/* ============================================================
   四季体育赛场 · 共享站点外壳
   高原日照橙 / 球场草绿 / 红土砖红 / 夜赛深蓝 / 琥珀高亮 / 纸感米白
   ============================================================ */

:root {
  --orange: #F26522;
  --green: #1F7A3D;
  --clay: #A6402A;
  --night: #0E1B33;
  --amber: #FFB020;
  --paper: #F6EFE4;
  --card: #FFFFFF;
  --ink: #2A2E35;
  --mint: #CFE8D5;
  --peach: #FFD9C2;
  --slate: #5C6470;
  --rule: rgba(42, 46, 53, 0.18);
  --rule-light: rgba(246, 239, 228, 0.18);
  --font-display: "Source Han Sans SC", "Noto Sans SC", "Alibaba PuHuiTi", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-num: ui-monospace, "Roboto Mono", "DIN Alternate", "SFMono-Regular", Menlo, monospace;
  --wrap: 1180px;
  --gut: clamp(16px, 3vw, 40px);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

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

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

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

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

button { font: inherit; color: inherit; }

/* ---------- base ---------- */
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

p { line-height: 1.85; }

a { color: inherit; }

#main-content { scroll-margin-top: 24px; }

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

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

/* ---------- skip link ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 12px;
  z-index: 999;
  padding: 10px 18px;
  background: var(--night);
  color: var(--paper);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  border: 1px solid var(--amber);
  border-radius: 2px;
  transform: translateY(-180%);
  transition: transform 0.2s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* ---------- 通用排版 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-inline: var(--gut);
}

.num {
  font-family: var(--font-num);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--clay);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--orange);
}

.title-xl {
  font-size: clamp(34px, 6vw, 76px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  transform: skewX(-2deg);
  transform-origin: left bottom;
}

.title-lg {
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.lede {
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.85;
  color: var(--slate);
  max-width: 56ch;
}

.body-text { font-size: 17px; line-height: 1.85; }

.note-vertical {
  writing-mode: vertical-rl;
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--slate);
}

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

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

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px clamp(16px, 3vw, 40px);
  padding-bottom: 10px;
  margin-bottom: clamp(20px, 3vw, 32px);
  border-bottom: 1px solid var(--ink);
}

.section-head__title {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 900;
  line-height: 1.2;
}

.section-head__note {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--slate);
}

/* ---------- 按钮与链接 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 10px 18px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.4;
  text-decoration: none;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease),
    background-color 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

.btn--amber {
  background: var(--amber);
  color: var(--night);
  border-color: var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
}

.btn--amber:hover {
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 var(--ink);
}

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

.btn--ghost:hover {
  background: var(--peach);
}

.btn--night {
  background: var(--night);
  color: var(--paper);
  border-color: var(--night);
}

.btn--night:hover { background: #182c50; }

.btn--orange {
  background: var(--orange);
  color: #FFFFFF;
  border-color: var(--clay);
  box-shadow: 3px 3px 0 rgba(14, 27, 51, 0.45);
}

.btn--orange:hover {
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 rgba(14, 27, 51, 0.55);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--clay);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  padding-bottom: 2px;
}

.link-arrow::after {
  content: "→";
  transition: transform 0.2s var(--ease);
}

.link-arrow:hover::after { transform: translateX(3px); }

/* ---------- 卡片 / 标签 ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--ink);
  border-radius: 2px;
  padding: clamp(16px, 2.4vw, 26px);
}

.card--paper {
  background: var(--paper);
  box-shadow: 4px 4px 0 rgba(42, 46, 53, 0.14);
}

.card--night {
  background: var(--night);
  color: var(--paper);
  border-color: var(--night);
}

.card__label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--slate);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.6;
  border-radius: 2px;
  background: var(--mint);
  color: #14432A;
}

.tag--green { background: var(--green); color: #FFFFFF; }
.tag--orange { background: var(--orange); color: #FFFFFF; }
.tag--clay { background: var(--clay); color: #FFFFFF; }

/* ---------- 网格 ---------- */
.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}

.grid--editorial {
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

.grid__main { grid-column: span 7; }
.grid__aside { grid-column: span 4; }

/* ---------- 面包屑 ---------- */
.breadcrumb {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

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

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: var(--slate);
  opacity: 0.55;
}

.breadcrumb__link {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

.breadcrumb__current {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 图片容器（页面阶段放置图片） ---------- */
.media {
  position: relative;
  overflow: hidden;
  background: var(--mint);
  border: 1px solid var(--ink);
  border-radius: 2px;
}

