/* ============================================================
   弦续千年 · 中州筝派数字文脉可视化  v0.4-fixed
   视觉：深墨底色 + 米白文字层 + 朱红强调 + 金铜点缀；"弦"为母题
   ============================================================ */

:root {
  --bg: #131009;
  --bg-2: #1c1711;
  --bg-3: #241d14;
  --ink: #ece2cf;       /* 米白文字 */
  --ink-dim: #a99b84;
  --ink-faint: #90816c;
  --line: #3a3126;
  --accent: #b3422f;    /* 朱红 */
  --accent-soft: #c96a52;
  --gold: #b08d57;
  --panel: #191410;
  --green: #3f9b6d;
  --blue: #5470c6;
  --gold2: #c9a05a;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
}

h1, h2, h3 { font-family: "STSong", "SimSun", "Songti SC", serif; font-weight: 500; }

/* ---------- 固定导航 ---------- */
#topnav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; gap: 24px;
  padding: 12px 40px;
  background: rgba(19, 16, 9, 0.86);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.nav-brand { font-family: "STSong", serif; font-size: 18px; letter-spacing: 6px; color: var(--gold); }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-link {
  color: var(--ink-dim); text-decoration: none; font-size: 15px;
  letter-spacing: 4px; padding: 2px 6px; position: relative;
  transition: color .25s;
}
.nav-link:hover { color: var(--ink); }
.nav-link.active { color: var(--accent-soft); }
.nav-link.active::after {
  content: ""; position: absolute; left: 6px; right: 6px; bottom: -3px;
  height: 2px; background: var(--accent); border-radius: 2px;
}
.nav-progress {
  position: absolute; left: 0; bottom: -1px; height: 2px; width: 100%;
  background: transparent;
}
.nav-progress-bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--gold)); }

/* ---------- 序章 ---------- */
#hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  text-align: center; position: relative;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(176,141,87,0.10), transparent 60%),
    var(--bg);
}
.hero-inner { position: relative; padding: 40px; max-width: 860px; }
.hero-string {
  position: absolute; left: 50%; top: 4%; bottom: 8%; width: 1px;
  background: linear-gradient(180deg, transparent, var(--accent), var(--gold), transparent);
  transform: translateX(-50%);
  opacity: .7;
}
.hero-eyebrow { letter-spacing: 10px; color: var(--ink-faint); font-size: 13px; margin-bottom: 26px; }
.hero-title { font-size: clamp(44px, 7vw, 76px); letter-spacing: 22px; color: var(--ink); text-shadow: 0 0 40px rgba(179,66,47,.25); }
.hero-sub { margin-top: 14px; color: var(--gold); letter-spacing: 5px; font-size: 17px; }
.hero-question { margin: 34px auto 0; color: var(--ink-dim); font-size: 15px; max-width: 620px; }
.hero-cta {
  display: inline-block; margin-top: 44px; padding: 12px 34px;
  color: var(--ink); border: 1px solid var(--accent); border-radius: 2px;
  text-decoration: none; letter-spacing: 4px; font-size: 15px;
  transition: all .3s;
}
.hero-cta:hover { background: var(--accent); color: #fff; }
.hero-scroll-hint { margin-top: 40px; color: var(--ink-faint); font-size: 12px; letter-spacing: 3px; }

/* 源章节展开按钮（避免浏览器默认 button 样式） */
.src-toggle {
  display: inline-block; margin-top: 14px; padding: 8px 22px;
  background: transparent; border: 1px solid var(--accent); border-radius: 2px;
  color: var(--ink); font-family: inherit; font-size: 13.5px; letter-spacing: 3px;
  cursor: pointer; transition: all .25s;
}
.src-toggle:hover { background: var(--accent); color: #fff; }
.src-toggle:focus { outline: none; }

/* ---------- 章节通用 ---------- */
.chapter { padding: 110px 8vw 90px; position: relative; border-top: 1px solid var(--line); }
.chapter:nth-child(odd) { background: linear-gradient(180deg, var(--bg), var(--bg-2)); }
.chapter-head { max-width: 860px; margin-bottom: 40px; }
.chapter-no { color: var(--accent-soft); letter-spacing: 6px; font-size: 17px; margin-bottom: 12px; }
.chapter h2 { font-size: clamp(32px, 4.2vw, 50px); letter-spacing: 4px; }
.chapter-lead { margin-top: 14px; color: var(--ink-dim); font-size: 17px; max-width: 860px; }
.chapter-body { max-width: 1200px; margin: 0 auto; }
.chart-note { color: #b6a98e; font-size: 14.5px; margin-top: 10px; }
.chart-note.warn { color: var(--accent-soft); }

.chart-box { width: 100%; background: var(--panel); border: 1px solid var(--line); border-radius: 4px; }
.chart-box.tall { height: 66vh; min-height: 420px; }
.chart-box.short { height: 320px; }
.chart-box.medium { height: 300px; }
.chart-box.rms { height: 330px; }
.chart-box.slide { height: 400px; }
.chart-box.radar { height: 440px; }
.chart-title { color: var(--gold); letter-spacing: 3px; font-size: 19px; margin: 26px 0 10px; }

/* ---------- 源章节 ---------- */
.chapter-source { padding-top: 110px; background: radial-gradient(ellipse at 50% 0%, rgba(176,141,87,0.07), transparent 55%), var(--bg); }
.source-head { max-width: 1300px; margin: 0 auto; padding-bottom: 30px; }
.source-head h2 { font-size: clamp(34px, 4vw, 46px); letter-spacing: 5px; }
.source-head .chapter-lead { max-width: 860px; }
.source-stage-wrap { max-width: 1500px; margin: 0 auto; position: relative; }
/* 呼应首页弦线：源流主干线 */
.source-stage-wrap::before {
  content: ""; position: absolute; left: 50%; top: 26px; bottom: 26px; width: 1px;
  background: linear-gradient(180deg, rgba(176,141,87,0.05), rgba(176,141,87,0.28), rgba(179,66,47,0.35));
  pointer-events: none; transform: translateX(-50%);
}
.source-stage { width: 100%; height: 700px; }
.source-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  max-width: 1500px; margin: 6px auto 0; flex-wrap: wrap;
}
.src-toggle {
  display: inline-block; padding: 9px 26px;
  background: transparent; border: 1px solid var(--accent); border-radius: 2px;
  color: var(--ink); font-family: inherit; font-size: 14px; letter-spacing: 3px;
  cursor: pointer; transition: all .25s;
}
.src-toggle:hover { background: var(--accent); color: #fff; }
.src-toggle:focus { outline: none; }
@media (max-height: 800px) { .source-stage { height: 540px; } }

