:root {
  --bg: #120f0d;
  --bg-soft: #1b1512;
  --panel: rgba(23, 18, 14, 0.9);
  --panel-strong: rgba(31, 23, 18, 0.95);
  --text: #f7efe7;
  --muted: #c9b49d;
  --line: rgba(255, 255, 255, 0.08);
  --accent: #ff8a3d;
  --accent-soft: rgba(255, 138, 61, 0.15);
  --up: #2fd98b;
  --down: #ff5f5f;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 138, 61, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(47, 217, 139, 0.1), transparent 20%),
    linear-gradient(180deg, #140f0b 0%, #0c0907 100%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
  font-size: 14px;
}

.shell {
  width: min(1400px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.hero,
.panel {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  gap: 24px;
  grid-template-columns: 1.4fr 0.8fr;
  border-radius: 28px;
  padding: 28px;
}

.eyebrow,
.panel-kicker,
.meta-label,
.account-note,
.legend,
.odds-meta,
.history-card small,
.panel-stats,
.next-market span {
  font-family: "IBM Plex Mono", monospace;
}

.eyebrow,
.panel-kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1,
.panel h2 {
  margin: 0;
  letter-spacing: -0.01em;
}

.panel h2 {
  font-size: 18px;
  font-weight: 600;
}

.hero h1 {
  font-size: clamp(32px, 4vw, 54px);
  line-height: 0.96;
}

.hero-text {
  max-width: 760px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.hero-meta {
  display: grid;
  gap: 16px;
}

.meta-card {
  border-radius: 20px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.meta-card.accent {
  background: linear-gradient(135deg, rgba(255, 138, 61, 0.2), rgba(255, 138, 61, 0.06));
}

.meta-label {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.meta-card strong {
  font-size: 24px;
  line-height: 1.2;
}

.grid {
  display: grid;
  gap: 18px;
  margin-top: 18px;
  grid-template-columns: 1.3fr 0.7fr;
}

.panel {
  border-radius: 26px;
  padding: 22px;
}

.chart-panel,
.history-panel {
  min-height: 440px;
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.panel-stats {
  display: grid;
  gap: 6px;
  justify-items: end;
  color: var(--muted);
  font-size: 12px;
}

#trend-chart {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent),
    rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.legend {
  display: flex;
  gap: 18px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 12px;
}

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  margin-right: 6px;
}

.dot.up {
  background: var(--up);
}

.dot.down {
  background: var(--down);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
}

.odds-grid {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.odds-card {
  border-radius: 20px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: var(--panel-strong);
}

.up-card {
  background: linear-gradient(135deg, rgba(47, 217, 139, 0.18), rgba(47, 217, 139, 0.05));
}

.down-card {
  background: linear-gradient(135deg, rgba(255, 95, 95, 0.18), rgba(255, 95, 95, 0.05));
}

.odds-title {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 14px;
}

.odds-price {
  display: block;
  font-size: clamp(36px, 4vw, 52px);
  line-height: 1;
  margin-bottom: 14px;
}

.odds-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
}

.odds-meta b {
  color: var(--text);
}

.odds-extra {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 11px;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed rgba(255,255,255,0.06);
}

.odds-extra b {
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
}

.next-market {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.next-market strong {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
}

.next-market span {
  color: var(--muted);
  font-size: 12px;
}

.history-list {
  display: grid;
  gap: 12px;
}

.history-card {
  display: grid;
  gap: 8px;
  border-radius: 18px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.history-card strong {
  font-size: 16px;
}

.history-card small,
.history-card span {
  color: var(--muted);
}

.history-prices {
  display: flex;
  gap: 12px;
}

.history-prices b {
  color: var(--text);
}

.account-form {
  display: grid;
  gap: 14px;
}

.account-form label {
  display: grid;
  gap: 8px;
}

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

.account-form input,
.account-form select,
.submit-button {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 14px 16px;
  color: var(--text);
  font: inherit;
  background: rgba(255, 255, 255, 0.04);
}

