/* ============================================================
   易倍赛场 · 全站共享样式
   路径：/assets/site.css
   ============================================================ */

/* ---------- 设计变量 ---------- */
:root {
  --color-bg: #F4F7FB;
  --color-ink: #0B1F3A;
  --color-ink-soft: #51627A;
  --color-muted: #8A97A9;
  --color-orange: #FF6A00;
  --color-orange-deep: #E85F00;
  --color-blue: #2D8FDB;
  --color-white: #FFFFFF;
  --color-green: #3FAE6A;
  --color-gold: #D4A72C;
  --color-teal: #00C2A8;
  --color-gray: #E8ECF0;
  --font-display: "Impact", "Haettenschweiler", "Roboto Condensed", "DIN Condensed", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: "SFMono-Regular", "JetBrains Mono", "Roboto Mono", Consolas, "Liberation Mono", monospace;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 20px rgba(11, 31, 58, .06);
  --shadow-pop: 0 18px 50px rgba(11, 31, 58, .16);
  --ease-out: cubic-bezier(.22, 1, .36, 1);
  --container-w: 1200px;
  --header-h: 72px;
}

/* ---------- Reset 与基础排版 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
main { display: block; flex: 1 0 auto; width: 100%; }
#main-content { scroll-margin-top: calc(var(--header-h) + 48px); }
h1, h2, h3, h4, p, figure, blockquote { margin-top: 0; }
ul, ol { margin-top: 0; padding-left: 1.25em; }
a { color: var(--color-blue); }
img, svg, video { max-width: 100%; display: block; height: auto; }
address { font-style: normal; }
blockquote {
  margin: 24px 0;
  padding: 4px 0 4px 20px;
  border-left: 3px solid var(--color-orange);
  color: var(--color-ink-soft);
}
hr { border: 0; border-top: 1px solid var(--color-gray); margin: 44px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { padding: 12px 14px; border-bottom: 1px solid var(--color-gray); text-align: left; }
th { font-weight: 700; color: var(--color-ink); }
pre, code { font-family: var(--font-mono); font-size: .92em; background: rgba(11, 31, 58, .05); border-radius: 6px; padding: 2px 6px; }
::selection { background: var(--color-ink); color: var(--color-white); }

/* ---------- 焦点可见 ---------- */
:focus-visible { outline: 3px solid var(--color-orange); outline-offset: 2px; border-radius: 4px; }

/* ---------- 顶部滚动进度 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 1200;
  pointer-events: none;
  background: transparent;
}
.scroll-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left top;
  background: linear-gradient(90deg, var(--color-orange) 0%, var(--color-blue) 55%, var(--color-teal) 100%);
}

/* ---------- 跳过链接 ---------- */
.skip-link {
  position: fixed;
  top: 12px;
  left: 50%;
  z-index: 1300;
  transform: translate(-50%, -300%);
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  background: var(--color-ink);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: var(--shadow-pop);
  transition: transform .25s var(--ease-out);
}
.skip-link:focus { transform: translate(-50%, 0); }

