/* =========================================================
   中欧体育手机版 · 共享外壳样式 /assets/site.css
   赛季观测台：玻璃阅读条 + 草原深绿实色层 + 等宽索引
   ========================================================= */

/* ---------- 1. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, h5, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
img, svg, picture { display: block; max-width: 100%; }
table { border-collapse: collapse; width: 100%; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--accent); color: #0B1F3A; }

/* ---------- 2. 变量 ---------- */
:root {
  --grass: #0E3B2E;
  --grass-2: #145A45;
  --moss: #6B8F71;
  --night: #0B1F3A;
  --night-2: #1E3A5F;
  --accent: #F26B21;
  --accent-dark: #8A3B0E;
  --silver: #C7CDD4;
  --paper: #F4F1E8;
  --stone: #3A3F44;
  --clay: #B86B4B;

  --font-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif;
  --font-mono: "Roboto Mono", "JetBrains Mono", "SFMono-Regular", monospace;

  --shell-max: 1240px;
  --gutter: clamp(18px, 4vw, 48px);
  --radius: 2px;
  --ease: cubic-bezier(.2, .7, .2, 1);

  --seasonbar-h: 34px;
  --bar-h: 66px;
  --masthead-total: calc(var(--seasonbar-h) + var(--bar-h));

  --line-light: rgba(58, 63, 68, .16);
  --line-dark: rgba(199, 205, 212, .18);
}

/* ---------- 3. 基础排版 ---------- */
body {
  background: var(--paper);
  color: var(--stone);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--grass);
}
h1 { font-size: clamp(32px, 4.4vw, 64px); }
h2 { font-size: clamp(26px, 3vw, 44px); }
h3 { font-size: clamp(20px, 2vw, 28px); }
h4 { font-size: 18px; }
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}

/* ---------- 4. 容器与节奏 ---------- */
.container {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: 860px; }
.section { padding-block: clamp(48px, 7vw, 96px); }
.section--tight { padding-block: clamp(28px, 4vw, 56px); }

/* ---------- 5. 12 列网格 ---------- */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
}
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }
@media (max-width: 900px) {
  .col-4, .col-5, .col-6, .col-7, .col-8 { grid-column: span 12; }
}

/* ---------- 6. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 10px 18px;
  background: var(--paper);
  color: var(--grass);
  border: 2px solid var(--grass);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  transform: translateY(-180%);
  transition: transform .2s var(--ease);
}
.skip-link:focus, .skip-link:focus-visible { transform: translateY(0); }

/* ---------- 7. 页头：赛季条 ---------- */
.masthead {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
}
.seasonbar {
  background: var(--night);
  color: var(--silver);
  border-bottom: 1px solid var(--line-dark);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
}
.seasonbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: var(--seasonbar-h);
}
.seasonbar__line {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  color: rgba(244, 241, 232, .78);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.seasonbar__dot {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(242, 107, 33, .18);
}
.seasonbar__switch { display: flex; align-items: center; gap: 2px; flex: 0 0 auto; }
.season-btn {
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(244, 241, 232, .62);
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.season-btn:hover { color: var(--paper); border-color: rgba(199, 205, 212, .38); }
.season-btn[aria-pressed="true"] {
  color: #FFFFFF;
  border-color: var(--accent);
  background: rgba(242, 107, 33, .16);
}
.seasonbar__readout {
  flex: 0 0 auto;
  color: rgba(199, 205, 212, .72);
  letter-spacing: .1em;
  white-space: nowrap;
}

/* ---------- 8. 页头：玻璃阅读条 ---------- */
.masthead__bar {
  position: relative;
  background: rgba(11, 31, 58, .74);
  -webkit-backdrop-filter: blur(14px) saturate(130%);
  backdrop-filter: blur(14px) saturate(130%);
  border-bottom: 1px solid var(--line-dark);
  color: var(--paper);
  transition: background .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}
.masthead[data-scrolled="true"] .masthead__bar {
  background: var(--grass);
  border-bottom-color: rgba(107, 143, 113, .55);
  box-shadow: 0 14px 32px rgba(11, 31, 58, .28);
}
.masthead__inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 26px);
  min-height: var(--bar-h);
}
.masthead__progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  transform: scaleX(var(--progress, 0));
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--moss), var(--accent));
  pointer-events: none;
}

