:root[data-theme="dark"] {
  --bg-page: #0b0f17;
  --bg-card: #131a27;
  --bg-card-hover: #182132;
  --bg-elevated: #1c2638;
  --bg-input: #0e1420;
  --border-color: #243047;
  --border-subtle: #1b2436;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-oracle: #e04f3d;
  --accent-oracle-hover: #f25f4c;
  --accent-oracle-soft: rgba(224, 79, 61, 0.15);
  --accent-cf: #f6821f;
  --color-excellent: #10b981;
  --color-excellent-bg: rgba(16, 185, 129, 0.14);
  --color-good: #38bdf8;
  --color-good-bg: rgba(56, 189, 248, 0.14);
  --color-fair: #f59e0b;
  --color-fair-bg: rgba(245, 158, 11, 0.14);
  --color-poor: #f43f5e;
  --color-poor-bg: rgba(244, 63, 94, 0.14);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.32);
}

:root[data-theme="light"] {
  --bg-page: #f4f6fa;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-elevated: #f1f5f9;
  --bg-input: #ffffff;
  --border-color: #e2e8f0;
  --border-subtle: #edf2f7;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent-oracle: #c74634;
  --accent-oracle-hover: #b13928;
  --accent-oracle-soft: rgba(199, 70, 52, 0.1);
  --accent-cf: #f6821f;
  --color-excellent: #059669;
  --color-excellent-bg: rgba(5, 150, 105, 0.12);
  --color-good: #0284c7;
  --color-good-bg: rgba(2, 132, 199, 0.12);
  --color-fair: #d97706;
  --color-fair-bg: rgba(217, 119, 6, 0.12);
  --color-poor: #e11d48;
  --color-poor-bg: rgba(225, 29, 72, 0.12);
  --shadow-card: 0 2px 12px rgba(15, 23, 42, 0.06);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  min-height: 100vh;
}

body {
  background-color: var(--bg-page);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}

code {
  font-family: "SF Mono", "JetBrains Mono", Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
}

.app-container {
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  margin: 0;
  padding: 16px 24px 28px;
  display: flex;
  flex-direction: column;
}

/* 顶部栏 */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
}

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

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, #c74634, #e9634f);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(199, 70, 52, 0.35);
  flex-shrink: 0;
}

.brand-logo svg {
  width: 26px;
  height: 18px;
}

.brand-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.badge-version {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-oracle-soft);
  color: var(--accent-oracle);
  border: 1px solid rgba(224, 79, 61, 0.3);
}

.brand-subtitle {
  font-size: 12.5px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 按钮通用样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: all 0.15s ease;
  user-select: none;
  white-space: nowrap;
}

.btn-lg {
  padding: 10px 20px;
  font-size: 14px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-oracle), #d63d2a);
  color: #ffffff;
  box-shadow: 0 3px 12px rgba(224, 79, 61, 0.3);
}

.btn-primary:hover {
  background: var(--accent-oracle-hover);
  transform: translateY(-1px);
}

.btn-primary.running {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  box-shadow: 0 3px 12px rgba(245, 158, 11, 0.3);
}

.btn-outline {
  background: var(--bg-input);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-outline:hover {
  background: var(--bg-elevated);
  border-color: var(--text-muted);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-color);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-elevated);
}

/* 当前网络状态栏 */
.net-banner {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-card);
}

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

.net-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.net-label {
  font-size: 11.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.net-value {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
  font-family: "SF Mono", Menlo, Consolas, monospace;
}

.net-value.net-hint {
  font-family: inherit;
  color: var(--color-good);
}

.proxy-alert {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--color-fair-bg);
  border: 1px solid rgba(245, 158, 11, 0.35);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 12.5px;
  color: var(--text-primary);
}

.proxy-alert code {
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.2);
}

.hidden {
  display: none !important;
}

/* Top 3 推荐领奖台 */
.podium-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}

.podium-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 14px 18px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
  overflow: hidden;
  transition: transform 0.15s ease, border-color 0.2s ease;
}

.podium-card.active-1 {
  border-color: rgba(16, 185, 129, 0.55);
}

.podium-rank {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
}

.podium-rank.rank-1 {
  color: var(--color-excellent);
}

.podium-rank.rank-2 {
  color: var(--color-good);
}

.podium-rank.rank-3 {
  color: var(--color-fair);
}

.podium-main {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.podium-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.podium-latency {
  font-size: 22px;
  font-weight: 800;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  color: var(--text-primary);
}

.podium-latency small {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.podium-meta {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 控制面板 */
.control-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-card);
}

.control-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.primary-controls,
.secondary-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 5px 10px;
  border-radius: 8px;
}

.control-group label {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.control-group select {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  outline: none;
  cursor: pointer;
}

.control-group select option {
  background: var(--bg-card);
  color: var(--text-primary);
}

.search-box input {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  width: 240px;
  outline: none;
  transition: border-color 0.15s ease;
}

.search-box input:focus {
  border-color: var(--accent-oracle);
}

/* 进度条 */
.progress-wrapper {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
}

.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.progress-track {
  width: 100%;
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-oracle), #10b981);
  border-radius: 999px;
  transition: width 0.2s ease;
}