/* ---------- 人物详情面板 ---------- */
.person-panel {
  position: fixed; right: 30px; top: 90px; width: 340px; z-index: 90;
  background: var(--bg-3); border: 1px solid var(--line); border-radius: 6px;
  padding: 20px 22px; box-shadow: 0 12px 40px rgba(0,0,0,.5);
}
.person-panel.hidden { display: none; }
.person-panel-close { position: absolute; right: 12px; top: 8px; cursor: pointer; color: var(--ink-faint); font-size: 20px; }
.person-panel-close:hover { color: var(--accent); }
.person-panel h4 { font-size: 20px; letter-spacing: 3px; color: var(--ink); }
.person-panel .pp-meta { color: var(--ink-faint); font-size: 13px; margin: 6px 0 12px; }
.person-panel .pp-block { margin: 10px 0; }
.person-panel .pp-block b { color: var(--gold); font-weight: 500; font-size: 13px; display: block; margin-bottom: 4px; }
.person-panel .pp-block ul { list-style: none; padding-left: 0; }
.person-panel .pp-block li { color: var(--ink-dim); font-size: 13.5px; padding: 2px 0; border-bottom: 1px dashed var(--line); }

/* ---------- 流工具栏 ---------- */
.spread-toolbar { display: flex; align-items: center; gap: 10px; margin: 14px 0; flex-wrap: wrap; }
.toolbar-label { color: var(--ink-faint); font-size: 13px; }
.decade-buttons { display: flex; gap: 8px; flex-wrap: wrap; }
.decade-btn {
  padding: 4px 14px; background: var(--bg-3); color: var(--ink-dim);
  border: 1px solid var(--line); border-radius: 20px; cursor: pointer; font-size: 13px;
  transition: all .2s;
}
.decade-btn:hover { color: var(--ink); border-color: var(--gold); }
.decade-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ---------- 变 ---------- */
.change-grid-main { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.change-grid-main > div { min-width: 0; }
.change-grid-sub { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-top: 26px; }
.change-grid-sub .dim { opacity: .8; }
@media (max-width: 1000px) { .change-grid-main, .change-grid-sub { grid-template-columns: 1fr; } }
.change-grid-main .chart-box { height: 400px; }
.change-grid-sub .chart-box { height: 300px; }
.chain-box {
  margin-top: 26px; padding: 18px 22px; background: var(--bg-3);
  border: 1px solid var(--line); border-radius: 4px;
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
}
.chain-label { color: var(--gold); letter-spacing: 3px; font-size: 14px; }
.chain-path { color: var(--ink); font-size: 15px; letter-spacing: 1px; }
.chain-path i { color: var(--accent); font-style: normal; margin: 0 8px; }

/* ---------- 声 ---------- */
.player-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; }
@media (max-width: 900px) { .player-list { grid-template-columns: 1fr; } }
.player-card {
  background: var(--bg-3); border: 1px solid var(--line); border-radius: 6px;
  padding: 14px 16px; display: flex; align-items: center; gap: 14px;
}
.player-card .pc-info { flex: 1; min-width: 0; }
.player-card .pc-title { font-size: 15px; color: var(--ink); letter-spacing: 1px; }
.player-card .pc-performer { font-size: 12.5px; color: var(--ink-faint); margin-top: 2px; }
.player-card .pc-progress { height: 4px; background: var(--line); border-radius: 2px; margin-top: 8px; position: relative; }
.player-card .pc-progress .pc-fill { height: 100%; width: 0; background: var(--accent); border-radius: 2px; }
.player-card .pc-time { font-size: 11.5px; color: var(--ink-faint); margin-top: 4px; }
.pc-btn {
  width: 46px; height: 46px; border-radius: 50%; flex: none;
  background: transparent; border: 1px solid var(--gold); color: var(--gold);
  font-size: 16px; cursor: pointer; transition: all .2s;
}
.pc-btn:hover { background: var(--gold); color: var(--bg); }
.pc-btn.playing { background: var(--accent); border-color: var(--accent); color: #fff; }

.slide-control { display: flex; align-items: center; gap: 14px; margin: 14px 0; flex-wrap: wrap; }
.sel { background: var(--bg-3); color: var(--ink); border: 1px solid var(--line); padding: 6px 12px; border-radius: 4px; font-size: 14px; }
.sel-note { color: var(--ink-faint); font-size: 12.5px; }
.candidate-list { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0; }
.candidate-chip {
  padding: 6px 14px; border-radius: 20px; cursor: pointer; font-size: 13px;
  border: 1px solid var(--line); background: var(--bg-3); color: var(--ink-dim);
  transition: all .2s;
}
.candidate-chip.slide { border-color: rgba(179,66,47,.7); }
.candidate-chip.vibrato { border-color: rgba(84,112,198,.7); }
.candidate-chip:hover, .candidate-chip.active { color: #fff; }
.candidate-chip.slide:hover, .candidate-chip.slide.active { background: var(--accent); }
.candidate-chip.vibrato:hover, .candidate-chip.vibrato.active { background: #5470c6; }

/* ---------- 尾声 ---------- */
#epilogue { min-height: 70vh; display: flex; align-items: center; justify-content: center; text-align: center; }
.epilogue-inner { max-width: 720px; padding: 60px 30px; }
.epilogue-line { font-size: clamp(17px, 2.2vw, 23px); letter-spacing: 3px; margin: 18px 0; color: var(--ink); }
.epilogue-line:nth-child(3) { color: var(--gold); }
.epilogue-loop { margin-top: 46px; display: flex; align-items: center; justify-content: center; gap: 14px; color: var(--ink-dim); }
.epilogue-loop span { color: var(--accent-soft); letter-spacing: 4px; }
.epilogue-loop i { color: var(--ink-faint); font-style: normal; }

/* ---------- 关于数据 ---------- */
#about-data { padding: 70px 8vw; border-top: 1px solid var(--line); background: var(--bg-2); }
#about-data h2 { color: var(--gold); letter-spacing: 4px; margin-bottom: 18px; font-size: 22px; }
#about-data p { color: var(--ink-dim); font-size: 13.5px; max-width: 860px; margin: 8px 0; }
#about-data .about-note { color: var(--ink-faint); font-size: 12.5px; }
#about-data .copyright { margin-top: 30px; color: var(--ink-faint); letter-spacing: 3px; }

