/* =========================================================
   /assets/site.css — 九博娱乐 V4 共享样式
   1 重置  2 变量  3 基础排版  4 容器与网格  5 通用组件
   6 页头  7 侧栏与坞栏  8 页脚  9 响应式  10 动效降级
   ========================================================= */

/* ---------- 1. 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; }
h1, h2, h3, h4, h5, p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

/* ---------- 2. 变量 ---------- */
:root {
  --deep: #0B1030;
  --night: #131A45;
  --neon: #7B4DFF;
  --neon-soft: #A78BFF;
  --cyan: #29E3D6;
  --coral: #FF6B57;
  --star: #F4F7FF;
  --mist: #A9B4D6;
  --line: #2A2352;
  --grad: linear-gradient(120deg, #29E3D6, #7B4DFF);
  --shell: 1280px;
  --gutter: 24px;
  --gap: 24px;
  --r-lg: 32px;
  --r-md: 26px;
  --r-sm: 18px;
  --r-pill: 999px;
  --shadow-card: 0 24px 60px rgba(11, 16, 48, .6);
  --ease: cubic-bezier(.22, 1, .36, 1);
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ---------- 3. 基础排版与环境层 ---------- */
body {
  min-height: 100vh;
  background: var(--deep);
  color: var(--star);
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.8;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: -18% -12%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(46% 42% at 12% 6%, rgba(123, 77, 255, .34), transparent 70%),
    radial-gradient(42% 38% at 88% 20%, rgba(41, 227, 214, .18), transparent 72%),
    radial-gradient(52% 44% at 58% 102%, rgba(255, 107, 87, .13), transparent 76%);
  animation: nebula 38s ease-in-out infinite alternate;
}
h1 {
  font-size: clamp(48px, 9vw, 128px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -.02em;
  text-shadow: 0 0 22px rgba(123, 77, 255, .55), 0 0 34px rgba(41, 227, 214, .26);
}
h2 { font-size: clamp(28px, 4vw, 46px); font-weight: 900; line-height: 1.18; letter-spacing: -.01em; }
h3 { font-size: 22px; font-weight: 700; line-height: 1.4; }
h4 { font-size: 18px; font-weight: 700; line-height: 1.45; }
strong { font-weight: 700; color: var(--star); }
::selection { background: rgba(41, 227, 214, .3); color: var(--star); }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 8px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -72px;
  z-index: 200;
  padding: 11px 20px;
  border-radius: var(--r-pill);
  background: var(--cyan);
  color: #05141a;
  font-size: 14px;
  font-weight: 700;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; }

.prose { max-width: 640px; }
.prose p { margin-bottom: 1.2em; color: var(--mist); }
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--star); }
.meta { font-size: 13px; letter-spacing: .02em; color: var(--mist); }
.muted { color: var(--mist); }
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--neon-soft);
}
.sec-num {
  display: block;
  font-size: clamp(56px, 10vw, 96px);
  font-weight: 900;
  line-height: .86;
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
  color: rgba(167, 139, 255, .2);
  -webkit-text-stroke: 1.5px rgba(167, 139, 255, .55);
  text-shadow: 0 0 26px rgba(123, 77, 255, .35);
}
.num { font-variant-numeric: tabular-nums; font-weight: 900; }

/* ---------- 4. 容器、区块与网格 ---------- */
.shell {
  width: min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline: auto;
}
.section { position: relative; padding: clamp(56px, 8vw, 120px) 0; }
.section--tight { padding: clamp(36px, 5vw, 72px) 0; }

.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--gap); }
.grid > * { grid-column: span 12; min-width: 0; }
@media (min-width: 720px) {
  .c-3 { grid-column: span 3; }
  .c-4 { grid-column: span 4; }
  .c-5 { grid-column: span 5; }
  .c-6 { grid-column: span 6; }
  .c-7 { grid-column: span 7; }
  .c-8 { grid-column: span 8; }
  .c-9 { grid-column: span 9; }
  .c-12 { grid-column: span 12; }
}

