/* ==========================================================================
   纯净赛场 V3.1 · 共享站点样式 /assets/site.css
   结构：Reset → 变量 → 中文排版 → 通用组件 → 命令栏 → 页脚 → 响应式
   ========================================================================== */

/* ---------- 01 Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--h-header, 56px) + 16px);
}
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd, ul, ol { 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; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; }

/* ---------- 02 变量 ---------- */
:root {
  --ink-900: #0A0E13;
  --ink-800: #0E1723;
  --line-700: #22303F;
  --blue-500: #2B5BFF;
  --blue-300: #7EA0FF;
  --lime-400: #B8FF3D;
  --lime-300: #CDFF77;
  --orange-400: #FF7A2E;
  --teal-900: #0C2E2C;
  --indigo-900: #1A1640;
  --wine-700: #5A1526;
  --mist-100: #D7DEE6;
  --mist-600: #93A1B0;
  --mist-700: #6C7C8C;
  --white: #FFFFFF;
  --paper-050: #F2F6FA;

  --font-display: "Inter Tight", "Inter", "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", "Roboto Mono", Consolas, "Liberation Mono", monospace;

  --h-header: 56px;
  --h-header-tight: 44px;
  --shell: 1320px;
  --gap: 24px;
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
  --dur: 180ms;
}

/* ---------- 03 基础与中文排版 ---------- */
body {
  padding-top: var(--h-header);
  background-color: var(--ink-900);
  background-image:
    linear-gradient(90deg, rgba(34, 48, 63, 0.30) 0 1px, transparent 1px 100%),
    linear-gradient(0deg, rgba(34, 48, 63, 0.30) 0 1px, transparent 1px 100%);
  background-size: 64px 64px, 64px 64px;
  background-position: -1px -1px;
  color: var(--mist-100);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  color: var(--white);
  line-height: 1.04;
  letter-spacing: 0.02em;
}
h1 { font-size: clamp(38px, 6vw, 76px); line-height: 0.98; }
h2 { font-size: clamp(28px, 3.6vw, 46px); }
h3 { font-size: clamp(20px, 2.1vw, 26px); line-height: 1.2; }
h4 { font-size: 18px; line-height: 1.3; }

strong { color: var(--white); font-weight: 700; }
::selection { background: var(--lime-400); color: #070A0E; }

:focus-visible { outline: 2px solid var(--orange-400); outline-offset: 3px; }

/* ---------- 04 通用容器与网格 ---------- */
.shell { width: 100%; max-width: var(--shell); margin: 0 auto; padding: 0 24px; }
.shell--wide { max-width: 1440px; }
.shell--narrow { max-width: 880px; }

.zone { position: relative; padding: 80px 0; }
.zone--tight { padding: 48px 0; }
.zone--ink { background: var(--ink-800); }
.zone--teal { background: var(--teal-900); }
.zone--indigo { background: var(--indigo-900); }
.zone--wine { background: var(--wine-700); }
.zone--paper { background: var(--paper-050); color: #101821; }
.zone--paper h1, .zone--paper h2, .zone--paper h3, .zone--paper h4 { color: #0A0E13; }
.zone--paper .eyebrow { color: var(--blue-500); }
.zone--paper .rule { background: rgba(10, 14, 19, 0.16); }
.zone--paper .panel { background: #FFFFFF; border-color: rgba(10, 14, 19, 0.14); }
.zone--paper .stat__label { color: #55677A; }

.grid { display: grid; gap: var(--gap); }
.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--7-5 { grid-template-columns: 7fr 5fr; }
.grid--8-4 { grid-template-columns: 8fr 4fr; }
.grid--5-7 { grid-template-columns: 5fr 7fr; }
.grid--3-6-3 { grid-template-columns: 3fr 6fr 3fr; }

.rule { height: 1px; border: 0; background: var(--line-700); }
.rule--ticks {
  height: 6px;
  background-color: transparent;
  background-image: repeating-linear-gradient(90deg, var(--line-700) 0 1px, transparent 1px 10px);
}

