/* ==========================================================================
   米乐赛场 — 全站共享样式表  /assets/site.css
   夜间赛场数据台 · 侧轨导览 · 粗野主义边框
   ========================================================================== */

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

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

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

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

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

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

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

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

/* --------------------------------------------------
   2. 设计令牌
   -------------------------------------------------- */
:root {
  /* 色板 */
  --ink:      #060A18;
  --panel:    #0C1A33;
  --green:    #3DF28A;
  --amber:    #FFA23A;
  --violet:   #8B5CF6;
  --wine:     #5A1530;
  --teal:     #0B3B36;
  --indigo:   #241A5C;
  --text:     #E9F1F8;
  --muted:    #93A6BF;
  --line:     #1E2E4A;

  /* 结构 */
  --rail-w:   124px;
  --header-h: 62px;
  --maxw:     1240px;
  --gutter:   clamp(16px, 4vw, 40px);

  /* 阴影 */
  --shadow-hard: 8px 8px 0 0 var(--line);
  --shadow-soft: 4px 4px 0 0 var(--line);

  /* 字体 */
  --font-display: "Oswald", "Barlow Condensed", "Noto Sans SC", sans-serif;
  --font-serif:   "Noto Serif SC", "Songti SC", serif;
  --font-body:    "Inter", "HarmonyOS Sans SC", "Noto Sans SC", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "Courier New", monospace;

  --ease: cubic-bezier(.2, .7, .3, 1);
}

/* --------------------------------------------------
   3. 中文排版基底
   -------------------------------------------------- */
body {
  min-height: 100vh;
  padding-left: var(--rail-w);
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: .02em;
}

h1 { font-size: clamp(30px, 5vw, 54px); }
h2 { font-size: clamp(24px, 3.4vw, 36px); }
h3 { font-size: clamp(19px, 2.2vw, 24px); }

p { text-wrap: pretty; }

strong { color: var(--green); font-weight: 600; }

::selection { background: var(--green); color: var(--ink); }

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
}

/* --------------------------------------------------
   4. 通用容器与网格
   -------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding: clamp(46px, 6.5vw, 84px) 0; }

.grid { display: grid; gap: 22px; }
.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)); }

.rule {
  height: 2px;
  border: 0;
  background: var(--line);
}
.rule--dashed {
  background: repeating-linear-gradient(90deg, var(--line) 0 8px, transparent 8px 18px);
}

/* --------------------------------------------------
   5. 跳转链接
   -------------------------------------------------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  transform: translateY(-220%);
  padding: 10px 14px;
  background: var(--green);
  color: var(--ink);
  border: 2px solid var(--ink);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

/* --------------------------------------------------
   6. 头部 · 侧轨
   -------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--rail-w);
  z-index: 60;
  background:
    linear-gradient(180deg, rgba(61, 242, 138, .07) 0%, rgba(61, 242, 138, 0) 26%),
    var(--panel);
  border-right: 2px solid var(--line);
}

.rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: 100%;
  padding: 18px 12px 20px;
  overflow-y: auto;
  overscroll-behavior: contain;
}

/* 品牌块 */
.rail__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 2px solid var(--green);
  color: var(--green);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  box-shadow: 4px 4px 0 0 rgba(61, 242, 138, .22);
  transition: background-color .2s var(--ease), color .2s var(--ease),
              box-shadow .2s var(--ease), transform .2s var(--ease);
}

.brand:hover .brand__mark,
.brand:focus-visible .brand__mark {
  background: var(--green);
  color: var(--ink);
  box-shadow: 2px 2px 0 0 rgba(61, 242, 138, .35);
  transform: translate(2px, 2px);
}

.brand__name {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .16em;
  line-height: 1;
  writing-mode: vertical-rl;
  text-orientation: upright;
  color: var(--text);
}

.rail__tagline,
.rail__domain { display: none; }

.rail__rule {
  display: block;
  height: 2px;
  background: repeating-linear-gradient(90deg, rgba(61, 242, 138, .7) 0 6px, transparent 6px 14px);
}

.rail__eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-align: center;
  color: rgba(147, 166, 191, .55);
}

/* 导航列表 */
.rail__nav { flex: 1 1 auto; }

.rail__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rail__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 9px 3px;
  color: var(--muted);
  border-top: 2px solid transparent;
  border-bottom: 2px solid transparent;
  transition: color .18s var(--ease), background-color .18s var(--ease),
              border-color .18s var(--ease);
}

.rail__index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: rgba(30, 46, 74, 1);
  transition: color .18s var(--ease);
}