/* ---------- 头部 · 浮岛胶囊 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1100;
  padding: 14px 16px 0;
  pointer-events: none;
}
.site-header-inner {
  position: relative;
  max-width: calc(var(--container-w) + 48px);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px 8px 16px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, .88);
  -webkit-backdrop-filter: blur(18px) saturate(1.5);
  backdrop-filter: blur(18px) saturate(1.5);
  border: 1px solid rgba(232, 236, 240, .92);
  box-shadow: 0 10px 36px rgba(11, 31, 58, .08);
  pointer-events: auto;
}
.header-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: none;
  text-decoration: none;
  color: var(--color-ink);
}
.header-brand:hover .brand-mark { transform: rotate(-4deg); }
.brand-mark {
  position: relative;
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-ink);
  display: grid;
  place-items: center;
  overflow: hidden;
  box-shadow: 0 4px 10px rgba(11, 31, 58, .25);
  transition: transform .3s var(--ease-out);
}
.brand-mark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 11px;
  background: var(--color-orange);
}
.brand-mark--light { background: var(--color-white); box-shadow: none; }
.brand-mark--light::after { background: var(--color-blue); }
.brand-mark--light .brand-mark__play { border-left-color: var(--color-ink); }
.brand-mark__play {
  position: relative;
  z-index: 1;
  width: 0;
  height: 0;
  border-left: 10px solid var(--color-white);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  margin-left: 3px;
}
.header-brand__text, .footer-brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.header-brand__cn {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: .06em;
}
.header-brand__en {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .24em;
  color: var(--color-muted);
  text-transform: uppercase;
}
.header-panel {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.site-nav { display: flex; align-items: center; gap: 2px; margin-inline: auto; }
.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 13px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-ink-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: background .25s var(--ease-out), color .25s var(--ease-out);
}
.site-nav a:hover { background: var(--color-bg); color: var(--color-ink); }
.site-nav a[aria-current="page"] { color: var(--color-ink); font-weight: 700; }
.site-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-blue);
}
.header-actions { flex: none; display: flex; align-items: center; gap: 8px; }
.header-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out), background .25s var(--ease-out), border-color .25s var(--ease-out);
}
.header-pill--primary {
  background: var(--color-orange);
  color: var(--color-white);
  box-shadow: 0 6px 16px rgba(255, 106, 0, .3);
}
.header-pill--primary:hover {
  background: var(--color-orange-deep);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(255, 106, 0, .34);
}
.header-pill--ghost {
  border: 1px solid var(--color-gray);
  background: rgba(244, 247, 251, .8);
  color: var(--color-ink);
}
.header-pill--ghost:hover { border-color: var(--color-blue); color: var(--color-blue); transform: translateY(-1px); }
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--color-gray);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  color: var(--color-ink);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color .25s var(--ease-out), background .25s var(--ease-out);
}
.nav-toggle:hover { border-color: var(--color-blue); }
.nav-toggle__lines { display: grid; gap: 4px; width: 16px; }
.nav-toggle__lines span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .25s var(--ease-out), opacity .25s var(--ease-out);
}
.nav-toggle__text { font-size: 14px; font-weight: 600; }
.nav-toggle[aria-expanded="true"] .nav-toggle__lines span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__lines span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__lines span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: auto;
  overflow: hidden;
  background: var(--color-ink);
  color: rgba(255, 255, 255, .8);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-blue), var(--color-teal), var(--color-gold));
}
.site-footer__main {
  max-width: calc(var(--container-w) + 80px);
  margin-inline: auto;
  padding: 68px 24px 48px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 48px 40px;
}
.footer-about { display: flex; flex-direction: column; align-items: flex-start; }
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  color: var(--color-white);
  text-decoration: none;
}
.footer-brand:hover .brand-mark { transform: rotate(-4deg); }
.footer-brand__cn {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: .06em;
}
.footer-brand__en {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .24em;
  color: rgba(255, 255, 255, .5);
  text-transform: uppercase;
}
.footer-about__desc {
  max-width: 320px;
  margin-bottom: 18px;
  color: rgba(255, 255, 255, .68);
  font-size: 15px;
  line-height: 1.75;
}
.footer-trust {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid rgba(63, 174, 106, .4);
  background: rgba(63, 174, 106, .12);
  border-radius: var(--radius-pill);
  color: #B9E4C7;
  font-size: 13px;
  line-height: 1.4;
}
.footer-title {
  margin: 0 0 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .45);
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  color: rgba(255, 255, 255, .78);
  text-decoration: none;
  font-size: 15px;
  transition: color .25s var(--ease-out), padding-left .25s var(--ease-out);
}
.footer-links a:hover { color: var(--color-white); padding-left: 4px; }
.footer-contact { display: flex; flex-direction: column; }
.footer-contact p { margin: 0 0 12px; font-size: 15px; line-height: 1.5; color: rgba(255, 255, 255, .8); }
.footer-contact p > span {
  display: block;
  margin-bottom: 2px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .4);
}
.site-footer .footer-contact .footer-contact__note {
  margin-bottom: 0;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  color: rgba(255, 255, 255, .5);
  font-size: 13px;
}
.site-footer__bottom {
  max-width: calc(var(--container-w) + 80px);
  margin-inline: auto;
  padding: 20px 24px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, .5);
}

/* ---------- 布局容器 ---------- */
.container { max-width: var(--container-w); margin-inline: auto; padding-inline: 24px; }
.container-narrow { max-width: 820px; margin-inline: auto; padding-inline: 24px; }

