/* ==========================================================================
   AK体育直播 · 共享样式表 /assets/site.css
   体系：赛场夜战 —— 夜场墨绿底 + 经纬度细线网格 + 暖纸白纸面 + 荧光青读数
   ========================================================================== */

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

html,
body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, li, figure, blockquote, dl, dd { margin: 0; padding: 0; }

ul, ol { list-style: none; }

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

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

a { color: inherit; }

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

/* ---------- 2. Tokens ---------- */
:root {
  --ink: #0B1A15;
  --pine: #14261F;
  --paper: #F2EBDD;
  --paper-line: #D8CEBC;
  --ember: #FF4A1C;
  --amber: #FFC22E;
  --cyan: #35F2D6;
  --edge: rgba(255, 255, 255, 0.14);
  --grid: rgba(255, 255, 255, 0.04);
  --mist: #8FA39C;
  --ash: #7A2A12;

  --shell-max: 1440px;
  --gutter: clamp(16px, 4vw, 56px);
  --step: 0.24s;

  --font-head: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: ui-monospace, "IBM Plex Mono", "Roboto Mono", SFMono-Regular, Menlo, Consolas, monospace;

  --text-scale: 1;
}

html[data-text-size="large"] { --text-scale: 1.125; }

/* ---------- 3. 基础排版 ---------- */
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background-color: var(--ink);
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: calc(17px * var(--text-scale));
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

html.nav-open,
html.nav-open body { overflow: hidden; }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(44px, 7vw, 96px); }
h2 { font-size: clamp(30px, 4.4vw, 44px); }
h3 { font-size: clamp(22px, 2.6vw, 26px); }
h4 { font-size: 18px; }

p { line-height: 1.8; }

::selection { background: var(--ember); color: #FFFFFF; }

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

#main-content { display: block; scroll-margin-top: 120px; }

/* ---------- 4. 助手类 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

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

.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--ember);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: top var(--step) ease;
}

.skip-link:focus { top: 8px; }

/* ---------- 5. 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 0;
  background: transparent;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--step) ease, color var(--step) ease,
              border-color var(--step) ease, transform 0.12s ease;
}

.btn--primary {
  background: var(--ember);
  border-color: var(--ember);
  color: #FFFFFF;
}

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

.btn--ghost {
  border-color: var(--edge);
  color: var(--paper);
}

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

.btn:active { transform: translateY(1px); }

/* ---------- 6. 面包屑 ---------- */
.breadcrumb {
  padding-block: 14px;
  border-bottom: 1px solid var(--edge);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.breadcrumb__item { display: inline-flex; align-items: center; gap: 8px; }

.breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--step) ease, border-color var(--step) ease;
}

.breadcrumb__link:hover { color: var(--cyan); border-bottom-color: var(--cyan); }

.breadcrumb__sep { color: var(--edge); }

.breadcrumb__item[aria-current="page"] .breadcrumb__link { color: var(--amber); }

/* ---------- 7. 展板骨架 ---------- */
.section {
  padding-block: clamp(48px, 7vw, 104px);
  border-top: 1px solid var(--edge);
}

.section--paper {
  background: var(--paper);
  background-image:
    linear-gradient(to right, rgba(11, 26, 21, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 26, 21, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--ink);
  border-top-color: var(--paper-line);
}

.section--paper .section-head__note,
.section--paper .media__caption { color: var(--ash); }

.band {
  padding-block: clamp(20px, 3vw, 34px);
  border-block: 1px solid var(--amber);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 22px;
  margin-bottom: clamp(24px, 4vw, 48px);
}

.section-head__index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.section-head__title {
  font-size: clamp(28px, 4vw, 44px);
  text-transform: uppercase;
}

.section-head__note {
  flex: 1 1 240px;
  font-size: 14px;
  color: var(--mist);
}

/* ---------- 8. 栅格 ---------- */
.grid { display: grid; gap: clamp(16px, 2.5vw, 32px); }
.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)); }

