/* ============================================================
   亚体育 MATCH YATIYU — site.css
   夜场转播控制台 · 共享外壳样式
   ============================================================ */

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

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

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

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

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

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

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

button { background: none; border: 0; cursor: pointer; }

:root {
  /* 色彩 */
  --c-night: #071A2C;
  --c-ink: #050B12;
  --c-stand: #0D2A44;
  --c-broadcast: #154A66;
  --c-poster: #F4F1E8;
  --c-cyan: #35F2D6;
  --c-orange: #FF6B2C;
  --c-ice: #A9BAC8;
  --c-steel: #6F8291;
  --c-glass: #DDF7F4;

  /* 字体 */
  --f-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --f-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --f-mono: "IBM Plex Mono", "JetBrains Mono", "SFMono-Regular", "Consolas", monospace;

  /* 尺度 */
  --header-h: 68px;
  --frame-max: 1280px;
  --gutter: clamp(16px, 4vw, 48px);
  --pad-block: clamp(48px, 7vw, 96px);

  /* 线条 */
  --hair: 1px;
  --line-soft: rgba(169, 186, 200, 0.22);
  --line-strong: rgba(53, 242, 214, 0.55);

  /* 动效 */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
  --t-fast: 140ms;
  --t-mid: 200ms;

  /* 层级 */
  --z-header: 100;
  --z-meter: 110;
}

/* ---------- 中文排版基础 ---------- */
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--c-night);
  color: var(--c-poster);
  font-family: var(--f-body);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--c-poster);
}

h1 { font-size: clamp(3rem, 8vw, 7rem); font-weight: 900; }
h2 { font-size: clamp(1.8rem, 3.5vw, 3.2rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.65rem); }

p { max-width: 68ch; }

strong, b { font-weight: 700; color: var(--c-poster); }

em { font-style: normal; color: var(--c-cyan); }

small { font-size: 0.82em; color: var(--c-ice); }

code, kbd, samp, .mono {
  font-family: var(--f-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

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

/* ---------- 布局容器 ---------- */
.container,
.container-wide,
.container-narrow {
  width: 100%;
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container { max-width: var(--frame-max); }
.container-wide { max-width: 1440px; }
.container-narrow { max-width: 760px; }

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2.2vw, 32px);
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 999;
  transform: translateY(-120%);
  padding: 10px 18px;
  background-color: var(--c-cyan);
  color: var(--c-ink);
  font-weight: 700;
  font-size: 0.9rem;
  transition: transform var(--t-fast) var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); }

/* ============================================================
   HEADER — 框架式导航条
   ============================================================ */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
  background-color: rgba(5, 11, 18, 0.92);
  border-bottom: var(--hair) solid var(--c-broadcast);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  transition: background-color var(--t-mid) var(--ease),
              border-color var(--t-mid) var(--ease);
}
.site-header[data-scrolled] {
  background-color: rgba(5, 11, 18, 0.985);
  border-bottom-color: var(--line-strong);
}

.header-frame {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 32px);
  width: 100%;
  max-width: var(--frame-max);
  margin-inline: auto;
  min-height: var(--header-h);
  padding-inline: var(--gutter);
}

/* 品牌锁定 */
.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  padding-block: 6px;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background-color: var(--c-cyan);
  color: var(--c-ink);
  font-family: var(--f-mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: 2px;
  transition: background-color var(--t-fast) var(--ease);
}
.brand-lockup:hover .brand-mark,
.brand-lockup:focus-visible .brand-mark { background-color: var(--c-poster); }

.brand-text {
  font-family: var(--f-display);
  font-size: 1.14rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--c-poster);
  white-space: nowrap;
}
.brand-descriptor {
  padding-left: 12px;
  border-left: var(--hair) solid var(--line-soft);
  font-family: var(--f-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--c-steel);
  white-space: nowrap;
}

/* 主导航 */
.nav-primary {
  flex: 1 1 auto;
  min-width: 0;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(2px, 0.9vw, 10px);
  justify-content: flex-start;
}
.nav-item { position: relative; }

