/* 刻声 · 学院路馆藏分区图。色板沿用冻结五色；--deep 是石墨蓝压暗，只用作展柜底。 */
@font-face {
  font-family: "KS Fangsong Plan";
  src: url("../fonts/ks-fangsong-plan.woff2") format("woff2");
  font-display: swap;
}

:root {
  --alu: #D3D7DA;
  --ink: #24304A;
  --lathe: #515C6A;
  --paper: #F2F4F3;
  --scope: #E6BE3A;
  --deep: #151C2C;
  --fang: "KS Fangsong Plan", "KS Fangsong", "FangSong", "STFangsong", "Noto Serif CJK SC", serif;
  --hei: "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", system-ui, sans-serif;
  --u: 8px;
  --card: 392px;
}

* { box-sizing: border-box; }

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

body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--card);
  background: var(--deep);
  color: var(--ink);
  font: 400 1rem/1.6 var(--hei);
  overflow: hidden;
}

/* —— 展柜：三维校园 —— */
.stage {
  position: relative;
  min-height: 0;
  overflow: hidden;
  background:
    radial-gradient(70% 62% at 46% 48%, #34425F 0%, #2A3651 38%, #1C2539 72%, var(--deep) 100%);
}

#gl {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  outline: none;
  cursor: grab;
}
#gl.is-pointing { cursor: pointer; }
#gl.is-scratching, #gl:active { cursor: grabbing; }
#gl:focus-visible { box-shadow: inset 0 0 0 2px var(--paper); }

.labels { position: absolute; inset: 0; pointer-events: none; }

/* 总览保持一件事：校园是一个正在转的物件。地点名只在选中、悬停、寻片或补钉时出现。 */
.labels .tag.is-place { display: none; }
.labels .tag.is-place.is-here,
.labels .tag.is-place.is-flash,
.labels .tag.is-place.is-who { display: block; }

.tag {
  position: absolute;
  left: 0;
  top: 0;
  padding-bottom: 26px;
  font: 400 0.875rem/1.2 var(--fang);
  white-space: nowrap;
  will-change: transform;
}
.tag span {
  display: block;
  padding: 3px 7px 4px;
  background: var(--paper);
  color: var(--ink);
  border-radius: 2px;
}
.tag::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 1px;
  height: 26px;
  background: var(--paper);
  opacity: 0.85;
}
.tag.is-zone span {
  background: var(--ink);
  color: var(--paper);
  font-size: 1.125rem;
  padding: 4px 10px 5px;
}
.tag.is-place span { font-family: var(--hei); font-size: 0.8125rem; }
.tag.is-place b { font-weight: 400; color: var(--lathe); margin-left: 0.4em; }
.tag.is-playing span { box-shadow: 0 0 0 2px var(--scope); }

.back-home {
  position: absolute;
  left: calc(var(--u) * 3);
  top: calc(var(--u) * 2.5);
  color: var(--paper);
  font-size: 0.875rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 244, 243, 0.45);
  padding-bottom: 1px;
}
.back-home:hover { border-bottom-color: var(--paper); }
.back-home:focus-visible { outline: 2px solid var(--paper); outline-offset: 4px; }

.hour {
  position: absolute;
  right: calc(var(--u) * 3);
  top: calc(var(--u) * 2.5);
  margin: 0;
  color: var(--paper);
  font: 400 0.9375rem/1 var(--fang);
  letter-spacing: 0.12em;
  opacity: 0.82;
}

.legend {
  position: absolute;
  right: calc(var(--u) * 3);
  top: calc(var(--u) * 5.5);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--alu);
  font-size: 0.8125rem;
  line-height: 1;
}
.legend li::after {
  content: "";
  display: inline-block;
  width: 14px;
  height: 10px;
  margin-left: 8px;
  vertical-align: -1px;
  background: var(--c);
  border-radius: 1px;
}

.slots {
  position: absolute;
  left: calc(var(--u) * 3);
  bottom: calc(var(--u) * 6.5);
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  border: 0;
}
.slots legend {
  float: left;
  margin-right: calc(var(--u) * 1.25);
  color: var(--alu);
  font-size: 0.875rem;
}
.slots button {
  min-width: 44px;
  min-height: 32px;
  padding: 0 10px;
  border: 1px solid rgba(211, 215, 218, 0.35);
  border-radius: 2px;
  background: transparent;
  color: var(--paper);
  font: 400 0.9375rem/1 var(--fang);
  cursor: pointer;
}
.slots button:hover { border-color: var(--alu); }
.slots button[aria-pressed="true"] { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.slots button:focus-visible { outline: 2px solid var(--paper); outline-offset: 2px; }

.hint {
  position: absolute;
  left: calc(var(--u) * 3);
  bottom: calc(var(--u) * 2);
  margin: 0;
  max-width: 46em;
  color: var(--alu);
  font-size: 0.8125rem;
  opacity: 0.85;
}

.nogl {
  position: absolute;
  inset: 40% 10% auto;
  color: var(--paper);
  text-align: center;
}

/* —— 展签：右侧馆藏卡 —— */
.card {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--paper);
  color: var(--ink);
  overflow: auto;
}
#card-body { padding: calc(var(--u) * 4) calc(var(--u) * 3.5) calc(var(--u) * 2); }

.card h1, .card h2 {
  margin: 0;
  font: 400 2.25rem/1.15 var(--fang);
  letter-spacing: 0.02em;
}
.card h2 { font-size: 2rem; }
.lede { margin: calc(var(--u) * 1.5) 0 calc(var(--u) * 3); color: var(--lathe); font-size: 0.9375rem; line-height: 1.7; }
.thesis { margin: calc(var(--u) * 2.5) 0 4px; color: var(--ink); font: 400 1.2rem/1.5 var(--fang); }
.theme-mark { position: absolute; top: 16px; left: 50%; z-index: 4; transform: translateX(-50%); padding: 8px 14px; border-left: 3px solid var(--scope); background: rgba(8,10,16,.78); color: var(--paper); font: 400 .8rem/1 var(--fang); letter-spacing: .08em; box-shadow: 0 4px 18px rgba(0,0,0,.3); }
.theme-mark[hidden] { display: none; }
.theme-event { display: grid; gap: 4px; margin: calc(var(--u) * 2) 0 0; padding: 10px 12px; border-left: 3px solid #C52233; background: linear-gradient(90deg, rgba(197,34,51,.10), transparent); color: var(--ink); }
.theme-event b { font: 400 1.1rem/1.3 var(--fang); color: #8E1E2D; }
.theme-event span { color: var(--lathe); font-size: .75rem; line-height: 1.5; }
:root[data-theme-season="spring"] { --paper: #F1F4EA; --scope: #D5A63B; }
:root[data-theme-season="summer"] { --paper: #EEF4F1; --scope: #D6B13E; }
:root[data-theme-season="autumn"] { --paper: #F3F0E8; --scope: #D09A3A; }
:root[data-theme-season="winter"] { --paper: #F1F3F5; --scope: #C7A84A; }
:root[data-theme-event="anniversary-74"] { --ink: #173A67; --lathe: #465B72; --scope: #C52233; --paper: #F5F2EB; }
:root[data-theme-event="anniversary-74"] .back-home,
:root[data-theme-event="anniversary-74"] .hour { color: #F5F2EB; }


