/* =========================================================
   BG电子中国区官网 · 共享样式 /assets/site.css
   奶油底 + 雾白 + 电子蓝/青绿/暖橙 · 锐利直角与精密网格
   ========================================================= */

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

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

body, h1, h2, h3, h4, h5, p, ul, ol, li, 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; background: none; border: 0; cursor: pointer; }
a { color: inherit; }
table { width: 100%; border-collapse: collapse; }
main { display: block; }

/* ---------- 2. 变量 ---------- */
:root {
  /* 色彩体系 */
  --cream: #FBF7EF;
  --mist: #F4F8FB;
  --teal-gray: #EAF3F2;
  --ink: #2B211B;
  --ink-blue: #1F2A2E;
  --blue: #2563EB;
  --teal: #0D9488;
  --orange: #F97316;
  --vermilion: #E85D3F;
  --line: #D8D2C4;
  --white: #FFFFFF;

  --ink-soft: rgba(43, 33, 27, 0.72);
  --ink-faint: rgba(43, 33, 27, 0.5);
  --line-soft: rgba(216, 210, 196, 0.72);
  --blue-wash: rgba(37, 99, 235, 0.09);
  --teal-wash: rgba(13, 148, 136, 0.08);
  --orange-wash: rgba(249, 115, 22, 0.1);

  /* 尺度 */
  --shell: 1240px;
  --shell-narrow: 780px;
  --gutter: clamp(1rem, 3.4vw, 2.75rem);
  --sp-1: 0.35rem;
  --sp-2: 0.7rem;
  --sp-3: 1.1rem;
  --sp-4: 1.75rem;
  --sp-5: 2.75rem;
  --sp-6: clamp(3rem, 7vw, 5.5rem);

  --radius-pill: 999px;
  --radius-card: 4px;
  --radius-soft: 14px;

  /* 字体 */
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", "Courier New", monospace;

  --shadow-float: 0 10px 30px -24px rgba(31, 42, 46, 0.65);
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* ---------- 3. 中文排版与基础 ---------- */
body {
  background-color: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: clamp(1rem, 0.95rem + 0.2vw, 1.125rem);
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.006em;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  color: var(--ink-blue);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.012em;
  text-wrap: balance;
}

h1 { font-size: clamp(2.5rem, 5.4vw, 4.5rem); }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.75rem); }
h3 { font-size: clamp(1.15rem, 1.6vw, 1.4rem); }
h4 { font-size: 1.02rem; font-weight: 700; }

p { text-wrap: pretty; }

a { color: var(--blue); text-decoration: none; }

::selection { background: var(--blue); color: #fff; }

:where(a, button, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

[data-section] { scroll-margin-top: 6.5rem; }

/* ---------- 4. 跳过链接 ---------- */
.skip-link {
  position: fixed;
  top: 0;
  left: 50%;
  z-index: 120;
  transform: translate(-50%, -140%);
  padding: 0.65rem 1.15rem;
  background: var(--ink-blue);
  color: var(--cream);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  transition: transform 0.22s var(--ease);
}
.skip-link:focus { transform: translate(-50%, 0); }

/* ---------- 5. 页头：悬浮胶囊导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  padding: clamp(0.6rem, 1.4vw, 1.1rem) var(--gutter) clamp(0.4rem, 0.9vw, 0.7rem);
  background: linear-gradient(to bottom, rgba(251, 247, 239, 0.94) 30%, rgba(251, 247, 239, 0));
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: transparent;
  pointer-events: none;
  z-index: 90;
}
.scroll-progress-fill {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--blue), var(--teal) 55%, var(--orange));
}

.header-shell {
  position: relative;
  max-width: var(--shell);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(0.6rem, 2vw, 1.5rem);
  padding: 0.5rem 0.6rem 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-float);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: padding 0.22s var(--ease), box-shadow 0.22s var(--ease), background-color 0.22s var(--ease);
}

.site-header.is-condensed .header-shell {
  padding: 0.22rem 0.4rem 0.22rem 0.8rem;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 14px 34px -26px rgba(31, 42, 46, 0.85);
}

/* 品牌 */
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cream);
  background: var(--ink-blue);
  border: 1px solid var(--ink-blue);
  border-radius: 2px;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.brand-link:hover .brand-mark { background: var(--blue); border-color: var(--blue); }

.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--ink-blue);
}
.brand-tag {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  color: var(--teal);
}

/* 导航 */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 0.1rem;
}
.nav-link {
  position: relative;
  display: inline-block;
  padding: 0.45rem 0.72rem;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0.72rem;
  right: 0.72rem;
  bottom: 0.24rem;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.2s var(--ease);
}
.nav-link:hover { color: var(--blue); background: var(--mist); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] {
  color: var(--ink-blue);
  font-weight: 700;
  background: var(--teal-gray);
  border-color: var(--line);
}
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--orange);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  font-size: 0.86rem;
  font-weight: 700;
  color: #fff;
  background: var(--orange);
  border: 1px solid var(--orange);
  border-radius: var(--radius-pill);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease), transform 0.18s var(--ease);
}
.nav-cta:hover {
  background: var(--vermilion);
  border-color: var(--vermilion);
  transform: translateY(-1px);
}