.nav-link {
  position: relative;
  display: inline-block;
  padding: 8px 10px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--c-ice);
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease),
              background-color var(--t-fast) var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 2px;
  height: 2px;
  background-color: var(--c-cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t-mid) var(--ease);
}
.nav-link:hover,
.nav-link:focus-visible { color: var(--c-poster); }
.nav-link:hover::after,
.nav-link:focus-visible::after { transform: scaleX(1); }

.nav-link[aria-current="page"] {
  color: var(--c-poster);
  font-weight: 700;
}
.nav-link[aria-current="page"]::after { transform: scaleX(1); }
.nav-link[aria-current="page"]::before {
  content: "";
  position: absolute;
  top: 4px;
  left: 10px;
  width: 5px;
  height: 5px;
  background-color: var(--c-orange);
  border-radius: 50%;
}

/* 右侧工具区 */
.header-utility {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.utility-link {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--c-steel);
  transition: color var(--t-fast) var(--ease);
}
.utility-link:hover,
.utility-link:focus-visible { color: var(--c-poster); }

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 10px 12px;
  border: var(--hair) solid var(--c-broadcast);
  border-radius: 2px;
  color: var(--c-poster);
  background-color: var(--c-stand);
  transition: border-color var(--t-fast) var(--ease),
              background-color var(--t-fast) var(--ease);
}
.nav-toggle:hover { border-color: var(--line-strong); }
.nav-toggle-bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background-color: var(--c-cyan);
  transition: transform var(--t-fast) var(--ease);
}
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background-color: var(--c-cyan);
  transition: transform var(--t-fast) var(--ease),
              top var(--t-fast) var(--ease);
}
.nav-toggle-bars::before { top: -6px; }
.nav-toggle-bars::after { top: 6px; }

.site-header[data-open] .nav-toggle-bars { background-color: transparent; }
.site-header[data-open] .nav-toggle-bars::before { top: 0; transform: rotate(45deg); }
.site-header[data-open] .nav-toggle-bars::after { top: 0; transform: rotate(-45deg); }

.nav-toggle-label {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

/* 滚动进度条 */
.scroll-meter {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  background-color: transparent;
  overflow: hidden;
  pointer-events: none;
}
.scroll-meter::after {
  content: "";
  display: block;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-orange));
  transform: scaleX(var(--progress, 0));
  transform-origin: left center;
  transition: transform 90ms linear;
}

/* ============================================================
   FOOTER — 记分牌式页脚
   ============================================================ */
.site-footer {
  position: relative;
  margin-top: clamp(64px, 9vw, 140px);
  background-color: var(--c-ink);
  border-top: var(--hair) solid var(--c-broadcast);
  color: var(--c-ice);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg,
    var(--c-cyan) 0 18%,
    var(--c-broadcast) 18% 62%,
    var(--c-orange) 62% 100%);
}

.footer-scoreboard {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(24px, 4vw, 64px);
  width: 100%;
  max-width: var(--frame-max);
  margin-inline: auto;
  padding: clamp(40px, 5vw, 64px) var(--gutter) clamp(28px, 3vw, 44px);
  border-bottom: var(--hair) solid var(--line-soft);
}

.footer-brand { display: flex; flex-direction: column; gap: 16px; }
.footer-mark {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  background-color: transparent;
  border: var(--hair) solid var(--c-cyan);
  color: var(--c-cyan);
  font-family: var(--f-mono);
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: 2px;
}
.footer-brand-line {
  font-family: var(--f-display);
  font-size: clamp(1.15rem, 2vw, 1.6rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-poster);
  max-width: 20ch;
}

.footer-contact { display: flex; flex-direction: column; gap: 8px; }
.footer-contact-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  max-width: none;
  padding-block: 5px;
  border-bottom: var(--hair) solid rgba(21, 74, 102, 0.55);
}
.footer-key {
  flex: 0 0 44px;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--c-steel);
}
.footer-value,
.footer-contact .footer-link {
  font-size: 0.94rem;
  color: var(--c-poster);
  font-variant-numeric: tabular-nums;
}
.footer-note {
  margin-top: 10px;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--c-steel);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 48px);
  width: 100%;
  max-width: var(--frame-max);
  margin-inline: auto;
  padding: clamp(32px, 4vw, 52px) var(--gutter);
  border-bottom: var(--hair) solid var(--line-soft);
}

