:root {
  --bg-shell: #f8f0e5;
  --bg-paper: #f8f0e5;
  --bg-card: rgba(255, 253, 249, 0.96);
  --ink-strong: #4a2f22;
  --ink-soft: #6d5346;
  --line: rgba(105, 80, 66, 0.16);
  --accent-blue: #94a5b5;
  --accent-caramel: #9d6f55;
  --shadow-lg: 0 24px 60px rgba(74, 47, 34, 0.1);
  --shadow-md: 0 12px 28px rgba(74, 47, 34, 0.07);
  --radius-xl: 28px;
  --radius-lg: 22px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink-strong);
  background:
    radial-gradient(circle at 8% 4%, rgba(177, 145, 124, 0.14), transparent 26%),
    radial-gradient(circle at 92% 0%, rgba(148, 165, 181, 0.18), transparent 28%),
    linear-gradient(180deg, #fbf6ef 0%, var(--bg-shell) 100%);
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}

button,
table {
  font: inherit;
}

button {
  cursor: pointer;
}

.portal-shell {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  min-height: 100vh;
  gap: 24px;
  padding: 22px;
}

.signin-shell {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 22px;
}

.signin-card {
  display: grid;
  gap: 16px;
  width: min(420px, 100%);
  padding: 32px;
  border: 1px solid rgba(157, 111, 85, 0.18);
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(255, 253, 249, 0.98), rgba(247, 240, 231, 0.96));
  box-shadow: var(--shadow-lg);
}

.signin-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.signin-brand p,
.signin-brand h1,
.signin-brand small {
  margin: 0;
}

.signin-brand p {
  color: var(--accent-caramel);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.signin-brand h1 {
  font-size: 24px;
  line-height: 1.25;
}

.signin-brand small {
  color: var(--ink-soft);
}

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

.field span {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
}

.field input {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink-strong);
  font: inherit;
}

.field input:focus {
  border-color: var(--accent-caramel);
  outline: 2px solid rgba(157, 111, 85, 0.2);
}

.field-error {
  margin: 0;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid rgba(176, 84, 66, 0.28);
  background: rgba(196, 108, 88, 0.12);
  color: #8c4030;
  font-size: 13px;
}

.primary-button {
  padding: 12px 18px;
  border: 1px solid rgba(157, 111, 85, 0.32);
  border-radius: 999px;
  background: linear-gradient(180deg, #b07f63, #9d6f55);
  color: #fffaf5;
  font-weight: 700;
}

.primary-button:disabled {
  cursor: progress;
  opacity: 0.72;
}

.signin-note {
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.6;
}

.portal-rail {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 22px;
  border: 1px solid rgba(157, 111, 85, 0.18);
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(255, 253, 249, 0.98), rgba(247, 240, 231, 0.96));
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(18px);
}

.brand-card {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 14px;
  align-items: center;
  padding: 18px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(148, 165, 181, 0.18);
  background: rgba(148, 165, 181, 0.1);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  border-radius: 22px;
  color: #fffdf9;
  background: linear-gradient(160deg, #a7b4c0, var(--accent-blue));
  font-size: 28px;
  font-weight: 700;
}

.brand-card p,
.brand-card h1,
.brand-card small {
  margin: 0;
  color: var(--ink-strong);
}

.brand-card p {
  opacity: 0.72;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-card h1 {
  margin-top: 4px;
  font-size: 25px;
}

.brand-card small {
  display: block;
  margin-top: 8px;
  opacity: 0.82;
}

.portal-nav {
  display: grid;
  gap: 10px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid transparent;
  border-radius: 20px;
  color: var(--ink-soft);
  background: rgba(255, 253, 249, 0.58);
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.nav-item:hover,
.nav-item.is-active {
  transform: translateY(-1px);
  border-color: rgba(148, 165, 181, 0.36);
  color: var(--ink-strong);
  background: rgba(148, 165, 181, 0.16);
}

.nav-copy {
  display: grid;
  gap: 4px;
  text-align: left;
}

.nav-copy strong {
  font-size: 15px;
}

.nav-copy small {
  opacity: 0.76;
  font-size: 12px;
}

.rail-note {
  margin-top: auto;
  padding: 18px;
  border-radius: 24px;
  border: 1px solid rgba(157, 111, 85, 0.16);
  color: var(--ink-soft);
  background: rgba(157, 111, 85, 0.08);
}

