:root {
  --bg: #07090a;
  --bg-soft: #0d1012;
  --bg-panel: #12171a;
  --ink: #f2f0e9;
  --muted: #969da0;
  --dim: #5f686c;
  --line: rgba(242, 240, 233, 0.15);
  --line-soft: rgba(242, 240, 233, 0.08);
  --ice: #b7d2d4;
  --ice-bright: #d4e8e5;
  --blue: #8baac0;
  --blue-deep: #59758a;
  --serif: Georgia, 'Noto Serif SC', serif;
  --mono: 'DM Mono', 'SFMono-Regular', Consolas, monospace;
  --world-progress: 0;
  --world-orbit: 1;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: radial-gradient(ellipse at 77% 10%, rgba(77, 113, 133, .13), transparent 27%), radial-gradient(ellipse at 13% 47%, rgba(157, 188, 184, .055), transparent 25%), var(--bg);
  color: var(--ink);
  font-family: 'Noto Sans SC', 'Helvetica Neue', sans-serif;
  margin: 0;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body::before {
  background-image: radial-gradient(rgba(242, 240, 233, .07) .6px, transparent .6px);
  background-size: 5px 5px;
  content: '';
  inset: 0;
  opacity: .18;
  pointer-events: none;
  position: fixed;
  z-index: 0;
}
body::after {
  background: linear-gradient(90deg, transparent, rgba(183, 210, 212, .035), transparent);
  content: '';
  height: 100%;
  left: 0;
  pointer-events: none;
  position: fixed;
  top: 0;
  transform: translateX(-100%);
  width: 26%;
  z-index: 30;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.site-shell { animation: shell-breathe 18s ease-in-out infinite alternate; overflow: hidden; position: relative; z-index: 1; }
.cursor-light { background: radial-gradient(circle, rgba(212, 238, 234, .07) 0, rgba(155, 201, 204, .032) 22%, rgba(99, 145, 162, .012) 45%, transparent 72%); border-radius: 50%; height: clamp(220px, 27vw, 360px); left: 0; opacity: 0; pointer-events: none; position: fixed; top: 0; transform: translate3d(calc(var(--cursor-x, 50vw) - 50%), calc(var(--cursor-y, 42vh) - 50%), 0); transition: opacity .55s ease; width: clamp(220px, 27vw, 360px); z-index: 4; mix-blend-mode: screen; }
.cursor-light::after { background: radial-gradient(circle, rgba(229, 248, 243, .13) 0 1px, transparent 2px); background-size: 11px 11px; border-radius: 50%; content: ''; inset: 24%; opacity: .14; position: absolute; }
.cursor-light.is-visible { opacity: 1; }
@media (pointer: coarse) { .cursor-light { display: none; } }
.ai-entry { align-items: center; background: radial-gradient(circle at 50% 50%, rgba(183, 210, 212, .15), transparent 24%), #07090a; display: flex; inset: 0; justify-content: center; opacity: 0; overflow: hidden; pointer-events: none; position: fixed; transform: scale(1.08); transition: opacity .18s ease, transform 1.15s cubic-bezier(.7, 0, .2, 1); z-index: 50; }
.ai-entry-particles { height: 100%; inset: 0; pointer-events: none; position: absolute; width: 100%; z-index: 1; }
body.is-arriving { overflow: hidden; }
body.is-arriving .site-shell { filter: blur(12px); opacity: .16; transform: scale(.985); }
body.is-arriving.is-arrival-revealing .site-shell { filter: blur(0); opacity: 1; transform: scale(1); transition: filter 1.2s ease, opacity 1s ease, transform 1.2s ease; }
body.is-arriving .ai-entry { opacity: 1; pointer-events: none; transform: scale(1); transition: opacity .22s ease, transform 1.2s cubic-bezier(.7, 0, .2, 1); }
body.is-arriving .ai-entry-grid { opacity: .52; transform: perspective(900px) rotateX(58deg) scale(1.4); transition: opacity 1.1s ease; }
body.is-arriving .ai-entry-core, body.is-arriving .ai-entry-label { opacity: 0; }
body.is-arriving .brand-stage-mark { opacity: 0; transform: translate(-50%, -50%) scale(.42); }
body.is-arriving.is-arrival-revealing .brand-stage-mark { opacity: 1; transform: translate(-50%, -50%) translate3d(var(--brand-shift-x, 0px), var(--brand-shift-y, 0px), 0) rotate(var(--brand-rotate, 0deg)) scale(var(--brand-scale, 1)); transition: opacity .75s ease, transform .9s cubic-bezier(.16, 1, .3, 1); }
.brand-stage-mark { transition: opacity .75s ease, transform .9s cubic-bezier(.16, 1, .3, 1); }

.ai-entry::before { background: radial-gradient(circle, rgba(212, 232, 229, .48) 0 1px, transparent 2px); background-size: 7px 7px; content: ''; height: 48vw; max-height: 680px; max-width: 680px; opacity: .22; position: absolute; width: 48vw; }
.ai-entry-grid { background-image: linear-gradient(rgba(183, 210, 212, .12) 1px, transparent 1px), linear-gradient(90deg, rgba(183, 210, 212, .12) 1px, transparent 1px); background-size: 64px 64px; inset: -20%; mask-image: radial-gradient(ellipse at center, #000, transparent 68%); opacity: .32; position: absolute; transform: perspective(900px) rotateX(58deg) scale(1.25); }
.ai-entry-core { align-items: center; border: 1px solid rgba(212, 232, 229, .65); border-radius: 50%; box-shadow: 0 0 34px rgba(183, 210, 212, .28), 0 0 120px rgba(105, 145, 166, .16); color: var(--ice-bright); display: flex; font: 500 clamp(38px, 7vw, 88px)/1 var(--mono); height: clamp(120px, 19vw, 260px); justify-content: center; letter-spacing: -.12em; opacity: 0; position: relative; transform: scale(.35) rotate(-22deg); transition: opacity .25s ease .22s, transform 1.05s cubic-bezier(.16, 1, .3, 1) .22s; width: clamp(120px, 19vw, 260px); }
.ai-entry-core::before, .ai-entry-core::after { border: 1px solid rgba(139, 170, 192, .48); border-radius: 50%; content: ''; inset: -17%; position: absolute; transform: rotate(34deg) scaleX(1.7); }
.ai-entry-core::after { inset: -29%; opacity: .4; transform: rotate(-48deg) scaleX(1.2); }
.ai-entry-label { bottom: 12%; color: var(--muted); font: 9px var(--mono); letter-spacing: .16em; opacity: 0; position: absolute; transition: opacity .4s ease .55s; }
body.is-entering { overflow: hidden; }
body.is-entering .ai-entry { opacity: 1; pointer-events: auto; transform: scale(1); }
body.is-entering .ai-entry-core { opacity: 1; transform: scale(1) rotate(0); }
body.is-entering .ai-entry-label { opacity: 1; }
body.is-entering .site-shell { filter: blur(2px); transition: filter .25s ease; }
body.is-entering .ai-entry::before { animation: entry-particle-expand 1.25s ease-in forwards; }
@keyframes entry-particle-expand { from { opacity: .16; transform: scale(.5) rotate(0); } to { opacity: .5; transform: scale(1.6) rotate(18deg); } }

.topbar {
  align-items: center;
  background: rgba(7, 9, 10, .76);
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  height: 72px;
  justify-content: space-between;
  padding: 0 clamp(22px, 5vw, 74px);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 20;
  backdrop-filter: blur(18px);
}
.brand { align-items: center; display: flex; gap: 12px; }
.brand-logo { display: block; height: 29px; width: 29px; }
.brand-name { font-size: 14px; font-weight: 900; letter-spacing: -.03em; }
.desktop-nav { display: flex; gap: clamp(25px, 5vw, 65px); margin-left: 90px; }
.desktop-nav a, .mobile-menu a { color: var(--muted); font-size: 12px; transition: color .25s ease; }
.desktop-nav a:hover, .mobile-menu a:hover, .footer a:hover { color: var(--ice); }
.audio-toggle {
  align-items: center;
  background: transparent;
  border: 0;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  gap: 8px;
  height: 34px;
  justify-content: center;
  margin-left: auto;
  padding: 0;
  position: relative;
  transition: color .3s ease, filter .3s ease, transform .3s ease;
  width: 116px;
}
.audio-toggle:hover, .audio-toggle:focus-visible {
  color: #fff;
  filter: drop-shadow(0 0 9px rgba(255, 255, 255, .38));
  outline: none;
