/* ==========================================================================
   浩瀚体育投注 — 共享样式 /assets/site.css
   01 变量  02 重置  03 中文排版  04 容器与网格  05 通用组件
   06 头部  07 页脚  08 响应式  09 动效与无障碍
   ========================================================================== */

/* 01 变量 ---------------------------------------------------------------- */
:root {
  --ink: #07120F;
  --ink-2: #0C211B;
  --layer: #12362C;
  --line: #2A5748;
  --lime: #C8FF4D;
  --orange: #FF6B2C;
  --paper: #F1F5F2;
  --mute: #93A49D;
  --cyan: #4FD8C0;
  --night: #040A08;

  --font-head: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: var(--font-head);
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --maxw: 1280px;
  --gutter: clamp(16px, 4vw, 40px);
  --grid-gap: clamp(16px, 2vw, 24px);
  --header-h: 110px;
  --measure: 36em;
  --radius: 2px;

  --fs-xs: 12px;
  --fs-sm: 14px;
  --fs-base: 17px;
  --fs-lg: clamp(20px, 2.2vw, 24px);
  --fs-xl: clamp(24px, 3.4vw, 32px);
  --fs-2xl: clamp(30px, 4.6vw, 48px);
  --fs-3xl: clamp(36px, 6vw, 72px);
  --fs-4xl: clamp(56px, 12vw, 112px);
}

/* 02 重置 ---------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  background-color: var(--night);
}

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, li, figure, blockquote, dl, dd { margin: 0; }

ul, ol { padding: 0; list-style: none; }

img, picture, video, canvas, svg { display: block; max-width: 100%; }

button, input, select, textarea { font: inherit; color: inherit; }

button { cursor: pointer; }

a { color: inherit; }

table { width: 100%; border-collapse: collapse; }

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

::selection { background: var(--lime); color: var(--night); }

/* 03 中文排版 ------------------------------------------------------------ */
body {
  position: relative;
  min-height: 100vh;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(0deg, rgba(241, 245, 242, .035) 0 1px, transparent 1px 4px);
  opacity: .45;
}

body.is-nav-open { overflow: hidden; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--paper);
  text-wrap: balance;
}

h1 { font-size: var(--fs-2xl); }
h2 { font-size: var(--fs-xl); }
h3 { font-size: var(--fs-lg); }
h4 { font-size: var(--fs-md); }

p { text-wrap: pretty; }

p + p { margin-top: 1.2em; }

.mono {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: .02em;
  font-feature-settings: "tnum" 1, "zero" 1;
}

.display {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: var(--fs-4xl);
  line-height: .94;
  letter-spacing: -.04em;
  color: var(--paper);
}

.display--skew {
  transform: skewX(-4deg);
  transform-origin: left bottom;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--mute);
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  flex: none;
  background: var(--lime);
}

.eyebrow__num {
  color: var(--lime);
  letter-spacing: .08em;
}

.section-title {
  font-size: var(--fs-xl);
  margin-top: 14px;
}

.lede {
  font-size: var(--fs-md);
  line-height: 1.8;
  color: var(--mute);
  max-width: var(--measure);
}

.measure { max-width: var(--measure); }

.prose { max-width: var(--measure); }

.prose > * + * { margin-top: 1.2em; }

.prose h2,
.prose h3 { margin-top: 2em; }

.prose ul,
.prose ol {
  padding-left: 1.25em;
  list-style: disc;
}

.prose ol { list-style: decimal; }

.prose li + li { margin-top: .5em; }

.prose a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose strong { color: var(--paper); font-weight: 700; }

.prose code {
  font-family: var(--font-mono);
  font-size: .92em;
  color: var(--lime);
  background: rgba(18, 54, 44, .8);
  padding: .1em .4em;
  border-radius: var(--radius);
}

/* 04 容器与网格 ---------------------------------------------------------- */
#main-content {
  position: relative;
  z-index: 1;
  display: block;
  padding-top: var(--header-h);
}

