/* ═══════════════════════════════════════════════════════════
   Sixty-Six Years of Inference Silicon · Professional English Edition
   White surface / deep-navy ink / electric-blue accent.
   Benchmark: McKinsey Insights, GS/MS equity research layouts.
   All selectors preserved from v4; values re-tokenized.
   Editorial reskin: ET Book serif (400/700 only) + ink scale +
   electric-blue family + hairline components. One chart, one family.
   ═══════════════════════════════════════════════════════════ */
:root {
  --paper: #ffffff;
  --paper-hi: #f7f9fc;      /* panel */
  --ink: #051c2c;           /* deep navy */
  --ink-md: #42566a;
  --ink-lo: #8595a6;
  --line: #dbe2ea;
  --line-lo: #eef1f6;
  --red: #2251ff;           /* accent slot → electric blue */
  --red-hi: #1233b8;
  --blue: #2251ff;          /* primary accent — electric blue */
  --blue-hi: #1233b8;       /* deep blue */
  --blue-lo: #7d9bff;       /* light blue */
  --copper: #996a0d;        /* reserved: four-category source badges / status taxonomies */
  --green: #008267;         /* reserved: four-category source badges / status taxonomies */
  --violet: #7a45c9;        /* reserved: four-category source badges */
  --gold: #b07a10;
  --neg: #c22f4e;           /* semantic negative — declines, gaps, missing */
  --serif: "et-book", "Noto Serif SC", "Iowan Old Style", Palatino, Georgia, "Songti SC", "STSong", "Source Han Serif SC", "SimSun", serif;
  --sans: "et-book", "Noto Serif SC", "Iowan Old Style", Palatino, Georgia, "Songti SC", "STSong", "Source Han Serif SC", "SimSun", serif;
  --mono: "Noto Sans SC", Menlo, Consolas, "SF Mono", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", monospace;
  --shadow: 0 1px 2px rgba(5,28,44,.05), 0 8px 28px rgba(5,28,44,.07);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  --railw: 460px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}
::selection { background: rgba(34,81,255,.15); }
b, strong { font-weight: 700; }
em { font-style: italic; }
a { color: var(--blue); }

/* ── Era progress rail (top) ── */
#era-rail {
  position: fixed; top: 0; left: 0; right: 0; z-index: 90;
  display: flex; align-items: center; gap: 14px;
  padding: 10px 22px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  pointer-events: none;
  opacity: 0; transform: translateY(-8px); transition: opacity .4s, transform .4s;
}
#era-rail.on { opacity: 1; transform: none; }
.rail-year {
  font-family: var(--mono); font-weight: 700; font-size: 14px;
  border: 1.5px solid var(--ink); border-radius: 4px;
  padding: 2px 10px; background: var(--paper);
  font-variant-numeric: tabular-nums;
}
.rail-track { flex: 1; height: 18px; position: relative; }
.rail-track .seg {
  position: absolute; top: 8px; height: 2px; background: var(--line);
  pointer-events: auto; cursor: pointer;
}
.rail-track .seg.active { background: var(--red); height: 4px; top: 7px; }
.rail-track .seg .seg-label {
  position: absolute; top: -14px; left: 0; font-family: var(--mono);
  font-size: 9px; color: var(--ink-md); white-space: nowrap; letter-spacing: .04em;
}
.rail-track .seg.active .seg-label { color: var(--red); font-weight: 700; }