  transform: translateY(-1px);
}
.audio-symbol {
  align-items: center;
  display: inline-flex;
  gap: 6px;
  height: 24px;
  justify-content: center;
  width: 44px;
}
.audio-wave-muted i {
  background: currentColor;
  border-radius: 1px;
  display: block;
  height: 3px;
  opacity: .92;
  width: 3px;
}
.audio-symbol,
.audio-state-label,
.audio-visualizer {
  position: relative;
  z-index: 1;
}
.audio-visualizer {
  align-items: center;
  display: inline-flex;
  gap: 5px;
  height: 28px;
  left: 22px;
  opacity: 0;
  pointer-events: none;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%) scale(.82);
  transition: opacity .3s ease, transform .3s ease;
  width: 44px;
  z-index: 0;
}
.audio-visualizer i {
  background: currentColor;
  border-radius: 1px;
  display: block;
  height: 8px;
  transform: scaleY(1);
  transform-origin: center;
  width: 3px;
}
.audio-visualizer i:nth-child(2) { height: 19px; }
.audio-visualizer i:nth-child(3) { height: 28px; }
.audio-visualizer i:nth-child(4) { height: 17px; }
.audio-visualizer i:nth-child(5) { height: 8px; }
.audio-state-label {
  color: rgba(255, 255, 255, .88);
  display: inline-block;
  font: 11px/1 var(--mono);
  letter-spacing: .02em;
  min-width: 44px;
  text-align: left;
  white-space: nowrap;
}
.audio-toggle[data-audio-state="playing"] .audio-symbol {
  opacity: 0;
}
.audio-toggle[data-audio-state="playing"] .audio-visualizer {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.audio-toggle[data-audio-state="playing"] .audio-visualizer i {
  animation: audio-bar-breathe 1.05s ease-in-out infinite alternate;
}
.audio-toggle[data-audio-state="playing"] .audio-visualizer i:nth-child(2) { animation-delay: -.25s; }
.audio-toggle[data-audio-state="playing"] .audio-visualizer i:nth-child(3) { animation-delay: -.52s; }
.audio-toggle[data-audio-state="playing"] .audio-visualizer i:nth-child(4) { animation-delay: -.73s; }
.audio-toggle[data-audio-state="playing"] .audio-visualizer i:nth-child(5) { animation-delay: -.36s; }
.audio-toggle[data-audio-state="playing"] .audio-state-label {
  color: #fff;
}
.audio-toggle:disabled { cursor: not-allowed; opacity: .55; }
.status-pill {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 99px;
  display: flex;
  font: 10px var(--mono);
  gap: 8px;
  padding: 8px 12px;
  transition: border-color .25s ease, color .25s ease;
}
.status-pill:hover { border-color: var(--ice); color: var(--ice); }
.status-dot { background: var(--ice); border-radius: 50%; box-shadow: 0 0 12px var(--ice); height: 6px; width: 6px; }
.menu-toggle { background: none; border: 0; cursor: pointer; display: none; padding: 8px 0 8px 8px; }
.menu-toggle span { background: var(--ink); display: block; height: 1px; margin: 5px 0; width: 25px; }
.mobile-menu { background: rgba(7, 9, 10, .98); border-bottom: 1px solid var(--line); display: none; padding: 90px 24px 20px; position: fixed; top: 0; width: 100%; z-index: 15; }
.mobile-menu a { border-bottom: 1px solid var(--line); display: block; font-size: 18px; padding: 17px 0; }

.section-grid { display: grid; grid-template-columns: minmax(130px, 1fr) minmax(0, 5fr); }
.hero {
  isolation: isolate;
  min-height: min(82svh, 700px);
  padding: 104px clamp(24px, 8vw, 142px) 72px;
  position: relative;
}
.hero::before {
  animation: hero-color-drift 18s ease-in-out infinite alternate;
  background: radial-gradient(ellipse at 74% 39%, rgba(105, 145, 166, .13), transparent 31%), radial-gradient(ellipse at 22% 76%, rgba(183, 210, 212, .04), transparent 34%);
  content: '';
  inset: 0;
  pointer-events: none;
  position: absolute;
  z-index: -3;
}
.hero::after {
  background: linear-gradient(180deg, transparent 58%, var(--bg) 100%);
  bottom: 0;
  content: '';
  height: 22%;
  left: 0;
  pointer-events: none;
  position: absolute;
  width: 100%;
  z-index: -1;
}
.hero-atmosphere { inset: 0; overflow: hidden; pointer-events: none; position: absolute; z-index: -2; }
.hero-particles { height: 100%; opacity: .72; position: absolute; width: 100%; }
.atmosphere-haze { border-radius: 50%; filter: blur(35px); opacity: .17; position: absolute; transform: translate3d(0, var(--parallax-y, 0), 0); }
.haze-a { animation: haze-breathe 12s ease-in-out infinite alternate; background: #6a8da5; height: 42vw; right: 3%; top: 8%; width: 32vw; }
.haze-b { animation: haze-breathe 16s ease-in-out -4s infinite alternate-reverse; background: #a0c1bd; bottom: -15%; height: 27vw; left: 14%; width: 35vw; }
.atmosphere-grid {
  animation: grid-drift 28s linear infinite;
  background-image: linear-gradient(rgba(183, 210, 212, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(183, 210, 212, .045) 1px, transparent 1px);
  background-size: 90px 90px;
  height: 100%;
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 78%, transparent);
  opacity: .35;
  position: absolute;
  transform: perspective(700px) rotateX(62deg) scale(1.5) translateY(24%);
  width: 100%;
}
.atmosphere-scan { animation: scan-line 9s ease-in-out infinite; background: linear-gradient(90deg, transparent, rgba(212, 232, 229, .11), transparent); height: 1px; left: 0; position: absolute; top: 38%; width: 100%; }
.hero-copy {
  grid-column: 2;
  max-width: 970px;
  padding-top: clamp(30px, 4vh, 48px);
  position: relative;
  transform: scale(calc(1 - var(--hero-copy-progress, 0) * .08));
  transform-origin: left center;
  transition: opacity .12s linear;
  z-index: 40;
}
.hero-title-layer { isolation: isolate; }
.hero-copy::after { background: linear-gradient(90deg, transparent, rgba(212, 232, 229, .35), transparent); content: ''; height: 1px; left: -8%; opacity: calc(var(--world-progress, 0) * .7); position: absolute; top: 108%; transform: translateX(calc(var(--world-progress, 0) * 80%)); width: 62%; }
.hero-copy .eyebrow, .hero-copy .hero-intro, .hero-copy .hero-actions { opacity: calc(1 - var(--hero-copy-progress, 0) * .92); }
.hero-copy h1 {
  opacity: 1;
  position: relative;
  z-index: 1;
}
.hero-copy .hero-title-primary {
  color: #fff;
  display: inline-block;
  opacity: 1;
  position: relative;
  text-shadow:
    0 1px 0 rgba(255, 255, 255, .42),
    1px 2px 0 #c2d0d5,
    2px 3px 0 #91a5ae,
    3px 4px 0 #61767f,
    7px 12px 20px rgba(0, 0, 0, .56),
    0 0 24px rgba(231, 246, 250, .12);
  transform: none;
  transform-origin: left center;
  z-index: 2;
}
.hero-copy .accent-text {
  color: var(--ice);
  opacity: calc(1 - var(--hero-copy-progress, 0) * .92);
}
.hero-copy .eyebrow, .hero-copy h1, .hero-copy .hero-intro, .hero-copy .hero-actions { transition: opacity .12s linear; }
.eyebrow { color: var(--muted); font: 10px var(--mono); letter-spacing: .07em; margin: 0 0 27px; text-transform: uppercase; }
.eyebrow span { color: var(--ice); margin-right: 13px; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(55px, 9vw, 132px); font-weight: 900; letter-spacing: -.105em; line-height: .91; margin-bottom: 39px; max-width: 970px; text-wrap: balance; }
.accent-text { color: var(--ice); }
.hero-intro { color: var(--muted); font-size: 15px; line-height: 1.9; max-width: 420px; }
.hero-actions { align-items: center; display: flex; gap: 28px; margin-top: 39px; }
.button { align-items: center; display: inline-flex; font-size: 12px; gap: 20px; padding: 14px 18px; transition: background .25s, color .25s, transform .25s; }
.button-primary { background: var(--ice); color: #091012; }
.button-primary:hover { background: var(--ice-bright); transform: translateY(-3px); }