/* ---------- 9. 长文与页头 ---------- */
.prose { max-width: 46em; }

.prose h2 {
  margin: 1.8em 0 0.6em;
  font-size: clamp(24px, 3vw, 34px);
}

.prose h3 { margin: 1.4em 0 0.5em; }

.prose p { margin-bottom: 1.1em; }

.prose ul,
.prose ol { margin: 0 0 1.2em; padding-left: 1.4em; }

.prose ul { list-style: square; }
.prose ol { list-style: decimal; }

.prose li { margin: 0.4em 0; }

.prose a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
  transition: color var(--step) ease, border-color var(--step) ease;
}

.prose a:hover { color: var(--ember); border-bottom-color: var(--ember); }

.section--paper .prose a { color: var(--ash); border-bottom-color: var(--ash); }

.page-head {
  padding-block: clamp(40px, 6vw, 80px) clamp(24px, 4vw, 48px);
}

.page-head__title { margin-bottom: 18px; }

.page-head__lede {
  max-width: 46em;
  color: var(--mist);
  font-size: clamp(16px, 1.6vw, 19px);
}

.section--paper .page-head__lede { color: var(--ash); }

.page-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ---------- 10. 图片容器（页面阶段使用） ---------- */
.media { position: relative; }

.media__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--edge);
  background: var(--pine);
}

.section--paper .media__frame { border-color: var(--paper-line); }

.media__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media__frame--21x9 { aspect-ratio: 21 / 9; }
.media__frame--16x9 { aspect-ratio: 16 / 9; }
.media__frame--4x3 { aspect-ratio: 4 / 3; }
.media__frame--1x1 { aspect-ratio: 1 / 1; }

.media__grid-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(53, 242, 214, 0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(53, 242, 214, 0.16) 1px, transparent 1px);
  background-size: 48px 48px;
}

.media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 11. 标签、注释、研究板、指标、索引 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border: 2px solid var(--amber);
  border-radius: 0;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.tag--cyan { border-color: var(--cyan); color: var(--cyan); }

.note-official {
  padding: 10px 0 10px 14px;
  border-left: 2px solid var(--amber);
  color: var(--mist);
  font-size: 14px;
}

.note-official__label {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.board {
  padding: clamp(18px, 2.4vw, 28px);
  border: 1px solid var(--edge);
  background: var(--pine);
  transition: background var(--step) ease, color var(--step) ease,
              border-color var(--step) ease;
}

.board:hover {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--ink);
}

.board__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.board:hover .board__meta { color: var(--ash); }

.stat__value {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.05;
  color: var(--cyan);
}

.stat__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--mist);
}

.section--paper .stat__value { color: var(--ash); }

.side-index {
  position: sticky;
  top: 120px;
  display: grid;
  gap: 8px;
}

.side-index__link {
  display: flex;
  gap: 10px;
  padding-left: 10px;
  border-left: 2px solid var(--edge);
  color: var(--mist);
  font-size: 13px;
  text-decoration: none;
  transition: color var(--step) ease, border-color var(--step) ease;
}

.side-index__link:hover { color: var(--paper); border-left-color: var(--paper); }

.side-index__link[data-active="true"] {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

/* ---------- 12. 页头 · 补时计时带 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--ink);
  border-bottom: 1px solid var(--edge);
}

.timer-band {
  max-height: 170px;
  overflow: hidden;
  background: var(--ink);
  border-top: 1px solid var(--amber);
  border-bottom: 1px solid var(--amber);
  transition: max-height var(--step) ease, opacity var(--step) ease;
}

.site-header[data-condensed="true"] .timer-band {
  max-height: 0;
  opacity: 0;
}

.timer-band__inner {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) auto minmax(0, 1.5fr);
  align-items: center;
  gap: clamp(12px, 3vw, 44px);
  min-height: 66px;
  padding-block: 10px;
}

.timer-band__live {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.timer-band__live-count {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--ember);
}

.timer-band__live-unit { color: var(--mist); }

.pulse-dot {
  width: 8px;
  height: 8px;
  align-self: center;
  background: var(--ember);
  animation: dotPulse 1.6s steps(2, end) infinite;
}

@keyframes dotPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.15; }
}

.timer-band__clock {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.timer-band__clock-label {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.timer-band__digits {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan);
  text-shadow: 0 0 14px rgba(53, 242, 214, 0.35);
}