/* ── Cover ── */
#cover { position: relative; min-height: 100vh; overflow: hidden; }
#cover-canvas-r, #cover-canvas-x, #cover-canvas-w { position: absolute; inset: 0; width: 100%; height: 100%; }
.cover-inner {
  position: relative; z-index: 2; max-width: 1120px;
  margin: 0 auto; padding: 11vh 24px 60px;
}
.cover-kicker {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .18em;
  color: var(--red); margin-bottom: 26px; text-transform: uppercase;
}
.cover-title {
  font-size: clamp(44px, 6.6vw, 78px); font-weight: 700;
  line-height: 1.08; letter-spacing: -0.01em;
}
.cover-title .cover-num { color: var(--red); }
.cover-sub {
  font-size: clamp(18px, 2.2vw, 26px); font-weight: 700; color: var(--ink-md);
  margin: 20px 0 26px; letter-spacing: 0;
}
.cover-lede { max-width: 620px; font-size: 16.5px; color: var(--ink-md); line-height: 1.75; }
.chain {
  font-family: var(--mono); font-size: 13.5px; font-weight: 700; color: var(--ink);
  background: var(--paper-hi); border: 1px solid var(--line); border-radius: 4px;
  padding: 1px 8px; white-space: nowrap;
}
.cover-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 30px 0 26px; }
.chip {
  font-family: var(--sans); font-size: 12.5px; font-weight: 700;
  color: var(--ink); background: var(--paper);
  border: 1.5px solid var(--ink); border-radius: 6px; padding: 7px 13px; cursor: pointer;
  transition: all .15s;
  min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
}
.chip:hover { background: var(--red); border-color: var(--red); color: #fff; }
.cover-anchor { font-size: 12.5px; color: var(--ink-md); font-family: var(--mono); letter-spacing: .01em; }
.scroll-hint {
  margin-top: 7vh; font-family: var(--mono); font-size: 11px; color: var(--ink-md);
  display: flex; flex-direction: column; align-items: center; gap: 8px; letter-spacing: .3em;
}
.scroll-hint span {
  display: block; width: 1px; height: 44px;
  background: linear-gradient(var(--red), transparent);
  animation: drip 1.8s ease-in-out infinite;
}
@keyframes drip { 0% {transform: scaleY(0); transform-origin: top} 50% {transform: scaleY(1); transform-origin: top} 51% {transform-origin: bottom} 100% {transform: scaleY(0); transform-origin: bottom} }

/* ── Section band ── */
.band { padding: 48px 0 56px; border-top: 1px solid var(--line-lo); }
.prose {
  max-width: 692px;
  margin: 0 auto;
  padding: 0 24px;
}
.wide {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}
.wide.xl { max-width: 924px; }
.sec-no {
  font-family: var(--mono); font-size: 11px; letter-spacing: .26em;
  color: var(--red); margin-bottom: 14px; text-transform: uppercase;
  display: flex; align-items: center; gap: 10px;
}
.sec-no::before {
  content: ""; flex: 0 0 26px; height: 3px;
  background: var(--red);
}
h2 { font-family: var(--sans); font-size: clamp(26px, 3.2vw, 36px); font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; margin-bottom: 20px; }
h3 { font-family: var(--sans); font-size: 21px; font-weight: 700; line-height: 1.4; letter-spacing: -0.01em; margin-bottom: 14px; }
.sub-h { margin-top: 26px; }
.prose p { margin-bottom: 15px; }
.muted { color: var(--ink-md); font-size: 14px; }
.hint-click { font-size: 13px; color: var(--blue); border-bottom: 1px dashed var(--blue); white-space: nowrap; position: relative; display: inline-block; }
.hint-click::after { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 44px; transform: translateY(-50%); }
.era-tag {
  display: block; font-family: var(--mono); font-size: 11px; letter-spacing: .18em;
  color: var(--red); margin-bottom: 8px; font-weight: 400; text-transform: uppercase;
  padding-left: 14px; position: relative;
}
.era-tag::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 6px; height: 6px; background: var(--red);
}
.laws { list-style: none; margin: 8px 0 16px; }
.laws li {
  padding: 11px 0 11px 18px; border-left: 3px solid var(--red);
  margin-bottom: 12px; background: linear-gradient(to right, rgba(34,81,255,.04), transparent 70%);
}
/* ── Analyst note · editorial (hairlines, no fill, no left bar) ── */
.note-box {
  border: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: transparent;
  padding: 12px 0 13px; margin: 18px 0; font-size: 13.5px; color: var(--ink-md); line-height: 1.8;
  box-shadow: none;
}
.note-box::before {
  content: "Analyst note"; display: block;
  font-family: var(--mono); font-size: 9.5px; letter-spacing: .24em; text-transform: uppercase;
  color: var(--ink-md); margin-bottom: 8px;
}
.note-box p { margin-bottom: 10px; }
.note-box p:last-child { margin-bottom: 0; }
.degrade-note {
  font-family: var(--mono); font-size: 12px; color: var(--neg);
  border: 1px dashed var(--neg); border-radius: 4px; padding: 8px 12px; background: rgba(194,47,78,.04);
}

