/* ============================================================
   Allen 的弱转强看板 — iOS 原生风格样式
   设计基准：iOS 17 Human Interface Guidelines
   - 系统级配色（System Colors / Grouped Background）
   - 大圆角卡片 + 毛玻璃材质（Materials: regular / thick）
   - SF Pro 字阶与 -apple-system 字体栈
   - 支持深浅色、涨红跌绿双向切换、移动端安全区
   ============================================================ */

:root {
  /* iOS System Colors（浅色） */
  --sys-blue: #007aff;
  --sys-red: #ff3b30;
  --sys-green: #34c759;
  --sys-orange: #ff9500;
  --sys-yellow: #ffcc00;
  --sys-purple: #af52de;
  --sys-pink: #ff2d55;
  --sys-teal: #30b0c7;
  --sys-indigo: #5856d6;

  --bg: #f2f2f7;
  --bg-elevated: #ffffff;
  --card: rgba(255, 255, 255, 0.72);
  --card-solid: #ffffff;
  --separator: rgba(60, 60, 67, 0.18);
  --separator-opaque: #c6c6c8;
  --fill-quaternary: rgba(116, 116, 128, 0.08);
  --fill-tertiary: rgba(118, 118, 128, 0.12);
  --fill-secondary: rgba(120, 120, 128, 0.16);

  --label: #000000;
  --label-secondary: rgba(60, 60, 67, 0.6);
  --label-tertiary: rgba(60, 60, 67, 0.3);

  --nav-material: rgba(249, 249, 249, 0.82);
  --sheet-material: rgba(242, 242, 247, 0.86);

  --radius-card: 16px;
  --radius-lg: 20px;
  --radius-sm: 10px;
  --radius-pill: 999px;

  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 6px 20px rgba(0, 0, 0, 0.05);
  --shadow-sheet: 0 -8px 40px rgba(0, 0, 0, 0.18);

  --ease-ios: cubic-bezier(0.32, 0.72, 0, 1);
  --dur: 0.34s;

  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
}

html[data-theme='dark'] {
  --sys-blue: #0a84ff;
  --sys-red: #ff453a;
  --sys-green: #30d158;
  --sys-orange: #ff9f0a;
  --sys-yellow: #ffd60a;
  --sys-purple: #bf5af2;
  --sys-pink: #ff375f;
  --sys-teal: #40c8e0;
  --sys-indigo: #5e5ce6;

  --bg: #000000;
  --bg-elevated: #1c1c1e;
  --card: rgba(28, 28, 30, 0.68);
  --card-solid: #1c1c1e;
  --separator: rgba(84, 84, 88, 0.5);
  --separator-opaque: #38383a;
  --fill-quaternary: rgba(118, 118, 128, 0.12);
  --fill-tertiary: rgba(118, 118, 128, 0.2);
  --fill-secondary: rgba(120, 120, 128, 0.28);

  --label: #ffffff;
  --label-secondary: rgba(235, 235, 245, 0.6);
  --label-tertiary: rgba(235, 235, 245, 0.3);

  --nav-material: rgba(20, 20, 22, 0.78);
  --sheet-material: rgba(28, 28, 30, 0.84);

  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.5), 0 8px 28px rgba(0, 0, 0, 0.45);
  --shadow-sheet: 0 -8px 44px rgba(0, 0, 0, 0.6);
}

/* 涨跌配色：cn = 涨红跌绿（默认）；intl = 涨绿跌红 */
html[data-color-scheme='cn'] {
  --up: var(--sys-red);
  --down: var(--sys-green);
  --up-soft: rgba(255, 59, 48, 0.14);
  --down-soft: rgba(52, 199, 89, 0.14);
}
html[data-color-scheme='intl'] {
  --up: var(--sys-green);
  --down: var(--sys-red);
  --up-soft: rgba(52, 199, 89, 0.14);
  --down-soft: rgba(255, 59, 48, 0.14);
}
html[data-theme='dark'][data-color-scheme='cn'] {
  --up-soft: rgba(255, 69, 58, 0.18);
  --down-soft: rgba(48, 209, 88, 0.18);
}
html[data-theme='dark'][data-color-scheme='intl'] {
  --up-soft: rgba(48, 209, 88, 0.18);
  --down-soft: rgba(255, 69, 58, 0.18);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display',
    'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--label);
  font-size: 15px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: none;
  transition: background-color var(--dur) var(--ease-ios), color var(--dur) var(--ease-ios);
}

