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}

.pill.success {
  color: var(--success);
  background: var(--success-soft);
  border-color: #cde8dc;
}

.pill.warning {
  color: var(--warning);
  background: var(--warning-soft);
  border-color: #f1d8a9;
}

.pill.danger {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: #f3c9c8;
}

.grid {
  display: grid;
  gap: 14px;
}

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

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.metric,
.panel {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.7), transparent),
    var(--panel);
  padding: 16px;
  min-width: 0;
}

.metric span,
.panel span,
.table-note {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 18px;
  line-height: 1.2;
}

.metric p {
  margin: 8px 0 0;
  color: var(--muted);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  background: var(--panel);
}

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

.table th {
  font-size: 12px;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--panel-alt);
}

.table tr:last-child td {
  border-bottom: 0;
}

.table .accent {
  color: var(--accent);
  font-weight: 600;
}

.table .muted {
  color: var(--muted);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

/* 按钮内文字(含中英 span)跟随按钮前景色,避免被 .panel span 等规则改成 muted 灰 */
.button span {
  color: inherit;
}

.button:hover {
  background: #1a51a3;
  border-color: #1a51a3;
}

.button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* 危险操作(删除账号等):红色,与普通蓝色主按钮明确区分 */
.button.danger {
  border-color: var(--danger);
  background: var(--danger);
}

.button.danger:hover {
  background: #8f2a29;
  border-color: #8f2a29;
}

.button.danger:focus-visible {
  outline-color: var(--danger);
}

.button.secondary {
  border-color: var(--line);
  background: var(--panel);
  color: var(--text);
}

.button.secondary:hover {
  background: var(--panel-alt);
  border-color: #bfd0ee;
}

.button.disabled,
.button[aria-disabled="true"],
.button:disabled {
  opacity: 0.56;
  pointer-events: none;
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  font-size: 13px;
  font-weight: 600;
}

.field input {
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
}

.field input::placeholder {
  color: #8a97a6;
}

.field input:disabled {
  background: #f4f7fb;
  color: #90a0b2;
}

.stack-list {
  display: grid;
  gap: 10px;
}

.stack-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.stack-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.stack-item strong,
.stack-item span {
  display: block;
}

.stack-item strong {
  font-size: 15px;
}

.stack-item span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.footer-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 900px) {
  .topbar {
    flex-direction: column;
  }

  .nav {
    justify-content: flex-start;
  }

  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .band-head {
    flex-direction: column;
  }
}

@media (max-width: 700px) {
  .table-wrap {
    border: 0;
    overflow: visible;
  }

  .table {
    min-width: 0;
    background: transparent;
  }

  .table thead {
    display: none;
  }

  .table,
  .table tbody,
  .table tr,
  .table td {
    display: block;
    width: 100%;
  }

  .table tr {
    margin-bottom: 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
    overflow: hidden;
    background: var(--panel);
  }

  .table td {
    border-bottom: 1px solid var(--line);
  }

  .table td:last-child {
    border-bottom: 0;
  }

  .table td::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 4px;
    font-size: 12px;
    text-transform: uppercase;
    color: var(--muted);
  }
}