/* Chart containers */
.chart-frame {
  background: transparent; border: 0; box-shadow: none;
  padding: 8px 0 4px; position: relative;
}
.chart-title { font-weight: 700; font-size: 17.5px; letter-spacing: -0.01em; margin: 0 0 3px 0; }
.chart-sub { font-family: var(--mono); font-size: 10.5px; color: var(--ink-md); margin: 0 0 14px 0; letter-spacing: .06em; text-transform: uppercase; padding-bottom: 8px; border-bottom: 1px solid var(--line-lo); }
.chart-src { font-family: var(--mono); font-size: 10px; color: var(--ink-md); margin: 10px 0 4px; }
.chart-foot { font-family: var(--mono); font-size: 9.5px; color: var(--ink-md); margin: 10px 0 0; letter-spacing: .01em; }
.chart-frame svg text { font-family: var(--mono); }

/* metric strip */
.metric-strip {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0; background: transparent; border: 0; border-radius: 0; overflow: hidden;
  margin-top: 14px; box-shadow: none;
}
.metric-strip .m {
  background: var(--paper); padding: 12px 16px 12px 0; margin-right: 16px;
  border-top: 1px solid var(--line); cursor: pointer; transition: background .15s;
}
.metric-strip .m:hover { background: var(--paper-hi); }
.metric-strip .m .v { font-family: var(--mono); font-size: 20px; font-weight: 700; color: var(--red); font-variant-numeric: tabular-nums; }
.metric-strip .m .k { font-size: 12px; color: var(--ink-md); margin-top: 3px; line-height: 1.5; }

/* source button：空心菱形，悬停旋转填充 */
.src {
  border: 0; background: none; cursor: pointer; color: transparent;
  width: 15px; height: 13px; vertical-align: super; padding: 0 1px;
  font-size: 0; position: relative; display: inline-block;
}
.src::before {
  content: ""; position: absolute; left: 50%; top: 46%;
  width: 6px; height: 6px; border: 1.4px solid var(--red);
  transform: translate(-50%, -50%) rotate(45deg);
  transition: transform .28s cubic-bezier(.22,.61,.36,1), background .28s;
}
.src:hover::before {
  background: var(--red);
  transform: translate(-50%, -50%) rotate(225deg) scale(1.12);
}

/* ── Chronicle sticky layout ── */
#chronicle { position: relative; border-top: 1px solid var(--line-lo); }
.chron-grid {
  display: grid; grid-template-columns: minmax(380px, 44%) 1fr;
  max-width: 1440px; margin: 0 auto; gap: 0;
}
.chron-text { padding: 40px 20px 40px 40px; }
.step { min-height: 80vh; display: flex; flex-direction: column; justify-content: center; padding: 44px 24px 44px 0; max-width: 620px; }
.step.active-step h3 { color: var(--ink); }
.chron-dash { position: relative; }
.dash-inner {
  position: sticky; top: 0; height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 40px 28px;
}
#dash-canvas {
  width: 100%; height: 100%;
  background: var(--paper); cursor: crosshair;
}
/* rail canvas: no max-height/border/shadow/radius (permanent bottom gap) */
#dash-rail #dash-canvas {
  max-height: none; border: 0; border-radius: 0; box-shadow: none;
}

/* Chronicle inline mini-charts */
.inline-chart {
  margin: 20px 0; background: var(--paper); border: 1px solid var(--line); border-radius: 8px;
  box-shadow: var(--shadow); padding: 14px 12px 8px;
}
.inline-chart svg text { font-family: var(--mono); }
.inline-chart .ic-title { font-weight: 700; font-size: 13.5px; margin: 0 0 2px 4px; font-family: var(--sans); }
.inline-chart .ic-src { font-family: var(--mono); font-size: 9.5px; color: var(--ink-md); margin: 6px 4px 2px; }

