@charset "UTF-8";

:root { color-scheme: dark; --ink: #f2f5f8; --muted: #b6c5d6; --accent: #d7e7f2; --line: rgba(176,199,220,.25); --side: clamp(26px, 5.5vw, 96px); }
* { box-sizing: border-box; }
html { background: #060e1b; scroll-behavior: smooth; scrollbar-color: #65809b #060e1b; }
body { margin: 0; color: var(--ink); font-family: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif; -webkit-font-smoothing: antialiased; }
html.is-demo-loading, .is-demo-loading body { overflow: hidden; }
.is-demo-loading body > :not(.demo-loader) { visibility: hidden; }
.is-demo-loading body .chapter .chapter-panel { visibility: hidden; }
.demo-loader { display: none; }
.is-demo-loading .demo-loader:not([hidden]) { position: fixed; z-index: 100; inset: 0; display: grid; place-items: center; overflow: hidden; background: radial-gradient(circle at 50% 50%, #b6c5d610, transparent 27%), #060e1b; color: var(--ink); }
.demo-loader::before { content: ""; position: absolute; inset: 0; opacity: .28; background-image: linear-gradient(#b6c5d60a 1px, transparent 1px), linear-gradient(90deg, #b6c5d60a 1px, transparent 1px); background-size: 64px 64px; mask-image: radial-gradient(circle, #000, transparent 70%); }
.demo-loader-brand { position: absolute; top: 38px; left: 50%; display: flex; align-items: center; gap: 12px; width: max-content; max-width: calc(100% - 40px); color: var(--muted); font: 600 .66rem/1.6 system-ui, sans-serif; letter-spacing: .24em; transform: translateX(-50%); }
.demo-loader-brand > span:first-child { color: var(--accent); font-size: 24px; }
.demo-loader-mark { position: relative; width: 184px; height: 184px; }
.demo-loader-mark span { position: absolute; inset: 0; border: 1px solid #b6c5d652; transform: rotate(45deg); animation: demo-loader-spin 4.2s linear infinite; }
.demo-loader-mark span:nth-child(2) { inset: 24px; border-color: #d7e7f26b; animation-direction: reverse; animation-duration: 3.4s; }
.demo-loader-mark span:nth-child(3) { inset: 52px; border-color: #f2f5f8bf; box-shadow: 0 0 42px #b6c5d626; animation-duration: 2.6s; }
@keyframes demo-loader-spin { to { transform: rotate(405deg); } }
.demo-loader-meta { position: absolute; inset: 0; color: var(--muted); font: 500 11px/1.8 system-ui, sans-serif; letter-spacing: .2em; pointer-events: none; }
.demo-loader-meta > span { position: absolute; bottom: 78px; left: 24px; right: 24px; text-align: center; }
.demo-loader-meta strong { position: absolute; top: 50%; left: 50%; color: var(--ink); font: 300 2.35rem/.8 Georgia, serif; font-variant-numeric: tabular-nums; letter-spacing: -.05em; transform: translate(-50%, -50%); }
.demo-loader-meta strong::after { content: "%"; margin-left: 3px; font: 500 .55rem/1 system-ui, sans-serif; letter-spacing: .04em; }
.demo-loader progress { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.demo-loader-skip { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); white-space: nowrap; background: none; border: 0; border-bottom: 1px solid var(--line); padding: 12px 0; color: var(--muted); font-size: 12px; }
.demo-loader-skip span { padding-left: 20px; }
.is-demo-loading #living-form { transition: none; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; cursor: pointer; }
button[hidden] { display: none; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 7px; }
button, a { touch-action: manipulation; }
.skip-link { position: fixed; z-index: 30; top: 12px; left: 12px; padding: 14px; color: #060e1b; background: var(--ink); transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.atmosphere { position: fixed; inset: 0; pointer-events: none; overflow: hidden; background: #060e1b; }
.ambient-light { position: absolute; inset: -15%; background: radial-gradient(ellipse at 68% 44%, rgba(158,134,78,.2), transparent 48%), radial-gradient(ellipse at 18% 90%, rgba(96,110,97,.13), transparent 50%); }
#living-form { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 1s; }
.has-webgl #living-form { opacity: 1; }
.scene-fallback { position: absolute; width: 100%; height: 100%; inset: 0; object-fit: cover; opacity: 1; }
.has-webgl .scene-fallback { display: none; }
