/* =========================================================
   8868体育 · 共享站点样式 /assets/site.css
   夜间赛事指挥舱 · 坐标网格 / 玻璃浮岛 / 时间轴索引
   ========================================================= */

/* ---------- 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, 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%;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

table { border-collapse: collapse; }

[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  /* 底色与层次 */
  --cmd-ink: #06111F;
  --cmd-ink-2: #0B1B2D;
  --cmd-glass: #122A40;
  --cmd-line: #1E3A57;
  --cmd-scan: #2C4A63;

  /* 品牌与状态 */
  --cmd-cyan: #22E0D6;
  --cmd-orange: #FF8A3D;
  --cmd-green: #6CFF9E;
  --cmd-red: #FF5A6E;

  /* 文本 */
  --cmd-fog: #EAF2F8;
  --cmd-body: #C9D9E8;
  --cmd-mute: #8FA6BC;
  --cmd-faint: #6B829A;

  /* 半透明层 */
  --cmd-glass-bg: rgba(11, 27, 45, 0.74);
  --cmd-glass-strong: rgba(9, 22, 38, 0.94);
  --cmd-cyan-08: rgba(34, 224, 214, 0.08);
  --cmd-cyan-14: rgba(34, 224, 214, 0.14);
  --cmd-cyan-45: rgba(34, 224, 214, 0.45);
  --cmd-orange-14: rgba(255, 138, 61, 0.14);
  --cmd-line-soft: rgba(30, 58, 87, 0.7);

  /* 尺寸 */
  --cmd-shell: 1160px;
  --cmd-gutter: clamp(16px, 4vw, 40px);
  --cmd-radius: 16px;
  --cmd-radius-sm: 10px;
  --cmd-pill: 999px;

  /* 字体 */
  --cmd-font-display: "Helvetica Neue Condensed", "Arial Narrow", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --cmd-font-serif: "Songti SC", "Source Han Serif SC", "Noto Serif SC", SimSun, Georgia, serif;
  --cmd-font-body: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --cmd-font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --cmd-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --cmd-fast: 180ms;
  --cmd-mid: 240ms;
}

/* ---------- 3. 基础与中文排版 ---------- */
body {
  position: relative;
  z-index: 0;
  min-height: 100vh;
  background-color: var(--cmd-ink);
  color: var(--cmd-body);
  font-family: var(--cmd-font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 坐标网格层 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--cmd-line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--cmd-line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.55;
  -webkit-mask-image: radial-gradient(ellipse 92% 62% at 50% 0%, #000 0%, transparent 82%);
  mask-image: radial-gradient(ellipse 92% 62% at 50% 0%, #000 0%, transparent 82%);
}

/* 扫描光带 */
body::after {
  content: "";
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(34, 224, 214, 0.055) 48%,
    rgba(255, 138, 61, 0.03) 52%,
    transparent 100%
  );
  animation: cmd-scan 8s linear infinite;
}

@keyframes cmd-scan {
  0%   { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

@keyframes cmd-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.42; transform: scale(0.78); }
}

@keyframes cmd-nav-in {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

h1, h2, h3, h4 {
  font-family: var(--cmd-font-display);
  font-weight: 900;
  color: var(--cmd-fog);
  line-height: 1.22;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

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

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

/* ---------- 4. 布局工具 ---------- */
.cmd-shell {
  width: 100%;
  max-width: var(--cmd-shell);
  margin-inline: auto;
  padding-inline: var(--cmd-gutter);
}

.cmd-section {
  margin-block: clamp(48px, 7vw, 96px);
}

.cmd-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
}

.cmd-band {
  position: relative;
  padding-block: clamp(24px, 3vw, 40px);
  border-top: 1px solid var(--cmd-line);
  border-bottom: 1px solid var(--cmd-line);
  background: linear-gradient(90deg, rgba(18, 42, 64, 0.42), rgba(6, 17, 31, 0));
}

/* ---------- 5. 文字与索引 ---------- */
.cmd-num {
  font-family: var(--cmd-font-mono);
  font-feature-settings: "tnum" 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.cmd-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--cmd-font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cmd-cyan);
}