/* 深色模式下的氛围光晕，让纯黑背景不至于死板 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(10, 132, 255, 0.14), transparent 62%),
    radial-gradient(900px 520px at 92% 4%, rgba(255, 69, 58, 0.1), transparent 60%);
  opacity: 0;
  transition: opacity 0.6s var(--ease-ios);
}
html[data-theme='dark'] body::before { opacity: 1; }

.tabular { font-variant-numeric: tabular-nums; font-feature-settings: 'tnum'; }

/* ── 导航栏 ─────────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 60;
  padding: calc(var(--safe-t) + 10px) 16px 10px;
  background: var(--nav-material);
  backdrop-filter: saturate(180%) blur(22px);
  -webkit-backdrop-filter: saturate(180%) blur(22px);
  border-bottom: 0.5px solid var(--separator);
}

.nav-row {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 1180px;
  margin: 0 auto;
}

.nav-title h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.44px;
}

.nav-sub {
  margin-top: 2px;
  font-size: 12px;
  color: var(--label-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  border: none;
  background: var(--fill-tertiary);
  color: var(--sys-blue);
  display: grid;
  place-items: center;
  cursor: pointer;
  position: relative;
  transition: transform 0.18s var(--ease-ios), background 0.2s;
}
.icon-btn:active { transform: scale(0.9); background: var(--fill-secondary); }
.icon-btn svg { width: 19px; height: 19px; }
.icon-btn .badge {
  position: absolute;
  top: -2px; right: -2px;
  min-width: 17px; height: 17px;
  padding: 0 4px;
  border-radius: var(--radius-pill);
  background: var(--sys-red);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  display: grid;
  place-items: center;
}
.icon-btn.spinning svg { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* 状态指示灯 */
.status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--sys-green);
  box-shadow: 0 0 0 0 rgba(52, 199, 89, 0.6);
}
.status-dot.scanning { background: var(--sys-orange); animation: pulse 1.4s infinite; }
.status-dot.error { background: var(--sys-red); }
.status-dot.closed { background: var(--label-tertiary); }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 159, 10, 0.55); }
  70% { box-shadow: 0 0 0 7px rgba(255, 159, 10, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 159, 10, 0); }
}

/* 扫描进度条 */
.scan-bar {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  overflow: hidden;
  opacity: 0;
  transition: opacity 0.25s;
}
.scan-bar.active { opacity: 1; }
.scan-bar i {
  display: block; height: 100%; width: 34%;
  background: linear-gradient(90deg, transparent, var(--sys-blue), transparent);
  animation: slide 1.1s ease-in-out infinite;
}
@keyframes slide { 0% { transform: translateX(-100%); } 100% { transform: translateX(320%); } }

/* ── 布局 ───────────────────────────────────────────────── */
.container {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 16px calc(40px + var(--safe-b));
}

.card {
  background: var(--card);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 0.5px solid var(--separator);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--label-secondary);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin: 20px 4px 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-title .hint { text-transform: none; letter-spacing: 0; font-weight: 400; }

/* ── 概览统计 ───────────────────────────────────────────── */
.overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}
.stat {
  padding: 12px 14px;
  border-radius: var(--radius-card);
  background: var(--card);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 0.5px solid var(--separator);
}
.stat .k { font-size: 11px; color: var(--label-secondary); letter-spacing: 0.2px; }
.stat .v { font-size: 25px; font-weight: 700; letter-spacing: -0.6px; margin-top: 2px; }
.stat .s { font-size: 11px; color: var(--label-tertiary); }

/* 市场涨跌分布条 */
.dist-bar {
  display: flex; height: 8px; border-radius: 4px; overflow: hidden; margin-top: 8px;
  background: var(--fill-quaternary);
}
.dist-bar span { display: block; height: 100%; transition: width 0.5s var(--ease-ios); }

/* ── 工具条 ─────────────────────────────────────────────── */
.toolbar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 12px;
}