.zones { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--alu); }
.zones li { border-bottom: 1px solid var(--alu); }
.zones button {
  display: flex;
  align-items: baseline;
  width: 100%;
  min-height: 48px;
  padding: 10px 2px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: 400 1.1875rem/1.3 var(--fang);
  text-align: left;
  cursor: pointer;
}
.zones button .n { margin-left: auto; font: 400 0.875rem/1 var(--hei); color: var(--lathe); }
.zones button:hover, .zones button.is-hover { background: linear-gradient(90deg, var(--alu), transparent 85%); }
.zones button:focus-visible { outline: 2px solid var(--ink); outline-offset: -2px; }
.zones button[disabled] { color: var(--lathe); cursor: default; }

.back {
  margin: 0 0 calc(var(--u) * 2.5) -2px;
  padding: 4px 2px;
  border: 0;
  border-bottom: 1px solid var(--lathe);
  background: none;
  color: var(--lathe);
  font: 400 0.875rem/1.3 var(--hei);
  cursor: pointer;
}
.back:hover { color: var(--ink); border-bottom-color: var(--ink); }
.back:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

/* 地点 × 时段 */
.grid { width: 100%; border-collapse: collapse; table-layout: fixed; }
.grid caption { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.grid th, .grid td { padding: 0; text-align: center; vertical-align: middle; }
.grid thead th {
  height: 30px;
  color: var(--lathe);
  font: 400 0.8125rem/1 var(--fang);
  border-bottom: 1px solid var(--ink);
}
.grid thead th:first-child { width: 31%; text-align: left; }
.grid thead th.is-slot { color: var(--ink); background: var(--alu); }
.grid tbody th {
  padding: 10px 6px 10px 0;
  text-align: left;
  font: 400 1rem/1.3 var(--fang);
  border-bottom: 1px solid var(--alu);
}
.grid tbody td { border-bottom: 1px solid var(--alu); }
.grid td.is-slot { background: rgba(211, 215, 218, 0.55); }
.grid .cell { display: flex; flex-wrap: wrap; justify-content: center; gap: 2px; padding: 4px 0; }

.clip {
  position: relative;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}
/* 每张声片画成一张小盘：外圈 + 两道刻纹 + 盘心 */
.clip::before {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--paper) 0 18%, var(--ink) 19% 30%, transparent 31% 44%, var(--ink) 45% 52%, transparent 53% 66%, var(--ink) 67% 100%);
}
.clip:hover::before { inset: 1px; }
.clip[aria-pressed="true"]::before {
  background:
    radial-gradient(circle, var(--ink) 0 18%, var(--scope) 19% 30%, var(--ink) 31% 44%, var(--scope) 45% 52%, var(--ink) 53% 66%, var(--scope) 67% 100%);
}
.clip:focus-visible { outline: 2px solid var(--ink); outline-offset: 1px; }
.clip.is-off { opacity: 0.3; }

/* 正在放 */
.player {
  margin-top: auto;
  padding: calc(var(--u) * 2.5) calc(var(--u) * 3.5) calc(var(--u) * 2.5);
  background: var(--ink);
  color: var(--paper);
}
.clip-no { margin: 0; font: 400 1.3125rem/1.2 var(--fang); letter-spacing: 0.03em; font-variant-numeric: tabular-nums; }
.clip-note { margin: 6px 0 0; font: 400 1.125rem/1.4 var(--fang); }
.clip-meta { margin: 4px 0 0; color: var(--alu); font-size: 0.8125rem; }
.controls { display: flex; gap: var(--u); margin-top: calc(var(--u) * 1.75); }
.controls button {
  min-width: 72px;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--alu);
  border-radius: 2px;
  background: transparent;
  color: var(--paper);
  font: 400 1rem/1 var(--fang);
  cursor: pointer;
}
.controls button:first-child { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.controls button:focus-visible { outline: 2px solid var(--scope); outline-offset: 2px; }

.status { min-height: 1.4em; margin: 0; padding: 0 calc(var(--u) * 3.5); color: var(--lathe); font-size: 0.8125rem; }
.player + .status { background: var(--ink); color: var(--alu); padding-bottom: 10px; }

.credit { padding: calc(var(--u) * 1.5) calc(var(--u) * 3.5) calc(var(--u) * 2.5); color: var(--lathe); font-size: 0.75rem; line-height: 1.6; }
.credit p { margin: 0 0 4px; }

@media (max-width: 880px) {
  html, body { height: auto; min-height: 100%; }
  body { grid-template-columns: minmax(0, 1fr); grid-template-rows: 60vh auto; overflow-x: hidden; overflow-y: auto; }
  .card, #card-body, .voices li, .voice { min-width: 0; }
  .card { overflow: visible; }
  .slots { left: var(--u); right: var(--u); bottom: calc(var(--u) * 5.5); flex-wrap: wrap; }
  .slots legend { display: none; }
  .slots button { min-width: 40px; padding: 0 6px; }
  .hint { left: var(--u); right: var(--u); font-size: 0.75rem; }
  .back-home { left: calc(var(--u) * 2); }
  .hour { right: calc(var(--u) * 2); font-size: 0.8125rem; }
  .legend { left: calc(var(--u) * 2); right: calc(var(--u) * 2); top: calc(var(--u) * 5); flex-direction: row; flex-wrap: wrap; justify-content: flex-end; font-size: 0.75rem; gap: 4px 10px; }
  #card-body { padding: calc(var(--u) * 3) calc(var(--u) * 2.5) var(--u); }
  .card h1 { font-size: 1.75rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* —— 第六轮：我的、年轮、在这里刻、落款、回执 —— */
.mine-link {
  display: flex;
  align-items: baseline;
  width: 100%;
  min-height: 48px;
  margin: 0 0 calc(var(--u) * 2);
  padding: 10px 12px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--ink);
  color: var(--paper);
  font: 400 1.1875rem/1.3 var(--fang);
  cursor: pointer;
}
.mine-link .n { margin-left: auto; font: 400 0.875rem/1 var(--hei); color: var(--alu); }
.mine-link:focus-visible { outline: 2px solid var(--scope); outline-offset: 2px; }

.place-link {
  padding: 0;
  border: 0;
  border-bottom: 1px solid var(--lathe);
  background: none;
  color: var(--ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.place-link:hover { border-bottom-color: var(--ink); }
.place-link:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.clip.is-mine::before {
  background:
    radial-gradient(circle, var(--paper) 0 18%, var(--scope) 19% 30%, transparent 31% 44%, var(--scope) 45% 52%, transparent 53% 66%, var(--scope) 67% 100%);
}

.sub { margin: calc(var(--u) * 3) 0 var(--u); font: 400 1.0625rem/1.3 var(--fang); color: var(--ink); }
.fine { margin: 6px 0 0; color: var(--lathe); font-size: 0.75rem; line-height: 1.6; }