.cmd-eyebrow::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--cmd-cyan);
  flex: 0 0 auto;
}

/* ---------- 6. 面包屑 ---------- */
.cmd-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-family: var(--cmd-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cmd-mute);
}

.cmd-crumbs li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cmd-crumbs li + li::before {
  content: "/";
  color: var(--cmd-line);
}

.cmd-crumbs a {
  color: var(--cmd-mute);
  transition: color var(--cmd-fast) var(--cmd-ease);
}

.cmd-crumbs a:hover { color: var(--cmd-cyan); }

.cmd-crumbs [aria-current="page"] { color: var(--cmd-fog); }

/* ---------- 7. 按钮 ---------- */
.cmd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 22px;
  border-radius: var(--cmd-pill);
  border: 1px solid var(--cmd-line);
  background: rgba(18, 42, 64, 0.6);
  color: var(--cmd-fog);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition:
    transform var(--cmd-fast) var(--cmd-ease),
    border-color var(--cmd-fast) var(--cmd-ease),
    background var(--cmd-fast) var(--cmd-ease),
    color var(--cmd-fast) var(--cmd-ease);
}

.cmd-btn:hover {
  transform: translateY(-1px);
  border-color: var(--cmd-cyan-45);
  background: var(--cmd-cyan-14);
}

.cmd-btn--primary {
  background: var(--cmd-orange);
  border-color: var(--cmd-orange);
  color: #06111F;
}

.cmd-btn--primary:hover {
  background: #FFA268;
  border-color: #FFA268;
  color: #06111F;
}

.cmd-btn--cyan {
  background: var(--cmd-cyan);
  border-color: var(--cmd-cyan);
  color: #06111F;
}

.cmd-btn--cyan:hover {
  background: #5CEBE3;
  border-color: #5CEBE3;
  color: #06111F;
}

/* ---------- 8. 状态标签 ---------- */
.cmd-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--cmd-pill);
  border: 1px solid var(--cmd-line);
  background: rgba(18, 42, 64, 0.65);
  color: var(--cmd-mute);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.6;
  white-space: nowrap;
}

.cmd-tag--live {
  background: var(--cmd-green);
  border-color: var(--cmd-green);
  color: #06111F;
}

.cmd-tag--live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #06111F;
  animation: cmd-pulse 2s ease-in-out infinite;
}

.cmd-tag--warn {
  color: var(--cmd-red);
  border-color: rgba(255, 90, 110, 0.45);
  background: rgba(255, 90, 110, 0.1);
}

.cmd-tag--cyan {
  color: var(--cmd-cyan);
  border-color: var(--cmd-cyan-45);
  background: var(--cmd-cyan-08);
}

/* ---------- 9. 卡片与图例 ---------- */
.cmd-card {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  border-radius: var(--cmd-radius);
  border: 1px solid var(--cmd-line);
  background: var(--cmd-ink-2);
  transition:
    border-color var(--cmd-fast) var(--cmd-ease),
    background var(--cmd-fast) var(--cmd-ease),
    transform var(--cmd-fast) var(--cmd-ease);
}

.cmd-card:hover {
  border-color: var(--cmd-cyan-45);
  background: #0D2036;
  transform: translateY(-2px);
}

.cmd-card__coord {
  position: absolute;
  top: 12px;
  right: 14px;
  font-family: var(--cmd-font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: #2F5478;
  pointer-events: none;
}

.cmd-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  font-family: var(--cmd-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--cmd-mute);
}

.cmd-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.cmd-legend__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cmd-cyan);
  box-shadow: 0 0 0 3px rgba(34, 224, 214, 0.16);
  flex: 0 0 auto;
}

.cmd-legend__dot--orange {
  background: var(--cmd-orange);
  box-shadow: 0 0 0 3px var(--cmd-orange-14);
}

.cmd-legend__dot--green {
  background: var(--cmd-green);
  box-shadow: 0 0 0 3px rgba(108, 255, 158, 0.16);
}