.segmented {
  display: inline-flex;
  padding: 2px;
  background: var(--fill-tertiary);
  border-radius: var(--radius-sm);
  position: relative;
}
.segmented button {
  border: none;
  background: transparent;
  color: var(--label);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 13px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.22s var(--ease-ios), color 0.22s, transform 0.15s;
  white-space: nowrap;
}
.segmented button.active {
  background: var(--bg-elevated);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.14);
  font-weight: 600;
}
.segmented button:active { transform: scale(0.96); }

.chip {
  border: 0.5px solid var(--separator);
  background: var(--fill-quaternary);
  color: var(--label-secondary);
  font-size: 12.5px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 0.2s var(--ease-ios);
  white-space: nowrap;
}
.chip.on { background: var(--sys-blue); color: #fff; border-color: transparent; font-weight: 600; }
.chip:active { transform: scale(0.95); }

/* ── 股票卡片 ───────────────────────────────────────────── */
.pool { display: grid; gap: 10px; }

.stock-card {
  position: relative;
  padding: 14px;
  border-radius: var(--radius-card);
  background: var(--card);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 0.5px solid var(--separator);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.2s var(--ease-ios), box-shadow 0.2s;
  animation: cardIn 0.42s var(--ease-ios) both;
}
.stock-card:active { transform: scale(0.985); }
@media (hover: hover) {
  .stock-card:hover { transform: translateY(-2px); box-shadow: 0 6px 26px rgba(0, 0, 0, 0.14); }
}
@keyframes cardIn {
  from { opacity: 0; transform: translateY(12px) scale(0.985); }
  to { opacity: 1; transform: none; }
}

/* 左侧强度色条 */
.stock-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent, var(--sys-blue));
}

.sc-head { display: flex; align-items: flex-start; gap: 12px; }

.sc-name { min-width: 0; flex: 1; }
.sc-name .row1 { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }
.sc-name .nm { font-size: 17px; font-weight: 650; letter-spacing: -0.3px; }
.sc-name .cd { font-size: 12.5px; color: var(--label-secondary); }
.sc-name .row2 { margin-top: 3px; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

.tag {
  font-size: 10.5px;
  padding: 2px 7px;
  border-radius: 5px;
  background: var(--fill-tertiary);
  color: var(--label-secondary);
  font-weight: 500;
  white-space: nowrap;
}
.tag.blue { background: rgba(10, 132, 255, 0.16); color: var(--sys-blue); }
.tag.orange { background: rgba(255, 149, 0, 0.16); color: var(--sys-orange); }
.tag.purple { background: rgba(175, 82, 222, 0.16); color: var(--sys-purple); }
.tag.teal { background: rgba(48, 176, 199, 0.16); color: var(--sys-teal); }
.tag.up { background: var(--up-soft); color: var(--up); }
.tag.down { background: var(--down-soft); color: var(--down); }
.tag.danger { background: rgba(255, 59, 48, 0.16); color: var(--sys-red); font-weight: 600; }

.sc-price { text-align: right; }
.sc-price .p { font-size: 21px; font-weight: 700; letter-spacing: -0.5px; }
.sc-price .c {
  display: inline-block;
  margin-top: 2px;
  font-size: 13px;
  font-weight: 650;
  padding: 1px 7px;
  border-radius: 6px;
}
.up-txt { color: var(--up); }
.down-txt { color: var(--down); }
.up-bg { background: var(--up-soft); color: var(--up); }
.down-bg { background: var(--down-soft); color: var(--down); }

/* 信号强度环 */
.score-ring { position: relative; width: 52px; height: 52px; flex-shrink: 0; }
.score-ring svg { transform: rotate(-90deg); }
.score-ring .val {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-size: 15px; font-weight: 700; letter-spacing: -0.4px;
}
.score-ring .grade {
  position: absolute; bottom: -4px; left: 50%; transform: translateX(-50%);
  font-size: 9px; font-weight: 800; padding: 0 5px; border-radius: 4px;
  background: var(--accent); color: #fff;
}