.rings { margin: 0 0 calc(var(--u) * 2); }
.rings svg { display: block; width: 100%; max-width: 300px; margin: 0 auto; }
.rings figcaption { color: var(--lathe); font-size: 0.75rem; line-height: 1.6; text-align: center; }
.rings .ring { fill: none; stroke: var(--alu); stroke-width: 1.4; }
.rings .ring.is-now { stroke: var(--lathe); stroke-dasharray: 3 3; }
.rings .hour-mark { fill: var(--lathe); font: 400 9px var(--hei); }
.rings .dot { fill: var(--ink); cursor: pointer; }
.rings .dot.is-mine { fill: var(--scope); stroke: var(--ink); stroke-width: 1.2; }
.rings .dot.is-on { stroke: var(--ink); stroke-width: 2.4; }
.rings .dot.is-off { opacity: 0.25; }
.rings .dot.is-new { animation: ks-ping 1.6s ease-out 2; }
@keyframes ks-ping { 0% { stroke-width: 10; stroke: rgba(230, 190, 58, 0.9); } 100% { stroke-width: 1.2; } }

.rec {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 56px;
  margin-top: var(--u);
  border: 0;
  border-radius: 2px;
  background: var(--ink);
  color: var(--paper);
  font: 400 1.1875rem/1 var(--fang);
  letter-spacing: 0.06em;
  cursor: pointer;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.rec i { width: 12px; height: 12px; border-radius: 50%; background: var(--scope); }
.rec.is-rec { background: var(--scope); color: var(--ink); }
.rec.is-rec i { background: var(--ink); animation: ks-blink 1s steps(2) infinite; }
.rec:focus-visible { outline: 2px solid var(--scope); outline-offset: 3px; }
@keyframes ks-blink { 50% { opacity: 0.2; } }

.voices { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--alu); }
.voices li { display: flex; align-items: center; gap: 8px; border-bottom: 1px solid var(--alu); }
.voice {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 12px;
  flex: 1;
  min-height: 48px;
  padding: 8px 2px 8px 12px;
  border: 0;
  border-left: 3px solid transparent;
  background: none;
  color: var(--ink);
  font: 400 0.875rem/1.4 var(--hei);
  text-align: left;
  cursor: pointer;
}
.voice .w { color: var(--ink); min-width: 0; overflow-wrap: anywhere; }
.voice .a { color: var(--lathe); text-align: right; font-family: var(--fang); font-size: 0.9375rem; }
.voice .t { grid-column: 1 / -1; color: var(--lathe); font-size: 0.8125rem; }
.voice.is-mine { border-left-color: var(--scope); }
.voice[aria-pressed="true"] { background: var(--alu); }
.voice.is-off { opacity: 0.4; }
.voice:hover { background: linear-gradient(90deg, var(--alu), transparent 85%); }
.voice:focus-visible { outline: 2px solid var(--ink); outline-offset: -2px; }

.landed { margin: 0 0 calc(var(--u) * 2); padding: calc(var(--u) * 2); background: var(--ink); color: var(--paper); border-radius: 2px; }
.landed h3 { margin: 0 0 6px; font: 400 1.125rem/1.3 var(--fang); color: var(--scope); }
.landed p { margin: 0 0 8px; font: 400 1rem/1.7 var(--fang); overflow-wrap: anywhere; }
.landed .sig { color: var(--alu); font: 400 0.875rem/1.4 var(--hei); }
.landed .warn { color: var(--scope); font: 400 0.8125rem/1.5 var(--hei); }
.landed .fine { color: var(--alu); }
.landed .sig-form .sig-title, .landed .sig-form label { color: var(--paper); }

.row { display: flex; flex-wrap: wrap; gap: var(--u); margin-top: var(--u); }
.act {
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--paper);
  border-radius: 2px;
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1 var(--fang);
  cursor: pointer;
}
.act.ghost { background: transparent; color: inherit; border-color: currentColor; }
.act.small { min-height: 32px; padding: 0 10px; font-size: 0.875rem; border-color: var(--ink); background: transparent; white-space: nowrap; }
.card-id .act, #card-body > .sig-form .act { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.card-id .act.ghost { background: transparent; color: var(--ink); }
.act:focus-visible { outline: 2px solid var(--scope); outline-offset: 2px; }

.card-id { margin: 0 0 calc(var(--u) * 2); padding: calc(var(--u) * 2) 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--alu); }
.card-id h3 { margin: 0 0 4px; font: 400 1.125rem/1.3 var(--fang); }
.card-id p { margin: 0; }

.sig-form { margin-top: var(--u); }
.sig-title { margin: 0 0 6px; font: 400 0.9375rem/1.4 var(--fang); }
.sig-fields { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: 6px; }
.sig-fields label { min-width: 0; }
.sig-fields label:last-child { grid-column: 1 / -1; }
.sig-form label { display: flex; flex-direction: column; gap: 2px; font-size: 0.75rem; color: var(--lathe); }
.sig-form input {
  width: 100%;
  min-width: 0;
  min-height: 36px;
  padding: 4px 6px;
  border: 1px solid var(--lathe);
  border-radius: 2px;
  background: var(--paper);
  color: var(--ink);
  font: 400 0.9375rem/1.2 var(--hei);
}
.sig-form input:focus-visible { outline: 2px solid var(--scope); outline-offset: 1px; }
.sig-form .act { margin-top: var(--u); }

.tag.is-here span { box-shadow: 0 0 0 2px var(--scope); }
.tag.is-empty span { background: var(--alu); color: var(--lathe); }

.receipt { max-width: min(560px, calc(100vw - 32px)); max-height: calc(100vh - 32px); padding: calc(var(--u) * 3); border: 0; border-radius: 2px; background: var(--paper); color: var(--ink); }
.receipt::backdrop { background: rgba(10, 14, 24, 0.72); }
.receipt h2 { margin: 0 0 var(--u); font: 400 1.5rem/1.2 var(--fang); }
.receipt .paper svg { display: block; width: 100%; height: auto; max-height: 62vh; box-shadow: 0 2px 18px rgba(0, 0, 0, 0.18); }
.receipt-note { margin: calc(var(--u) * 1.5) 0; color: var(--lathe); font-size: 0.875rem; line-height: 1.6; }
.receipt-steps { margin: 0 0 calc(var(--u) * 1.5); padding: 10px 12px; border-left: 3px solid var(--scope); color: var(--ink); font-size: 0.875rem; line-height: 1.6; }
.receipt-steps[hidden] { display: none; }
.receipt .close { min-height: 44px; padding: 0 20px; border: 0; border-radius: 2px; background: var(--ink); color: var(--paper); font: 400 1rem/1 var(--fang); cursor: pointer; }
.receipt .close:focus-visible { outline: 2px solid var(--scope); outline-offset: 2px; }

@media (max-width: 880px) {
  .rec { position: sticky; bottom: var(--u); z-index: 2; box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25); }
}
@media (prefers-reduced-motion: reduce) {
  .rings .dot.is-new, .rec.is-rec i { animation: none; }
}

