@font-face {
  font-family: 'Manrope';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url(./assets/fonts/manrope.woff2) format('woff2');
  unicode-range: U+20-7e;
}

:root {
  --ink: #16243a;
  --blue: #2465e7;
  --muted: #65748a;
  --line: #e5ebf3;
  --font: 'Manrope', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 30px; }
body { margin: 0; font-family: var(--font); font-weight: 400; color: var(--ink); background: #fff; line-height: 1.7; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
::selection { background: #dbe9ff; color: #173969; }
a { color: inherit; text-decoration: none; -webkit-tap-highlight-color: transparent; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--blue); outline-offset: 5px; }
svg { display: block; }
.container { width: min(1240px, calc(100% - 96px)); margin-inline: auto; }
.header { background: #ffffffef; border-bottom: 1px solid #e7edf4; position: relative; z-index: 5; }
.header-inner { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; white-space: nowrap; }
.brand strong { font-size: 20px; font-weight: 600; letter-spacing: -.025em; }
.brand-mark { position: relative; display: grid; place-items: center; width: 38px; height: 40px; border-radius: 12px; background: linear-gradient(145deg, #2975f4, #1855df); color: #fff; font-size: 23px; font-weight: 700; box-shadow: 0 5px 14px #2465e722, inset 0 1px 0 #ffffff35; }
.brand-mark i { position: absolute; right: 6px; top: 7px; width: 4px; height: 4px; border-radius: 50%; background: #d1e1ff; }
.desktop-nav { display: flex; gap: 30px; color: #5e6d84; font-size: 14px; align-items: center; white-space: nowrap; }
.desktop-nav a, .sign-in, .footer nav a { transition: color .18s; }
.desktop-nav a:hover, .sign-in:hover, .footer a:hover { color: var(--blue); }
.header-actions { display: flex; gap: 25px; align-items: center; font-size: 14px; }
.sign-in { color: #536178; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 22px; min-height: 52px; padding: 13px 24px; font-size: 14px; font-weight: 600; line-height: 1.6; border: 1px solid transparent; border-radius: 12px; white-space: nowrap; transition: transform .2s, box-shadow .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.button span { font-size: 20px; font-weight: 400; line-height: 1; transition: transform .2s; }
.button:hover span { transform: translate(2px, -1px); }
.button-dark { background: #17243a; color: #fff; box-shadow: 0 3px 7px #182c4510; }
.button-dark:hover { background: #243853; }
.button-blue { background: var(--blue); color: #fff; box-shadow: 0 8px 19px #2465e724, inset 0 1px 0 #ffffff18; }
.button-blue:hover { box-shadow: 0 10px 24px #2465e732; background: #1d5cdb; }
.button-white { background: #ffffffdd; border-color: #dce5f0; color: #334660; box-shadow: 0 2px 3px #192d4504; }
.button-white:hover { background: #fff; box-shadow: 0 6px 16px #182c4510; }
.button-small { min-height: 42px; padding: 9px 17px; font-size: 13px; border-radius: 10px; gap: 15px; }
.mobile-menu { display: none; }

.hero { position: relative; overflow: hidden; background: radial-gradient(ellipse 50% 80% at 5% 40%, #ecf3ff 0, transparent 95%), radial-gradient(ellipse 42% 72% at 83% 40%, #e8eff7 0, transparent 90%), linear-gradient(110deg, #f9fbfe, #f7f9fc 70%, #f6f8fb); }
.hero-inner { display: grid; grid-template-columns: 47% 53%; align-items: center; min-height: 660px; position: relative; }
.hero-copy { padding: 35px 0 48px; position: relative; z-index: 2; }
.announcement { display: inline-flex; gap: 9px; align-items: center; max-width: 100%; padding: 7px 13px; margin-bottom: 32px; border: 1px solid #d8e5f7; border-radius: 24px; background: #ffffffbf; color: #4a668c; font-size: 12px; font-weight: 500; line-height: 1.7; white-space: nowrap; box-shadow: 0 2px 5px #2f5e9210; transition: border-color .2s, background .2s; }
.announcement:hover { border-color: #a8c6f3; background: #fff; }