.hero--underlap { margin-top: calc(-1 * var(--header-h)); }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow { max-width: 880px; }
.container--wide { max-width: 1440px; }

.grid {
  display: grid;
  gap: var(--grid-gap);
}

.grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

.col-3  { grid-column: span 3; }
.col-4  { grid-column: span 4; }
.col-5  { grid-column: span 5; }
.col-6  { grid-column: span 6; }
.col-7  { grid-column: span 7; }
.col-8  { grid-column: span 8; }
.col-12 { grid-column: span 12; }

.section {
  position: relative;
  padding-block: clamp(56px, 8vw, 112px);
}

.section--alt { background-color: var(--ink-2); }

.section-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.rule {
  height: 1px;
  border: 0;
  background: var(--line);
}

/* 05 通用组件 ------------------------------------------------------------ */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 10px 18px;
  background: var(--lime);
  color: var(--night);
  font-weight: 700;
  font-size: var(--fs-sm);
  text-decoration: none;
  border-radius: var(--radius);
  transform: translateY(-180%);
  transition: transform .2s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible { transform: translateY(0); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: background-color .18s var(--ease),
              border-color .18s var(--ease),
              color .18s var(--ease);
}

.btn--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--night);
}

.btn--primary:hover { background: #ff8352; border-color: #ff8352; }

.btn--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--paper);
}

.btn--ghost:hover {
  background: rgba(200, 255, 77, .08);
  border-color: var(--lime);
  color: var(--lime);
}

.btn--sm { min-height: 38px; padding: 0 14px; font-size: 13px; }
.btn--block { width: 100%; }

.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 3px 9px;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .04em;
  line-height: 1.5;
  background: rgba(4, 10, 8, .35);
}

.status::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: currentColor;
}

.status--done   { color: var(--lime); }
.status--queued { color: var(--cyan); }
.status--watch  { color: var(--mute); }
.status--alert  { color: var(--orange); }

.data-strip {
  display: flex;
  align-items: stretch;
  overflow-x: auto;
  border-block: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .04em;
  color: var(--mute);
  scrollbar-width: thin;
}

.data-strip__item {
  padding: 10px 18px;
  white-space: nowrap;
  border-right: 1px solid var(--line);
}

.data-strip__item:last-child { border-right: 0; }

.data-strip__item b {
  font-weight: 500;
  color: var(--lime);
}

.panel {
  background: var(--layer);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(18px, 2.4vw, 28px);
}

.panel--glass {
  background: rgba(12, 33, 27, .62);
  border: 1px solid rgba(42, 87, 72, .9);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .04em;
  color: var(--mute);
}

.crumbs a {
  color: var(--mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.crumbs a:hover { color: var(--lime); border-bottom-color: var(--lime); }

.crumbs__sep { color: var(--line); }

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

.media {
  position: relative;
  overflow: hidden;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.media img,
.media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--16x9 { aspect-ratio: 16 / 9; }
.media--21x9 { aspect-ratio: 21 / 9; }
.media--3x2  { aspect-ratio: 3 / 2; }
.media--4x5  { aspect-ratio: 4 / 5; }
.media--1x1  { aspect-ratio: 1 / 1; }

.media--placeholder {
  background-image:
    radial-gradient(circle at 28% 18%, rgba(79, 216, 192, .16), transparent 58%),
    radial-gradient(circle at 82% 92%, rgba(200, 255, 77, .12), transparent 52%),
    repeating-linear-gradient(118deg, rgba(241, 245, 242, .05) 0 1px, transparent 1px 16px);
}

.media__caption {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  padding: 28px 14px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--paper);
  background: linear-gradient(180deg, transparent, rgba(4, 10, 8, .88));
}

/* 06 头部 ---------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  color: var(--paper);
  border-bottom: 1px solid transparent;
  transition: background-color .24s var(--ease), border-color .24s var(--ease);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(4, 10, 8, .78), rgba(4, 10, 8, .18) 72%, transparent);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  transition: opacity .24s var(--ease);
}

