/* ==========================================================================
   178体育看台 · 共享外壳样式  /assets/site.css
   ========================================================================== */

/* ---------- 01 Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd,
ul, ol, address, fieldset, legend { margin: 0; }

ul[class],
ol[class] { list-style: none; padding: 0; }

img, svg, video, canvas { display: block; max-width: 100%; }

button, input, select, textarea { font: inherit; color: inherit; }

button { background: none; border: 0; }

table { border-collapse: collapse; }

a { color: inherit; text-decoration: none; }

/* ---------- 02 Tokens ---------- */
:root {
  --pitch: #0B2A22;
  --pitch-deep: #061A14;
  --paper: #F3E9D6;
  --paper-dim: #E0D2B4;
  --neon: #CBF24C;
  --brick: #C0452B;
  --cold: #F6F8F4;
  --ink: #10130F;
  --steel: #4E635B;
  --teal: #4FBFA8;

  --line-cold: rgba(246, 248, 244, 0.16);
  --line-cold-strong: rgba(246, 248, 244, 0.40);
  --line-ink: rgba(16, 19, 15, 0.18);
  --cold-70: rgba(246, 248, 244, 0.72);
  --cold-52: rgba(246, 248, 244, 0.55);
  --neon-40: rgba(203, 242, 76, 0.40);
  --brick-45: rgba(192, 69, 43, 0.45);

  --font-display: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC",
    "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC",
    "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", "IBM Plex Mono", SFMono-Regular,
    Menlo, Consolas, monospace;

  --bw: 3px;
  --shadow-hard: 8px 8px 0 var(--pitch-deep);
  --shadow-hard-brick: 8px 8px 0 var(--brick);
  --shadow-hard-neon: 8px 8px 0 var(--neon);

  --wrap: 1280px;
  --pad: clamp(16px, 4vw, 44px);

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 0.18s;
}

/* ---------- 03 Base ---------- */
body {
  background-color: var(--pitch);
  color: var(--cold);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

strong, b { font-weight: 700; }

code, kbd, samp, time { font-family: var(--font-mono); }

::selection {
  background-color: var(--neon);
  color: var(--ink);
}

:focus-visible {
  outline: 3px solid var(--neon);
  outline-offset: 3px;
}

.section--paper :focus-visible,
.panel--paper :focus-visible,
.card--paper :focus-visible,
.media-frame--paper :focus-visible {
  outline-color: var(--brick);
}

/* ---------- 04 Layout ---------- */
.container {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section {
  position: relative;
  padding-block: clamp(56px, 9vw, 120px);
}

.section--tight { padding-block: clamp(34px, 5vw, 64px); }
.section--paper { background-color: var(--paper); color: var(--ink); }
.section--deep { background-color: var(--pitch-deep); }

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 32px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--5-7 { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.grid--7-5 { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.grid--sidebar { grid-template-columns: minmax(0, 250px) minmax(0, 1fr); }

/* ---------- 05 Skip link ---------- */
.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 500;
  transform: translateY(-130%);
  background-color: var(--neon);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 12px 22px;
  border: var(--bw) solid var(--ink);
  transition: transform var(--dur) var(--ease);
}

.skip-link:focus { transform: translateY(0); }

/* ---------- 06 Header ---------- */
.site-header {
  position: relative;
  z-index: 100;
  background-color: var(--pitch);
}

.header-top {
  background-color: var(--pitch-deep);
  border-bottom: 1px solid var(--line-cold);
}

.header-top__inner {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 34px);
  min-height: 72px;
}

/* Brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background-color: var(--neon);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.05em;
  box-shadow: 3px 3px 0 var(--brick);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.brand:hover .brand-mark {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--brick);
}

.brand-text { display: grid; gap: 2px; }

.brand-name {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--cold);
  line-height: 1.2;
}

.brand-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--cold-52);
  line-height: 1.2;
}

/* Ticker */
.ticker {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 34px, #000 calc(100% - 34px), transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 34px, #000 calc(100% - 34px), transparent 100%);
}