.text-link { color: var(--muted); font: 11px var(--mono); }
.text-link:hover { color: var(--ice); }
.text-link span { color: var(--ice); margin-left: 8px; }

/* 首页右侧是一个完整叙事场景：远景、地面、光体、轨道与人物共同建立尺度。 */
.hero-stage {
  animation: brand-stage-breathe 12s ease-in-out infinite alternate;
  background: transparent;
  border: 0;
  box-shadow: none;
  height: min(48vw, 620px);
  max-height: 69vh;
  min-height: 420px;
  opacity: calc(1 - var(--world-progress, 0) * .48);
  overflow: visible;
  pointer-events: auto;
  position: absolute;
  right: clamp(8px, 3vw, 54px);
  top: 10%;
  transform: translate3d(calc(var(--world-progress, 0) * 8vw), calc(var(--parallax-y, 0px) + var(--world-progress, 0) * 11vh), 0) scale(calc(1 - var(--world-progress, 0) * .22));
  transform-origin: center;
  transition: opacity .12s linear;
  width: min(48vw, 680px);
  z-index: 1;
}
.brand-stage-sky, .brand-stage-ground, .brand-stage-horizon, .brand-stage-orbits, .brand-stage-beam, .brand-stage-pedestal { pointer-events: none; position: absolute; }
.brand-stage-sky { background: transparent; inset: 0; overflow: hidden; z-index: 0; }
.brand-stage-sky::before { background-image: radial-gradient(rgba(212, 232, 229, .75) .7px, transparent .9px); background-size: 47px 53px; content: ''; inset: 0; mask-image: radial-gradient(ellipse at 62% 40%, #000 4%, transparent 70%); opacity: .45; position: absolute; }
.brand-stage-nebula { border-radius: 50%; filter: blur(31px); opacity: .24; position: absolute; }.nebula-a { background: #557f9e; height: 42%; right: -6%; top: 6%; width: 55%; }.nebula-b { background: #9dbbb8; bottom: 25%; height: 28%; left: 13%; opacity: .12; width: 48%; }
.brand-stage-planet { border: 1px solid rgba(183, 210, 212, .35); border-radius: 50%; box-shadow: 0 0 24px rgba(139, 170, 192, .18), inset -13px -10px 22px rgba(0, 0, 0, .72); height: clamp(40px, 8vw, 100px); overflow: hidden; position: absolute; right: 5%; top: 12%; width: clamp(40px, 8vw, 100px); }.brand-stage-planet::before { background: radial-gradient(circle at 32% 29%, rgba(242, 240, 233, .68), transparent 4%), radial-gradient(ellipse at 55% 45%, rgba(105, 145, 166, .5), transparent 48%), rgba(15, 33, 44, .85); border-radius: 50%; content: ''; inset: 0; position: absolute; }.brand-stage-planet span { border: 1px solid rgba(212, 232, 229, .24); border-radius: 50%; height: 36%; left: 4%; position: absolute; top: 32%; transform: rotate(-21deg) scaleX(1.55); width: 92%; }
.brand-stage-star { background: var(--ice-bright); border-radius: 50%; box-shadow: 0 0 8px var(--ice); height: 2px; position: absolute; width: 2px; }.star-a { left: 13%; top: 19%; }.star-b { right: 28%; top: 29%; opacity: .6; }.star-c { left: 36%; top: 11%; opacity: .4; }
.brand-stage-horizon { background: radial-gradient(ellipse at 57% 100%, rgba(139, 170, 192, .3), transparent 51%); border-top: 1px solid rgba(183, 210, 212, .35); border-radius: 50% 50% 0 0; bottom: 15%; height: 39%; left: -20%; opacity: .78; position: absolute; transform: perspective(380px) rotateX(58deg) scaleX(1.3); width: 140%; z-index: 2; }
.brand-stage-ground { background: transparent; bottom: 0; height: 54%; left: -8%; overflow: visible; width: 116%; z-index: 3; }.ground-ridge { background: linear-gradient(90deg, transparent, rgba(183, 210, 212, .24), transparent); border-radius: 50%; height: 1px; position: absolute; transform: rotate(-7deg); width: 45%; }.ridge-a { left: 3%; top: 51%; }.ridge-b { right: 2%; top: 39%; transform: rotate(9deg); }.ridge-c { left: 25%; top: 68%; opacity: .45; width: 34%; }
.brand-particle-field { height: 100%; inset: 0; pointer-events: none; position: absolute; transform: scale(calc(1 + var(--world-progress, 0) * .1)); transition: transform .12s linear; width: 100%; z-index: 5; }
.brand-stage-orbits { inset: 4% 3% 18%; transform: perspective(600px) rotateX(4deg); z-index: 4; }.brand-stage-orbit { border: 1px solid rgba(212, 232, 229, .32); border-radius: 50%; left: 56%; position: absolute; top: 43%; transform: translate(-50%, -50%); }.orbit-a { animation: brand-orbit-spin 18s linear infinite; height: 54%; transform: translate(-50%, -50%) rotate(-18deg); width: 95%; }.orbit-b { animation: brand-orbit-spin 25s linear -8s infinite reverse; border-color: rgba(139, 170, 192, .48); height: 88%; transform: translate(-50%, -50%) rotate(57deg); width: 44%; }.orbit-c { animation: brand-orbit-spin 31s linear -15s infinite; border-color: rgba(212, 232, 229, .18); height: 68%; transform: translate(-50%, -50%) rotate(33deg); width: 79%; }
.brand-stage-beam { background: linear-gradient(180deg, transparent, rgba(212, 232, 229, .17) 30%, rgba(212, 232, 229, .32) 68%, transparent); filter: blur(2px); height: 76%; left: 54%; opacity: .55; position: absolute; top: 4%; transform: translateX(-50%) scaleX(.7); width: 11%; z-index: 2; }.brand-stage-beam::after { background: linear-gradient(90deg, transparent, rgba(212, 232, 229, .58), transparent); content: ''; height: 1px; left: -310%; position: absolute; top: 67%; width: 720%; }
.brand-stage-pedestal { background: linear-gradient(90deg, rgba(19, 32, 38, .1), rgba(183, 210, 212, .7) 19%, rgba(212, 232, 229, .9) 50%, rgba(183, 210, 212, .7) 81%, rgba(19, 32, 38, .1)); bottom: 23%; box-shadow: 0 0 22px rgba(183, 210, 212, .3); height: 4px; left: 32%; opacity: .85; position: absolute; transform: perspective(160px) rotateX(22deg); width: 48%; z-index: 6; }.brand-stage-pedestal::after { background: radial-gradient(ellipse, rgba(183, 210, 212, .35), transparent 69%); content: ''; filter: blur(5px); height: 150%; left: -5%; position: absolute; top: -25%; width: 110%; }
.brand-stage-mark { align-items: center; display: flex; flex-direction: column; left: 56%; position: absolute; text-align: center; top: 55%; transform: translate(-50%, -50%) translate3d(var(--brand-shift-x, 0px), var(--brand-shift-y, 0px), 0) rotate(var(--brand-rotate, 0deg)) scale(var(--brand-scale, 1)); transition: transform .3s ease-out; z-index: 7; }.brand-stage-mark::before { background: radial-gradient(circle, rgba(212, 232, 229, .3), transparent 66%); border-radius: 50%; content: ''; filter: blur(15px); height: 230%; left: -65%; pointer-events: none; position: absolute; top: -65%; width: 230%; z-index: -1; }.brand-stage-logo { animation: brand-logo-morph 8s ease-in-out infinite alternate; display: block; height: clamp(150px, 19vw, 255px); object-fit: contain; width: clamp(150px, 19vw, 255px); }.brand-stage-mark .brand-stage-logo { position: relative; z-index: 2; }.brand-stage-name { color: var(--ice-bright); font-size: clamp(15px, 1.7vw, 21px); font-weight: 700; letter-spacing: .14em; margin-top: 7px; text-shadow: 0 0 16px rgba(212, 232, 229, .7); }.brand-stage-caption { color: var(--muted); font: 8px var(--mono); letter-spacing: .16em; margin-top: 8px; }.brand-stage-label { color: rgba(212, 232, 229, .62); font: 9px var(--mono); letter-spacing: .1em; pointer-events: none; position: absolute; z-index: 9; }.brand-stage-label-top { left: 8%; top: 23%; }.brand-stage-label-bottom { bottom: 19%; right: 5%; }.brand-stage-scale { bottom: 8%; color: rgba(183, 210, 212, .45); font: 8px var(--mono); letter-spacing: .14em; position: absolute; right: 5%; writing-mode: vertical-rl; z-index: 9; }
/* 首屏右侧只承担 Logo 与粒子场，不再渲染额外的行星、轨道或地面装置。 */
.hero-stage {
  animation: none;
  background: transparent;
  height: min(42vw, 460px);
  max-height: calc(100svh - 142px);
