:root {
  --bg: #f3f4f6;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-solid: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --line-soft: #eceff3;
  --accent: #374151;
  --accent-soft: #4b5563;
  --shadow-soft: 0 10px 30px rgba(17, 24, 39, 0.06);
  --shadow-card: 0 16px 40px rgba(17, 24, 39, 0.08);
  --radius-xl: 22px;
  --radius-lg: 16px;
  --radius-md: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 0% 0%, #ffffff 0%, var(--bg) 35%),
    radial-gradient(circle at 100% 0%, #f9fafb 0%, var(--bg) 45%);
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "PingFang SC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    sans-serif;
  letter-spacing: 0.01em;
  text-rendering: geometricPrecision;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid var(--line-soft);
  padding: 20px 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 620;
  color: #111827;
}

.topbar-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
}

.container {
  width: min(1680px, 92vw);
  margin: 34px auto 56px;
  display: grid;
  gap: 20px;
}

.card {
  background: linear-gradient(165deg, var(--surface) 0%, var(--surface-solid) 100%);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.card h2 {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 600;
  color: #111827;
}

.grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

input,
button {
  height: 42px;
  padding: 0 14px;
  border-radius: var(--radius-md);
  font-size: 14px;
  transition: all 180ms ease;
}

input {
  border: 1px solid var(--line);
  background: #fcfcfd;
  color: #111827;
}

input::placeholder {
  color: #9ca3af;
}

input:focus {
  outline: none;
  border-color: #c7ccd4;
  box-shadow: 0 0 0 4px rgba(75, 85, 99, 0.08);
}

button {
  border: 1px solid transparent;
  background: linear-gradient(180deg, #4b5563 0%, #374151 100%);
  color: #fff;
  font-weight: 550;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
}

button:hover {
  transform: translateY(-1px);
  background: linear-gradient(180deg, #5b6675 0%, #3f4a59 100%);
}

button:active {
  transform: translateY(0);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stat {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  padding: 16px;
  box-shadow: var(--shadow-soft);
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.stat strong {
  display: block;
  margin-top: 8px;
  font-size: 28px;
  font-weight: 640;
  color: #111827;
}

.bars {
  margin-top: 12px;
  display: grid;
  gap: 10px;
}

.bar-row {
  display: grid;
  grid-template-columns: 120px 1fr 44px;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.bar {
  height: 12px;
  border-radius: 999px;
  border: 1px solid #e6e9ef;
  background: #f3f4f6;
  overflow: hidden;
}

.bar > i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #4b5563 0%, #6b7280 100%);
}

.table-tools {
  margin-top: 10px;
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.table-tools span {
  color: var(--muted);
  font-size: 13px;
}

.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 10px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
}

.table th,
.table td {
  border-bottom: 1px solid #eef1f5;
  padding: 11px 12px;
  font-size: 13px;
  text-align: left;
}

.table tr:last-child td {
  border-bottom: none;
}

.table th {
  background: #f8fafc;
  color: #374151;
  font-weight: 600;
}

.table tbody tr:hover td {
  background: #fbfcff;
}

/* Desktop: 更宽留白和高密度信息布局 */
@media (min-width: 1440px) {
  .container {
    width: min(1880px, 90vw);
    gap: 24px;
  }

  .card {
    padding: 28px;
  }

  .grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

/* Tablet */
@media (max-width: 1100px) {
  .topbar {
    padding: 16px 18px;
  }

  .container {
    width: min(96vw, 1200px);
    margin: 22px auto 40px;
    gap: 14px;
  }

  .card {
    border-radius: 18px;
    padding: 18px;
  }

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

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

/* Mobile: 单列、触控友好、字体与间距收敛 */
@media (max-width: 768px) {
  .topbar {
    padding: 14px 12px;
    align-items: flex-start;
    gap: 10px;
    flex-direction: column;
  }

  .topbar h1 {
    font-size: 18px;
  }

  .topbar-actions {
    width: 100%;
    justify-content: space-between;
  }

  .container {
    width: calc(100vw - 20px);
    margin: 12px auto 26px;
    gap: 12px;
  }

  .card {
    border-radius: 14px;
    padding: 14px;
    box-shadow: 0 10px 20px rgba(17, 24, 39, 0.06);
  }

  .card h2 {
    font-size: 16px;
    margin-bottom: 12px;
  }

  .grid,
  .stats {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  input,
  button {
    width: 100%;
    height: 40px;
    font-size: 14px;
  }

  .bar-row {
    grid-template-columns: 90px 1fr 34px;
    gap: 8px;
    font-size: 12px;
  }

  .table-tools {
    gap: 8px;
  }

  .table {
    font-size: 12px;
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .table th,
  .table td {
    padding: 9px 10px;
  }
}