.ticker-track {
  display: inline-flex;
  align-items: center;
  gap: 44px;
  padding-left: 10px;
  white-space: nowrap;
  animation: ticker-scroll 36s linear infinite;
}

.ticker-item {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cold-70);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.ticker-item::before {
  content: "";
  width: 7px;
  height: 7px;
  background-color: var(--neon);
  flex: none;
}

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
  margin-left: auto;
}

.header-hours {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--cold-52);
  white-space: nowrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
  padding: 11px 18px;
  border: var(--bw) solid transparent;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.btn--neon {
  background-color: var(--neon);
  color: var(--ink);
  border-color: var(--neon);
}

.btn--neon:hover {
  background-color: var(--cold);
  border-color: var(--cold);
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--brick);
}

.btn--paper {
  background-color: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.btn--paper:hover {
  background-color: var(--brick);
  border-color: var(--brick);
  color: var(--cold);
}

.btn--outline {
  background-color: transparent;
  color: var(--cold);
  border-color: var(--cold);
}

.btn--outline:hover {
  background-color: var(--cold);
  color: var(--ink);
}

.btn--brick {
  background-color: var(--brick);
  color: var(--cold);
  border-color: var(--brick);
}

.btn--brick:hover {
  background-color: var(--ink);
  border-color: var(--ink);
}

.btn--sm { padding: 8px 14px; font-size: 13px; }
.btn--block { width: 100%; }

/* Nav toggle */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  background-color: transparent;
  border: 2px solid var(--cold);
  color: var(--cold);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 9px 13px;
  cursor: pointer;
  position: relative;
  z-index: 130;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.nav-toggle:hover { background-color: var(--cold); color: var(--ink); }

.nav-toggle-bars { display: grid; gap: 3px; width: 17px; }

.nav-toggle-bars i {
  display: block;
  height: 2px;
  background-color: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle[data-open] .nav-toggle-bars i:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[data-open] .nav-toggle-bars i:nth-child(2) { opacity: 0; }
.nav-toggle[data-open] .nav-toggle-bars i:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* Primary nav */
.header-nav {
  background-color: var(--pitch);
  border-bottom: 1px solid var(--line-cold);
}

.header-nav .container {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(10px, 2.6vw, 36px);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  position: relative;
  display: block;
  padding: 16px 0 13px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--cold-70);
  border-bottom: 3px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.nav-link:hover { color: var(--cold); }

.nav-link[aria-current="page"] {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* Scroll progress */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background-color: var(--neon);
  transform: scaleX(var(--progress, 0));
  transform-origin: 0 50%;
  z-index: 400;
  pointer-events: none;
}

/* ---------- 07 Footer ---------- */
.site-footer {
  background-color: var(--pitch-deep);
  color: var(--cold);
  border-top: var(--bw) solid var(--neon);
}

.footer-strip {
  background-color: var(--pitch);
  border-bottom: 1px solid var(--line-cold);
}

.footer-strip__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(18px, 4vw, 54px);
  padding-block: 15px;
}

.footer-strip__item {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cold-70);
}

.footer-strip__item::before {
  content: "";
  width: 7px;
  height: 7px;
  background-color: var(--neon);
  flex: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 48px);
  padding-block: clamp(38px, 6vw, 72px);
}

.footer-title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--line-cold-strong);
}

.footer-list {
  display: grid;
  gap: 11px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-link {
  font-size: 15px;
  color: var(--cold-70);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.footer-link:hover {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.footer-item {
  font-size: 15px;
  color: var(--cold-52);
}

.footer-bottom {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
  border-top: 1px solid var(--line-cold);
  padding-block: clamp(26px, 4vw, 46px) clamp(38px, 5vw, 60px);
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--cold);
  line-height: 1.35;
}

.footer-brand span {
  display: block;
  margin-top: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--cold-52);
}

.footer-contact {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 2;
  letter-spacing: 0.03em;
  color: var(--cold-70);
}

.footer-contact__line { display: block; }

.footer-legal {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 2;
  letter-spacing: 0.04em;
  color: var(--cold-52);
}