/* —— 史料（tier: archival）：和馆藏同一种行，只多一枚「史料」小标与左侧虚线；颜色不另起，沿用冻结五色 —— */
.tier { display: inline-block; margin-right: 6px; padding: 0 5px; border: 1px solid var(--lathe); border-radius: 2px; color: var(--lathe); font: 400 0.6875rem/1.5 var(--hei); letter-spacing: 0.04em; vertical-align: 1px; }
th .tier { margin: 0 0 0 6px; }
.past-wrap { margin: 0 0 calc(var(--u) * 2); }
.past-wrap .sub { margin-top: 0; }
.voice.past { border-left: 3px dashed var(--alu); }
.voice.past[aria-pressed="true"] { border-left-color: var(--lathe); }
.facts { margin: 0 0 var(--u); padding: 0 0 0 1.1em; color: var(--ink); font-size: 0.8125rem; line-height: 1.6; }
.facts li { overflow-wrap: anywhere; }
.facts a { margin-left: 6px; color: var(--lathe); }
.facts a:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

/* —— 第七轮：年份、新旧、人的柜子、展签、随手换一张 —— */
.cab-link {
  position: absolute;
  left: calc(var(--u) * 3);
  top: calc(var(--u) * 6);
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid rgba(211, 215, 218, 0.45);
  border-radius: 2px;
  background: rgba(21, 28, 44, 0.55);
  color: var(--paper);
  font: 400 0.9375rem/1 var(--fang);
  cursor: pointer;
}
.cab-link .n { margin-left: 0.5em; color: var(--scope); font: 400 0.8125rem/1 var(--hei); }
.cab-link:hover { border-color: var(--paper); }
.cab-link:focus-visible { outline: 2px solid var(--paper); outline-offset: 2px; }

.years { display: flex; flex-wrap: wrap; gap: 4px; margin: 0 0 6px; }
.years button {
  min-height: 32px;
  padding: 0 9px;
  border: 1px solid var(--alu);
  border-radius: 2px;
  background: transparent;
  color: var(--lathe);
  font: 400 0.8125rem/1 var(--hei);
  font-variant-numeric: tabular-nums;
  cursor: pointer;
}
.years button:hover { border-color: var(--lathe); color: var(--ink); }
.years button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.years button:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.anchors { margin: calc(var(--u) * 3) 0 0; padding-top: calc(var(--u) * 2); border-top: 1px solid var(--alu); }
.anchor-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--u); }
.anchor-card { min-width: 0; padding: 10px; border: 1px solid var(--alu); }
.anchor-card h4 { margin: 0; font: 400 1rem/1.3 var(--fang); }
.anchor-card > p { margin: 4px 0 8px; color: var(--lathe); font-size: 0.75rem; }
.anchor-card .voices { border-top: 0; }
.anchor-card .voice { padding: 8px 0; }
.anchor-empty { padding: 8px 0; color: var(--lathe); font-size: 0.8125rem; }
@media (max-width: 600px) { .anchor-grid { grid-template-columns: 1fr; } }
.ages { display: flex; align-items: center; gap: 4px; margin: 0 0 calc(var(--u) * 2); }
.ages .sw { display: inline-block; width: 10px; height: 10px; margin-left: 8px; border-radius: 50%; }
.ages .sw:first-child { margin-left: 0; }
.ages .sw.now { background: var(--ink); }
.ages .sw.old { background: linear-gradient(90deg, var(--ink), #A9B1BE); width: 22px; border-radius: 5px; }
.ages .sw.me { background: var(--scope); }

.kicker { margin: 0 0 4px; color: var(--lathe); font: 400 0.8125rem/1.2 var(--hei); letter-spacing: 0.08em; }
.sub .n { margin-left: 0.6em; color: var(--lathe); font: 400 0.8125rem/1 var(--hei); }

.people { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--alu); }
.people li { border-bottom: 1px solid var(--alu); }
.people button {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 10px;
  width: 100%;
  min-height: 48px;
  padding: 8px 2px;
  border: 0;
  background: none;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}
.people button > span:first-child { grid-row: span 2; align-self: center; font: 400 1.125rem/1.2 var(--fang); min-width: 3.5em; }
.people .n { color: var(--lathe); font: 400 0.8125rem/1.4 var(--hei); }
.people button:hover { background: linear-gradient(90deg, var(--alu), transparent 85%); }
.people button:focus-visible { outline: 2px solid var(--ink); outline-offset: -2px; }

.who-link {
  display: block;
  margin-top: var(--u);
  padding: 2px 0;
  border: 0;
  border-bottom: 1px solid var(--alu);
  background: none;
  color: var(--paper);
  font: 400 0.875rem/1.3 var(--hei);
  cursor: pointer;
}
.who-link:hover { border-bottom-color: var(--scope); }
.who-link:focus-visible { outline: 2px solid var(--scope); outline-offset: 3px; }

.tag.is-place i { display: block; max-width: 15em; margin-top: 2px; overflow: hidden; text-overflow: ellipsis; color: var(--lathe); font: 400 0.75rem/1.3 var(--fang); font-style: normal; }
.tag.is-place i:empty { display: none; }
.tag.is-who span { box-shadow: 0 0 0 2px var(--scope); }

@media (max-width: 880px) {
  .cab-link { left: calc(var(--u) * 2); top: calc(var(--u) * 5.5); }
  .tag.is-place i { max-width: 10em; }
}

/* —— 第八轮：加载画面、听一段示例、史料一栏、亮出来的针 —— */
/* 加载画面：纯 CSS，HTML 一到就有（模块和三维场景还在下载时，屏幕上已经是一张在转的盘） */
.boot {
  position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: calc(var(--u) * 2);
  color: var(--alu); font: 400 0.9375rem/1 var(--fang); letter-spacing: 0.12em; pointer-events: none;
  transition: opacity 0.6s ease;
}
.boot i {
  width: 132px; height: 132px; border-radius: 50%;
  background:
    radial-gradient(circle, var(--ink) 0 9%, var(--alu) 9.5% 11%, transparent 11.5%),
    repeating-radial-gradient(circle, rgba(36, 48, 74, 0.0) 0 3px, rgba(36, 48, 74, 0.55) 3px 4px),
    radial-gradient(circle, #C4C9CD 0 60%, var(--alu) 61% 100%);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
  animation: ks-spin 2s linear infinite;
  position: relative;
}
.boot i::after { content: ""; position: absolute; left: 50%; top: 6px; width: 2px; height: 22px; margin-left: -1px; background: var(--scope); }
.boot.is-done { opacity: 0; }
@keyframes ks-spin { to { transform: rotate(360deg); } }