  min-height: 250px;
  opacity: calc(1 - var(--world-progress, 0) * .48);
  overflow: hidden;
  pointer-events: auto;
  position: absolute;
  right: clamp(8px, 3vw, 54px);
  top: 7%;
  transform: translate3d(calc(var(--world-progress, 0) * 8vw), calc(var(--parallax-y, 0px) + var(--world-progress, 0) * 11vh), 0) scale(calc(1 - var(--world-progress, 0) * .22));
  transform-origin: center;
  transition: opacity .12s linear;
  width: min(42vw, 560px);
  z-index: 1;
}
.brand-particle-field {
  height: 100%;
  inset: 0;
  opacity: .9;
  pointer-events: none;
  position: absolute;
  transform: none;
  transition: opacity .12s linear;
  width: 100%;
  z-index: 1;
}
.brand-stage-mark {
  align-items: center;
  display: flex;
  left: 50%;
  position: absolute;
  text-align: center;
  top: 50%;
  transform: translate(-50%, -50%) translate3d(var(--brand-shift-x, 0px), var(--brand-shift-y, 0px), 0) rotate(var(--brand-rotate, 0deg)) scale(var(--brand-scale, 1));
  transition: transform .3s ease-out;
  z-index: 2;
}
.brand-stage-mark::before {
  background: radial-gradient(circle, rgba(212, 232, 229, .24), transparent 66%);
  border-radius: 50%;
  content: '';
  filter: blur(15px);
  height: 220%;
  left: -60%;
  pointer-events: none;
  position: absolute;
  top: -60%;
  width: 220%;
  z-index: -1;
}
.brand-stage-logo {
  animation: brand-logo-morph 8s ease-in-out infinite alternate;
  display: block;
  height: clamp(138px, 17vw, 230px);
  object-fit: contain;
  width: clamp(138px, 17vw, 230px);
}

@keyframes audio-bar-breathe {
  from { transform: scaleY(.68); }
  to { transform: scaleY(1.18); }
}
@keyframes brand-logo-morph { from { filter: drop-shadow(0 0 14px rgba(212, 232, 229, .72)) drop-shadow(0 0 40px rgba(105, 145, 166, .38)) brightness(.9); transform: scale(.96) skewX(-1deg); } to { filter: drop-shadow(0 0 22px rgba(212, 232, 229, .94)) drop-shadow(0 0 54px rgba(105, 145, 166, .52)) brightness(1.16); transform: scale(1.04) skewX(1deg); } }
@keyframes brand-ring-breathe { from { opacity: .44; } to { opacity: .88; } }
@keyframes brand-orbit-spin { from { rotate: 0deg; } to { rotate: 360deg; } }
@keyframes haze-breathe { from { opacity: .12; transform: translate3d(0, var(--parallax-y, 0), 0) scale(.96); } to { opacity: .22; transform: translate3d(2%, var(--parallax-y, 0), 0) scale(1.04); } }
@keyframes shell-breathe { from { background-position: 0 0; } to { background-position: 2vw -1vh; } }
@keyframes hero-color-drift { from { filter: hue-rotate(0deg); opacity: .8; } to { filter: hue-rotate(9deg); opacity: 1; } }
@keyframes grid-drift { from { background-position: 0 0; } to { background-position: 90px 45px; } }
@keyframes scan-line { 0%, 100% { opacity: .15; transform: translateY(-22vh); } 50% { opacity: .75; transform: translateY(24vh); } }
@keyframes field-orbit { from { transform: translate(-50%, -50%) rotate(25deg); } to { transform: translate(-50%, -50%) rotate(385deg); } }
@keyframes field-line-drift { 0%, 100% { opacity: .2; transform: rotate(22deg) scaleX(.75); } 50% { opacity: .9; transform: rotate(22deg) scaleX(1.08); } }
@keyframes node-float-a { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(18px, 11px); } }
@keyframes node-float-b { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(-14px, -9px); } }
@keyframes visual-scan { 0%, 100% { opacity: 0; transform: translateY(-80%); } 45%, 60% { opacity: 1; } 100% { transform: translateY(430%); } }
@keyframes card-scan { from { left: -40%; } to { left: 100%; } }
@keyframes halo-drift { from { opacity: .34; transform: rotate(20deg) scale(.94); } to { opacity: .8; transform: rotate(29deg) scale(1.05); } }
@keyframes glow-drift { from { opacity: .35; transform: translate3d(-2%, 0, 0) scale(.94); } to { opacity: .85; transform: translate3d(2%, 3%, 0) scale(1.05); } }
@keyframes works-breathe { from { background-position: 0 0; } to { background-position: 0 18px; } }
@keyframes contact-breathe { from { background-position: 0 0; } to { background-position: 6% 4%; } }
@keyframes contact-glow { from { opacity: .35; transform: scale(.92); } to { opacity: .8; transform: scale(1.1); } }
@keyframes contact-sweep { 0%, 25% { transform: translateX(-100%); } 60%, 100% { transform: translateX(100%); } }
@keyframes decor-fade { from { opacity: .12; } to { opacity: .32; } }
@keyframes footer-glow { from { border-color: var(--line-soft); } to { border-color: rgba(183, 210, 212, .24); } }
.hero-footline { align-items: center; border-top: 1px solid var(--line); bottom: 38px; color: var(--muted); display: flex; font: 10px var(--mono); grid-column: 1 / -1; justify-content: space-between; padding-top: 13px; position: absolute; width: calc(100% - clamp(48px, 16vw, 280px)); z-index: 4; }
.scroll-note { align-items: center; display: flex; gap: 8px; }.scroll-note i { background: var(--ice); border-radius: 50%; box-shadow: 0 0 10px var(--ice); height: 6px; width: 6px; }

.manifesto, .tools-section { border-top: 1px solid var(--line); overflow: hidden; padding: 137px clamp(24px, 8vw, 142px) 145px; position: relative; }
.section-atmosphere > *:not(.section-halo) { position: relative; z-index: 1; }
.section-halo { border: 1px solid rgba(183, 210, 212, .12); border-radius: 50%; height: clamp(420px, 48vw, 760px); opacity: .6; pointer-events: none; position: absolute; width: clamp(420px, 48vw, 760px); z-index: 0; }
.about-world-seal { align-items: center; border: 1px solid rgba(183, 210, 212, .28); border-radius: 50%; display: flex; height: clamp(240px, 29vw, 430px); justify-content: center; opacity: calc(var(--about-transition, 0) * .72); pointer-events: none; position: absolute; right: clamp(-150px, -8vw, -40px); top: 7%; transform: translate3d(calc((1 - var(--about-transition, 0)) * 18vw), calc((1 - var(--about-transition, 0)) * 12vh), 0) scale(calc(.62 + var(--about-transition, 0) * .38)) rotate(calc((1 - var(--about-transition, 0)) * -18deg)); transition: opacity .12s linear; width: clamp(240px, 29vw, 430px); z-index: 0; }
.about-world-seal::before, .about-world-seal::after { border: 1px solid rgba(139, 170, 192, .25); border-radius: 50%; content: ''; inset: 12%; position: absolute; transform: rotate(43deg) scaleX(1.45); }
.about-world-seal::after { inset: 24%; opacity: .65; transform: rotate(-38deg) scaleX(1.14); }
.about-world-seal img { filter: drop-shadow(0 0 20px rgba(183, 210, 212, .38)); height: 24%; object-fit: contain; position: relative; width: 24%; z-index: 1; }
.about-world-seal::marker { display: none; }
.about-seal-orbit { border: 1px solid rgba(212, 232, 229, .34); border-radius: 50%; height: 68%; position: absolute; width: 43%; }.about-seal-orbit-a { transform: rotate(24deg); }.about-seal-orbit-b { border-color: rgba(139, 170, 192, .4); transform: rotate(-57deg) scaleX(1.3); }
.about-seal-label { bottom: 19%; color: var(--muted); font: 8px var(--mono); letter-spacing: .16em; position: absolute; z-index: 2; }
.manifesto-content { opacity: calc(.52 + var(--about-transition, 0) * .48); transform: translate3d(0, calc((1 - var(--about-transition, 0)) * 22px), 0); transition: opacity .12s linear, transform .12s linear; }

.about-layout { align-items: center; display: grid; gap: clamp(45px, 8vw, 145px); grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr); margin: 0 auto; max-width: 1440px; min-height: 620px; position: relative; width: 100%; }
.about-copy { max-width: 700px; position: relative; z-index: 2; }
