/* =========================================================
   /assets/site.css — 中欧赛事 全站共享样式
   夜间球场记分牌 · 七栏记录带 · 侧轨导航
   ========================================================= */

/* ---- 1. Reset ---- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body, h1, h2, h3, h4, h5, p, ul, ol, li, figure, figcaption,
blockquote, dl, dt, dd, table, th, td, fieldset, legend {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }
img, svg, video { display: block; max-width: 100%; height: auto; }
table { border-collapse: collapse; }
a { color: inherit; }
button { font: inherit; color: inherit; background: none; border: 0; }
main { display: block; }
[hidden] { display: none !important; }

/* ---- 2. 变量 ---- */
:root {
  --ink-900: #06120F;
  --ink-800: #0B1F19;
  --ink-700: #12302A;
  --line: #1F4A3F;
  --signal: #35F0A8;
  --signal-deep: #0FA36B;
  --sand: #E8C57A;
  --paper: #F2EFE6;
  --muted: #A9BDB4;
  --alert: #FF6B57;

  --rail-w: 244px;
  --bar-h: 62px;
  --shell-max: 1320px;
  --shell-pad: clamp(16px, 3.4vw, 44px);
  --gap: clamp(14px, 1.8vw, 26px);

  --font-display: "Arial Narrow", "Helvetica Neue", "PingFang SC",
                  "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB",
               "Source Han Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "Roboto Mono", Menlo,
               Consolas, "Courier New", monospace;
}

/* ---- 3. 基础排版 ---- */
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.005em;
  color: var(--paper);
  background-color: var(--ink-900);
  background-image: radial-gradient(120% 55% at 50% -8%, rgba(53, 240, 168, 0.08), transparent 62%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-left: var(--rail-w);
}

@media (min-width: 1200px) {
  body { font-size: 17px; }
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  text-wrap: balance;
}

p { max-width: 68ch; }
strong, b { font-weight: 700; color: var(--paper); }
small { font-size: 12px; }

.display-xl { font-size: clamp(40px, 7.2vw, 96px); line-height: 0.98; }
.display-lg { font-size: clamp(32px, 4.6vw, 60px); }
.display-md { font-size: clamp(24px, 3vw, 36px); line-height: 1.14; }

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sand);
}

.chapter-no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--sand);
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

#main-content { scroll-margin-top: 16px; }

/* ---- 4. 布局工具 ---- */
.container {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--shell-pad);
}

.container--tight {
  max-width: 880px;
  margin-inline: auto;
  padding-inline: var(--shell-pad);
}

.rule {
  height: 1px;
  border: 0;
  background: var(--line);
}

.grid-7 {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: var(--gap);
}

.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }

.prose {
  display: grid;
  gap: 1.05em;
  max-width: 68ch;
}

.prose p { max-width: 68ch; }

.section-band {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  align-items: end;
  gap: var(--gap);
  padding-block: clamp(18px, 2.4vw, 32px);
  padding-inline: clamp(14px, 2vw, 28px);
  border-block: 1px solid var(--line);
  background: linear-gradient(90deg, var(--ink-700), var(--ink-800) 58%, var(--ink-900));
}

/* ---- 5. 按钮与信号元素 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--paper);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.btn:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.btn--ghost {
  border-color: var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.btn--ghost:hover {
  color: var(--signal);
  border-color: var(--signal);
  background: rgba(53, 240, 168, 0.06);
}

.btn--signal {
  background: var(--signal);
  border-color: var(--signal);
  color: #04140F;
}

.btn--signal:hover {
  background: var(--signal-deep);
  border-color: var(--signal-deep);
  color: #04140F;
}

.signal-block {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  background: var(--signal);
  border: 1px solid var(--signal);
  color: #04140F;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.3;
  text-decoration: none;
  box-shadow: 0 0 0 1px rgba(53, 240, 168, 0.3),
              0 14px 36px -22px rgba(53, 240, 168, 0.95);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.signal-block:hover {
  background: var(--signal-deep);
  border-color: var(--signal-deep);
  animation: signalPulse 2.4s ease-out 1;
}

.signal-block__text { display: block; }
.signal-block__arrow { font-family: var(--font-mono); font-size: 14px; }

@keyframes signalPulse {
  0%   { box-shadow: 0 0 0 1px rgba(53, 240, 168, 0.3), 0 0 0 0 rgba(53, 240, 168, 0.5); }
  100% { box-shadow: 0 0 0 1px rgba(53, 240, 168, 0.3), 0 0 0 16px rgba(53, 240, 168, 0); }
}

.status-dot {
  flex: none;
  width: 6px;
  height: 6px;
  background: var(--signal);
  box-shadow: 0 0 0 3px rgba(53, 240, 168, 0.16), 0 0 10px rgba(53, 240, 168, 0.85);
}

/* ---- 6. 跳转链接 ---- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 300;
  padding: 10px 16px;
  background: var(--signal);
  color: #04140F;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
  outline: 2px solid var(--paper);
  outline-offset: 2px;
}

