/* ============================================================
   BEPLAY看台 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 页头 / 页脚 / 基础组件
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root {
  /* 色彩 */
  --ink-900: #07130F;
  --ink-800: #0C1F19;
  --ink-700: #14302A;
  --moss-500: #1F5C4A;
  --cream-100: #F4EFE2;
  --cream-300: #DED5BF;
  --cyan-400: #35E8D2;
  --orange-500: #FF6B2C;
  --amber-300: #FFC24B;
  --gray-400: #8FA3A0;
  --field-white: #F7FBF8;

  /* 字号阶梯 12 / 14 / 16 / 20 / 28 / 40 / 64 / 96 */
  --f-12: 12px;
  --f-14: 14px;
  --f-16: 16px;
  --f-20: 20px;
  --f-28: 28px;
  --f-40: 40px;
  --f-64: 64px;
  --f-96: 96px;

  /* 字体族（全部本地回退，无远程字体） */
  --font-display: "Archivo Black", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* 结构 */
  --shell: 1280px;
  --gutter: clamp(16px, 3.2vw, 26px);
  --notch: 14px;
  --hairline: rgba(31, 92, 74, 0.45);
  --hairline-soft: rgba(31, 92, 74, 0.28);
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--ink-900);
  color: var(--field-white);
  font-family: var(--font-body);
  font-size: var(--f-16);
  line-height: 1.62;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
}

/* ---------- 3. 工具类与中文排版 ---------- */
.u-sr-only {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.u-mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(32px, 5vw, 64px); }

.band {
  position: relative;
  padding-block: clamp(36px, 6vw, 68px);
  background: var(--ink-800);
}
.band--cream {
  background: var(--cream-100);
  color: var(--ink-900);
}
.band--cream .eyebrow,
.band--cream .u-mono { color: var(--moss-500); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--f-12);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan-400);
}

.rule {
  display: block;
  height: 1px;
  border: 0;
  background: var(--hairline);
  margin-block: 20px;
}

/* ---------- 4. 栅格 ---------- */
.grid { display: grid; gap: var(--gutter); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--main { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); }

/* ---------- 5. 形状语言 ---------- */
.notch {
  -webkit-clip-path: polygon(0 0, calc(100% - var(--notch)) 0, 100% var(--notch), 100% 100%, var(--notch) 100%, 0 calc(100% - var(--notch)));
  clip-path: polygon(0 0, calc(100% - var(--notch)) 0, 100% var(--notch), 100% 100%, var(--notch) 100%, 0 calc(100% - var(--notch)));
}

.hatch {
  background-image: repeating-linear-gradient(
    102deg,
    rgba(31, 92, 74, 0.55) 0,
    rgba(31, 92, 74, 0.55) 1px,
    transparent 1px,
    transparent 9px
  );
}

/* ---------- 6. 按钮与链接 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  font-family: var(--font-mono);
  font-size: var(--f-12);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition: background 0.16s var(--ease), color 0.16s var(--ease),
              border-color 0.16s var(--ease), transform 0.12s var(--ease);
}
.btn:active { transform: scale(0.98); }

.btn--primary {
  background: var(--orange-500);
  border-color: var(--orange-500);
  color: var(--ink-900);
  font-weight: 700;
}
.btn--primary:hover { background: var(--cyan-400); border-color: var(--cyan-400); }

.btn--ghost {
  background: transparent;
  border-color: rgba(31, 92, 74, 0.9);
  color: var(--field-white);
}
.btn--ghost:hover { border-color: var(--cyan-400); color: var(--cyan-400); }

.btn--snug { min-height: 38px; padding: 0 14px; font-size: 11px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--f-12);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan-400);
  transition: gap 0.16s var(--ease), color 0.16s var(--ease);
}
.link-arrow::after { content: "\2192"; font-size: 13px; }
.link-arrow:hover { gap: 14px; color: var(--amber-300); }

/* ---------- 7. 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-400);
}
.crumbs a:hover { color: var(--cyan-400); }
.crumbs__sep { color: var(--moss-500); }

/* ---------- 8. 卡片 / 标签 / 筹码 ---------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  background: var(--ink-800);
  border: 1px solid var(--hairline);
}