.about-heading-line { align-items: center; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; margin-bottom: 35px; padding-bottom: 14px; }
.about-heading-line .eyebrow { margin-bottom: 0; }.about-location { color: var(--muted); font: 9px var(--mono); letter-spacing: .1em; }
.about-copy h2 { font-size: clamp(48px, 6.2vw, 92px); letter-spacing: -.105em; line-height: .91; margin: 0 0 30px; text-wrap: balance; }
.title-line { display: block; white-space: nowrap; }
.about-copy h2 span { color: var(--ink); }.about-copy h2 em { color: var(--ice); font-family: var(--serif); font-weight: 400; }
.about-role { color: var(--ice); font: 11px var(--mono); letter-spacing: .03em; margin-bottom: 27px; }.about-lead { color: var(--ink); font-size: 17px; line-height: 1.75; max-width: 520px; }.about-body { color: var(--muted); font-size: 13px; line-height: 1.95; max-width: 520px; }
.about-link { border-bottom: 1px solid rgba(183, 210, 212, .45); display: inline-flex; font: 11px var(--mono); gap: 26px; margin-top: 24px; padding-bottom: 11px; transition: border-color .25s ease, color .25s ease; }.about-link span { color: var(--ice); font-size: 17px; }.about-link:hover { border-color: var(--ice); color: var(--ice); }
.about-author-photo { display: block; height: 100%; inset: 0; object-fit: cover; opacity: .78; position: absolute; width: 100%; z-index: 0; }
.about-portrait { background: radial-gradient(circle at 50% 45%, rgba(139, 170, 192, .2), transparent 29%), linear-gradient(145deg, rgba(23, 38, 45, .75), rgba(3, 7, 9, .95)); border: 1px solid rgba(183, 210, 212, .24); height: min(58vw, 690px); min-height: 500px; overflow: hidden; position: relative; }
.about-portrait:has(.about-author-photo:not([hidden])) .about-portrait-glow { opacity: .25; }
.about-portrait::before { background: linear-gradient(115deg, transparent 37%, rgba(212, 232, 229, .12) 50%, transparent 63%); content: ''; inset: 0; opacity: .55; pointer-events: none; position: absolute; z-index: 2; }.about-portrait::after { border: 1px solid rgba(183, 210, 212, .22); content: ''; inset: 6%; pointer-events: none; position: absolute; z-index: 3; }
.about-particles { height: 100%; inset: 0; position: absolute; width: 100%; z-index: 1; }.about-portrait-glow { background: radial-gradient(circle, rgba(212, 232, 229, .3), rgba(105, 145, 166, .12) 30%, transparent 68%); filter: blur(18px); height: 80%; left: 10%; position: absolute; top: 10%; width: 80%; }.about-portrait-grid { background-image: linear-gradient(rgba(183, 210, 212, .06) 1px, transparent 1px), linear-gradient(90deg, rgba(183, 210, 212, .06) 1px, transparent 1px); background-size: 42px 42px; inset: -20%; mask-image: radial-gradient(ellipse, #000, transparent 72%); opacity: .55; position: absolute; transform: perspective(700px) rotateX(58deg) scale(1.35) translateY(18%); }
.about-portrait-mark { align-items: center; display: flex; flex-direction: column; left: 50%; position: absolute; text-align: center; top: 50%; transform: translate(-50%, -50%) translate3d(var(--portrait-mark-x, 0px), var(--portrait-mark-y, 0px), 0) rotate(var(--portrait-mark-rotate, 0deg)) scale(var(--portrait-mark-scale, 1)); transition: transform .45s cubic-bezier(.16, 1, .3, 1); z-index: 2; }.about-portrait-mark img { filter: drop-shadow(0 0 12px rgba(212, 232, 229, .75)); height: clamp(92px, 13vw, 170px); width: clamp(92px, 13vw, 170px); transition: filter .45s ease, transform .45s cubic-bezier(.16, 1, .3, 1); }.about-portrait:hover .about-portrait-mark img, .about-portrait:focus-within .about-portrait-mark img { filter: drop-shadow(0 0 14px rgba(212, 232, 229, .95)) drop-shadow(0 0 34px rgba(139, 170, 192, .72)); }.about-portrait-mark span { color: var(--muted); font: 9px var(--mono); letter-spacing: .18em; margin-top: 19px; }
.about-portrait-caption, .about-portrait-index { color: rgba(212, 232, 229, .7); font: 9px/1.5 var(--mono); letter-spacing: .12em; position: absolute; z-index: 4; }.about-portrait-caption { bottom: 8%; left: 8%; }.about-portrait-index { right: 8%; top: 8%; writing-mode: vertical-rl; }
.about-principles { border-top: 1px solid var(--line); display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); margin: 52px auto 0; max-width: 1440px; padding-top: 21px; }.about-principles div { display: grid; gap: 8px; grid-template-columns: 28px 1fr; }.about-principles span { color: var(--ice); font: 10px var(--mono); grid-row: span 2; }.about-principles strong { font-size: 13px; }.about-principles small { color: var(--muted); font-size: 11px; }

.halo-about { animation: halo-drift 23s ease-in-out infinite alternate; right: -16%; top: 12%; transform: rotate(23deg); }
.halo-works { animation: halo-drift 25s ease-in-out -5s infinite alternate-reverse; right: -19%; top: 8%; transform: rotate(-17deg) scale(.88); }
.halo-tools { animation: halo-drift 27s ease-in-out -8s infinite alternate-reverse; left: 42%; top: 7%; transform: rotate(-31deg) scale(.9); }
.halo-contact { animation: halo-drift 21s ease-in-out -3s infinite alternate; right: -21%; top: 14%; transform: rotate(37deg) scale(1.08); }
.manifesto::before, .tools-section::before { background: linear-gradient(90deg, var(--ice), transparent); content: ''; height: 1px; left: clamp(24px, 8vw, 142px); opacity: .55; position: absolute; top: -1px; width: 17%; }
.manifesto::after, .tools-section::after { background: linear-gradient(90deg, transparent, rgba(183, 210, 212, .08), transparent); content: ''; height: 100%; pointer-events: none; position: absolute; right: -20%; top: 0; transform: skewX(-24deg); width: 28%; }
.section-index { color: var(--muted); display: flex; flex-direction: column; font: 10px var(--mono); gap: 13px; letter-spacing: .07em; text-transform: uppercase; }.section-index span:first-child { color: var(--ice); }
.manifesto-content, .tools-content { max-width: 970px; }.manifesto h2, .tools-content h2 { font-size: clamp(43px, 7vw, 94px); letter-spacing: -.095em; line-height: .95; margin: 0 0 54px; text-wrap: balance; }.manifesto h2 em { color: var(--ice); font-family: var(--serif); font-weight: 400; }
.about-columns { display: grid; gap: 65px; grid-template-columns: repeat(2, 1fr); max-width: 710px; }.about-columns p { color: var(--muted); font-size: 14px; line-height: 1.95; }.principles { border-top: 1px solid var(--line); display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); margin-top: 70px; padding-top: 21px; }.principles div { display: grid; gap: 8px; grid-template-columns: 28px 1fr; }.principles span { color: var(--ice); font: 10px var(--mono); grid-row: span 2; }.principles strong { font-size: 13px; }.principles small { color: var(--muted); font-size: 11px; }

.works-section {
  animation: works-breathe 20s ease-in-out infinite alternate;
  background: linear-gradient(180deg, rgba(18, 23, 26, .92), rgba(7, 9, 10, .98));
  border-top: 1px solid var(--line);
  padding: 121px clamp(24px, 8vw, 142px) 142px;
  position: relative;
}
.works-section::before { animation: glow-drift 16s ease-in-out infinite alternate; background: radial-gradient(ellipse, rgba(139, 170, 192, .13), transparent 68%); content: ''; height: 560px; pointer-events: none; position: absolute; right: -10%; top: 80px; width: 55%; }
.works-section::after { background: repeating-linear-gradient(90deg, transparent 0 110px, rgba(183, 210, 212, .035) 111px, transparent 112px); content: ''; inset: 0; opacity: .3; pointer-events: none; position: absolute; }