.footer-legal a {
  color: var(--cold-70);
  border-bottom: 1px solid var(--line-cold-strong);
}

/* ---------- 08 Section head / annotation ---------- */
.section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 34px);
  align-items: start;
  margin-bottom: clamp(28px, 4.5vw, 56px);
}

.section-num {
  font-family: var(--font-display);
  font-size: clamp(44px, 6.4vw, 88px);
  font-weight: 900;
  line-height: 0.82;
  letter-spacing: -0.05em;
  color: var(--neon-40);
  font-variant-numeric: tabular-nums;
  transition: color 0.32s var(--ease);
}

.section.is-current .section-num { color: var(--neon); }

.section--paper .section-num { color: var(--brick-45); }
.section--paper.is-current .section-num { color: var(--brick); }

.section-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cold-52);
  margin-bottom: 12px;
}

.section--paper .section-kicker { color: var(--steel); }

.section-title {
  font-size: clamp(28px, 4.2vw, 52px);
  font-weight: 900;
  letter-spacing: -0.03em;
}

.section-title em { font-style: normal; color: var(--neon); }
.section--paper .section-title em { color: var(--brick); }

.section-lead {
  max-width: 62ch;
  margin-top: 15px;
  font-size: 16px;
  color: var(--cold-70);
}

.section--paper .section-lead { color: var(--steel); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
}

.section--paper .eyebrow { color: var(--brick); }

.side-note {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cold-52);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.section--paper .side-note { color: var(--steel); }

/* ---------- 09 Panels & cards ---------- */
.panel {
  position: relative;
  background-color: var(--pitch);
  color: var(--cold);
  border: var(--bw) solid var(--pitch-deep);
  box-shadow: var(--shadow-hard);
  padding: clamp(20px, 3vw, 34px);
}

.panel--deep {
  background-color: var(--pitch-deep);
  border-color: var(--line-cold-strong);
}

.panel--paper {
  background-color: var(--paper);
  color: var(--ink);
  border-color: var(--ink);
  box-shadow: var(--shadow-hard-brick);
}

.panel--plain { box-shadow: none; }
.panel--flush { padding: 0; }

.panel-title {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.card {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: clamp(18px, 2.4vw, 26px);
  background-color: var(--pitch-deep);
  color: var(--cold);
  border: var(--bw) solid var(--pitch-deep);
  border-left-width: 8px;
  border-left-color: var(--neon);
}

.card--paper {
  background-color: var(--paper);
  color: var(--ink);
  border-color: var(--ink);
  border-left-color: var(--brick);
}

.card-title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--cold-52);
}

.card--paper .card-meta,
.panel--paper .card-meta { color: var(--steel); }

.card-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--cold-70);
}

.card--paper .card-text { color: var(--ink); }

/* ---------- 10 Data modules ---------- */
.scoreboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background-color: var(--line-cold);
  border: var(--bw) solid var(--pitch-deep);
}

.score-cell {
  display: grid;
  gap: 9px;
  align-content: start;
  background-color: var(--pitch-deep);
  padding: 20px 16px;
}

.score-value {
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--neon);
  font-variant-numeric: tabular-nums;
}

.score-label {
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--cold-52);
}

.panel--paper .scoreboard,
.section--paper .scoreboard {
  background-color: var(--line-ink);
  border-color: var(--ink);
}

.panel--paper .score-cell,
.section--paper .score-cell { background-color: var(--paper); }

.panel--paper .score-value,
.section--paper .score-value { color: var(--brick); }

.panel--paper .score-label,
.section--paper .score-label { color: var(--steel); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  padding: 4px 9px;
  border: 2px solid currentColor;
  white-space: nowrap;
  transition: color var(--dur) var(--ease);
}

.tag--ok { color: var(--neon); }
.tag--warn { color: var(--brick); }
.tag--info { color: var(--teal); }
.tag--muted { color: var(--cold-52); }

.timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  border-left: 3px solid var(--line-cold-strong);
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.timeline-item { position: relative; }

.timeline-item::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 8px;
  width: 13px;
  height: 13px;
  background-color: var(--pitch-deep);
  border: 3px solid var(--neon);
}