.examples { margin: 0 0 calc(var(--u) * 3); padding: calc(var(--u) * 2) 0 0; border-top: 1px solid var(--ink); }
.examples .sub { margin-top: 0; }
.ex-list { list-style: none; margin: var(--u) 0 0; padding: 0; display: grid; gap: 4px; }
.ex-btn {
  display: grid; width: 100%; min-height: 48px; padding: 8px 10px; gap: 2px;
  border: 1px solid var(--alu); border-radius: 2px; background: none; color: var(--ink); text-align: left; cursor: pointer;
}
.ex-btn .t { font: 400 1.0625rem/1.3 var(--fang); }
.ex-btn .d { color: var(--lathe); font-size: 0.75rem; line-height: 1.5; }
.ex-btn:hover { border-color: var(--lathe); }
.ex-btn[aria-pressed="true"] { border-color: var(--ink); box-shadow: inset 3px 0 0 var(--scope); }
.ex-btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.ex-live { display: flex; gap: 12px; align-items: baseline; margin: calc(var(--u) * 1.5) 0 0; font: 400 1rem/1.5 var(--fang); }
.ex-clock { min-width: 4.2em; color: var(--ink); font: 400 1.375rem/1 var(--fang); font-variant-numeric: tabular-nums; }
.ex-result { margin: calc(var(--u) * 1.5) 0 var(--u); padding: 10px 12px; background: var(--ink); color: var(--paper); font: 400 1rem/1.6 var(--fang); border-radius: 2px; }
.ex-result.is-match { box-shadow: inset 4px 0 0 var(--scope); }
.ex-curve { margin: 0 0 var(--u); }
.ex-curve svg { display: block; width: 100%; height: auto; background: linear-gradient(var(--paper), #E9ECEC); border-bottom: 1px solid var(--alu); }
.ex-curve polyline { fill: none; stroke-width: 1.6; stroke-linejoin: round; }
.ex-curve .c0 { stroke: var(--ink); }
.ex-curve .c1 { stroke: var(--lathe); stroke-dasharray: 2 2; }
.ex-curve .th { stroke: var(--scope); stroke-width: 1.2; stroke-dasharray: 5 4; }
.ex-curve figcaption { margin-top: 4px; color: var(--lathe); font-size: 0.75rem; line-height: 1.6; }
.ex-ask { margin: var(--u) 0 0; font: 400 1rem/1.6 var(--fang); }
.examples .act { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.examples .act.ghost { background: transparent; color: var(--ink); }

.arc-wrap { margin: calc(var(--u) * 3) 0 0; }
.arc-group { border-top: 1px solid var(--alu); }
.arc-group summary { display: flex; min-height: 44px; align-items: center; padding: 0 2px; font: 400 1rem/1.3 var(--fang); cursor: pointer; }
.arc-group summary .n { margin-left: auto; color: var(--lathe); font: 400 0.8125rem/1 var(--hei); }
.arc-group summary:focus-visible { outline: 2px solid var(--ink); outline-offset: -2px; }
.arc-group .voices { border-top: 0; }

.tag.is-flash span { background: var(--scope); color: var(--ink); box-shadow: 0 0 0 2px var(--ink); }
@media (prefers-reduced-motion: reduce) {
  .boot i { animation: none; }
}

/* —— 第九轮：影棚。画布铺满整屏，馆藏卡是浮在影棚里的一张内页；镜头按卡片让出的宽度往左偏（plan3d.js resize）—— */
@media (min-width: 881px) {
  body { display: block; }
  .stage { position: fixed; inset: 0; background: #07080A; }
  .card {
    position: fixed; top: 16px; right: 16px; bottom: 16px; width: var(--card); z-index: 3;
    border-radius: 3px; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.04);
  }
  .hour, .legend { right: calc(var(--card) + 48px); }
}

/* 外圈学期标尺：细线引到那一带上，字是仿宋，张数小一号 */
.tag.is-band { padding-bottom: 34px; }
.tag.is-band span { background: rgba(8, 9, 12, 0.72); color: var(--paper); font: 400 0.9375rem/1.2 var(--fang); letter-spacing: 0.06em; padding: 4px 9px 5px; border: 1px solid rgba(211, 215, 218, 0.22); backdrop-filter: blur(6px); }
.tag.is-band span i { font-style: normal; margin-left: 0.6em; color: var(--alu); font: 400 0.75rem/1 var(--hei); }
.tag.is-band::after { height: 34px; background: linear-gradient(rgba(242, 244, 243, 0.8), rgba(242, 244, 243, 0)); }
.tag.band-act span { border-color: var(--scope); color: var(--scope); }
.tag.band-act::after { background: linear-gradient(var(--scope), rgba(230, 190, 58, 0)); }

/* 总览句里的数：大号、等宽数字 */
.lede .num { font: 400 1.75rem/1 var(--fang); font-variant-numeric: tabular-nums lining-nums; color: var(--ink); letter-spacing: -0.01em; margin: 0 0.08em; vertical-align: -0.12em; }

#side-switch { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
#side-switch[hidden], #side-note[hidden], #side-action[hidden] { display: none; }
#side-switch button { min-height: 36px; padding: 5px 10px; border: 1px solid rgba(36,48,74,.28); background: transparent; color: var(--ink); font: 400 .8rem/1.2 var(--fang); cursor: pointer; }
#side-switch button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.side-note { margin: 8px 0 0; color: var(--lathe); font-size: .78rem; }
.side-action { margin-top: 14px; padding-top: 12px; border-top: 1px solid rgba(81,92,106,.25); }
.side-action .fine { margin: 8px 0 0; }

@media (min-width: 881px) {
  #card-body { padding: calc(var(--u) * 5) calc(var(--u) * 4) calc(var(--u) * 2); }
  .card h1 { font-size: 2.75rem; letter-spacing: 0.04em; }
  .card h1::before { content: "刻声 · 十秒声片柜"; display: block; margin-bottom: 10px; color: var(--lathe); font: 400 0.75rem/1 var(--hei); letter-spacing: 0.24em; }
  .card .lede { font-size: 0.9375rem; line-height: 1.9; }
  .player { border-radius: 0 0 3px 3px; }
}

/* 快刻钮横跨画布底部，但只占一条操作带；柜子/地点浏览时不移位，刻纹第一时间留在主舞台。 */
.quick {
  --p: 0;
  position: absolute; left: 50%; bottom: calc(var(--u) * 2.5); z-index: 4; transform: translateX(-50%);
  display: flex; align-items: center; gap: 12px; min-height: 60px; padding: 0 26px 0 14px;
  border: 0; border-radius: 30px; cursor: pointer; touch-action: none; user-select: none; -webkit-user-select: none;
  background: rgba(242, 244, 243, 0.94); color: var(--ink); font: 400 1.25rem/1 var(--fang); letter-spacing: 0.08em;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.45), inset 0 -2px 0 rgba(0, 0, 0, 0.08);
  transition: background 0.2s, transform 0.15s;
}
.quick i {
  width: 36px; height: 36px; border-radius: 50%; position: relative;
  background: conic-gradient(var(--scope) calc(var(--p) * 360deg), rgba(36, 48, 74, 0.16) 0);
}
.quick i::after { content: ""; position: absolute; inset: 9px; border-radius: 50%; background: #C0392B; transition: inset 0.15s, border-radius 0.15s; }
.quick:hover { background: var(--paper); }
.quick:active { transform: translateX(-50%) scale(0.98); }
.quick.is-rec { background: var(--scope); }
.quick.is-rec i { background: conic-gradient(var(--ink) calc(var(--p) * 360deg), rgba(36, 48, 74, 0.22) 0); }
.quick.is-rec i::after { inset: 11px; border-radius: 3px; background: var(--ink); }
.quick:focus-visible { outline: 2px solid var(--scope); outline-offset: 4px; }
.quick[disabled] { opacity: 0.6; cursor: progress; }
.quick-note { position: absolute; left: 50%; bottom: calc(var(--u) * 7); transform: translateX(-50%); margin: 0; color: var(--alu); font-size: 0.75rem; opacity: 0.7; white-space: nowrap; pointer-events: none; }
.cut-live { position: absolute; left: 50%; bottom: calc(var(--u) * 11); transform: translateX(-50%); display: flex; align-items: center; gap: 10px; margin: 0; color: var(--paper); pointer-events: none; text-shadow: 0 2px 14px rgba(0, 0, 0, 0.7); }
.cut-live[hidden] { display: none; }
.cut-spiral { width: 42px; height: 42px; overflow: visible; }
.cut-spiral .track { fill: none; stroke: rgba(211, 215, 218, 0.25); stroke-width: 3; }
.cut-spiral .groove { fill: none; stroke: var(--scope); stroke-width: 3; stroke-linecap: round; }
.cut-live-copy { display: grid; gap: 3px; }
.cut-live-copy b { color: var(--scope); font: 400 1.25rem/1 var(--fang); letter-spacing: 0.08em; }
.cut-live-copy i { color: var(--alu); font: 400 1rem/1 var(--hei); font-style: normal; font-variant-numeric: tabular-nums; }
.cut-live.is-sealed { animation: cut-sealed 1.1s ease both; }
.cut-live.is-sealed .cut-live-copy b { color: var(--paper); }
.cut-live.is-sealed .cut-spiral .groove { stroke: var(--paper); }
@keyframes cut-sealed { 0% { opacity: 1; transform: translateX(-50%) scale(1); } 55% { opacity: 1; transform: translateX(-50%) scale(1.08); } 100% { opacity: 0; transform: translateX(-50%) scale(0.94); } }
@media (min-width: 881px) {
  .quick, .quick-note, .cut-live { left: calc((100vw - var(--card) - 32px) / 2); }
}
@media (max-width: 880px) {
  .quick { bottom: calc(var(--u) * 2); min-height: 56px; font-size: 1.0625rem; }
  .quick-note { bottom: calc(var(--u) * 0.5); }
  .cut-live { bottom: calc(var(--u) * 9); }
  .slots { bottom: calc(var(--u) * 16); }
  .groove-caption { left: 16px; right: 16px; top: 16%; width: auto; transform: none; }
  .groove-caption b { font-size: 1.15rem; }
}
.landed.is-unplaced { border-left: 3px solid var(--scope); }

