/* ============================================================
   美高美游艺 · 共享样式 /assets/site.css
   夜场游艺 × 技术蓝图控制台
   ============================================================ */

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

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

body {
  margin: 0;
  background-color: #0A0912;
  color: #F3EADF;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
h1, h2, h3, h4 { line-height: 1.2; }
ul, ol { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
a { color: #21E6D6; text-decoration: none; }
a:hover { color: #FFC65C; }

/* ---------- 变量 ---------- */
:root {
  --ink: #0A0912;
  --ink-deep: #07060E;
  --panel: #151228;
  --panel-soft: #1B1733;
  --neon: #7B4DFF;
  --neon-soft: #A98CFF;
  --cyan: #21E6D6;
  --gold: #FFC65C;
  --signal: #FF5B3D;
  --cream: #F3EADF;
  --mist: #B9B3CE;
  --line: #2A2440;
  --max: 1240px;
  --rail: 240px;
  --pad: clamp(16px, 4vw, 40px);
  --radius: 18px;
  --mono: ui-monospace, "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;
  --serif: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "SimSun", Georgia, serif;
}

/* ---------- 蓝图底纹与光晕 ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(42, 36, 64, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42, 36, 64, 0.55) 1px, transparent 1px),
    radial-gradient(62% 46% at 10% -8%, rgba(123, 77, 255, 0.34), transparent 70%),
    radial-gradient(52% 40% at 94% 6%, rgba(33, 230, 214, 0.17), transparent 72%),
    radial-gradient(44% 34% at 78% 102%, rgba(255, 198, 92, 0.12), transparent 72%);
  background-size: 48px 48px, 48px 48px, 100% 100%, 100% 100%, 100% 100%;
}

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

/* ---------- 布局工具 ---------- */
.shell {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section { padding-block: clamp(40px, 6vw, 96px); }
.section--flush { padding-block: 0; }

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--8 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
.grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

.layout-rail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--rail);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

/* ---------- 排版 ---------- */
.display {
  display: inline-block;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 0.95;
  color: var(--cream);
  transform: skewX(-4deg);
  text-shadow: 3px 0 0 rgba(123, 77, 255, 0.38);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.9rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--neon-soft);
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 1px;
  background: currentColor;
}

.mono {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
}

.figure-num {
  font-family: var(--serif);
  color: var(--gold);
  letter-spacing: -0.01em;
  line-height: 0.9;
}

.prose { max-width: 68ch; }
.prose p { max-width: 36em; margin: 0 0 1.1em; color: var(--cream); }
.prose p:last-child { margin-bottom: 0; }
.prose a {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

/* ---------- 按钮 / 标签 / 卡片 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--cream);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}
.btn:hover {
  transform: translateY(-2px);
  border-color: var(--neon-soft);
  color: var(--cream);
}
.btn--primary {
  border-color: transparent;
  background: linear-gradient(120deg, var(--neon), #5B2BFF);
  color: #FFFFFF;
  box-shadow: 0 0 0 1px rgba(169, 140, 255, 0.35), 0 16px 34px -20px rgba(123, 77, 255, 0.95);
}
.btn--primary:hover { color: #FFFFFF; }
.btn--ghost {
  background: transparent;
  border-color: rgba(33, 230, 214, 0.45);
  color: var(--cyan);
}
.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(10, 9, 18, 0.55);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
  white-space: nowrap;
}

.card {
  padding: clamp(16px, 2.5vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.status-dot {
  display: inline-block;
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 2px rgba(33, 230, 214, 0.18), 0 0 12px rgba(33, 230, 214, 0.8);
  animation: dotPulse 3s ease-in-out infinite;
}
@keyframes dotPulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 2px rgba(33, 230, 214, 0.18), 0 0 12px rgba(33, 230, 214, 0.8); }
  50% { opacity: 0.6; box-shadow: 0 0 0 2px rgba(33, 230, 214, 0.12), 0 0 6px rgba(33, 230, 214, 0.45); }
}

/* ---------- 图片容器（页面阶段放占位图） ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, #1B1733 0%, #0D0B18 68%);
}
.media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--phone { aspect-ratio: 9 / 16; max-width: 320px; }
.media--wide { aspect-ratio: 16 / 9; }
.media--tilt {
  transform: rotate(-2.4deg);
  box-shadow: 0 34px 74px -44px rgba(123, 77, 255, 0.95);
}
.media--grid::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    linear-gradient(to right, rgba(169, 140, 255, 0.14) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(169, 140, 255, 0.14) 1px, transparent 1px);
  background-size: 32px 32px;
}
.media__label {
  position: absolute;
  left: 10px;
  bottom: 10px;
  z-index: 2;
  padding: 0.24rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(10, 9, 18, 0.8);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
}