/* ---------- 05 索引、标签、按钮 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-300);
  line-height: 1.4;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: currentColor; }
.eyebrow--lime { color: var(--lime-400); }
.eyebrow--muted { color: var(--mist-700); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.6;
  border: 1px solid var(--line-700);
  background: rgba(14, 23, 35, 0.6);
  color: var(--mist-600);
}
.chip--lime { color: var(--lime-400); border-color: rgba(184, 255, 61, 0.42); }
.chip--blue { color: var(--blue-300); border-color: rgba(126, 160, 255, 0.42); }
.chip--orange { color: var(--orange-400); border-color: rgba(255, 122, 46, 0.42); }
.chip__dot { width: 5px; height: 5px; border-radius: 50%; background: currentColor; flex: 0 0 auto; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1.2;
  border: 1px solid transparent;
  border-radius: 0;
  cursor: pointer;
  transition:
    background var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}
.btn--lime { background: var(--lime-400); color: #070A0E; border-color: var(--lime-400); }
.btn--lime:hover { background: var(--lime-300); border-color: var(--lime-300); transform: translateY(-1px); }
.btn--primary { background: var(--blue-500); color: #FFFFFF; border-color: var(--blue-500); }
.btn--primary:hover { background: #4370FF; border-color: #4370FF; transform: translateY(-1px); }
.btn--outline { background: transparent; color: var(--mist-100); border-color: var(--line-700); }
.btn--outline:hover { border-color: var(--lime-400); color: var(--white); }
.btn--sm { padding: 7px 12px; font-size: 12px; letter-spacing: 0.06em; }
.btn--block { display: flex; width: 100%; }
.zone--paper .btn--outline { color: #101821; border-color: rgba(10, 14, 19, 0.24); }
.zone--paper .btn--outline:hover { border-color: var(--blue-500); color: var(--blue-500); }

/* ---------- 06 卡片、框景、数据件 ---------- */
.panel {
  background: var(--ink-800);
  border: 1px solid var(--line-700);
  padding: 24px;
}
.panel--stack { box-shadow: 6px 6px 0 0 rgba(34, 48, 63, 0.9); }

.frame {
  position: relative;
  border: 1px solid var(--line-700);
  background: rgba(14, 23, 35, 0.55);
  padding: clamp(20px, 3vw, 40px);
}
.frame::before, .frame::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 1px solid var(--lime-400);
}
.frame::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.frame::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.stat { display: flex; flex-direction: column; gap: 6px; }
.stat__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--lime-400);
}
.stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist-600);
}

.databar { display: grid; gap: 8px; }
.databar__head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist-600);
}
.databar__track {
  position: relative;
  height: 8px;
  background: var(--ink-900);
  border: 1px solid var(--line-700);
  overflow: hidden;
}
.databar__fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--blue-500);
  transition: width 600ms var(--ease);
}
.databar__fill--lime { background: var(--lime-400); }
.databar__fill--orange { background: var(--orange-400); }

/* ---------- 07 图片容器 ---------- */
.media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  background: var(--ink-800);
  border: 1px solid var(--line-700);
}
.media > img { width: 100%; height: 100%; object-fit: cover; }
.media--16x9 { aspect-ratio: 16 / 9; }
.media--21x9 { aspect-ratio: 21 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--placeholder {
  background-image:
    linear-gradient(135deg, rgba(43, 91, 255, 0.18) 0 1px, transparent 1px 100%),
    linear-gradient(0deg, rgba(34, 48, 63, 0.6) 0 1px, transparent 1px 100%);
  background-size: 14px 14px, 28px 28px;
}
.media__badge {
  position: absolute;
  top: 0;
  left: 0;
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--lime-400);
  background: var(--ink-900);
  border-right: 1px solid var(--line-700);
  border-bottom: 1px solid var(--line-700);
}
.media__caption {
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist-700);
}

/* ---------- 08 面包屑与长文 ---------- */
.crumbs { padding: 16px 0; border-bottom: 1px solid var(--line-700); }
.crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist-700);
}
.crumbs__list li { display: inline-flex; align-items: center; }
.crumbs__list li::after { content: "/"; margin-left: 8px; color: var(--line-700); }
.crumbs__list li:last-child::after { content: ""; margin: 0; }
.crumbs a { color: var(--mist-600); transition: color var(--dur) var(--ease); }
.crumbs a:hover { color: var(--lime-400); }
.crumbs [aria-current="page"] { color: var(--mist-100); }