@media (min-width: 881px) {
  .slots { left: calc(var(--u) * 3); bottom: calc(var(--u) * 11); flex-wrap: wrap; max-width: calc(100% - var(--u) * 6); }
  .slots legend { width: 100%; margin: 0 0 4px; }
  .quick { bottom: calc(var(--u) * 3); }
  .quick-note { bottom: calc(var(--u) * 8); white-space: normal; width: min(240px, 30vw); text-align: center; }
  .cut-live { bottom: calc(var(--u) * 12.5); }
}

.groove-caption { position: absolute; left: 50%; top: 14%; z-index: 4; display: grid; gap: 6px; width: min(420px, 42vw); margin: 0; padding: 12px 16px; transform: translateX(-50%); border-left: 3px solid var(--scope); background: rgba(8, 10, 16, 0.78); color: var(--paper); text-shadow: 0 2px 12px rgba(0,0,0,.7); }
.groove-caption[hidden] { display: none; }
.groove-caption b { color: var(--scope); font: 400 1.35rem/1.2 var(--fang); }
.groove-caption span { color: var(--paper); font-size: .82rem; line-height: 1.5; }

.first { position: absolute; left: 0; right: 0; top: 38%; z-index: 5; display: grid; justify-items: center; gap: 10px; margin: 0; pointer-events: none;
  color: var(--paper); opacity: 0; transform: translateY(8px); transition: opacity 0.8s ease, transform 0.8s ease; }
.first b { font: 400 6rem/1 var(--fang); color: var(--scope); text-shadow: 0 6px 30px rgba(0, 0, 0, 0.6); }
.first span { font: 400 1.25rem/1.4 var(--fang); letter-spacing: 0.12em; text-shadow: 0 2px 14px rgba(0, 0, 0, 0.7); }
.first.is-on { opacity: 1; transform: none; }
@media (min-width: 881px) { .first { right: calc(var(--card) + 32px); } }

/* 凑近时的时间标尺：画面左上，一行仿宋 */
.scale { position: absolute; left: 50%; transform: translateX(-50%); top: calc(var(--u) * 2.5); margin: 0; color: var(--scope); font: 400 1rem/1 var(--fang); letter-spacing: 0.08em; pointer-events: none; }
@media (min-width: 881px) { .scale { left: calc((100vw - var(--card) - 32px) / 2); } }

/* —— 柜子：背后的盘虚下去、往左让；柜子从右边推进来。木搁板、立着的套封，下面一张小卡写真的事 —— */
.stage #gl, .stage .labels { transition: filter 0.6s ease, transform 0.6s cubic-bezier(.2,.7,.2,1); }
body.is-shelf .stage #gl, body.is-shelf .stage .labels { filter: blur(7px) brightness(0.55); transform: translateX(-9%) scale(0.96); }
body.is-shelf .quick, body.is-shelf .quick-note { opacity: 0; pointer-events: none; }
.shelf {
  position: fixed; z-index: 6; top: 7vh; max-height: 86vh; left: 5vw; right: calc(var(--card) + 40px);
  display: flex; flex-direction: column; padding: 28px 30px 22px;
  background: repeating-linear-gradient(92deg, rgba(255, 255, 255, 0.018) 0 2px, transparent 2px 9px), linear-gradient(180deg, #4A3A2C, #3B2E24 60%, #33281F);
  border-radius: 4px; box-shadow: 0 40px 90px rgba(0, 0, 0, 0.6), inset 0 0 0 10px #2A2018, inset 0 0 0 11px rgba(255, 255, 255, 0.05);
  color: #F3EBDD; transform: translateX(110%); opacity: 0.4; transition: transform 0.65s cubic-bezier(.2,.75,.2,1), opacity 0.4s ease; overflow: auto;
}
.shelf.is-in { transform: none; opacity: 1; }
.shelf header { display: flex; align-items: baseline; gap: 18px; margin: 0 6px 18px; }
.shelf h2 { margin: 0; font: 400 1.75rem/1 var(--fang); letter-spacing: 0.08em; }
.shelf .count { margin: 0; color: #CDBFA8; font: 400 0.9375rem/1 var(--fang); }
.shelf .close { margin-left: auto; min-height: 40px; padding: 0 16px; border: 1px solid rgba(243, 235, 221, 0.35); border-radius: 2px; background: none; color: inherit; font: 400 0.9375rem/1 var(--fang); cursor: pointer; }
.shelf .close:focus-visible, .sleeve:focus-visible { outline: 2px solid var(--scope); outline-offset: 3px; }
.board { list-style: none; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 26px; margin: 0 0 30px; padding: 0 10px 14px; min-height: 200px; align-items: end;
  border-bottom: 14px solid #6B533D; box-shadow: 0 16px 0 -2px rgba(0, 0, 0, 0.35);
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.28), transparent 30%); }
.board li { display: flex; flex-direction: column; align-items: stretch; min-width: 0; }
.sleeve { position: relative; display: block; width: 100%; aspect-ratio: 1; padding: 0; border: 0; background: none; cursor: pointer; transition: transform 0.4s cubic-bezier(.2,.7,.2,1); }
.sleeve .disc { position: absolute; inset: 4% 4% 4% 22%; border-radius: 50%; background: #0C0D10; transition: transform 0.4s cubic-bezier(.2,.7,.2,1); }
.sleeve .disc svg { width: 100%; height: 100%; display: block; }
.sleeve .jacket { position: absolute; inset: 0 22% 0 0; display: flex; flex-direction: column; justify-content: flex-end; padding: 10px; gap: 4px;
  background: #EFE8DA; color: #2B2620; box-shadow: 2px 0 6px rgba(0, 0, 0, 0.35), inset 0 0 0 1px rgba(0, 0, 0, 0.06); text-align: left;
  background-image: radial-gradient(circle at 70% 36%, transparent 0 18%, rgba(43, 38, 32, 0.08) 18.5% 19%, transparent 19.5%); }
.sleeve .jacket b { font: 400 1rem/1.2 var(--fang); overflow-wrap: anywhere; }
.sleeve .jacket i { font: 400 0.75rem/1 var(--hei); font-style: normal; color: #7A6E5E; }
.sleeve:hover .disc { transform: translateX(10%); }
.sleeve:hover { transform: translateY(-4px); }
.sleeve.is-out { transform: translateY(-140%); }
.board .tag-line { margin: 10px 2px 0; font: 400 0.8125rem/1.35 var(--fang); color: #F3EBDD; }
.board .tag-line.dim { margin-top: 2px; color: #BBAE98; font-size: 0.75rem; }
.board .empty .slot-hole { display: block; aspect-ratio: 1; border: 1px dashed rgba(243, 235, 221, 0.3); border-radius: 2px; }
@media (max-width: 880px) {
  .shelf { left: 2vw; right: 2vw; top: 4vh; bottom: 4vh; padding: 18px 14px; }
  .board { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  .shelf, .sleeve, .sleeve .disc, .stage #gl, .stage .labels { transition: none; }
}