.cmd-legend__dot--red {
  background: var(--cmd-red);
  box-shadow: 0 0 0 3px rgba(255, 90, 110, 0.16);
}

.cmd-legend__dot--mute {
  background: var(--cmd-mute);
  box-shadow: 0 0 0 3px rgba(143, 166, 188, 0.16);
}

/* ---------- 10. 主题筛选 ---------- */
.cmd-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px;
  border-radius: var(--cmd-pill);
  border: 1px solid var(--cmd-line);
  background: rgba(18, 42, 64, 0.5);
}

.cmd-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 16px;
  border-radius: var(--cmd-pill);
  border: 1px solid transparent;
  color: var(--cmd-mute);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition:
    color var(--cmd-fast) var(--cmd-ease),
    background var(--cmd-fast) var(--cmd-ease),
    border-color var(--cmd-fast) var(--cmd-ease);
}

.cmd-chip:hover {
  color: var(--cmd-fog);
  border-color: var(--cmd-cyan-45);
}

.cmd-chip[aria-pressed="true"] {
  background: var(--cmd-cyan);
  border-color: var(--cmd-cyan);
  color: #06111F;
}

.cmd-chip__count {
  font-family: var(--cmd-font-mono);
  font-size: 11px;
  opacity: 0.72;
}

/* ---------- 11. 图片容器基础规则 ---------- */
.cmd-figure {
  margin: 0;
  border-radius: var(--cmd-radius);
  overflow: hidden;
  border: 1px solid var(--cmd-line);
  background: var(--cmd-ink-2);
}

.cmd-figure__frame {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background:
    radial-gradient(circle at 30% 20%, rgba(34, 224, 214, 0.14), transparent 60%),
    linear-gradient(160deg, #0D2036, #06111F);
}

.cmd-figure__frame--wide { aspect-ratio: 21 / 9; }
.cmd-figure__frame--square { aspect-ratio: 1 / 1; }

.cmd-figure__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cmd-figure__cap {
  padding: 10px 14px;
  border-top: 1px solid var(--cmd-line);
  background: rgba(11, 27, 45, 0.9);
  font-family: var(--cmd-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cmd-mute);
}

/* ---------- 12. 时间轴基础件 ---------- */
.cmd-timeline {
  display: flex;
  gap: 0;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--cmd-line) transparent;
}

.cmd-timeline__node {
  position: relative;
  flex: 0 0 auto;
  width: min(260px, 74vw);
  padding: 22px 20px 18px 0;
  border-top: 1px solid var(--cmd-line);
}

.cmd-timeline__node::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cmd-ink);
  border: 2px solid var(--cmd-cyan);
}

/* ---------- 13. 正文容器 ---------- */
.cmd-prose {
  max-width: 72ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--cmd-body);
}

.cmd-prose > * + * { margin-top: 1.1em; }

.cmd-prose h2 {
  margin-top: 2em;
  font-size: clamp(22px, 2.4vw, 28px);
  letter-spacing: -0.01em;
}

.cmd-prose h3 {
  margin-top: 1.8em;
  font-family: var(--cmd-font-serif);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 0.01em;
  color: var(--cmd-fog);
  line-height: 1.5;
}

.cmd-prose p { color: var(--cmd-body); }

.cmd-prose a {
  color: var(--cmd-cyan);
  border-bottom: 1px solid var(--cmd-cyan-45);
  transition: border-color var(--cmd-fast) var(--cmd-ease);
}

.cmd-prose a:hover { border-bottom-color: var(--cmd-cyan); }

.cmd-prose strong { color: var(--cmd-fog); }

.cmd-prose ul,
.cmd-prose ol {
  padding-left: 1.3em;
  display: grid;
  gap: 0.45em;
}

.cmd-prose li { color: var(--cmd-body); }

.cmd-prose ul li { list-style: square; }
.cmd-prose ol li { list-style: decimal; }
.cmd-prose li::marker { color: var(--cmd-cyan); }

.cmd-prose blockquote {
  padding-left: 16px;
  border-left: 2px solid var(--cmd-orange);
  font-family: var(--cmd-font-serif);
  color: var(--cmd-mute);
}