/* 海外传播面板 */
.overseas-panel { margin-top: 16px; }
.overseas-title { color: var(--gold); letter-spacing: 3px; font-size: 14px; margin-bottom: 8px; }
.overseas-list { display: flex; flex-wrap: wrap; gap: 8px; }
.overseas-chip {
  padding: 5px 12px; border-radius: 16px; font-size: 12.5px;
  background: var(--bg-3); border: 1px solid var(--line); color: var(--ink-dim);
}
.overseas-chip b { color: var(--accent-soft); font-weight: 500; }

/* ---------- 进入视口淡入 ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 700px) {
  #topnav { padding: 10px 16px; gap: 10px; }
  .nav-brand { font-size: 15px; letter-spacing: 3px; }
  .nav-links { gap: 10px; }
  .nav-link { font-size: 13px; letter-spacing: 2px; }
  .chapter { padding: 80px 5vw 60px; }
}
/* 1366×768 等较矮屏幕：压缩超高图表，避免滚动过多 */
@media (max-height: 800px) {
  .chart-box.tall { height: 56vh; min-height: 340px; }
  #hero { min-height: 92vh; }
  .chart-box.radar { height: 380px; }
  .change-grid-main .chart-box { height: 340px; }
}

/* ============================================================
   v0.2-R2 · 源章节叙事型 SVG 覆盖样式
   ============================================================ */
.chapter-source {
  min-height: 100vh;
  padding-top: 78px;
  background:
    radial-gradient(ellipse at 54% 35%, rgba(176,141,87,.055), transparent 48%),
    linear-gradient(180deg, #141109 0%, #12100b 100%);
}
.source-head { padding-bottom: 8px; }
.source-head .chapter-lead {
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  color: rgba(176,141,87,.55);
  font-size: 13px;
  letter-spacing: 3px;
}
.source-time-note {
  margin-top: 6px;
  text-align: center;
  color: rgba(176,141,87,.55);
  font-size: 13px;
  letter-spacing: 3px;
}
.source-stage-wrap { max-width: 1580px; }
.source-stage-wrap::before { display: none; }
.source-stage {
  width: 100%;
  height: auto;
  position: relative;
  overflow: visible;
}
.source-svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}
.source-layer-label { opacity: 1; }
.source-layer-label text {
  fill: #7f705a;
  font-size: 13px;
  letter-spacing: 4px;
}
.source-layer-label line {
  stroke: rgba(176,141,87,.09);
  stroke-width: 1;
  stroke-dasharray: 2 10;
}
.source-edge { opacity: 1; }
.source-edge-line {
  fill: none;
  stroke: #8f7958;
  stroke-width: 1.5;
  opacity: .58;
  transition: opacity .22s ease, stroke .22s ease, stroke-width .22s ease;
}
.source-edge-dashed .source-edge-line { stroke-dasharray: 7 7; }
/* 五级主链：金色加粗（次要边保持默认灰细线）；汇聚终点由 .source-edge-core 覆盖为最强 */
.source-edge-main .source-edge-line { stroke: #c8a25e; stroke-width: 2.2; opacity: .85; }
.source-edge-core .source-edge-line { stroke: #c8a25e; stroke-width: 2.4; opacity: .9; }
.source-edge-hit { fill: none; stroke: transparent; stroke-width: 16; cursor: help; }
.source-hovering .source-edge-line { opacity: .16; }
.source-edge.active .source-edge-line { opacity: 1; stroke: #d3ab68; stroke-width: 2.8; }
/* 关系标签：默认可见（不依赖 hover），小字号金色低透明度 */
.source-edge-label {
  fill: #c9a05a;
  font-size: 12px;
  letter-spacing: 2px;
  paint-order: stroke;
  stroke: #131009;
  stroke-width: 4px;
  opacity: .72;
  pointer-events: none;
}
.source-node {
  opacity: 1;
  cursor: default;
  transition: filter .2s ease;
}
.source-node rect {
  fill: rgba(27,22,16,.94);
  stroke: rgba(176,141,87,.5);
  stroke-width: 1.3;
  transition: stroke .2s ease, fill .2s ease;
}
.source-node-mid rect {
  fill: rgba(33,27,20,.96);
  stroke: rgba(200,170,110,.62);
  stroke-width: 1.6;
}
.source-node-origin rect {
  fill: rgba(24,20,15,.92);
  stroke: rgba(150,130,95,.42);
  stroke-width: 1.2;
}
.source-node-name {
  fill: #e7dcc8;
  font-family: "STSong", "Songti SC", "SimSun", serif;
  font-size: 16px;
  letter-spacing: 1px;
  pointer-events: none;
}
.source-node-sub {
  fill: #8f8268;
  font-size: 11px;
  letter-spacing: 2px;
  pointer-events: none;
}
.source-knot { fill: #b08d57; }
.source-node:hover rect, .source-node.active rect { stroke: #d1a15f; fill: rgba(38,29,19,.98); }
.source-node-core { filter: url(#src-glow); }
.source-node-core rect { fill: rgba(135,47,34,.94); stroke: #caa15f; stroke-width: 2; }
.source-node-core .source-node-name { fill: #fff4df; font-size: 24px; letter-spacing: 3px; }
.source-node-core .source-node-sub { fill: #e3c9a0; font-size: 12px; }
.source-node-core .source-knot { fill: #e5c489; }
.source-tooltip {
  position: absolute;
  z-index: 4;
  width: min(340px, calc(100vw - 50px));
  padding: 12px 14px;
  border: 1px solid rgba(176,141,87,.34);
  background: rgba(18,15,10,.96);
  box-shadow: 0 14px 40px rgba(0,0,0,.32);
  color: var(--ink-dim);
  font-size: 13px;
  line-height: 1.65;
  pointer-events: none;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity .15s ease, transform .15s ease;
}
.source-tooltip.show { opacity: 1; transform: none; }
.source-tip-rel { color: #e6d9c3; margin-bottom: 5px; }
.source-tip-rel span { color: #b08d57; }
.source-tooltip p { color: #9b8d76; }
.source-foot {
  border-top: 1px solid rgba(176,141,87,.16);
  padding-top: 16px;
  margin-top: -2px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.source-legend {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--ink-faint);
  font-size: 12.5px;
  letter-spacing: 2px;
}
.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.legend-line {
  display: inline-block;
  width: 42px;
  height: 2px;
  vertical-align: middle;
}
.legend-solid {
  background: #8f7958;
  box-shadow: 0 0 0 2px rgba(19,16,9,.8);
}
.legend-dashed {
  background: repeating-linear-gradient(90deg, #8f7958 0 6px, transparent 6px 12px);
  box-shadow: 0 0 0 2px rgba(19,16,9,.8);
}
.legend-main {
  background: #c8a25e;
  box-shadow: 0 0 0 2px rgba(19,16,9,.8);
}
/* 已移除：一条主线，五代演化 一行主链（叙事由图上金色主链承担） */
/* 默认展示的 8 条核心关系 */
.source-core-panel {
  margin-top: 34px;
  border-top: 1px solid rgba(176,141,87,.2);
}
.source-core-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 28px 0 18px;
}
.source-core-kicker {
  color: var(--accent-soft);
  font-size: 12px;
  letter-spacing: 4px;
}
.source-core-head h3 {
  color: var(--ink);
  font-size: 20px;
  letter-spacing: 2px;
  font-weight: 500;
}
.source-core-grid {
  padding-bottom: 6px;
}
/* 源 · 手风琴（核心关系 / 完整关系，默认收起） */
.source-core-panel { margin-top: 10px; border-top: none; }
.source-full-panel { margin-top: 6px; }
.source-acc-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  list-style: none;
  margin-top: 20px;
  padding: 13px 18px;
  border: 1px solid rgba(176,141,87,.28);
  border-radius: 4px;
  background: linear-gradient(90deg, rgba(176,141,87,.07), rgba(176,141,87,.02));
  user-select: none;
  transition: border-color .2s ease, background .2s ease;
}
.source-acc-summary:hover {
  border-color: rgba(200,162,94,.55);
  background: linear-gradient(90deg, rgba(176,141,87,.12), rgba(176,141,87,.04));
}
.source-acc-summary::-webkit-details-marker { display: none; }
.source-acc-kicker {
  color: var(--accent-soft);
  font-size: 12px;
  letter-spacing: 4px;
  flex: none;
}
.source-acc-title {
  color: var(--ink);
  font-size: 17px;
  letter-spacing: 2px;
  font-weight: 500;
  flex: 1 1 auto;
}
.source-acc-more {
  margin-left: auto;
  flex: none;
  color: #c9a05a;
  font-size: 14px;
  letter-spacing: 1px;
  white-space: nowrap;
}
.source-acc-more::before { content: "▸ 展开"; }
details[open] > .source-acc-summary .source-acc-more::before { content: "▾ 收起"; }
.source-acc-body { padding-bottom: 8px; }
.source-acc-group { margin-top: 6px; }
.source-acc-group-title {
  color: var(--gold);
  font-size: 13px;
  letter-spacing: 3px;
  margin: 14px 0 10px;
  font-weight: 500;
}
.source-acc-group .source-rel-grid { padding-bottom: 6px; }
.source-rel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 10px 18px;
  padding-bottom: 30px;
}
.source-rel-card {
  padding: 14px 16px;
  border-left: 1px solid rgba(176,141,87,.32);
  background: linear-gradient(90deg, rgba(176,141,87,.045), transparent 76%);
}
.source-rel-line { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; font-size: 14px; }
.source-rel-line b { color: var(--ink); font-weight: 500; }
.source-rel-line span { color: var(--gold); font-size: 14px; padding: 0 4px; }
.source-rel-card p {
  margin-top: 7px;
  color: var(--ink-faint);
  font-size: 12.5px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.source-rel-card small { display: inline-block; margin-top: 6px; color: #655945; font-size: 11px; }
@keyframes srcFade { to { opacity: 1; } }
@keyframes srcNodeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@media (max-height: 800px) {
  .source-stage { height: auto; }
  .source-head { padding-bottom: 4px; }
}
@media (max-width: 1050px) {
  .source-stage { height: auto; overflow-x: auto; overflow-y: hidden; }
  .source-svg { min-width: 1150px; }
  .source-rel-grid { grid-template-columns: 1fr; }
  .source-full-head { align-items: flex-start; flex-direction: column; }
  .source-full-head p { text-align: left; }
}