/* 海图的位置记号（Bowditch《美国实用航海学》的标绘惯例）：不写百分比，用记号说「有多确定」。
   定位圈 ⊙ = 回放层对上了原盘；方框 ⊡ = 两张都像、分不开；半圆 ◠ = 只按声音的样子猜；实心点 = 你自己指的 */
.tag .mk { display: none; }
.tag.mk-fix .mk, .tag.mk-ep .mk, .tag.mk-dr .mk, .tag.mk-user .mk { display: inline-block; position: relative; width: 14px; height: 14px; margin-right: 6px; vertical-align: -2px; text-decoration: none; }
.tag.mk-fix .mk { border: 1.6px solid var(--ink); border-radius: 50%; }
.tag.mk-fix .mk::after, .tag.mk-ep .mk::after { content: ""; position: absolute; left: 50%; top: 50%; width: 3px; height: 3px; margin: -1.5px 0 0 -1.5px; border-radius: 50%; background: var(--ink); }
.tag.mk-ep .mk { border: 1.6px solid var(--ink); }
.tag.mk-dr .mk { height: 8px; margin-top: 4px; border: 1.6px solid var(--ink); border-bottom: 0; border-radius: 8px 8px 0 0; }
.tag.mk-dr .mk::after { content: ""; position: absolute; left: -2px; right: -2px; bottom: -1px; height: 1.6px; background: var(--ink); }
.tag.mk-user .mk { width: 9px; height: 9px; border-radius: 50%; background: var(--ink); vertical-align: 0; }
/* hidden 要赢过上面的 display:flex / grid（柜子、盖章、标尺） */
.shelf[hidden], .first[hidden], .scale[hidden] { display: none; }

/* ======================================================================================
   A 轨 · 深色高级感：内页是躺在这张桌面上的一张纸——它把影子投向舞台，而不是浮在舞台上
   ====================================================================================== */
@media (min-width: 881px) {
  .card {
    box-shadow:
      inset 1px 0 0 rgba(255, 255, 255, 0.55),
      -28px 0 60px -8px rgba(0, 0, 0, 0.55),
      -2px 0 6px rgba(0, 0, 0, 0.4);
  }
}

/* 内页深色版（?card=dark）：同一张卡，换成黑卡纸 + 暖白字；播放块仍是最深的一块 */
@media (min-width: 881px) {
  html.card-dark .card {
    --paper: #151A24; --ink: #ECE6D6; --lathe: #A9AFB9; --alu: #3A4352;
    background: #151A24; color: #ECE6D6;
    box-shadow: inset 1px 0 0 rgba(255, 255, 255, 0.10), -28px 0 60px -8px rgba(0, 0, 0, 0.7), -2px 0 6px rgba(0, 0, 0, 0.5);
  }
  html.card-dark .card h1, html.card-dark .card h2 { color: #F3EDDD; }
  html.card-dark .card .player, html.card-dark .card .player + .status { background: #0B0F16; color: #D9DCE2; }
  html.card-dark .card .player * { color: inherit; }
  html.card-dark .card button { border-color: rgba(236, 230, 214, 0.45); color: #ECE6D6; }
  html.card-dark .card a { color: #ECE6D6; }
}

/* 校庆（A 轨）：红只落在标题条和内页右缘的脊上；其余颜色不动 */
:root[data-theme-event="anniversary-74"] .theme-mark { border-left: 3px solid #E0301F; background: rgba(60, 8, 4, 0.82); }
@media (min-width: 881px) {
  :root[data-theme-event="anniversary-74"] .card {
    box-shadow: inset -9px 0 0 #C8261A, inset -10px 0 0 rgba(255, 255, 255, 0.25), inset 1px 0 0 rgba(255, 255, 255, 0.55), -28px 0 60px -8px rgba(0, 0, 0, 0.55), -2px 0 6px rgba(0, 0, 0, 0.4);
  }
}