.footer-col-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: var(--hair) solid var(--c-broadcast);
  font-family: var(--f-body);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-poster);
}
.footer-col-num {
  font-family: var(--f-mono);
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--c-cyan);
}

.footer-list { display: flex; flex-direction: column; gap: 10px; }
.footer-link {
  display: inline-block;
  font-size: 0.92rem;
  color: var(--c-ice);
  transition: color var(--t-fast) var(--ease),
              transform var(--t-fast) var(--ease);
}
.footer-link:hover,
.footer-link:focus-visible {
  color: var(--c-cyan);
  transform: translateX(3px);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 28px;
  width: 100%;
  max-width: var(--frame-max);
  margin-inline: auto;
  padding: 22px var(--gutter) 30px;
}
.footer-legal-item {
  max-width: none;
  font-family: var(--f-mono);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  color: var(--c-steel);
  font-variant-numeric: tabular-nums;
}
.footer-legal-tail { margin-left: auto; color: rgba(111, 130, 145, 0.85); }

/* ============================================================
   通用按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: var(--hair) solid transparent;
  border-radius: 2px;
  font-family: var(--f-body);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  transition: background-color var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              transform var(--t-fast) var(--ease),
              box-shadow var(--t-fast) var(--ease);
}
.btn-sm { padding: 8px 14px; font-size: 0.82rem; }

.btn-primary {
  background-color: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-ink);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--c-poster);
  border-color: var(--c-poster);
  transform: translateY(-2px);
}

.btn-ghost {
  background-color: transparent;
  border-color: var(--c-broadcast);
  color: var(--c-poster);
}
.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
  transform: translateY(-2px);
}

.btn-orange {
  background-color: var(--c-orange);
  border-color: var(--c-orange);
  color: var(--c-ink);
}
.btn-orange:hover,
.btn-orange:focus-visible {
  background-color: var(--c-poster);
  border-color: var(--c-poster);
  transform: translateY(-2px);
}

/* ============================================================
   面包屑
   ============================================================ */
.breadcrumb {
  padding-block: 20px 4px;
  border-bottom: var(--hair) solid rgba(21, 74, 102, 0.4);
}
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--c-steel);
}
.breadcrumb-item { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--c-broadcast);
}
.breadcrumb-item a {
  color: var(--c-ice);
  transition: color var(--t-fast) var(--ease);
}
.breadcrumb-item a:hover,
.breadcrumb-item a:focus-visible { color: var(--c-cyan); }
.breadcrumb-current { color: var(--c-poster); }

/* ============================================================
   段落标题组 / 标签 / 规则线
   ============================================================ */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-cyan);
}
.eyebrow::before {
  content: "";
  display: block;
  width: 22px;
  height: 1px;
  background-color: var(--c-cyan);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: clamp(24px, 3vw, 40px);
}
.section-title { max-width: 22ch; }
.section-note {
  max-width: 40ch;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--c-ice);
}

.rule {
  height: var(--hair);
  border: 0;
  background-color: var(--line-soft);
  margin-block: clamp(28px, 4vw, 56px);
}
.rule-dashed {
  height: 0;
  border: 0;
  border-top: var(--hair) dashed rgba(21, 74, 102, 0.85);
  margin-block: clamp(20px, 3vw, 36px);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: var(--hair) solid var(--c-broadcast);
  border-radius: 2px;
  font-family: var(--f-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  color: var(--c-ice);
  white-space: nowrap;
}
.tag-orange {
  border-color: rgba(255, 107, 44, 0.55);
  color: var(--c-orange);
  background-color: rgba(255, 107, 44, 0.08);
}
.tag-cyan {
  border-color: rgba(53, 242, 214, 0.45);
  color: var(--c-cyan);
  background-color: rgba(53, 242, 214, 0.07);
}