.scene-shade { position: absolute; inset: 0; background: linear-gradient(90deg, #060e1b33, transparent 49%), linear-gradient(0deg, #060e1bb3, transparent 20%, transparent 88%, #060e1b33); }
main { position: relative; z-index: 2; }
.chapter { position: relative; min-height: 100svh; scroll-margin-top: 0; }
.chapter-panel { min-height: 100svh; position: relative; display: flex; align-items: center; padding: 130px var(--side) 145px; overflow: clip; }
.chapter-copy { position: relative; width: min(620px, 49vw); text-shadow: 0 2px 25px #03091399; }
.panel-right { justify-content: flex-end; }
.panel-right .chapter-copy { width: min(550px, 46vw); isolation: isolate; }
.panel-right .chapter-copy::before { content: ""; position: absolute; z-index: -1; inset: -90px -9vw -90px -120px; background: linear-gradient(90deg, #060e1b00, #060e1b99 18%, #060e1bc2); mask-image: linear-gradient(0deg, transparent, #000 20%, #000 80%, transparent); pointer-events: none; }
.panel-right .chapter-description, .panel-right .industry-description { position: relative; isolation: isolate; }
.panel-right .chapter-description::before, .panel-right .industry-description::before { content: ""; position: absolute; z-index: -1; inset: -20px 0; background: radial-gradient(ellipse, #060e1b99, #060e1b00 75%); pointer-events: none; }
.panel-center { justify-content: center; text-align: center; }
.panel-center .chapter-copy { width: min(850px, 90vw); }
.eyebrow { font-size: 12px; letter-spacing: .2em; line-height: 1.8; font-weight: 500; margin: 0 0 29px; color: var(--muted); }
.status-dot, .caption-dot { display: inline-block; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; margin-right: 12px; vertical-align: 2px; box-shadow: 0 0 16px #e2c19555; }
h1, h2, p { margin-top: 0; }
h1 { font-size: clamp(56px, min(6.4vw, 10.5svh), 92px); line-height: 1.13; font-weight: 450; letter-spacing: -.065em; margin-bottom: 32px; }
h2 { font-size: clamp(44px, 4.5vw, 76px); line-height: 1.22; font-weight: 450; letter-spacing: -.055em; margin-bottom: 28px; }
.serif-word { font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif; font-weight: 400; color: var(--accent); }
.chapter-description { font-size: clamp(15px, 1.22vw, 18px); line-height: 1.95; color: var(--muted); letter-spacing: .015em; margin-bottom: 30px; }
.text-link { display: inline-flex; align-items: center; gap: 38px; font-size: 15px; }
.circle-arrow { border: 1px solid #879caf; width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; transition: transform .25s, border-color .25s; }
.text-link:hover .circle-arrow { transform: translateY(4px); border-color: var(--accent); }
.object-caption { position: absolute; left: 66%; bottom: 24%; display: flex; align-items: flex-start; font-size: 10px; letter-spacing: .13em; color: var(--muted); }
.object-caption small { display: block; font-size: 12px; letter-spacing: .08em; margin-top: 9px; }
.caption-dot { margin-top: 2px; width: 4px; height: 4px; }
.hero-bottom { position: absolute; left: var(--side); right: var(--side); bottom: 122px; display: flex; justify-content: space-between; align-items: flex-end; font-size: 13px; letter-spacing: .08em; color: var(--muted); }
.hero-bottom small { display: block; font-size: 10px; letter-spacing: .15em; color: var(--muted); margin-top: 8px; }
.scroll-invitation { display: flex; align-items: center; gap: 27px; }
.scroll-invitation i { font-style: normal; font-size: 24px; }
.detail-line { display: flex; gap: 0; color: var(--muted); font-size: 13px; }
.detail-line span { padding: 0 17px; border-right: 1px solid var(--line); }
.detail-line span:first-child { padding-left: 0; }
.detail-line span:last-child { border-right: none; }
.scene-annotation { position: absolute; bottom: 24%; width: 260px; }
.annotation-left { left: var(--side); }
.annotation-right { right: var(--side); }
.annotation-index { display: block; font-size: 10px; letter-spacing: .16em; color: var(--muted); margin-bottom: 16px; }
.scene-annotation p { font-size: 14px; line-height: 1.8; letter-spacing: .08em; color: var(--muted); margin-bottom: 22px; }
.annotation-rule { height: 1px; width: 150px; background: linear-gradient(90deg, #6394a080, #6394a000); }