/* ---------- 9. 品牌 ---------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  color: inherit;
}
.brand__mark {
  position: relative;
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  border: 2px solid rgba(244, 241, 232, .88);
  transform: rotate(45deg);
  transition: border-color .2s var(--ease);
}
.brand__mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--accent);
}
.brand:hover .brand__mark { border-color: var(--silver); }
.brand__type { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: .02em;
  line-height: 1.25;
  white-space: nowrap;
}
.brand__sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  line-height: 1.4;
  color: rgba(244, 241, 232, .6);
  white-space: nowrap;
}
.brand--footer .brand__name { font-size: 20px; }
.brand--footer .brand__sub { font-size: 10.5px; }

/* ---------- 10. 主导航 ---------- */
.site-nav { margin-left: auto; }
.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(4px, 1.1vw, 18px);
}
.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 8px 2px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(244, 241, 232, .8);
  white-space: nowrap;
  transition: color .2s var(--ease);
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease);
}
.site-nav__link:hover { color: #FFFFFF; }
.site-nav__link:hover::after { transform: scaleX(1); }
.site-nav__link[aria-current="page"] { color: #FFFFFF; font-weight: 700; }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); }
.site-nav__cta { display: none; }

/* ---------- 11. 页头行动入口与菜单按钮 ---------- */
.masthead__cta { flex: 0 0 auto; white-space: nowrap; }
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  min-width: 44px;
  min-height: 44px;
  padding: 8px 12px;
  margin-left: auto;
  border: 1px solid rgba(199, 205, 212, .45);
  border-radius: var(--radius);
  color: var(--paper);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.nav-toggle:hover { border-color: var(--paper); background: rgba(244, 241, 232, .08); }
.nav-toggle__text {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
}
.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform .25s var(--ease), top .25s var(--ease), bottom .25s var(--ease);
}
.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { bottom: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { top: 4px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { bottom: 4px; transform: rotate(-45deg); }

/* ---------- 12. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  background: var(--silver);
  color: var(--night);
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn--accent { background: var(--accent); color: #0B1F3A; font-weight: 700; }
.btn--accent:hover { background: #FF7D33; }
.btn--line { background: transparent; border-color: rgba(199, 205, 212, .5); color: var(--paper); }
.btn--line:hover { background: rgba(244, 241, 232, .1); border-color: var(--paper); }
.btn--ghost { background: transparent; border-color: rgba(58, 63, 68, .3); color: var(--grass); }
.btn--ghost:hover { background: rgba(14, 59, 46, .07); border-color: var(--grass); }

/* ---------- 13. 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid rgba(58, 63, 68, .25);
  border-radius: 999px;
  background: rgba(244, 241, 232, .6);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--stone);
}
.tag--accent { background: rgba(242, 107, 33, .14); border-color: var(--accent); color: var(--accent-dark); }
.tag--clay { background: rgba(184, 107, 75, .16); border-color: var(--clay); color: #7A4227; }

/* ---------- 14. 堆叠面板 ---------- */
.panel {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 40px);
}
.panel--outline { background: transparent; border-color: rgba(58, 63, 68, .22); }
.panel--solid { background: var(--grass); border-color: transparent; color: var(--paper); }
.panel--night { background: var(--night); border-color: rgba(199, 205, 212, .2); color: var(--paper); }
.panel--glass {
  background: rgba(244, 241, 232, .1);
  border-color: rgba(199, 205, 212, .35);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--paper);
}
.panel--solid h2, .panel--solid h3, .panel--solid h4,
.panel--night h2, .panel--night h3, .panel--night h4,
.panel--glass h2, .panel--glass h3, .panel--glass h4 { color: var(--paper); }
.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-light);
}
.panel--solid .panel__head,
.panel--night .panel__head,
.panel--glass .panel__head { border-bottom-color: rgba(244, 241, 232, .24); }
.panel__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--clay);
}
.panel--solid .panel__label,
.panel--night .panel__label,
.panel--glass .panel__label { color: var(--silver); }

/* ---------- 15. 小标题 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--clay);
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: currentColor; }

/* ---------- 16. 数字块 ---------- */
.stat { display: grid; gap: 4px; }
.stat__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--grass);
}
.stat__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: rgba(58, 63, 68, .7);
}
.panel--solid .stat__num, .panel--night .stat__num, .panel--glass .stat__num { color: var(--paper); }
.panel--solid .stat__label, .panel--night .stat__label, .panel--glass .stat__label { color: rgba(244, 241, 232, .7); }