/* 移动按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--white);
  color: var(--ink-blue);
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}
.nav-toggle:hover { border-color: var(--blue); }
.nav-toggle-bar {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--ink-blue);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle-bar + .nav-toggle-bar { margin-top: 4px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child { transform: translateY(2.75px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { transform: translateY(-2.75px) rotate(-45deg); }
.nav-toggle-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
}

/* ---------- 6. 页脚 ---------- */
.site-footer {
  margin-top: clamp(3.5rem, 8vw, 7rem);
  background: var(--mist);
  border-top: 1px solid var(--line);
  color: var(--ink);
}
.footer-shell {
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(2.5rem, 5vw, 4.25rem) var(--gutter) 1.5rem;
}
.footer-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.25rem);
  grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, 1fr)) minmax(0, 1.35fr);
}
.footer-brand { display: flex; flex-direction: column; gap: 0.8rem; }
.footer-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}
.footer-mark {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--cream);
  background: var(--ink-blue);
  border-radius: 2px;
  transition: background-color 0.2s var(--ease);
}
.footer-brand-link:hover .footer-mark { background: var(--blue); }
.footer-brand-name {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--ink-blue);
}
.footer-line {
  font-size: 0.9rem;
  color: var(--ink-soft);
  max-width: 24ch;
}
.footer-meta { margin-top: 0.15rem; }

.mono-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
}

.footer-col { display: flex; flex-direction: column; gap: 0.85rem; }
.footer-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.16em;
  color: var(--ink-blue);
  text-transform: uppercase;
  border-top: 1px solid var(--line);
  padding-top: 0.7rem;
}
.footer-title::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--orange);
  border-radius: 1px;
  flex: none;
}
.footer-links { display: flex; flex-direction: column; gap: 0.1rem; }
.footer-link {
  display: inline-block;
  padding: 0.22rem 0;
  font-size: 0.94rem;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), transform 0.18s var(--ease);
}
.footer-link:hover {
  color: var(--blue);
  border-bottom-color: var(--blue);
  transform: translateX(3px);
}

.contact-list { display: flex; flex-direction: column; gap: 0.5rem; }
.contact-line { display: flex; gap: 0.7rem; font-size: 0.88rem; }
.contact-label {
  flex: none;
  width: 3.2em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--teal);
  padding-top: 0.12rem;
}
.contact-value { color: var(--ink-soft); word-break: break-all; }
.footer-note {
  font-size: 0.78rem;
  color: var(--ink-faint);
  border-left: 2px solid var(--orange);
  padding-left: 0.6rem;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  justify-content: space-between;
  align-items: baseline;
  margin-top: clamp(2rem, 4vw, 3rem);
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
}
.footer-legal {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}
.footer-legal--muted { color: var(--ink-faint); }

/* ---------- 7. 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: var(--shell-narrow); }

.section { padding-block: clamp(2.5rem, 6vw, 5rem); }

.section-head {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-width: 62ch;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--orange);
  flex: none;
}
.section-title {
  font-size: clamp(1.6rem, 3.2vw, 2.6rem);
  font-weight: 800;
}
.section-lede { color: var(--ink-soft); font-size: 1rem; }

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

.grid { display: grid; gap: clamp(1rem, 2.4vw, 1.75rem); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(215px, 1fr)); }
.grid--asym { grid-template-columns: minmax(0, 1fr); }
@media (min-width: 900px) {
  .grid--asym { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); }
}

/* ---------- 8. 通用组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.25rem;
  font-size: 0.94rem;
  font-weight: 700;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease), transform 0.18s var(--ease);
}
.btn--primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn--primary:hover { background: var(--ink-blue); border-color: var(--ink-blue); transform: translateY(-2px); }
.btn--accent { background: var(--orange); color: #fff; border-color: var(--orange); }
.btn--accent:hover { background: var(--vermilion); border-color: var(--vermilion); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--ink-blue); border-color: var(--line); }
.btn--ghost:hover { color: var(--blue); border-color: var(--blue); background: var(--mist); }
.btn--quiet {
  background: transparent;
  color: var(--teal);
  border-color: transparent;
  padding-inline: 0.2rem;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
}
.btn--quiet:hover { color: var(--blue); border-bottom-color: var(--blue); }

.card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: clamp(1.1rem, 2.4vw, 1.75rem);
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease), background-color 0.18s var(--ease);
}
.card:hover { border-color: var(--blue); transform: translateY(-3px); }
.card--tint { background: var(--teal-gray); border-color: transparent; }
.card--tint:hover { background: var(--mist); border-color: var(--teal); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.22rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 2px;
}
.tag--teal { color: var(--teal); border-color: rgba(13, 148, 136, 0.36); background: var(--teal-wash); }
.tag--blue { color: var(--blue); border-color: rgba(37, 99, 235, 0.32); background: var(--blue-wash); }
.tag--orange { color: var(--vermilion); border-color: rgba(249, 115, 22, 0.38); background: var(--orange-wash); }