.workflow { display: flex; align-items: center; gap: 15px; border-top: 1px solid var(--line); padding-top: 23px; font-size: 14px; }
.workflow b { color: var(--accent); font-weight: 400; font-size: 18px; }
.industry-picker { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px 16px; margin-top: 24px; }
.industry-picker[hidden] { display: none; }
.industry-picker button { padding: 9px 0 13px; font-size: 13px; white-space: nowrap; background: none; border: 0; border-bottom: 1px solid transparent; color: var(--muted); text-align: left; }
.industry-picker button[aria-pressed="true"] { color: var(--accent); border-color: var(--accent); }
.industry-result { margin-top: 22px; }
.industry-result h3 { margin: 0 0 10px; font-size: 16px; font-weight: 500; }
.industry-description { min-height: 3.8em; max-width: 470px; margin: 0; font-size: 14px; line-height: 1.9; color: var(--muted); }
.chapter-industries .chapter-panel { padding-top: 112px; padding-bottom: 115px; }
.chapter-industries .eyebrow { margin-bottom: 20px; }
.chapter-industries h2 { margin-bottom: 20px; }
.chapter-industries .chapter-description { margin-bottom: 0; }
.chapter-final h2 { font-size: clamp(60px, 6.5vw, 108px); }
.chapter-final .eyebrow { letter-spacing: .25em; }
.final-actions { display: flex; justify-content: center; align-items: center; gap: 29px; margin-top: 35px; font-size: 14px; }
.primary-cta { display: inline-flex; gap: 42px; align-items: center; border-radius: 50px; background: var(--ink); color: #060e1b; padding: 20px 25px; transition: background .2s; }
.primary-cta:hover { background: var(--accent); }
.contact-link { padding: 17px 0; border-bottom: 1px solid var(--line); }
.contact-link span { margin-left: 17px; }
.demo-footer { position: absolute; bottom: 115px; left: var(--side); right: var(--side); display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; align-items: center; font-size: 12px; color: var(--muted); }
.journey-controls { position: fixed; z-index: 20; left: var(--side); right: var(--side); bottom: 29px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.chapter-nav { width: min(570px, 65vw); display: flex; gap: 25px; }
.chapter-nav a { position: relative; flex: 1; padding: 12px 0 16px; font-size: 12px; color: var(--muted); display: flex; gap: 10px; white-space: nowrap; }
.chapter-nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; background: var(--line); height: 1px; }
.chapter-nav b { font-weight: 400; }
.chapter-nav i { position: absolute; bottom: 0; width: 100%; height: 1px; background: var(--accent); transform: scaleX(0); transform-origin: left; z-index: 1; }
.chapter-nav a[aria-current="step"] { color: var(--ink); }
.chapter-nav a[aria-current="step"] i { transform: scaleX(1); }
.motion-toggle { display: flex; align-items: center; gap: 11px; padding: 10px 0; min-height: 44px; border: none; background: none; font-size: 12px; color: var(--muted); }
.motion-symbol { font-size: 13px; }
.is-enhanced .chapter { height: 145svh; }
.is-enhanced .chapter-final { height: 100svh; }
.is-enhanced .chapter-panel { position: fixed; inset: 0; min-height: 0; height: 100svh; opacity: 0; visibility: hidden; pointer-events: none; will-change: opacity, transform; }
.is-enhanced .chapter-panel.is-visible { visibility: visible; }
.is-enhanced .chapter-panel.is-current { pointer-events: auto; }
.is-enhanced .chapter-panel.is-current .chapter-copy { position: relative; z-index: 1; }
body:not(.is-enhanced) .chapter { border-bottom: 1px solid #aac4c514; }
body:not(.is-enhanced) .journey-controls { background: #0a1625e8; padding: 4px 14px; border: 1px solid #b6c5d633; border-radius: 10px; }
body:not(.is-enhanced) .scene-annotation { display: none; }
body:not(.is-enhanced) .chapter:not(.chapter-hero) .chapter-panel { background: transparent; }

@media (min-width: 1600px) { .chapter-copy { margin-left: 3vw; } .panel-right .chapter-copy { margin: 0 3vw 0 0; } .panel-center .chapter-copy { margin: 0; } }
@media (max-width: 1100px) { .scene-annotation { width: 190px; } .chapter-description { font-size: 16px; } }
@media (max-width: 760px), (max-height: 560px) {
  :root { --side: 25px; }
  .chapter, .is-enhanced .chapter { min-height: 110svh; height: auto; }