/* ---------- 17. 数据表 ---------- */
.data-table { font-size: 14px; }
.data-table th,
.data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line-light);
  vertical-align: middle;
}
.data-table th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(58, 63, 68, .72);
  border-bottom-color: rgba(58, 63, 68, .3);
}
.data-table td:first-child,
.data-table th:first-child { padding-left: 0; }
.data-table .is-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
}
.data-table tbody tr { transition: background .2s var(--ease); }
.data-table tbody tr:hover { background: rgba(107, 143, 113, .1); }
.data-table tr[data-state="alert"] td:first-child { box-shadow: inset 3px 0 0 var(--accent); }
.panel--solid .data-table th, .panel--night .data-table th { color: rgba(199, 205, 212, .8); border-bottom-color: rgba(199, 205, 212, .3); }
.panel--solid .data-table td, .panel--night .data-table td { border-bottom-color: rgba(199, 205, 212, .16); }
.panel--solid .data-table .is-num, .panel--night .data-table .is-num { color: var(--paper); }

/* ---------- 18. 图片容器 ---------- */
.media {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(14, 59, 46, .94), rgba(11, 31, 58, .94)),
    repeating-linear-gradient(90deg, rgba(199, 205, 212, .14) 0 1px, transparent 1px 56px);
}
.media::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 48%;
  background: radial-gradient(120% 100% at 50% 100%, rgba(107, 143, 113, .5), transparent 70%);
  pointer-events: none;
}
.media > img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--wide { aspect-ratio: 16 / 9; }
.media--square { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 3 / 4; }
.media__label {
  position: absolute;
  z-index: 2;
  left: 14px;
  bottom: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: rgba(244, 241, 232, .82);
}

/* ---------- 19. 侧边浮动索引 ---------- */
.rail {
  position: sticky;
  top: calc(var(--masthead-total) + 24px);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--stone);
}
.rail__title {
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(58, 63, 68, .6);
}
.rail__list {
  display: grid;
  gap: 2px;
  margin-top: 12px;
  border-left: 1px solid rgba(58, 63, 68, .2);
}
.rail__link {
  display: block;
  margin-left: -1px;
  padding: 7px 0 7px 14px;
  border-left: 2px solid transparent;
  color: rgba(58, 63, 68, .7);
  letter-spacing: .04em;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.rail__link:hover { color: var(--grass); border-left-color: var(--moss); }
.rail__link[aria-current="true"] {
  color: var(--grass);
  font-weight: 700;
  border-left-color: var(--accent);
}
@media (max-width: 1100px) { .rail { display: none; } }

/* ---------- 20. 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: rgba(58, 63, 68, .65);
}
.breadcrumbs__link { transition: color .2s var(--ease); }
.breadcrumbs__link:hover { color: var(--grass); text-decoration: underline; text-underline-offset: 3px; }
.breadcrumbs__sep { opacity: .5; }
.breadcrumbs [aria-current="page"] { color: var(--stone); }

/* ---------- 21. 长文 ---------- */
.prose { font-size: 16px; line-height: 1.85; }
.prose p { max-width: 70ch; margin-bottom: 1em; }
.prose p:last-child { margin-bottom: 0; }
.prose h2 { margin-block: 1.6em .6em; }
.prose h3 { margin-block: 1.4em .5em; }
.prose ul, .prose ol { list-style: disc; padding-left: 1.25em; margin-bottom: 1em; max-width: 68ch; }
.prose li { margin-bottom: .35em; }
.prose a {
  color: var(--grass);
  text-decoration: underline;
  text-decoration-color: var(--moss);
  text-underline-offset: 3px;
  transition: text-decoration-color .2s var(--ease);
}
.prose a:hover { text-decoration-color: var(--accent); }
.prose strong { color: var(--grass); }

/* ---------- 22. 一次性淡入 ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}
.js [data-reveal][data-revealed="true"] { opacity: 1; transform: none; }