.timer-band__ticker {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.timer-band__ticker-label {
  flex: 0 0 auto;
  padding: 3px 8px;
  border: 1px solid var(--amber);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.timer-band__ticker-viewport {
  flex: 1 1 auto;
  min-width: 0;
  height: 44px;
  overflow: hidden;
}

.timer-band__ticker-track {
  animation: tickerRoll 18s linear infinite;
}

.timer-band__ticker:hover .timer-band__ticker-track { animation-play-state: paused; }

.timer-band__ticker-item {
  height: 22px;
  line-height: 22px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--mist);
}

@keyframes tickerRoll {
  from { transform: translateY(0); }
  to { transform: translateY(-50%); }
}

/* ---------- 13. 页头 · 命令栏 ---------- */
.command-bar {
  background: var(--pine);
  border-bottom: 1px solid var(--edge);
}

.command-bar__inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 28px);
  min-height: 64px;
  padding-block: 6px;
  transition: min-height var(--step) ease;
}

.site-header[data-condensed="true"] .command-bar__inner { min-height: 48px; }

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  text-decoration: none;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: var(--ember);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand__text { display: flex; flex-direction: column; line-height: 1.15; }

.brand__name {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand__sub {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.site-nav { margin-left: auto; }

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.site-nav__link {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 12px;
  border: 1px solid transparent;
  font-size: 14px;
  text-decoration: none;
  transition: background var(--step) ease, color var(--step) ease,
              border-color var(--step) ease;
}

.site-nav__index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
  transition: color var(--step) ease;
}

.site-nav__link:hover {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--ink);
}

.site-nav__link:hover .site-nav__index { color: var(--ash); }

.site-nav__link[aria-current="page"] {
  box-shadow: inset 0 -2px 0 var(--cyan);
  color: var(--paper);
}

.site-nav__link[aria-current="page"] .site-nav__index { color: var(--cyan); }

.utilities {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

.util-status {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--edge);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.util-status__key { color: var(--mist); }

.util-status__value {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.util-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  border: 1px solid var(--edge);
  border-radius: 0;
  background: transparent;
  color: var(--mist);
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color var(--step) ease, border-color var(--step) ease,
              background var(--step) ease;
}

.util-btn:hover,
.util-btn:focus-visible { border-color: var(--cyan); color: var(--cyan); }

.util-btn[aria-pressed="true"] { border-color: var(--amber); color: var(--amber); }

.util-btn[data-copied="true"] { border-color: var(--ember); color: var(--ember); }

.util-btn__icon { font-family: var(--font-mono); font-size: 11px; }

.util-btn__text { white-space: nowrap; }

.sr-status {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 8px 10px;
  border: 1px solid var(--edge);
  background: transparent;
  color: var(--paper);
  font-size: 12px;
  letter-spacing: 0.14em;
  cursor: pointer;
}

.nav-toggle__bars { display: grid; gap: 3px; width: 18px; }

.nav-toggle__bars span {
  display: block;
  height: 2px;
  background: var(--amber);
}

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

.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: 92;
  background: rgba(11, 26, 21, 0.76);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--step) ease, visibility var(--step) ease;
}

.nav-scrim[data-visible="true"] { opacity: 1; visibility: visible; }

/* ---------- 14. 页脚 ---------- */
.site-footer {
  margin-top: clamp(40px, 6vw, 96px);
  background: var(--ink);
  border-top: 1px solid var(--amber);
  color: var(--mist);
}

.site-footer__inner { padding-block: clamp(40px, 6vw, 72px) 24px; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
}

.footer-brand { display: grid; gap: 14px; align-content: start; }

.footer-brand__note { font-size: 14px; max-width: 30ch; }

.footer-brand__cta { justify-self: start; }

.footer-col { display: grid; gap: 12px; align-content: start; }

.footer-col__title {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}

.footer-col__list { display: grid; gap: 9px; }

.footer-col__link {
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--step) ease, border-color var(--step) ease;
}

.footer-col__link:hover { color: var(--cyan); border-bottom-color: var(--cyan); }