  .chapter-hero, .is-enhanced .chapter-hero { min-height: 100svh; }
  .chapter-panel, .is-enhanced .chapter-panel { position: relative; inset: auto; min-height: 110svh; height: auto; opacity: 1 !important; visibility: visible; transform: none !important; pointer-events: auto; padding: 160px var(--side) 130px; align-items: center; }
  .chapter-hero .chapter-panel { min-height: 100svh; padding-top: 27svh; align-items: center; }
  .chapter-copy, .panel-right .chapter-copy, .panel-center .chapter-copy { width: 100%; max-width: 550px; }
  .panel-right .chapter-copy::before { display: none; }
  .panel-right, .panel-center { justify-content: flex-start; text-align: left; }
  h1 { font-size: clamp(60px, 15vw, 90px); margin-bottom: 24px; }
  h2 { font-size: clamp(35px, 8.7vw, 58px); line-height: 1.32; }
  .eyebrow { font-size: 11px; margin-bottom: 22px; }
  .chapter-description { font-size: 15px; line-height: 2; }
  .chapter-description br { display: none; }
  .scene-shade { background: linear-gradient(90deg, #060e1b52, transparent 70%), linear-gradient(0deg, #060e1bcc, #060e1b2e 45%, transparent 74%); }
  #living-form, .scene-fallback { top: 68px; height: 40svh; mask-image: linear-gradient(0deg, transparent, #000 22%, #000 90%, transparent); }
  .scene-fallback { object-position: right center; }
  .scene-annotation, .object-caption, .hero-bottom > span:first-child { display: none; }
  .hero-bottom { bottom: 85px; font-size: 12px; }
  .scroll-invitation { gap: 20px; }
  .journey-controls { bottom: 14px; left: 18px; right: 18px; padding: 4px 10px; gap: 10px; border-radius: 8px; background: #0a1625e8; backdrop-filter: blur(12px); }
  .chapter-nav { width: auto; flex: 1; gap: 6px; }
  .chapter-nav a { font-size: 11px; padding: 12px 0; justify-content: center; }
  .chapter-nav a > span { display: none; }
  .motion-toggle { font-size: 11px; gap: 4px; }
  .motion-symbol { display: none; }
  .detail-line { font-size: 12px; flex-wrap: wrap; row-gap: 12px; }
  .workflow { font-size: 12px; gap: 12px; }
  .industry-picker { grid-template-columns: repeat(2, 1fr); gap: 4px 22px; }
  .chapter-industries .chapter-panel { padding-top: 160px; padding-bottom: 130px; }
  .industry-picker button { font-size: 13px; }
  .chapter-final h2 { font-size: clamp(48px, 12vw, 76px); }
  .final-actions { align-items: flex-start; flex-direction: column; gap: 12px; }
  .primary-cta { gap: 28px; padding: 18px 23px; }
  .demo-footer { bottom: 93px; left: var(--side); right: var(--side); gap: 20px; font-size: 10px; }
  body:not(.is-enhanced) .chapter:not(.chapter-hero) .chapter-panel { background: transparent; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
.chapter-description { font-size: clamp(16px, 1.22vw, 18px); }
.object-caption, .hero-bottom small, .annotation-index, .demo-footer { font-size: 12px; }
@media (max-width: 760px), (max-height: 560px) {
  .has-webgl #living-form { opacity: .64; }
  h1 { font-size: clamp(34px, 10.6vw, 72px); }
  h2 { font-size: clamp(30px, 8.7vw, 58px); }
  .chapter-final h2 { font-size: clamp(36px, 10vw, 66px); }
  .eyebrow, .chapter-nav a, .motion-toggle, .demo-footer { font-size: 12px; }
}
html[data-reduced-motion="true"] { scroll-behavior: auto; }
html[data-reduced-motion="true"] .demo-loader-mark span { animation: none; }
.ambient-light { display: none; }
.scene-fallback { width: 100%; right: 0; object-fit: cover; opacity: 1; mix-blend-mode: normal; filter: none; }
.has-webgl #living-form { opacity: 1; }
.is-enhanced.is-finale .scene-shade { background: radial-gradient(ellipse at 50% 50%, #060e1b70, transparent 66%), linear-gradient(0deg, #060e1bcf, transparent 30%); }
.chapter-hero .chapter-panel { align-items: flex-end; padding-bottom: 175px; }
.object-caption { left: auto; right: var(--side); bottom: 22%; max-width: 290px; font-size: 0; }
.object-caption small { font-size: 14px; line-height: 1.8; letter-spacing: .02em; }
.chapter-nav a { opacity: .88; }
.chapter-nav a[aria-current="step"] { opacity: 1; }
.scene-annotation { opacity: .8; }
.is-enhanced .scene-annotation { display: none; }
@media (min-width: 761px) and (min-height: 561px) and (max-height: 700px) {
