:root {
  --tv-bg: #131722;
  --tv-panel: #1e222d;
  --tv-card: #181c27;
  --tv-border: #2a2e39;
  --tv-border-hover: #363a45;
  --tv-text: #d1d4dc;
  --tv-text-muted: #787b86;
  
  --accent-yellow: #f0b90b;
  --accent-yellow-hover: #d9a507;
  --up-green: #089981;
  --down-red: #f23645;
  --tv-blue: #2962ff;
  --tv-blue-hover: #1e53e5;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Trebuchet MS", Roboto, Ubuntu, sans-serif;
  --font-mono: "JetBrains Mono", Consolas, "Courier New", monospace;
}

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

body {
  background-color: var(--tv-bg);
  color: var(--tv-text);
  font-family: var(--font-sans);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  user-select: none;
}

/* 顶部控制栏 (TradingView 风格) */
.top-bar {
  height: 46px;
  background-color: var(--tv-bg);
  border-bottom: 1px solid var(--tv-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  z-index: 100;
}

.bar-left, .bar-center, .bar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-right: 4px;
}

.brand-badge {
  background: var(--accent-yellow);
  color: #000;
  font-size: 10px;
  font-weight: 800;
  padding: 2px 5px;
  border-radius: 3px;
  letter-spacing: 0.5px;
}

.brand-title {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
}

/* 现货/合约切换 */
.market-switch {
  display: flex;
  background: var(--tv-panel);
  border: 1px solid var(--tv-border);
  border-radius: 4px;
  padding: 2px;
}

.market-tab {
  background: transparent;
  border: none;
  padding: 3px 8px;
  font-size: 11px;
  color: var(--tv-text-muted);
  cursor: pointer;
  border-radius: 3px;
  transition: all 0.15s;
}

.market-tab.active {
  background: var(--tv-bg);
  color: var(--accent-yellow);
  font-weight: 600;
}

/* 热门快捷币种 */
.quick-symbols {
  display: flex;
  gap: 4px;
}

.symbol-chip {
  padding: 3px 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--tv-text-muted);
  background: var(--tv-panel);
  border-radius: 3px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
}

.symbol-chip:hover {
  color: #fff;
  border-color: var(--tv-border-hover);
}

.symbol-chip.active {
  color: #fff;
  background: #2a2e39;
  border-color: #363a45;
}

/* 搜索框 */
.symbol-search-box {
  display: flex;
  align-items: center;
  gap: 4px;
}

.symbol-search-box input {
  background: var(--tv-panel);
  border: 1px solid var(--tv-border);
  border-radius: 4px;
  color: #fff;
  padding: 3px 6px;
  font-size: 11px;
  width: 90px;
  outline: none;
}
.symbol-search-box input:focus { border-color: var(--tv-blue); }

/* 周期选择 (秒级极速专区) */
.interval-group {
  display: flex;
  align-items: center;
  background: var(--tv-panel);
  border: 1px solid var(--tv-border);
  border-radius: 4px;
  padding: 2px 4px;
  gap: 2px;
}

.sec-label {
  font-size: 10px;
  color: #38bdf8;
  font-weight: 700;
  margin: 0 3px;
}

.interval-btn {
  background: transparent;
  border: none;
  color: var(--tv-text-muted);
  padding: 2px 6px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.15s;
}

.interval-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.interval-btn.active {
  background: var(--tv-bg);
  color: #fff;
}

.interval-btn.btn-sec {
  color: #38bdf8;
}

.interval-btn.btn-sec.active {
  background: rgba(56, 189, 248, 0.2);
  color: #38bdf8;
  font-weight: 700;
}

/* 实时价格卡片 */
.live-price-box {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 2px 8px;
  background: var(--tv-panel);
  border: 1px solid var(--tv-border);
  border-radius: 5px;
  font-family: var(--font-mono);
}

.live-symbol {
  font-size: 11px;
  font-weight: 700;
  color: var(--tv-text-muted);
}

.live-price {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}

.divider-v {
  width: 1px;
  height: 16px;
  background: var(--tv-border);
  margin: 0 4px;
}

/* 通用按钮 */
.btn {
  background: var(--tv-panel);
  color: var(--tv-text);
  border: 1px solid var(--tv-border);
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s;
}

.btn:hover {
  background: var(--tv-border);
  color: #fff;
}

.btn-sm {
  padding: 2px 8px;
  font-size: 11px;
}

.btn-primary {
  background: var(--tv-blue);
  border-color: var(--tv-blue);
  color: #fff;
}
.btn-primary:hover {
  background: var(--tv-blue-hover);
}

