/* ==========================================================================
   欧凯看台 · 共享样式表 /assets/site.css
   夜场墨绿近单色体系 + 荧光青交互强调 + 橙红数据点 · Bento 模块化信息板
   ========================================================================== */

/* 1. Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 124px;
}
body, h1, h2, h3, h4, p, ul, ol, figure, blockquote, address, dl, dd {
  margin: 0;
}
ul, ol { padding: 0; }
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; }
main { display: block; }
#main-content { scroll-margin-top: 124px; }

/* 2. Tokens --------------------------------------------------------------- */
:root {
  --night: #05140F;
  --night-2: #0A231C;
  --panel: #123329;
  --glass: #1C4638;
  --cyan: #7BF7D0;
  --cyan-deep: #2FE0AE;
  --orange: #FF5A2B;
  --amber: #FFB020;
  --text: #E8F5EF;
  --muted: #9DB8AE;
  --line: #3A5C51;

  --font-display: "Oswald", "Barlow Condensed", "Arial Narrow", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-head: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Inter", "Source Han Sans SC", "Noto Sans SC", "PingFang SC", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", "Consolas", "PingFang SC", monospace;

  --maxw: 1240px;
  --gutter: 24px;
  --radius: 16px;
  --radius-pill: 999px;
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
  --speed: 180ms;
}

/* 3. Base ---------------------------------------------------------------- */
body {
  background-color: var(--night);
  background-image:
    radial-gradient(900px 520px at 10% -10%, rgba(123, 247, 208, 0.07), transparent 70%),
    radial-gradient(760px 460px at 94% 2%, rgba(255, 90, 43, 0.06), transparent 72%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--text);
  letter-spacing: -0.01em;
}
h1 {
  font-size: clamp(34px, 5.6vw, 64px);
  line-height: 1.05;
  font-weight: 900;
  margin-bottom: 18px;
}
h2 {
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.15;
  font-weight: 800;
  margin-bottom: 14px;
}
h3 {
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 10px;
}
p { margin-bottom: 1em; }
a {
  color: var(--cyan);
  text-decoration: none;
  text-underline-offset: 3px;
}
a:hover { text-decoration: underline; }
strong { color: var(--text); font-weight: 700; }
::selection { background: var(--cyan); color: #04140F; }
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

/* 4. Utilities ----------------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.section { padding: 72px 0; }
.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px 28px;
  margin-bottom: 30px;
}
.rule {
  height: 1px;
  border: 0;
  background: var(--line);
  margin: 0;
}
.stack { display: grid; gap: 12px; }
.muted { color: var(--muted); }
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 10px;
}
.annotation {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

/* 5. Buttons ------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--speed) var(--ease), color var(--speed) var(--ease),
    border-color var(--speed) var(--ease), transform var(--speed) var(--ease);
}
.btn:hover { text-decoration: none; }
.btn--solid {
  background: var(--cyan-deep);
  color: #04140F;
  box-shadow: 0 12px 28px -18px rgba(47, 224, 174, 0.95);
}
.btn--solid:hover { background: var(--cyan); transform: translateY(-1px); }
.btn--ghost {
  background: rgba(28, 70, 56, 0.18);
  border-color: var(--line);
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.btn--quiet {
  position: relative;
  padding: 6px 2px;
  border: 0;
  background: none;
  color: var(--cyan);
}
.btn--quiet::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--cyan);
  transform: translateX(-50%);
  transition: width var(--speed) var(--ease);
}
.btn--quiet:hover::after { width: 100%; }

/* 6. Skip link ----------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -70px;
  z-index: 90;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  background: var(--cyan);
  color: #04140F;
  font-weight: 700;
  transition: top var(--speed) var(--ease);
}
.skip-link:focus { top: 10px; text-decoration: none; }