/* ---------- 面包屑 ---------- */
.crumbs { margin: 0 0 clamp(18px, 3vw, 28px); }
.crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
}
.crumbs__item { display: inline-flex; align-items: center; gap: 0.4rem; }
.crumbs__link { color: var(--mist); }
.crumbs__link:hover { color: var(--cyan); }
.crumbs__sep { color: var(--line); }
.crumbs__current { color: var(--gold); }

/* ---------- 右侧索引轨道 ---------- */
.toc {
  position: sticky;
  top: 92px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(21, 18, 40, 0.6);
}
.toc__title {
  margin: 0 0 0.8rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--neon-soft);
}
.toc__list { display: grid; gap: 3px; }
.toc__link {
  display: block;
  padding: 0.35rem 0.5rem;
  border-left: 2px solid transparent;
  color: var(--mist);
  font-size: 0.82rem;
  line-height: 1.5;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.toc__link:hover { color: var(--cream); border-left-color: var(--neon); }
.toc__link[aria-current="true"] {
  color: var(--gold);
  border-left-color: var(--gold);
  background: rgba(255, 198, 92, 0.08);
}

/* ============================================================
   头部
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  color: var(--cream);
  background: rgba(10, 9, 18, 0.93);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header::after {
  content: "";
  display: block;
  height: 6px;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 24px);
  opacity: 0.7;
}

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

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 200;
  padding: 0.6rem 1rem;
  border-radius: 0 0 10px 10px;
  background: var(--gold);
  color: #0A0912;
  font-weight: 700;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 0; color: #0A0912; }

.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 90;
  pointer-events: none;
  background: rgba(255, 255, 255, 0.05);
}
.scroll-meter__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--neon), var(--cyan) 60%, var(--gold));
  box-shadow: 0 0 12px rgba(33, 230, 214, 0.6);
}

/* 品牌 */
.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--cream);
  justify-self: start;
}
.brand:hover { color: var(--cream); }
.brand__name {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  font-weight: 800;
  letter-spacing: 0.05em;
  line-height: 1.2;
}
.brand__doc {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

/* 快捷索引 */
.quick {
  position: relative;
  justify-self: center;
}
.quick__summary {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.42rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(21, 18, 40, 0.7);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.quick__summary::-webkit-details-marker { display: none; }
.quick__summary:hover,
.quick[open] .quick__summary {
  color: var(--cyan);
  border-color: rgba(33, 230, 214, 0.5);
  background: rgba(33, 230, 214, 0.08);
}
.quick__chev {
  width: 6px;
  height: 6px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform 0.25s ease;
}
.quick[open] .quick__chev { transform: rotate(-135deg) translateY(-1px); }
.quick__panel {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 70;
  width: min(320px, 78vw);
  padding: 14px;
  border: 1px solid rgba(123, 77, 255, 0.55);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: 0 28px 64px -34px rgba(123, 77, 255, 0.9);
}
.quick__hint {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}
.quick__list { display: grid; gap: 6px; }
.quick__link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid transparent;
  border-radius: 9px;
  color: var(--cream);
  font-size: 0.88rem;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.quick__link:hover,
.quick__link:focus-visible {
  background: rgba(123, 77, 255, 0.16);
  border-color: rgba(169, 140, 255, 0.45);
  color: var(--cream);
}
.quick__code {
  padding: 0.1rem 0.3rem;
  border: 1px solid rgba(255, 198, 92, 0.38);
  border-radius: 5px;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: var(--gold);
}

/* 导航 */
.site-nav {
  display: flex;
  justify-self: end;
}
.nav-status { display: none; }
.nav-list {
  display: flex;
  gap: clamp(6px, 1.3vw, 18px);
}
.nav-item { display: flex; }
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  padding: 0.45rem 0.1rem;
  border-bottom: 2px solid transparent;
  color: var(--cream);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.nav-link__idx {
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.08em;
  color: var(--mist);
  transition: color 0.2s ease;
}
.nav-link:hover { color: var(--cyan); }
.nav-link:hover .nav-link__idx { color: var(--cyan); }
.nav-link[aria-current="page"] {
  color: var(--gold);
  border-bottom-color: var(--gold);
}
.nav-link[aria-current="page"] .nav-link__idx { color: var(--gold); }

/* 移动按钮与遮罩 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.8rem;
  border: 1px solid rgba(123, 77, 255, 0.55);
  border-radius: 999px;
  background: rgba(21, 18, 40, 0.9);
  color: var(--cream);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
}
.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 14px;
  height: 10px;
}
.nav-toggle__bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.site-header[data-open] .nav-toggle__bars span:first-child { transform: translateY(3px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars span:last-child { transform: translateY(-3px) rotate(-45deg); }