/* ---- 7. 页头 / 侧轨 ---- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail-w);
  z-index: 80;
  background: var(--ink-800);
  border-right: 1px solid var(--line);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--signal), rgba(53, 240, 168, 0.06) 58%, var(--sand));
  opacity: 0.75;
  pointer-events: none;
}

.site-header__bar { display: none; }

.rail {
  height: 100%;
}

.rail__inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 100%;
  padding: 24px 16px 18px;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.rail__inner::-webkit-scrollbar { width: 4px; }
.rail__inner::-webkit-scrollbar-thumb { background: var(--line); }

.brand {
  display: grid;
  gap: 6px;
  text-decoration: none;
  color: var(--paper);
}

.brand--compact { display: none; }

.brand__mark {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--signal);
}

.brand__name {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.brand__tag {
  font-size: 12px;
  line-height: 1.55;
  color: var(--muted);
  transition: opacity 0.25s ease, max-height 0.25s ease;
  max-height: 4em;
  overflow: hidden;
}

.rail__status {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  background: var(--ink-700);
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.6;
  color: var(--muted);
  max-width: none;
  transition: opacity 0.25s ease, max-height 0.25s ease, padding 0.25s ease;
  max-height: 8em;
  overflow: hidden;
}

.rail__status .status-dot { margin-top: 6px; }
.rail__status-text { display: block; }

.site-nav { display: block; }

.site-nav__list {
  display: grid;
  gap: 2px;
}

.site-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.site-nav__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--sand);
  opacity: 0.72;
}

.site-nav__label { display: block; }

.site-nav a:hover {
  background: var(--ink-700);
  color: var(--paper);
  border-left-color: var(--signal-deep);
}

.site-nav a[aria-current="page"] {
  background: linear-gradient(90deg, rgba(53, 240, 168, 0.16), rgba(53, 240, 168, 0));
  border-left-color: var(--signal);
  color: var(--paper);
  font-weight: 700;
}

.site-nav a[aria-current="page"] .site-nav__no {
  color: var(--signal);
  opacity: 1;
}

.rail__cta {
  display: grid;
  gap: 8px;
  padding-top: 4px;
}

.rail__foot {
  display: grid;
  gap: 7px;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.rail__meta {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.rail__meter {
  height: 3px;
  background: var(--ink-700);
  overflow: hidden;
}

.rail__meter-fill {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--signal-deep), var(--signal));
  transition: width 0.12s linear;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  color: var(--paper);
  cursor: pointer;
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: var(--signal);
  transition: background-color 0.2s ease;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--signal);
  transition: transform 0.22s ease;
}

.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

.nav-toggle__text {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.site-header[data-open="true"] .nav-toggle__bars { background: transparent; }
.site-header[data-open="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.site-header[data-open="true"] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

/* 顶部阅读进度条 */
.progress {
  position: fixed;
  top: 0;
  left: var(--rail-w);
  right: 0;
  height: 2px;
  z-index: 90;
  background: rgba(31, 74, 63, 0.55);
  pointer-events: none;
}

.progress__fill {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--signal-deep), var(--signal));
  transition: width 0.12s linear;
}

/* 桌面滚动收窄 */
@media (min-width: 1024px) {
  .site-header.is-condensed .brand__tag,
  .site-header.is-condensed .rail__status {
    opacity: 0;
    max-height: 0;
    padding-block: 0;
    margin: 0;
    border-color: transparent;
  }
}

/* ---- 8. 面包屑 ---- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.breadcrumbs a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.breadcrumbs__sep { color: var(--line); }

.breadcrumbs [aria-current="page"] {
  color: var(--sand);
  border: 0;
}

/* ---- 9. 记录带 / 档案卡 / 标签 ---- */
.ledger-wrap {
  border: 1px solid var(--line);
  background: var(--ink-800);
  overflow-x: auto;
}

.ledger {
  width: 100%;
  min-width: 660px;
  font-size: 14px;
  line-height: 1.5;
}

.ledger th,
.ledger td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.ledger thead th {
  background: var(--ink-700);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.ledger tbody tr:nth-child(even) { background: var(--ink-700); }
.ledger tbody tr:hover { background: rgba(53, 240, 168, 0.07); }

.ledger tbody th,
.ledger tbody td:first-child {
  position: sticky;
  left: 0;
  background: var(--ink-800);
  color: var(--paper);
  font-weight: 700;
}

.ledger tbody tr:nth-child(even) td:first-child { background: var(--ink-700); }

.ledger .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--paper);
}

.card {
  position: relative;
  padding: clamp(16px, 2vw, 26px);
  background: var(--ink-700);
  border: 1px solid var(--line);
  box-shadow: 0 16px 0 -12px var(--ink-800),
              0 0 0 1px rgba(31, 74, 63, 0.45);
}

.card__label {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 9px;
  border: 1px solid var(--sand);
  color: var(--sand);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  background: var(--ink-800);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

[aria-pressed="true"].tag,
.tag[aria-pressed="true"] {
  border-color: var(--signal);
  background: rgba(53, 240, 168, 0.12);
  color: var(--signal);
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--signal-deep);
  color: var(--signal);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.badge--alert {
  border-color: var(--alert);
  color: var(--alert);
}

