/* ============================================================
   天行赛事 · 共享样式 /assets/site.css
   深空蓝控制台底 + 档案纸面阅读带 + 等宽索引系统
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root {
  --ink-900: #071A2F;
  --ink-800: #1C2229;
  --panel: #0E2A45;
  --panel-hi: #123A5C;
  --paper: #F2E8D5;
  --paper-ink: #2B1F17;
  --paper-line: rgba(43, 31, 23, 0.22);

  --cyan: #2DE2E6;
  --lava: #FF6B35;
  --mint: #5CE1A4;
  --mist: #A9B7C6;
  --white: #F7FAFC;

  --line: rgba(169, 183, 198, 0.24);
  --line-strong: rgba(169, 183, 198, 0.46);
  --cyan-08: rgba(45, 226, 230, 0.08);
  --lava-08: rgba(255, 107, 53, 0.08);
  --mint-08: rgba(92, 225, 164, 0.08);

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", "Roboto Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --maxw: 1440px;
  --read: 760px;
  --gap: 24px;
  --pad-x: clamp(16px, 2.6vw, 40px);
  --head-h: 68px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* ---------- 2. Reset / 基础 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  overflow-x: clip;
}

body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.8;
  color: var(--white);
  background-color: var(--ink-900);
  background-image:
    linear-gradient(rgba(169, 183, 198, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 183, 198, 0.045) 1px, transparent 1px);
  background-size: 120px 120px;
  background-position: center top;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  -webkit-tap-highlight-color: transparent;
}

@media (min-width: 1024px) {
  body { font-size: 18px; }
}

#main-content { scroll-margin-top: 88px; }

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--white);
  text-wrap: balance;
}
h1 { font-size: clamp(2.25rem, 5vw, 4.5rem); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.55rem); letter-spacing: 0; }
h4 { font-size: 1.05rem; letter-spacing: 0.02em; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
a:hover { color: var(--white); }

strong { font-weight: 700; color: var(--white); }

ul, ol { margin: 0 0 1.1em; padding-left: 1.2em; }

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

hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }

::selection { background: var(--cyan); color: #04121F; }

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

/* ---------- 3. 跳过链接 ---------- */
.skip-link {
  position: absolute;
  left: 50%;
  top: 0;
  z-index: 200;
  transform: translate(-50%, -140%);
  padding: 10px 20px;
  background: var(--cyan);
  color: #04121F;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: transform 0.18s var(--ease);
}
.skip-link:focus {
  transform: translate(-50%, 0);
  color: #04121F;
  outline: 2px solid var(--white);
  outline-offset: 2px;
}

/* ---------- 4. 页头 ---------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(7, 26, 47, 0.93);
  -webkit-backdrop-filter: blur(12px) saturate(150%);
  backdrop-filter: blur(12px) saturate(150%);
  border-bottom: 1px solid var(--line);
}

.site-head__inner {
  position: relative;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad-x);
  min-height: var(--head-h);
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr) auto;
  grid-template-areas: "brand meter nav acts";
  align-items: center;
  gap: clamp(10px, 1.4vw, 24px);
}

/* 品牌 */
.brand {
  grid-area: brand;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--white);
  min-width: 0;
}
.brand:hover { color: var(--white); }

.brand__mark {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  background:
    linear-gradient(135deg, rgba(45, 226, 230, 0.16), transparent 70%);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
}

.brand__copy { display: block; min-width: 0; }

.brand__name {
  display: block;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.05em;
  line-height: 1.15;
}

.brand__tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  line-height: 1.5;
  color: var(--mist);
  white-space: nowrap;
}

/* 索引读数 */
.head-meter {
  grid-area: meter;
  display: none;
  align-items: center;
  gap: 7px;
  margin: 0;
  padding: 5px 10px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  line-height: 1.6;
  color: var(--mist);
  white-space: nowrap;
}
.head-meter__dot {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  background: var(--lava);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.16);
}
.head-meter__k { color: var(--mist); }
.head-meter__v { color: var(--white); font-weight: 700; }
.head-meter__s { color: rgba(169, 183, 198, 0.5); }