.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: 75;
  background: rgba(10, 9, 18, 0.72);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.site-header[data-open] .nav-scrim {
  opacity: 1;
  pointer-events: auto;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: clamp(56px, 8vw, 112px);
  padding: clamp(40px, 6vw, 76px) 0 26px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(21, 18, 40, 0.7), rgba(7, 6, 14, 1));
  color: var(--cream);
}
.footer-mark {
  margin: 0 0 clamp(26px, 4vw, 48px);
  font-family: var(--mono);
  font-size: clamp(2.1rem, 8vw, 5.4rem);
  line-height: 0.9;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: rgba(169, 140, 255, 0.1);
  -webkit-text-stroke: 1px rgba(169, 140, 255, 0.36);
}
.footer-mark span {
  display: block;
  margin-top: 0.9rem;
  font-size: clamp(0.58rem, 1.4vw, 0.74rem);
  letter-spacing: 0.4em;
  color: var(--mist);
  -webkit-text-stroke: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr 1.25fr;
  gap: clamp(24px, 4vw, 56px);
}
.footer-col { min-width: 0; }
.footer-title {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}
.footer-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px 16px;
}
.footer-nav__link {
  display: inline-block;
  padding: 0.28rem 0;
  border-bottom: 1px solid transparent;
  color: var(--cream);
  font-size: 0.9rem;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.footer-nav__link:hover {
  color: var(--cyan);
  border-bottom-color: rgba(33, 230, 214, 0.5);
}

.footer-tools { display: grid; gap: 8px; }
.tool-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0.62rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(10, 9, 18, 0.45);
  color: var(--cream);
  font-size: 0.9rem;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.tool-link:hover {
  transform: translateY(-2px);
  border-color: rgba(123, 77, 255, 0.6);
  background: rgba(123, 77, 255, 0.12);
  color: var(--cream);
}
.tool-link__tag {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.footer-meta {
  display: grid;
  gap: 6px;
  margin: 0 0 12px;
  font-size: 0.86rem;
}
.footer-meta > div {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}
.footer-meta dt {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
}
.footer-meta dd {
  color: var(--cream);
  overflow-wrap: anywhere;
}
.footer-strong { color: var(--cyan); }
.footer-note {
  margin: 0;
  padding-left: 0.7rem;
  border-left: 2px solid var(--signal);
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--mist);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.footer-copy {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  font-size: 0.8rem;
}
.footer-legal a {
  color: var(--cream);
  border-bottom: 1px solid var(--line);
}
.footer-legal a:hover { color: var(--cyan); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .layout-rail { grid-template-columns: minmax(0, 1fr); }
  .toc { position: static; }
}

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--8,
  .grid--12 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .masthead {
    grid-template-columns: minmax(0, 1fr) auto;
    padding-block: 12px;
  }
  .quick { display: none; }
  .nav-toggle { display: inline-flex; justify-self: end; }

  .site-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 80;
    display: block;
    justify-self: stretch;
    max-height: 86vh;
    overflow-y: auto;
    padding-bottom: max(16px, env(safe-area-inset-bottom));
    border-top: 1px solid rgba(123, 77, 255, 0.55);
    border-radius: 22px 22px 0 0;
    background: linear-gradient(180deg, #1B1733 0%, #0D0B18 100%);
    box-shadow: 0 -34px 90px -24px rgba(0, 0, 0, 0.95);
    transform: translateY(112%);
    visibility: hidden;
    transition: transform 0.35s cubic-bezier(0.2, 0.7, 0.3, 1), visibility 0.35s ease;
  }
  .site-header[data-open] .site-nav {
    transform: translateY(0);
    visibility: visible;
  }

  .nav-status {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem var(--pad);
    border-bottom: 1px solid var(--line);
    background: var(--panel);
    font-family: var(--mono);
    font-size: 0.64rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--mist);
  }

  .nav-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    padding: 14px var(--pad) 18px;
  }
  .nav-item { display: block; }
  .nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 0.7rem;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: rgba(10, 9, 18, 0.5);
    font-size: 1rem;
  }
  .nav-link[aria-current="page"] {
    border-color: var(--gold);
    background: rgba(255, 198, 92, 0.1);
  }
  .nav-link__idx { font-size: 0.62rem; }

  html.nav-locked,
  body.nav-locked { overflow: hidden; }
}

@media (max-width: 600px) {
  .grid--2,
  .grid--3,
  .grid--8,
  .grid--12 { grid-template-columns: minmax(0, 1fr); }
  .footer-nav { grid-template-columns: minmax(0, 1fr); }
  .footer-bottom { align-items: flex-start; }
  .media--phone { max-width: 100%; }
}

/* ============================================================
   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;
  }
  .status-dot { animation: none; }
  .btn:hover,
  .tool-link:hover { transform: none; }
}