.cmd-prose code {
  padding: 0.12em 0.42em;
  border-radius: 6px;
  border: 1px solid var(--cmd-line);
  background: rgba(18, 42, 64, 0.85);
  font-family: var(--cmd-font-mono);
  font-size: 0.92em;
}

/* ---------- 14. 跳过链接 ---------- */
.skip-link {
  position: fixed;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1200;
  padding: 10px 20px;
  border-radius: var(--cmd-pill);
  background: var(--cmd-cyan);
  color: #06111F;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.02em;
  transition: top var(--cmd-fast) var(--cmd-ease);
}

.skip-link:focus {
  top: 14px;
  outline: 2px solid var(--cmd-orange);
  outline-offset: 3px;
}

/* ---------- 15. 头部：悬浮胶囊浮岛 ---------- */
.cmd-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 14px var(--cmd-gutter) 0;
  transition: padding var(--cmd-mid) var(--cmd-ease);
}

.cmd-header__shell {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 22px);
  max-width: var(--cmd-shell);
  margin-inline: auto;
  padding: 9px clamp(12px, 1.8vw, 20px);
  border-radius: var(--cmd-pill);
  border: 1px solid var(--cmd-line);
  background: var(--cmd-glass-bg);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
  box-shadow:
    0 20px 44px -28px rgba(0, 0, 0, 0.95),
    inset 0 1px 0 rgba(234, 242, 248, 0.06);
  transition:
    padding var(--cmd-mid) var(--cmd-ease),
    background var(--cmd-mid) var(--cmd-ease),
    border-color var(--cmd-mid) var(--cmd-ease),
    border-radius var(--cmd-mid) var(--cmd-ease);
}

.cmd-header[data-stuck="true"] { padding-top: 8px; }

.cmd-header[data-stuck="true"] .cmd-header__shell {
  padding-block: 6px;
  background: var(--cmd-glass-strong);
  border-color: rgba(34, 224, 214, 0.22);
  border-radius: var(--cmd-pill);
}

/* 品牌 */
.cmd-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  min-height: 42px;
  border-radius: var(--cmd-radius-sm);
}

.cmd-brand__mark {
  position: relative;
  width: 26px;
  height: 26px;
  flex: 0 0 auto;
  border-radius: 8px;
  background: conic-gradient(from 210deg, var(--cmd-cyan), var(--cmd-orange), var(--cmd-cyan));
  box-shadow:
    0 0 0 1px rgba(6, 17, 31, 0.9),
    0 0 18px rgba(34, 224, 214, 0.35);
}

.cmd-brand__mark::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 3px;
  background: var(--cmd-ink);
}

.cmd-brand__text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.cmd-brand__name {
  display: block;
  font-family: var(--cmd-font-display);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--cmd-fog);
}

.cmd-brand__desc {
  display: block;
  font-family: var(--cmd-font-mono);
  font-size: 10px;
  line-height: 1.4;
  letter-spacing: 0.14em;
  color: var(--cmd-mute);
}

/* 导航 */
.cmd-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.cmd-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.cmd-nav__item { display: flex; }

.cmd-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: var(--cmd-pill);
  font-size: 14px;
  font-weight: 500;
  color: var(--cmd-mute);
  white-space: nowrap;
  transition:
    color var(--cmd-fast) var(--cmd-ease),
    background var(--cmd-fast) var(--cmd-ease),
    box-shadow var(--cmd-fast) var(--cmd-ease);
}

.cmd-nav__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 3px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cmd-cyan), var(--cmd-orange));
  transform: translateX(-50%);
  transition: width var(--cmd-fast) var(--cmd-ease);
}

.cmd-nav__link:hover {
  color: var(--cmd-fog);
  background: var(--cmd-cyan-08);
}

.cmd-nav__link:hover::after { width: 16px; }

.cmd-nav__link[aria-current="page"] {
  color: var(--cmd-fog);
  background: var(--cmd-cyan-14);
  box-shadow: inset 0 0 0 1px var(--cmd-cyan-45);
}