/* 命令栏导航 */
.cmdbar {
  grid-area: nav;
  min-width: 0;
  display: flex;
  align-items: center;
}

.cmdbar__list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}
.cmdbar__list::-webkit-scrollbar { height: 3px; }
.cmdbar__list::-webkit-scrollbar-thumb { background: var(--line-strong); }

.cmdbar__item { flex: 0 0 auto; }

.cmdbar__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 7px 11px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition:
    color 0.18s var(--ease),
    background-color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}
.cmdbar__link:hover {
  color: var(--white);
  background: rgba(169, 183, 198, 0.07);
  border-bottom-color: var(--line-strong);
}
.cmdbar__link[aria-current="page"] {
  color: var(--cyan);
  background: var(--cyan-08);
  border-bottom-color: var(--cyan);
}
.cmdbar__link[aria-current="page"] .cmdbar__idx { color: var(--cyan); }
.cmdbar__link:focus-visible { outline: 2px solid var(--cyan); outline-offset: -2px; }

.cmdbar__idx {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: rgba(169, 183, 198, 0.6);
  transition: color 0.18s var(--ease);
}
.cmdbar__txt { display: inline-block; }

/* 头部动作区 */
.head-acts {
  grid-area: acts;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 移动端切换按钮 */
.nav-toggle {
  display: none;
  grid-area: toggle;
  align-items: center;
  gap: 9px;
  min-height: 40px;
  padding: 8px 13px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--white);
  background: transparent;
  border: 1px solid var(--line-strong);
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.nav-toggle:hover { color: var(--cyan); border-color: var(--cyan); }
.nav-toggle__ico {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 16px;
  height: 12px;
}
.nav-toggle__ico span {
  display: block;
  height: 1.5px;
  width: 100%;
  background: currentColor;
  transition: transform 0.24s var(--ease);
}
.site-head[data-open] .nav-toggle {
  color: var(--cyan);
  border-color: var(--cyan);
  background: var(--cyan-08);
}
.site-head[data-open] .nav-toggle__ico span:nth-child(1) {
  transform: translateY(2.75px) rotate(45deg);
}
.site-head[data-open] .nav-toggle__ico span:nth-child(2) {
  transform: translateY(-2.75px) rotate(-45deg);
}

/* 滚动进度线 */
.scroll-line {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--mint) 60%, var(--lava) 100%);
  transform: scaleX(var(--sp, 0));
  transform-origin: 0 50%;
  pointer-events: none;
}

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 38px;
  padding: 8px 16px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  background: transparent;
  color: var(--white);
  cursor: pointer;
  transition:
    background-color 0.18s var(--ease),
    color 0.18s var(--ease),
    border-color 0.18s var(--ease),
    transform 0.18s var(--ease);
}
.btn:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

.btn--wire {
  color: var(--mist);
  border-color: var(--line-strong);
}
.btn--wire:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  background: var(--cyan-08);
}

.btn--lava {
  color: #140A04;
  font-weight: 800;
  background: var(--lava);
  border-color: var(--lava);
}
.btn--lava:hover {
  color: #140A04;
  background: #FF8555;
  border-color: #FF8555;
  transform: translateY(-1px);
}

.btn--cyan {
  color: #04121F;
  font-weight: 800;
  background: var(--cyan);
  border-color: var(--cyan);
}
.btn--cyan:hover {
  color: #04121F;
  background: #6BEEF0;
  border-color: #6BEEF0;
  transform: translateY(-1px);
}

.btn--ghost {
  color: var(--white);
  border-color: var(--line);
}
.btn--ghost:hover {
  color: var(--white);
  border-color: var(--mist);
  background: rgba(169, 183, 198, 0.1);
}

.btn--block { width: 100%; }

/* ---------- 6. 布局工具 ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}
.wrap--read { max-width: calc(var(--read) + var(--pad-x) * 2); }

.section { padding-block: clamp(48px, 7vw, 96px); }
.section--tight { padding-block: clamp(28px, 4vw, 56px); }