/* ── Pull-quote · FROM THE RECORD (editorial register) ── */
.quote-card {
  margin: 34px 0 30px; position: relative;
  background: transparent;
  border: 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line);
  border-radius: 0;
  box-shadow: none;
  padding: 13px 0 16px;
  transform: none;
}
.quote-card::before {
  content: "原文照录"; display: block;
  font-family: var(--mono); font-size: 9.5px; letter-spacing: .24em;
  color: var(--ink-md); margin-bottom: 12px;
}
.quote-card:nth-of-type(even) { transform: none; }
.quote-card .q-mark { display: none; }
.quote-card .q-badges { display: none; }           /* tier/vintage tags removed by request */
.quote-card .q-zh {                              /* 中文版:英文原句下挂译文行 */
  font-size: 14.5px; font-style: normal;
  font-family: var(--serif); color: var(--ink-md);
  line-height: 1.6; margin: -6px 0 10px;
}
.quote-card .q-text {
  font-size: 22px; font-style: italic;
  font-family: var(--serif); color: var(--ink);
  line-height: 1.5; margin-bottom: 12px; letter-spacing: 0;
}
.quote-card .q-who {
  font-family: var(--serif); font-size: 13px; color: var(--ink-md);
  font-variant-caps: small-caps; letter-spacing: .06em;
}
.quote-card .q-who b { color: var(--ink); font-weight: 700; }
.quote-card .q-why {
  margin-top: 14px; padding-top: 12px; border-top: 1px dotted var(--line);
  font-size: 13px; color: var(--ink-md); line-height: 1.7; display: block;
}
.quote-card .q-lab {
  font-family: var(--mono); font-size: 9.5px; color: var(--ink-md);
  margin-right: 6px; letter-spacing: .12em; text-transform: uppercase;
}
.quote-card .q-lab.why { color: var(--ink-md); }
.quote-card .q-wline { display: block; }
.quote-card .q-wline + .q-wline { margin-top: 6px; }
.quote-card .q-src { font-family: var(--sans); font-size: 10px; color: var(--blue); margin-left: 8px; }

/* signal grid — container for the §10 register (bullets styled in signals.js) */
.signal-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 28px; }

/* now grid — headline stats, fixed three columns */
.now-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 28px; }
.now-card { background: transparent; border: 0; border-top: 2px solid var(--ink); padding: 12px 4px; cursor: pointer; }
.now-card .n-v { font-family: var(--mono); font-size: 28px; font-weight: 700; font-variant-numeric: tabular-nums; }
.now-card .n-v small { font-size: 14px; }
.now-card .n-k { font-size: 13px; color: var(--ink-md); margin-top: 4px; line-height: 1.55; }
.now-card .n-src { font-family: var(--mono); font-size: 9.5px; color: var(--ink-md); margin-top: 8px; }

/* interlude side-by-side charts */
.duo-charts { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
@media (max-width: 1100px) { .duo-charts { grid-template-columns: 1fr; } }

/* drill card */
#drill-card {
  position: fixed; z-index: 200; min-width: 240px; max-width: 340px;
  background: var(--ink); color: #eef2f6; padding: 14px 18px; border-radius: 6px;
  box-shadow: 0 12px 40px rgba(5,28,44,.4); font-size: 13px; line-height: 1.65;
  border-top: 3px solid var(--red);
}
#drill-card .d-title { font-size: 15px; font-weight: 700; color: #fff; letter-spacing: -0.01em; line-height: 1.35; }
#drill-card .d-val { font-size: 24px; font-weight: 700; color: #fff; margin: 2px 0; font-variant-numeric: tabular-nums; }
#drill-card .d-val.prose { font-size: 14.5px; font-weight: 400; line-height: 1.62; color: #eef2f6; }
#drill-card .d-val .pos { color: #6fd0b2; } #drill-card .d-val .neg { color: #ef9aae; }
#drill-card .d-sub { color: #c6d1db; font-size: 12.5px; }
#drill-card .d-src { font-family: var(--sans); font-size: 10px; color: #8595a6; margin-top: 8px; padding-top: 8px; border-top: 1px solid rgba(255,255,255,.14); }
#drill-card .d-close { position: absolute; top: 6px; right: 10px; color: #8595a6; cursor: pointer; background: none; border: 0; font-size: 14px; }

/* appendix */
#sec-sources { padding: 100px 0 80px; border-top: 1px solid var(--line-lo); }
#sec-sources .prose { max-width: 960px; }
.colophon { margin-top: 40px; font-family: var(--mono); font-size: 10.5px; color: var(--ink-md); line-height: 2; }

/* source-category badge (four-source rule) */
.src-cat {
  display: inline-block; font-family: var(--mono); font-size: 9px;
  letter-spacing: .08em; text-transform: uppercase;
  border: 1px solid var(--line); border-radius: 3px;
  padding: 0 5px; margin-right: 6px; color: var(--ink-md); vertical-align: 1px;
}
.src-cat.derived { border-color: var(--red); color: var(--red); }
.src-cat.broker { border-color: var(--copper); color: var(--copper); }
.src-cat.company { border-color: var(--green); color: var(--green); }
.src-cat.industry { border-color: var(--violet); color: var(--violet); }

