/* =========================================================
   亚星体育 / 共享站点样式  /assets/site.css
   青海湖夜蓝框架 · 粗野主义边框 · 编号长卷
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--bar-h) + 20px);
}

body {
  margin: 0;
  background: var(--c-night);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-top: var(--bar-h);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 .6em;
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--c-cream);
}

p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.2em; }
img, svg, video { max-width: 100%; display: block; }
button { font: inherit; color: inherit; }
table { border-collapse: collapse; width: 100%; }

a { color: var(--c-ice); text-decoration: none; }
a:hover { color: var(--c-yellow); }

hr {
  border: 0;
  border-top: 2px solid var(--line);
  margin: clamp(24px, 4vw, 48px) 0;
}

::selection { background: var(--c-yellow); color: var(--c-night-deep); }

/* ---------- 2. 设计令牌 ---------- */
:root {
  /* 色彩 */
  --c-night: #0B2545;
  --c-night-deep: #071A31;
  --c-deep: #14375E;
  --c-deep-lift: #1D4A76;
  --c-meadow: #2E7D62;
  --c-orange: #F28C28;
  --c-vermilion: #C1352B;
  --c-yellow: #FFD23F;
  --c-ice: #4FA3E3;
  --c-stone: #8C9199;
  --c-clay: #A9603F;
  --c-cream: #F4F0E7;

  /* 语义色 */
  --ink: #EDF3F9;
  --ink-2: #B6C6D8;
  --ink-3: #8C9199;
  --line: #24557F;
  --line-soft: rgba(244, 240, 231, .14);

  /* 框架尺寸 */
  --rail-w: 212px;
  --bar-h: 68px;
  --gutter: clamp(16px, 3.4vw, 44px);
  --wrap-max: 1240px;

  /* 形状 */
  --radius: 2px;
  --shadow-brut: 6px 6px 0 var(--c-night-deep);
  --shadow-lift: 5px 5px 0 rgba(7, 26, 49, .55);

  /* 字体 */
  --font-head: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system,
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system,
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo,
    Consolas, "Liberation Mono", "Courier New", monospace;
}

/* ---------- 3. 焦点与可访问性工具 ---------- */
:focus-visible {
  outline: 3px solid var(--c-yellow);
  outline-offset: 3px;
  border-radius: 1px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 10px; left: 10px;
  z-index: 300;
  padding: 12px 20px;
  background: var(--c-yellow);
  color: var(--c-night-deep);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .06em;
  text-decoration: none;
  border: 3px solid var(--c-night-deep);
  box-shadow: 4px 4px 0 var(--c-clay);
  transform: translateY(-220%);
  transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); color: var(--c-night-deep); }

/* ---------- 4. 页面进度条 ---------- */
.progress-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 4px;
  z-index: 200;
  pointer-events: none;
  background: rgba(7, 26, 49, .55);
}
.progress-bar__fill {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--c-meadow), var(--c-ice) 46%, var(--c-yellow));
}

/* ---------- 5. 页头：L 形框架 ---------- */
.site-header { position: relative; z-index: 90; }

.site-header__top {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--bar-h);
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 var(--gutter);
  background: var(--c-night);
  border-bottom: 3px solid var(--c-clay);
  box-shadow: 0 8px 0 rgba(7, 26, 49, .45);
  z-index: 90;
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
  flex: 0 0 auto;
}
.brand:hover { color: inherit; }

.brand__mark {
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  background: var(--c-yellow);
  color: var(--c-night-deep);
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 900;
  border: 2px solid var(--c-night-deep);
  box-shadow: 3px 3px 0 var(--c-clay);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.18;
  min-width: 0;
}
.brand__name {
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .06em;
  color: var(--c-cream);
}
.brand__line {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink-3);
  white-space: nowrap;
}

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

/* ---------- 6. 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 2px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease,
              background-color .18s ease, color .18s ease, border-color .18s ease;
}
.btn--sm { padding: 9px 14px; font-size: 13px; }

.btn--solid {
  background: var(--c-orange);
  color: var(--c-night-deep);
  border-color: var(--c-night-deep);
  box-shadow: 4px 4px 0 var(--c-night-deep);
}
.btn--solid:hover {
  background: var(--c-yellow);
  color: var(--c-night-deep);
}
.btn--solid:active { transform: translate(2px, 2px); box-shadow: none; }

.btn--ghost {
  background: transparent;
  color: var(--c-cream);
  border-color: var(--line);
}
.btn--ghost:hover {
  background: rgba(46, 125, 98, .2);
  border-color: var(--c-meadow);
  color: var(--c-cream);
}
.btn--ghost:active { transform: translate(2px, 2px); }