.works-heading {
  margin-bottom: 71px;
  position: relative;
}
.works-heading > div {
  grid-column: 2;
  grid-row: 1;
}
.works-heading h2 {
  font-size: clamp(46px, 7.4vw, 101px);
  letter-spacing: -.105em;
  line-height: .9;
  margin: 0;
  text-wrap: balance;
}
.works-heading h2 .title-line { display: block; white-space: nowrap; }
.outline-text { color: transparent; -webkit-text-stroke: 1px var(--blue); }
.works-summary {
  align-self: start;
  color: var(--muted);
  font-size: 13px;
  grid-column: 2;
  grid-row: 2;
  line-height: 1.85;
  margin: 25px 0 0;
  max-width: 700px;
  padding-bottom: 4px;
  white-space: nowrap;
}
.project-list { display: grid; gap: 18px; grid-auto-flow: dense; grid-template-columns: 1.34fr 1fr; position: relative; }.project-card { background: rgba(242, 240, 233, .045); border: 1px solid rgba(242, 240, 233, .1); min-width: 0; position: relative; transition: border-color .3s ease, transform .3s ease; }
.project-card::before { background: linear-gradient(90deg, transparent, rgba(183, 210, 212, .65), transparent); content: ''; height: 1px; left: -40%; opacity: 0; position: absolute; top: 0; transition: opacity .35s ease; width: 40%; z-index: 2; }
.project-card:hover { border-color: rgba(183, 210, 212, .58); transform: translateY(-4px); }
.project-feature { grid-row: auto; }
.project-visual { aspect-ratio: 16 / 10; overflow: hidden; position: relative; }
.visual-image { background: #182126; }
.visual-image.image-missing { background: radial-gradient(circle at 70% 28%, rgba(139, 170, 192, .65), transparent 20%), linear-gradient(145deg, #27383e, #080a0b); }
.visual-image.image-missing::after { color: rgba(242, 240, 233, .7); content: '作品图待上传'; font: 10px var(--mono); left: 17px; position: absolute; top: 17px; }
.visual-image img { display: block; height: 100%; object-fit: cover; opacity: .94; transition: transform .5s ease, opacity .3s ease; width: 100%; }
.visual-road img { object-position: center 46%; }
.visual-murong img { object-position: center 48%; }
.visual-mountain img { object-position: center 42%; }
.visual-immortal img { object-position: center 40%; }
.project-card:hover .visual-image img { opacity: 1; transform: scale(1.035); }
.visual-caption { background: rgba(7, 9, 10, .7); bottom: 15px; color: rgba(242, 240, 233, .9); font: 10px var(--mono); left: 17px; padding: 5px 7px; position: absolute; z-index: 3; }
.visual-field { inset: 0; opacity: .58; overflow: hidden; pointer-events: none; position: absolute; z-index: 1; }
.visual-field::before { background: radial-gradient(circle at 48% 48%, rgba(183, 210, 212, .26), transparent 25%), linear-gradient(125deg, transparent 45%, rgba(212, 232, 229, .08) 50%, transparent 55%); content: ''; inset: 0; position: absolute; }
.field-ring { border: 1px solid rgba(183, 210, 212, .52); border-radius: 50%; left: 50%; position: absolute; top: 50%; }
.field-ring-a { animation: field-orbit 17s linear infinite; height: 78%; transform: translate(-50%, -50%) rotate(25deg); width: 72%; }
.field-ring-b { animation: field-orbit 23s linear -8s infinite reverse; border-color: rgba(139, 170, 192, .55); height: 51%; transform: translate(-50%, -50%) rotate(-45deg); width: 86%; }
.field-line { background: linear-gradient(90deg, transparent, rgba(212, 232, 229, .65), transparent); height: 1px; left: 0; position: absolute; top: 50%; width: 100%; }
.field-line-a { animation: field-line-drift 8s ease-in-out infinite; transform: rotate(22deg); }.field-line-b { animation: field-line-drift 11s ease-in-out -4s infinite reverse; opacity: .5; transform: rotate(-31deg); }
.field-node { background: var(--ice); border-radius: 50%; box-shadow: 0 0 16px rgba(183, 210, 212, .75); height: 5px; position: absolute; width: 5px; }.field-node-a { animation: node-float-a 9s ease-in-out infinite; left: 24%; top: 29%; }.field-node-b { animation: node-float-b 12s ease-in-out infinite; bottom: 25%; right: 21%; }
.visual-scanline { animation: visual-scan 8s ease-in-out infinite; background: linear-gradient(180deg, transparent, rgba(212, 232, 229, .22), transparent); height: 28%; left: 0; pointer-events: none; position: absolute; top: -30%; width: 100%; z-index: 2; }
.visual-road img { position: relative; z-index: 0; }
.visual-road.image-missing .visual-field { opacity: .9; }
.project-info { min-height: 163px; padding: 23px 25px 20px; position: relative; }.project-meta { color: var(--muted); display: flex; font: 10px var(--mono); gap: 15px; justify-content: space-between; }.project-info h3 { font-size: 21px; letter-spacing: -.04em; line-height: 1.25; margin: 20px 0 9px; padding-right: 42px; }.project-info p { color: var(--muted); font-size: 12px; line-height: 1.75; margin: 0; max-width: 390px; padding-right: 35px; }.circle-link { align-items: center; border: 1px solid var(--line); border-radius: 50%; bottom: 22px; display: flex; font-size: 17px; height: 36px; justify-content: center; position: absolute; right: 23px; transition: background .2s, color .2s, transform .2s; width: 36px; }.circle-link:hover { background: var(--ice); color: #091012; transform: rotate(12deg); }
.tool-list { border-top: 1px solid var(--line); margin-top: 15px; }.tool-item { align-items: center; border-bottom: 1px solid var(--line); display: grid; gap: 20px; grid-template-columns: 45px 1.2fr 1fr 30px; padding: 24px 0; transition: color .2s, padding .2s; }.tool-item:hover { color: var(--ice); padding-left: 13px; }.tool-number, .tool-desc { color: var(--muted); font: 10px var(--mono); }.tool-name { font-size: 17px; font-weight: 700; }.tool-arrow { font-size: 20px; text-align: right; }

.contact-section { animation: contact-breathe 18s ease-in-out infinite alternate; background: linear-gradient(135deg, #202e35, #101b22 65%, #0d1113); color: #fff; min-height: 620px; overflow: hidden; padding: 137px clamp(24px, 14vw, 240px); position: relative; }.contact-section::before { animation: contact-glow 13s ease-in-out infinite alternate; background: radial-gradient(circle, rgba(183, 210, 212, .22), transparent 66%); content: ''; height: 540px; position: absolute; right: -12%; top: -20%; width: 540px; }.contact-section::after { background: linear-gradient(115deg, transparent 38%, rgba(212, 232, 229, .09) 49%, transparent 51%); content: ''; inset: 0; pointer-events: none; position: absolute; transform: translateX(-100%); animation: contact-sweep 14s ease-in-out infinite; }
.contact-inner { position: relative; z-index: 2; }.contact-section .eyebrow { color: rgba(255, 255, 255, .72); }.contact-section h2 { font-size: clamp(52px, 8.4vw, 119px); letter-spacing: -.11em; line-height: .88; margin: 0 0 34px; text-wrap: balance; }.contact-section h2 span { color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, .9); }.contact-copy { font-size: 14px; line-height: 1.85; max-width: none; white-space: nowrap; }
.contact-links { border-top: 1px solid rgba(255, 255, 255, .24); display: grid; gap: 8px; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 47px; max-width: 760px; padding-top: 18px; }
.contact-item { background: rgba(5, 10, 13, .24); border: 1px solid rgba(255, 255, 255, .18); display: flex; flex-direction: column; gap: 10px; min-height: 78px; padding: 15px 16px 13px; position: relative; transition: background .2s ease, border-color .2s ease, transform .2s ease; }