/* data tables (penetration matrix, lineage) */
table.dt {
  border-collapse: collapse; width: 100%;
  font-family: var(--sans); font-size: 13px; line-height: 1.55;
}
table.dt th {
  font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink-md); text-align: left; padding: 7px 12px 7px 0;
  border-bottom: 1.5px solid var(--ink); white-space: nowrap;
}
table.dt td { padding: 8px 12px 8px 0; border-bottom: 1px solid var(--line-lo); vertical-align: top; }
table.dt td.num { font-family: var(--mono); font-size: 12px; font-variant-numeric: tabular-nums; white-space: nowrap; }
table.dt tr:hover td { background: var(--paper-hi); }
table.dt tr.hl td { background: rgba(34,81,255,.05); }

/* corporate lineage cards (replaces pixel stamp wall) */
.lineage-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(215px, 1fr)); gap: 12px; }
.lin-card {
  border: 1px solid var(--line); border-left: 3px solid var(--brand, var(--ink));
  border-radius: 0; background: var(--paper);
  padding: 13px 15px 11px; cursor: pointer;
  transition: background .15s;
}
.lin-card:hover { background: var(--paper-hi); }
.lin-card .l-name { font-weight: 700; font-size: 15px; letter-spacing: -0.01em; }
.lin-card .l-role { font-size: 11.5px; color: var(--ink-md); margin-top: 2px; line-height: 1.5; min-height: 34px; }
.lin-card .l-stat { font-family: var(--mono); font-size: 11px; color: var(--ink); margin-top: 8px; border-top: 1px dashed var(--line-lo); padding-top: 7px; font-variant-numeric: tabular-nums; }
.lin-card .l-fate {
  display: inline-block; font-family: var(--mono); font-size: 9px; letter-spacing: .08em;
  border: 1px solid var(--line); border-radius: 999px; padding: 1px 8px; margin-top: 7px;
  color: var(--ink-md); text-transform: uppercase;
}
.lin-card .l-fate.acq { border-color: var(--blue); color: var(--blue); }
.lin-card .l-fate.dead { border-color: var(--neg); color: var(--neg); }
.lin-card .l-fate.ipo { border-color: var(--ink-lo); color: var(--ink-md); }
.lin-group-head {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-md); border-bottom: 1.5px solid var(--ink);
  padding-bottom: 6px; margin: 26px 0 12px; display: flex; justify-content: space-between;
}

/* tooltip */
.tip {
  position: fixed; z-index: 150; pointer-events: none;
  background: var(--ink); color: #fff; font-family: var(--mono); font-size: 11px;
  padding: 5px 10px; border-radius: 4px; opacity: 0; transition: opacity .12s; white-space: nowrap;
}

@media (max-width: 980px) {
  .chron-grid { grid-template-columns: 1fr; }
  .chron-dash { display: none; }
  .step { min-height: 0; }
}

/* fixed-column grids collapse to a single column below 860px */
@media (max-width: 860px) {
  .signal-grid, .now-grid, .metric-strip { grid-template-columns: 1fr; }
}

/* ── Narrative column yields to right rail (footer lives inside main; no double margin) ── */
main { margin-right: var(--railw); }
#era-rail { right: var(--railw); }

/* ── Persistent dashboard rail ── */
#dash-rail {
  position: fixed; top: 0; right: 0; bottom: 0; width: var(--railw);
  border: 0;
  background: var(--paper);
  z-index: 60;
  /* hidden on the cover screen; scroll-linked gradual reveal (main.js drives opacity/transform per frame) */
  opacity: 0; visibility: hidden; transform: translateX(18px); pointer-events: none;
  will-change: opacity, transform;
}
#dash-rail canvas { width: 100%; height: 100%; display: block; cursor: crosshair; }

/* ── dek · italic serif, no rule, no fill ── */
.dek {
  font-style: italic; font-size: 18px; line-height: 1.65; color: var(--ink-md);
  margin: -4px 0 24px; max-width: 640px;
  border: 0; padding: 0;
}
/* 中文裁决行（.dek）用语言属性区分样式，不依赖 <strong> 这类会改变字重的标签：
   中文态直立 + 深墨色，英文态（data-en 切换后）保持斜体衬线灰。 */
html[lang="zh-CN"] .dek { font-style: normal; color: var(--ink); }

/* chronicle single-column */
.chron-text { max-width: 760px; margin-left: max(calc((100vw - var(--railw) - 900px) / 2), 28px); padding: 40px 24px; }
.step { min-height: 78vh; }

@media (max-width: 1180px) {
  body { --railw: 0px; }
  #dash-rail { display: none; }
}