/* ---------- 5. 通用组件 ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
  overflow: hidden;
  transition: transform .24s var(--ease), box-shadow .24s var(--ease),
              background-color .2s linear, color .2s linear, border-color .2s linear;
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(130px 70px at var(--mx, 50%) var(--my, 50%), rgba(244, 247, 255, .3), transparent 70%);
  opacity: 0;
  transition: opacity .16s linear;
  pointer-events: none;
}
.btn:hover::before { opacity: 1; }
.btn--primary {
  background: linear-gradient(120deg, #7B4DFF, #29E3D6);
  color: #050A1E;
  box-shadow: 0 12px 34px rgba(123, 77, 255, .42);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 18px 44px rgba(41, 227, 214, .38); }
.btn--ghost {
  background: rgba(19, 26, 69, .62);
  border-color: rgba(167, 139, 255, .5);
  color: var(--star);
}
.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); background: rgba(41, 227, 214, .1); }
.btn--coral { background: var(--coral); color: #1B0A06; box-shadow: 0 12px 30px rgba(255, 107, 87, .3); }
.btn--coral:hover { transform: translateY(-2px); }
.btn--sm { padding: 9px 18px; font-size: 13.5px; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border: 1px solid rgba(167, 139, 255, .42);
  border-radius: var(--r-pill);
  background: rgba(19, 26, 69, .62);
  color: var(--neon-soft);
  font-size: 13px;
  line-height: 1.5;
}
.chip--cyan { border-color: rgba(41, 227, 214, .45); color: var(--cyan); }
.chip--coral { border-color: rgba(255, 107, 87, .5); color: var(--coral); }

.status-dot {
  display: inline-block;
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(41, 227, 214, .16);
  animation: pulse 2.6s ease-in-out infinite;
}

.card {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(19, 26, 69, .94), rgba(11, 16, 48, .94));
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(240px 170px at var(--mx, 50%) var(--my, 0%), rgba(41, 227, 214, .22), transparent 70%);
  opacity: 0;
  transition: opacity .22s linear;
  pointer-events: none;
}
.card:hover::after { opacity: 1; }
.card--float { transform: translateY(-6px); }
.card--status { display: flex; flex-wrap: wrap; gap: 22px 34px; }
.card__k { display: block; font-size: 12px; letter-spacing: .16em; color: var(--mist); }
.card__v { display: block; font-size: 24px; font-weight: 900; font-variant-numeric: tabular-nums; color: var(--star); }

.media {
  position: relative;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background:
    linear-gradient(140deg, rgba(19, 26, 69, .9), rgba(11, 16, 48, .95) 58%, rgba(123, 77, 255, .35));
  box-shadow: var(--shadow-card);
}
.media--wide { aspect-ratio: 21 / 9; }
.media--square { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 4 / 5; }
.media > img { width: 100%; height: 100%; object-fit: cover; }
.media__glow {
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: -32%;
  height: 62%;
  background: var(--grad);
  filter: blur(52px);
  opacity: .34;
  pointer-events: none;
}
.media__tag {
  position: absolute;
  left: 16px;
  bottom: 16px;
}

.section-nav {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(19, 26, 69, .72);
  scrollbar-width: none;
}
.section-nav::-webkit-scrollbar { display: none; }
.section-nav a {
  flex: none;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: 13.5px;
  color: var(--mist);
  white-space: nowrap;
  transition: color .2s linear, background-color .2s linear, border-color .2s linear;
}
.section-nav a:hover { color: var(--star); background: rgba(123, 77, 255, .18); }
.section-nav a[aria-current] {
  color: var(--cyan);
  background: rgba(41, 227, 214, .12);
  border-color: rgba(41, 227, 214, .5);
}

.crumbs { font-size: 13px; color: var(--mist); }
.crumbs ul { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.crumbs li { display: inline-flex; align-items: center; gap: 8px; }
.crumbs li + li::before { content: "—"; color: rgba(167, 139, 255, .55); }
.crumbs a { color: var(--neon-soft); }
.crumbs a:hover { color: var(--cyan); }

.accordion { border-top: 1px solid var(--line); }
.accordion__item { border-bottom: 1px solid var(--line); }
.accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 20px 4px;
  text-align: left;
  font-size: 18px;
  font-weight: 700;
  color: var(--star);
}
.accordion__trigger::after {
  content: "＋";
  flex: none;
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}
.accordion__trigger[aria-expanded="true"] { color: var(--cyan); }
.accordion__trigger[aria-expanded="true"]::after { content: "－"; }
.accordion__panel { display: none; padding: 0 4px 22px; color: var(--mist); }
.accordion__item[data-open] .accordion__panel { display: block; animation: fadeUp .3s var(--ease); }

.reveal { opacity: 0; transform: translateY(16px); }
.reveal.is-in {
  opacity: 1;
  transform: none;
  transition: opacity .34s var(--ease), transform .34s var(--ease);
}

