/* ==========================================================================
   杏彩体育主站 · /assets/site.css
   共享外壳：重置 / 变量 / 中文排版 / 页头 / 页脚 / 通用组件 / 响应式
   ========================================================================== */

/* ---------- 1. 变量 ---------- */
:root {
  /* 色彩体系 */
  --orange-500: #FF6A1A;
  --orange-700: #C6420A;
  --sand-100: #FFE8D8;
  --navy-900: #0A1A33;
  --navy-700: #153059;
  --lime-400: #B6FF3C;
  --lime-800: #3F6B00;
  --paper-50: #FFF8F3;
  --paper-200: #F2EDE6;
  --ink-900: #12161C;
  --slate-400: #6E7C93;
  --slate-600: #8E9BB3;
  --line-200: #E4E8EF;
  --white: #FFFFFF;
  --on-orange: #0A1A33;

  /* 字体 */
  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-editorial: "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* 结构 */
  --shell-max: 1280px;
  --gutter: clamp(20px, 4vw, 56px);
  --header-h: 72px;
  --radius: 2px;
  --shadow-micro: 0 1px 2px rgba(10, 26, 51, .06), 0 10px 28px -20px rgba(10, 26, 51, .38);

  /* 动效 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur: 240ms;
}

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

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

body {
  margin: 0;
  background: var(--paper-50);
  color: var(--ink-900);
  font-family: var(--font-body);
  font-size: clamp(16px, 1.05vw, 17px);
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; }
img, svg, video { max-width: 100%; display: block; }
button { font: inherit; color: inherit; }
a { color: inherit; }

:where(a, button, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--orange-500);
  outline-offset: 3px;
  border-radius: var(--radius);
}

::selection { background: var(--orange-500); color: var(--on-orange); }

/* ---------- 3. 中文排版基础 ---------- */
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .01em;
}

.display-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(44px, 9vw, 120px);
  line-height: 1.02;
  letter-spacing: -.035em;
  margin: 0;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 52px);
  line-height: 1.12;
  letter-spacing: -.025em;
  margin: 0;
}

.lede {
  font-family: var(--font-editorial);
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.7;
  color: var(--navy-700);
  max-width: 640px;
}

.exhibit-label {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--slate-400);
}
.exhibit-label__num { color: var(--orange-500); font-weight: 700; }

.prose {
  max-width: 700px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink-900);
}
.prose h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.25;
  letter-spacing: -.02em;
  margin: 2.2em 0 .6em;
}
.prose h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 22px);
  margin: 1.8em 0 .5em;
}
.prose p { margin: 0 0 1.2em; }
.prose ul, .prose ol { margin: 0 0 1.2em; padding-left: 1.3em; }
.prose li { margin: 0 0 .5em; }
.prose a { color: var(--orange-700); text-underline-offset: 3px; }

/* ---------- 4. 骨架容器 ---------- */
.container {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

#main-content { display: block; padding-top: var(--header-h); }
html.has-hero #main-content { padding-top: 0; }

.section { padding-block: clamp(48px, 7vw, 104px); }
.section__head {
  display: grid;
  gap: 14px;
  max-width: 860px;
  margin-bottom: clamp(28px, 4vw, 56px);
}

.rule { height: 1px; border: 0; margin: 0; background: var(--line-200); }

.stack { display: grid; gap: clamp(14px, 1.8vw, 22px); align-content: start; }

/* ---------- 5. 网格 ---------- */
.grid { display: grid; gap: clamp(20px, 2.6vw, 36px); }
.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--7-5 { grid-template-columns: 7fr 5fr; }
.grid--5-7 { grid-template-columns: 5fr 7fr; }

@media (max-width: 900px) {
  .grid--2, .grid--3, .grid--4, .grid--7-5, .grid--5-7 {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: transparent;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: .02em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease, transform 180ms var(--ease);
}
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--orange-500); color: var(--on-orange); }
.btn--primary:hover { background: var(--orange-700); color: var(--white); }