/* 低风险全站措辞升级后的细节可读性 */
.hero-sub { max-width: 700px; margin-left: auto; margin-right: auto; }
#chapter-sound .chapter-lead { max-width: 820px; }

/* ---------- 贰 · 脉：代际分层师承树 ---------- */
.lineage-stage { height: auto; min-height: 320px; }
.lineage-svg { display: block; width: 100%; height: auto; }
.ln-tier {
  fill: #7f705a; font-size: 13px; letter-spacing: 2px;
}
.ln-leg { fill: #a99574; font-size: 13px; letter-spacing: 1px; }
.ln-leg-main { fill: #c8a25e; }
.ln-edge { opacity: 1; }
.ln-edge-line { fill: none; transition: opacity .2s ease, stroke-width .2s ease; }
.ln-edge-hit { fill: none; stroke: transparent; stroke-width: 14; cursor: help; }
.ln-edge.active .ln-edge-line { opacity: 1 !important; stroke-width: 4 !important; }
.ln-node { opacity: 1; cursor: pointer; transition: filter .2s ease; }
.ln-node rect {
  fill: rgba(30,25,18,.95);
  stroke: rgba(176,141,87,.45);
  stroke-width: 1.2;
  transition: stroke .2s ease, fill .2s ease;
}
.ln-node:hover rect, .ln-node.active rect { stroke: #d1a15f; fill: rgba(42,33,21,.98); }
.ln-node-name {
  fill: #ece2cf; font-family: "STSong", "Songti SC", "SimSun", serif;
  font-size: 15px; letter-spacing: 2px;
  pointer-events: none;
}
.ln-node-main rect { stroke: #c8a25e; stroke-width: 2; }
.ln-node-main .ln-node-name { fill: #fff4df; }
.ln-node-main { filter: url(#ln-glow); }
.lineage-tooltip {
  position: absolute;
  z-index: 4;
  width: min(340px, calc(100vw - 50px));
  padding: 12px 14px;
  border: 1px solid rgba(176,141,87,.34);
  background: rgba(18,15,10,.96);
  box-shadow: 0 14px 40px rgba(0,0,0,.32);
  color: var(--ink-dim);
  font-size: 13px;
  line-height: 1.65;
  pointer-events: none;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity .15s ease, transform .15s ease;
}
.lineage-tooltip.show { opacity: 1; transform: none; }
.ln-tip-rel { color: #e6d9c3; margin-bottom: 5px; }
.ln-tip-rel span { color: #b08d57; }
.lineage-tooltip p { color: #9b8d76; }
.pp-none { color: #90816c; font-size: 13px; }