.grid12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap);
}
.g-span-3 { grid-column: span 3; }
.g-span-4 { grid-column: span 4; }
.g-span-5 { grid-column: span 5; }
.g-span-6 { grid-column: span 6; }
.g-span-7 { grid-column: span 7; }
.g-span-8 { grid-column: span 8; }
.g-full { grid-column: 1 / -1; }

@media (max-width: 900px) {
  .g-span-3, .g-span-4, .g-span-5,
  .g-span-6, .g-span-7, .g-span-8 { grid-column: 1 / -1; }
}

/* ---------- 7. 正文与面包屑 ---------- */
.prose {
  max-width: var(--read);
  font-size: 18px;
  line-height: 1.85;
  color: rgba(247, 250, 252, 0.9);
}
.prose h2 { margin-top: 1.9em; }
.prose h3 { margin-top: 1.6em; }
.prose a { color: var(--cyan); }
.prose a:hover { color: var(--white); }

.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}
.crumbs li { display: inline-flex; align-items: center; gap: 8px; }
.crumbs li + li::before {
  content: "/";
  color: rgba(169, 183, 198, 0.45);
}
.crumbs a { color: var(--mist); text-decoration: none; }
.crumbs a:hover { color: var(--cyan); }
.crumbs [aria-current="page"] { color: var(--white); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.index-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 54px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

/* ---------- 8. 资料组件 ---------- */
.panel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: clamp(18px, 2.2vw, 28px);
  transition:
    border-color 0.2s var(--ease),
    background-color 0.2s var(--ease),
    transform 0.2s var(--ease);
}
.panel::before,
.panel::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border: 0 solid var(--cyan);
  opacity: 0.55;
  pointer-events: none;
}
.panel::before { top: -1px; left: -1px; border-top-width: 1px; border-left-width: 1px; }
.panel::after { bottom: -1px; right: -1px; border-bottom-width: 1px; border-right-width: 1px; }
.panel:hover {
  border-color: var(--line-strong);
  background: var(--panel-hi);
  transform: translateY(-2px);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.7;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--mist);
  background: transparent;
  border: 1px solid var(--line-strong);
}
.tag--cyan { color: var(--cyan); border-color: rgba(45, 226, 230, 0.45); background: var(--cyan-08); }
.tag--lava { color: var(--lava); border-color: rgba(255, 107, 53, 0.45); background: var(--lava-08); }
.tag--mint { color: var(--mint); border-color: rgba(92, 225, 164, 0.4); background: var(--mint-08); }

.dot {
  display: inline-block;
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  background: var(--mist);
}
.dot--cyan { background: var(--cyan); box-shadow: 0 0 0 3px rgba(45, 226, 230, 0.16); }
.dot--lava { background: var(--lava); box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.16); }
.dot--mint { background: var(--mint); box-shadow: 0 0 0 3px rgba(92, 225, 164, 0.16); }

.ledger {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  line-height: 1.65;
}
.ledger th,
.ledger td {
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}
.ledger th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
}
.ledger td { color: var(--white); }
.ledger tbody tr:hover td { background: rgba(169, 183, 198, 0.06); }

/* ---------- 9. 图片容器基础规则 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(45, 226, 230, 0.12), rgba(255, 107, 53, 0.07) 62%, transparent),
    var(--panel);
}
.media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(247, 250, 252, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(247, 250, 252, 0.055) 1px, transparent 1px);
  background-size: 48px 48px;
}
.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 4 / 5; }
.media--square { aspect-ratio: 1 / 1; }

.media__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--white);
  background: rgba(7, 26, 47, 0.86);
  border-top: 1px solid var(--line-strong);
  border-right: 1px solid var(--line-strong);
}

/* ---------- 10. 显现动效 ---------- */
.has-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.has-reveal [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 11. 页脚 ---------- */
.site-foot {
  position: relative;
  margin-top: clamp(48px, 7vw, 96px);
  padding-top: clamp(36px, 5vw, 64px);
  background: var(--ink-800);
  color: var(--mist);
  border-top: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.75;
}
.site-foot::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0 18%, var(--lava) 18% 26%, transparent 26%);
}