  .chapter-hero .chapter-panel { padding-bottom: 120px; }
  .hero-bottom, .object-caption { display: none; }
  .chapter-industries h2 { font-size: clamp(32px, 5.5svh, 46px); }
  .chapter-industries .eyebrow { margin-bottom: 14px; }
  .chapter-industries .chapter-description { font-size: 14px; line-height: 1.8; }
  .chapter-industries .industry-picker, .chapter-industries .industry-result { margin-top: 16px; }
  .chapter-final h2 { font-size: clamp(42px, 8svh, 64px); }
  .chapter-final .chapter-description { font-size: 14px; line-height: 1.8; margin-bottom: 20px; }
  .chapter-final .demo-footer { bottom: 88px; }
}
@media (max-width: 760px), (max-height: 560px) {
  .chapter-hero .chapter-panel { padding-top: 23svh; padding-bottom: 175px; align-items: flex-end; }
  .chapter-copy { text-shadow: 0 1px 24px #03091399; }
}

html[data-demo-theme="light"] { color-scheme: light; --ink: #102b3a; --muted: #526b78; --accent: #527f93; --line: rgba(54,96,115,.2); background: #f8fafc; scrollbar-color: #83a1af #f0f5f8; }
[data-demo-theme="light"] body { color: var(--ink); }
[data-demo-theme="light"] .atmosphere { background: #f8fafc; }
[data-demo-theme="light"] .chapter-copy { text-shadow: none; }
[data-demo-theme="light"] .panel-right .chapter-copy::before { background: linear-gradient(90deg, #f8fafc00, #f8fafc80 18%, #f8fafcc2); }
[data-demo-theme="light"] .panel-right .chapter-description::before,
[data-demo-theme="light"] .panel-right .industry-description::before { display: none; }
[data-demo-theme="light"] .scene-shade { background: linear-gradient(0deg, #f8fafc66, transparent 20%, transparent 88%, #f8fafc33); }
[data-demo-theme="light"] .is-enhanced.is-finale .scene-shade { background: linear-gradient(90deg, #f8fafc33, #f8fafc80 45%, #f8fafc1a); }
[data-demo-theme="light"] .status-dot, [data-demo-theme="light"] .caption-dot { box-shadow: 0 0 16px #769cad33; }
[data-demo-theme="light"] .circle-arrow { border-color: #527f9366; }
[data-demo-theme="light"] .primary-cta { background: var(--ink); color: #fff; }
[data-demo-theme="light"] .primary-cta:hover { background: #315b70; }
[data-demo-theme="light"] .skip-link { background: var(--ink); color: #fff; }
[data-demo-theme="light"] body:not(.is-enhanced) .chapter { border-bottom-color: #527f9314; }
[data-demo-theme="light"] body:not(.is-enhanced) .journey-controls { background: #f8fafced; border-color: var(--line); }
[data-demo-theme="light"].is-demo-loading .demo-loader:not([hidden]) { background: radial-gradient(circle at 54% 48%, rgba(116,166,186,.08), transparent 28%), #fafcfd; }
[data-demo-theme="light"] .demo-loader::before { opacity: 0; }
[data-demo-theme="light"] .demo-loader-brand, [data-demo-theme="light"] .demo-loader-meta { color: #607986; }
[data-demo-theme="light"] .demo-loader-mark span { border-color: rgba(82,127,147,.22); border-radius: 50%; }
[data-demo-theme="light"] .demo-loader-mark span:nth-child(2) { border-color: rgba(111,151,168,.32); }
[data-demo-theme="light"] .demo-loader-mark span:nth-child(3) { border-color: rgba(82,127,147,.58); box-shadow: 0 0 42px rgba(96,149,169,.1); }
[data-demo-theme="light"] .demo-loader-meta strong { color: #527f93; }
@media (max-width: 760px), (max-height: 560px) {
  [data-demo-theme="light"] .scene-shade { background: linear-gradient(0deg, #f8fafc, transparent 65%); }
  [data-demo-theme="light"] .scene-fallback { object-position: 82% center; }
  [data-demo-theme="light"] .journey-controls { background: #f8fafced; }
}
@media print {
  .atmosphere, .site-nav, .journey-controls, .hero-bottom, .scene-annotation, .object-caption { display: none; }
  body { color: #10120f; background: white; }
  .chapter, .is-enhanced .chapter { height: auto; min-height: 0; break-inside: avoid; }
  .chapter-panel, .is-enhanced .chapter-panel { position: relative; height: auto; min-height: 0; padding: 25px; opacity: 1 !important; visibility: visible; transform: none !important; }
  .chapter-copy, .panel-right .chapter-copy, .panel-center .chapter-copy { width: 100%; }
  h1, h2, .chapter-final h2 { font-size: 36px; }
  .serif-word, .eyebrow, .chapter-description { color: #333; }
  .demo-footer { position: relative; bottom: auto; }
}