/* ===== 脉章 可读性优化（提亮对比 + 加大字号）—— 仅作用于本章 ===== */
#chapter-lineage { padding-top: 110px; padding-bottom: 100px; padding-left: clamp(28px, 4vw, 84px); padding-right: clamp(28px, 4vw, 84px); }
#chapter-lineage .chapter-body { max-width: 1640px; }
#chapter-lineage .chart-box {
  background: #221d17;
  border: 1px solid rgba(216,181,109,.22);
}
#chapter-lineage .chart-note { color: #cfc4ab; font-size: 18px; line-height: 1.8; }
#chapter-lineage .ln-node rect {
  fill: #2a231c;
  stroke: rgba(206,182,138,.40);
  stroke-width: 1.4;
}
#chapter-lineage .ln-node:hover rect,
#chapter-lineage .ln-node.active rect { stroke: #e8c890; fill: #33291f; }
#chapter-lineage .ln-node-main rect { stroke: #f0c973; stroke-width: 2.4; }
#chapter-lineage .ln-node-cluster rect { stroke: rgba(150,172,200,.72); stroke-dasharray: 6 4; fill: #232a2e; stroke-width: 1.6; }
#chapter-lineage .ln-node-cluster:hover rect { stroke: #9fc0e0; fill: #2a323a; }
#chapter-lineage .ln-cluster-name { fill: #bcd0e0; font-size: 22px; }

/* 聚焦区（主图下方）：点击人物 → 树状聚焦 + 作品谱 */
.lineage-focus {
  margin-top: 26px; padding: 20px 24px;
  border-top: 1px solid rgba(216,181,109,.25);
  background: linear-gradient(180deg, rgba(38,31,22,.5), rgba(38,31,22,.18));
  border-radius: 6px;
}
.lineage-focus:not(.show) { display: none; }
.focus-head { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; flex-wrap: wrap; }
.focus-back {
  background: none; border: 1px solid rgba(216,181,109,.35); border-radius: 4px;
  color: #cdbfa2; font-size: 14px; padding: 6px 12px; cursor: pointer; letter-spacing: 1px;
}
.focus-back:hover { color: #fff; border-color: #e0a65c; }
.focus-head h4 { font-size: 22px; letter-spacing: 3px; color: #f3ead9; font-weight: 500; }
.focus-meta { color: #b6a98e; font-size: 14px; }
.focus-body { display: flex; gap: 22px; align-items: flex-start; flex-wrap: wrap; }
.focus-tree { flex: 1 1 420px; min-width: 320px; }
.focus-svg { display: block; width: 100%; max-width: 100%; height: auto; }
.focus-edge { fill: none; }
.focus-node { cursor: pointer; }
.focus-node rect { fill: #2a231c; stroke: rgba(206,182,138,.5); stroke-width: 1.4; rx: 4; transition: stroke .2s ease, fill .2s ease; }
.focus-node:hover rect { stroke: #f0c973; fill: #33291f; }
.focus-person rect { fill: #38240f; stroke: #e0a65c; stroke-width: 2; }
.focus-name { fill: #efe6d2; font-family: "STSong","Songti SC",serif; font-size: 17px; letter-spacing: 1px; }
.focus-person .focus-name { fill: #ffe9c8; font-size: 18px; }
.focus-works { flex: 0 0 240px; max-width: 240px; }
.works-head { color: #d8b56d; letter-spacing: 3px; font-size: 13px; margin-bottom: 10px; }
.works-list { display: flex; flex-direction: column; gap: 8px; max-height: 260px; overflow-y: auto; }
.work-chip {
  display: flex; align-items: center; gap: 8px; padding: 7px 10px;
  border: 1px solid rgba(216,181,109,.18); border-radius: 4px; background: rgba(34,29,22,.7);
}
.work-title { color: #eee2cc; font-size: 14.5px; letter-spacing: .5px; flex: 1; }
.work-rel { font-size: 11px; color: var(--c); letter-spacing: 1px; border: 1px solid var(--c); border-radius: 3px; padding: 1px 5px; flex: none; }
.work-play { background: none; border: none; color: #d8b56d; cursor: pointer; font-size: 12px; flex: none; }
.work-none { color: #8f8268; font-size: 13px; }

/* 门生可视化弹窗 */
body.modal-open { overflow: hidden; }
.cluster-modal {
  position: fixed; inset: 0; z-index: 120;
  display: flex; align-items: center; justify-content: center;
  background: rgba(6,7,7,.78); backdrop-filter: blur(4px);
}
.cluster-modal-card {
  max-width: min(1180px, 94vw);
  padding: 22px 26px 18px;
  background: #17130f; border: 1px solid rgba(216,181,109,.3); border-radius: 6px;
  box-shadow: 0 24px 70px rgba(0,0,0,.55);
}
.cluster-modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.cluster-modal-head h4 { font-size: 20px; letter-spacing: 3px; color: #f1e7d2; font-weight: 500; }
.cluster-modal-head h4 span { margin-left: 8px; color: #d8b56d; font-size: 14px; }
.cluster-modal-close {
  background: none; border: 1px solid rgba(216,181,109,.35); border-radius: 4px;
  color: #cfc4ab; font-size: 22px; line-height: 1; width: 34px; height: 32px; cursor: pointer;
}
.cluster-modal-close:hover { color: #fff; border-color: #e0a65c; }
.cluster-modal-body { overflow-x: auto; }
.cluster-svg { display: block; width: auto; max-width: 100%; height: auto; }
.cluster-node rect { fill: #241f18; stroke: rgba(216,181,109,.45); stroke-width: 1.3; rx: 4; }
.cluster-node.cluster-member { cursor: pointer; }
.cluster-node.cluster-member:hover rect { stroke: #f0c973; fill: #2e2620; }
.cluster-teacher rect { fill: #38240f; stroke: #e0a65c; stroke-width: 2; }
.cluster-name { fill: #efe6d2; font-family: "STSong","Songti SC",serif; font-size: 16px; letter-spacing: 1px; }
.cluster-teacher .cluster-name { fill: #ffe9c8; font-size: 17px; }
.cluster-work { fill: #a99b84; font-size: 10px; letter-spacing: 0; }
.cluster-edge { fill: none; }
.cluster-modal-note { margin-top: 10px; color: #8f8268; font-size: 12.5px; letter-spacing: 1px; }
#chapter-lineage .ln-node-name { font-size: 26px; fill: #f3ead9; }
#chapter-lineage .ln-node-main .ln-node-name { fill: #fff6e4; }
#chapter-lineage .ln-tier { fill: #c6b697; font-size: 24px; letter-spacing: 2px; }
#chapter-lineage .ln-leg { fill: #cdbfa2; font-size: 24px; }
#chapter-lineage .ln-leg-main { fill: #efc573; }
#chapter-lineage .lineage-tooltip { color: #cec3a9; font-size: 18px; }
#chapter-lineage .ln-tip-rel { color: #f2e9d7; }
#chapter-lineage .ln-tip-rel span { color: #d8b56d; }
#chapter-lineage .lineage-tooltip p { color: #c4b89f; }
#chapter-lineage .pp-none { color: #b6a98e; font-size: 17px; }
#chapter-lineage .chapter-lead { font-size: 19px; }
#chapter-lineage .chapter-no {
  display: inline-flex; align-items: baseline; gap: 11px;
  font-size: 21px; letter-spacing: 6px;
  color: #b9aa8c; margin-bottom: 20px;
}
#chapter-lineage .chapter-no::before {
  content: ""; width: 34px; height: 2.5px; align-self: center; margin-right: 3px;
  background: linear-gradient(90deg, #c65d4d, #e0a65c);
}
#chapter-lineage .cn-num { color: #e8937c; font-size: 32px; letter-spacing: 3px; font-family: "STSong","Songti SC",serif; }
#chapter-lineage .cn-dot { color: #9b8a6e; }
#chapter-lineage .cn-name { color: #efdfc2; font-size: 24px; letter-spacing: 8px; }
#chapter-lineage h2 { font-size: clamp(34px, 4.4vw, 54px); letter-spacing: 4px; }
#chapter-lineage .chapter-lead { max-width: 960px; }