/* ======================================================================================
   A 轨 · 季节条（和时段条同一种样式，叠在它上面）+ 控制面板（默认收起，悬停才露出把手）
   ====================================================================================== */
@media (min-width: 881px) {
  .slots.seasons { bottom: calc(var(--u) * 11 + 62px); }
}
@media (max-width: 880px) {
  .slots.seasons { bottom: calc(var(--u) * 5.5 + 44px); }
}
.cp-handle {
  position: absolute; left: 0; top: 50%; z-index: 6; width: 20px; height: 72px; margin-top: -36px; padding: 0;
  border: 1px solid rgba(236, 230, 214, 0.35); border-left: 0; border-radius: 0 3px 3px 0;
  background: rgba(10, 12, 16, 0.55); color: #ECE6D6; font: 400 0.8125rem/1 var(--fang); writing-mode: vertical-rl; letter-spacing: 0.2em;
  opacity: 0; transition: opacity 160ms ease; cursor: pointer;
}
.cp-handle:hover, .cp-handle:focus-visible, .cp-handle.is-open { opacity: 1; }
.cp {
  position: absolute; left: calc(var(--u) * 3); top: calc(var(--u) * 10); z-index: 6; width: 300px; max-height: calc(100% - var(--u) * 20); overflow: auto;
  padding: 14px 14px 12px; background: rgba(12, 14, 20, 0.88); color: #ECE6D6; border: 1px solid rgba(236, 230, 214, 0.22); border-radius: 3px;
  box-shadow: 0 24px 50px -10px rgba(0, 0, 0, 0.7); font: 400 0.8125rem/1.4 var(--hei);
}
.cp[hidden] { display: none; }
.cp header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; padding-bottom: 8px; border-bottom: 1px solid rgba(236, 230, 214, 0.3); }
.cp header b { font: 400 1rem/1 var(--fang); letter-spacing: 0.12em; }
.cp-x { border: 0; background: none; color: inherit; font-size: 1.25rem; line-height: 1; cursor: pointer; }
.cp-row { display: flex; align-items: center; gap: 8px; margin: 0 0 8px; }
.cp-row > span:first-child { flex: 0 0 56px; color: #A9AFB9; }
.cp-btns { display: flex; flex-wrap: wrap; gap: 3px; }
.cp button:not(.cp-x) { min-height: 26px; padding: 0 8px; border: 1px solid rgba(236, 230, 214, 0.35); border-radius: 2px; background: transparent; color: #ECE6D6; font: inherit; cursor: pointer; }
.cp button[aria-pressed="true"] { background: #ECE6D6; color: #12161D; border-color: #ECE6D6; }
.cp-sl { flex-wrap: wrap; }
.cp-sl > span:first-child { flex: 0 0 100%; }
.cp-sl input[type=range] { flex: 1; accent-color: #E6BE3A; }
.cp output { margin-left: 6px; color: #E6BE3A; font-variant-numeric: tabular-nums; }
.cp-eff { margin: 4px 0 10px; color: #A9AFB9; font-size: 0.6875rem; word-break: break-all; }
.cp-reset { margin-right: auto; }
.cp-fps { color: #A9AFB9; font-variant-numeric: tabular-nums; }
.cp :focus-visible, .cp-handle:focus-visible { outline: 2px solid #E6BE3A; outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { .cp-handle { transition: none; } }

.cp-handle.is-hint { opacity: 0.9; animation: cp-nudge 2.6s ease-in-out both; }
@keyframes cp-nudge { 0% { transform: translateX(-12px); opacity: 0; } 18% { transform: none; opacity: 0.9; } 82% { transform: none; opacity: 0.9; } 100% { transform: translateX(-12px); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .cp-handle.is-hint { animation: none; opacity: 0.9; } }

/* ===== 第 9 轮 · 录制交互 ===== */
/* c · 下一步：接在「正在刻」原来的位置（手刚离开的地方），晚 0.9 秒、从下面升上来 8px；不放大、不加亮，地点一落就收 */
.next-step { position: absolute; left: 50%; bottom: calc(var(--u) * 13.5); z-index: 3; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 4px; margin: 0; width: 280px; text-align: center; color: var(--paper); pointer-events: none; text-shadow: 0 2px 14px rgba(0, 0, 0, 0.75); opacity: 0; }
.next-step[hidden] { display: none; }
.next-step.is-on { animation: ns-in 0.7s cubic-bezier(.2, .7, .2, 1) 0.9s both; }
.ns-arrow { color: var(--scope); font: 400 1.125rem/1 var(--hei); animation: ns-nod 2.6s ease-in-out 1.6s infinite; }
.ns-copy { display: grid; gap: 3px; }
.ns-copy b { font: 400 1rem/1.2 var(--fang); letter-spacing: 0.08em; }
.ns-copy i { font: 400 0.8125rem/1.4 var(--fang); font-style: normal; color: var(--alu); }
@media (min-width: 881px) { .next-step { left: calc((100vw - var(--card) - 32px) / 2); } }
@keyframes ns-in { from { opacity: 0; transform: translate(-50%, 8px); } to { opacity: 1; transform: translate(-50%, 0); } }
@keyframes ns-nod { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-4px); } }
body.is-next .quick-note { opacity: 0; }
body.is-shelf .next-step { opacity: 0 !important; animation: none; }
/* 补地点时，每根针的名牌轮流呼一口气（外沿一圈淡黄光环，不改名牌大小和底色）：一圈 3.2 秒，依次错开 */
.labels .tag.is-place.is-pick { display: block; }
.tag.is-place.is-pick i, .tag.is-place.is-pick b { display: none; }   /* 补地点时只要名字：十六张名牌同时亮，不再叠上「最新一张是谁」和张数 */
.tag.is-place.is-pick span { animation: pick-breath 3.2s ease-out infinite; animation-delay: calc(var(--k, 0) * 0.2s + 1.6s); }
@keyframes pick-breath { 0% { box-shadow: 0 0 0 0 rgba(230, 190, 58, 0.75); } 45%, 100% { box-shadow: 0 0 0 9px rgba(230, 190, 58, 0); } }

/* b · 删除 / 舍弃：平时是一行小字，点一下才展开成「确认 / 留着」，不弹窗 */
.del { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; margin-left: 10px; }
.del button { min-height: 28px; padding: 0 2px; border: 0; border-bottom: 1px solid currentColor; background: none; color: inherit; font: 400 0.8125rem/1.2 var(--fang); cursor: pointer; opacity: 0.75; }
.del button:hover, .del button:focus-visible { opacity: 1; }
.del button:focus-visible { outline: 2px solid var(--scope); outline-offset: 2px; }
.del .del-yes { color: #C0392B; opacity: 1; }
.landed .del .del-yes { color: #F0A090; }
.del-q { font: 400 0.8125rem/1.3 var(--fang); }
.board .tag-line.dim .del { margin-left: 8px; }
.clip-del { margin-top: var(--u); }
.clip-del:empty { display: none; }
.clip-del .del { margin-left: 0; color: var(--alu); }

/* d · 落款栏：两步里的第 2 步，位置固定在「地点」下面；输入框是画在纸上的空格（虚线底），写着「可以空着」 */
.steps { list-style: none; margin: 0 0 calc(var(--u) * 1.5); padding: 0; display: grid; gap: 14px; }
.step { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 10px; align-items: start; }
.step > b { display: grid; place-items: center; width: 22px; height: 22px; border: 1px solid var(--alu); border-radius: 50%; color: var(--alu); font: 400 0.75rem/1 var(--hei); }
.step.is-now > b { border-color: var(--scope); color: var(--scope); }
.step p { margin: 0; }
.step .step-h { font: 400 1rem/1.3 var(--fang); letter-spacing: 0.08em; }
.step .step-t { margin-top: 2px; font: 400 0.9375rem/1.55 var(--fang); color: var(--alu); }
.sig-form.is-slot { margin-top: 4px; }
.sig-form.is-slot .sig-title { margin: 0 0 6px; color: var(--alu); font: 400 0.875rem/1.4 var(--fang); }
.landed .sig-form.is-slot input { border: 0; border-bottom: 1px dashed var(--alu); border-radius: 0; background: transparent; color: var(--paper); }
.landed .sig-form.is-slot input::placeholder { color: rgba(211, 215, 218, 0.55); }
.landed .sig-form.is-slot input:focus-visible { border-bottom-style: solid; border-bottom-color: var(--scope); outline: none; }
.landed .sig-form.is-slot .act { margin-top: 6px; }
.landed .sig-form.is-slot label { color: var(--alu); }
@media (prefers-reduced-motion: reduce) {
  .next-step.is-on { animation: none; opacity: 1; }
  .ns-arrow, .tag.is-place.is-pick span { animation: none; }
}
.shelf .del .del-yes { color: #F0A090; }