.site-header > * { position: relative; z-index: 1; }

.site-header[data-scrolled="true"] {
  background: var(--ink);
  border-bottom-color: var(--line);
}

.site-header[data-scrolled="true"]::before { opacity: 0; }

.site-header__progress {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  z-index: 2;
  height: 2px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--lime), var(--cyan));
  pointer-events: none;
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 24px);
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
  text-decoration: none;
  color: inherit;
}

.brand__mark {
  width: 22px;
  height: 26px;
  flex: none;
  position: relative;
  background: var(--lime);
  clip-path: polygon(0 0, 100% 10%, 100% 100%, 0 90%);
  transform: skewX(-8deg);
}

.brand__mark::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 6px;
  background: var(--orange);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand__name {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: -.01em;
  color: var(--paper);
  white-space: nowrap;
}

.brand__tagline {
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--lime);
  white-space: nowrap;
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}

.site-header[data-scrolled="true"] .brand__tagline {
  opacity: 0;
  transform: translateY(-4px);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.4vw, 20px);
  margin-inline-start: auto;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(2px, .8vw, 10px);
}

.nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 10px;
  color: var(--paper);
  font-size: var(--fs-sm);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .16s var(--ease),
              border-color .16s var(--ease),
              background-color .16s var(--ease);
}

.nav__link:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
  background: rgba(200, 255, 77, .06);
}

.nav__link[aria-current="page"] {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.nav__index {
  font-size: 10px;
  letter-spacing: .08em;
  color: var(--mute);
}

.nav__link:hover .nav__index,
.nav__link[aria-current="page"] .nav__index { color: var(--lime); }

.nav__label { white-space: nowrap; }

.nav__aside { display: none; }

.nav__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--mute);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.node-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(12, 33, 27, .6);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .04em;
  text-decoration: none;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.node-pill:hover { border-color: var(--lime); }

.node-pill__dot {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--lime);
  animation: vp-pulse 2.4s var(--ease) infinite;
}

.node-pill__k { color: var(--paper); white-space: nowrap; }
.node-pill__v { color: var(--mute); white-space: nowrap; }

@keyframes vp-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(200, 255, 77, .38); }
  50%      { box-shadow: 0 0 0 5px rgba(200, 255, 77, 0); }
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 44px;
  min-height: 44px;
  padding: 0 12px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.nav-toggle:hover { border-color: var(--lime); color: var(--lime); }

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 16px;
}

.nav-toggle__bars span {
  display: block;
  height: 2px;
  width: 100%;
  background: currentColor;
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}

.site-header[data-open="true"] .nav-toggle {
  border-color: var(--lime);
  color: var(--lime);
}

.site-header[data-open="true"] .nav-toggle__bars span:first-child {
  transform: translateY(3px) rotate(45deg);
}

.site-header[data-open="true"] .nav-toggle__bars span:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

.site-header__ticker {
  max-height: 60px;
  overflow: hidden;
  border-top: 1px solid rgba(42, 87, 72, .55);
  background: rgba(4, 10, 8, .38);
  transition: max-height .24s var(--ease), opacity .24s var(--ease);
}

.site-header[data-scrolled="true"] .site-header__ticker {
  max-height: 0;
  opacity: 0;
  border-top-color: transparent;
}

.ticker {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 34px);
  padding-block: 8px;
  overflow-x: auto;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mute);
  scrollbar-width: none;
}

.ticker::-webkit-scrollbar { display: none; }

.ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.ticker__item::before {
  content: "";
  width: 4px;
  height: 4px;
  flex: none;
  background: var(--lime);
}

/* 07 页脚 ---------------------------------------------------------------- */
.site-footer {
  position: relative;
  z-index: 1;
  background: var(--night);
  color: var(--mute);
  border-top: 1px solid var(--line);
}

.site-footer__edge {
  height: 2px;
  background: linear-gradient(90deg, var(--lime), var(--cyan) 42%, rgba(79, 216, 192, 0));
}