.announcement-dot { flex: 0 0 5px; width: 5px; height: 5px; background: #3177e5; border-radius: 50%; box-shadow: 0 0 0 3px #edf3ff; }
.announcement-separator { color: #b0bfd3; margin-inline: 1px; }
.eyebrow { font-size: 11px; font-weight: 600; letter-spacing: .12em; line-height: 1.6; color: #547297; margin: 0 0 18px; }
.hero h1 { font-size: clamp(48px, 4.8vw, 66px); letter-spacing: -.025em; line-height: 1.27; font-weight: 600; margin: 0 0 25px; white-space: nowrap; }
.ai-word { color: var(--blue); font-weight: 700; letter-spacing: -.065em; }
.title-dot { color: #c57655; padding-left: 2px; }
.hero-lead { font-size: 16px; line-height: 1.95; letter-spacing: .012em; color: #62728a; margin: 0 0 32px; }
.hero-actions { display: flex; gap: 12px; }
.hero-points { display: flex; gap: 22px; flex-wrap: wrap; color: #687c98; font-size: 12px; margin-top: 26px; }
.hero-points span { display: flex; align-items: center; gap: 7px; white-space: nowrap; }
.hero-points i { font-style: normal; color: #3f77c0; font-size: 12px; }
.hero-art { height: 625px; min-width: 0; position: relative; isolation: isolate; margin-right: -24px; }
.art-halo { position: absolute; inset: 8% 1% 16%; border-radius: 50%; background: radial-gradient(ellipse, #ffffff77 0, #ffffff1a 62%, transparent 76%); z-index: -1; }
.art-caption { position: absolute; top: 20px; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 10px; white-space: nowrap; font-size: 11px; color: #7185a0; letter-spacing: .055em; }
.caption-line { width: 20px; height: 1px; background: #9cb1cb; }
.scene { position: absolute; inset: 34px -20px 42px; z-index: 1; touch-action: none; }
.scene-poster { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; pointer-events: none; transition: opacity .18s; }
.experience[data-render-state=ready] .scene-poster { opacity: 0; visibility: hidden; }
.scene canvas { position: relative; opacity: 0; }
.experience[data-render-state=ready] .scene canvas { opacity: 1; }
.scene canvas { display: block; width: 100%; height: 100%; outline: none; touch-action: none; }
.scene canvas:focus-visible { outline: 2px solid var(--blue); outline-offset: -12px; border-radius: 24px; }
.art-bottom { position: absolute; left: 5%; right: 4%; bottom: 16px; display: flex; justify-content: space-between; gap: 14px; color: #697e9b; font-size: 11px; z-index: 2; pointer-events: none; }
.drag-hint { display: flex; align-items: center; gap: 7px; white-space: nowrap; }
.drag-hint svg { width: 16px; height: 16px; }
.loading { position: absolute; top: 46%; left: 50%; transform: translate(-50%, -50%); display: flex; align-items: center; gap: 10px; color: #617794; font-size: 13px; white-space: nowrap; z-index: 2; }
.loading span { width: 15px; height: 15px; border: 1px solid #8e9cac; border-right-color: transparent; border-radius: 50%; animation: spin 1s linear infinite; }
.loading { top: auto; bottom: 48px; padding: 4px 10px; border-radius: 20px; background: #ffffffbd; font-size: 11px; }
.loading[hidden], .fallback[hidden] { display: none; }
.fallback { position: absolute; inset: 30% 10% auto; text-align: center; z-index: 3; color: #66788f; line-height: 1.8; font-size: 14px; }
.experience[data-render-state=error] .loading { display: none; }
.hero-footer { border-top: 1px solid #dce5f1; display: flex; align-items: center; justify-content: space-between; min-height: 60px; font-size: 12px; color: #7589a5; }
.hero-footer a { color: #527398; display: flex; align-items: center; gap: 16px; }
.hero-footer a span { font-size: 17px; }

.section { padding-block: 92px; }
.section-heading { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.section-heading .eyebrow { margin-bottom: 17px; color: var(--blue); letter-spacing: .16em; }
.section h2, .closing h2 { font-size: 40px; font-weight: 600; line-height: 1.45; letter-spacing: -.035em; margin: 0; }