/* ---------- 子页页头 ---------- */
.page-header { padding: calc(var(--header-h) + 56px) 0 40px; }
.page-header__index {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--color-orange);
}
.page-header__index::before { content: ""; width: 32px; height: 2px; background: var(--color-orange); }
.page-header h1 {
  margin: 14px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(40px, 7vw, 64px);
  line-height: .95;
  letter-spacing: .01em;
  text-transform: uppercase;
}
.page-header__lead { max-width: 640px; margin-bottom: 0; font-size: 17px; line-height: 1.7; color: var(--color-ink-soft); }

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--color-muted);
}
.breadcrumbs a { color: var(--color-blue); text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-orange); text-decoration: underline; }
.breadcrumbs__sep { color: var(--color-gray); pointer-events: none; }
.breadcrumbs [aria-current="page"] { color: var(--color-ink); font-weight: 600; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: var(--color-white);
  color: var(--color-ink);
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out), background .25s var(--ease-out), border-color .25s var(--ease-out), color .25s var(--ease-out);
}
.btn:hover { transform: translateY(-2px); }
.btn--primary {
  background: var(--color-orange);
  color: var(--color-white);
  box-shadow: 0 8px 22px rgba(255, 106, 0, .28);
}
.btn--primary:hover { background: var(--color-orange-deep); box-shadow: 0 12px 30px rgba(255, 106, 0, .32); }
.btn--dark { background: var(--color-ink); color: var(--color-white); }
.btn--dark:hover { background: #142B4D; box-shadow: 0 12px 30px rgba(11, 31, 58, .3); }
.btn--outline { border-color: var(--color-gray); background: transparent; color: var(--color-ink); }
.btn--outline:hover { border-color: var(--color-blue); color: var(--color-blue); background: rgba(45, 143, 219, .06); }
.btn--teal { background: var(--color-teal); color: var(--color-ink); }
.btn--teal:hover { background: #00DCC0; box-shadow: 0 12px 30px rgba(0, 194, 168, .3); }
.btn--block { display: flex; width: 100%; }
.btn--sm { padding: 9px 18px; font-size: 14px; }
.btn--lg { padding: 16px 34px; font-size: 17px; }

/* ---------- 链接 ---------- */
.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-orange);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  transition: color .25s var(--ease-out);
}
.link-more::after { content: "→"; display: inline-block; transition: transform .25s var(--ease-out); }
.link-more:hover { color: var(--color-orange-deep); }
.link-more:hover::after { transform: translateX(4px); }

/* ---------- 标题与章节 ---------- */
.display-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(42px, 8vw, 72px);
  line-height: .92;
  letter-spacing: .01em;
  text-transform: uppercase;
}
.display-title--sm { font-size: clamp(30px, 5vw, 48px); line-height: 1; }
.section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin: 0 0 28px;
}
.section-head__index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--color-orange);
  white-space: nowrap;
}
.section-head h2,
.section-head .section-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4.5vw, 44px);
  line-height: 1;
  letter-spacing: .01em;
  text-transform: uppercase;
}
.section-head__link { margin-left: auto; }
.print-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 4px;
  border-bottom: 2px solid var(--color-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--color-ink);
}
.divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 40px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.divider::before, .divider::after { content: ""; height: 1px; background: var(--color-gray); flex: 1; }

/* ---------- 网格 ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-gap-sm { gap: 16px; }
.grid-gap-lg { gap: 40px; }

/* ---------- 卡片 ---------- */
.card {
  padding: 28px;
  border: 1px solid rgba(232, 236, 240, .9);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  box-shadow: var(--shadow-card);
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out);
}
.card:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(11, 31, 58, .1); }
.card--flat { padding: 0; border-color: transparent; background: transparent; box-shadow: none; }
.card--flat:hover { transform: none; box-shadow: none; }
.card--accent { border-top: 3px solid var(--color-orange); }
.card__title {
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.2;
  text-transform: uppercase;
}
.card__text { margin-bottom: 16px; color: var(--color-ink-soft); }