/* 指标网格 */
.sc-metrics {
  margin-top: 11px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding-top: 10px;
  border-top: 0.5px solid var(--separator);
}
.sc-metrics div { min-width: 0; }
.sc-metrics .k { font-size: 10.5px; color: var(--label-tertiary); }
.sc-metrics .v { font-size: 14px; font-weight: 600; letter-spacing: -0.2px; }
.sc-metrics .v.muted { color: var(--label-tertiary); font-weight: 400; }

.sc-signals { margin-top: 10px; display: flex; gap: 5px; flex-wrap: wrap; }

.empty {
  padding: 52px 20px;
  text-align: center;
  color: var(--label-secondary);
}
.empty .big { font-size: 44px; margin-bottom: 10px; opacity: 0.5; }

/* ── 底部弹出面板（iOS Sheet） ─────────────────────────── */
.backdrop {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(2px);
  opacity: 0; pointer-events: none;
  transition: opacity var(--dur) var(--ease-ios);
}
.backdrop.show { opacity: 1; pointer-events: auto; }

.sheet {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 100;
  max-height: 92vh;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: var(--sheet-material);
  backdrop-filter: saturate(180%) blur(30px);
  -webkit-backdrop-filter: saturate(180%) blur(30px);
  border-top: 0.5px solid var(--separator);
  box-shadow: var(--shadow-sheet);
  transform: translateY(100%);
  transition: transform var(--dur) var(--ease-ios);
  display: flex; flex-direction: column;
}
.sheet.show { transform: translateY(0); }
@media (min-width: 780px) {
  .sheet { left: 50%; right: auto; width: 720px; transform: translate(-50%, 100%); border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
  .sheet.show { transform: translate(-50%, 0); }
}

.sheet-handle { padding: 8px 0 4px; display: grid; place-items: center; flex-shrink: 0; cursor: grab; }
.sheet-handle i { width: 36px; height: 5px; border-radius: 3px; background: var(--label-tertiary); display: block; }

.sheet-head {
  padding: 4px 18px 12px;
  display: flex; align-items: center; gap: 12px;
  border-bottom: 0.5px solid var(--separator);
  flex-shrink: 0;
}
.sheet-head h2 { margin: 0; font-size: 20px; font-weight: 700; letter-spacing: -0.4px; }
.sheet-head .sub { font-size: 12px; color: var(--label-secondary); }
.sheet-body { overflow-y: auto; padding: 14px 18px calc(28px + var(--safe-b)); -webkit-overflow-scrolling: touch; }

.close-btn {
  margin-left: auto;
  border: none; background: var(--fill-tertiary); color: var(--label-secondary);
  width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; cursor: pointer; font-size: 16px;
}
.close-btn:active { transform: scale(0.9); }

/* 详情内部 */
.detail-hero { display: flex; align-items: flex-end; gap: 14px; margin-bottom: 4px; }
.detail-hero .big { font-size: 38px; font-weight: 700; letter-spacing: -1.2px; line-height: 1; }
.detail-hero .chg { font-size: 15px; font-weight: 650; padding-bottom: 3px; }

.kv-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
  gap: 1px; background: var(--separator);
  border-radius: var(--radius-sm); overflow: hidden; margin: 12px 0;
}
.kv-grid > div { background: var(--card-solid); padding: 9px 11px; }
.kv-grid .k { font-size: 10.5px; color: var(--label-secondary); }
.kv-grid .v { font-size: 15px; font-weight: 640; letter-spacing: -0.2px; }
.kv-grid .v.na { color: var(--label-tertiary); font-weight: 400; font-size: 13px; }

.sub-card { padding: 12px 14px; border-radius: var(--radius-card); background: var(--card-solid); border: 0.5px solid var(--separator); margin-bottom: 10px; }
.sub-card h4 { margin: 0 0 8px; font-size: 13px; font-weight: 650; display: flex; align-items: center; gap: 6px; }

/* 评分拆解条 */
.bd-row { display: grid; grid-template-columns: 78px 1fr 44px; gap: 8px; align-items: center; margin-bottom: 6px; font-size: 12px; }
.bd-row .lbl { color: var(--label-secondary); }
.bd-row .track { height: 7px; border-radius: 4px; background: var(--fill-tertiary); overflow: hidden; position: relative; }
.bd-row .track i { display: block; height: 100%; border-radius: 4px; transition: width 0.6s var(--ease-ios); }
.bd-row .num { text-align: right; font-weight: 650; }
.bd-note { font-size: 11px; color: var(--label-tertiary); margin: -3px 0 7px 86px; }

