/* 天机阁 · 原生关键帧完成中心显影与扩散，JS 只在暂停/恢复时校准时钟。 */
.home-intro {
  position: fixed; inset: 0; z-index: 10000; isolation: isolate;
  width: 100%; height: 100%; overflow: hidden; color-scheme: light;
  color: #2b263d; background: #fbfafe;
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
  opacity: 1;
}
.home-intro[hidden], .home-intro [hidden] { display: none !important; }
html[data-home-intro='open'], html[data-home-intro='open'] body { overflow: hidden !important; }
.home-intro * { box-sizing: border-box; }
.home-intro[data-motion='playing'] *, .home-intro[data-motion='playing'] ::before, .home-intro[data-motion='playing'] ::after { animation-play-state: running; }
.home-intro button { font: inherit; cursor: pointer; touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
.home-intro-atmosphere { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.home-intro-atmosphere::before {
  content: ''; position: absolute; inset: -20%;
  background: radial-gradient(ellipse at 50% 44%, #b896e045, transparent 42%), radial-gradient(ellipse at 20% 25%, #d2bdeb30, transparent 42%), radial-gradient(ellipse at 85% 75%, #ddcef138, transparent 40%);
  animation: intro-nebula 4.6s linear both paused;
}
.home-intro-atmosphere::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 22%, #fbfafe70 78%, #fbfafe 100%);
}
.home-intro-orbit {
  position: absolute; top: 46%; left: 50%; width: min(1120px, 90vw); aspect-ratio: 1; border-radius: 50%;
  border: 1px solid #bca0de24;
  background: radial-gradient(circle, transparent 62%, #b7a0d40b 70%, transparent 71%);
  box-shadow: 0 0 0 29px #bca0de03, 0 0 0 30px #bca0de0e, inset 0 0 90px #bb95e509;
  animation: intro-orbit 4.6s linear both paused;
}
.home-intro-orbit::before, .home-intro-orbit::after {
  content: ''; position: absolute; border-radius: 50%;
}
.home-intro-orbit::before { inset: 7%; border: 1px dashed #d6bfea13; }
.home-intro-orbit::after { top: 14.65%; left: 14.65%; width: 5px; height: 5px; background: #e7cdaa; box-shadow: 0 0 16px #e5baf8b3; }
.home-intro-aura {
  position: absolute; top: 46%; left: 50%; width: min(1150px, 130vw); aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, transparent 43%, #ac75e510 48%, #e2c9ff66 49.8%, #c297f326 50.4%, transparent 54%);
  animation: intro-aura 4.6s linear both paused;
}
.home-intro-stars {
  position: absolute; inset: 0;
  background: radial-gradient(circle at 12% 27%, #e1caff9c 0 1px, transparent 1.6px), radial-gradient(circle at 86% 22%, #d8bfe985 0 1px, transparent 1.7px), radial-gradient(circle at 74% 72%, #e1caff80 0 1px, transparent 1.7px), radial-gradient(circle at 23% 76%, #e1caff7a 0 1px, transparent 1.6px), radial-gradient(circle at 62% 14%, #e1caff85 0 .8px, transparent 1.5px), radial-gradient(circle at 38% 85%, #e1caff75 0 .8px, transparent 1.5px), radial-gradient(circle at 92% 56%, #e1caff60 0 .7px, transparent 1.4px), radial-gradient(circle at 8% 65%, #e1caff70 0 .7px, transparent 1.4px);
  animation: intro-stars 4.6s linear both paused;
}
.home-intro-grid { position: absolute; inset: 0; pointer-events: none; overflow: hidden; opacity: .55; }
.home-intro-grid::before, .home-intro-grid::after {
  content: ''; position: absolute; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, #c4a8df14 25%, #c4a8df0b 75%, transparent);
}
.home-intro-grid::before { top: 15%; }
.home-intro-grid::after { bottom: 15%; }
.home-intro-grid > i { position: absolute; top: 15%; bottom: 15%; width: 1px; background: #c4a8df0a; }
.home-intro-grid > i:nth-child(1) { left: 8%; }
.home-intro-grid > i:nth-child(2) { left: 25%; background: #c4a8df05; }
.home-intro-grid > i:nth-child(3) { right: 25%; background: #c4a8df05; }
.home-intro-grid > i:nth-child(4) { right: 8%; }
.home-intro-grid > span { position: absolute; left: 8%; top: 15%; width: 3px; height: 3px; margin-left: -1px; background: #d3b6e599; box-shadow: 0 0 9px #d1b0eb55; }
.home-intro-toolbar { position: absolute; top: max(28px, env(safe-area-inset-top)); left: 42px; right: 42px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.home-intro-edition { display: flex; align-items: center; gap: 13px; color: #736b83; font: 10px/1.5 Georgia, serif; letter-spacing: .25em; }