/* section hairline */
hr.sep {
  border: 0; height: 1px; background: var(--line);
  margin: 0 auto;
  max-width: 692px;
}

/* ── Cover: three-edition switch pill (triple cover engine) ── */
.cover-mode-note {
  margin-top: 22px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-md);
}
.cover-mode-k { margin-right: 4px; }
.cover-mode button {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-md); background: rgba(255,255,255,.82);
  border: 1px solid transparent; border-radius: 999px; padding: 4px 12px; cursor: pointer;
  transition: all .15s;
  min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
}
.cover-mode button:hover { color: var(--blue); border-color: var(--line); }
.cover-mode button.on { color: var(--blue); border-color: var(--blue); background: var(--paper); }

/* ═══════════════════════════════════════════════════════════
   v7 batchB — now-grid 标题框与格栅（js/charts/now.js）
   ═══════════════════════════════════════════════════════════ */
.now-head { grid-column: 1 / -1; margin: 0 0 10px; }
.now-head .nw-kick {
  font-family: var(--mono); font-size: 10px; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase; color: var(--blue);
  margin: 0 0 5px;
}
.now-head .nw-title {
  font-family: var(--serif); font-weight: 700; font-size: 19px;
  letter-spacing: -0.01em; margin: 0 0 4px;
}
.now-head .nw-sub {
  font-family: var(--mono); font-size: 10px; color: var(--ink-md);
  letter-spacing: .06em; text-transform: uppercase;
  margin: 0 0 2px; padding-bottom: 10px; border-bottom: 1px solid var(--line-lo);
}
.now-card { border-bottom: 1px solid var(--line); padding: 14px 4px; transition: background .15s; }
.now-card:hover { background: var(--paper-hi); }
.now-card .n-k { color: var(--ink); }
.now-card .n-v small { font-variant-caps: small-caps; }

/* ═══ 防水修缮报告增补 ═══ */
#lang-toggle {
  position: fixed; top: 14px; right: 16px; z-index: 90;
  font-family: var(--mono); font-size: 11px; letter-spacing: .12em;
  color: var(--ink-md); background: rgba(255,255,255,.88);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 14px; cursor: pointer; backdrop-filter: blur(6px);
  transition: all .15s;
  min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
}
#lang-toggle:hover { color: var(--blue); border-color: var(--blue); }

/* 裁决大数字格（#now-grid） */
.now-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 24px; padding: 8px 0 4px; }
.now-grid .n-cell { padding: 16px 4px; border-top: 2px solid var(--ink); }
.now-grid .n-cell:hover .n-v { color: var(--blue); }
.now-grid .n-v { font-family: var(--mono); font-size: 30px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--ink); transition: color .2s; }
.now-grid .n-k { font-size: 12.5px; color: var(--ink-md); margin-top: 6px; line-height: 1.55; }
@media (max-width: 900px) { .now-grid { grid-template-columns: repeat(2, 1fr); } }

/* 下钻卡多行文本 */
#drill-card .d-val.prose { white-space: pre-line; }

/* 口径说明：小字灰注（v2 合并稿的行内 caveat） */
.fine-note {
  font-size: 13px; line-height: 1.7; color: var(--ink-md);
  border-left: 2px solid var(--line); padding-left: 12px;
  margin: 18px 0;
}
.fine-note b { color: var(--ink-md); }

/* ── scroll reveal（模板式错峰渐显）── */
.rv { opacity: 0; transform: translateY(14px); transition: opacity .55s cubic-bezier(.22,.61,.36,1), transform .55s cubic-bezier(.22,.61,.36,1); }
.rv.on { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { transition: none; opacity: 1; transform: none; } }

/* ── 图标动画：描边生长 + 悬停微动 ── */
.flow-step svg * { stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset .8s cubic-bezier(.22,.61,.36,1); }
.flow-step.on svg *, .flow-step:not(.rv) svg * { stroke-dashoffset: 0; }
.flow-step:hover svg { transform: translateY(-2px) scale(1.08); }
.flow-step svg { transition: transform .25s cubic-bezier(.22,.61,.36,1); }
@media (prefers-reduced-motion: reduce) { .flow-step svg * { transition: none; stroke-dashoffset: 0; } }

@keyframes flowArrow { 0%, 100% { transform: translateX(0); opacity: .55; } 50% { transform: translateX(3px); opacity: 1; } }
.flow-arrow { animation: flowArrow 1.8s ease-in-out infinite; display: inline-block; }
@media (prefers-reduced-motion: reduce) { .flow-arrow { animation: none; } }

