:root {
  --color-surface: #f8f8f8;
  --color-surface-alt: #eeeeee;
  --color-surface-deep: #e1e0e1;
  --color-ink: #363036;
  --color-ink-soft: #665b66;
  --color-ink-muted: #827783;
  --color-line: #d5d4d5;
  --color-primary: #ca10db;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #f2d8f4;
  --color-accent: #0a8526;
  --color-accent-ink: #ffffff;
  --color-highlight: #cde3d2;
  --color-focus: #038220;
  --color-contrast-surface: #1a0c1b;
  --color-contrast-ink: #e7e4e7;
  --color-contrast-line: #473c48;
  --color-contrast-accent: #12ed44;
  --overlay-scrim: linear-gradient(180deg, rgba(26, 12, 27, 0.35) 0%, rgba(26, 12, 27, 0.72) 55%, rgba(26, 12, 27, 0.92) 100%);
  --font-heading: "Source Han Sans SC", "Noto Sans SC", SimHei, "Microsoft YaHei", sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, Menlo, Consolas, monospace;
  --text-xs: 10.4px;
  --text-sm: 13.9px;
  --text-base: 16px;
  --text-lg: 21.3px;
  --text-xl: 28.4px;
  --text-2xl: 37.9px;
  --text-3xl: 50.5px;
  --text-4xl: 67.3px;
  --text-display: clamp(46px, 9.5vw, 122px);
  --text-figure: clamp(39px, 6.9vw, 88px);
  --weight-heading: 709;
  --weight-body: 400;
  --leading-body: 1.72;
  --leading-heading: 1.17;
  --tracking-heading: -0.008em;
  --radius-sm: 1px;
  --radius-md: 1px;
  --radius-lg: 1px;
  --radius-pill: 1px;
  --border-thin: 1px;
  --border-thick: 2px;
  --shadow-1: none;
  --shadow-2: none;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1200px;
  --measure: 72ch;
  --gutter: 16px;
  --section-y: 100px;
  --section-y-lg: 140px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h, 108px) + var(--space-2));
}

body {
  margin: 0;
  background-color: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-body);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

p { margin: 0 0 var(--space-2); max-width: var(--measure); }

ul, ol { margin: 0; padding: 0; list-style: none; }

img, svg, video { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration: none; }

button, input, select, textarea { font: inherit; color: inherit; }

button { border: 0; background: none; padding: 0; cursor: pointer; }

table { width: 100%; border-collapse: collapse; }

dl, dd { margin: 0; }

[hidden] { display: none !important; }

:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 排版工具 ---------- */
.t-display { font-family: var(--font-heading); font-weight: var(--weight-heading); font-size: var(--text-display); line-height: 0.95; letter-spacing: -0.02em; }
.t-figure { font-family: var(--font-heading); font-weight: var(--weight-heading); font-size: var(--text-figure); line-height: 0.95; letter-spacing: -0.02em; }
.t-3xl { font-size: var(--text-3xl); }
.t-2xl { font-size: var(--text-2xl); }
.t-xl { font-size: var(--text-xl); }
.t-lg { font-size: var(--text-lg); }
.t-sm { font-size: var(--text-sm); }
.t-xs { font-size: var(--text-xs); letter-spacing: 0.08em; }

.num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: -0.01em;
}

.eyebrow {
  display: block;
  margin-bottom: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.lede {
  font-size: var(--text-lg);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.pullquote {
  position: relative;
  margin: var(--space-6) 0;
  padding-left: var(--space-4);
  border-left: var(--border-thick) solid var(--color-primary);
  font-size: var(--text-lg);
  color: var(--color-ink-soft);
}

.pullquote::before {
  content: "\201C";
  display: block;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-3xl);
  line-height: 0.7;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.section--contrast .eyebrow,
.section--contrast .lede { color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent); }
.section--contrast .pullquote { color: var(--color-contrast-ink); border-left-color: var(--color-contrast-accent); }
.section--contrast .pullquote::before { color: var(--color-contrast-accent); }
.section--primary .eyebrow,
.section--primary .lede { color: color-mix(in srgb, var(--color-primary-ink) 80%, transparent); }