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
  background: rgba(45, 143, 219, .1);
  color: var(--color-blue);
}
.tag--orange { background: rgba(255, 106, 0, .1); color: var(--color-orange-deep); }
.tag--green { background: rgba(63, 174, 106, .14); color: var(--color-green); }
.tag--gold { background: rgba(212, 167, 44, .16); color: #A38420; }
.tag--teal { background: rgba(0, 194, 168, .12); color: #0B8F7E; }

/* ---------- 数据块 ---------- */
.stat { display: flex; flex-direction: column; gap: 6px; }
.stat__value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 44px;
  line-height: 1;
  color: var(--color-ink);
  font-variant-numeric: tabular-nums;
}
.stat__value--orange { color: var(--color-orange); }
.stat__value--teal { color: var(--color-teal); }
.stat__value--gold { color: var(--color-gold); }
.stat__label { font-size: 13px; letter-spacing: .08em; color: var(--color-muted); }

/* ---------- 色带与斜切 ---------- */
.bg-band { padding: 56px 0; background: var(--color-ink); color: var(--color-white); }
.bg-band--blue { background: var(--color-blue); }
.bg-band--orange { background: var(--color-orange); }
.bg-band--teal { background: var(--color-teal); color: var(--color-ink); }
.bg-band--gold { background: var(--color-gold); color: var(--color-ink); }
.clip-angle-right { clip-path: polygon(0 0, calc(100% - 48px) 0, 100% 100%, 0 100%); }
.clip-angle-left { clip-path: polygon(48px 0, 100% 0, 100% 100%, 0 100%); }
.corner-cut { clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), 0 100%); }

/* ---------- 图片容器 ---------- */
.image-frame {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 16px;
  background: var(--color-gray);
}
.image-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease-out); }
.image-frame:hover img { transform: scale(1.03); }
.image-frame--ratio16x9 { aspect-ratio: 16 / 9; }
.image-frame--ratio4x3 { aspect-ratio: 4 / 3; }
.image-frame--ratio1x1 { aspect-ratio: 1 / 1; }
.image-frame--skew { transform: rotate(-1.2deg); }
.image-frame--skew-rev { transform: rotate(1.2deg); }

/* ---------- 文本工具 ---------- */
.text-center { text-align: center; }
.text-muted { color: var(--color-muted); }
.text-lead { font-size: 17px; line-height: 1.75; color: var(--color-ink-soft); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ---------- 滚动显现 ---------- */
[data-reveal] { opacity: 1; transform: none; }
body.reveal-enabled [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .55s var(--ease-out), transform .55s var(--ease-out); }
body.reveal-enabled [data-reveal].is-revealed { opacity: 1; transform: translateY(0); }

/* ---------- 响应式 · 头部与导航 ---------- */
@media (max-width: 920px) {
  .site-header { padding-top: 10px; }
  .site-header-inner { border-radius: 22px; padding: 8px 8px 8px 14px; gap: 4px; }
  .header-brand { flex: 1; min-width: 0; }
  .header-brand__en { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-panel {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 8px;
    border: 1px solid var(--color-gray);
    border-radius: 18px;
    background: rgba(255, 255, 255, .98);
    box-shadow: var(--shadow-pop);
  }
  .site-header[data-open] .header-panel { display: flex; }
  .site-nav { flex-direction: column; align-items: stretch; gap: 2px; width: 100%; margin-inline: 0; }
  .site-nav a { padding: 12px 16px; font-size: 16px; }
  .site-nav a[aria-current="page"] { background: rgba(45, 143, 219, .08); }
  .site-nav a[aria-current="page"]::after { left: 16px; right: auto; width: 28px; bottom: 6px; }
  .header-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    margin-top: 6px;
    padding-top: 10px;
    border-top: 1px solid var(--color-gray);
  }
  .header-pill { padding: 11px 16px; }
}

/* ---------- 响应式 · 页脚 ---------- */
@media (max-width: 1000px) {
  .site-footer__main { grid-template-columns: 1fr 1fr; gap: 40px 32px; }
}
@media (max-width: 640px) {
  .site-footer__main { grid-template-columns: 1fr; padding-top: 48px; gap: 32px; }
  .site-footer__bottom { flex-direction: column; align-items: flex-start; }
}

/* ---------- 响应式 · 网格 ---------- */
@media (max-width: 920px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 减动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  body *, body *::before, body *::after {
    animation-duration: .001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001s !important;
  }
}