.cmd-nav__link[aria-current="page"]::after { width: 16px; }

/* 右侧工具区 */
.cmd-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.cmd-tool {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  border-radius: var(--cmd-pill);
  border: 1px solid transparent;
  font-family: var(--cmd-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cmd-mute);
  transition:
    color var(--cmd-fast) var(--cmd-ease),
    border-color var(--cmd-fast) var(--cmd-ease),
    background var(--cmd-fast) var(--cmd-ease);
}

.cmd-tool:hover {
  color: var(--cmd-cyan);
  border-color: var(--cmd-cyan-45);
  background: var(--cmd-cyan-08);
}

.cmd-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: var(--cmd-pill);
  background: var(--cmd-orange);
  color: #06111F;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
  box-shadow: 0 8px 20px -12px rgba(255, 138, 61, 0.9);
  transition:
    transform var(--cmd-fast) var(--cmd-ease),
    background var(--cmd-fast) var(--cmd-ease),
    box-shadow var(--cmd-fast) var(--cmd-ease);
}

.cmd-cta:hover {
  background: #FFA268;
  transform: translateY(-1px);
  box-shadow: 0 12px 24px -12px rgba(255, 138, 61, 1);
}

/* 移动导航按钮 */
.cmd-navtoggle {
  position: relative;
  display: none;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border-radius: 50%;
  border: 1px solid var(--cmd-line);
  background: rgba(18, 42, 64, 0.7);
  transition: border-color var(--cmd-fast) var(--cmd-ease), background var(--cmd-fast) var(--cmd-ease);
}

.cmd-navtoggle:hover {
  border-color: var(--cmd-cyan-45);
  background: var(--cmd-cyan-08);
}

.cmd-navtoggle__bar {
  position: absolute;
  left: 50%;
  width: 16px;
  height: 1.5px;
  border-radius: 2px;
  background: var(--cmd-fog);
  transform: translateX(-50%);
  transition:
    transform 200ms var(--cmd-ease),
    opacity 140ms linear,
    background var(--cmd-fast) var(--cmd-ease);
}

.cmd-navtoggle__bar:nth-child(1) { top: 14px; }
.cmd-navtoggle__bar:nth-child(2) { top: 19px; }
.cmd-navtoggle__bar:nth-child(3) { top: 24px; }

.cmd-navtoggle[aria-expanded="true"] { border-color: var(--cmd-cyan); }

.cmd-navtoggle[aria-expanded="true"] .cmd-navtoggle__bar:nth-child(1) {
  transform: translateX(-50%) translateY(5px) rotate(45deg);
  background: var(--cmd-cyan);
}

.cmd-navtoggle[aria-expanded="true"] .cmd-navtoggle__bar:nth-child(2) {
  opacity: 0;
}

.cmd-navtoggle[aria-expanded="true"] .cmd-navtoggle__bar:nth-child(3) {
  transform: translateX(-50%) translateY(-5px) rotate(-45deg);
  background: var(--cmd-cyan);
}

/* ---------- 16. 页脚 ---------- */
.cmd-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 104px);
  background: var(--cmd-ink-2);
  border-top: 1px solid var(--cmd-line);
  overflow: hidden;
}

.cmd-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cmd-cyan), var(--cmd-orange), transparent);
  opacity: 0.75;
}

.cmd-footer::after {
  content: "";
  position: absolute;
  left: 34%;
  right: -12%;
  bottom: -46%;
  height: 420px;
  pointer-events: none;
  background: radial-gradient(circle at 50% 50%, rgba(34, 224, 214, 0.1), transparent 68%);
}

.cmd-footer__inner {
  position: relative;
  z-index: 1;
  max-width: var(--cmd-shell);
  margin-inline: auto;
  padding: clamp(40px, 6vw, 72px) var(--cmd-gutter) 0;
}

.cmd-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 56px);
}

.cmd-footer__brand { min-width: 0; }

.cmd-brand--footer {
  display: inline-flex;
  min-height: 36px;
}

.cmd-brand--footer .cmd-brand__name { font-size: 21px; }

.cmd-footer__tagline {
  margin-top: 14px;
  max-width: 26ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cmd-mute);
}