.btn--ghost {
  background: transparent;
  color: var(--navy-900);
  border-color: var(--line-200);
}
.btn--ghost:hover { border-color: var(--navy-900); background: rgba(10, 26, 51, .04); }

.btn--onDark {
  background: transparent;
  color: var(--paper-50);
  border-color: rgba(255, 248, 243, .34);
}
.btn--onDark:hover { background: rgba(255, 248, 243, .12); }

/* ---------- 7. 标签与状态 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--line-200);
  border-radius: 999px;
  background: var(--sand-100);
  color: var(--orange-700);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: .06em;
}
.tag--live {
  background: rgba(182, 255, 60, .18);
  border-color: rgba(63, 107, 0, .28);
  color: var(--lime-800);
}
.tag--season {
  background: var(--paper-200);
  border-color: var(--line-200);
  color: var(--navy-900);
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime-400);
  box-shadow: 0 0 0 3px rgba(182, 255, 60, .18);
  vertical-align: middle;
}

/* ---------- 8. 数据块 ---------- */
.data-block {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  border-radius: var(--radius);
  border-top: 2px solid var(--orange-500);
  background: var(--navy-900);
  color: var(--paper-50);
  box-shadow: var(--shadow-micro);
}
.data-block__value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1;
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
}
.data-block__label {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--slate-600);
}
.data-block--lime .data-block__value { color: var(--lime-400); }

/* ---------- 9. 时间轴 ---------- */
.timeline {
  display: flex;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}
.timeline__item {
  position: relative;
  flex: 1 0 auto;
  min-width: 128px;
  padding: 26px 18px 0 0;
  border-top: 1px solid var(--line-200);
}
.timeline__item[data-state="current"] { border-top: 2px solid var(--orange-500); }
.timeline__node {
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--line-200);
}
.timeline__item[data-state="current"] .timeline__node {
  background: var(--orange-500);
  box-shadow: 0 0 0 4px rgba(255, 106, 26, .18);
}
.timeline__label {
  display: block;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
}
.timeline__meta {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate-400);
}

/* ---------- 10. 媒体容器 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--line-200);
  border-radius: var(--radius);
  background: var(--paper-200);
}
.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--3x4 { aspect-ratio: 3 / 4; }
.media > img,
.media > picture > img,
.media > svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--plain { border: 0; background: none; }
.media__tag { position: absolute; top: 14px; left: 14px; z-index: 2; }
.media__caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-editorial);
  font-size: 14px;
  line-height: 1.6;
  color: var(--slate-400);
}

/* ---------- 11. 标签页与折叠面板 ---------- */
.tabs__list {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--line-200);
  overflow-x: auto;
}
.tabs__tab {
  padding: 12px 18px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  color: var(--slate-400);
  white-space: nowrap;
  cursor: pointer;
  transition: color 160ms ease, border-color 160ms ease;
}
.tabs__tab:hover { color: var(--navy-900); }
.tabs__tab[aria-selected="true"] {
  color: var(--navy-900);
  border-bottom-color: var(--orange-500);
}
.tabs__panel { padding-top: clamp(20px, 3vw, 36px); }

.panel { border-top: 1px solid var(--line-200); }
.panel__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 20px 0;
  border: 0;
  background: none;
  text-align: left;
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--navy-900);
  cursor: pointer;
}
.panel__trigger::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  color: var(--orange-500);
  transition: transform 200ms var(--ease);
}
.panel__trigger[aria-expanded="true"]::after { transform: rotate(45deg); }
.panel__body {
  max-width: 720px;
  padding: 0 0 22px;
  color: var(--navy-700);
}

/* ---------- 12. 面包屑 ---------- */
.breadcrumb { padding-block: 18px; }
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--slate-400);
}
.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-200);
}
.breadcrumb a { color: var(--slate-400); text-decoration: none; }
.breadcrumb a:hover { color: var(--orange-700); }
.breadcrumb__item[aria-current="page"] { color: var(--navy-900); }