.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hairline-soft);
}

.card__tag { color: var(--gray-400); }
.card__title { font-size: var(--f-20); line-height: 1.24; font-weight: 700; }
.card__body { font-size: var(--f-14); line-height: 1.5; color: var(--gray-400); }

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan-400);
}
.tag--amber { color: var(--amber-300); }
.tag--orange { color: var(--orange-500); }

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 34px;
  padding: 6px 12px;
  border: 1px solid rgba(31, 92, 74, 0.8);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-400);
  transition: color 0.16s var(--ease), background 0.16s var(--ease),
              border-color 0.16s var(--ease);
}
.chip:hover { color: var(--field-white); border-color: var(--moss-500); }
.chip[aria-pressed="true"],
.chip.is-active {
  background: var(--cyan-400);
  border-color: var(--cyan-400);
  color: var(--ink-900);
}

/* ---------- 9. 数据指标 ---------- */
.stat { display: block; }
.stat__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--field-white);
}
.stat__label {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-400);
}

/* ---------- 10. 可展开对比组 ---------- */
.expand {
  background: var(--ink-800);
  border: 1px solid var(--hairline);
}

.expand__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  min-height: 52px;
  padding: 14px 18px;
  text-align: left;
  font-size: 15px;
  line-height: 1.4;
  color: var(--field-white);
}

.expand__sign {
  flex: 0 0 auto;
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--cyan-400);
  border: 1px solid currentColor;
  transition: transform 0.18s var(--ease), color 0.18s var(--ease);
}
.expand__toggle:hover .expand__sign { color: var(--amber-300); }
[data-expand][data-open] .expand__sign {
  transform: rotate(45deg);
  color: var(--orange-500);
}

.expand__panel { display: none; padding: 0 18px 18px; }
[data-expand][data-open] .expand__panel {
  display: block;
  animation: bepPanelIn 0.2s var(--ease) both;
}

@keyframes bepPanelIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 11. 图片容器（共享基础规则） ---------- */
.figure {
  position: relative;
  overflow: hidden;
  background: var(--ink-700);
  border: 1px solid var(--hairline-soft);
}
.figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.82);
}
.figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(158deg, rgba(7, 19, 15, 0.12) 0%, rgba(7, 19, 15, 0.74) 100%);
}
.figure--wide { aspect-ratio: 16 / 6; }
.figure--4x3 { aspect-ratio: 4 / 3; }
.figure--1x1 { aspect-ratio: 1 / 1; }

.figure__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cream-100);
  background: rgba(7, 19, 15, 0.72);
}

/* ---------- 12. 滚动显现 ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.34s var(--ease), transform 0.34s var(--ease);
}
html.js [data-reveal][data-revealed] {
  opacity: 1;
  transform: none;
}

/* ============================================================
   13. 页头
   ============================================================ */
.skip-link {
  position: absolute;
  left: 16px;
  top: -72px;
  z-index: 200;
  padding: 12px 18px;
  background: var(--cyan-400);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: var(--f-12);
  font-weight: 700;
  letter-spacing: 0.12em;
  transition: top 0.18s var(--ease);
}
.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--ink-900);
  border-bottom: 1px solid var(--hairline);
  box-shadow: 0 1px 0 rgba(53, 232, 210, 0.06);
}

/* 刊头 */
.masthead { border-bottom: 1px solid var(--hairline-soft); }

.masthead__inner {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 14px var(--gutter);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  transition: padding 0.22s var(--ease);
}

.masthead__side { display: flex; align-items: center; gap: 10px; min-width: 0; }
.masthead__side--end { justify-content: flex-end; }

/* 品牌 */
.brand {
  display: grid;
  justify-items: center;
  gap: 3px;
  text-align: center;
}
.brand__word { display: flex; align-items: baseline; gap: 8px; }
.brand__mark {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 0.94;
  letter-spacing: -0.03em;
  color: var(--field-white);
  transition: font-size 0.22s var(--ease);
}
.brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(13px, 1.6vw, 18px);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
}
.brand__line {
  display: block;
  max-height: 18px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--gray-400);
  transition: max-height 0.22s var(--ease), opacity 0.18s var(--ease);
}