/* ---------- 7. 移动端菜单按钮 ---------- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding: 9px 14px;
  background: transparent;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  color: var(--c-cream);
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  cursor: pointer;
  transition: border-color .18s ease, background-color .18s ease;
}
.nav-toggle:hover { border-color: var(--c-meadow); background: rgba(46, 125, 98, .16); }
.nav-toggle__text { line-height: 1; }

.nav-toggle__bars {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 20px;
  flex: 0 0 auto;
}
.nav-toggle__bars i {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--c-yellow);
  transition: transform .2s ease, opacity .2s ease;
}

/* ---------- 8. 左侧导航导轨 ---------- */
.site-nav {
  position: fixed;
  top: var(--bar-h);
  left: 0;
  bottom: 0;
  width: var(--rail-w);
  display: flex;
  flex-direction: column;
  padding: 22px 0 18px;
  background: var(--c-deep);
  border-right: 3px solid var(--c-clay);
  overflow-y: auto;
  overscroll-behavior: contain;
  z-index: 88;
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.site-nav__item { margin: 0; }

.site-nav__link {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 13px 18px 13px 19px;
  border-left: 5px solid transparent;
  color: var(--ink-2);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  text-decoration: none;
  transition: color .18s ease, background-color .18s ease, border-color .18s ease;
}
.site-nav__link:hover {
  color: var(--c-cream);
  background: rgba(79, 163, 227, .14);
  border-left-color: var(--c-ice);
}

.site-nav__index {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  color: currentColor;
  opacity: .55;
  flex: 0 0 auto;
}
.site-nav__label { min-width: 0; }

.site-nav__link[aria-current="page"] {
  background: var(--c-yellow);
  color: var(--c-night-deep);
  border-left-color: var(--c-clay);
  font-weight: 800;
}
.site-nav__link[aria-current="page"] .site-nav__index { opacity: .7; }

.site-nav__cta {
  display: none;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 0;
}
.site-nav__cta .btn { width: 100%; }

.site-nav__foot {
  margin: auto 0 0;
  padding: 18px 18px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--ink-3);
}

.site-nav__dot {
  width: 9px; height: 9px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--c-meadow);
  box-shadow: 0 0 0 4px rgba(46, 125, 98, .22);
}

/* 遮罩 */
.site-scrim {
  position: fixed;
  top: var(--bar-h);
  right: 0; bottom: 0; left: 0;
  background: rgba(7, 26, 49, .72);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility 0s linear .25s;
  z-index: 80;
}
.site-scrim[data-open] {
  opacity: 1;
  visibility: visible;
  transition: opacity .25s ease, visibility 0s linear 0s;
}

/* ---------- 9. 布局容器与网格 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wrap--wide { max-width: 1480px; }
.wrap--narrow { max-width: 860px; }

.grid {
  display: grid;
  gap: clamp(16px, 2.2vw, 28px);
}
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(228px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(186px, 1fr)); }

.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 44px);
}

.band {
  display: flex;
  width: 100%;
  height: 6px;
  margin: 0;
}
.band > span { display: block; height: 100%; }
.band > span:nth-child(1) { background: var(--c-meadow); flex: 6; }
.band > span:nth-child(2) { background: var(--c-orange); flex: 2; }
.band > span:nth-child(3) { background: var(--c-vermilion); flex: 1; }
.band > span:nth-child(4) { background: var(--c-yellow); flex: 1; }

/* ---------- 10. 章节体系 ---------- */
.section {
  position: relative;
  padding-block: clamp(46px, 7vw, 104px);
}
.section--tight { padding-block: clamp(26px, 4vw, 56px); }

.section__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: clamp(22px, 3vw, 44px);
}

.section__index {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(46px, 7vw, 104px);
  font-weight: 900;
  line-height: .84;
  letter-spacing: -0.05em;
  font-variant-numeric: tabular-nums;
  color: var(--c-clay);
}
@supports (-webkit-text-stroke: 1px red) {
  .section__index {
    color: transparent;
    -webkit-text-stroke: 2px var(--c-clay);
  }
}

.section__heading { min-width: 0; }

.section__title {
  margin: 0;
  font-size: clamp(28px, 4vw, 52px);
  line-height: 1.05;
  color: var(--c-cream);
  max-width: 22ch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 3px;
  background: var(--c-meadow);
  flex: 0 0 auto;
}

.lede {
  margin: 0;
  font-size: clamp(16px, 1.5vw, 18.5px);
  line-height: 1.8;
  color: var(--ink-2);
  max-width: 62ch;
}