.foot-grid {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad-x);
  padding-bottom: clamp(28px, 4vw, 48px);
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)) minmax(0, 1.25fr);
  gap: clamp(24px, 3vw, 44px);
}

.brand--foot { margin-bottom: 0; }
.brand--foot .brand__name,
.brand--foot .brand__tag { color: var(--white); }
.brand--foot .brand__tag { color: var(--mist); }

.foot-brand__note {
  margin: 16px 0 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.foot-col__title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--white);
}
.foot-col__idx {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.foot-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}
.foot-link {
  display: inline-block;
  color: var(--mist);
  font-size: 14.5px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.foot-link:hover {
  color: var(--cyan);
  border-bottom-color: rgba(45, 226, 230, 0.55);
}

.foot-defs {
  margin: 0;
  display: grid;
  gap: 10px;
}
.foot-defs__row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
}
.foot-defs dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: rgba(169, 183, 198, 0.7);
}
.foot-defs dd {
  margin: 0;
  font-size: 14px;
  color: var(--white);
  overflow-wrap: anywhere;
}

.foot-contact__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(169, 183, 198, 0.75);
}

.foot-base {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 18px var(--pad-x) calc(26px + env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: rgba(169, 183, 198, 0.78);
}
.foot-base p { margin: 0; }
.foot-base__meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ---------- 12. 响应式：页头 ---------- */
@media (min-width: 1240px) {
  .head-meter { display: flex; }
}

@media (max-width: 1239px) {
  .site-head__inner {
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas: "brand nav acts";
  }
  .head-meter { display: none; }
}

@media (max-width: 960px) {
  :root { --head-h: 58px; }

  .site-head__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas: "brand toggle";
    gap: 10px;
  }
  .head-acts { display: none; }
  .nav-toggle { display: inline-flex; }

  .cmdbar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    display: block;
    max-height: 78vh;
    overflow-y: auto;
    padding: 18px var(--pad-x) calc(18px + env(safe-area-inset-bottom, 0px));
    background: var(--ink-800);
    border-top: 1px solid var(--line-strong);
    box-shadow: 0 -18px 44px rgba(0, 0, 0, 0.5);
    transform: translateY(112%);
    visibility: hidden;
    transition: transform 0.34s var(--ease), visibility 0s linear 0.34s;
  }
  .site-head[data-open] .cmdbar {
    transform: translateY(0);
    visibility: visible;
    transition: transform 0.34s var(--ease), visibility 0s linear 0s;
  }

  .cmdbar__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    overflow: visible;
  }
  .cmdbar__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 14px 13px;
    font-size: 15px;
    border: 1px solid var(--line);
    border-bottom-width: 1px;
    background: rgba(7, 26, 47, 0.5);
  }
  .cmdbar__link[aria-current="page"] {
    border-color: var(--cyan);
    background: var(--cyan-08);
  }
  .cmdbar__idx { font-size: 10.5px; }

  body[data-nav-open] { overscroll-behavior: none; }
}

@media (max-width: 560px) {
  .brand__mark { width: 32px; height: 32px; font-size: 11px; }
  .brand__name { font-size: 17px; }
  .brand__tag { font-size: 9.5px; letter-spacing: 0.08em; }
  .nav-toggle { padding: 8px 10px; font-size: 12px; }
  .cmdbar__list { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 420px) {
  .brand__tag { display: none; }
}

/* ---------- 13. 响应式：页脚 ---------- */
@media (max-width: 1080px) {
  .foot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .foot-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .foot-grid { grid-template-columns: minmax(0, 1fr); }
  .foot-brand { grid-column: auto; }
  .foot-base { justify-content: flex-start; }
}

/* ---------- 14. 减少动态 ---------- */
@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;
  }
  .has-reveal [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .panel:hover,
  .btn--lava:hover,
  .btn--cyan:hover { transform: none; }
}