/* J++ 案例页。颜色只用下面的语义 token；脚本也从这里读色值做渐变。 */
:root {
  --paper: #f5f3ee;
  --card: #fffdf8;
  --ink: #1c1e23;
  --ink-2: #4a4e57;
  --muted: #8a8d95;
  --line: #d9d5cc;
  --line-2: #ebe7de;
  --ok: #2e9b6b;
  --bad: #d4483a;
  --unsure: #e0a232;
  --accent: #2f6be0;
  --cell-no: #b9b2a4;
  --shadow: 0 10px 30px rgba(28, 30, 35, .14);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #121419;
    --card: #1b1e25;
    --ink: #eceef2;
    --ink-2: #b9bdc6;
    --muted: #7d828d;
    --line: #353a45;
    --line-2: #262a33;
    --ok: #3fbf86;
    --bad: #f0634f;
    --unsure: #f2b64b;
    --accent: #5b8ff5;
    --cell-no: #3b414d;
    --shadow: 0 10px 30px rgba(0, 0, 0, .5);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #121419;
  --card: #1b1e25;
  --ink: #eceef2;
  --ink-2: #b9bdc6;
  --muted: #7d828d;
  --line: #353a45;
  --line-2: #262a33;
  --ok: #3fbf86;
  --bad: #f0634f;
  --unsure: #f2b64b;
  --accent: #5b8ff5;
  --cell-no: #3b414d;
  --shadow: 0 10px 30px rgba(0, 0, 0, .5);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--paper);
  color: var(--ink);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  height: 100dvh;
  overflow: hidden;
}
a { color: inherit; }
button { font: inherit; color: inherit; }
.num { font-variant-numeric: tabular-nums; }

/* ---------- 顶栏 ---------- */
.top {
  flex: 0 0 52px;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 28px;
}
.brand { font-weight: 700; text-decoration: none; letter-spacing: .02em; white-space: nowrap; }
.top nav { display: flex; gap: 4px; flex: 1; min-width: 0; }
.top nav a {
  text-decoration: none;
  color: var(--muted);
  padding: 5px 10px;
  border-radius: 8px;
  white-space: nowrap;
  font-size: 15px;
}
.top nav a b { font-weight: 600; font-variant-numeric: tabular-nums; }
.top nav a .nm { display: none; }
.top nav a:hover { color: var(--ink); }
.top nav a.on { color: var(--ink); background: var(--line-2); }
.icon-btn {
  width: 32px; height: 32px;
  border: 0; border-radius: 50%;
  background: transparent;
  cursor: pointer;
  display: grid; place-items: center;
  color: var(--muted);
}
.icon-btn:hover { background: var(--line-2); color: var(--ink); }

main { flex: 1 1 auto; min-height: 0; position: relative; }

/* ---------- 案例页：标题带 / 主画面 / 进度条 ---------- */
.case { position: relative; height: 100%; display: grid; grid-template-rows: auto minmax(0, 1fr) 52px; }
.band {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  padding: 14px 28px 4px;
}
.head { display: flex; align-items: flex-start; gap: 10px; min-width: 0; }
.headline {
  margin: 0;
  font-size: clamp(26px, 2.5vw, 46px);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: .01em;
  transition: opacity .25s;
}
.headline.fade { opacity: 0; }
.headline .cl { white-space: nowrap; }
.stats { display: flex; gap: clamp(20px, 2.6vw, 48px); flex: 0 0 auto; }
.stat { text-align: right; }
.stat b {
  display: block;
  font-size: clamp(24px, 2.1vw, 40px);
  line-height: 1.05;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}
.stat span { font-size: 14px; color: var(--muted); }

.stage { position: relative; min-height: 0; }
.stage svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.legend {
  position: absolute;
  right: 20px;
  bottom: 6px;
  display: flex;
  gap: 16px;
  font-size: 14px;
  line-height: 1.3;
  color: var(--ink-2);
  padding: 4px 10px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  pointer-events: none;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.legend span { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
.legend svg { position: static; width: 18px; height: 12px; }
.legend:empty { display: none; }

.bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 28px;
}
.play {
  flex: 0 0 34px;
  height: 34px;
  border-radius: 50%;
  border: 0;
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  display: grid;
  place-items: center;
}
.track {
  flex: 1;
  height: 22px;
  display: flex;
  align-items: center;
  gap: 3px;
  cursor: pointer;
  touch-action: none;
}
.track i {
  display: block;
  height: 4px;
  border-radius: 2px;
  background: var(--line);
  position: relative;
  overflow: hidden;
}
.track i b { position: absolute; inset: 0 auto 0 0; background: var(--ink); width: 0; }
.track:hover i { height: 6px; }
.tabs { display: flex; gap: 4px; }
.tabs button {
  width: 30px; height: 30px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  color: var(--muted);
}
.tabs button.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* 画面元素 */
.hit { stroke: transparent; stroke-width: 14; cursor: pointer; fill: none; }
.clickable { cursor: pointer; }
.lbl { font-size: 14px; font-weight: 600; fill: var(--ink); paint-order: stroke; stroke: var(--paper); stroke-width: 4px; stroke-linejoin: round; }
.lbl.tag { font-weight: 700; }
.lbl.hint { font-weight: 500; }