/* 席位表 */
.seat-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.seat-table th { text-align: left; font-size: 11px; color: var(--label-secondary); font-weight: 500; padding: 5px 6px; border-bottom: 0.5px solid var(--separator); }
.seat-table td { padding: 7px 6px; border-bottom: 0.5px solid var(--separator); vertical-align: top; }
.seat-table tr:last-child td { border-bottom: none; }
.seat-table .nm { max-width: 210px; }
.seat-table .amt { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }

/* 警示条 */
.notice {
  display: flex; gap: 8px; align-items: flex-start;
  padding: 9px 11px; border-radius: var(--radius-sm);
  font-size: 12px; line-height: 1.5; margin-bottom: 9px;
}
.notice.warn { background: rgba(255, 149, 0, 0.13); color: var(--sys-orange); }
.notice.danger { background: rgba(255, 59, 48, 0.13); color: var(--sys-red); }
.notice.info { background: rgba(10, 132, 255, 0.12); color: var(--sys-blue); }
.notice.gray { background: var(--fill-quaternary); color: var(--label-secondary); }
.notice b { font-weight: 650; }

/* ── 提醒 Banner ────────────────────────────────────────── */
.toasts {
  position: fixed;
  top: calc(var(--safe-t) + 10px);
  left: 50%; transform: translateX(-50%);
  z-index: 200;
  width: min(420px, calc(100vw - 24px));
  display: grid; gap: 8px;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  display: flex; gap: 10px; align-items: center;
  padding: 11px 14px;
  border-radius: 14px;
  background: var(--nav-material);
  backdrop-filter: saturate(180%) blur(24px);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
  border: 0.5px solid var(--separator);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.26);
  animation: toastIn 0.42s var(--ease-ios) both;
}
.toast.out { animation: toastOut 0.32s var(--ease-ios) both; }
@keyframes toastIn { from { opacity: 0; transform: translateY(-22px) scale(0.94); } to { opacity: 1; transform: none; } }
@keyframes toastOut { to { opacity: 0; transform: translateY(-16px) scale(0.96); } }
.toast .ic { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; font-size: 15px; flex-shrink: 0; }
.toast .tx { min-width: 0; flex: 1; }
.toast .t1 { font-size: 13.5px; font-weight: 650; }
.toast .t2 { font-size: 11.5px; color: var(--label-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── 设置表单 ───────────────────────────────────────────── */
.form-group { margin-bottom: 14px; }
.form-group > label { display: block; font-size: 12px; color: var(--label-secondary); margin-bottom: 5px; }
.form-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 0.5px solid var(--separator); }
.form-row:last-child { border-bottom: none; }
.form-row .lb { font-size: 14px; }
.form-row .desc { font-size: 11px; color: var(--label-tertiary); margin-top: 1px; }

input[type='number'],
input[type='text'] {
  width: 108px; padding: 7px 10px;
  border-radius: 9px; border: 0.5px solid var(--separator);
  background: var(--fill-quaternary); color: var(--label);
  font-size: 14px; text-align: right;
  font-variant-numeric: tabular-nums;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}
input[type='number']:focus, input[type='text']:focus { border-color: var(--sys-blue); background: var(--bg-elevated); }
input[type='text'].wide { width: 100%; text-align: left; }

/* iOS 开关 */
.switch { position: relative; width: 51px; height: 31px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .sl {
  position: absolute; inset: 0; cursor: pointer;
  background: var(--fill-secondary); border-radius: 999px;
  transition: background 0.28s var(--ease-ios);
}
.switch .sl::before {
  content: ''; position: absolute;
  height: 27px; width: 27px; left: 2px; top: 2px;
  background: #fff; border-radius: 50%;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.22);
  transition: transform 0.28s var(--ease-ios);
}
.switch input:checked + .sl { background: var(--sys-green); }
.switch input:checked + .sl::before { transform: translateX(20px); }