.contact-item:hover, .contact-item:focus-within { background: rgba(183, 210, 212, .1); border-color: rgba(183, 210, 212, .52); transform: translateY(-2px); }
.contact-item-label { font-size: 9px; }
.contact-item-value { color: rgba(255, 255, 255, .92); font: 13px/1.45 var(--mono); overflow-wrap: anywhere; }
.contact-item a:hover, .contact-item a:focus-visible { color: var(--ice-bright); outline: none; }
.contact-note { color: rgba(255, 255, 255, .58); font: 10px var(--mono); grid-column: 1 / -1; letter-spacing: .08em; padding: 8px 2px 0; }
.copy-contact-button { align-items: center; background: transparent; border: 0; color: inherit; cursor: copy; display: inline-flex; font: inherit; justify-content: flex-start; max-width: 100%; padding: 0; position: relative; text-align: left; }
.copy-contact-button::after { color: var(--ice); content: attr(data-copy-hint); font: 10px var(--mono); left: calc(100% + 12px); opacity: 0; pointer-events: none; position: absolute; top: 50%; transform: translateY(-50%); transition: opacity .2s ease; white-space: nowrap; }
.copy-contact-button[data-copy-hint]::after { opacity: 1; }
.copy-contact-button:hover, .copy-contact-button:focus-visible { color: var(--ice-bright); outline: none; text-decoration: underline; text-decoration-style: dotted; text-underline-offset: 5px; }
.copy-contact-button.is-copied { color: var(--ice-bright); }
.contact-qr-preview { background: rgba(7, 9, 10, .96); border: 1px solid rgba(183, 210, 212, .52); box-shadow: 0 20px 50px rgba(0, 0, 0, .42), 0 0 24px rgba(183, 210, 212, .12); opacity: 0; padding: 9px; pointer-events: none; position: absolute; right: 14px; top: 50%; transform: translate(8px, -50%) scale(.94); transition: opacity .2s ease, transform .2s ease; z-index: 8; }
.contact-qr-preview img { background: #fff; display: block; height: 154px; object-fit: contain; width: 154px; }
.copy-contact-button:focus-visible { z-index: 9; }
.contact-item:hover .contact-qr-preview, .contact-item:focus-within .contact-qr-preview { opacity: 1; transform: translate(0, -50%) scale(1); }.contact-decor { animation: decor-fade 9s ease-in-out infinite alternate; color: rgba(255, 255, 255, .18); font: 700 12px/1.2 var(--mono); letter-spacing: .06em; position: absolute; }.decor-left { bottom: 37px; left: 5%; }.decor-right { right: 5%; text-align: right; top: 40%; }
.works-more-toggle { align-items: center; background: rgba(7, 9, 10, .28); border: 0; border-bottom: 1px solid rgba(183, 210, 212, .32); color: var(--muted); cursor: pointer; display: flex; font: 10px var(--mono); gap: 14px; letter-spacing: .08em; margin: 44px auto 0; padding: 10px 2px 9px; transition: border-color .2s ease, color .2s ease, gap .2s ease; }
.works-more-toggle span { color: var(--ice); font-size: 16px; line-height: 1; }
.works-more-toggle:hover, .works-more-toggle:focus-visible { border-color: var(--ice); color: var(--ice); gap: 19px; outline: none; }
.footer {
  align-items: center;
  background: rgba(4, 7, 9, .72);
  border-top: 1px solid rgba(183, 210, 212, .32);
  box-shadow: 0 -16px 34px rgba(0, 0, 0, .18);
  color: rgba(242, 240, 233, .78);
  display: grid;
  font: 500 10px/1.4 var(--mono);
  gap: 18px;
  grid-template-columns: max-content minmax(0, 1fr) max-content max-content max-content;
  isolation: isolate;
  letter-spacing: .045em;
  padding: 20px clamp(24px, 5vw, 74px);
  position: relative;
  text-transform: uppercase;
  z-index: 25;
}
.footer::before {
  background: linear-gradient(90deg, transparent, rgba(183, 210, 212, .24), transparent);
  content: '';
  height: 1px;
  left: 10%;
  pointer-events: none;
  position: absolute;
  top: -1px;
  width: 36%;
  z-index: -1;
}
.footer span:first-child { color: var(--ice-bright); }
.footer span:nth-child(2) { color: var(--muted); }
.footer a {
  color: var(--ice-bright);
  position: relative;
  transition: color .2s ease, text-shadow .2s ease;
  z-index: 1;
}
.footer a:hover, .footer a:focus-visible {
  color: #fff;
  outline: none;
  text-shadow: 0 0 14px rgba(212, 232, 229, .58);
}
.admin-entry-link {
  border-left: 1px solid rgba(183, 210, 212, .24);
  color: var(--ice) !important;
  margin-left: 0;
  padding-left: 18px;
}
.admin-entry-link:hover, .admin-entry-link:focus-visible { color: #fff !important; }
.footer-icp { color: var(--muted) !important; text-decoration: none; }
.footer-icp:hover, .footer-icp:focus-visible { color: var(--ice) !important; }

@media (max-width: 800px) {
  .desktop-nav, .status-pill { display: none; }.menu-toggle { display: block; }.mobile-menu.is-open { display: block; }.section-grid { grid-template-columns: 1fr; }
  .audio-toggle { gap: 0; height: 34px; margin-left: auto; margin-right: 13px; padding: 0; width: 108px; }.audio-visualizer { height: 28px; left: 22px; width: 44px; }
  .hero { min-height: min(82svh, 650px); padding: 96px 24px 56px; }.hero-copy { grid-column: 1; }.hero-stage { bottom: 42px; height: 270px; min-height: 0; right: -4%; top: auto; width: 108%; }.brand-stage-mark { left: 50%; top: 50%; }.brand-stage-logo { height: clamp(124px, 31vw, 190px); width: clamp(124px, 31vw, 190px); }.hero-footline { bottom: 19px; width: calc(100% - 48px); }.hero-footline span:first-child { display: none; }.atmosphere-grid { background-size: 55px 55px; }.section-halo { height: 420px; right: -44%; width: 420px; }
  .manifesto, .tools-section { padding: 94px 24px 105px; }.about-layout { gap: 45px; grid-template-columns: 1fr; min-height: 0; }.about-copy { max-width: none; }.about-copy h2 { font-size: clamp(48px, 12vw, 76px); }.about-portrait { height: min(118vw, 560px); min-height: 390px; order: -1; }.about-principles { grid-template-columns: 1fr; margin-top: 47px; }.about-principles div { max-width: 250px; }.section-index { flex-direction: row; gap: 10px; margin-bottom: 47px; }
  .works-section { overflow-x: hidden; padding: 93px 24px 105px; }.works-heading { margin-bottom: 50px; }.works-heading > div, .works-summary { grid-column: 1; }.works-summary { grid-row: 2; margin-top: 27px; max-width: 100%; white-space: normal; }.project-list { grid-template-columns: minmax(0, 1fr); min-width: 0; }.project-card { min-width: 0; max-width: 100%; }.project-feature { grid-row: auto; }.project-visual { align-items: center; display: flex; height: 330px; justify-content: center; max-width: 100%; min-width: 0; width: 100%; }.project-visual { height: 260px; }.visual-image { background: #0b1114; max-width: 100%; min-width: 0; overflow: hidden; }.visual-image img { block-size: auto; box-sizing: border-box; display: block; flex: 0 1 auto; height: auto; inline-size: auto; margin: 0 auto; max-block-size: 100%; max-height: 100%; max-inline-size: 100%; max-width: 100%; min-height: 0; min-width: 0; object-fit: contain; object-position: center; width: auto; }.project-card:hover .visual-image img { transform: none; }.project-info { min-height: 185px; padding: 21px 19px 22px; }.project-info h3 { font-size: 19px; }.project-info p { padding-right: 0; }