.site-footer__inner {
  padding-block: clamp(40px, 6vw, 68px) clamp(24px, 3vw, 36px);
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(240px, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}

.footer__name {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -.01em;
  color: var(--paper);
}

.footer__tag {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--lime);
}

.footer__note {
  margin-top: 14px;
  max-width: 26em;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mute);
}

.footer__meta {
  margin-top: 14px;
  font-size: 11px;
  letter-spacing: .05em;
  color: var(--line);
  color: rgba(147, 164, 157, .78);
}

.footer__title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--paper);
}

.footer__title::before {
  content: "";
  width: 14px;
  height: 1px;
  flex: none;
  background: var(--lime);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: var(--fs-sm);
  line-height: 1.65;
}

.footer__list a {
  color: var(--mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.footer__list a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.footer__list--plain li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--paper);
}

.footer__k {
  font-size: 10px;
  letter-spacing: .14em;
  color: rgba(147, 164, 157, .7);
}

.footer__v {
  color: var(--paper);
  overflow-wrap: anywhere;
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: clamp(32px, 5vw, 56px);
  padding-top: 20px;
  border-top: 1px solid rgba(42, 87, 72, .7);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--mute);
}

.footer__icp { color: var(--mute); }
.footer__icp .mono { color: var(--paper); }

.footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer__legal-links a {
  color: var(--mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.footer__legal-links a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.footer__disclaimer {
  margin-top: 14px;
  max-width: 62em;
  font-size: 12px;
  line-height: 1.8;
  color: rgba(147, 164, 157, .82);
}

/* 08 响应式 -------------------------------------------------------------- */
@media (max-width: 1240px) {
  .site-header__actions .node-pill { display: none; }
}

@media (max-width: 1120px) {
  .site-header__cta { display: none; }
  .nav__index { display: none; }
  .nav__link { padding: 8px 8px; }
}

@media (max-width: 980px) {
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; --fs-base: 16px; }

  .site-header__inner { min-height: 64px; }
  .site-header__ticker { display: none; }
  .site-header__actions { margin-inline-start: auto; gap: 8px; }
  .nav-toggle { display: inline-flex; }

  .nav {
    position: absolute;
    inset-block-start: 100%;
    inset-inline: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 8px var(--gutter) 28px;
    max-height: calc(100vh - var(--header-h));
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    background: var(--night);
    border-top: 1px solid var(--line);
    box-shadow: 0 24px 48px rgba(0, 0, 0, .55);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity .2s var(--ease),
                transform .2s var(--ease),
                visibility .2s var(--ease);
  }

  .site-header[data-open="true"] .nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav__item { border-bottom: 1px solid rgba(42, 87, 72, .55); }
  .nav__item:last-child { border-bottom: 0; }

  .nav__link {
    width: 100%;
    align-items: baseline;
    justify-content: flex-start;
    padding: 14px 0;
    font-size: 18px;
    border-bottom: 0;
  }

  .nav__link:hover { background: transparent; }

  .nav__index { display: inline; min-width: 2.4em; font-size: 11px; }

  .nav__aside {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
  }

  .btn { min-height: 46px; }

  .grid--12 > [class^="col-"] { grid-column: span 12; }

  .display { letter-spacing: -.03em; }
}

@media (max-width: 620px) {
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
  .footer__legal { flex-direction: column; align-items: flex-start; }
  .brand__tagline { font-size: 9px; letter-spacing: .12em; }
  .brand__name { font-size: 16px; }
  .nav-toggle { padding: 0 10px; }
}

/* 09 动效与无障碍 -------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .48s var(--ease), transform .48s var(--ease);
  will-change: opacity, transform;
}

.reveal.is-in {
  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;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }

  .node-pill__dot { animation: none; }

  .site-header[data-scrolled="true"] .brand__tagline { opacity: 0; }

  .nav {
    transform: none !important;
    transition: opacity .001ms linear, visibility .001ms linear !important;
  }
}