.prose { font-size: 17px; line-height: 1.85; }
.prose p { max-width: 36em; }
.prose p + p { margin-top: 1.1em; }
.prose h3 { margin: 1.8em 0 0.6em; }
.prose ul { margin: 1em 0; display: grid; gap: 8px; }
.prose li { position: relative; padding-left: 18px; max-width: 36em; }
.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 8px;
  height: 1px;
  background: var(--lime-400);
}
.prose a { color: var(--blue-300); border-bottom: 1px solid rgba(126, 160, 255, 0.4); }
.prose a:hover { color: var(--lime-400); border-bottom-color: var(--lime-400); }

[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 240ms var(--ease), transform 240ms var(--ease);
}
[data-reveal][data-revealed="true"] { opacity: 1; transform: none; }

/* ---------- 09 跳转链接 ---------- */
.skip-link {
  position: fixed;
  left: 12px;
  top: -80px;
  z-index: 120;
  padding: 10px 16px;
  background: var(--lime-400);
  color: #070A0E;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: 12px; }
#main-content { scroll-margin-top: calc(var(--h-header) + 16px); }

/* ---------- 10 命令栏 ---------- */
.cmd-bar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  background: rgba(10, 14, 19, 0.94);
  border-bottom: 1px solid var(--line-700);
  color: var(--white);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.cmd-bar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background-image: repeating-linear-gradient(90deg, var(--line-700) 0 1px, transparent 1px 12px);
  opacity: 0.85;
  pointer-events: none;
}

.cmd-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px;
  height: var(--h-header);
  display: flex;
  align-items: center;
  gap: 20px;
  transition: height var(--dur) var(--ease);
}
[data-site-header][data-scrolled="true"] .cmd-inner { height: var(--h-header-tight); }

.cmd-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 4px 0;
}
.cmd-brand__index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  line-height: 1.5;
  color: var(--lime-400);
  border: 1px solid rgba(184, 255, 61, 0.45);
  padding: 1px 5px;
}
.cmd-brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 16px;
  letter-spacing: 0.1em;
  color: var(--white);
  white-space: nowrap;
}
.cmd-version {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  line-height: 1.4;
  color: var(--blue-300);
  background: var(--ink-800);
  border: 1px solid var(--line-700);
  padding: 2px 6px;
  white-space: nowrap;
}

.cmd-nav { flex: 1 1 auto; min-width: 0; }
.cmd-nav__list { display: flex; align-items: center; gap: 2px; }
.cmd-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  font-size: 13px;
  line-height: 1.3;
  color: var(--mist-600);
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.cmd-nav__link:hover { color: var(--white); }
.cmd-nav__num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: #54677A;
  transition: color var(--dur) var(--ease);
}
.cmd-nav__link[aria-current="page"] { color: var(--white); }
.cmd-nav__link[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--lime-400);
}
.cmd-nav__link[aria-current="page"]::after {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--lime-400);
  flex: 0 0 auto;
}
.cmd-nav__link[aria-current="page"] .cmd-nav__num { color: var(--lime-400); }

.cmd-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  margin-left: auto;
}
.cmd-actions__primary { white-space: nowrap; letter-spacing: 0.08em; }
.cmd-icon {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist-600);
  border: 1px solid transparent;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.cmd-icon:hover { color: var(--white); border-color: var(--line-700); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border: 1px solid var(--line-700);
  color: var(--mist-100);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.nav-toggle:hover { border-color: var(--blue-300); }
.nav-toggle[aria-expanded="true"] { color: var(--lime-400); border-color: var(--lime-400); }
.nav-toggle__bars { display: inline-flex; flex-direction: column; gap: 3px; width: 14px; }
.nav-toggle__bars i { display: block; height: 1px; width: 100%; background: currentColor; }
.nav-toggle__label { line-height: 1; }

.cmd-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  pointer-events: none;
}
.cmd-progress__fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--lime-400);
  box-shadow: 0 0 12px rgba(184, 255, 61, 0.55);
}