.account-form input:focus,
.account-form select:focus {
  outline: 2px solid rgba(255, 138, 61, 0.35);
  border-color: rgba(255, 138, 61, 0.6);
}

.mode-fields {
  display: grid;
  gap: 14px;
}

.hidden {
  display: none;
}

.submit-button {
  cursor: pointer;
  background: linear-gradient(135deg, #ff8a3d, #ffb86d);
  color: #1a130d;
  font-weight: 700;
}

.account-note {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.account-result {
  margin: 18px 0 0;
  min-height: 132px;
  padding: 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--muted);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ═══ 策略模拟面板 ═══ */

.strategy-container {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(23, 18, 14, 0.95), rgba(31, 23, 18, 0.9));
  border: 1px solid rgba(255, 200, 100, 0.12);
}

.strategy-panel {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(23, 18, 14, 0.95), rgba(31, 23, 18, 0.9));
  border: 1px solid rgba(255, 200, 100, 0.12);
}

/* ─── 策略 Tab 切换 ─── */
.strategy-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  padding: 4px;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.strategy-tab {
  flex: 1;
  padding: 10px 16px;
  border: none;
  border-radius: 11px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s ease;
  letter-spacing: 0.02em;
}

.strategy-tab:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.strategy-tab.active {
  color: #1a130d;
  background: linear-gradient(135deg, var(--accent), #ffb86d);
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(255, 138, 61, 0.3);
}

.strategy-tab-body {
  display: none;
}

.strategy-tab-body.active {
  display: block;
}

.strategy-controls {
  display: flex;
  gap: 8px;
}

.strategy-btn {
  padding: 8px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.strategy-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.strategy-btn.paused {
  background: rgba(47, 217, 139, 0.15);
  border-color: rgba(47, 217, 139, 0.3);
}

.strategy-btn-danger {
  border-color: rgba(255, 95, 95, 0.2);
}

.strategy-btn-danger:hover {
  background: rgba(255, 95, 95, 0.15);
  border-color: rgba(255, 95, 95, 0.4);
}

/* 统计概览 */
.strategy-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-value {
  font-size: 18px;
  font-weight: 600;
}

.pnl-positive {
  color: var(--up);
}

.pnl-negative {
  color: var(--down);
}

/* 策略区块 */
.strategy-section {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.strategy-section h3 {
  margin: 0 0 12px;
  font-size: 15px;
  color: var(--muted);
}

/* 信号卡片 */
.signal-card {
  padding: 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all 0.3s ease;
}

.signal-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.signal-icon {
  font-size: 20px;
}

.signal-action {
  font-size: 18px;
  font-weight: 700;
}

.signal-reason {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  margin-bottom: 10px;
}

.signal-details {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.signal-detail {
  padding: 4px 10px;
  border-radius: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
}

.signal-waiting {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.08);
}

.signal-buy {
  background: linear-gradient(135deg, rgba(47, 217, 139, 0.15), rgba(47, 217, 139, 0.05));
  border-color: rgba(47, 217, 139, 0.25);
}

.signal-watch {
  background: linear-gradient(135deg, rgba(255, 200, 50, 0.12), rgba(255, 200, 50, 0.03));
  border-color: rgba(255, 200, 50, 0.2);
}

.signal-skip {
  background: linear-gradient(135deg, rgba(255, 95, 95, 0.12), rgba(255, 95, 95, 0.03));
  border-color: rgba(255, 95, 95, 0.2);
}

/* 策略规则说明 */
.strategy-rules ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 8px;
}

.strategy-rules li {
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 13px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.04);
  line-height: 1.5;
}

.strategy-rules li b {
  color: var(--accent);
}

/* 交易记录 */
.strategy-trades {
  display: grid;
  gap: 8px;
}

.trade-card {
  display: grid;
  gap: 6px;
  padding: 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 13px;
}

.trade-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.trade-side {
  font-weight: 700;
  font-size: 15px;
}