.timeline-time {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--neon);
  margin-bottom: 6px;
}

.section--paper .timeline,
.panel--paper .timeline { border-left-color: var(--line-ink); }

.section--paper .timeline-item::before,
.panel--paper .timeline-item::before {
  background-color: var(--paper);
  border-color: var(--brick);
}

.section--paper .timeline-time,
.panel--paper .timeline-time { color: var(--brick); }

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  font-size: 15px;
}

.data-table caption {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cold-52);
  padding-bottom: 12px;
}

.data-table th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: left;
  padding: 11px 12px;
  color: var(--cold-70);
  border-bottom: 3px solid var(--neon);
}

.data-table td {
  padding: 13px 12px;
  color: var(--cold-70);
  border-bottom: 1px solid var(--line-cold);
  vertical-align: top;
}

.data-table tbody tr:nth-child(even) td { background-color: rgba(246, 248, 244, 0.03); }

.data-table .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--cold);
  white-space: nowrap;
}

.section--paper .data-table caption,
.panel--paper .data-table caption { color: var(--steel); }

.section--paper .data-table th,
.panel--paper .data-table th {
  color: var(--steel);
  border-bottom-color: var(--brick);
}

.section--paper .data-table td,
.panel--paper .data-table td {
  color: var(--ink);
  border-bottom-color: var(--line-ink);
}

.section--paper .data-table tbody tr:nth-child(even) td,
.panel--paper .data-table tbody tr:nth-child(even) td { background-color: var(--paper-dim); }

.section--paper .data-table .num,
.panel--paper .data-table .num { color: var(--ink); }

/* TOC / index */
.toc-list {
  display: grid;
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc-item { border-bottom: 1px solid var(--line-cold); }

.section--paper .toc-item { border-bottom-color: var(--line-ink); }

.toc-link {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: baseline;
  padding: 16px 0;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.toc-link:hover {
  color: var(--neon);
  padding-left: 8px;
}

.section--paper .toc-link:hover { color: var(--brick); }

.toc-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--neon);
}

.section--paper .toc-index { color: var(--brick); }

.toc-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.toc-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cold-52);
  text-align: right;
}

.section--paper .toc-note { color: var(--steel); }

.fact-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(16px, 3vw, 44px);
  padding-block: 15px;
  border-top: var(--bw) solid var(--neon);
  border-bottom: var(--bw) solid var(--neon);
}

.fact-strip span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cold-70);
}

.section--paper .fact-strip { border-color: var(--brick); }
.section--paper .fact-strip span { color: var(--steel); }

/* ---------- 11 Text blocks ---------- */
.prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.78;
}

.prose > * + * { margin-top: 1.15em; }

.prose h2 {
  font-size: clamp(22px, 2.6vw, 30px);
  margin-top: 1.9em;
  letter-spacing: -0.02em;
}

.prose h3 {
  font-size: clamp(18px, 2.1vw, 22px);
  margin-top: 1.6em;
}

.prose ul,
.prose ol {
  padding-left: 1.4em;
  display: grid;
  gap: 0.5em;
}

.prose ul { list-style: square; }
.prose ol { list-style: decimal; }

.prose li::marker { color: var(--neon); }
.section--paper .prose li::marker { color: var(--brick); }

.prose a { border-bottom: 2px solid var(--neon); }
.section--paper .prose a { border-bottom-color: var(--brick); }

.prose blockquote {
  border-left: 5px solid var(--neon);
  padding: 4px 0 4px 20px;
  font-size: 18px;
  color: var(--cold);
}

.section--paper .prose blockquote {
  border-left-color: var(--brick);
  color: var(--ink);
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background-color: rgba(203, 242, 76, 0.14);
  padding: 2px 6px;
}

.section--paper .prose code { background-color: rgba(192, 69, 43, 0.12); }

.link-neon {
  color: var(--neon);
  border-bottom: 2px solid rgba(203, 242, 76, 0.45);
  transition: border-color var(--dur) var(--ease);
}