.btn {
  border: none; border-radius: 11px; padding: 11px 16px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  transition: transform 0.15s var(--ease-ios), opacity 0.2s;
}
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--sys-blue); color: #fff; }
.btn.ghost { background: var(--fill-tertiary); color: var(--label); }
.btn.danger { background: rgba(255, 59, 48, 0.15); color: var(--sys-red); }
.btn.full { width: 100%; }
.btn-row { display: flex; gap: 9px; margin-top: 14px; }

/* ── 分时图 ─────────────────────────────────────────────── */
.chart-wrap { position: relative; margin: 6px 0 10px; }
.chart-wrap svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart-legend { display: flex; gap: 14px; font-size: 11px; color: var(--label-secondary); margin-top: 4px; flex-wrap: wrap; }
.chart-legend i { display: inline-block; width: 14px; height: 2px; border-radius: 2px; vertical-align: middle; margin-right: 4px; }

/* ── 响应式 ─────────────────────────────────────────────── */
@media (max-width: 620px) {
  .container { padding: 12px 12px calc(36px + var(--safe-b)); }
  .nav-title h1 { font-size: 19px; }
  .sc-metrics { grid-template-columns: repeat(2, 1fr); row-gap: 9px; }
  .sc-price .p { font-size: 19px; }
  .score-ring { width: 46px; height: 46px; }
  .detail-hero .big { font-size: 32px; }
  .overview { grid-template-columns: repeat(2, 1fr); }
  .seat-table .nm { max-width: 130px; font-size: 11.5px; }
  .toolbar { gap: 7px; }
  .segmented button { padding: 6px 10px; font-size: 12.5px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ── 决策追溯 ──────────────────────────────────────────── */
.sc-expand {
  align-self: center;
  width: 30px; height: 30px;
  border: none; border-radius: 50%;
  background: var(--fill-tertiary);
  color: var(--label-secondary);
  font-size: 15px; line-height: 1;
  cursor: pointer;
  transition: transform 0.2s var(--ease-ios), background 0.2s;
  flex: none;
}
.sc-expand.on { transform: rotate(180deg); background: var(--sys-blue); color: #fff; }

.card-expand { padding: 4px 2px 2px; animation: fadeIn 0.25s var(--ease-ios); }

.dt-inline { background: var(--fill-tertiary); border-radius: 14px; padding: 10px 12px; margin-top: 2px; }
.dt-inline-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.dt-inline-title { font-weight: 650; font-size: 13px; color: var(--label); }
.grade-pill { color: #fff; font-weight: 700; font-size: 12px; padding: 2px 9px; border-radius: 20px; }
.dt-inline-row { display: flex; gap: 14px; flex-wrap: wrap; }
.dt-inline-row > div { display: flex; flex-direction: column; gap: 2px; }
.dt-inline-row .k { font-size: 10.5px; color: var(--label-tertiary); }
.dt-inline-row b { font-size: 14px; font-weight: 700; }
.dt-inline-foot { margin-top: 9px; font-size: 11px; color: var(--label-tertiary); }

.dt-contrib { margin-top: 10px; }
.dt-contrib .track { display: flex; height: 10px; border-radius: 6px; overflow: hidden; background: var(--fill-tertiary); }
.dt-contrib .track i { display: block; height: 100%; }
.dt-leg-wrap { display: flex; flex-wrap: wrap; gap: 6px 12px; margin-top: 7px; }
.dt-leg { display: flex; align-items: center; font-size: 11px; color: var(--label-secondary); }
.dt-leg i { width: 10px; height: 10px; border-radius: 3px; margin-right: 4px; display: inline-block; }