.rail__label {
  font-size: 13.5px;
  letter-spacing: .06em;
}

.rail__link:hover,
.rail__link:focus-visible {
  color: var(--text);
  border-top-color: var(--green);
  border-bottom-color: var(--green);
  background: rgba(61, 242, 138, .07);
}
.rail__link:hover .rail__index,
.rail__link:focus-visible .rail__index { color: var(--green); }

.rail__link[aria-current="page"] {
  background: var(--green);
  color: var(--ink);
  border-top-color: var(--green);
  border-bottom-color: var(--green);
}
.rail__link[aria-current="page"] .rail__index { color: rgba(6, 10, 24, .5); }

/* 行动入口 */
.rail__actions {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 2px solid var(--line);
}
.rail__actions .btn {
  padding: 9px 4px;
  font-size: 12px;
  letter-spacing: .02em;
  text-align: center;
  line-height: 1.35;
}

/* 移动端顶部条（桌面隐藏） */
.topbar { display: none; }

/* 抽屉遮罩（桌面隐藏） */
.nav-scrim { display: none; }

/* --------------------------------------------------
   7. 按钮
   -------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  background: transparent;
  color: var(--text);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-soft);
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: .08em;
  cursor: pointer;
  transition: background-color .18s var(--ease), color .18s var(--ease),
              border-color .18s var(--ease), box-shadow .18s var(--ease),
              transform .18s var(--ease);
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--green);
  background: var(--green);
  color: var(--ink);
  box-shadow: 2px 2px 0 0 var(--line);
  transform: translate(2px, 2px);
}

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

.btn--ghost {
  background: transparent;
  color: var(--muted);
  border-color: var(--line);
}
.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: var(--green);
  border-color: var(--green);
  color: var(--ink);
}

/* --------------------------------------------------
   8. 内联链接 · 由左向右展开的下划线
   -------------------------------------------------- */
.link {
  color: var(--green);
  background-image: linear-gradient(var(--green), var(--green));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 2px;
  padding-bottom: 2px;
  transition: background-size .28s var(--ease), color .2s var(--ease);
}
.link:hover,
.link:focus-visible { background-size: 100% 2px; }

/* --------------------------------------------------
   9. 标签 / 徽章
   -------------------------------------------------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 2px solid currentColor;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  line-height: 1.5;
  white-space: nowrap;
}
.tag--green  { color: var(--green); }
.tag--amber  { color: var(--amber); }
.tag--violet { color: var(--violet); }
.tag--muted  { color: var(--muted); }
.tag--solid  { background: var(--green); color: var(--ink); border-color: var(--green); }

/* --------------------------------------------------
   10. 展览说明牌
   -------------------------------------------------- */
.plate {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin-bottom: 22px;
  padding: 12px 16px;
  background: var(--panel);
  border: 2px solid var(--line);
  border-left: 6px solid var(--green);
}
.plate__index {
  font-family: var(--font-serif);
  font-size: 26px;
  line-height: 1;
  color: var(--green);
}
.plate__name {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text);
}
.plate__note {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

/* --------------------------------------------------
   11. 数据卡片
   -------------------------------------------------- */
.card {
  position: relative;
  padding: 22px;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease),
              transform .2s var(--ease);
}
.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--line);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.card__body { font-size: 15px; color: var(--text); }

@media (hover: hover) {
  .card:hover {
    border-color: var(--green);
    box-shadow: 4px 4px 0 0 var(--line);
    transform: translate(4px, 4px);
  }
}

/* --------------------------------------------------
   12. 大号数字
   -------------------------------------------------- */
.num {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
  line-height: .92;
  color: var(--text);
}
.num--hero {
  font-size: clamp(56px, 12vw, 140px);
  color: var(--green);
}
.num--lg { font-size: clamp(34px, 5.5vw, 48px); }

/* --------------------------------------------------
   13. 专题分区色块
   -------------------------------------------------- */
.zone {
  border: 2px solid var(--line);
  background: var(--panel);
}
.zone--wine {
  background: linear-gradient(158deg, var(--wine) 0%, var(--panel) 62%);
}
.zone--teal {
  background: linear-gradient(158deg, var(--teal) 0%, var(--panel) 62%);
}
.zone--indigo {
  background: linear-gradient(158deg, var(--indigo) 0%, var(--panel) 62%);
}

/* --------------------------------------------------
   14. 图片容器（页面阶段放置 img）
   -------------------------------------------------- */
.figure { margin: 0; }