.cmd-footer__coord {
  margin-top: 16px;
  font-family: var(--cmd-font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: #2F5478;
}

.cmd-footer__col { min-width: 0; }

.cmd-footer__coltitle {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-family: var(--cmd-font-serif);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--cmd-fog);
}

.cmd-footer__coltitle::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  background: var(--cmd-cyan);
  border-radius: 1px;
  transform: rotate(45deg);
}

.cmd-footer__links {
  display: grid;
  gap: 9px;
}

.cmd-footer__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  color: var(--cmd-mute);
  transition: color var(--cmd-fast) var(--cmd-ease);
}

.cmd-footer__link::before {
  content: "";
  width: 10px;
  height: 1px;
  flex: 0 0 auto;
  background: var(--cmd-line);
  transition: background var(--cmd-fast) var(--cmd-ease);
}

.cmd-footer__link:hover { color: var(--cmd-fog); }
.cmd-footer__link:hover::before { background: var(--cmd-cyan); }

.cmd-footer__contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(216px, 1fr));
  gap: 12px 28px;
  margin-top: clamp(32px, 4vw, 48px);
  padding-top: 24px;
  border-top: 1px solid var(--cmd-line);
}

.cmd-footer__contactitem {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--cmd-body);
  word-break: break-word;
}

.cmd-footer__label {
  font-family: var(--cmd-font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--cmd-mute);
}

.cmd-footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  margin-top: clamp(28px, 3.5vw, 40px);
  padding-block: 20px 28px;
  border-top: 1px solid var(--cmd-line);
}

.cmd-footer__legal {
  font-size: 12.5px;
  color: var(--cmd-mute);
}

.cmd-footer__note {
  max-width: 62ch;
  font-size: 12px;
  line-height: 1.7;
  color: var(--cmd-faint);
}

/* ---------- 17. 响应式 ---------- */
@media (max-width: 1040px) {
  .cmd-header__shell {
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 10px 8px 14px;
    border-radius: 20px;
  }

  .cmd-brand__desc { display: none; }

  .cmd-tools {
    order: 2;
    margin-left: auto;
  }

  .cmd-tool { display: none; }

  .cmd-cta {
    min-height: 36px;
    padding: 0 12px;
    font-size: 12px;
  }

  .cmd-navtoggle {
    display: block;
    order: 3;
  }

  .cmd-nav {
    order: 4;
    flex: 1 0 100%;
    justify-content: flex-start;
    display: none;
  }

  .cmd-nav[data-open="true"] {
    display: block;
    animation: cmd-nav-in var(--cmd-fast) var(--cmd-ease) both;
  }

  .cmd-nav__list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 2px;
    margin-top: 8px;
    padding: 10px 0 4px;
    border-top: 1px solid var(--cmd-line);
  }

  .cmd-nav__link {
    padding: 11px 14px;
    border-radius: 12px;
    font-size: 15px;
  }

  .cmd-nav__link::after { display: none; }
}

@media (max-width: 900px) {
  .cmd-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }

  .cmd-footer__grid { grid-template-columns: 1fr 1fr; }

  .cmd-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  body { font-size: 15.5px; }

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

  .cmd-footer__grid { grid-template-columns: 1fr; }

  .cmd-footer__contact { grid-template-columns: 1fr; }

  .cmd-footer__base { flex-direction: column; }

  .cmd-chips {
    border-radius: var(--cmd-radius);
    padding: 8px;
  }

  .cmd-chip { flex: 1 1 auto; justify-content: center; }

  .cmd-prose { font-size: 15.5px; }

  .cmd-timeline__node { width: min(240px, 78vw); }
}

/* ---------- 18. 减少动态偏好 ---------- */
@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;
  }

  body::after { display: none; }

  .cmd-tag--live::before { animation: none; }

  .cmd-card:hover,
  .cmd-btn:hover,
  .cmd-cta:hover { transform: none; }
}