.btn-tool {
  background: var(--tv-panel);
  border: 1px solid var(--tv-border);
  font-size: 11px;
}

.btn-mirror {
  border-color: #3b82f6;
  color: #60a5fa;
}

.badge {
  background: var(--accent-yellow);
  color: #000;
  font-size: 10px;
  font-weight: 800;
  padding: 0 5px;
  border-radius: 10px;
  margin-left: 2px;
}

/* 绘图模式引导横条 — 浮动在图表顶部，不占文档流布局 */
.drawing-guide-bar {
  position: absolute;
  top: 0;
  left: 58px; /* 与左侧工具栏对齐 */
  right: 0;
  background: rgba(30, 58, 138, 0.92);
  color: #bfdbfe;
  font-size: 12px;
  padding: 4px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #2563eb;
  z-index: 50;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-100%);
  transition: opacity 0.15s, transform 0.15s;
}
.drawing-guide-bar .btn {
  pointer-events: auto;
}
.drawing-guide-bar.show {
  opacity: 1;
  transform: translateY(0);
}

/* 主工作区布局 */
.main-container {
  flex: 1;
  width: 100%;
  height: calc(100vh - 46px);
  position: relative;
  overflow: hidden;
}

.workbench-layout {
  width: 100%;
  height: 100%;
  display: flex;
}

/* 左侧 TradingView 经典侧边多功能画线工具栏 (清晰强化版 58px) */
.sidebar-tools {
  width: 58px;
  background: var(--tv-bg);
  border-right: 1px solid var(--tv-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0;
  gap: 6px;
  z-index: 20;
}

.tool-divider {
  width: 36px;
  height: 1px;
  background: var(--tv-border);
  margin: 4px 0;
}

.sidebar-btn {
  width: 48px;
  height: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  color: #cbd5e1;
  cursor: pointer;
  transition: all 0.15s;
  outline: none;
  position: relative;
  gap: 2px;
}

.sidebar-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  border-color: #363a45;
}

.sidebar-btn.active {
  background: rgba(41, 98, 255, 0.22);
  color: #38bdf8;
  border-color: #2962ff;
  box-shadow: 0 0 10px rgba(41, 98, 255, 0.4);
}

.tool-icon {
  font-size: 20px;
  font-weight: bold;
  line-height: 1;
}

.tool-label {
  font-size: 10.5px;
  font-weight: 600;
  color: #cbd5e1;
  white-space: nowrap;
  letter-spacing: 0.2px;
}

.sidebar-btn:hover .tool-label,
.sidebar-btn.active .tool-label {
  color: #ffffff;
}

/* 图表左下角视口快捷控制 (查看全部历史 / 回到最新) */
.chart-viewport-controls {
  position: absolute;
  left: 16px;
  bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(30, 34, 45, 0.85);
  border: 1px solid var(--tv-border);
  border-radius: 6px;
  padding: 4px 6px;
  backdrop-filter: blur(8px);
  z-index: 30;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.vp-btn {
  background: transparent;
  border: none;
  color: var(--tv-text);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s;
}

.vp-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* 图表画板与叠层画布 */
.chart-wrapper {
  flex: 1;
  position: relative;
  height: 100%;
  width: 100%;
}

#tv_chart_container {
  width: 100%;
  height: 100%;
}

#drawing_canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
}

#drawing_canvas.interactive {
  pointer-events: auto;
  cursor: crosshair;
}

#drawing_canvas.hover-line {
  pointer-events: auto;
  cursor: pointer;
}

#drawing_canvas.dragging-point {
  pointer-events: auto;
  cursor: move;
}

/* 选中华线时常驻的 TradingView 原生风格操作工具条 (Action Pill) */
.line-action-pill {
  position: absolute;
  display: none;
  align-items: center;
  gap: 4px;
  background: #1e222d;
  border: 1px solid #363a45;
  border-radius: 6px;
  padding: 4px 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
  z-index: 60;
  animation: fadeInPill 0.15s ease-out;
}

.line-action-pill.show {
  display: flex;
}

@keyframes fadeInPill {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.pill-btn {
  background: transparent;
  border: none;
  color: var(--tv-text);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s;
}

.pill-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.pill-btn-alert {
  background: rgba(240, 185, 11, 0.15);
  color: var(--accent-yellow);
  font-weight: 700;
}
.pill-btn-alert:hover {
  background: rgba(240, 185, 11, 0.3);
  color: #fff;
}

.pill-btn-del {
  color: #f87171;
}
.pill-btn-del:hover {
  background: rgba(242, 54, 69, 0.2);
  color: #fff;
}

.pill-divider {
  width: 1px;
  height: 14px;
  background: #363a45;
  margin: 0 2px;
}