.section-heading>p:last-child, .catalog-inner>div>p:not(.eyebrow) { font-size: 15px; color: var(--muted); line-height: 1.9; margin: 20px 0 0; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature { position: relative; display: flex; flex-direction: column; padding: 30px; border: 1px solid #e1e8f2; border-radius: 20px; background: linear-gradient(145deg, #fbfcff, #fff 75%); min-width: 0; transition: border-color .2s, box-shadow .2s; }
.feature:hover { border-color: #c3d5ee; box-shadow: 0 10px 30px #1f4a7a08; }
.feature-number { font-size: 11px; letter-spacing: .05em; color: #7284a0; }
.feature-icon { display: grid; place-items: center; width: 52px; height: 52px; color: #3a73c8; background: #edf3fc; border: 1px solid #e4edf9; border-radius: 15px; margin: 26px 0 24px; }
.feature-icon svg { width: 26px; height: 26px; }
.feature h3 { font-size: 22px; margin: 0 0 15px; font-weight: 600; letter-spacing: -.025em; }
.feature p { font-size: 14px; color: var(--muted); line-height: 1.95; margin: 0 0 27px; }
.feature a { font-size: 12px; color: #426795; display: flex; align-items: center; gap: 18px; margin-top: auto; font-weight: 500; }
.feature a:hover { color: var(--blue); }
.catalog { background: #f6f8fc; border-block: 1px solid #e9eef6; }
.catalog-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.catalog-inner>div>.button { margin-top: 30px; }
.catalog-inner .eyebrow { color: var(--blue); margin-bottom: 18px; }
.catalog-card { position: relative; overflow: hidden; padding: 36px; border: 1px solid #dce6f5; border-radius: 24px; background: linear-gradient(135deg, #fff, #eef4fe); box-shadow: 0 10px 30px #2c4d7609; min-height: 325px; transition: border-color .2s, transform .2s; }
.catalog-card:hover { border-color: #aac6f0; transform: translateY(-3px); }
.catalog-card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; }
.cloud-icon { display: grid; place-items: center; width: 52px; height: 52px; color: var(--blue); background: #eff5ff; border: 1px solid #e2ebfa; border-radius: 16px; }
.cloud-icon svg { width: 29px; height: 29px; }
.line-tag { font-size: 11px; color: #5f7ca3; border: 1px solid #dbe6f6; padding: 5px 11px; border-radius: 20px; background: #fff9; }
.catalog-card h3 { font-size: 24px; margin: 0 0 14px; font-weight: 600; letter-spacing: -.025em; position: relative; z-index: 1; }
.catalog-card p { font-size: 14px; color: var(--muted); line-height: 1.95; position: relative; z-index: 1; }
.catalog-card-link { display: flex; align-items: center; gap: 30px; font-size: 13px; color: #2f69bb; margin-top: 26px; font-weight: 500; }
.catalog-decoration { position: absolute; right: 18px; bottom: -32px; font-size: 180px; font-weight: 400; color: #dfe9f8; line-height: 1; pointer-events: none; }
.closing { padding-block: 64px; }
.closing-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.closing .eyebrow { font-size: 11px; letter-spacing: .14em; margin: 0 0 13px; color: #617b9e; }
.closing h2 { font-size: 30px; }
.footer { border-top: 1px solid var(--line); padding-block: 32px 25px; }
.footer-inner { display: flex; align-items: center; gap: 30px; }
.footer .brand-mark { width: 30px; height: 32px; border-radius: 9px; font-size: 18px; box-shadow: none; }
.footer .brand-mark i { right: 5px; top: 6px; width: 3px; height: 3px; }
.footer .brand strong { font-size: 16px; }
.copyright { font-size: 12px; color: #7f8da3; }
.footer nav { margin-left: auto; display: flex; gap: 28px; font-size: 12px; color: #62758f; }
.footer-legal { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 12px; padding-top: 20px; margin-top: 26px; border-top: 1px solid #edf0f5; color: #6e7d93; font-size: 12px; line-height: 1.9; }
.footer-legal a:hover { color: var(--blue); text-decoration: underline; text-underline-offset: 4px; }
.legal-divider { color: #b0bfd3; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (min-width: 1500px) {
  .hero-inner { min-height: 730px; }
  .hero-art { height: 695px; }