.dt-head-bar { display: flex; align-items: center; justify-content: space-between; }
.dt-toggle-all { font-size: 12px; color: var(--sys-blue); cursor: pointer; padding: 4px 9px; border-radius: 8px; background: var(--fill-tertiary); }
.dt-layers { margin-top: 8px; }
.dt-layer { border-radius: 14px; background: var(--fill-tertiary); margin-bottom: 8px; overflow: hidden; }
.dt-layer-head { display: flex; align-items: center; gap: 9px; padding: 11px 12px; cursor: pointer; }
.dt-ico { font-size: 15px; }
.dt-title { flex: 1; font-weight: 600; font-size: 14px; color: var(--label); }
.dt-badge { font-size: 11.5px; font-weight: 650; padding: 3px 9px; border-radius: 20px; background: var(--fill); color: var(--label-secondary); }
.dt-badge.orange { background: rgba(255, 149, 0, 0.18); color: var(--sys-orange); }
.dt-badge.blue { background: rgba(0, 122, 255, 0.16); color: var(--sys-blue); }
.dt-badge.teal { background: rgba(48, 209, 176, 0.16); color: var(--sys-teal); }
.dt-badge.danger { background: rgba(255, 59, 48, 0.16); color: var(--sys-red); }
.dt-badge.gray { background: var(--fill); color: var(--label-tertiary); }
.dt-badge.grade-S { background: var(--sys-red); color: #fff; }
.dt-badge.grade-A { background: var(--sys-orange); color: #fff; }
.dt-badge.grade-B { background: var(--sys-yellow); color: #1c1c1e; }
.dt-badge.grade-C { background: var(--sys-teal); color: #1c1c1e; }
.dt-badge.grade-D { background: var(--label-tertiary); color: #fff; }
.dt-chev { transition: transform 0.2s var(--ease-ios); color: var(--label-tertiary); font-size: 13px; }
.dt-layer.open .dt-chev { transform: rotate(90deg); }
.dt-layer-body { max-height: 0; overflow: hidden; transition: max-height 0.3s var(--ease-ios); }
.dt-layer.open .dt-layer-body { max-height: 1800px; }
.dt-sec { padding: 2px 12px 12px; }
.dt-sec-t { font-size: 11.5px; color: var(--label-tertiary); margin: 8px 0 5px; font-weight: 600; letter-spacing: 0.3px; }
.dt-params { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.dt-params td { padding: 5px 6px; border-bottom: 1px solid var(--separator); vertical-align: top; }
.dt-params .dt-k { color: var(--label-secondary); white-space: nowrap; width: 38%; }
.dt-params .dt-v { color: var(--label); font-variant-numeric: tabular-nums; }
.dt-note { font-size: 11px; color: var(--label-tertiary); margin-top: 3px; }

.dt-step { padding: 8px 10px; border-radius: 11px; background: var(--fill); margin-bottom: 7px; border-left: 3px solid var(--label-tertiary); }
.dt-step.ok { border-left-color: var(--sys-green); }
.dt-step.no { border-left-color: var(--sys-red); }
.dt-step.pen { border-left-color: var(--sys-red); background: rgba(255, 59, 48, 0.07); }
.dt-step.f { border-left-color: var(--sys-blue); }
.dt-step.note { border-left-color: var(--label-tertiary); background: transparent; }
.dt-step-top { display: flex; align-items: center; gap: 7px; }
.dt-step-mark { width: 16px; height: 16px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; background: var(--fill-tertiary); color: var(--label-secondary); flex: none; }
.dt-step.ok .dt-step-mark { background: var(--sys-green); color: #fff; }
.dt-step.no .dt-step-mark, .dt-step.pen .dt-step-mark { background: var(--sys-red); color: #fff; }
.dt-step-title { font-weight: 600; font-size: 13px; color: var(--label); }
.dt-step-expr { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; color: var(--label-secondary); margin-top: 5px; word-break: break-word; }
.dt-step-th { font-size: 11.5px; color: var(--sys-blue); margin-top: 3px; }
.dt-step-note { font-size: 11.5px; color: var(--label-tertiary); margin-top: 3px; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }


/* ── 只读模式 ─────────────────────────────────────────────── */
.ro-badge {
  display: inline-block;
  vertical-align: middle;
  margin-left: 6px;
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: .02em;
  color: var(--sys-blue);
  background: color-mix(in srgb, var(--sys-blue) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--sys-blue) 34%, transparent);
}
.ro-banner {
  margin: 4px 0 2px;
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--label-secondary);
  background: var(--fill-tertiary);
  border: 1px solid var(--separator);
}
.ro-banner b { color: var(--label-primary); }
.form-row input:disabled,
.form-row .segmented button:disabled { opacity: .5; cursor: not-allowed; }
.form-row .switch input:disabled + .sl { opacity: .5; cursor: not-allowed; }