/* 联赛索引开关 */
.index-toggle {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 13px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-400);
  background: var(--ink-800);
  border: 1px solid rgba(31, 92, 74, 0.85);
  -webkit-clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  transition: color 0.16s var(--ease), background 0.16s var(--ease), border-color 0.16s var(--ease);
}
.index-toggle:hover { color: var(--cyan-400); border-color: var(--cyan-400); }
.index-toggle[aria-expanded="true"] {
  background: var(--cyan-400);
  border-color: var(--cyan-400);
  color: var(--ink-900);
}

.index-toggle__bars,
.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  width: 16px;
  height: 12px;
}
.index-toggle__bars i,
.nav-toggle__bars i {
  display: block;
  height: 2px;
  background: currentColor;
}
.index-toggle__bars i:nth-child(2),
.nav-toggle__bars i:nth-child(2) { width: 68%; }
.index-toggle__bars i:nth-child(3),
.nav-toggle__bars i:nth-child(3) { width: 42%; }

/* 联赛代号轨 */
.league-rail {
  overflow: hidden;
  max-height: 60px;
  background: var(--ink-800);
  border-bottom: 1px solid var(--hairline-soft);
  transition: max-height 0.24s var(--ease);
}
.site-header[data-rail-collapsed] .league-rail {
  max-height: 0;
  border-bottom-color: transparent;
}

.league-rail__track {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.league-rail__track::-webkit-scrollbar { display: none; }

.league-rail__label {
  flex: 0 0 auto;
  padding-right: 14px;
  margin-right: 6px;
  border-right: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber-300);
  white-space: nowrap;
}

.league-code {
  flex: 0 0 auto;
  padding: 5px 9px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--gray-400);
  border: 1px solid var(--hairline);
  -webkit-clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease);
}
.league-code:hover { color: var(--field-white); border-color: var(--moss-500); }

/* 主导航 */
.site-nav {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2px;
}

.site-nav__list a {
  position: relative;
  display: inline-block;
  padding: 14px 16px;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gray-400);
  transition: color 0.16s var(--ease);
}
.site-nav__list a::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 9px;
  height: 2px;
  background: var(--cyan-400);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.18s var(--ease);
}
.site-nav__list a:hover { color: var(--field-white); }
.site-nav__list a:hover::after { transform: scaleX(1); }
.site-nav__list a[aria-current="page"] { color: var(--field-white); }
.site-nav__list a[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--orange-500);
}

.nav-toggle { display: none; }

/* 滚动收紧 */
.site-header[data-condensed] .masthead__inner { padding-block: 6px; }
.site-header[data-condensed] .brand__mark { font-size: clamp(17px, 2vw, 22px); }
.site-header[data-condensed] .brand__line { max-height: 0; opacity: 0; }
.site-header[data-condensed] .site-nav__list a { padding-block: 10px; }

/* ============================================================
   14. 页脚
   ============================================================ */
.site-footer {
  margin-top: clamp(48px, 7vw, 88px);
  background: var(--ink-800);
  border-top: 1px solid var(--hairline);
  color: var(--gray-400);
}

.site-footer__grid {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(36px, 5vw, 56px) var(--gutter) 30px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: 30px;
}

.site-footer__col { min-width: 0; }
.site-footer__col + .site-footer__col {
  padding-left: 26px;
  border-left: 1px solid var(--hairline-soft);
}
.site-footer__col:nth-child(2) { padding-top: 16px; }
.site-footer__col:nth-child(3) { padding-top: 34px; }
.site-footer__col:nth-child(4) { padding-top: 4px; }

.footer-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--field-white);
}
.footer-brand span {
  font-size: 0.56em;
  letter-spacing: 0.08em;
  color: var(--cyan-400);
}

.footer-claim {
  margin-top: 14px;
  max-width: 26em;
  font-size: var(--f-14);
  line-height: 1.6;
  color: var(--gray-400);
}

.footer-version {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--moss-500);
}
.footer-version__dot {
  width: 6px;
  height: 6px;
  background: var(--cyan-400);
  animation: bepPulse 2.4s var(--ease) infinite;
}