/* ---------- 6. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: linear-gradient(180deg, rgba(11, 16, 48, .97), rgba(11, 16, 48, .88));
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.topbar {
  border-bottom: 1px solid rgba(42, 35, 82, .6);
  background: linear-gradient(90deg, rgba(19, 26, 69, .9), rgba(11, 16, 48, .9));
}
.topbar__inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 58px;
  padding: 8px 0;
}
.topbar__slogan {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 13px;
  color: var(--mist);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: opacity .24s var(--ease);
}
.topbar__service {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: none;
  padding: 6px 14px;
  border: 1px solid rgba(41, 227, 214, .35);
  border-radius: var(--r-pill);
  background: rgba(41, 227, 214, .1);
  font-size: 12.5px;
  color: var(--star);
  white-space: nowrap;
}

.brand { display: inline-flex; align-items: center; gap: 12px; flex: none; }
.brand__mark {
  position: relative;
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: var(--grad);
  box-shadow: 0 0 22px rgba(123, 77, 255, .5);
}
.brand__mark::after {
  content: "";
  position: absolute;
  inset: 9px;
  border-radius: 50%;
  background: var(--deep);
  box-shadow: inset 0 0 0 2px rgba(41, 227, 214, .85);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name { font-size: 18px; font-weight: 900; letter-spacing: .04em; color: var(--star); }
.brand__ver { font-size: 11px; letter-spacing: .18em; color: var(--neon-soft); }

.navbar { position: relative; }
.navbar__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 66px;
  padding: 9px 0;
  transition: min-height .24s var(--ease);
}
.nav { flex: 1 1 auto; min-width: 0; }
.nav__list { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.nav__link {
  display: inline-block;
  padding: 9px 15px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: 15px;
  color: var(--mist);
  transition: color .2s linear, background-color .2s linear, border-color .2s linear;
}
.nav__link:hover { color: var(--star); background: rgba(123, 77, 255, .18); border-color: rgba(167, 139, 255, .42); }
.nav__link[aria-current="page"] {
  color: var(--cyan);
  background: rgba(41, 227, 214, .12);
  border-color: rgba(41, 227, 214, .5);
}
.nav__cta { flex: none; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  flex: none;
  padding: 10px 16px;
  border: 1px solid rgba(167, 139, 255, .45);
  border-radius: var(--r-pill);
  background: rgba(19, 26, 69, .7);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--star);
}
.nav-toggle__bars { display: inline-flex; flex-direction: column; gap: 4px; width: 18px; }
.nav-toggle__bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
  transition: transform .24s var(--ease), opacity .2s linear;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: rgba(42, 35, 82, .55);
}
.progress__bar {
  display: block;
  height: 100%;
  width: var(--progress, 0%);
  background: linear-gradient(90deg, #7B4DFF, #29E3D6 62%, #FF6B57);
  box-shadow: 0 0 14px rgba(41, 227, 214, .55);
  transition: width .12s linear;
}

.site-header[data-scrolled] .topbar { display: none; }
.site-header[data-scrolled] .navbar__inner { min-height: 58px; padding: 6px 0; }

/* ---------- 7. 侧栏与移动坞栏 ---------- */
.rail {
  display: none;
  position: fixed;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 70;
  flex-direction: column;
  gap: 2px;
  padding: 12px 8px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(19, 26, 69, .74);
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 44px rgba(5, 8, 24, .5);
}
.rail__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: var(--r-pill);
  font-size: 12px;
  color: var(--mist);
  white-space: nowrap;
  transition: color .2s linear, background-color .2s linear;
}
.rail__link:hover { color: var(--star); background: rgba(123, 77, 255, .2); }
.rail__link[aria-current="page"] { color: var(--cyan); background: rgba(41, 227, 214, .12); }
.rail__dot {
  flex: none;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  opacity: .55;
}
.rail__link[aria-current="page"] .rail__dot { opacity: 1; box-shadow: 0 0 10px var(--cyan); }

.dock { display: none; }
.dock__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  opacity: .5;
}
.dock__link[aria-current="page"] .dock__dot { opacity: 1; box-shadow: 0 0 8px var(--cyan); }