.footer-col__static { font-size: 14px; color: var(--mist); opacity: 0.75; }

.footer-col__more {
  justify-self: start;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid var(--amber);
}

.footer-col__more:hover { color: var(--ember); border-bottom-color: var(--ember); }

.footer-contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px 32px;
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: 22px;
  border-top: 1px solid var(--edge);
}

.footer-contact__item { display: grid; gap: 6px; align-content: start; }

.footer-contact__item--wide { grid-column: span 2; }

.footer-contact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.footer-contact__value {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--paper);
  word-break: break-all;
}

.footer-contact__value--text {
  font-family: var(--font-body);
  word-break: normal;
}

.footer-contact__note {
  grid-column: 1 / -1;
  font-size: 13px;
  color: var(--mist);
}

.copy-btn {
  justify-self: start;
  padding: 5px 10px;
  border: 1px solid var(--edge);
  border-radius: 0;
  background: transparent;
  color: var(--mist);
  font-size: 12px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color var(--step) ease, border-color var(--step) ease;
}

.copy-btn:hover,
.copy-btn:focus-visible { color: var(--cyan); border-color: var(--cyan); }

.copy-btn[data-copied="true"] { color: var(--ember); border-color: var(--ember); }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid var(--edge);
  font-size: 12px;
  color: var(--mist);
}

.footer-legal__icp { font-family: var(--font-mono); color: var(--paper); }

.footer-legal__note { max-width: 68ch; }

.footer-legal__copy { font-family: var(--font-mono); }

.footer-index {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 32px;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--edge);
}

.footer-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}

.footer-index__list--legal { margin-left: auto; }

.footer-index__link {
  display: inline-flex;
  gap: 7px;
  align-items: baseline;
  font-size: 12px;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--step) ease, border-color var(--step) ease;
}

.footer-index__link:hover { color: var(--cyan); border-bottom-color: var(--cyan); }

.footer-index__num { font-family: var(--font-mono); color: var(--amber); }

/* ---------- 15. 滚动进度与显现 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 120;
  width: 0;
  height: 2px;
  background: var(--ember);
  pointer-events: none;
  transition: width 0.1s linear;
}

html[data-js="true"] [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--step) ease, transform var(--step) ease;
}

html[data-js="true"] [data-reveal][data-revealed="true"] {
  opacity: 1;
  transform: none;
}

[data-section][data-active="true"] .section-head__index { color: var(--amber); }

/* ---------- 16. 响应式 ---------- */
@media (max-width: 1180px) {
  .util-status--league { display: none; }
  .footer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 1023px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 95;
    width: min(340px, 88vw);
    margin: 0;
    padding: 92px 22px 32px;
    background: var(--ink);
    border-left: 1px solid var(--amber);
    overflow-y: auto;
    transform: translateX(101%);
    transition: transform var(--step) ease;
  }

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

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__link {
    padding: 15px 8px;
    border-bottom: 1px solid var(--edge);
    font-size: 16px;
  }

  .site-nav__link[aria-current="page"] { box-shadow: inset 3px 0 0 var(--cyan); }

  .utilities { margin-left: auto; }
  .util-status { display: none; }

  .footer-index__list--legal { margin-left: 0; }
}

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

  .timer-band { max-height: 200px; }

  .timer-band__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "live clock"
      "ticker ticker";
    row-gap: 8px;
    padding-block: 12px;
  }

  .timer-band__live { grid-area: live; }
  .timer-band__clock { grid-area: clock; justify-content: flex-end; }

  .timer-band__ticker {
    grid-area: ticker;
    padding-top: 8px;
    border-top: 1px solid var(--edge);
  }

  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-contact__item--wide { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .brand__sub { display: none; }

  .util-btn__text { display: none; }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }

  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-brand { grid-column: auto; }

  .footer-legal { flex-direction: column; }

  .side-index {
    position: static;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }
}

/* ---------- 17. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .timer-band__ticker-track { animation: none; }

  .pulse-dot { animation: none; }

  html[data-js="true"] [data-reveal] {
    opacity: 1;
    transform: none;
  }
}