.stat { display: flex; flex-direction: column; gap: 0.2rem; }
.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2.35rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--ink-blue);
}
.stat-label { font-size: 0.82rem; color: var(--ink-faint); }

/* 索引表 */
.index-list { border-top: 1px solid var(--line); }
.index-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.9rem;
  align-items: baseline;
  padding: 0.85rem 0.25rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease), padding-left 0.18s var(--ease);
}
.index-item:hover {
  background: var(--mist);
  border-color: var(--blue);
  padding-left: 0.8rem;
}
.index-item[aria-current="true"] { background: var(--mist); border-color: var(--blue); }
.index-item[aria-current="true"] .index-num { color: var(--orange); }
.index-num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--teal);
}
.index-text { font-size: 1rem; font-weight: 600; color: var(--ink-blue); }
.index-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
}

/* 时间轴 */
.timeline {
  position: relative;
  padding-left: 1.75rem;
  border-left: 1px solid var(--line);
}
.timeline-item { position: relative; padding-bottom: 2rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-node {
  position: absolute;
  left: -1.84rem;
  top: 0.42rem;
  width: 9px;
  height: 9px;
  background: var(--cream);
  border: 2px solid var(--blue);
  border-radius: 1px;
}
.timeline-item[data-state="return"] .timeline-node { background: var(--orange); border-color: var(--orange); }
.timeline-time {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--teal);
}

/* 图片容器（页面阶段放置占位图） */
.media-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--teal-gray);
  background-image:
    linear-gradient(to right, rgba(216, 210, 196, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(216, 210, 196, 0.55) 1px, transparent 1px);
  background-size: 38px 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
}
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--accent::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(225deg, var(--blue-wash), transparent 42%, var(--orange-wash));
  clip-path: polygon(100% 0, 100% 46%, 42% 0);
}

/* 面包屑 */
.breadcrumb { padding-block: var(--sp-3); }
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}
.breadcrumb-list li { display: flex; align-items: center; gap: 0.4rem; color: var(--ink-faint); }
.breadcrumb-list li + li::before { content: "/"; color: var(--line); }
.breadcrumb-link {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.breadcrumb-link:hover { color: var(--blue); border-bottom-color: var(--blue); }
.breadcrumb-current { color: var(--ink-blue); }

/* ---------- 9. 滚动显现 ---------- */
[data-reveal] { transition: opacity 0.5s var(--ease), transform 0.5s var(--ease); }
.js [data-reveal] { opacity: 0; transform: translateY(16px); }
.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 10. 响应式：平板 ---------- */
@media (max-width: 1080px) {
  .nav-link { padding: 0.4rem 0.52rem; font-size: 0.86rem; }
  .nav-link::after { left: 0.52rem; right: 0.52rem; }
  .nav-cta { padding: 0.45rem 0.8rem; font-size: 0.8rem; }
}

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}

/* ---------- 11. 响应式：手机 / 移动导航 ---------- */
@media (max-width: 960px) {
  .header-shell {
    border-radius: 16px;
    padding: 0.45rem 0.5rem 0.45rem 0.8rem;
  }
  .site-header.is-condensed .header-shell { padding: 0.35rem 0.5rem 0.35rem 0.75rem; }

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

  .site-nav {
    position: absolute;
    top: calc(100% + 0.55rem);
    left: 0;
    right: 0;
    z-index: 70;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.3rem;
    padding: 0.7rem;
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: var(--radius-soft);
    box-shadow: 0 22px 44px -32px rgba(31, 42, 46, 0.9);
  }
  .site-nav[data-open] { display: flex; }

  .nav-list { flex-direction: column; align-items: stretch; gap: 0.1rem; }
  .nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.7rem 0.85rem;
    font-size: 0.96rem;
    border-radius: 8px;
  }
  .nav-link::after {
    left: 0.85rem;
    right: 0.85rem;
    bottom: 0.42rem;
  }
  .nav-link[aria-current="page"] { border-radius: 8px; }

  .nav-cta {
    justify-content: center;
    margin-top: 0.4rem;
    padding: 0.7rem 1rem;
    border-radius: 8px;
  }
}

@media (max-width: 640px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .contact-line { flex-direction: column; gap: 0.1rem; }
  .contact-label { width: auto; }
  .index-item { grid-template-columns: auto minmax(0, 1fr); }
  .index-meta { grid-column: 2; }
}

/* ---------- 12. 动效偏好 ---------- */
@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;
  }
  .js [data-reveal] { opacity: 1 !important; transform: none !important; }
  .card:hover, .footer-link:hover, .btn:hover, .nav-cta:hover { transform: none; }
}