/* 分类标签栏 */
.category-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.tab-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.tab-btn.active {
  background: var(--accent-oracle-soft);
  color: var(--accent-oracle);
  border-color: var(--accent-oracle);
}

.tab-count {
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.15);
}

/* 区域小卡片网格 */
.region-grid-section {
  width: 100%;
  flex: 1;
}

.region-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  width: 100%;
}

.region-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 13px 14px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.14s ease, border-color 0.18s ease, background-color 0.14s ease;
}

.region-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--text-muted);
  transform: translateY(-1px);
}

.region-card.card-top-1 {
  border-color: rgba(16, 185, 129, 0.55);
}

.region-card.card-top-2 {
  border-color: rgba(56, 189, 248, 0.45);
}

.region-card.card-top-3 {
  border-color: rgba(245, 158, 11, 0.45);
}

.region-card.card-testing {
  border-color: var(--accent-oracle);
}

.rc-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.rc-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1;
}

.rc-name-wrap {
  min-width: 0;
  flex: 1;
}

.rc-name-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rc-sub-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
  min-width: 0;
}

.rc-en {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rc-avg-badge {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  padding: 4px 9px;
  border-radius: 8px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-weight: 800;
  font-size: 16px;
  line-height: 1.1;
  flex-shrink: 0;
}

.rc-avg-badge small {
  font-size: 10.5px;
  font-weight: 600;
  opacity: 0.85;
}

.rc-bar-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rc-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 7px 8px;
}

.rc-metric-item {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.rc-metric-label {
  font-size: 10.5px;
  color: var(--text-muted);
  white-space: nowrap;
}

.rc-metric-val {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rc-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 2px;
}

.rc-footer .endpoint-host {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  flex: 1;
}

.status-active {
  color: var(--accent-oracle) !important;
  font-weight: 600;
}

.rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  height: 22px;
  padding: 0 5px;
  border-radius: 6px;
  font-family: "SF Mono", Menlo, monospace;
  font-size: 11.5px;
  font-weight: 700;
  background: var(--bg-elevated);
  color: var(--text-muted);
  flex-shrink: 0;
}

.rank-badge.top-1 {
  background: var(--color-excellent-bg);
  color: var(--color-excellent);
}

.rank-badge.top-2 {
  background: var(--color-good-bg);
  color: var(--color-good);
}

.rank-badge.top-3 {
  background: var(--color-fair-bg);
  color: var(--color-fair);
}

/* 区域名称与标签 */
.region-flag {
  font-size: 20px;
  line-height: 1;
  flex-shrink: 0;
}

.region-title {
  font-weight: 600;
  font-size: 13.5px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 5px;
  min-width: 0;
}

.tag {
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 4px;
  font-weight: 600;
  flex-shrink: 0;
}

.tag-hot {
  background: rgba(224, 79, 61, 0.16);
  color: var(--accent-oracle);
}

.tag-new {
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-excellent);
}

.region-code {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-weight: 600;
  font-size: 11.5px;
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
}

.region-code:hover {
  color: var(--accent-oracle);
}

.endpoint-host {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 10.5px;
  color: var(--text-muted);
  cursor: pointer;
}

.endpoint-host:hover {
  color: var(--text-secondary);
  text-decoration: underline;
}

/* 延迟条与采样点 */
.latency-bar-bg {
  width: 100%;
  height: 7px;
  background: var(--bg-elevated);
  border-radius: 999px;
  overflow: hidden;
}

.latency-bar-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.25s ease, background-color 0.25s ease;
}

.sample-dots {
  display: flex;
  align-items: center;
  gap: 3px;
  flex-wrap: wrap;
  min-height: 16px;
}

.sample-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border-color);
}

.grade-excellent {
  background: var(--color-excellent-bg);
  color: var(--color-excellent);
}

.grade-good {
  background: var(--color-good-bg);
  color: var(--color-good);
}

.grade-fair {
  background: var(--color-fair-bg);
  color: var(--color-fair);
}

.grade-poor {
  background: var(--color-poor-bg);
  color: var(--color-poor);
}

.grade-idle {
  background: var(--bg-elevated);
  color: var(--text-muted);
}

.stat-sub {
  font-size: 11px;
  color: var(--text-muted);
}

/* 操作按钮 */
.action-group {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.btn-xs {
  padding: 3px 7px;
  font-size: 11px;
  border-radius: 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-xs:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
  background: var(--bg-input);
}

/* 页脚说明区 */
.footer-notes {
  margin-top: 24px;
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.note-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px 18px;
}

.note-card h3 {
  font-size: 14px;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.note-card p {
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.footer-bottom {
  text-align: center;
  margin-top: 20px;
  font-size: 12px;
  color: var(--text-muted);
}

/* Toast 提示 */
.toast {
  position: fixed;
  bottom: 26px;
  right: 26px;
  background: var(--text-primary);
  color: var(--bg-page);
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  z-index: 9999;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

@media (max-width: 960px) {
  .net-info-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .podium-section,
  .notes-grid {
    grid-template-columns: 1fr;
  }
  .search-box input {
    width: 100%;
  }
}