  .tool-item { gap: 11px; grid-template-columns: 28px 1fr 28px; }.tool-desc { display: none; }.contact-section { min-height: 590px; padding: 93px 24px; }.contact-copy { max-width: 100%; white-space: normal; }.contact-links { grid-template-columns: 1fr; }.contact-note { grid-column: auto; }.copy-contact-button::after { left: auto; margin-left: 10px; position: relative; top: auto; transform: none; }.contact-qr-preview { bottom: 12px; right: 12px; top: auto; transform: translateY(8px) scale(.94); }.contact-qr-preview img { height: 128px; width: 128px; }.contact-item:hover .contact-qr-preview, .contact-item:focus-within .contact-qr-preview { transform: translateY(0) scale(1); }.decor-left, .decor-right { display: none; }.footer { gap: 13px 16px; grid-template-columns: 1fr max-content; padding: 18px 24px; }.footer span:nth-child(2) { grid-column: 1 / -1; grid-row: 2; order: initial; width: auto; }.footer .admin-entry-link { border-left: 0; grid-column: 1; grid-row: 3; margin-left: 0; padding-left: 0; }.footer a:last-child { grid-column: 2; grid-row: 3; }.footer .footer-icp { grid-column: 1 / -1; grid-row: 4; justify-self: start; }
}
@media (max-width: 480px) { h1 { font-size: clamp(49px, 15vw, 72px); }.hero { min-height: min(78svh, 580px); padding-top: 92px; }.hero-stage { bottom: 32px; height: 225px; }.brand-stage-mark { left: 50%; top: 50%; }.brand-stage-logo { height: 128px; width: 128px; }.hero-actions { align-items: flex-start; flex-direction: column; gap: 19px; }.contact-section h2 { font-size: 54px; } }

/* 跨页转场：入口与主站共享一个中心光源，以暗场显影完成接管。 */
.ai-entry {
  background: rgba(5, 8, 9, .52);
  backdrop-filter: blur(2px);
  opacity: 0;
  transform: none;
  transition: opacity .7s ease;
}
.ai-entry::before { display: none; }
.ai-entry-grid, .ai-entry-core { display: none; }
.ai-entry-particles { opacity: .18; }
.ai-entry-field {
  background: radial-gradient(circle, rgba(221, 242, 237, .24) 0, rgba(163, 205, 207, .08) 13%, rgba(92, 139, 157, .025) 30%, transparent 64%);
  border-radius: 50%;
  height: min(42vw, 500px);
  left: 50%;
  opacity: 0;
  pointer-events: none;
  position: absolute;
  top: 48%;
  transform: translate(-50%, -50%) scale(.78);
  transition: opacity .8s ease, transform 1.25s cubic-bezier(.16, 1, .3, 1);
  width: min(42vw, 500px);
}
.ai-entry-field::before {
  border: 1px solid rgba(185, 217, 219, .16);
  border-radius: 50%;
  content: '';
  inset: 34%;
  position: absolute;
}
.ai-entry-field::after {
  background: linear-gradient(90deg, transparent, rgba(218, 239, 235, .14), transparent);
  content: '';
  height: 1px;
  left: 18%;
  opacity: .65;
  position: absolute;
  top: 50%;
  width: 64%;
}
.ai-entry-aperture {
  border: 1px solid rgba(212, 232, 229, .2);
  border-radius: 50%;
  box-shadow: 0 0 28px rgba(183, 210, 212, .08), inset 0 0 22px rgba(183, 210, 212, .04);
  height: min(16vw, 190px);
  left: 50%;
  opacity: 0;
  pointer-events: none;
  position: absolute;
  top: 48%;
  transform: translate(-50%, -50%) scale(.8);
  transition: opacity .7s ease, transform 1.1s cubic-bezier(.16, 1, .3, 1);
  width: min(16vw, 190px);
}
.ai-entry-aperture::before, .ai-entry-aperture::after {
  border: 1px solid rgba(139, 170, 192, .13);
  border-radius: 50%;
  content: '';
  inset: 16%;
  position: absolute;
  transform: rotate(27deg) scaleX(1.45);
}
.ai-entry-aperture::after { inset: 27%; opacity: .55; transform: rotate(-41deg) scaleX(1.16); }
.ai-entry-label { display: none; }
body.is-arriving { overflow: hidden; }
body.is-arriving .site-shell {
  filter: blur(7px) brightness(.72);
  opacity: .22;
  transform: scale(1.008);
  transition: filter .85s ease, opacity .85s ease, transform .85s ease;
}
body.is-arriving .ai-entry { opacity: 1; pointer-events: none; }
body.is-arriving .ai-entry-field { opacity: .72; transform: translate(-50%, -50%) scale(1); }
body.is-arriving .ai-entry-aperture { opacity: .42; transform: translate(-50%, -50%) scale(1); }
body.is-arriving.is-arrival-revealing .site-shell {
  filter: blur(0) brightness(1);
  opacity: 1;
  transform: scale(1);
  transition: filter .85s ease, opacity .85s ease, transform .85s ease;
}
body.is-arriving.is-arrival-revealing .ai-entry {
  opacity: 0;
  transition: opacity .65s ease .18s;
}
body.is-arriving.is-arrival-revealing .ai-entry-field {
  opacity: .08;
  transform: translate(-50%, -50%) scale(1.12);
}
body.is-arriving.is-arrival-revealing .ai-entry-aperture {
  opacity: 0;
  transform: translate(-50%, -50%) scale(1.16);
}
body.is-arriving .brand-stage-mark { opacity: .28; }
body.is-arriving.is-arrival-revealing .brand-stage-mark {
  opacity: 1;
  transition: opacity .7s ease .18s;
}
@media (prefers-reduced-motion: reduce) {
  .ai-entry, .ai-entry-field, .ai-entry-aperture { transition: none; }
  .ai-entry-particles { opacity: .08; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cursor-light { display: none; }
  *, *::before, *::after { animation: none !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .manifesto-content { opacity: 1; transform: none; }
  .about-portrait { min-height: 390px; }
  .about-portrait::before, .about-portrait-glow { display: none; }
  .about-world-seal { display: none; }
  .hero-copy, .hero-stage { opacity: 1; transform: none; }
  .hero-particles { opacity: .34; }
  .brand-stage-nebula, .brand-stage-beam { opacity: .55; }
  .brand-stage-orbit { opacity: .62; }
  .brand-particle-field { opacity: .65; }
  .ai-entry { transition: none; }
  .ai-entry-field, .ai-entry-aperture { transition: none; }
}

@media (prefers-reduced-motion: reduce) {
  .audio-toggle[data-audio-state="playing"] .audio-visualizer i {
    animation: none;
  }
}

.video-modal[hidden] { display: none; }
.video-modal {
  align-items: center;
  display: flex;
  inset: 0;
  justify-content: center;
  padding: clamp(18px, 4vw, 60px);
  position: fixed;
  z-index: 80;
}
.video-modal-backdrop {
  background: rgba(1, 4, 6, .86);
  backdrop-filter: blur(14px);
  inset: 0;
  position: absolute;
}
.video-modal-dialog {
  background: #0b1114;
  border: 1px solid rgba(183, 210, 212, .28);
  box-shadow: 0 24px 90px rgba(0, 0, 0, .55), 0 0 60px rgba(105, 145, 166, .12);
  max-width: 1020px;
  padding: clamp(18px, 2.4vw, 30px);
  position: relative;
  width: min(100%, 1020px);
  z-index: 1;
}
.video-modal-header {
  align-items: flex-start;
  display: flex;
  justify-content: space-between;
  margin-bottom: 18px;
}
.video-modal-kicker {
  color: var(--ice);
  display: block;
  font: 9px var(--mono);
  letter-spacing: .14em;
  margin-bottom: 9px;
}
.video-modal-header h2 {
  font-size: clamp(18px, 2.4vw, 28px);
  letter-spacing: -.04em;
  line-height: 1.25;
  margin: 0;
}
.video-modal-close {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  cursor: pointer;
  font-size: 25px;
  height: 38px;
  line-height: 1;
  margin-left: 16px;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
  width: 38px;
}
.video-modal-close:hover,
.video-modal-close:focus-visible {
  background: var(--ice);
  border-color: var(--ice);
  color: #071012;
  outline: none;
}
.video-modal-frame {
  aspect-ratio: 16 / 7;
  max-height: min(58vh, 500px);
  background: #020405;
  border: 1px solid var(--line-soft);
  overflow: hidden;
}
.video-modal-frame iframe {
  border: 0;
  display: block;
  height: 100%;
  width: 100%;
}
.video-modal-external {
  color: var(--muted);
  display: inline-block;
  font: 10px var(--mono);
  margin-top: 16px;
  transition: color .2s ease;
}
.video-modal-external:hover { color: var(--ice); }
body.video-modal-open { overflow: hidden; }
.video-link { cursor: pointer; }
.video-visual-trigger { cursor: pointer; }
.video-visual-trigger:focus-visible { outline: 1px solid var(--ice); outline-offset: -4px; }
@media (max-width: 640px) {
  .video-modal { padding: 14px; }
  .video-modal-dialog { padding: 15px; }
  .video-modal-header { margin-bottom: 13px; }
  .video-modal-close { height: 34px; width: 34px; }
}