.prose { color: var(--ink-2); }
.prose p { max-width: 68ch; }
.prose h3 { margin-top: 1.6em; font-size: clamp(19px, 2vw, 24px); }
.prose ul, .prose ol { max-width: 68ch; }
.prose a { color: var(--c-yellow); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 11. 内页页头与面包屑 ---------- */
.page-head {
  position: relative;
  padding-block: clamp(34px, 6vw, 78px) clamp(20px, 3vw, 38px);
  border-bottom: 3px solid var(--c-clay);
}
.page-head__title {
  margin: 0 0 14px;
  font-size: clamp(34px, 5.4vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--c-cream);
  max-width: 20ch;
}
.page-head__lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15.5px, 1.5vw, 18px);
  color: var(--ink-2);
}

.breadcrumbs { padding-block: 20px 0; }
.breadcrumbs__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-3);
}
.breadcrumbs__item { display: inline-flex; align-items: center; }
.breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--c-clay);
}
.breadcrumbs a {
  color: var(--ink-2);
  text-decoration: none;
}
.breadcrumbs a:hover { color: var(--c-yellow); }

/* ---------- 12. 卡片与阅读面板 ---------- */
.card {
  position: relative;
  background: var(--c-deep);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(18px, 2.4vw, 28px);
  box-shadow: var(--shadow-lift);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.card:hover {
  transform: translateY(-2px);
  border-color: var(--c-ice);
  box-shadow: 7px 8px 0 rgba(7, 26, 49, .7);
}
.card--accent { border-left: 6px solid var(--c-orange); }
.card--quiet { background: rgba(20, 55, 94, .55); box-shadow: none; }

.readable {
  background: var(--c-cream);
  color: #16283C;
  padding: clamp(24px, 4vw, 52px);
  border: 3px solid var(--c-night-deep);
  box-shadow: 8px 8px 0 var(--c-deep);
}
.readable h1,
.readable h2,
.readable h3 { color: #0B2545; }
.readable a { color: #A9603F; }

/* ---------- 13. 图片容器基础规则 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--c-deep);
  border: 3px solid var(--c-night-deep);
  box-shadow: 7px 7px 0 var(--c-deep);
}
.media > img,
.media > picture,
.media > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.media--wide { aspect-ratio: 21 / 9; }
.media--square { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 3 / 4; }
.media--soft { border-color: var(--line); box-shadow: none; }

.media--placeholder {
  display: grid;
  place-items: center;
  background-color: var(--c-deep);
  background-image: repeating-linear-gradient(
    -45deg,
    rgba(79, 163, 227, .13) 0 14px,
    rgba(79, 163, 227, 0) 14px 28px
  );
}
.media--placeholder::after {
  content: attr(data-label);
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--ink-3);
  border: 1px solid var(--line);
}

.media__caption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-3);
}

/* ---------- 14. Chips 筛选 ---------- */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip {
  appearance: none;
  padding: 8px 15px;
  background: transparent;
  border: 2px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color .18s ease, color .18s ease, border-color .18s ease;
}
.chip:hover {
  border-color: var(--c-ice);
  color: var(--c-cream);
}
.chip[aria-pressed="true"] {
  background: var(--c-ice);
  border-color: var(--c-ice);
  color: var(--c-night-deep);
  font-weight: 700;
}

/* ---------- 15. 可展开内容组 ---------- */
.disclosure {
  margin: 0 0 12px;
  border: 2px solid var(--line);
  border-left: 6px solid var(--line);
  background: rgba(20, 55, 94, .45);
  transition: border-left-color .22s ease, background-color .22s ease;
}
.disclosure[open] {
  border-left-color: var(--c-vermilion);
  background: rgba(20, 55, 94, .82);
}

.disclosure__summary {
  list-style: none;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 20px;
  cursor: pointer;
  font-family: var(--font-head);
  font-size: clamp(15px, 1.5vw, 17px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-cream);
}
.disclosure__summary::-webkit-details-marker { display: none; }
.disclosure__summary::marker { content: ""; }

.disclosure__sign {
  position: relative;
  flex: 0 0 auto;
  width: 26px; height: 26px;
  margin-top: 2px;
  border: 2px solid var(--c-meadow);
  display: grid;
  place-items: center;
  transition: border-color .22s ease;
}
.disclosure__sign::before,
.disclosure__sign::after {
  content: "";
  position: absolute;
  background: var(--c-cream);
  transition: transform .22s ease, opacity .22s ease;
}
.disclosure__sign::before { width: 12px; height: 2px; }
.disclosure__sign::after { width: 2px; height: 12px; }
.disclosure[open] .disclosure__sign { border-color: var(--c-vermilion); }
.disclosure[open] .disclosure__sign::after { transform: scaleY(0); opacity: 0; }

.disclosure__panel {
  padding: 0 20px 20px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-2);
}
.disclosure__panel p:last-child { margin-bottom: 0; }