.link-neon:hover { border-bottom-color: var(--neon); }

.section--paper .link-neon {
  color: var(--brick);
  border-bottom-color: var(--brick-45);
}

.section--paper .link-neon:hover { border-bottom-color: var(--brick); }

/* Breadcrumb */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb li { display: inline-flex; align-items: center; gap: 8px; }

.breadcrumb li + li::before {
  content: "/";
  color: var(--steel);
}

.breadcrumb a { color: var(--cold-70); border-bottom: 1px solid transparent; }
.breadcrumb a:hover { color: var(--neon); border-bottom-color: var(--neon); }

.section--paper .breadcrumb a { color: var(--steel); }
.section--paper .breadcrumb a:hover { color: var(--brick); border-bottom-color: var(--brick); }

/* ---------- 12 Media frames ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background-color: var(--pitch-deep);
  border: var(--bw) solid var(--cold);
  box-shadow: var(--shadow-hard);
}

.media-frame > img,
.media-frame > svg,
.media-frame > picture {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(246, 248, 244, 0.055) 0 1px,
    transparent 1px 5px
  );
  pointer-events: none;
}

.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--strip { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--square { aspect-ratio: 1 / 1; }

.media-frame--paper {
  background-color: var(--paper-dim);
  border-color: var(--ink);
  box-shadow: var(--shadow-hard-brick);
}

.media-frame__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  max-width: 100%;
  background-color: var(--neon);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  padding: 5px 11px;
}

.media-frame--paper .media-frame__caption {
  background-color: var(--brick);
  color: var(--cold);
}

/* ---------- 13 Reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 14 Responsive ---------- */
@media (max-width: 1080px) {
  .header-hours { display: none; }
  .nav-list { gap: clamp(10px, 2vw, 22px); }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .header-top__inner { min-height: 64px; gap: 12px; }
  .ticker { display: none; }
  .nav-toggle { display: inline-flex; }

  .header-nav {
    position: fixed;
    inset: 0;
    z-index: 120;
    padding: clamp(84px, 14vh, 124px) var(--pad) 48px;
    overflow-y: auto;
    background-color: var(--pitch-deep);
    border-bottom: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-14px);
    transition: opacity 0.22s var(--ease), transform 0.22s var(--ease),
      visibility 0s linear 0.22s;
  }

  .header-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: opacity 0.22s var(--ease), transform 0.22s var(--ease),
      visibility 0s linear 0s;
  }

  .header-nav .container {
    display: block;
    max-width: none;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list li { border-bottom: 1px solid var(--line-cold); }

  .nav-link {
    font-family: var(--font-display);
    font-size: clamp(22px, 6vw, 32px);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--cold);
    padding: 18px 0 16px;
    border-bottom: 0;
  }

  .nav-link[aria-current="page"] {
    color: var(--neon);
    padding-left: 14px;
    border-left: 4px solid var(--neon);
  }

  .grid--3,
  .grid--5-7,
  .grid--7-5,
  .grid--sidebar { grid-template-columns: minmax(0, 1fr); }

  .section-head { grid-template-columns: minmax(0, 1fr); gap: 12px; }

  .timeline { padding-left: 22px; }
  .timeline-item::before { left: -30px; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .grid--2,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .brand-tag { display: none; }
  .brand-mark { width: 40px; height: 40px; font-size: 13px; }
  .toc-link { grid-template-columns: 46px minmax(0, 1fr); }
  .toc-note { grid-column: 2; text-align: left; }
  .scoreboard { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .media-frame { box-shadow: 5px 5px 0 var(--pitch-deep); }
  .media-frame--paper { box-shadow: 5px 5px 0 var(--brick); }
  .side-note { writing-mode: horizontal-tb; transform: none; }
}

/* ---------- 15 Motion & contrast preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .ticker-track { animation: none; }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .scroll-progress { display: none; }
}

@media (prefers-contrast: more) {
  :root {
    --line-cold: rgba(246, 248, 244, 0.34);
    --cold-52: rgba(246, 248, 244, 0.78);
    --cold-70: rgba(246, 248, 244, 0.92);
  }
}