/* ---------- 容器与区块 ---------- */
.wrap {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.section { padding-block: var(--section-y); }
.section--lg { padding-block: var(--section-y-lg); }
.section--tight { padding-block: var(--space-6); }
.section--alt { background-color: var(--color-surface-alt); }
.section--deep { background-color: var(--color-surface-deep); }
.section--primary { background-color: var(--color-primary); color: var(--color-primary-ink); }
.section--contrast { background-color: var(--color-contrast-surface); color: var(--color-contrast-ink); }
.section--contrast .card { border-top-color: var(--color-contrast-accent); }

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

/* ---------- 跳至正文 ---------- */
.skip-link {
  position: fixed;
  top: -120px;
  left: var(--space-2);
  z-index: 300;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 var(--space-3);
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  transition: top 160ms linear;
}

.skip-link:focus { top: var(--space-2); }

/* ---------- 刊头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.site-header__inner {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-2);
  padding-block: var(--space-3);
}

.masthead__brand {
  grid-column: 2;
  display: block;
  text-align: center;
  transition: opacity 140ms linear;
}

.masthead__brand:hover .masthead__name { color: var(--color-contrast-accent); }

.masthead__name {
  display: block;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: clamp(28px, 3.4vw, 46px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--color-contrast-ink);
  transition: color 140ms linear;
}

.masthead__tagline {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: color-mix(in srgb, var(--color-contrast-ink) 60%, transparent);
}

.masthead__tools {
  grid-column: 3;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  min-width: 0;
}

.site-header[data-compact] .masthead { padding-block: var(--space-1); }
.site-header[data-compact] .masthead__tagline { display: none; }
.site-header[data-compact] .site-nav__list a { min-height: 40px; }

/* 联赛切换器 */
.league-switch { display: flex; align-items: stretch; }

.league-switch__item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 12px;
  border: var(--border-thin) solid var(--color-contrast-line);
  border-right-width: 0;
  background-color: transparent;
  color: var(--color-contrast-ink);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: background-color 140ms linear, color 140ms linear, border-color 140ms linear;
}

.league-switch__item:last-child { border-right-width: var(--border-thin); }

.league-switch__item:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.league-switch__item.is-active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

/* 移动端栏目开关 */
.nav-toggle {
  grid-column: 1;
  justify-self: start;
  display: none;
  align-items: center;
  gap: var(--space-1);
  min-height: 44px;
  padding: 0 var(--space-2);
  border: var(--border-thin) solid var(--color-contrast-line);
  color: var(--color-contrast-ink);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  transition: background-color 140ms linear, color 140ms linear, border-color 140ms linear;
}

.nav-toggle__bars {
  display: block;
  width: 16px;
  height: 2px;
  background-color: currentColor;
  box-shadow: 0 -5px 0 currentColor, 0 5px 0 currentColor;
}

.nav-toggle[aria-expanded="true"] {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

/* 主导航 */
.site-nav { border-top: var(--border-thin) solid var(--color-contrast-line); }

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

.site-nav__list li { display: flex; }

.site-nav__list a {
  display: flex;
  align-items: center;
  min-height: 46px;
  padding: 0 var(--space-3);
  border-left: var(--border-thin) solid var(--color-contrast-line);
  color: var(--color-contrast-ink);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  transition: background-color 140ms linear, color 140ms linear;
}

.site-nav__list li:last-child a { border-right: var(--border-thin) solid var(--color-contrast-line); }

.site-nav__list a:hover {
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.site-nav__list a[aria-current="page"] {
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
}

/* 阅读进度 */
.scroll-meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  overflow: hidden;
}

.scroll-meter__fill {
  display: block;
  width: 0;
  height: 100%;
  background-color: var(--color-primary);
  transition: width 120ms linear;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 var(--space-3);
  border: var(--border-thin) solid var(--color-primary);
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-align: center;
  transition: background-color 140ms linear, color 140ms linear, border-color 140ms linear;
}

.btn:hover {
  background-color: var(--color-contrast-surface);
  border-color: var(--color-contrast-surface);
  color: var(--color-contrast-accent);
}

.btn--ghost {
  background-color: transparent;
  border-color: var(--color-contrast-line);
  color: var(--color-contrast-ink);
}

.btn--ghost:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.btn--outline {
  background-color: transparent;
  border-color: var(--color-ink);
  color: var(--color-ink);
}

.btn--outline:hover {
  background-color: var(--color-contrast-surface);
  border-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.section--contrast .btn--outline {
  border-color: var(--color-contrast-line);
  color: var(--color-contrast-ink);
}