/* ---------- 13. 显现动效 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 400ms ease, transform 400ms var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- 14. 跳转链接 ---------- */
.skip-link {
  position: absolute;
  top: -72px;
  left: 16px;
  z-index: 200;
  padding: 12px 18px;
  border-radius: var(--radius);
  background: var(--orange-500);
  color: var(--on-orange);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition: top 160ms ease;
}
.skip-link:focus { top: 16px; }

/* ---------- 15. 页头 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 70;
  background: var(--navy-900);
  color: var(--paper-50);
  transition: background-color 200ms ease, box-shadow 200ms ease;
}
.site-header[data-overlay="true"][data-scrolled="false"] { background: transparent; }
.site-header[data-scrolled="true"] {
  box-shadow: 0 1px 0 rgba(255, 248, 243, .1), 0 14px 34px -26px rgba(10, 26, 51, .95);
}

.site-header__progress {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--orange-500);
  transform: scaleX(var(--scroll-progress, 0));
  transform-origin: 0 50%;
  opacity: 0;
  transition: opacity 200ms ease;
  z-index: 4;
}
.site-header[data-scrolled="true"] .site-header__progress { opacity: 1; }

.site-header__inner {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 38px);
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  text-decoration: none;
  color: inherit;
}
.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--orange-500);
  color: var(--on-orange);
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 900;
  line-height: 1;
}
.brand__text { display: flex; flex-direction: column; }
.brand__name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: .04em;
}
.brand__badge {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--lime-400);
}

.site-nav { margin-inline: auto; }
.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(4px, 1.4vw, 22px);
  list-style: none;
}
.site-nav__link {
  position: relative;
  display: block;
  padding: 8px 2px;
  color: rgba(255, 248, 243, .78);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: .02em;
  text-decoration: none;
  transition: color 160ms ease;
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--orange-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 200ms var(--ease);
}
.site-nav__link:hover { color: var(--white); }
.site-nav__link:hover::after { transform: scaleX(1); }
.site-nav__link[aria-current="page"] { color: var(--lime-400); }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  flex: 0 0 auto;
}
.header-actions__cta { white-space: nowrap; }

.season-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid rgba(255, 248, 243, .22);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: .08em;
  color: rgba(255, 248, 243, .72);
  white-space: nowrap;
}
.season-chip::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime-400);
  box-shadow: 0 0 0 3px rgba(182, 255, 60, .16);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid rgba(255, 248, 243, .28);
  border-radius: var(--radius);
  background: transparent;
  color: var(--paper-50);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
}
.nav-toggle__bars {
  position: relative;
  width: 16px;
  height: 10px;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  background: currentColor;
  transition: transform 200ms var(--ease);
}
.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { bottom: 0; }
.site-header[data-open="true"] .nav-toggle__bars::before { transform: translateY(4.25px) rotate(45deg); }
.site-header[data-open="true"] .nav-toggle__bars::after { transform: translateY(-4.25px) rotate(-45deg); }

.site-backdrop { display: none; }

/* ---------- 16. 联赛悬浮球 ---------- */
.league-dock {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
.league-orb {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 18px;
  border: 0;
  border-radius: 999px;
  background: var(--navy-900);
  color: var(--paper-50);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .06em;
  cursor: pointer;
  box-shadow: 0 16px 36px -16px rgba(10, 26, 51, .9);
  transition: background-color 180ms ease;
}
.league-orb:hover { background: var(--navy-700); }
.league-orb__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime-400);
}
.league-panel {
  width: min(272px, 80vw);
  padding: 16px;
  border-top: 2px solid var(--orange-500);
  border-radius: var(--radius);
  background: var(--navy-900);
  color: var(--paper-50);
  box-shadow: 0 26px 64px -24px rgba(10, 26, 51, .95);
}
.league-panel__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--slate-600);
}
.league-panel__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.league-panel__item {
  padding: 10px 12px;
  border: 1px solid rgba(255, 248, 243, .18);
  border-radius: var(--radius);
  background: transparent;
  color: rgba(255, 248, 243, .82);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}
.league-panel__item:hover { border-color: rgba(255, 248, 243, .5); color: var(--white); }
.league-panel__item[aria-pressed="true"] {
  background: var(--orange-500);
  border-color: var(--orange-500);
  color: var(--on-orange);
}
.league-panel__note {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  color: var(--slate-600);
}