  .hero h1 { font-size: 70px; }
  .hero-lead { font-size: 17px; }
}
@media (max-width: 1100px) {
  .container { width: calc(100% - 64px); }
  .desktop-nav { gap: 18px; font-size: 13px; }
  .header-inner { gap: 20px; }
  .header-actions { gap: 20px; }
  .hero-inner { min-height: 635px; }
  .hero-art { height: 600px; margin-right: -18px; }
  .hero h1 { font-size: 51px; }
  .hero-lead { font-size: 15px; }
  .hero-points { gap: 17px; font-size: 11px; }
  .hero-actions .button { padding-inline: 20px; gap: 16px; font-size: 13px; }
  .announcement { font-size: 11px; gap: 7px; }
  .art-bottom { font-size: 10px; }
  .feature { padding: 25px; }
  .feature-grid { gap: 18px; }
  .feature h3 { font-size: 21px; }
  .feature p { font-size: 13px; }
  .catalog-inner { gap: 45px; }
  .section { padding-block: 78px; }
  .section h2 { font-size: 36px; }
}
@media (max-width: 820px) and (min-width: 701px) {
  .desktop-nav { display: none; }
  .hero-inner { grid-template-columns: 46% 54%; min-height: 590px; }
  .hero h1 { font-size: 40px; }
  .hero-art { height: 550px; }
  .hero-lead { font-size: 14px; }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 10px; }
  .hero-actions .button { min-width: 165px; }
  .hero-points { gap: 9px; font-size: 10px; }
  .announcement { font-size: 10px; gap: 5px; padding-inline: 9px; }
  .art-caption { font-size: 10px; }
  .art-bottom { flex-direction: column; align-items: center; gap: 7px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature { display: grid; grid-template-columns: 54px 1fr; column-gap: 22px; }
  .feature-number { grid-column: 1 / -1; margin-bottom: 23px; }
  .feature-icon { grid-row: 2 / 4; margin: 0; }
  .feature p { margin: 0; }
  .feature a { grid-column: 2; margin-top: 18px; }
  .catalog-inner { gap: 30px; }
  .catalog-card { padding: 28px; }
  .catalog-card h3 { font-size: 21px; }
  .section h2 { font-size: 31px; }
}
@media (max-width: 820px) {
  .desktop-nav { display: none; }
  .header-inner { min-height: 74px; }
  .header-actions { margin-left: auto; }
  .mobile-menu { display: block; position: relative; margin-left: 1px; }
  .mobile-menu summary { list-style: none; width: 36px; height: 38px; display: flex; flex-direction: column; gap: 5px; align-items: center; justify-content: center; cursor: pointer; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu summary span { display: block; height: 1.5px; width: 19px; background: #394b65; }
  .mobile-menu nav { position: absolute; right: 0; top: 47px; width: 195px; padding: 12px; background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 12px 28px #101c3215; }
  .mobile-menu nav a { display: block; font-size: 14px; padding: 11px; border-radius: 8px; }
  .mobile-menu nav a:hover { background: #f4f7fc; }
}
@media (max-width: 700px) {
  .container { width: calc(100% - 44px); }
  .header-inner { min-height: 70px; gap: 10px; }
  .brand { gap: 9px; }
  .brand strong { font-size: 17px; }
  .brand-mark { width: 31px; height: 34px; border-radius: 10px; font-size: 20px; }
  .brand-mark i { right: 5px; top: 6px; width: 3px; height: 3px; }
  .sign-in { display: none; }
  .header-actions { gap: 0; }
  .button-small { font-size: 12px; padding: 9px 12px; min-height: 40px; gap: 9px; border-radius: 9px; }
  .hero-inner { display: flex; flex-direction: column; align-items: stretch; min-height: 0; }
  .hero-copy { padding: 38px 0 0; text-align: center; }
  .announcement { font-size: 10px; padding: 7px 11px; margin-bottom: 26px; gap: 6px; }
  .hero-copy>.eyebrow { font-size: 10px; letter-spacing: .08em; margin-bottom: 16px; }
  .hero h1 { font-size: 43px; letter-spacing: -.025em; margin-bottom: 20px; line-height: 1.29; }
  .hero-lead { font-size: 14px; line-height: 1.9; letter-spacing: 0; margin: 0 0 25px; }
  .hero-actions { flex-direction: row; justify-content: center; align-items: center; gap: 10px; }
  .hero-actions .button { min-height: 48px; font-size: 12px; padding: 12px 16px; gap: 13px; }