.rail-note small,
.rail-note strong,
.rail-note span {
  display: block;
}

.rail-note small {
  opacity: 0.68;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.rail-note strong {
  margin: 6px 0;
  font-size: 16px;
}

.rail-note span {
  opacity: 0.82;
  font-size: 13px;
  line-height: 1.5;
}

.portal-main {
  display: grid;
  align-content: start;
  gap: 18px;
  padding: 18px 18px 28px;
  border-radius: 36px;
  background: linear-gradient(180deg, rgba(255, 253, 249, 0.9), rgba(250, 245, 238, 0.96));
  box-shadow: var(--shadow-lg);
}

.topbar,
.page-head,
.state-panel,
.stat-card,
.data-card,
.callout {
  border: 1px solid var(--line);
  background: var(--bg-card);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  border-radius: var(--radius-lg);
}

.topbar strong {
  display: block;
  margin-top: 4px;
  font-size: 20px;
}

.kicker {
  color: var(--ink-soft);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.env-pill,
.tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(148, 165, 181, 0.2);
  color: #465967;
  font-size: 12px;
  font-weight: 700;
}

.ghost-button {
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-strong);
  background: rgba(255, 255, 255, 0.46);
}

.page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding: 24px;
  border-radius: var(--radius-xl);
}

.page-head p,
.page-head h2,
.page-head span {
  margin: 0;
}

.page-head p {
  color: var(--accent-caramel);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-head h2 {
  margin-top: 8px;
  font-size: 32px;
}

.page-head span {
  display: block;
  margin-top: 8px;
  max-width: 700px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.state-panel {
  padding: 20px 22px;
  border-radius: var(--radius-lg);
}

.state-panel strong {
  display: block;
  font-size: 18px;
}

.state-panel p {
  margin: 8px 0 0;
  color: var(--ink-soft);
  line-height: 1.6;
}

.state-panel.info {
  background: rgba(148, 165, 181, 0.14);
}

.state-panel.danger {
  background: rgba(180, 90, 63, 0.18);
}

.state-panel.empty {
  background: rgba(126, 143, 105, 0.14);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.stat-card {
  display: grid;
  gap: 8px;
  min-height: 146px;
  padding: 20px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.stat-card small {
  color: var(--ink-soft);
  font-size: 13px;
}

.stat-card strong {
  font-size: 28px;
}

.stat-card span {
  color: var(--ink-soft);
  line-height: 1.5;
}

.section-stack,
.callout-stack {
  display: grid;
  gap: 16px;
}

.data-card,
.callout {
  padding: 20px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.data-card header h3,
.data-card header p,
.callout strong,
.callout p {
  margin: 0;
}

.data-card header p,
.callout p,
.section-note {
  color: var(--ink-soft);
  line-height: 1.6;
}

.data-card header p {
  margin-top: 6px;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 16px;
}

table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
}

th,
td {
  padding: 13px 12px;
  border-bottom: 1px solid rgba(84, 57, 40, 0.12);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

td {
  line-height: 1.5;
}

.section-note {
  display: block;
  margin-top: 10px;
}

.callout.info {
  background: rgba(148, 165, 181, 0.12);
}

.callout.warning {
  background: rgba(157, 111, 85, 0.11);
}

.callout strong {
  display: block;
  margin-bottom: 8px;
  font-size: 16px;
}

@media (max-width: 1180px) {
  .portal-shell {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .portal-shell,
  .signin-shell {
    padding: 12px;
    gap: 12px;
  }

  .signin-card {
    padding: 24px;
    border-radius: 24px;
  }

  .portal-rail,
  .portal-main,
  .page-head,
  .topbar,
  .data-card,
  .callout,
  .state-panel,
  .stat-card {
    border-radius: 24px;
  }

  .topbar,
  .page-head {
    padding: 18px;
  }

  .page-head h2 {
    font-size: 28px;
  }

  .stat-grid {
    grid-template-columns: 1fr;
  }
}