.trade-up {
  color: var(--up);
}

.trade-down {
  color: var(--down);
}

.trade-status {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
}

.trade-info {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
}

.trade-time {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: rgba(201, 180, 157, 0.6);
}

.trade-empty {
  color: var(--muted);
  font-size: 13px;
}

/* ═══ 参数下拉菜单 ═══ */
.params-menu-wrap {
  position: relative;
}

.params-menu-btn {
  white-space: nowrap;
}

.params-menu-btn.active {
  background: rgba(255, 138, 61, 0.2);
  border-color: rgba(255, 138, 61, 0.4);
  color: var(--accent);
}

.params-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 100;
  min-width: 340px;
  padding: 16px;
  border-radius: 16px;
  background: var(--panel-strong);
  border: 1px solid rgba(255, 200, 100, 0.18);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(16px);
  animation: dropdown-in 0.18s ease-out;
}

.params-dropdown.open {
  display: block;
}

@keyframes dropdown-in {
  from { opacity: 0; transform: translateY(-6px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.params-dropdown-title {
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.param-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 8px;
}

.param-grid label {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  font-size: 12px;
  color: var(--muted);
}

.param-grid label span {
  white-space: nowrap;
  min-width: 60px;
}

.param-grid input[type="number"] {
  width: 55px;
  padding: 4px 6px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(0,0,0,0.3);
  color: var(--text);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  text-align: center;
}

.param-grid input[type="number"]:focus {
  outline: none;
  border-color: var(--accent);
}

/* ═══ 布林带策略面板 ═══ */
.boll-panel {
  border-color: rgba(100, 149, 237, 0.15);
}

.boll-panel canvas {
  width: 100%;
  height: auto;
  border-radius: 12px;
  background: rgba(0,0,0,0.2);
}

.boll-indicators {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 6px;
}

.indi-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.04);
  font-size: 13px;
  color: var(--muted);
}

.indi-row b {
  color: var(--text);
  font-family: "IBM Plex Mono", monospace;
}

@media (max-width: 980px) {
  .hero,
  .grid {
    grid-template-columns: 1fr;
  }

  .panel-head {
    flex-direction: column;
  }

  .panel-stats {
    justify-items: start;
  }

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

  .strategy-controls {
    width: 100%;
    justify-content: stretch;
  }

  .strategy-controls .strategy-btn {
    flex: 1;
  }
}

/* ═══ 窗口导航 ═══ */
.window-nav {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

.nav-btn {
  padding: 8px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text);
}

.nav-btn-active {
  background: linear-gradient(135deg, rgba(255, 138, 61, 0.25), rgba(255, 138, 61, 0.1));
  border-color: rgba(255, 138, 61, 0.4);
  color: var(--accent);
  font-weight: 600;
}

/* ═══ 1分钟策略面板 ═══ */
.scalp-panel {
  border-color: rgba(255, 200, 50, 0.15);
}

/* 七维评分可视化 */
.scalp-score-grid {
  padding: 14px;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.score-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
}

.score-bar {
  font-family: "IBM Plex Mono", monospace;
  font-size: 16px;
  letter-spacing: 2px;
  color: var(--accent);
}

.score-dims {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 6px;
}

.score-dim {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 12px;
  transition: all 0.2s ease;
}

.score-pass {
  background: rgba(47, 217, 139, 0.1);
  border: 1px solid rgba(47, 217, 139, 0.2);
  color: var(--up);
}

.score-fail {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--muted);
}

.score-check {
  font-size: 14px;
}

.score-name {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
}

/* ═══ 增强历史卡片 ═══ */
.history-card .btc-change {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.btc-change-up {
  color: var(--up);
  font-weight: 600;
}

.btc-change-down {
  color: var(--down);
  font-weight: 600;
}

.btc-price-detail {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
}

.direction-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
}

.direction-up {
  background: rgba(47, 217, 139, 0.15);
  color: var(--up);
}

.direction-down {
  background: rgba(255, 95, 95, 0.15);
  color: var(--down);
}