/* ---------- 8. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(40px, 6vw, 88px);
  padding: clamp(48px, 6vw, 72px) 0 26px;
  border-top: 1px solid rgba(123, 77, 255, .45);
  background: linear-gradient(180deg, rgba(19, 26, 69, .72), var(--deep) 62%);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
.footer__brand { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.footer__note { max-width: 34em; font-size: 14px; color: var(--mist); }
.footer__status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 14px;
  border: 1px solid rgba(255, 107, 87, .45);
  border-radius: var(--r-pill);
  background: rgba(255, 107, 87, .1);
  font-size: 12.5px;
  color: var(--coral);
}
.footer__status .status-dot { background: var(--coral); box-shadow: 0 0 0 4px rgba(255, 107, 87, .16); }
.footer__title {
  margin-bottom: 14px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--neon-soft);
}
.footer__list { display: flex; flex-direction: column; gap: 10px; }
.footer__list--contact { gap: 16px; }
.footer__text { font-size: 14px; color: var(--mist); margin-bottom: 12px; }
.footer__link {
  font-size: 14.5px;
  color: var(--neon-soft);
  transition: color .2s linear;
}
.footer__link:hover { color: var(--cyan); }
.footer__link[aria-current="page"] { color: var(--cyan); }
.footer__link--strong { font-weight: 700; color: var(--star); }
.footer__link--strong:hover { color: var(--cyan); }
.footer__label {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mist);
}
.footer__value { font-size: 14.5px; color: var(--star); }
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: 100%;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(11, 16, 48, .8);
  transition: border-color .2s linear, background-color .2s linear;
}
.copy-btn:hover { border-color: rgba(41, 227, 214, .5); background: rgba(41, 227, 214, .08); }
.copy-btn[data-copied] { border-color: rgba(41, 227, 214, .75); }
.copy-btn__text {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--star);
  overflow-wrap: anywhere;
}
.copy-btn__hint { flex: none; font-size: 12px; color: var(--cyan); }
.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: clamp(36px, 5vw, 56px);
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.footer__legal { display: flex; flex-wrap: wrap; gap: 18px; }
.footer__copy { font-size: 13px; color: var(--mist); }
.footer__icp { color: var(--mist); }

/* ---------- 9. 响应式 ---------- */
@media (min-width: 860px) {
  .footer__inner { grid-template-columns: 1.5fr 1fr 1.1fr 1.4fr; gap: 32px; }
}
@media (min-width: 1380px) {
  .rail { display: flex; }
}
@media (max-width: 1040px) {
  .topbar__slogan { display: none; }
}
@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: absolute;
    top: calc(100% + 10px);
    left: var(--gutter);
    right: var(--gutter);
    display: none;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    background: rgba(11, 16, 48, .98);
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(16px);
  }
  .nav[data-open] { display: block; animation: navIn .28s var(--ease); }
  .nav__list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  .nav__link {
    display: block;
    padding: 12px 14px;
    border-radius: var(--r-sm);
    background: rgba(19, 26, 69, .82);
    border-color: rgba(42, 35, 82, .9);
    font-size: 15px;
  }
  .navbar__inner { gap: 10px; }
}
@media (max-width: 760px) {
  :root { --gutter: 18px; }
  body { padding-bottom: 92px; }
  .dock {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 12px;
    z-index: 90;
    padding: 6px;
    border: 1px solid var(--line);
    border-radius: var(--r-pill);
    background: rgba(19, 26, 69, .93);
    box-shadow: 0 18px 40px rgba(5, 8, 24, .62);
    backdrop-filter: blur(14px);
  }
  .dock__link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    padding: 9px 2px;
    border-radius: var(--r-pill);
    font-size: 11px;
    line-height: 1.3;
    color: var(--mist);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color .2s linear, background-color .2s linear;
  }
  .dock__link[aria-current="page"] { color: var(--cyan); background: rgba(41, 227, 214, .12); }
}
@media (max-width: 560px) {
  .nav__cta { padding: 8px 14px; font-size: 12.5px; }
  .topbar__service { font-size: 11.5px; padding: 5px 11px; }
  .brand__name { font-size: 16px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}

/* ---------- 10. 关键帧与动效降级 ---------- */
@keyframes nebula {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(2%, -1.6%, 0) scale(1.04); }
  100% { transform: translate3d(-2%, 1.8%, 0) scale(1.02); }
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(41, 227, 214, .16); }
  50% { box-shadow: 0 0 0 7px rgba(41, 227, 214, .06); }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}
@keyframes navIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  body::before { animation: none; }
  .reveal { opacity: 1; transform: none; }
  .btn:hover, .card--float { transform: none; }
}