@keyframes bepPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.28; }
}

.footer-heading {
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-400);
}

.footer-list li + li { margin-top: 10px; }
.footer-list a {
  display: inline-block;
  font-size: var(--f-14);
  color: var(--cream-300);
  transition: color 0.16s var(--ease), padding-left 0.16s var(--ease);
}
.footer-list a:hover { color: var(--cyan-400); padding-left: 5px; }

.footer-contact { display: grid; gap: 12px; }
.footer-contact__row { display: grid; gap: 2px; }
.footer-contact dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--moss-500);
}
.footer-contact dd {
  font-size: 13px;
  line-height: 1.5;
  color: var(--cream-300);
  overflow-wrap: anywhere;
}

.site-footer__base {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 18px var(--gutter) 30px;
  border-top: 1px solid var(--hairline-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gray-400);
}
.footer-copy { color: var(--gray-400); }
.footer-legal { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-legal a { color: var(--cream-300); }
.footer-legal a:hover { color: var(--cyan-400); }
.footer-stamp { color: var(--moss-500); }

/* ============================================================
   15. 响应式
   ============================================================ */
@media (max-width: 1080px) {
  .site-footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .site-footer__col--brand { grid-column: 1 / -1; padding-bottom: 4px; }
  .site-footer__col + .site-footer__col { padding-left: 20px; }
  .site-footer__col:nth-child(2),
  .site-footer__col:nth-child(3),
  .site-footer__col:nth-child(4) { padding-top: 0; }
  .grid--main { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 900px) {
  .masthead__inner {
    grid-template-columns: auto 1fr auto;
    gap: 12px;
    padding-block: 10px;
  }
  .brand { justify-items: start; text-align: left; }
  .brand__line { letter-spacing: 0.18em; }

  .site-nav { padding-inline: var(--gutter); }

  .nav-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    min-height: 46px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gray-400);
  }
  .nav-toggle:hover { color: var(--field-white); }
  .site-nav[data-open] .nav-toggle { color: var(--cyan-400); }
  .site-nav[data-open] .nav-toggle__bars i:nth-child(1) { transform: translateY(5px) rotate(45deg); }
  .site-nav[data-open] .nav-toggle__bars i:nth-child(2) { opacity: 0; }
  .site-nav[data-open] .nav-toggle__bars i:nth-child(3) {
    width: 100%;
    transform: translateY(-5px) rotate(-45deg);
  }
  .nav-toggle__bars i { transition: transform 0.18s var(--ease), opacity 0.18s var(--ease), width 0.18s var(--ease); }

  .site-nav__list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-bottom: 10px;
    border-top: 1px solid var(--hairline-soft);
  }
  .site-nav[data-open] .site-nav__list { display: flex; }
  .site-nav__list a {
    display: block;
    padding: 13px 2px;
    border-bottom: 1px dashed var(--hairline-soft);
  }
  .site-nav__list a::after {
    left: 0;
    right: auto;
    width: 26px;
    bottom: 8px;
  }

  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
  .site-footer__col--brand { grid-column: 1 / -1; }
  .site-footer__col + .site-footer__col { padding-left: 0; border-left: 0; }
}

@media (max-width: 640px) {
  .brand__mark { font-size: 19px; }
  .brand__name { font-size: 12px; }
  .brand__line { display: none; }
  .index-toggle__text { display: none; }
  .index-toggle { padding-inline: 11px; }
  .btn--snug { padding-inline: 11px; letter-spacing: 0.1em; }

  .grid--2,
  .grid--3 { grid-template-columns: minmax(0, 1fr); }
  .site-footer__grid { grid-template-columns: minmax(0, 1fr); }
  .site-footer__base { flex-direction: column; align-items: flex-start; gap: 10px; }
  .figure--wide { aspect-ratio: 16 / 9; }
}

/* ============================================================
   16. 动效偏好
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js [data-reveal] { opacity: 1; transform: none; transition: none; }
  [data-expand][data-open] .expand__panel { animation: none; }
  .footer-version__dot { animation: none; }
  .site-header,
  .masthead__inner,
  .brand__mark,
  .brand__line,
  .league-rail,
  .skip-link,
  .btn,
  .chip,
  .link-arrow,
  .expand__sign,
  .footer-list a { transition: none; }
}