/* ==========================================================================
   皇冠足球站 — /assets/site.css
   共享外壳：reset · 设计变量 · 中文排版 · 头部 · 页脚 · 通用组件
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body, h1, h2, h3, h4, h5, h6, p, ul, ol, figure, blockquote, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
hr { border: 0; margin: 0; }
table { border-collapse: collapse; width: 100%; }

/* ---------- 2. 设计变量 ---------- */
:root {
  color-scheme: dark;

  /* 色板：深夜球场数据室 */
  --night: #0B3B2E;
  --deep: #08251C;
  --panel: #12332A;
  --gold: #F5C542;
  --gold-soft: #FFE9A8;
  --cyan: #39D2C0;
  --orange: #FF7A45;
  --paper: #F7F4EC;
  --mist: #A9BDB6;
  --edge: #6E8B81;

  --ink: #F7F4EC;
  --ink-dim: #A9BDB6;
  --ink-quiet: rgba(169, 189, 182, .72);
  --hairline: rgba(110, 139, 129, .34);
  --hairline-soft: rgba(110, 139, 129, .18);
  --panel-soft: rgba(18, 51, 42, .72);

  /* 字体：中文无衬线 + 等宽数字 */
  --font-sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;

  /* 六级字号阶梯 */
  --fs-xxl: clamp(2.4rem, 5.5vw, 5.25rem);
  --fs-xl: clamp(1.85rem, 3.4vw, 3rem);
  --fs-l: clamp(1.4rem, 2.2vw, 2rem);
  --fs-m: 1.25rem;
  --fs-base: 1rem;
  --fs-s: .8125rem;
  --fs-xs: .75rem;

  /* 尺度 */
  --baseline: 12px;
  --shell: 1280px;
  --shell-wide: 1440px;
  --shell-narrow: 820px;
  --gutter: clamp(18px, 4vw, 56px);
  --header-h: 72px;
  --radius: 12px;
  --radius-s: 8px;
  --cut: -6deg;
}

@media (max-width: 960px) {
  :root { --header-h: 60px; }
}

/* ---------- 3. 中文排版基底 ---------- */
body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.75;
  letter-spacing: .01em;
  color: var(--ink);
  background-color: var(--night);
  background-image:
    radial-gradient(90% 55% at 8% -8%, rgba(57, 210, 192, .14), transparent 62%),
    radial-gradient(70% 45% at 102% 0%, rgba(245, 197, 66, .10), transparent 58%),
    linear-gradient(180deg, rgba(8, 37, 28, 0) 45%, rgba(8, 37, 28, .55));
  background-repeat: no-repeat;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: .02em;
}

main { padding-top: var(--header-h); }
main.main--bleed { padding-top: 0; }
.page-top { padding-top: calc(var(--header-h) + clamp(32px, 6vw, 76px)); }

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

/* ---------- 4. 通用容器与章节 ---------- */
.container {
  width: min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline: auto;
}
.container--narrow { --shell: 820px; }
.container--wide { --shell: 1440px; }

.section { padding-block: clamp(44px, 7vw, 96px); }

.section--panel {
  background:
    linear-gradient(120deg, rgba(18, 51, 42, .92), rgba(8, 37, 28, .78)),
    var(--deep);
  border-block: 1px solid var(--hairline-soft);
}

.section--paper {
  background: var(--paper);
  color: #14261F;
  border-block: 1px solid rgba(11, 59, 46, .14);
}

.section--paper .section-title { color: var(--night); }
.section--paper .lede { color: #35544C; }
.section--paper .prose { color: #23392F; }
.section--paper .eyebrow { color: #0E6B5C; }
.section--paper .eyebrow::before { color: #A97C10; }
.section--paper .mono { color: #17332A; }
.section--paper .rule { background: linear-gradient(90deg, #A97C10, rgba(11, 59, 46, .12)); }
.section--paper .tag {
  background: rgba(11, 59, 46, .06);
  border-color: rgba(11, 59, 46, .22);
  color: #35544C;
}
.section--paper .btn--ghost { color: var(--night); border-color: rgba(11, 59, 46, .42); }
.section--paper .btn--ghost:hover { color: #0E6B5C; border-color: #0E6B5C; }
.section--paper .figure-frame { border-color: rgba(11, 59, 46, .22); }
.section--paper .figure-caption { color: #5A736B; }
.section--paper .breadcrumb,
.section--paper .breadcrumb a { color: #4E6B62; }

/* ---------- 5. 文字组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-xs);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "—";
  color: var(--gold);
  letter-spacing: 0;
}