  .hero-points { justify-content: center; font-size: 10px; gap: 15px; margin-top: 22px; }
  .hero-points span { gap: 4px; }
  .hero-art { height: 470px; margin: 0 -10px; }
  .art-caption { display: none; }
  .scene { inset: -8px -4px 36px; }
  .art-bottom { bottom: 13px; flex-direction: row; font-size: 9px; left: 10px; right: 10px; gap: 5px; }
  .drag-hint { gap: 4px; }
  .drag-hint svg { width: 14px; height: 14px; }
  .hero-footer { min-height: 58px; font-size: 10px; gap: 10px; }
  .hero-footer a { white-space: nowrap; gap: 8px; }
  .section { padding-block: 58px; }
  .section-heading { margin-bottom: 31px; }
  .section h2 { font-size: 30px; letter-spacing: -.035em; }
  .section-heading .eyebrow { font-size: 11px; margin-bottom: 14px; }
  .section-heading>p:last-child { font-size: 13px; margin-top: 17px; text-wrap: balance; }
  .feature-grid { grid-template-columns: 1fr; gap: 16px; }
  .feature { padding: 25px; display: grid; grid-template-columns: 46px 1fr; column-gap: 17px; border-radius: 18px; }
  .feature-number { grid-column: 1 / -1; font-size: 10px; margin-bottom: 22px; }
  .feature-icon { width: 46px; height: 46px; margin: 0; grid-row: 2 / 4; align-self: start; border-radius: 13px; }
  .feature-icon svg { width: 24px; height: 24px; }
  .feature h3 { font-size: 20px; margin-bottom: 10px; }
  .feature p { margin: 0; font-size: 13px; line-height: 1.9; }
  .feature a { grid-column: 2; margin-top: 19px; font-size: 12px; gap: 14px; }
  .catalog-inner { grid-template-columns: 1fr; gap: 30px; }
  .catalog-inner>div>p:not(.eyebrow) { font-size: 14px; margin-top: 17px; }
  .catalog-inner>div>.button { margin-top: 24px; font-size: 13px; padding: 12px 20px; min-height: 48px; }
  .catalog-card { min-height: 320px; padding: 27px; }
  .catalog-card h3 { font-size: 22px; }
  .catalog-card p { font-size: 13px; }
  .closing { padding-block: 45px; }
  .closing-inner { flex-direction: column; align-items: flex-start; gap: 25px; }
  .closing h2 { font-size: 25px; }
  .closing .button { font-size: 13px; padding: 12px 20px; min-height: 48px; }
  .footer { padding-block: 26px; }
  .footer-inner { flex-wrap: wrap; gap: 20px 15px; }
  .copyright { margin-left: auto; font-size: 11px; }
  .footer nav { width: 100%; margin: 0; font-size: 12px; gap: 24px; }
  .footer .brand strong { font-size: 15px; }
  .footer-legal { flex-direction: column; gap: 4px; font-size: 11px; padding-top: 19px; margin-top: 22px; }
  .legal-divider { display: none; }
  .fallback { inset: 30% 5% auto; }
  .fallback p { font-size: 12px; }
}
@media (max-width: 360px) {
  .container { width: calc(100% - 36px); }
  .hero h1 { font-size: 38px; }
  .hero-lead { font-size: 13px; }
  .hero-points { gap: 10px; font-size: 9px; }
  .announcement { font-size: 9px; }
  .hero-actions .button { font-size: 11px; padding-inline: 13px; }
  .hero-art { height: 425px; }
  .art-bottom { font-size: 8px; }
  .hero-footer { font-size: 9px; }
  .feature { padding: 22px; column-gap: 14px; }
  .feature h3 { font-size: 19px; }
  .feature p { font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .loading span { animation: none; }
  * { transition: none !important; }
}

/* Keep homepage typography independent of the application shell. */
#experience{font-family:var(--font);font-weight:400;line-height:1.7;color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased}#experience h1,#experience h2,#experience h3{font-family:var(--font)}

/* Keep the poster visible when WebGL is unavailable or preparation times out. */
.experience[data-render-state=fallback] .scene canvas { display: none; }
.experience[data-render-state=fallback] .drag-hint { visibility: hidden; }
.fallback { inset: auto auto 48px 50%; transform: translateX(-50%); white-space: nowrap; padding: 4px 12px; border-radius: 20px; background: #ffffffbd; font-size: 12px; }
.fallback p { margin: 0; }