/* ---------- 23. 页脚 ---------- */
.site-footer {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin-top: clamp(40px, 7vw, 96px);
  background: var(--night);
  color: var(--paper);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 280px;
  z-index: -1;
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, rgba(199, 205, 212, .07) 0 1px, transparent 1px 72px),
    radial-gradient(120% 120% at 18% 0%, rgba(20, 90, 69, .55), transparent 62%);
}
.site-footer::after {
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: -170px;
  height: 250px;
  z-index: -1;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(closest-side, rgba(107, 143, 113, .3), transparent 76%);
}
.footer__inner {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 40px);
  padding-block: clamp(40px, 6vw, 72px) clamp(24px, 4vw, 40px);
}
.footer__brand { grid-column: span 4; }
.footer__cols {
  grid-column: span 4;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 24px);
}
.footer__contact { grid-column: span 4; }
.footer__note {
  margin-top: 18px;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 241, 232, .72);
}
.footer__meta {
  margin-top: 16px;
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(199, 205, 212, .55);
}
.footer__heading {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(199, 205, 212, .75);
}
.footer__list { display: grid; gap: 2px; }
.footer__link {
  display: inline-block;
  padding: 6px 0;
  font-size: 14.5px;
  color: rgba(244, 241, 232, .86);
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 2px;
  transition: background-size .25s var(--ease), color .2s var(--ease);
}
.footer__link:hover, .footer__link:focus-visible { color: #FFFFFF; background-size: 100% 2px; }

.contact-list { display: grid; gap: 0; }
.contact-list__item {
  display: grid;
  gap: 2px;
  padding-block: 10px;
  border-top: 1px solid rgba(199, 205, 212, .16);
}
.contact-list__item:first-child { border-top: 0; padding-top: 0; }
.contact-list__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(199, 205, 212, .7);
}
.contact-list__value {
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  overflow-wrap: anywhere;
}
.footer__contact-note {
  margin-top: 14px;
  padding-left: 12px;
  border-left: 2px solid rgba(184, 107, 75, .85);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(244, 241, 232, .6);
}
.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  padding-block: 18px;
  border-top: 1px solid rgba(199, 205, 212, .16);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: rgba(244, 241, 232, .62);
}
.footer__legal { white-space: nowrap; }
.footer__copy { white-space: nowrap; }
.footer__stamp { margin-left: auto; display: inline-flex; align-items: center; }
.footer__stamp::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---------- 24. 平板 ---------- */
@media (max-width: 1120px) {
  :root { --seasonbar-h: 32px; --bar-h: 60px; }

  .seasonbar__readout { display: none; }
  .masthead__cta { display: none; }

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

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    margin: 0;
    padding: 10px var(--gutter) 24px;
    background: var(--night);
    border-top: 1px solid var(--line-dark);
    border-bottom: 1px solid rgba(20, 90, 69, .7);
    box-shadow: 0 26px 48px rgba(11, 31, 58, .42);
    max-height: calc(100dvh - 120px);
    overflow-y: auto;
  }
  .site-nav[data-open] { display: block; }
  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .site-nav__link {
    display: block;
    padding: 14px 0;
    font-size: 15.5px;
    border-bottom: 1px solid rgba(199, 205, 212, .14);
  }
  .site-nav__link::after { display: none; }
  .site-nav__link[aria-current="page"] {
    padding-left: 12px;
    box-shadow: inset 3px 0 0 var(--accent);
  }
  .site-nav__cta {
    display: inline-flex;
    margin-top: 18px;
    width: 100%;
  }

  .footer__brand { grid-column: span 7; }
  .footer__contact { grid-column: span 5; }
  .footer__cols { grid-column: span 12; order: 3; }
  .footer__stamp { margin-left: 0; }
}

/* ---------- 25. 手机 ---------- */
@media (max-width: 760px) {
  :root { --seasonbar-h: 30px; --bar-h: 56px; }
  body { font-size: 15.5px; }
  .seasonbar { font-size: 10.5px; }
  .seasonbar__line { gap: 7px; }
  .season-btn { padding: 3px 6px; font-size: 10px; letter-spacing: .06em; }
  .brand__name { font-size: 15.5px; }
  .brand__sub { display: none; }
  .brand__mark { width: 20px; height: 20px; }
  .brand__mark::after { inset: 3px; }
  .nav-toggle { padding: 8px 10px; gap: 7px; }
  .nav-toggle__text { font-size: 10px; letter-spacing: .1em; }

  .footer__brand, .footer__contact, .footer__cols { grid-column: span 12; }
  .footer__cols { order: 2; }
  .footer__contact { order: 3; }
  .footer__note { max-width: none; }
  .footer__bottom { gap: 8px 16px; font-size: 11.5px; }
}

@media (max-width: 520px) {
  .footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__stamp { width: 100%; }
  .seasonbar__switch { gap: 0; }
  .season-btn { padding: 3px 5px; }
}

/* ---------- 26. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
  .btn:hover { transform: none; }
  .skip-link { transition: none; }
}