.section-title {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: var(--fs-xl);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--paper);
  text-wrap: balance;
}
.section-title + .lede { margin-top: 16px; }

.lede {
  font-size: var(--fs-m);
  line-height: 1.7;
  color: rgba(247, 244, 236, .82);
  max-width: 48ch;
}

.prose { max-width: 68ch; color: rgba(247, 244, 236, .88); }
.prose p + p { margin-top: 1.05em; }
.prose strong { color: var(--gold-soft); font-weight: 700; }

.rule {
  height: 1px;
  background: linear-gradient(90deg, var(--gold), rgba(110, 139, 129, .06));
}

/* ---------- 6. 标签与按钮 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--hairline);
  background: var(--panel-soft);
  color: var(--ink-dim);
  font-size: var(--fs-xs);
  letter-spacing: .08em;
  line-height: 1.6;
}
.tag--gold { border-color: rgba(245, 197, 66, .6); color: var(--gold); background: rgba(245, 197, 66, .10); }
.tag--cyan { border-color: rgba(57, 210, 192, .55); color: var(--cyan); background: rgba(57, 210, 192, .10); }
.tag--orange { border-color: rgba(255, 122, 69, .55); color: var(--orange); background: rgba(255, 122, 69, .12); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-s);
  border: 1px solid transparent;
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: .03em;
  line-height: 1.4;
  transition: transform .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn--primary { background: var(--gold); color: var(--deep); border-color: var(--gold); }
.btn--primary:hover { background: var(--gold-soft); border-color: var(--gold-soft); }
.btn--ghost { color: var(--paper); border-color: rgba(110, 139, 129, .65); }
.btn--ghost:hover { color: var(--cyan); border-color: var(--cyan); }
.btn--quiet { background: rgba(57, 210, 192, .12); color: var(--cyan); border-color: rgba(57, 210, 192, .45); }
.btn--quiet:hover { background: rgba(57, 210, 192, .2); }

/* ---------- 7. 面包屑 ---------- */
.breadcrumb {
  font-size: var(--fs-s);
  color: var(--ink-dim);
  margin-bottom: 22px;
}
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.breadcrumb-list li + li::before {
  content: "/";
  color: var(--edge);
  margin-right: 8px;
}
.breadcrumb a {
  color: var(--ink-dim);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(110, 139, 129, .6);
}
.breadcrumb a:hover { color: var(--gold); text-decoration-color: var(--gold); }
.breadcrumb [aria-current="page"] { color: var(--paper); }

/* ---------- 8. 网格与数据带 ---------- */
.grid { display: grid; gap: clamp(20px, 3vw, 40px); }
.grid--split { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
.grid--halves { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--8 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-8 { grid-column: span 8; }

.stacked-band {
  border-block: 1px solid var(--hairline);
  background:
    linear-gradient(90deg, rgba(18, 51, 42, .92), rgba(8, 37, 28, .68) 52%, rgba(57, 210, 192, .12));
  padding-block: clamp(16px, 2.4vw, 28px);
}

/* ---------- 9. 图像容器（页面阶段放图） ---------- */
.figure { --figure-ratio: 16 / 9; margin: 0; }

.figure-frame {
  position: relative;
  aspect-ratio: var(--figure-ratio);
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background:
    repeating-linear-gradient(135deg, rgba(110, 139, 129, .13) 0 1px, transparent 1px 14px),
    linear-gradient(160deg, rgba(18, 51, 42, .95), rgba(8, 37, 28, .95));
}
.figure-frame > img,
.figure-frame > svg,
.figure-frame > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.figure-frame[data-label]::after {
  content: attr(data-label);
  position: absolute;
  left: 14px;
  bottom: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .08em;
  color: var(--gold);
}
.figure-frame--wide { --figure-ratio: 21 / 9; }
.figure-frame--tall { --figure-ratio: 3 / 4; }
.figure-frame--square { --figure-ratio: 1 / 1; }

.figure-caption {
  margin-top: 10px;
  font-size: var(--fs-xs);
  letter-spacing: .06em;
  color: var(--ink-dim);
}