.media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

.media__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 4px 10px;
  background: var(--night);
  color: var(--paper);
  font-size: 11px;
  letter-spacing: 0.2em;
  line-height: 1.6;
}

.media--slant {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.media--tall .media__img { aspect-ratio: 3 / 4; }

/* ============================================================
   头部
   ============================================================ */
.site-header {
  position: relative;
  z-index: 40;
  background: var(--paper);
}

.masthead {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 18px var(--gut) 14px;
}

.masthead__rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  align-self: stretch;
  gap: 10px;
  padding-right: 10px;
  border-right: 1px solid var(--rule);
}

.rail-mark {
  writing-mode: vertical-rl;
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--slate);
}

.rail-season {
  writing-mode: vertical-rl;
  font-size: 13px;
  color: var(--clay);
}

.masthead__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-align: center;
  min-width: 0;
}

.masthead__kicker {
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--slate);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  transform: skewX(-3deg);
}

.brand__mark {
  width: 12px;
  height: 12px;
  flex: 0 0 auto;
  background: var(--orange);
  transform: rotate(45deg);
}

.brand__name {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
}

.brand__suffix {
  padding: 3px 7px;
  background: var(--green);
  color: #FFFFFF;
  font-size: clamp(11px, 1.2vw, 13px);
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.5;
  transform: skewX(3deg);
}

.masthead__tagline {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--slate);
}

.masthead__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 2px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background-color 0.2s var(--ease);
}

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 16px;
}

.nav-toggle__bars span {
  display: block;
  height: 2px;
  background: var(--ink);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* 主导航 */
.site-nav {
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: var(--card);
}

.site-nav__inner {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-inline: var(--gut);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.nav-list > li + li { border-left: 1px solid var(--rule); }

.nav-link {
  position: relative;
  display: block;
  padding: 14px clamp(12px, 2vw, 24px);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.nav-link:hover,
.nav-link:focus-visible { background: var(--peach); }

.nav-link[aria-current="page"] { color: var(--clay); }

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: clamp(12px, 2vw, 24px);
  right: clamp(12px, 2vw, 24px);
  bottom: 6px;
  height: 3px;
  background: var(--orange);
}

/* 联赛导航带 */
.league-band {
  background: var(--orange);
  color: var(--night);
  border-bottom: 1px solid var(--ink);
}

.league-band__inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 20px);
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 8px var(--gut);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.league-band__label {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.3em;
  white-space: nowrap;
}

.league-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.league-tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  white-space: nowrap;
  color: var(--night);
  border: 1px solid rgba(14, 27, 51, 0.45);
  border-radius: 999px;
}

.league-band__more {
  flex: 0 0 auto;
  margin-left: auto;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  white-space: nowrap;
  color: var(--night);
  text-decoration: none;
  border-bottom: 2px solid var(--night);
  padding-bottom: 1px;
}

.league-band__more:hover { color: #FFFFFF; border-bottom-color: #FFFFFF; }

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  margin-top: clamp(48px, 7vw, 96px);
  background: var(--night);
  color: var(--paper);
  border-top: 4px solid var(--orange);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.15fr 1.6fr 1.2fr;
  gap: clamp(24px, 4vw, 48px);
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(32px, 5vw, 56px) var(--gut) clamp(24px, 4vw, 40px);
}

.footer__brand { min-width: 0; }

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--paper);
  transform: skewX(-3deg);
}

.footer-brand__name {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
}

.footer-brand__suffix {
  padding: 2px 7px;
  background: var(--green);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.6;
  transform: skewX(3deg);
}

.footer__tagline {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--amber);
}

.footer__note {
  margin-top: 12px;
  max-width: 32ch;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 239, 228, 0.72);
}

.footer__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.footer__chip {
  padding: 3px 9px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mint);
  border: 1px solid rgba(246, 239, 228, 0.28);
  border-radius: 2px;
}

.footer__nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2.5vw, 28px);
  min-width: 0;
}

.footer__col { min-width: 0; }

.footer__col-title {
  padding-bottom: 8px;
  margin-bottom: 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.28em;
  color: var(--amber);
  border-bottom: 1px solid var(--rule-light);
}

.footer__list > li + li { margin-top: 8px; }

.footer__link {
  display: inline-block;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(246, 239, 228, 0.82);
  text-decoration: none;
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.footer__link:hover {
  color: #FFFFFF;
  transform: translateX(2px);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--orange);
}

