/* 主体布局：灰白分区 + 蓝色强调 */
:root {
  --color-background: #f5f6f8;
  --color-surface: #ffffff;
  --color-shadow: rgba(15, 23, 42, 0.08);
  --color-border: #e2e6ef;
  --color-text-primary: #1f2937;
  --color-text-secondary: #5f6b7c;
  --color-accent: #3b6bff;
  --color-accent-strong: #2f55ff;
  --radius-large: 24px;
  --radius-medium: 16px;
  --radius-small: 10px;
  --transition-fast: 0.18s ease-out;
  font-family: "SF Pro Display", "SF Pro Text", "Segoe UI", system-ui, -apple-system,
    BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background-color: var(--color-background);
  color: var(--color-text-primary);
  min-height: 100vh;
}

.page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: clamp(16px, 4vw, 40px);
  gap: 24px;
}

.page__header,
.page__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.page__header {
  background: linear-gradient(135deg, #ffffff, #eef2ff);
  border-radius: var(--radius-large);
  padding: clamp(20px, 4vw, 36px);
  box-shadow: 0 18px 40px var(--color-shadow);
  position: sticky;
  top: 16px;
  z-index: 100;
}

.page__footer {
  justify-content: center;
  font-size: 14px;
  color: var(--color-text-secondary);
  padding: 12px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand__icon {
  width: clamp(60px, 8vw, 72px);
  height: clamp(60px, 8vw, 72px);
  display: grid;
  place-items: center;
  border-radius: 20px;
  background: rgba(47, 101, 255, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6), inset 0 -1px 0 rgba(0, 0, 0, 0.04);
}

.brand__icon svg {
  width: 60%;
}

.brand__copy h1 {
  margin: 0;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand__copy p {
  margin: 6px 0 0;
  color: var(--color-text-secondary);
  font-size: 15px;
}

.page__content {
  display: grid;
  gap: 24px;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-large);
  padding: clamp(24px, 3vw, 32px);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.07);
  display: grid;
  gap: 20px;
}

.card--primary {
  border: 1px solid rgba(47, 101, 255, 0.2);
}

.card--surface {
  background: #f8f9fb;
  border: 1px solid rgba(88, 110, 163, 0.12);
}

.card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.card__hint {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 14px;
}

h2 {
  margin: 0;
  font-size: 20px;
  letter-spacing: 0.01em;
}

.form-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.form-control {
  display: grid;
  gap: 10px;
}

.form-control--full {
  grid-column: 1 / -1;
}

.form-control span,
.form-control legend {
  font-size: 14px;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
}

input[type="file"],
input[type="text"],
input[type="password"],
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background: linear-gradient(180deg, #ffffff, #f4f5f8);
  color: var(--color-text-primary);
  font-size: 15px;
  transition: border var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(59, 107, 255, 0.15);
}

textarea {
  resize: vertical;
  min-height: 160px;
  line-height: 1.5;
}

.input-with-action {
  display: flex;
  gap: 8px;
  align-items: center;
}

.input-with-action input {
  flex: 1;
}

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 8px 0;
}

.radio-group label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(59, 107, 255, 0.08);
  color: var(--color-accent);
  cursor: pointer;
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

.radio-group input {
  accent-color: var(--color-accent);
}

.radio-group label:hover {
  background: rgba(59, 107, 255, 0.14);
  box-shadow: 0 6px 18px rgba(47, 85, 255, 0.16);
}

.primary-button,
.ghost-button {
  border-radius: 999px;
  padding: 10px 20px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  border: none;
}

.primary-button {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-strong));
  color: #ffffff;
  box-shadow: 0 12px 28px rgba(47, 85, 255, 0.25);
}

.primary-button:disabled {
  background: #bdc5ff;
  box-shadow: none;
  cursor: not-allowed;
}

.ghost-button {
  background: rgba(255, 255, 255, 0.3);
  color: var(--color-accent);
  border: 1px solid rgba(59, 107, 255, 0.3);
}

.primary-button:hover:not(:disabled),
.ghost-button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(47, 85, 255, 0.18);
}

.primary-button:active:not(:disabled),
.ghost-button:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: inset 0 2px 4px rgba(15, 23, 42, 0.15);
}

.action-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.progress {
  height: 10px;
  background: rgba(59, 107, 255, 0.12);
  border-radius: 999px;
  overflow: hidden;
}

.progress__bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(135deg, rgba(59, 107, 255, 0.9), rgba(47, 85, 255, 1));
  transition: width 0.25s ease-out;
}

.progress__meta {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.selectable-list {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  padding: 12px;
  border-radius: var(--radius-medium);
  background: #f3f4f8;
  border: 1px dashed rgba(59, 107, 255, 0.2);
}

.selectable-list label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border-radius: var(--radius-small);
  background: #ffffff;
  border: 1px solid rgba(59, 107, 255, 0.18);
  cursor: pointer;
  transition: border var(--transition-fast), box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.selectable-list label:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(47, 85, 255, 0.12);
}

.selectable-list input {
  accent-color: var(--color-accent);
}

.log-output {
  min-height: 180px;
  max-height: 320px;
  overflow-y: auto;
  background: #ffffff;
  border-radius: var(--radius-medium);
  border: 1px solid rgba(59, 107, 255, 0.14);
  padding: 14px 18px;
  font-family: "SF Mono", Consolas, "Courier New", monospace;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.log-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(226, 230, 239, 0.6);
}

.log-line:last-child {
  border-bottom: none;
}

.log-line__message {
  color: var(--color-text-primary);
}

.log-line__time {
  color: rgba(59, 107, 255, 0.8);
  font-variant-numeric: tabular-nums;
}

.result-preview {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
  border-radius: var(--radius-medium);
  border: 1px solid rgba(226, 230, 239, 0.8);
  overflow: hidden;
}

caption {
  text-align: left;
  padding: 14px 18px;
  background: rgba(59, 107, 255, 0.08);
  color: var(--color-accent);
  font-weight: 600;
}

th,
td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(226, 230, 239, 0.8);
  text-align: left;
  vertical-align: top;
}

tbody tr:hover {
  background: rgba(59, 107, 255, 0.06);
}

.empty {
  text-align: center;
  color: var(--color-text-secondary);
}

@media (max-width: 900px) {
  .page__header,
  .card {
    padding: 20px;
  }

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

  .brand__icon {
    align-self: flex-start;
  }

  .action-row {
    flex-direction: column;
    align-items: stretch;
  }

  .radio-group {
    gap: 8px;
  }
}