.cut-corner {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

/* ---------- 10. 显现动效协议 ---------- */
html[data-js="true"] [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .5s ease, transform .5s cubic-bezier(.22, .61, .36, 1);
}
html[data-js="true"] [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 11. 头部 ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: 8px;
  z-index: 140;
  padding: 10px 16px;
  border-radius: var(--radius-s);
  background: var(--gold);
  color: var(--deep);
  font-size: var(--fs-s);
  font-weight: 700;
  letter-spacing: .04em;
  transform: translateY(-180%);
  transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: linear-gradient(180deg, rgba(8, 37, 28, .78), rgba(8, 37, 28, 0));
  transition: background-color .3s ease, box-shadow .3s ease, backdrop-filter .3s ease;
}
.site-header[data-scrolled="true"] {
  background: linear-gradient(180deg, rgba(11, 59, 46, .99), rgba(8, 37, 28, .97));
  box-shadow: 0 1px 0 0 var(--hairline), 0 20px 44px -34px #000;
  backdrop-filter: blur(10px) saturate(120%);
}

.header-inner {
  width: min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline: auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.4vw, 40px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  min-width: 0;
}

.brand-mark {
  position: relative;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border: 1px solid var(--gold);
  border-radius: 7px;
  transform: rotate(var(--cut));
  background:
    linear-gradient(158deg, rgba(245, 197, 66, .92) 0 44%, rgba(11, 59, 46, 0) 44%),
    linear-gradient(200deg, rgba(57, 210, 192, .38), rgba(8, 37, 28, .95));
  box-shadow: inset 0 0 0 1px rgba(8, 37, 28, .65);
}
.brand-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 5px;
  height: 5px;
  background: var(--deep);
  transform: translate(-50%, -50%);
}

.brand-name {
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
  white-space: nowrap;
}
.brand-tag {
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  color: var(--gold);
  padding-left: 10px;
  border-left: 1px solid var(--hairline);
  white-space: nowrap;
}

.site-nav {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  gap: clamp(16px, 2vw, 32px);
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.5vw, 24px);
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 6px 2px;
  font-family: var(--font-mono);
  font-size: var(--fs-s);
  letter-spacing: .02em;
  color: rgba(247, 244, 236, .78);
  white-space: nowrap;
  transition: color .2s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .28s ease;
}
.nav-link:hover { color: var(--gold-soft); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link[aria-current="page"] { color: var(--gold); }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.nav-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(110, 139, 129, .5);
  font-size: var(--fs-s);
  letter-spacing: .04em;
  color: var(--paper);
  white-space: nowrap;
  transition: border-color .2s ease, background-color .2s ease, color .2s ease;
}
.nav-action:hover { border-color: var(--cyan); color: var(--cyan); }
.nav-action--primary {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--deep);
  font-weight: 700;
}
.nav-action--primary:hover { background: var(--gold-soft); border-color: var(--gold-soft); color: var(--deep); }

.nav-toggle {
  display: none;
  margin-left: auto;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid rgba(110, 139, 129, .5);
  border-radius: 10px;
  color: var(--paper);
  font-size: var(--fs-s);
  letter-spacing: .08em;
}
.nav-toggle-bars { display: grid; gap: 4px; width: 16px; }
.nav-toggle-bar {
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle-text { line-height: 1; }

.header-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: rgba(110, 139, 129, .22);
  overflow: hidden;
}
.header-progress-fill {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
}

/* ---------- 12. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(64px, 10vw, 140px);
  background:
    linear-gradient(180deg, rgba(11, 59, 46, 0), rgba(8, 37, 28, 1) 26%),
    var(--deep);
  color: var(--ink-dim);
  border-top: 1px solid var(--hairline);
  overflow: hidden;
}

.footer-band {
  height: 6px;
  width: 100%;
  background:
    linear-gradient(90deg,
      var(--gold) 0 20%,
      var(--deep) 20% 21.5%,
      var(--cyan) 21.5% 42%,
      var(--deep) 42% 43.5%,
      var(--orange) 43.5% 50%,
      var(--deep) 50% 100%);
  opacity: .9;
}

.footer-inner {
  width: min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(230px, 1.1fr) minmax(0, 1.7fr) minmax(250px, 1.1fr);
  gap: clamp(28px, 4vw, 64px);
  padding-block: clamp(48px, 7vw, 84px) clamp(36px, 5vw, 56px);
}

.footer-mark {
  font-size: var(--fs-m);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}
.footer-note {
  margin-top: 12px;
  font-size: var(--fs-s);
  line-height: 1.8;
  color: var(--ink-quiet);
  max-width: 34ch;
}
.footer-meta {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .06em;
  color: var(--edge);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 40px);
}
.footer-col-title {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hairline-soft);
}
.footer-list { margin-top: 14px; display: grid; gap: 10px; }
.footer-list a {
  font-size: var(--fs-s);
  color: var(--ink-dim);
  padding-left: 12px;
  position: relative;
  transition: color .2s ease;
}
.footer-list a::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 5px;
  height: 1px;
  background: var(--edge);
  transition: width .2s ease, background-color .2s ease;
}
.footer-list a:hover { color: var(--gold); }
.footer-list a:hover::before { width: 9px; background: var(--gold); }