/* ── 七态流程：巡回脉冲 + 进度束 ── */
.flow-step { transition: background .35s cubic-bezier(.22,.61,.36,1), border-color .35s cubic-bezier(.22,.61,.36,1), transform .35s cubic-bezier(.22,.61,.36,1), box-shadow .35s cubic-bezier(.22,.61,.36,1); }
.flow-step.flow-hot { border-color: var(--blue); background: #eef3ff !important; transform: translateY(-3px); box-shadow: 0 6px 16px rgba(34,81,255,.14); }
.flow-step.flow-hot .f-num { color: var(--blue); }
.flow-step.flow-hot svg { transform: scale(1.14); }
.flow-beam { height: 2px; background: var(--line-lo); border-radius: 2px; margin: 12px 6px 0; overflow: hidden; }
.flow-beam i { display: block; height: 100%; width: 0; background: var(--blue); transition: width .5s cubic-bezier(.22,.61,.36,1); }
@media (prefers-reduced-motion: reduce) { .flow-step, .flow-beam i { transition: none; } }

@keyframes srcBreathe { 0%, 100% { transform: translate(-50%, -50%) rotate(45deg) scale(1); } 50% { transform: translate(-50%, -50%) rotate(45deg) scale(1.22); } }
.src::before { animation: srcBreathe 2.8s ease-in-out infinite; }
.src:hover::before { animation: none; }
@media (prefers-reduced-motion: reduce) { .src::before { animation: none; } }

/* ── 统计/步骤卡：悬停反馈 ── */
.stat-box { transition: background .18s, border-color .18s, transform .18s, box-shadow .18s; }
.stat-box:hover { background: #fff !important; border-color: var(--blue) !important; transform: translateY(-2px); box-shadow: 0 6px 18px rgba(5,28,44,.07); }

/* ── 缺口登记表 ── */
table.gap-tbl { width: 100%; border-collapse: collapse; margin: 14px 0 6px; }
table.gap-tbl th { font: 600 10.5px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-md); text-align: left; padding: 8px 14px 8px 0; border-bottom: 1.5px solid var(--ink); }
table.gap-tbl td { padding: 10px 14px 10px 0; border-bottom: 1px solid var(--line-lo); vertical-align: top; font-size: 13px; line-height: 1.65; color: var(--ink-md); }
table.gap-tbl td.no { font-family: var(--mono); font-size: 12px; color: var(--blue); white-space: nowrap; font-weight: 700; }
table.gap-tbl td.gap { color: var(--ink); font-weight: 600; width: 46%; }
table.gap-tbl tr { transition: background .15s; }
table.gap-tbl tbody tr:hover td { background: var(--paper-hi, #f7f9fc); }

/* ── 移动端（≤640px）板式优化 ── */
@media (max-width: 640px) {
  .band { padding: 36px 0 40px; }
  .prose { padding: 0 18px; }
  h2 { font-size: clamp(24px, 7vw, 30px); margin-bottom: 16px; }
  .dek { font-size: 15.5px; line-height: 1.6; margin-bottom: 18px; }
  .prose p { font-size: 15px; }
  .fine-note { font-size: 12px; padding-left: 10px; margin: 14px 0; }
  .cover-inner { padding: 0 20px; }
  .cover-lede { font-size: 14.5px; }
  .cover-chips { gap: 8px; }
  .cover-chips .chip { font-size: 12px; padding: 6px 10px; }
  .quote-card { margin: 24px 0 22px; }
  .quote-card .q-text { font-size: 17px; }
  .note-box { padding: 14px 14px 14px 16px; }
  .chart-frame { margin: 18px 0; }
  .wide, .wide.xl { padding: 0 12px; }
  /* 缺口登记表窄屏可横向滑动 */
  #gap-table { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  table.gap-tbl { min-width: 480px; }
  /* 压力测试答案区缩进收窄 */
  #stress-list .sa { padding-left: 16px !important; }
  /* 七态流程卡片在窄屏占满整行，箭头隐藏 */
  #flow-chart .flow-step { flex: 1 1 100% !important; }
  /* 大数字区两列即可 */
  .now-grid { grid-template-columns: repeat(2, 1fr) !important; }
}