.home-intro-edition > i { width: 5px; height: 5px; transform: rotate(45deg); background: #7959bc; box-shadow: 0 0 12px #e1c49f33; }
.home-intro-edition > small { padding-left: 14px; border-left: 1px solid #d8c1ec24; font: 10px/1.5 'Noto Serif SC', 'Songti SC', serif; letter-spacing: .18em; color: #80768f; }
.home-intro-tools { display: flex; align-items: center; gap: 28px; }
.home-intro-tools button { display: inline-flex; align-items: center; gap: 9px; min-height: 44px; padding: 0; border: 0; color: #736b83; background: transparent; font-size: 11px; letter-spacing: .06em; }
.home-intro-tools button:hover { color: #6845ac; }
#homeIntroMotion::before { content: ''; width: 5px; height: 7px; border-left: 1px solid currentColor; border-right: 1px solid currentColor; }
#homeIntroMotion[aria-pressed='true']::before { width: 0; height: 0; border: 4px solid transparent; border-left: 6px solid currentColor; border-right: 0; }
.home-intro-center { position: absolute; top: 46%; left: 50%; width: min(1000px, 80vw); transform: translate(-50%, -50%); text-align: center; mix-blend-mode: multiply; }
.home-intro-eyebrow { margin: 0 0 38px; padding-left: .45em; color: #7959bc; font: 11px/1.8 'Noto Serif SC', 'Songti SC', serif; letter-spacing: .45em; }
.home-intro-lettering { position: relative; width: 100%; aspect-ratio: 2.4; }
.home-intro-title { position: absolute; inset: 0; margin: 0; overflow: hidden; mix-blend-mode: multiply; transform-origin: 50% 50%; animation: intro-center-reveal 4.6s linear both paused; }
.home-intro-title img { filter: invert(1) hue-rotate(180deg); position: absolute; top: 50%; left: 50%; display: block; width: 160%; max-width: none; height: auto; transform: translate(-50%, -50%); user-select: none; }
.home-intro-corners { position: absolute; inset: -14px -23px; opacity: .32; }
.home-intro-corners i { position: absolute; width: 10px; height: 10px; border: solid #c4a6de; border-width: 1px 0 0 1px; }
.home-intro-corners i:nth-child(1) { top: 0; left: 0; }
.home-intro-corners i:nth-child(2) { top: 0; right: 0; transform: rotate(90deg); }
.home-intro-corners i:nth-child(3) { bottom: 0; right: 0; transform: rotate(180deg); }
.home-intro-corners i:nth-child(4) { bottom: 0; left: 0; transform: rotate(270deg); }
.home-intro-subtitle { margin: 32px 0 0; padding-left: .36em; color: #514a63; font: 12px/1.8 'Noto Serif SC', 'Songti SC', serif; letter-spacing: .36em; animation: intro-caption 4.6s linear both paused; }
.home-intro-bottom { position: absolute; bottom: max(14%, 95px); left: 50%; width: 260px; transform: translateX(-50%); }
.home-intro-status { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 13px; color: #736b83; font-size: 10px; line-height: 1.5; letter-spacing: .12em; }
.home-intro-status p { margin: 0; }
.home-intro-status > span { color: #6845ac; font: 10px/1.5 'SFMono-Regular', Consolas, monospace; font-variant-numeric: tabular-nums; letter-spacing: .02em; }
.home-intro-progress { width: 100%; height: 1px; background: #b994d429; }
.home-intro-progress i { display: block; width: 100%; height: 100%; transform: scaleX(0); transform-origin: left; background: linear-gradient(90deg,#8860c4,#7952b8); box-shadow: 0 0 9px #c999fa60; }
.home-intro-loading-note { margin: 16px 0 0; text-align: center; color: #80768f; font-size: 10px; letter-spacing: .1em; }
.home-intro-footer { position: absolute; left: 42px; right: 42px; bottom: max(25px, env(safe-area-inset-bottom)); display: flex; align-items: center; justify-content: space-between; color: #80768f; font-size: 9px; letter-spacing: .15em; line-height: 1.6; }
.home-intro-footer > span:last-child { font-family: Georgia, serif; letter-spacing: .3em; }
body .home-intro :is(button, a):focus-visible { outline: 1px solid #7959bc; outline-offset: 6px; }
.home-intro:focus, #homeHeroTitle[tabindex='-1']:focus { outline: none !important; }
.home-intro[data-phase='exiting'] { pointer-events: none; }