/* 7. Header -------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  isolation: isolate;
}
.announce {
  max-height: 46px;
  overflow: hidden;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
  background:
    linear-gradient(90deg, rgba(47, 224, 174, 0.16), rgba(255, 90, 43, 0.1) 58%, rgba(5, 20, 15, 0) 100%),
    var(--night);
  border-bottom: 1px solid var(--line);
  transition: max-height 220ms var(--ease), opacity 220ms var(--ease),
    border-color 220ms var(--ease);
}
.announce__inner {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 9px var(--gutter);
}
.announce__pulse {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 90, 43, 0.16);
}
.announce__text {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.announce__tag {
  flex: 0 0 auto;
  padding: 2px 8px;
  border: 1px solid rgba(123, 247, 208, 0.4);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}
.announce__ver {
  font-family: var(--font-mono);
  color: var(--amber);
  letter-spacing: 0.08em;
}
.announce__link {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  border-bottom: 1px solid rgba(123, 247, 208, 0.4);
}
.announce__link:hover { text-decoration: none; border-bottom-color: var(--cyan); }

.navshell {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px var(--gutter) 12px;
  transition: padding 220ms var(--ease);
}
.navisland {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 8px 10px 8px 18px;
  border: 1px solid rgba(123, 247, 208, 0.16);
  border-radius: var(--radius-pill);
  background: rgba(10, 35, 28, 0.55);
  backdrop-filter: blur(14px) saturate(130%);
  -webkit-backdrop-filter: blur(14px) saturate(130%);
  box-shadow: 0 24px 48px -34px #000;
  transition: background-color 220ms var(--ease), border-color 220ms var(--ease),
    border-radius 220ms var(--ease);
}

/* 吸顶收窄状态：由 JS 写入 data-condensed */
.site-header[data-condensed] .announce {
  max-height: 0;
  opacity: 0;
  border-bottom-color: transparent;
}
.site-header[data-condensed] .navshell { padding-top: 10px; padding-bottom: 10px; }
.site-header[data-condensed] .navisland {
  background: rgba(6, 24, 19, 0.86);
  border-color: rgba(123, 247, 208, 0.26);
  box-shadow: 0 26px 54px -30px #000;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--cyan);
  color: #04140F;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.brand__text { display: flex; flex-direction: column; line-height: 1.05; }
.brand__name {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.06em;
}
.brand__sub {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.28em;
  color: var(--muted);
}

.navpanel {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1 1 auto;
  min-width: 0;
}
.navlist {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0 auto;
  list-style: none;
}
.navlist a {
  position: relative;
  display: block;
  padding: 9px 14px;
  border-radius: var(--radius-pill);
  color: var(--muted);
  font-size: 14.5px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color var(--speed) var(--ease), background-color var(--speed) var(--ease);
}
.navlist a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 5px;
  width: 0;
  height: 1px;
  background: var(--cyan);
  transform: translateX(-50%);
  transition: width var(--speed) var(--ease);
}
.navlist a:hover {
  color: var(--text);
  text-decoration: none;
}
.navlist a:hover::after { width: calc(100% - 28px); }
.navlist a[aria-current="page"] {
  background: var(--cyan);
  color: #04140F;
  font-weight: 700;
}
.navlist a[aria-current="page"]::after { width: 0; }
.navcta { flex: 0 0 auto; }

.navtoggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(28, 70, 56, 0.42);
  font-size: 13px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: border-color var(--speed) var(--ease), color var(--speed) var(--ease);
}
.navtoggle:hover { border-color: var(--cyan); color: var(--cyan); }
.navtoggle__bars {
  position: relative;
  width: 16px;
  height: 10px;
}
.navtoggle__bars::before,
.navtoggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
  transition: transform var(--speed) var(--ease);
}
.navtoggle__bars::before { top: 0; }
.navtoggle__bars::after { bottom: 0; }
.navtoggle[aria-expanded="true"] .navtoggle__bars::before { transform: translateY(4px) rotate(45deg); }
.navtoggle[aria-expanded="true"] .navtoggle__bars::after { transform: translateY(-4px) rotate(-45deg); }