/* ---------- 11 页脚铭牌 ---------- */
.plate {
  position: relative;
  background: var(--ink-800);
  border-top: 1px solid var(--line-700);
  color: var(--mist-100);
}
.plate::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background-image: repeating-linear-gradient(90deg, var(--lime-400) 0 1px, transparent 1px 16px);
  opacity: 0.5;
  pointer-events: none;
}
.plate__grid {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 64px 24px 40px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: 32px;
}
.plate__col {
  min-width: 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-700);
}
.plate__grid > .plate__col:nth-child(1) { border-top-color: var(--blue-500); }
.plate__grid > .plate__col:nth-child(2) { border-top-color: var(--lime-400); }
.plate__grid > .plate__col:nth-child(3) { border-top-color: var(--orange-400); }
.plate__grid > .plate__col:nth-child(4) { border-top-color: var(--blue-300); }

.plate__brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 0.1em;
  line-height: 1.2;
  color: var(--white);
}
.plate__meta { margin-top: 12px; }
.plate__facts {
  margin-top: 16px;
  display: grid;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist-700);
}
.plate__title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  line-height: 1.4;
  text-transform: uppercase;
  color: var(--mist-700);
  margin-bottom: 16px;
}
.plate__list { display: grid; gap: 10px; }
.plate__list a {
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist-600);
  transition: color var(--dur) var(--ease);
}
.plate__list a:hover { color: var(--lime-400); }
.plate__list--plain li {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--mist-700);
  word-break: break-word;
}

.plate__base {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 20px 24px 40px;
  border-top: 1px solid var(--line-700);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist-700);
}
.plate__legal { line-height: 1.7; }
.plate__links { display: flex; flex-wrap: wrap; gap: 18px; }
.plate__links a { color: var(--mist-600); transition: color var(--dur) var(--ease); }
.plate__links a:hover { color: var(--lime-400); }

/* ---------- 12 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  background: var(--ink-900);
  border: 1px solid var(--line-700);
  color: var(--mist-100);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease),
    visibility var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.to-top[data-visible="true"] { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { border-color: var(--lime-400); color: var(--lime-400); }
.to-top__arrow { font-size: 14px; line-height: 1; }
.to-top__label { line-height: 1; }

/* ---------- 13 响应式 ---------- */
@media (max-width: 1180px) {
  .cmd-nav__link { padding: 8px 7px; font-size: 12px; }
  .cmd-nav__num { display: none; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  :root { --h-header: 56px; }
  .nav-toggle { display: inline-flex; }
  .cmd-inner { gap: 12px; padding: 0 16px; }
  .cmd-actions { gap: 6px; }
  .cmd-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    background: var(--ink-900);
    border-bottom: 1px solid var(--line-700);
  }
  .cmd-nav[data-open="true"] { display: block; }
  .cmd-nav__list {
    display: flex;
    flex-wrap: nowrap;
    gap: 6px;
    padding: 12px 16px;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--line-700) transparent;
  }
  .cmd-nav__list::-webkit-scrollbar { height: 4px; }
  .cmd-nav__list::-webkit-scrollbar-thumb { background: var(--line-700); }
  .cmd-nav__list > li { flex: 0 0 auto; scroll-snap-align: start; }
  .cmd-nav__link {
    border: 1px solid var(--line-700);
    padding: 8px 12px;
    font-size: 13px;
    scroll-snap-align: start;
  }
  .cmd-nav__link[aria-current="page"] { border-color: rgba(184, 255, 61, 0.55); }
  .grid--3, .grid--7-5, .grid--8-4, .grid--5-7, .grid--3-6-3 { grid-template-columns: minmax(0, 1fr); }
  .zone { padding: 56px 0; }
  .zone--tight { padding: 36px 0; }
  .plate__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 48px 24px 32px; }
}

@media (max-width: 720px) {
  .cmd-icon { display: none; }
  .shell { padding: 0 18px; }
  .grid--2, .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .plate__base { padding: 18px 18px 32px; }
  .plate__grid { padding: 40px 18px 28px; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .cmd-brand__name { font-size: 15px; letter-spacing: 0.06em; }
  .cmd-version { display: none; }
  .plate__grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .to-top { right: 12px; bottom: 12px; padding: 9px 10px; }
}

@media (max-width: 420px) {
  .nav-toggle__label { display: none; }
  .cmd-actions__primary { padding: 7px 10px; font-size: 11px; }
}

/* ---------- 14 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .databar__fill { transition: none; }
  .to-top { transform: none; }
}