/* ============================================================
   面板 / 图片容器
   ============================================================ */
.panel {
  position: relative;
  padding: clamp(20px, 3vw, 36px);
  border: var(--hair) solid var(--c-broadcast);
  border-radius: 2px;
  background-color: var(--c-stand);
}
.panel-solid {
  background-color: var(--c-stand);
  border: var(--hair) solid var(--c-broadcast);
}
.panel-glass {
  background-color: rgba(221, 247, 244, 0.11);
  border: var(--hair) solid rgba(221, 247, 244, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* 可复用响应式图片容器 */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 2px;
  background-color: var(--c-stand);
  border: var(--hair) solid var(--c-broadcast);
}
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-mid) var(--ease),
              opacity var(--t-mid) var(--ease);
}
.media-frame:hover img { opacity: 0.92; }
.media-frame.ratio-16x9 { aspect-ratio: 16 / 9; }
.media-frame.ratio-4x3 { aspect-ratio: 4 / 3; }
.media-frame.ratio-1x1 { aspect-ratio: 1 / 1; }
.media-frame.ratio-3x2 { aspect-ratio: 3 / 2; }

.media-caption {
  margin-top: 10px;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--c-steel);
}

/* ============================================================
   索引列表 / 数据表
   ============================================================ */
.index-list {
  display: flex;
  flex-direction: column;
  border-top: var(--hair) solid var(--c-broadcast);
}
.index-item {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  padding: 16px 14px;
  border-bottom: var(--hair) solid rgba(21, 74, 102, 0.6);
  transition: background-color var(--t-fast) var(--ease);
}
.index-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--c-cyan);
  transform: scaleY(0);
  transform-origin: center;
  transition: transform var(--t-fast) var(--ease);
}
.index-item:hover { background-color: rgba(21, 74, 102, 0.22); }
.index-item:hover::before,
.index-item:focus-within::before { transform: scaleY(1); }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
}
.data-table caption {
  caption-side: top;
  padding-bottom: 12px;
  text-align: left;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--c-steel);
}
.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: var(--hair) solid rgba(21, 74, 102, 0.6);
}
.data-table thead th {
  background-color: var(--c-broadcast);
  color: var(--c-poster);
  font-family: var(--f-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
}
.data-table tbody tr { transition: background-color var(--t-fast) var(--ease); }
.data-table tbody tr:hover { background-color: rgba(53, 242, 214, 0.06); }
.data-table td:first-child {
  border-left: 2px solid transparent;
  transition: border-color var(--t-fast) var(--ease);
}
.data-table tbody tr:hover td:first-child { border-left-color: var(--c-cyan); }

/* ============================================================
   显现（由 JS 添加）
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 420ms var(--ease), transform 420ms var(--ease);
}
[data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1120px) {
  .brand-descriptor { display: none; }
  .utility-link { display: none; }
}

@media (max-width: 940px) {
  :root { --header-h: 60px; }

  .header-frame { flex-wrap: wrap; }

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

  .nav-primary {
    order: 4;
    flex: 0 0 100%;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--t-mid) var(--ease);
  }
  .site-header[data-open] .nav-primary { max-height: 520px; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-block: 8px 16px;
    border-top: var(--hair) solid var(--c-broadcast);
  }
  .nav-item { border-bottom: var(--hair) solid rgba(21, 74, 102, 0.55); }
  .nav-link {
    display: block;
    padding: 14px 4px;
    font-size: 1rem;
  }
  .nav-link::after { left: 4px; right: auto; width: 24px; bottom: 8px; }
  .nav-link[aria-current="page"]::before { top: 18px; left: 4px; }

  .header-utility {
    order: 3;
    margin-left: auto;
    gap: 8px;
  }
  .header-utility .utility-link { display: inline-block; }

  .footer-scoreboard { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-legal-tail { margin-left: 0; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  :root { --gutter: 18px; }

  .brand-text { font-size: 1rem; }
  .brand-mark { width: 34px; height: 34px; font-size: 0.78rem; }
  .header-utility .btn { display: none; }

  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .footer-contact-row { flex-wrap: wrap; gap: 4px 12px; }
  .footer-key { flex-basis: 100%; }
  .footer-legal { flex-direction: column; align-items: flex-start; gap: 6px; }

  .grid-12 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ============================================================
   无障碍：减少动效
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .scroll-meter { display: none; }
}