:root {
  color-scheme: light;
  --ink: #203c31;
  --muted: #7b897f;
  --green: #315c45;
  --green-dark: #1f4732;
  --mint: #e8efde;
  --lime: #d0e0a4;
  --paper: #fafbf7;
  --line: #e2e8dc;
  --screen-green: #d6ff79;
  --screen-white: #fffce9;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--paper); font-size: 14px; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; cursor: pointer; border: 0; background: none; touch-action: manipulation; }
button:disabled { cursor: default; opacity: .45; }
button, a { transition: background .18s, color .18s, border-color .18s, box-shadow .18s, transform .18s; }
button:active:not(:disabled) { transform: translateY(1px); }
button:focus-visible, a:focus-visible, input:focus-visible { outline: 3px solid #91b36a; outline-offset: 4px; }
a { color: inherit; text-decoration: none; }
svg { flex-shrink: 0; }
[hidden] { display: none !important; }
.site-header { max-width: 1360px; min-height: 88px; margin: auto; padding: 0 42px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 17px; font-weight: 650; letter-spacing: .7px; }
.brand-mark { color: #466e48; font-size: 36px; line-height: 1; }
.brand svg { width: 34px; height: 34px; }
.brand small { display: block; margin-top: 4px; font-size: 8px; letter-spacing: 2.2px; font-weight: 500; }
.header-actions { display: flex; align-items: center; gap: 14px; font-size: 12px; }
.header-actions a, .header-actions button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 0 13px; border: 1px solid #dce4d4; border-radius: 8px; }
.header-actions a:hover, .header-actions button:hover { background: #edf2e6; border-color: #b8caab; }
.header-actions svg { width: 16px; height: 16px; }
.page-wrap { width: min(100%, 1360px); padding: 0 42px; margin: auto; }
.eyebrow { display: flex; align-items: center; gap: 9px; color: #7c8a79; font-size: 10px; font-weight: 550; letter-spacing: 1.65px; line-height: 1.7; }
.eyebrow > span { color: #496343; font-size: 11px; font-weight: 700; }
.eyebrow i { display: inline-block; width: 22px; height: 1px; background: #bac8af; }
.hero { display: flex; justify-content: space-between; align-items: end; gap: 32px; padding: 40px 0 29px; }
.hero-copy { max-width: 800px; }
h1 { margin: 12px 0 12px; font-size: clamp(27px, 2.65vw, 37px); line-height: 1.36; font-weight: 600; letter-spacing: .9px; }
h1 em, h1 > span { color: #759652; font-style: normal; }
.hero-copy > p { margin: 0; color: #7d897e; font-size: 13px; line-height: 1.9; }
.hero-note { max-width: 260px; padding: 12px 15px; background: #edf2e5; color: #64775a; border: 1px solid #e1e9d7; border-radius: 9px; font-size: 11px; line-height: 1.8; }
.hero-note b { display: block; margin-bottom: 2px; color: #405c36; font-size: 12px; font-weight: 600; }
.prototype-card { border: 1px solid #dfe6d8; border-radius: 15px; overflow: hidden; background: #fff; box-shadow: 0 12px 34px #30482b0b; }
.demo-topbar { min-height: 63px; padding: 10px 24px; display: flex; align-items: center; justify-content: space-between; gap: 18px; border-bottom: 1px solid var(--line); }
.demo-topbar > span, .demo-topbar > p, .live-title { margin: 0; display: flex; align-items: center; gap: 8px; font-size: 12px; }
.live-dot { width: 6px; height: 6px; border-radius: 50%; background: #7d9c59; box-shadow: 0 0 0 4px #7d9c5910; }
.demo-topbar small { color: #929c8c; font-size: 10px; }
.mode-tabs { display: flex; gap: 3px; padding: 3px; background: #f1f4eb; border: 1px solid #e8eddf; border-radius: 9px; }
.mode-tabs button { min-height: 44px; padding: 0 16px; color: #7d8a73; font-size: 11px; border-radius: 6px; white-space: nowrap; }
.mode-tabs button.active, .mode-tabs button[aria-selected="true"], .mode-tabs button[aria-pressed="true"] { background: white; color: #365b37; box-shadow: 0 2px 6px #2944210a; }
.mode-tabs button:hover { color: #2b5135; }
.demo-grid { display: grid; grid-template-columns: minmax(190px, 245px) minmax(330px, 1fr) minmax(265px, 320px); grid-template-areas: "scene device narration"; gap: 24px; padding: 28px 25px 25px; align-items: start; background: radial-gradient(ellipse at 48% 41%, #eff4e880, transparent 61%); }
.scene-panel { grid-area: scene; min-width: 0; }
.device-stage { grid-area: device; min-width: 0; display: flex; flex-direction: column; align-items: center; position: relative; padding-top: 1px; }
.narration-panel { grid-area: narration; min-width: 0; }
.panel-label, .panel-title, .section-label { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 0 0 12px; font-size: 11px; font-weight: 600; color: #5e7356; letter-spacing: .25px; }
.panel-label small, .panel-title small, .section-label small { color: #98a08f; font-size: 9px; font-weight: 400; }
.scene-panel > h2, .narration-panel > h2 { font-size: 13px; font-weight: 600; margin: 0 0 8px; }
.scene-panel > p, .narration-panel > p { margin: 0 0 15px; font-size: 11px; color: var(--muted); line-height: 1.8; }