.scrollbar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: rgba(58, 92, 81, 0.45);
  overflow: hidden;
}
.scrollbar__fill {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan-deep), var(--cyan) 62%, var(--amber));
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 120ms linear;
}

/* 8. Footer -------------------------------------------------------------- */
.site-footer {
  position: relative;
  margin-top: 88px;
  background: var(--night-2);
  border-top: 1px solid rgba(123, 247, 208, 0.45);
  color: var(--muted);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.7fr repeat(4, minmax(0, 1fr));
  gap: 34px 28px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 58px var(--gutter) 36px;
}
.footer__brand { max-width: 340px; }
.brand--footer { margin-bottom: 16px; }
.footer__pitch { font-size: 14px; line-height: 1.8; }
.footer__note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}
.footer__title {
  margin-bottom: 14px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--text);
}
.footer__list { display: grid; gap: 9px; list-style: none; }
.footer__list a {
  color: var(--muted);
  font-size: 14px;
  transition: color var(--speed) var(--ease);
}
.footer__list a:hover { color: var(--cyan); }

.footer__contact {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px 28px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 26px var(--gutter);
  border-top: 1px solid var(--line);
}
.footer__contact-item--wide { grid-column: 1 / -1; }
.footer__label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}
.footer__value {
  margin: 0;
  color: var(--text);
  font-size: 14.5px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}
.footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px var(--gutter) 42px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
}
.footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-left: auto;
  list-style: none;
}
.footer__legal-links a { color: var(--muted); }
.footer__legal-links a:hover { color: var(--cyan); }

/* 9. Bento 栅格与卡片 ----------------------------------------------------- */
.bento {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 20px;
}
.bento__cell { grid-column: span 4; min-width: 0; }
.bento__cell--focus { grid-column: span 6; }
.bento__cell--wide { grid-column: span 8; }
.bento__cell--full { grid-column: span 12; }

.card {
  position: relative;
  height: 100%;
  padding: 22px;
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 0 0 1px var(--line);
  transition: box-shadow var(--speed) var(--ease), transform var(--speed) var(--ease);
}
.card:hover {
  box-shadow: 0 0 0 2px var(--cyan);
  transform: translateY(-2px);
}
.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.card__title { font-size: 17px; font-weight: 700; }
.card__body { font-size: 15px; color: var(--muted); }
.card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

/* 10. 数据组件 ----------------------------------------------------------- */
.stat { display: grid; gap: 4px; }
.stat__num {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.stat--hot .stat__num { color: var(--orange); }
.stat__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.tag--cyan { border-color: rgba(123, 247, 208, 0.45); color: var(--cyan); }
.tag--amber { border-color: rgba(255, 176, 32, 0.45); color: var(--amber); }
.tag--orange { border-color: rgba(255, 90, 43, 0.5); color: var(--orange); }

/* 11. 面包屑与正文 ------------------------------------------------------- */
.crumbs { font-size: 12.5px; }
.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}
.crumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--line);
}
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--cyan); }
.crumbs [aria-current="page"] { color: var(--text); }

.prose { max-width: 74ch; }
.prose h2 { margin-top: 1.6em; }
.prose h3 { margin-top: 1.4em; }
.prose ul, .prose ol { margin: 0 0 1.2em 1.2em; }
.prose li { margin-bottom: 0.5em; }
.prose blockquote {
  margin: 1.4em 0;
  padding: 4px 0 4px 18px;
  border-left: 3px solid var(--cyan);
  color: var(--muted);
}