.footer-contact {
  align-self: start;
  padding: 18px 20px 20px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background:
    linear-gradient(150deg, rgba(18, 51, 42, .95), rgba(8, 37, 28, .9)),
    var(--panel);
}
.footer-contact-line {
  display: grid;
  grid-template-columns: 5.5em minmax(0, 1fr);
  gap: 4px 12px;
  padding: 6px 0;
  font-size: var(--fs-s);
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}
.footer-contact-key {
  font-size: var(--fs-xs);
  letter-spacing: .1em;
  color: var(--cyan);
}
.footer-contact-note {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--hairline-soft);
  font-size: var(--fs-xs);
  line-height: 1.8;
  color: var(--ink-quiet);
}

.footer-legal {
  width: min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline: auto;
  border-top: 1px solid var(--hairline-soft);
  padding-block: 18px 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 28px;
  font-size: var(--fs-s);
}
.footer-copy { font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .06em; color: var(--edge); }
.footer-legal-list { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-legal-list a {
  color: var(--ink-dim);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(110, 139, 129, .55);
  transition: color .2s ease;
}
.footer-legal-list a:hover { color: var(--gold); text-decoration-color: var(--gold); }

.to-top {
  position: fixed;
  right: clamp(14px, 3vw, 32px);
  bottom: clamp(14px, 3vw, 32px);
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(8, 37, 28, .45);
  background: var(--gold);
  color: var(--deep);
  font-size: var(--fs-s);
  font-weight: 700;
  letter-spacing: .06em;
  box-shadow: 0 16px 32px -20px #000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .24s ease, transform .24s ease, visibility .24s;
}
.to-top::before { content: "↑"; font-family: var(--font-mono); }
.to-top[data-visible="true"] { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--gold-soft); }

/* ---------- 13. 平板 ---------- */
@media (max-width: 1180px) {
  .brand-tag { display: none; }
  .nav-action { padding: 7px 12px; }
}

@media (max-width: 1080px) {
  .grid--split { grid-template-columns: minmax(0, 1fr); }
  .footer-inner { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .grid--8 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .col-3, .col-4 { grid-column: span 2; }
  .col-5, .col-6, .col-8 { grid-column: span 4; }
}

/* ---------- 14. 移动端导航 ---------- */
@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: fixed;
    left: 0;
    right: 0;
    top: var(--header-h);
    display: grid;
    gap: 0;
    padding: 8px var(--gutter) 26px;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    background: linear-gradient(180deg, rgba(8, 37, 28, .99), rgba(11, 59, 46, .99));
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
    box-shadow: 0 30px 60px -40px #000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity .24s ease, transform .24s ease, visibility .24s;
  }
  .site-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  html[data-nav-open="true"] { overflow: hidden; }
  html[data-nav-open="true"] .site-header {
    background: linear-gradient(180deg, rgba(11, 59, 46, .99), rgba(8, 37, 28, .98));
  }

  .nav-list {
    display: grid;
    gap: 0;
    width: 100%;
  }
  .nav-item { border-bottom: 1px solid var(--hairline-soft); }
  .nav-link {
    display: block;
    padding: 14px 0;
    font-family: var(--font-sans);
    font-size: var(--fs-base);
  }
  .nav-link::after { display: none; }
  .nav-link[aria-current="page"]::before {
    content: "▸";
    margin-right: 8px;
    color: var(--gold);
    font-size: .8em;
  }

  .nav-actions {
    margin-left: 0;
    display: grid;
    gap: 10px;
    padding-top: 18px;
  }
  .nav-action { justify-content: center; padding: 12px 16px; }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    padding-block: clamp(36px, 8vw, 56px) clamp(28px, 6vw, 40px);
  }
  .footer-contact { grid-column: auto; }
  .footer-note { max-width: none; }
}

@media (max-width: 640px) {
  .grid--halves { grid-template-columns: minmax(0, 1fr); }
  .grid--8 { grid-template-columns: minmax(0, 1fr); }
  .col-3, .col-4, .col-5, .col-6, .col-8 { grid-column: span 1; }
  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-legal { justify-content: flex-start; }
  .lede { font-size: 1.125rem; }
  .brand-name { font-size: 1rem; }
}

/* ---------- 15. 无障碍与动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  html[data-js="true"] [data-reveal] { opacity: 1; transform: none; }
  .btn:hover, .to-top { transform: none; }
}