/* ===== 源章 可读性优化（与脉章同规格）===== */
#chapter-source { padding-top: 110px; padding-bottom: 100px; padding-left: clamp(28px, 4vw, 84px); padding-right: clamp(28px, 4vw, 84px); }
#chapter-source .chapter-no { font-size: 19px; letter-spacing: 6px; }
#chapter-source h2 { font-size: clamp(34px, 4.4vw, 54px); letter-spacing: 5px; }
#chapter-source .chapter-lead { font-size: 19px; max-width: 960px; }
#chapter-source .source-time-note { font-size: 15px; color: rgba(216,181,109,.85); }
#chapter-source .source-node-name { font-size: 20px; fill: #f3ead9; }
#chapter-source .source-node-core .source-node-name { font-size: 25px; }
#chapter-source .source-node rect { fill: #2a231c; stroke: rgba(206,182,138,.5); stroke-width: 1.6; }
#chapter-source .source-node-mid rect { fill: #2e2620; stroke: rgba(216,181,109,.62); }
#chapter-source .source-node-origin rect { fill: #262019; stroke: rgba(180,158,120,.5); }
#chapter-source .source-edge-label { font-size: 15px; fill: #d8b56d; }
#chapter-source .source-layer-label text { font-size: 15px; fill: #a99574; }
#chapter-source .source-legend { font-size: 14.5px; color: #cbbca0; }

/* ---- ���� �� ʦ�й�ϵ����������ҫʽ���ɵ�����---- */
#chapter-lineage .lineage-stage { overflow: visible; }
#chapter-lineage .ego-svg { display: block; width: 100%; height: auto; }
#chapter-lineage .ego-edge { fill: none; }
#chapter-lineage .ego-rel { font-size: 12px; letter-spacing: 1px; fill: #d8b56d; paint-order: stroke; stroke: #17130f; stroke-width: 3px; }
#chapter-lineage .ego-node { cursor: pointer; }
#chapter-lineage .ego-node rect { fill: #2a231c; stroke: rgba(206,182,138,.5); stroke-width: 1.4; transition: stroke .2s ease, fill .2s ease; }
#chapter-lineage .ego-node:hover rect { stroke: #f0c973; fill: #33291f; }
#chapter-lineage .ego-person rect { fill: #38240f; stroke: #e0a65c; stroke-width: 2; }
#chapter-lineage .ego-name { fill: #efe6d2; font-family: "STSong","Songti SC",serif; font-size: 16px; letter-spacing: 1px; }
#chapter-lineage .ego-person .ego-name { fill: #ffe9c8; font-size: 19px; }
#chapter-lineage .ego-works { margin-top: 14px; max-width: 520px; }
#chapter-lineage .works-head { color: #d8b56d; letter-spacing: 3px; font-size: 13px; margin-bottom: 8px; }
#chapter-lineage .works-list { display: flex; flex-wrap: wrap; gap: 8px; }
#chapter-lineage .work-chip { display: flex; align-items: center; gap: 7px; padding: 6px 9px; border: 1px solid rgba(216,181,109,.18); border-radius: 4px; background: rgba(34,29,22,.7); }
#chapter-lineage .work-title { color: #eee2cc; font-size: 13.5px; letter-spacing: .5px; }
#chapter-lineage .work-rel { font-size: 11px; color: var(--c); border: 1px solid var(--c); border-radius: 3px; padding: 1px 5px; }
#chapter-lineage .work-play { background: none; border: none; color: #d8b56d; cursor: pointer; font-size: 11px; }
#chapter-lineage .work-none { color: #8f8268; font-size: 13px; }
#chapter-lineage .ego-meta { margin-top: 12px; color: #b6a98e; font-size: 14.5px; letter-spacing: 1px; }

/* ---- ���� �� ����״��ϵ����������ڵ��չ����---- */
#chapter-lineage .radial-wrap { max-width: 100%; }
#chapter-lineage .radial-svg { display: block; width: 100%; max-width: 920px; height: auto; margin: 0 auto; }
#chapter-lineage .radial-edge { fill: none; }
#chapter-lineage .radial-rel { font-size: 12px; letter-spacing: 1px; fill: #d8b56d; paint-order: stroke; stroke: #17130f; stroke-width: 3px; }
#chapter-lineage .radial-node { cursor: pointer; }
#chapter-lineage .radial-node rect { fill: #2a231c; stroke: rgba(206,182,138,.5); stroke-width: 1.4; transition: stroke .2s ease, fill .2s ease; }
#chapter-lineage .radial-node:hover rect { stroke: #f0c973; fill: #33291f; }
#chapter-lineage .radial-person rect { fill: #38240f; stroke: #e0a65c; stroke-width: 2; }
#chapter-lineage .radial-name { fill: #efe6d2; font-family: "STSong","Songti SC",serif; font-size: 16px; letter-spacing: 1px; }
#chapter-lineage .radial-person .radial-name { fill: #ffe9c8; font-size: 18px; }
#chapter-lineage .focus-tree { max-width: 100%; }

/* ratio chart height */
#chapter-lineage .focus-tree { min-width: 0; }
#chapter-lineage #radial-chart { width: 100%; height: 600px; }