/* ---------- 浮层 ---------- */
.pop {
  position: fixed;
  z-index: 20;
  width: min(380px, calc(100vw - 32px));
  max-height: min(70vh, 560px);
  overflow: auto;
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 14px 16px 16px;
  font-size: 14px;
  line-height: 1.6;
}
.pop h4 { margin: 0 28px 8px 0; font-size: 16px; }
.pop .x { position: absolute; top: 8px; right: 8px; }
.pop .lab { color: var(--muted); font-size: 14px; margin-top: 10px; }
.pop .q { background: var(--line-2); border-radius: 8px; padding: 8px 10px; }
.pop .mat { white-space: pre-wrap; border-left: 3px solid var(--line); padding-left: 10px; color: var(--ink-2); max-height: 220px; overflow: auto; }
.pop .pill { display: inline-block; padding: 0 8px; border-radius: 10px; font-size: 14px; font-weight: 600; color: #fff; }
.pill.act { background: var(--ok); } .pill.ignore { background: var(--bad); } .pill.unsure { background: var(--unsure); color: #1c1e23; } .pill.pick { background: var(--accent); }
.meter { position: relative; height: 8px; border-radius: 4px; margin: 26px 0 6px; }
.meter i { position: absolute; top: -5px; width: 3px; height: 18px; background: var(--ink); border-radius: 2px; }
.meter span { position: absolute; top: -24px; transform: translateX(-50%); font-size: 14px; font-variant-numeric: tabular-nums; }
.bars { display: grid; grid-template-columns: auto 1fr 42px; gap: 3px 8px; align-items: center; font-size: 14px; }
.bars div { height: 8px; border-radius: 4px; background: var(--line-2); overflow: hidden; }
.bars div i { display: block; height: 100%; background: var(--ink-2); }
.bars .chosen i { background: var(--accent); }
.tiers div { margin: 2px 0; }

/* ---------- 首页 ---------- */
.home {
  height: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 16px;
  padding: 6px 28px 24px;
}
.card {
  position: relative;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--line-2);
  text-decoration: none;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.card .thumb { position: relative; min-height: 0; }
.card .thumb svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.card p {
  margin: 0;
  padding: 12px 20px 16px;
  font-size: clamp(15px, 1.2vw, 20px);
  color: var(--ink-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card p b { color: var(--ink); margin-right: 10px; }
.card p .no { color: var(--muted); font-weight: 600; margin-right: 8px; font-variant-numeric: tabular-nums; }
.card p .sub { color: var(--muted); }

/* ---------- 手机竖屏：纵向排，可以上下滚，不能左右滚 ---------- */
@media (max-width: 720px) {
  body { height: auto; min-height: 100dvh; overflow-x: hidden; overflow-y: auto; }
  body.is-case { height: 100dvh; min-height: 0; overflow: hidden; }
  .top { padding: 0 12px; gap: 10px; position: sticky; top: 0; background: var(--paper); z-index: 5; }
  .top nav a { padding: 5px 7px; }
  .top nav a .nm { display: none; }
  .case { height: 100%; grid-template-rows: auto minmax(0, 1fr) 52px; }
  .band { flex-direction: column; align-items: stretch; gap: 10px; padding: 8px 16px 0; }
  .headline { font-size: 20px; min-height: 2.3em; }
  .stats { justify-content: space-between; }
  .stat { text-align: left; }
  .stat b { font-size: 24px; }
  .legend { right: 8px; bottom: 4px; gap: 10px; padding: 3px 8px; flex-wrap: nowrap; }
  .bar { padding: 8px 16px; height: 52px; }
  .home { height: auto; grid-template-columns: 1fr; grid-template-rows: none; padding: 4px 16px 20px; }
  .card { height: 300px; }
  .card p { white-space: normal; font-size: 15px; padding: 10px 14px 12px; }
  .pop { left: 0 !important; right: 0; bottom: 0; top: auto !important; width: 100%; max-height: 62vh; border-radius: 14px 14px 0 0; }
}
@media (prefers-reduced-motion: reduce) {
  .headline, .card { transition: none; }
}
.tag { font-size: 14px; font-weight: 700; pointer-events: none; }

/* ---------- 页脚（只在首页显示） ---------- */
.foot { flex: none; display: flex; flex-wrap: wrap; gap: 4px 18px; justify-content: space-between; padding: 0 28px 10px; font-size: 14px; color: var(--muted); }
.foot[hidden] { display: none; }
.foot a { color: var(--muted); }
@media (max-width: 720px) { .foot { padding: 0 16px 14px; } }