/* ---------- 16. 状态标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  line-height: 1.4;
}
.tag--home { color: var(--c-ice); }
.tag--away { color: var(--c-orange); }
.tag--change { color: var(--c-vermilion); }
.tag--live { color: var(--c-orange); }
.tag--live::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ---------- 17. 显现动效 ---------- */
.js-ready .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .5s ease, transform .5s ease;
}
.js-ready .reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 18. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(64px, 9vw, 140px);
  background: var(--c-night-deep);
  border-top: 3px solid var(--c-night-deep);
  color: var(--ink-2);
}

.site-footer__crest {
  display: flex;
  height: 8px;
}
.site-footer__crest span { display: block; height: 100%; }
.site-footer__crest span:nth-child(1) { background: var(--c-meadow); flex: 5; }
.site-footer__crest span:nth-child(2) { background: var(--c-orange); flex: 2; }
.site-footer__crest span:nth-child(3) { background: var(--c-vermilion); flex: 1.4; }
.site-footer__crest span:nth-child(4) { background: var(--c-yellow); flex: 1; }

.site-footer__inner {
  max-width: var(--wrap-max);
  margin-inline: auto;
  padding: clamp(38px, 5.5vw, 70px) var(--gutter) clamp(26px, 4vw, 46px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 54px);
}

.site-footer__lead { min-width: 0; }
.site-footer__wordmark {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--c-cream);
}
.site-footer__line {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-clay);
}
.site-footer__note {
  margin: 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-3);
}

.site-footer__nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 26px 32px;
}

.site-footer__col { min-width: 0; }

.site-footer__title {
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--line);
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--c-cream);
}

.site-footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-footer__list li { margin: 0 0 9px; }
.site-footer__list li:last-child { margin-bottom: 0; }
.site-footer__list a {
  position: relative;
  display: inline-block;
  padding-left: 14px;
  color: var(--ink-2);
  font-size: 14.5px;
  text-decoration: none;
  transition: color .18s ease;
}
.site-footer__list a::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px; height: 6px;
  background: var(--c-meadow);
  transition: background-color .18s ease, transform .18s ease;
}
.site-footer__list a:hover { color: var(--c-yellow); }
.site-footer__list a:hover::before { background: var(--c-yellow); transform: translateY(-1px); }

.site-footer__contact { min-width: 0; }

.site-footer__pairs {
  margin: 0 0 14px;
  padding: 0;
}
.site-footer__pair {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 10px;
  margin-bottom: 9px;
  font-size: 14px;
  line-height: 1.65;
}
.site-footer__pair dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-clay);
  padding-top: 2px;
}
.site-footer__pair dd {
  margin: 0;
  color: var(--ink);
  word-break: break-word;
}

.site-footer__fine {
  margin: 0;
  max-width: 46ch;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ink-3);
}

.site-footer__base {
  max-width: var(--wrap-max);
  margin-inline: auto;
  padding: 18px var(--gutter) 30px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 24px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-3);
}
.site-footer__base p { margin: 0; }
.site-footer__links { display: inline-flex; flex-wrap: wrap; gap: 8px; }
.site-footer__links a {
  color: var(--ink-3);
  text-decoration: none;
}
.site-footer__links a:hover { color: var(--c-yellow); }

/* =========================================================
   19. 响应式
   ========================================================= */
@media (min-width: 760px) {
  .section__head {
    grid-template-columns: minmax(118px, 2fr) minmax(0, 8fr);
    gap: clamp(20px, 3vw, 46px);
    align-items: start;
  }
  .split { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); }
  .split--reverse { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); }
  .site-footer__inner {
    grid-template-columns: minmax(210px, 1fr) minmax(0, 1.7fr);
  }
}

@media (min-width: 960px) {
  body { padding-left: var(--rail-w); }
  .nav-toggle { display: none; }
  .site-scrim { display: none; }
  .site-nav { transform: none; }
  .site-nav__cta { display: none; }
}

@media (min-width: 1080px) {
  .site-footer__inner {
    grid-template-columns: minmax(230px, 1.05fr) minmax(0, 1.6fr) minmax(250px, 1.1fr);
  }
}

@media (max-width: 959px) {
  .site-nav {
    width: min(340px, 86vw);
    transform: translateX(-104%);
    transition: transform .3s cubic-bezier(.4, 0, .2, 1);
    box-shadow: 14px 0 0 rgba(7, 26, 49, .55);
  }
  .site-nav[data-open] { transform: translateX(0); }
  .site-nav__cta { display: flex; }
  .nav-toggle { display: inline-flex; }
  body.nav-open { overflow: hidden; }
}

@media (max-width: 719px) {
  .site-header__actions { display: none; }
}

@media (max-width: 559px) {
  .brand__line { display: none; }
  .brand__name { font-size: 16px; }
  :root { --bar-h: 62px; }
}

/* =========================================================
   20. 动效偏好
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    transition-delay: 0s !important;
  }

  .js-ready .reveal,
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
  .card:hover { transform: none; }
  .skip-link { transition: none; }
}