.figure__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 2px solid var(--line);
  background:
    repeating-linear-gradient(135deg, rgba(61, 242, 138, .05) 0 12px, transparent 12px 24px),
    linear-gradient(160deg, var(--indigo) 0%, var(--ink) 100%);
}

.figure__media--wide   { aspect-ratio: 21 / 9; }
.figure__media--square { aspect-ratio: 1 / 1; }
.figure__media--tall   { aspect-ratio: 3 / 4; }

.figure__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s var(--ease);
}

@media (hover: hover) {
  .figure:hover .figure__media img { transform: scale(1.035); }
}

.figure__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

/* --------------------------------------------------
   15. 面包屑
   -------------------------------------------------- */
.breadcrumbs {
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}
.breadcrumbs a { color: var(--muted); transition: color .18s var(--ease); }
.breadcrumbs a:hover,
.breadcrumbs a:focus-visible { color: var(--green); }

/* --------------------------------------------------
   16. 页脚
   -------------------------------------------------- */
.site-footer {
  margin-top: clamp(56px, 8vw, 104px);
  background: var(--panel);
  border-top: 2px solid var(--line);
}

.footer-band {
  display: flex;
  height: 10px;
}
.footer-band__seg { flex: 1 1 0; }
.footer-band__seg--wine   { background: var(--wine); }
.footer-band__seg--teal   { background: var(--teal); }
.footer-band__seg--indigo { background: var(--indigo); }
.footer-band__seg--violet { background: var(--violet); }
.footer-band__seg--green  { background: var(--green); }

.footer__inner {
  display: grid;
  grid-template-columns: minmax(200px, 1.15fr) minmax(0, 2.1fr) minmax(200px, 1.05fr);
  gap: 44px 40px;
  padding-top: 54px;
  padding-bottom: 46px;
}

.brand--row {
  flex-direction: row;
  align-items: center;
  gap: 12px;
}
.brand--row .brand__name {
  writing-mode: horizontal-tb;
  font-size: 17px;
  letter-spacing: .14em;
}

.footer__blurb {
  margin-top: 18px;
  font-size: 15px;
  color: var(--text);
}

.footer__domain {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
  word-break: break-all;
}

.footer__stamp {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--muted);
}

.footer__dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(61, 242, 138, .18);
}

.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px 24px;
}

.footer-col__title {
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--green);
}

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

.footer-col__list a {
  display: inline-block;
  font-size: 14px;
  color: var(--muted);
  background-image: linear-gradient(var(--green), var(--green));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 2px;
  transition: color .2s var(--ease), background-size .28s var(--ease);
}
.footer-col__list a:hover,
.footer-col__list a:focus-visible {
  color: var(--text);
  background-size: 100% 2px;
}

.contact-list {
  display: grid;
  gap: 14px;
}
.contact-list__row {
  display: grid;
  gap: 3px;
}
.contact-list__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--amber);
}
.contact-list__value {
  font-size: 14px;
  color: var(--text);
  line-height: 1.55;
  word-break: break-all;
}
.contact-list__value--mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
}

.contact-note {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 2px solid var(--line);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

.footer__legal {
  background: var(--ink);
  border-top: 2px solid var(--line);
}
.footer__legal-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 28px;
  padding-top: 18px;
  padding-bottom: 18px;
}
.legal-line {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}

/* --------------------------------------------------
   17. 滚动进度
   -------------------------------------------------- */
.scroll-meter {
  position: fixed;
  z-index: 70;
  pointer-events: none;
  background: rgba(30, 46, 74, .55);
}
.scroll-meter__fill {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, var(--green), var(--violet));
}
@media (min-width: 1024px) {
  .scroll-meter {
    top: 0;
    bottom: 0;
    left: calc(var(--rail-w) - 3px);
    width: 3px;
  }
  .scroll-meter__fill {
    transform-origin: top center;
    transform: scaleY(var(--p, 0));
  }
}
@media (max-width: 1023px) {
  .scroll-meter {
    top: var(--header-h);
    left: 0;
    right: 0;
    height: 3px;
  }
  .scroll-meter__fill {
    background: linear-gradient(90deg, var(--green), var(--violet));
    transform-origin: left center;
    transform: scaleX(var(--p, 0));
  }
}

/* --------------------------------------------------
   18. 进场显现
   -------------------------------------------------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}
.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------
   19. 响应式 · 平板
   -------------------------------------------------- */
@media (max-width: 1023px) {
  :root { --rail-w: 0px; }

  body { padding-left: 0; padding-top: var(--header-h); }

  .site-header {
    top: 0;
    left: 0;
    right: 0;
    bottom: auto;
    width: 100%;
    height: var(--header-h);
    display: flex;
    align-items: center;
    padding: 0 14px;
    border-right: 0;
    border-bottom: 2px solid var(--line);
    z-index: 90;
  }