/* 封面蓝图在窄屏淡化，避免压住文字；蓝色副题缩小防断行 */
.cover-title .cover-num { font-size: .8em; }
@media (max-width: 640px) {
  #cover-canvas-r, #cover-canvas-x, #cover-canvas-w { opacity: .10; }
  .cover-inner { padding-top: 8vh; }
}

/* ── 封面三态切换（模板同款胶囊按钮）── */
.cover-mode {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
  margin-top: 22px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-md);
}
.cover-mode-k { margin-right: 4px; }
.cover-mode button {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-md); background: rgba(255,255,255,.82);
  border: 1px solid transparent; border-radius: 999px; padding: 4px 12px; cursor: pointer;
  transition: all .15s;
  min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
}
.cover-mode button:hover { color: var(--blue); border-color: var(--line); }
.cover-mode button.on { color: var(--blue); border-color: var(--blue); background: var(--paper); }




/* ── QR Code Section (horizontal, with divider) ── */
.qrcode-section {
  padding: 40px 0 20px;
  border-top: 1px solid var(--line-lo);
  background: var(--bg);
}
.qrcode-inner {
  max-width: 692px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 20px;
}
.qrcode-img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  border-radius: 10px;
  background: #fff;
  padding: 8px;
  box-shadow: 0 2px 12px rgba(5,28,44,.08);
  flex-shrink: 0;
}
.qrcode-text {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 4px;
}
.qrcode-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--ink-md);
  margin: 0;
}
.qrcode-name {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--red);
  letter-spacing: .06em;
  margin: 0;
}
.qrcode-hint {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--ink-md);
  margin: 0;
}
.colophon-bottom {
  max-width: 692px;
  margin: 24px auto 12px;
  padding: 0 24px;
  text-align: center;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .08em;
  color: var(--ink-md);
}

/* ── 手机端小字上调（≤640px）─────────────────────────────────────────
   原 10–12px 的等宽小字在手机上偏小：图源标注、滚动提示、语言切换、章节芯片、页脚行。 */
@media (max-width: 640px) {
  .chart-src { font-size: 12.5px; }
  .scroll-hint { font-size: 12.5px; }
  #lang-toggle { font-size: 12.5px; }
  .cover-chips .chip { font-size: 13px; }
  .colophon-bottom { font-size: 12px; }
  .footer-line, .disclaimer, .src-list li { font-size: 12.5px; }
  .metric-strip .m .k, .now-card .n-k { font-size: 14px; }
}

/* English edition: hide the Chinese original quote line */
html[lang="en"] .q-zh{display:none}

/* ═══════════════════════════════════════════════════════════
   v14 手机端专项优化（≤960px）
   1) 语言切换按钮原为 fixed top:14 right:16，实测在 390px 下压住正文列右缘
      约 38px——一滚到正文就遮字。改为：贴边收窄 + 下滑收起、上滑回位。
   2) 被官网整页嵌入时（html.zx-embedded，由外层 index.html 注入）：外层页面
      负责滚动，报告侧必须交出视口高度语义，否则 100vh / 11vh 会随 iframe
      高度被反推着无限自增；封面按内容高度呈现，按钮改随文档一起滚动。
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 960px){
  #lang-toggle { top: 10px; right: 10px; padding: 6px 12px; font-size: 12.5px; }
  #lang-toggle.hide { opacity: 0; transform: translateY(-8px); pointer-events: none; }
  /* 行内「◆」来源按钮本体只有 15×13px，手机上基本点不中；
     用透明热区把可点范围放大（不改变行内占位，避免撑高行距）。 */
  .src::after { content:""; position:absolute; left:50%; top:46%; width:40px; height:40px; transform:translate(-50%,-50%); }
}
/* 手机端小字上调：封面注脚、三态胶囊、二维码说明原为 10.5–11.5px，手机上偏小；
   引文标签在页内样式里是 .quote-card .q-lab，须用同等特异性才盖得住。 */
@media (max-width: 640px){
  .cover-kicker { font-size: 12.5px; }
  .cover-mode-k, .cover-mode button, .cover-mode-note { font-size: 12px; }
  .qrcode-label, .qrcode-hint { font-size: 12.5px; }
  .quote-card .q-lab { font-size: 12px; }
}
html.zx-embedded #cover { min-height: 0; }
html.zx-embedded .cover-inner { padding: 56px 24px 48px; }
html.zx-embedded .scroll-hint { margin-top: 24px; }
html.zx-embedded .step { min-height: 0; }
html.zx-embedded #lang-toggle { position: absolute; top: 14px; right: 16px; transform: none; opacity: 1; }