.section--contrast .btn--outline:hover {
  background-color: var(--color-contrast-accent);
  border-color: var(--color-contrast-accent);
  color: var(--color-contrast-surface);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding-block: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.breadcrumb li { display: inline-flex; align-items: center; }

.breadcrumb li + li::before {
  content: "/";
  margin-right: var(--space-1);
  color: var(--color-line);
}

.breadcrumb a { transition: color 140ms linear; }
.breadcrumb a:hover { color: var(--color-primary); }

/* ---------- 模块索引条 ---------- */
.index-bar {
  position: sticky;
  top: var(--header-h, 108px);
  z-index: 40;
  background-color: var(--color-surface-deep);
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.index-bar__track {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
}

.index-bar__link {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  white-space: nowrap;
  color: var(--color-ink-soft);
  border-bottom: var(--border-thick) solid transparent;
  transition: color 140ms linear, border-color 140ms linear;
}

.index-bar__link:hover { color: var(--color-ink); }

.index-bar__link.is-current {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ---------- 图片容器 ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  background-color: var(--color-surface-deep);
  border-radius: var(--radius-sm);
}

.media-frame > img,
.media-frame > svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-frame--4x3 { aspect-ratio: 4 / 3; }
.media-frame--1x1 { aspect-ratio: 1 / 1; }

.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: var(--space-2);
  background: var(--overlay-scrim);
  color: var(--color-primary-ink);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  line-height: 1.5;
}

.section--contrast .media-frame { border-color: var(--color-contrast-line); }

/* ---------- 卡片与指标 ---------- */
.card {
  padding: var(--space-3);
  background-color: var(--color-surface-alt);
  border-top: var(--border-thick) solid var(--color-primary);
}

.card--contrast {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-top-color: var(--color-primary);
}

.card--plain { border-top-color: var(--color-line); }

.kpi { display: flex; flex-direction: column; gap: var(--space-1); }

.kpi__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-2xl);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.kpi__value--accent { color: var(--color-accent); }

.section--contrast .kpi__value--accent { color: var(--color-contrast-accent); }

.kpi__label {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.section--contrast .kpi__label { color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent); }

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 var(--space-1);
  background-color: var(--color-primary-soft);
  color: var(--color-ink);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
}

.tag--accent {
  background-color: var(--color-highlight);
  color: var(--color-ink);
}

.tag--primary {
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
}

/* ---------- 数据表 ---------- */
.data-table {
  font-size: var(--text-sm);
  border-top: var(--border-thick) solid var(--color-ink);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.data-table th,
.data-table td {
  padding: 10px var(--space-2);
  text-align: left;
  border-bottom: var(--border-thin) solid var(--color-line);
  vertical-align: top;
}

.data-table thead th {
  background-color: var(--color-surface-deep);
  color: var(--color-ink-soft);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
}

.data-table tbody tr:last-child td { border-bottom: 0; }

.section--contrast .data-table { border-top-color: var(--color-contrast-line); border-bottom-color: var(--color-contrast-line); }
.section--contrast .data-table th,
.section--contrast .data-table td { border-bottom-color: var(--color-contrast-line); }
.section--contrast .data-table thead th { background-color: color-mix(in srgb, var(--color-contrast-ink) 12%, var(--color-contrast-surface)); color: var(--color-contrast-ink); }

/* ---------- 可展开组 ---------- */
.reveal-group { border-top: var(--border-thin) solid var(--color-line); }

.reveal-group:last-child { border-bottom: var(--border-thin) solid var(--color-line); }

.reveal-group__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  width: 100%;
  min-height: 52px;
  padding: var(--space-2) 0;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-base);
  color: inherit;
  transition: background-color 140ms linear, color 140ms linear, padding 140ms linear;
}

.reveal-group__trigger::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-lg);
  line-height: 1;
}

.reveal-group__trigger[aria-expanded="true"] {
  padding-inline: var(--space-2);
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.reveal-group__trigger[aria-expanded="true"]::after { content: "\2013"; }

.reveal-group__panel { padding: var(--space-2) 0 var(--space-4); }

.section--contrast .reveal-group { border-top-color: var(--color-contrast-line); }
.section--contrast .reveal-group:last-child { border-bottom-color: var(--color-contrast-line); }

/* ---------- 显现 ---------- */
.reveal-ready {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 240ms linear, transform 240ms linear;
}