  /* 顶部条 */
  .topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    height: 100%;
  }
  .topbar__brand {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .topbar__brand .brand__mark {
    width: 34px;
    height: 34px;
    font-size: 12px;
    box-shadow: 3px 3px 0 0 rgba(61, 242, 138, .22);
  }
  .topbar__name {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .14em;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 7px 11px;
    background: transparent;
    border: 2px solid var(--line);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .12em;
    cursor: pointer;
    transition: border-color .18s var(--ease), background-color .18s var(--ease),
                color .18s var(--ease);
  }
  .nav-toggle:hover,
  .nav-toggle:focus-visible {
    border-color: var(--green);
    color: var(--green);
  }
  .nav-toggle[aria-expanded="true"] {
    background: var(--green);
    border-color: var(--green);
    color: var(--ink);
  }

  .nav-toggle__bars {
    display: inline-flex;
    flex-direction: column;
    justify-content: space-between;
    width: 17px;
    height: 12px;
  }
  .nav-toggle__bars i {
    display: block;
    height: 2px;
    background: currentColor;
    transition: transform .22s var(--ease), opacity .22s var(--ease);
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) {
    transform: translateY(5px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3) {
    transform: translateY(-5px) rotate(-45deg);
  }

  /* 抽屉 */
  .rail {
    position: fixed;
    top: var(--header-h);
    bottom: 0;
    left: 0;
    width: min(84vw, 320px);
    height: auto;
    padding: 24px 18px 30px;
    gap: 16px;
    background:
      linear-gradient(180deg, rgba(61, 242, 138, .07) 0%, rgba(61, 242, 138, 0) 22%),
      var(--panel);
    border-right: 2px solid var(--green);
    box-shadow: 10px 0 0 0 rgba(6, 10, 24, .55);
    transform: translateX(-104%);
    transition: transform .3s var(--ease);
    z-index: 88;
  }
  .rail[data-open] { transform: translateX(0); }

  .rail__brand {
    align-items: flex-start;
    gap: 8px;
  }
  .brand { flex-direction: row; align-items: center; gap: 12px; }
  .brand__name {
    writing-mode: horizontal-tb;
    font-size: 17px;
    letter-spacing: .14em;
  }
  .rail__tagline {
    display: block;
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: .14em;
    color: var(--muted);
  }
  .rail__domain {
    display: block;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: .06em;
    color: var(--muted);
    word-break: break-all;
  }
  .rail__rule { display: none; }
  .rail__eyebrow { text-align: left; }

  .rail__link {
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 14px;
    padding: 13px 12px;
    border-top: 0;
    border-bottom: 0;
    border-left: 3px solid transparent;
    border-right: 0;
  }
  .rail__link:hover,
  .rail__link:focus-visible {
    border-left-color: var(--green);
    border-top-color: transparent;
    border-bottom-color: transparent;
  }
  .rail__link[aria-current="page"] {
    border-left-color: var(--green);
    border-top-color: transparent;
    border-bottom-color: transparent;
  }
  .rail__index { font-size: 12px; color: rgba(147, 166, 191, .5); }
  .rail__label { font-size: 15px; }

  .rail__actions { margin-top: 18px; }
  .rail__actions .btn { padding: 12px 10px; font-size: 14px; }

  /* 遮罩 */
  .nav-scrim {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 80;
    background: rgba(6, 10, 24, .74);
    opacity: 0;
    visibility: hidden;
    transition: opacity .26s var(--ease), visibility .26s var(--ease);
  }
  body.nav-open .nav-scrim { opacity: 1; visibility: visible; }
  body.nav-open { overflow: hidden; }

  /* 页脚 */
  .footer__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 36px 32px;
    padding-top: 44px;
    padding-bottom: 38px;
  }
  .footer__contact { grid-column: 1 / -1; }

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

/* --------------------------------------------------
   20. 响应式 · 手机
   -------------------------------------------------- */
@media (max-width: 640px) {
  body { font-size: 15.5px; }

  .footer__inner { grid-template-columns: minmax(0, 1fr); }
  .footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 18px; }

  .footer__legal-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

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

  .card { padding: 18px; box-shadow: 6px 6px 0 0 var(--line); }

  .plate__note { margin-left: 0; width: 100%; }
}

/* --------------------------------------------------
   21. 减少动态效果
   -------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

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