.home-intro-replay { display: inline-flex; align-items: center; min-height: 44px; margin-top: 17px; padding: 8px 0; border: 0; background: transparent; color: var(--dim, #736b83); font: inherit; font-size: 12px; cursor: pointer; }
.home-intro-replay:hover { color: var(--ink, #2b263d); }
@keyframes intro-center-reveal {
  0%, 3% { opacity: 0; clip-path: circle(0% at 50% 50%); transform: scale(.82); filter: blur(5px); }
  10% { opacity: .65; clip-path: circle(15% at 50% 50%); transform: scale(.89); filter: blur(2px); }
  19% { opacity: 1; clip-path: circle(43% at 50% 50%); transform: scale(1.015); filter: blur(.3px); }
  26% { opacity: 1; clip-path: circle(75% at 50% 50%); transform: scale(1.055); filter: blur(0); }
  35% { opacity: 1; clip-path: circle(75% at 50% 50%); transform: scale(.995); filter: blur(0); }
  44%, 100% { opacity: 1; clip-path: circle(75% at 50% 50%); transform: scale(1); filter: blur(0); }
}
@keyframes intro-nebula { 0% { opacity: .15; transform: scale(.65); } 15% { opacity: .5; transform: scale(.85); } 26% { opacity: 1; transform: scale(1.12); } 45%, 100% { opacity: .75; transform: scale(1.16); } }
@keyframes intro-orbit { 0%, 6% { opacity: 0; transform: translate(-50%,-50%) scale(.3) rotate(-12deg); } 26% { opacity: .9; transform: translate(-50%,-50%) scale(1.025) rotate(-3deg); } 44% { opacity: .65; transform: translate(-50%,-50%) scale(1.01) rotate(0deg); } 100% { opacity: .65; transform: translate(-50%,-50%) scale(1.06) rotate(4deg); } }
@keyframes intro-aura { 0%, 7% { opacity: 0; transform: translate(-50%,-50%) scale(.06); } 15% { opacity: .8; transform: translate(-50%,-50%) scale(.36); } 26% { opacity: 1; transform: translate(-50%,-50%) scale(1.02); } 45% { opacity: .15; transform: translate(-50%,-50%) scale(1.8); } 60%, 100% { opacity: 0; transform: translate(-50%,-50%) scale(2.2); } }
@keyframes intro-stars { 0% { opacity: 0; transform: scale(.87); } 38% { opacity: .9; } 100% { opacity: .6; transform: scale(1.06); } }
@keyframes intro-caption { 0%, 40% { opacity: 0; transform: translateY(7px); } 64%, 100% { opacity: 1; transform: translateY(0); } }
@media (max-width: 620px) {
  .home-intro-toolbar { top: max(17px, env(safe-area-inset-top)); left: 23px; right: 23px; gap: 12px; }
  .home-intro-edition { font-size: 9px; gap: 9px; letter-spacing: .2em; }
  .home-intro-edition > small { display: none; }
  .home-intro-tools { gap: 18px; }
  .home-intro-tools button { font-size: 10px; }
  .home-intro-center { top: 44%; width: 88vw; }
  .home-intro-orbit { top: 44%; width: 125vw; }
  .home-intro-aura { top: 44%; width: 170vw; }
  .home-intro-eyebrow { margin-bottom: 46px; font-size: 10px; letter-spacing: .3em; }
  .home-intro-corners { inset: -14px -6px; opacity: .25; }
  .home-intro-corners i { width: 7px; height: 7px; }
  .home-intro-subtitle { margin-top: 38px; font-size: 11px; letter-spacing: .23em; }
  .home-intro-bottom { bottom: max(18%, 110px); width: 220px; }
  .home-intro-footer { left: 23px; right: 23px; bottom: max(24px, env(safe-area-inset-bottom)); font-size: 8px; }
}
@media (max-height: 700px) and (min-width: 621px) {
  .home-intro-center { top: 42%; width: min(720px, 67vw); }
  .home-intro-orbit { top: 42%; width: min(800px, 80vw); }
  .home-intro-eyebrow { margin-bottom: 18px; }
  .home-intro-subtitle { margin-top: 16px; }
  .home-intro-bottom { bottom: 13%; }
}
@media (max-height: 520px) {
  .home-intro-toolbar { top: 8px; }
  .home-intro-center { top: 44%; width: min(470px, 64vw); }
  .home-intro-eyebrow { margin-bottom: 15px; font-size: 9px; }
  .home-intro-subtitle { margin-top: 10px; font-size: 10px; }
  .home-intro-bottom { bottom: 12%; width: 210px; }
  .home-intro-status { margin-bottom: 7px; }
  .home-intro-loading-note { display: none; }
  .home-intro-footer { bottom: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .home-intro *, .home-intro ::before, .home-intro ::after { animation: none !important; }
  .home-intro { opacity: 1; }
  .home-intro-orbit { transform: translate(-50%,-50%); opacity: .6; }
  .home-intro-aura { display: none; }
  .home-intro[data-phase='exiting'] .home-intro-center { transform: translate(-50%,-50%); }
}