.color-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  background-color: #38bdf8;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

/* 划线右键上下文菜单 (TradingView 深色右键菜单) */
.line-context-menu {
  position: fixed;
  display: none;
  flex-direction: column;
  background: #1e222d;
  border: 1px solid #363a45;
  border-radius: 6px;
  padding: 4px 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
  z-index: 1000;
  min-width: 180px;
  backdrop-filter: blur(8px);
}

.line-context-menu.show {
  display: flex;
}

.ctx-item {
  padding: 8px 14px;
  font-size: 12px;
  color: var(--tv-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.12s;
}

.ctx-item:hover {
  background: #2962ff;
  color: #fff;
}

.ctx-item-alert {
  color: var(--accent-yellow);
}
.ctx-item-alert:hover {
  background: rgba(240, 185, 11, 0.25);
  color: #fff;
}

.ctx-divider {
  height: 1px;
  background: #2a2e39;
  margin: 3px 0;
}

.ctx-danger {
  color: #f87171;
}
.ctx-danger:hover {
  background: #dc2626;
  color: #fff;
}

/* 警报与记录抽屉 */
.drawer-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 200;
  display: none;
}
.drawer-overlay.show { display: block; }

.drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 380px;
  background: var(--tv-panel);
  border-left: 1px solid var(--tv-border);
  z-index: 210;
  transform: translateX(100%);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  box-shadow: -8px 0 24px rgba(0,0,0,0.5);
}
.drawer.show { transform: translateX(0); }

.drawer-header {
  height: 48px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--tv-border);
}

.drawer-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.drawer-actions-bar {
  padding: 6px 16px;
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid var(--tv-border);
}

.drawer-close-btn {
  background: transparent;
  border: none;
  color: var(--tv-text-muted);
  font-size: 16px;
  cursor: pointer;
  padding: 4px;
}
.drawer-close-btn:hover { color: #fff; }

.drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* 警报卡片 (支持点击平滑定位跳转) */
.alert-card {
  background: var(--tv-card);
  border: 1px solid var(--tv-border);
  border-radius: 6px;
  padding: 10px 12px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.alert-card:hover {
  border-color: var(--tv-blue);
  background: #1c212f;
  transform: translateY(-1px);
}

.alert-card.highlight {
  border-color: #38bdf8;
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.4);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-symbol {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
}

.card-type-tag {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 3px;
}
.tag-price { background: rgba(240, 185, 11, 0.2); color: var(--accent-yellow); }
.tag-trend { background: rgba(56, 189, 248, 0.2); color: #38bdf8; }

.card-target {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--tv-text);
  display: flex;
  align-items: center;
  gap: 4px;
}

.card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--tv-text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 4px;
}

.card-actions {
  display: flex;
  gap: 6px;
}

.card-btn {
  background: transparent;
  border: none;
  font-size: 12px;
  cursor: pointer;
  opacity: 0.7;
}
.card-btn:hover { opacity: 1; }

/* 模态框 */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.65);
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
}
.modal-overlay.show { display: flex; }

.modal {
  background: var(--tv-panel);
  border: 1px solid var(--tv-border);
  border-radius: 8px;
  width: 440px;
  max-width: 95vw;
  box-shadow: 0 16px 40px rgba(0,0,0,0.7);
  display: flex;
  flex-direction: column;
}

.modal-header {
  height: 48px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--tv-border);
}

.modal-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}

.modal-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--tv-border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-row {
  display: flex;
  gap: 10px;
}
.form-row .form-group { flex: 1; }

.form-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--tv-text-muted);
}

.form-input, .form-select {
  background: var(--tv-card);
  border: 1px solid var(--tv-border);
  border-radius: 4px;
  color: #fff;
  padding: 7px 10px;
  font-size: 13px;
  outline: none;
  font-family: inherit;
}
.form-input:focus, .form-select:focus {
  border-color: var(--tv-blue);
}

/* 开关控件 */
.switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 20px;
}
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #363a45;
  transition: .2s;
  border-radius: 20px;
}
.slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .2s;
  border-radius: 50%;
}
input:checked + .slider { background-color: var(--tv-blue); }
input:checked + .slider:before { transform: translateX(20px); }

/* 消息 Toast */
.toast-container {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: #1e222d;
  color: #fff;
  border: 1px solid #363a45;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(0,0,0,0.6);
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: toastIn 0.2s ease-out;
}
.toast-success { border-left: 4px solid var(--up-green); }
.toast-error { border-left: 4px solid var(--down-red); }
.toast-info { border-left: 4px solid #38bdf8; }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}