/* spread chapter: legend + detail table */
.spread-legend { display:flex; flex-wrap:wrap; gap:10px; align-items:center; margin-left:14px; }
.spread-legend .type-btn { background:none; border:1px solid rgba(216,181,109,.25); border-radius:4px; color:#cbbca0; padding:3px 10px; cursor:pointer; font-size:12.5px; display:inline-flex; align-items:center; gap:6px; }
.spread-legend .type-btn i { width:10px; height:10px; border-radius:2px; display:inline-block; }
.spread-legend .type-btn.active { color:#fff; border-color:#e0a65c; }
.spread-detail { margin-top:18px; }
.spread-detail-head { display:flex; align-items:baseline; gap:10px; margin-bottom:8px; }
.detail-title { color:#d8b56d; letter-spacing:3px; font-size:14px; }
.detail-count { color:#a99b84; font-size:12.5px; }
.spread-detail-table { max-height:340px; overflow:auto; border:1px solid rgba(216,181,109,.18); border-radius:6px; }
.spread-detail-table table { width:100%; border-collapse:collapse; font-size:12.5px; color:#d8cfbc; }
.spread-detail-table th { position:sticky; top:0; background:#1d1812; color:#b9aa8c; text-align:left; padding:7px 10px; border-bottom:1px solid rgba(216,181,109,.2); letter-spacing:1px; }
.spread-detail-table td { padding:6px 10px; border-bottom:1px solid rgba(216,181,109,.08); vertical-align:top; }
.spread-detail-table tr:hover td { background:rgba(216,181,109,.05); }
.tdot { width:8px; height:8px; border-radius:50%; display:inline-block; margin-right:5px; }

/* spread single-thumb timeline slider */
.spread-slider-row { display:flex; align-items:center; gap:14px; padding:4px 2px 12px; flex-wrap:wrap; }
.spread-range { -webkit-appearance:none; appearance:none; width:min(720px,100%); height:10px; border-radius:6px; background:linear-gradient(90deg, rgba(224,166,92,.55) 0%, rgba(224,166,92,.55) var(--fill,100%), rgba(74,64,48,.9) var(--fill,100%)); outline:none; }
.spread-range::-webkit-slider-thumb { -webkit-appearance:none; width:22px; height:22px; border-radius:50%; background:#e0a65c; border:3px solid #2a2419; box-shadow:0 0 10px rgba(224,166,92,.7); cursor:pointer; }
.spread-range::-moz-range-thumb { width:22px; height:22px; border-radius:50%; background:#e0a65c; border:3px solid #2a2419; cursor:pointer; }
.slider-val { color:#f0c973; font-size:15px; min-width:52px; letter-spacing:1px; }

/* heritage positive-energy callout */
.heritage-box { margin-top: 14px; padding: 14px 18px; border: 1px solid rgba(216,181,109,.28); border-radius: 6px; background: linear-gradient(90deg, rgba(216,181,109,.10), rgba(216,181,109,.02)); }
.heritage-box b { color: #e0a65c; letter-spacing: 2px; font-size: 14px; display: block; margin-bottom: 6px; }
.heritage-box span { color: #cdbfa2; font-size: 14px; line-height: 1.7; }

/* ��Ʒ��Ԫ�أ����ݿ��ӻ����⣬����ʹ�ã� */
.nav-brand { display: flex; align-items: center; gap: 8px; }
.nav-logo { width: 26px; height: 26px; border-radius: 50%; object-fit: cover; border: 1px solid rgba(216,181,109,.4); }
.hero-bg { position: absolute; inset: 0; background: url(../assets/img/hero-bg.jpg) center/cover no-repeat; opacity: .14; filter: brightness(.75) saturate(.8); pointer-events: none; }
.mascot-row { display: flex; gap: 16px; align-items: center; margin: 18px 0 12px; padding: 14px 16px; border: 1px solid rgba(216,181,109,.22); border-radius: 8px; background: rgba(34,29,22,.5); }
.mascot-img { width: 84px; height: 84px; object-fit: contain; filter: drop-shadow(0 6px 16px rgba(0,0,0,.5)); flex: none; }
.mascot-row b { color: #e0a65c; letter-spacing: 2px; font-size: 14px; }
.mascot-txt { color: #b6a98e; font-size: 13.5px; line-height: 1.7; margin: 4px 0 8px; }
.bgm-btn { background: none; border: 1px solid rgba(216,181,109,.35); border-radius: 4px; color: #cdbfa2; font-size: 13px; padding: 5px 12px; cursor: pointer; }
.bgm-btn.on { color: #f0c973; border-color: #e0a65c; }

/* torch passage gallery */
.torch-gallery { margin-top: 16px; padding: 20px 18px 14px; border: 1px solid rgba(216,181,109,.25); border-radius: 8px; background: linear-gradient(180deg, rgba(38,31,22,.55), rgba(38,31,22,.15)); }
.torch-phrase { text-align: center; color: #f0c973; font-size: 24px; letter-spacing: 9px; margin: 0 0 6px; font-family: "STSong","Songti SC",serif; }
.torch-sub { text-align: center; color: #b6a98e; font-size: 14px; letter-spacing: 2px; margin: 0 0 16px; }
.torch-imgs { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.torch-imgs figure { margin: 0; border-radius: 6px; overflow: hidden; border: 1px solid rgba(216,181,109,.2); background: #17130f; }
.torch-imgs img { width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block; transition: transform .35s ease; }
.torch-imgs figure:hover img { transform: scale(1.06); }
.torch-imgs figcaption { color: #cdbfa2; font-size: 12px; letter-spacing: 2px; padding: 7px 8px; text-align: center; }

/* �����״�ս��ͼ ���� */
.school-radars { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.school-radar-card { border: 1px solid rgba(216,181,109,.22); border-radius: 8px; background: rgba(34,29,22,.5); padding: 12px 14px 10px; }
.school-radar-card h4 { margin: 0 0 2px; color: #f1e7d2; font-size: 18px; letter-spacing: 2px; }
.sr-note { margin: 0 0 6px; color: #b6a98e; font-size: 12.5px; line-height: 1.6; min-height: 34px; }
.sr-chart { width: 100%; height: 320px; }
.sr-tag { display: inline-block; margin-top: 4px; color: #8f8268; font-size: 11px; letter-spacing: 1px; }
.sr-tag i { font-style: normal; color: #d8b56d; }

/* rms stats row */
.rms-stats { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 8px; }
.rms-stat { display: inline-flex; align-items: baseline; gap: 7px; }
.rms-stat i { font-style: normal; color: #a99b84; font-size: 12.5px; letter-spacing: 1px; }
.rms-stat b { color: #e9dfc6; font-size: 16px; font-weight: 500; font-family: "STSong","Songti SC",serif; }