/* 12. 图片容器（页面阶段放占位图） -------------------------------------- */
.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(28, 70, 56, 0.55), rgba(10, 35, 28, 0.9)),
    var(--panel);
}
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x5 { aspect-ratio: 4 / 5; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--21x9 { aspect-ratio: 21 / 9; }
.media__tag {
  position: absolute;
  left: 12px;
  top: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: rgba(5, 20, 15, 0.72);
  border: 1px solid rgba(123, 247, 208, 0.4);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px 14px 12px;
  background: linear-gradient(180deg, rgba(5, 20, 15, 0), rgba(5, 20, 15, 0.86));
  font-size: 13px;
  color: var(--text);
}

/* 13. 折叠与提示 --------------------------------------------------------- */
.fold__trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  cursor: pointer;
}
.fold__trigger::after {
  content: "+";
  font-size: 14px;
  line-height: 1;
}
.fold[data-open] .fold__trigger::after { content: "–"; }
.fold__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 220ms var(--ease);
}
.fold[data-open] .fold__panel { grid-template-rows: 1fr; }
.fold__inner { overflow: hidden; min-height: 0; }

.tip { position: relative; display: inline-flex; }
.tip__bubble {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  z-index: 5;
  width: max-content;
  max-width: 260px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #04120E;
  color: var(--text);
  font-size: 12px;
  line-height: 1.6;
  opacity: 0;
  transform: translate(-50%, 4px);
  pointer-events: none;
  transition: opacity var(--speed) var(--ease), transform var(--speed) var(--ease);
}
.tip:hover .tip__bubble,
.tip:focus-within .tip__bubble {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* 14. 显现动效 ----------------------------------------------------------- */
.has-js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 220ms var(--ease), transform 220ms var(--ease);
}
.has-js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* 15. 响应式：平板 ------------------------------------------------------- */
@media (max-width: 1080px) {
  .navshell { padding-left: 18px; padding-right: 18px; }
  .navlist a { padding: 9px 10px; font-size: 14px; }
  .navisland { gap: 12px; padding-left: 14px; }
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__brand { grid-column: 1 / -1; max-width: 520px; }
  .footer__contact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* 16. 响应式：移动端（导航折叠） ---------------------------------------- */
@media (max-width: 900px) {
  body { font-size: 16px; }
  .section { padding: 52px 0; }
  .announce__inner { padding-left: 14px; padding-right: 14px; }
  .announce__text { gap: 8px; }
  .navshell { padding: 10px 14px; }
  .navisland {
    flex-wrap: wrap;
    gap: 10px;
    padding: 8px 10px 8px 14px;
    border-radius: 22px;
  }
  .navtoggle { display: inline-flex; }
  .navpanel {
    display: none;
    flex: 1 1 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    margin-top: 10px;
    padding-top: 12px;
    border-top: 1px solid var(--line);
  }
  .navpanel[data-open] { display: flex; }
  .navlist {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin: 0;
  }
  .navlist a {
    padding: 12px 14px;
    border-radius: 12px;
    background: rgba(18, 51, 41, 0.72);
    font-size: 16px;
  }
  .navlist a::after { display: none; }
  .navlist a[aria-current="page"] { background: var(--cyan); }
  .navcta {
    width: 100%;
    margin-top: 4px;
  }
  .bento { gap: 16px; }
  .bento__cell,
  .bento__cell--focus,
  .bento__cell--wide { grid-column: span 6; }
  .bento__cell--full { grid-column: span 12; }
  .footer__grid { padding-top: 44px; }
  .footer__legal-links { margin-left: 0; }
}

@media (max-width: 620px) {
  :root { --gutter: 18px; }
  .bento__cell,
  .bento__cell--focus,
  .bento__cell--wide,
  .bento__cell--full { grid-column: span 12; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__contact { grid-template-columns: 1fr; }
  .footer__contact-item--wide { grid-column: auto; }
  .footer__brand { grid-column: auto; }
  .announce__pulse { display: none; }
  .card:hover { transform: none; }
}

/* 17. 降低动效 ----------------------------------------------------------- */
@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;
  }
  .has-js [data-reveal] { opacity: 1; transform: none; }
  .card:hover { transform: none; }
}