.footer__contact { min-width: 0; }

.footer__contact-list { margin-top: 0; }

.footer__contact-item {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  padding: 7px 0;
  border-bottom: 1px dashed rgba(246, 239, 228, 0.14);
}

.footer__contact-label {
  flex: 0 0 auto;
  min-width: 60px;
  font-size: 11px;
  letter-spacing: 0.18em;
  line-height: 1.9;
  color: var(--mint);
}

.footer__contact-value {
  flex: 1 1 auto;
  font-size: 13px;
  line-height: 1.9;
  color: rgba(246, 239, 228, 0.9);
  word-break: break-word;
}

.footer__cta { margin-top: 16px; }

/* 反馈停靠位：页脚内与页面正文末尾通用 */
.feedback-dock {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px clamp(16px, 3vw, 32px);
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(16px, 2.4vw, 22px) var(--gut);
  background: #132340;
  color: var(--paper);
  border: 1px solid rgba(246, 239, 228, 0.16);
  border-left: 4px solid var(--orange);
  border-radius: 2px;
}

.feedback-dock__text {
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 239, 228, 0.86);
}

.feedback-dock__action { flex: 0 0 auto; }

.site-footer__bar {
  margin-top: 8px;
  border-top: 1px solid var(--rule-light);
}

.site-footer__bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px clamp(16px, 3vw, 32px);
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 16px var(--gut) 24px;
}

.footer__copy {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(246, 239, 228, 0.6);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}

.footer__legal-link {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(246, 239, 228, 0.75);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.footer__legal-link:hover {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ============================================================
   阅读进度 / 入场显现（由 site.js 驱动）
   ============================================================ */
.read-progress {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  height: 3px;
  background: rgba(42, 46, 53, 0.12);
  pointer-events: none;
}

.read-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--orange) 0%, var(--amber) 100%);
  transition: width 0.1s linear;
}

.js-ready [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}

.js-ready [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
  }
  .footer__brand { grid-column: 1 / -1; }
  .footer__contact { grid-column: 1 / -1; }
  .footer__contact-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 clamp(16px, 3vw, 32px);
  }
}

@media (max-width: 900px) {
  .masthead {
    grid-template-columns: minmax(0, 1fr) auto;
    row-gap: 12px;
    padding: 14px var(--gut) 12px;
  }
  .masthead__rail { display: none; }
  .masthead__brand {
    align-items: flex-start;
    text-align: left;
  }
  .masthead__actions {
    grid-column: 1 / -1;
    flex-wrap: wrap;
    justify-content: flex-start;
  }
  .nav-toggle { display: inline-flex; }

  .site-nav {
    max-height: none;
    overflow: visible;
    border-top: 1px solid var(--ink);
  }
  .js-ready .site-nav {
    max-height: 0;
    overflow: hidden;
    border-top: 0;
    transition: max-height 0.28s var(--ease), border-color 0.2s var(--ease);
  }
  .js-ready .site-header[data-open] .site-nav {
    max-height: 78vh;
    overflow-y: auto;
    border-top: 1px solid var(--ink);
  }
  .nav-list { flex-direction: column; }
  .nav-list > li + li {
    border-left: 0;
    border-top: 1px solid var(--rule);
  }
  .nav-link {
    padding: 14px 4px;
    font-size: 16px;
  }
  .nav-link[aria-current="page"]::after {
    left: 4px;
    right: auto;
    width: 24px;
  }

  .grid--editorial { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid__main { grid-column: 1 / -1; }
  .grid__aside { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .site-footer__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }
  .footer__nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__contact-list { grid-template-columns: minmax(0, 1fr); }
  .feedback-dock { flex-direction: column; align-items: flex-start; }
  .feedback-dock__action { width: 100%; }
  .site-footer__bar-inner { flex-direction: column; align-items: flex-start; }
  .league-band__more { display: none; }
  .masthead__kicker { letter-spacing: 0.18em; }
}

@media (max-width: 420px) {
  .brand { gap: 8px; }
  .masthead__actions .btn { flex: 1 1 auto; }
  .footer__nav { grid-template-columns: minmax(0, 1fr); }
}

/* ============================================================
   减弱动态
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .js-ready [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .read-progress__bar { transition: none; }
  .btn--amber:hover,
  .btn--orange:hover { transform: none; }
  .footer__link:hover { transform: none; }
}