/* ---------- 17. 页脚 ---------- */
.site-footer {
  margin-top: clamp(48px, 7vw, 110px);
  background: var(--navy-900);
  color: var(--paper-50);
}
.site-footer__top { padding: clamp(40px, 6vw, 76px) 0 36px; }

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.3fr;
  gap: clamp(24px, 3.6vw, 64px);
}

.footer__brand {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .02em;
  margin: 0 0 12px;
  color: var(--paper-50);
}
.footer__tagline {
  max-width: 34ch;
  margin: 0 0 16px;
  font-family: var(--font-editorial);
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 248, 243, .72);
}
.footer__meta {
  margin: 0;
  font-size: 13px;
  color: var(--slate-600);
}

.footer__title {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--slate-600);
}
.footer__list {
  display: grid;
  gap: 10px;
  list-style: none;
}
.footer__list a {
  color: rgba(255, 248, 243, .82);
  font-size: 15px;
  text-decoration: none;
  transition: color 160ms ease;
}
.footer__list a:hover { color: var(--white); text-decoration: underline; text-underline-offset: 3px; }
.footer__list--contact li {
  color: rgba(255, 248, 243, .82);
  font-size: 14px;
  line-height: 1.6;
  word-break: break-word;
}
.footer__note {
  margin: 16px 0 0;
  max-width: 36ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-600);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 28px;
  padding: 20px 0 30px;
  border-top: 1px solid rgba(255, 248, 243, .12);
  font-size: 13px;
  color: var(--slate-600);
}
.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  list-style: none;
}
.footer__legal a {
  color: rgba(255, 248, 243, .72);
  text-decoration: none;
}
.footer__legal a:hover { color: var(--white); text-decoration: underline; text-underline-offset: 3px; }
.footer__copy { margin: 0; }

/* ---------- 18. 响应式 ---------- */
@media (max-width: 1100px) {
  .season-chip { display: none; }
}

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

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

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: auto;
    z-index: 2;
    width: min(340px, 86vw);
    margin: 0;
    padding: calc(var(--header-h) + 26px) 28px 40px;
    background: var(--navy-900);
    overflow-y: auto;
    transform: translateX(100%);
    visibility: hidden;
    box-shadow: -28px 0 60px -30px rgba(0, 0, 0, .8);
    transition: transform 240ms var(--ease), visibility 240ms linear;
  }
  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .site-nav__list > li { border-bottom: 1px solid rgba(255, 248, 243, .1); }
  .site-nav__link { padding: 16px 4px; font-size: 17px; font-weight: 600; }
  .site-nav__link::after { display: none; }
  .site-nav__link[aria-current="page"] { color: var(--lime-400); }

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

  .site-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 1;
    background: rgba(10, 26, 51, .62);
    opacity: 0;
    visibility: hidden;
    transition: opacity 200ms ease, visibility 200ms linear;
  }
  .site-header[data-open="true"] .site-backdrop { opacity: 1; visibility: visible; }

  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__col--brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .brand__badge { display: none; }
  .brand__mark { width: 30px; height: 30px; font-size: 15px; }
  .brand__name { font-size: 15px; }
  .header-actions__cta { padding: 11px 14px; font-size: 13px; }
  .nav-toggle__label { display: none; }
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .league-dock { right: 14px; bottom: 14px; }
  .league-orb { padding: 11px 15px; font-size: 12px; }
}

/* ---------- 19. 降低动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
  .site-header__progress { transition: none; }
}