/* ---- 10. 图像容器基础规则 ---- */
.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, rgba(31, 74, 63, 0.5) 0 1px, transparent 1px 12.5%),
    linear-gradient(150deg, var(--ink-700), var(--ink-900));
}

.media-frame > img,
.media-frame > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.06);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(6, 18, 15, 0) 42%, rgba(6, 18, 15, 0.78));
}

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

.media-frame__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 1;
  padding: 8px 12px;
  background: rgba(6, 18, 15, 0.74);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--sand);
}

/* ---- 11. 页脚 ---- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 7vw, 104px);
  padding-top: clamp(34px, 4.4vw, 60px);
  background: var(--ink-800);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--signal), rgba(53, 240, 168, 0.18) 42%, transparent 78%);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: clamp(20px, 2.4vw, 34px);
  padding-bottom: clamp(26px, 3vw, 44px);
}

.site-footer__brand {
  grid-column: span 2;
  display: grid;
  gap: 9px;
  align-content: start;
}

.footer-mark {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--signal);
  max-width: none;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: none;
}

.footer-desc {
  font-size: 13px;
  line-height: 1.72;
  color: var(--muted);
  max-width: 34ch;
}

.footer-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-self: start;
  margin-top: 2px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  background: var(--ink-700);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
  max-width: none;
}

.footer-col { grid-column: span 1; }

.footer-col__heading {
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sand);
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.footer-links a:hover {
  color: var(--paper);
  border-bottom-color: var(--signal);
}

.footer-contact {
  grid-column: span 2;
  display: grid;
  gap: 9px;
  align-content: start;
}

.footer-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(31, 74, 63, 0.9);
  font-size: 13px;
}

.footer-contact__label {
  min-width: 36px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sand);
}

.footer-contact__value {
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.01em;
  word-break: break-all;
}

.copy-btn {
  padding: 3px 9px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.copy-btn:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: #04140F;
}

.footer-note {
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 36ch;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 16px 22px;
  border-top: 1px solid var(--line);
}

.footer-bottom__copy,
.footer-bottom__icp {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--muted);
  max-width: none;
}

.to-top {
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: var(--ink-700);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.to-top:hover {
  border-color: var(--signal);
  color: var(--signal);
}

/* ---- 12. 显现动效 ---- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.42s ease, transform 0.42s ease;
}

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

/* ---- 13. 响应式 ---- */
@media (max-width: 1099px) {
  .site-footer__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .site-footer__brand { grid-column: span 3; }
  .footer-contact { grid-column: span 3; }
}

@media (max-width: 1023px) {
  body {
    padding-left: 0;
    padding-top: var(--bar-h);
  }

  .site-header {
    top: 0;
    right: 0;
    bottom: auto;
    left: 0;
    width: 100%;
    height: var(--bar-h);
    border-right: 0;
    border-bottom: 1px solid var(--line);
    background: rgba(11, 31, 25, 0.95);
    backdrop-filter: blur(10px);
  }

  .site-header::before {
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--signal), rgba(53, 240, 168, 0.15) 55%, transparent);
  }

  .site-header::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 1;
    background: rgba(6, 18, 15, 0.72);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.28s ease, visibility 0.28s ease;
  }

  .site-header[data-open="true"]::after {
    opacity: 1;
    visibility: visible;
  }

  .site-header__bar {
    position: relative;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    height: 100%;
    padding-inline: 14px;
  }

  .brand--compact {
    display: inline-flex;
    align-items: baseline;
    gap: 8px;
  }

  .brand--compact .brand__mark { font-size: 10px; }
  .brand--compact .brand__name { font-size: 18px; }

  .nav-toggle { display: inline-flex; }

  .rail {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 2;
    width: min(86vw, 320px);
    height: 100%;
    background: var(--ink-800);
    border-right: 1px solid var(--line);
    transform: translateX(-102%);
    transition: transform 0.32s cubic-bezier(0.3, 0.8, 0.3, 1);
  }

  .site-header[data-open="true"] .rail { transform: translateX(0); }

  .rail__inner {
    height: 100%;
    padding: calc(var(--bar-h) + 14px) 16px 24px;
  }

  .progress { left: 0; }

  html.nav-open,
  html.nav-open body { overflow: hidden; }

  .grid-7,
  .section-band { grid-template-columns: repeat(3, minmax(0, 1fr)); }

  .span-4, .span-5, .span-6, .span-7 { grid-column: span 3; }
}

@media (max-width: 619px) {
  .site-footer__grid { grid-template-columns: minmax(0, 1fr); }
  .site-footer__brand,
  .footer-col,
  .footer-contact { grid-column: span 1; }

  .grid-7,
  .section-band { grid-template-columns: minmax(0, 1fr); }

  .span-2, .span-3, .span-4, .span-5, .span-6, .span-7 { grid-column: span 1; }

  .footer-bottom { justify-content: flex-start; }
}

/* ---- 14. 降低动效偏好 ---- */
@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;
  }

  .signal-block:hover { animation: none; }

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