/* ���£���չʾָ������������������α꣩ */
.rms-readout { display: none; }

/* ���߹켣�� */
.pitch-kicker { display: flex; gap: 10px; align-items: baseline; margin: 14px 0 6px; color: #b6a98e; font-size: 12px; letter-spacing: 1px; }
.pitch-kicker .plot-kicker { color: #d8b56d; }
.chart-box.pitch { width: 100%; height: 260px; }

/* ʵʱ����ʾ���� */
.live-scope { margin-top: 12px; }
.live-scope-head { display: flex; gap: 10px; align-items: baseline; margin-bottom: 6px; color: #b6a98e; font-size: 12px; letter-spacing: 1px; }
.live-scope-head .plot-kicker { color: #d8b56d; }
.live-wave { width: 100%; height: 120px; display: block; border: 1px solid rgba(216,181,109,.14); border-radius: 6px; background: #14100b; }
.live-spectrum { width: 100%; height: 56px; display: block; margin-top: 6px; border: 1px solid rgba(216,181,109,.10); border-radius: 6px; background: #14100b; }

/* ��������������/��ͣ + ��Ŀ�л� + ������ */
.player { display: flex; flex-direction: column; gap: 8px; padding: 16px 18px; border: 1px solid rgba(216,181,109,.22); border-radius: 8px; background: rgba(34,29,22,.4); }
.player-row { display: flex; align-items: center; gap: 14px; }
.pp-btn { width: 46px; height: 46px; border-radius: 50%; background: none; border: 1px solid rgba(216,181,109,.35); color: #e9dfc6; font-size: 18px; cursor: pointer; flex: none; }
.pp-btn.playing { border-color: #e0a65c; color: #f0c973; }
.player-meta { flex: 1; min-width: 0; }
.player-track { color: #f1e7d2; font-size: 17px; letter-spacing: 1px; }
.player-performer { color: #a99b84; font-size: 13px; }
.player-switch { display: flex; gap: 8px; }
.player-switch button { background: none; border: 1px solid rgba(216,181,109,.25); border-radius: 5px; color: #cdbfa2; font-size: 13px; padding: 6px 12px; cursor: pointer; }
.player-switch button:hover { border-color: #e0a65c; color: #f0c973; }
.player-progress { height: 8px; border-radius: 4px; background: rgba(216,181,109,.12); overflow: hidden; }
.player-fill { height: 100%; width: 0; background: linear-gradient(90deg, #b3422f, #e0a65c); border-radius: 4px; transition: width .1s linear; }
.player-time-row { display: flex; gap: 8px; color: #a99b84; font-size: 13px; }

/* ���£�ʵʱ/ȫ�� ���� */
.sound-viz-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: stretch; }
@media (max-width: 860px) { .sound-viz-grid { grid-template-columns: 1fr; } }
.sound-viz-panel { border: 1px solid rgba(216,181,109,.22); border-radius: 8px; background: rgba(34,29,22,.35); padding: 12px 14px; display: flex; flex-direction: column; }
.sound-viz-head { display: flex; gap: 10px; align-items: baseline; margin-bottom: 8px; color: #b6a98e; font-size: 12.5px; letter-spacing: 1px; }
.sound-viz-head strong { color: #f1e7d2; font-size: 15px; letter-spacing: 1px; }
.sound-viz-head span:last-child { color: #a99b84; }
.viz-tag { color: #d8b56d; font-size: 11px; font-weight: 700; letter-spacing: 2px; }
.sound-viz-panel .live-wave { width: 100%; height: 150px; flex: 1; }
.sound-viz-panel .live-spectrum { width: 100%; height: 56px; margin-top: 6px; }
.sound-viz-panel .chart-box.rms { flex: 1; min-height: 240px; }

/* ============================================================
   声学可视化补充（v0.4 精修）
   ============================================================ */
.player-progress {
  cursor: pointer;
}
.viz-sub-label {
  display: block;
  color: #8f8268;
  font-size: 11px;
  letter-spacing: 1px;
  margin: 2px 0 6px;
}
#rms-chart {
  cursor: pointer;
}

/* 深色展陈风格滚动条 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(216,181,109,.25);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(216,181,109,.4);
}
html {
  scrollbar-color: rgba(216,181,109,.3) transparent;
  scrollbar-width: thin;
}

.track-index {
  color: #a99b84;
  font-size: 12px;
  letter-spacing: 1px;
  align-self: center;
  margin-right: 4px;
}

/* v0.4-fixed：交互状态、响应式与无障碍 */
.spread-counts { color: #c9bda6; font-size: 12px; letter-spacing: .5px; }
.player-progress { position: relative; overflow: visible; --progress: 0%; }
.player-thumb {
  position: absolute; top: 50%; left: var(--progress); width: 14px; height: 14px;
  border-radius: 50%; transform: translate(-50%, -50%); background: #f0c973;
  border: 2px solid #2a2419; box-shadow: 0 0 7px rgba(224,166,92,.65); pointer-events: none;
}
.player-status { min-height: 1.4em; color: #b6a98e; font-size: 12.5px; }
.player-status:empty { display: none; }
.player-status.error, .module-error { color: #e8937c; }
.sr-charts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.sr-charts > div { min-width: 0; text-align: center; }
.sr-charts .sr-chart { height: 230px; }
.sr-charts .sr-tag { margin-top: 6px; }
.boot-error {
  position: fixed; z-index: 300; left: 50%; top: 74px; transform: translateX(-50%);
  width: min(760px, calc(100vw - 32px)); padding: 12px 16px; border: 1px solid #b3422f;
  border-radius: 6px; background: rgba(43,22,16,.97); color: #f1e7d2; box-shadow: 0 12px 30px rgba(0,0,0,.45);
}
.boot-error strong { display: block; color: #e8937c; }
.boot-error span { font-size: 13px; }
button:focus-visible, a:focus-visible, [role="slider"]:focus-visible, .src-toggle:focus-visible {
  outline: 2px solid #f0c973; outline-offset: 3px;
}

@media (max-width: 700px) {
  #topnav { flex-wrap: nowrap; }
  .nav-links { min-width: 0; gap: 4px; }
  .nav-link { padding: 4px; }
  .player-row { align-items: flex-start; flex-wrap: wrap; }
  .player-meta { flex-basis: calc(100% - 64px); }
  .player-switch { width: 100%; justify-content: flex-end; }
  .sr-charts { grid-template-columns: 1fr; }
  .sr-charts .sr-chart { height: 260px; }
  .source-stage { overscroll-behavior-x: contain; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}