.revealed {
  opacity: 1;
  transform: none;
}

/* ---------- 呼吸点 ---------- */
.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: var(--space-1);
  background-color: var(--color-contrast-accent);
  animation: livePulse 2s linear infinite;
}

@keyframes livePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ---------- 页脚 ---------- */
.site-footer {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.site-footer__inner {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding-top: var(--space-8);
}

.footer-col {
  padding: 0 var(--space-3) var(--space-6);
  border-left: var(--border-thin) solid var(--color-contrast-line);
}

.footer-col:first-child { border-left: 0; padding-left: 0; }
.footer-col:last-child { padding-right: 0; }

.footer-col__title {
  margin: 0 0 var(--space-3);
  padding-bottom: var(--space-1);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent);
}

.footer-col__text {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
  max-width: none;
}

.footer-col__live {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-ink);
}

.footer-links li { border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-contrast-line) 72%, transparent); }

.footer-links a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding-inline: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  transition: background-color 140ms linear, color 140ms linear;
}

.footer-links a:hover {
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.footer-links--tight + .footer-contact { margin-top: var(--space-3); }

.footer-contact { display: grid; gap: 2px; }

.footer-contact dt {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: color-mix(in srgb, var(--color-contrast-ink) 55%, transparent);
}

.footer-contact dd {
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-contrast-ink);
  word-break: break-word;
}

.site-footer__scale {
  height: var(--space-2);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  background-image: repeating-linear-gradient(
    90deg,
    var(--color-contrast-line) 0 1px,
    transparent 1px 25%
  );
  background-position: 0 0;
  background-size: 100% 100%;
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  padding-top: var(--space-3);
}

.site-footer__brand {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  letter-spacing: 0.06em;
  color: var(--color-contrast-ink);
}

.site-footer__meta {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.site-footer__note {
  margin: 0;
  padding: var(--space-2) 0 var(--space-6);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: color-mix(in srgb, var(--color-contrast-ink) 55%, transparent);
  max-width: var(--measure);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .masthead__cta { display: none; }
  .footer-col { padding-inline: var(--space-2); }
}

@media (max-width: 880px) {
  .masthead {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "brand toggle"
      "tools tools";
    padding-block: var(--space-2);
    gap: var(--space-2);
  }

  .masthead__brand { grid-area: brand; text-align: left; }
  .nav-toggle { grid-area: toggle; display: inline-flex; justify-self: end; }
  .masthead__tools {
    grid-area: tools;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .masthead__cta { display: inline-flex; flex: 0 0 auto; }
  .league-switch { flex: 0 0 auto; }

  .site-nav { display: none; }
  .site-nav[data-open] { display: block; padding-bottom: var(--space-2); }

  .site-nav__list { flex-direction: column; }
  .site-nav__list li { display: block; border-top: var(--border-thin) solid var(--color-contrast-line); }
  .site-nav__list li:first-child { border-top: 0; }

  .site-nav__list a {
    width: 100%;
    min-height: 44px;
    padding-inline: var(--space-1);
    border-left: 0;
    border-right: 0;
  }

  .site-nav__list li:last-child a { border-right: 0; }

  .site-header[data-compact] .site-nav__list a { min-height: 44px; }

  .grid--8, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); padding-top: var(--space-6); }
  .footer-col { padding-inline: var(--space-2); }
  .footer-col:nth-child(odd) { border-left: 0; padding-left: 0; }
  .footer-col:nth-child(even) { padding-right: 0; }
}

@media (max-width: 560px) {
  .wrap, .site-header__inner, .site-footer__inner { padding-inline: var(--space-2); }

  .section { padding-block: var(--space-8); }
  .section--lg { padding-block: var(--space-8); }

  .grid--8, .grid--4, .grid--2 { grid-template-columns: minmax(0, 1fr); }

  .site-footer__grid { grid-template-columns: minmax(0, 1fr); }

  .footer-col {
    border-left: 0;
    padding: 0 0 var(--space-4);
    border-top: var(--border-thin) solid var(--color-contrast-line);
    padding-top: var(--space-3);
  }

  .footer-col:first-child { border-top: 0; padding-top: 0; }

  .site-footer__base { flex-direction: column; align-items: flex-start; }
  .site-footer__brand { font-size: var(--text-base); }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal-ready { opacity: 1; transform: none; }
  .live-dot { animation: none; opacity: 1; }
  .scroll-meter__fill { transition: none; }
}