.object-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.object-card { min-width: 0; min-height: 101px; padding: 12px 5px 10px; border: 1px solid #e5eadf; border-radius: 11px; background: #f9faf6; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 6px; position: relative; }
.object-card svg { width: 42px; height: 42px; color: #76945a; }
.object-card > span { font-size: 11px; color: #65795a; line-height: 1.4; }
.object-card small { color: #9aa58e; font-size: 9px; }
.object-card:hover { background: #f0f5e8; border-color: #c8d8b7; }
.object-card.active, .object-card.selected, .object-card[aria-pressed="true"] { border-color: #8ba973; background: #eef4e4; box-shadow: inset 0 0 0 1px #8ba97330; }
.object-card.active::after, .object-card.selected::after, .object-card[aria-pressed="true"]::after { content: "✓"; position: absolute; top: 6px; right: 7px; width: 16px; height: 16px; color: white; background: #6d8c56; border-radius: 50%; font-size: 10px; display: grid; place-items: center; }
.scene-note, .simulation-note { margin-top: 12px; color: #919c86; font-size: 10px; line-height: 1.8; }
.device-wrap { width: 330px; max-width: 100%; height: 397px; position: relative; margin: 0 auto; flex-shrink: 0; }
.device-wrap::after { content: ""; position: absolute; width: 215px; height: 24px; left: 58px; bottom: 1px; background: #536d3930; filter: blur(15px); border-radius: 50%; z-index: 0; }
.lanyard { position: absolute; top: 14px; left: calc(50% - 25px); width: 50px; height: 55px; border: 10px solid #a5b997; border-bottom-width: 13px; border-radius: 26px 26px 16px 16px; box-shadow: inset 0 2px 3px #4b6a3b30, 0 1px 1px #fff; z-index: 0; }
.device-shell { position: absolute; top: 49px; left: 11px; width: 308px; height: 328px; border-radius: 46% 46% 47% 47%; border: 1px solid #c0d0ae; background: linear-gradient(135deg, #edf3e3 1%, #d8e4c6 35%, #c1d2aa 77%, #d3dfc1 100%); box-shadow: inset 0 0 0 5px #e1ead6, inset -5px -8px 10px #79945e55, inset 5px 5px 7px #fff9, 5px 11px 16px #344d2521, 1px 2px 3px #344d2529; z-index: 1; }
.device-shell::before { content: ""; position: absolute; inset: 13px; border: 1px solid #bed0aa80; border-radius: inherit; pointer-events: none; }
.voice-key, .camera-key { position: absolute; top: 0; width: 66px; min-height: 44px; padding: 3px 7px; border: 1px solid #a5ba8d; background: linear-gradient(#e9f1dc, #c0d2a6); color: #536e42; border-radius: 13px 13px 7px 7px; box-shadow: inset 0 2px 2px #fff9, 0 3px 5px #66804c35; display: flex; align-items: center; justify-content: center; gap: 5px; z-index: 4; font-size: 10px; user-select: none; -webkit-user-select: none; touch-action: none; }
.voice-key { left: 26px; transform: rotate(-34deg); }
.camera-key { right: 26px; transform: rotate(34deg); }
.voice-key svg, .camera-key svg { width: 18px; height: 18px; }
.voice-key:active, .voice-key.pressing, .voice-key.is-held { transform: rotate(-34deg) translateY(3px); background: #b4cb95; }
.camera-key:active, .camera-key.pressing { transform: rotate(34deg) translateY(3px); background: #b4cb95; }
.device-brand { position: absolute; top: 53px; width: 100%; text-align: center; color: #829671; font-size: 8px; font-weight: 650; letter-spacing: 2.3px; text-shadow: 0 1px 0 #fff7; }
.screen { position: absolute; top: 84px; left: calc(50% - 75px); width: 150px; height: 150px; padding: 21px; border-radius: 50%; overflow: hidden; isolation: isolate; background: #14291e; color: var(--screen-white); border: 5px solid #344633; box-shadow: 0 0 0 2px #a5ba8d, 0 3px 4px #fff8, inset 0 0 0 1px #030d06, inset 0 0 18px #0005; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; text-align: center; user-select: none; -webkit-user-select: none; pointer-events: none; }
.screen::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(142deg, #f1ffdd0c, transparent 44%); pointer-events: none; z-index: 5; }
.screen-icon { display: flex; align-items: center; justify-content: center; color: var(--screen-green); flex-shrink: 0; }
.screen-icon svg { width: 58px; height: 58px; display: block; }
.screen-word { margin: 0; max-width: 100%; font-size: 21px; line-height: 1.2; font-weight: 700; letter-spacing: 1px; color: var(--screen-white); white-space: nowrap; }
.screen-count { font-size: 31px; line-height: 1; font-weight: 750; font-variant-numeric: tabular-nums; letter-spacing: 1px; color: var(--screen-green); }
.screen:has(.screen-count) { gap: 6px; padding: 17px; }
.screen:has(.screen-count) .screen-icon svg { width: 31px; height: 31px; }
.screen:has(.screen-count) .screen-word { font-size: 15px; letter-spacing: .5px; }
.screen-bars { display: flex; width: 97px; height: 9px; gap: 4px; border-radius: 9px; overflow: hidden; flex-shrink: 0; }
.screen-bars i { display: block; flex: 1; height: 100%; background: #4b6040; border-radius: 2px; }
.screen-bars i.on, .screen-bars i.done, .screen-bars i.filled, .screen-bars i.active { background: var(--screen-green); }
.screen-wave { height: 30px; display: flex; align-items: center; justify-content: center; gap: 5px; color: var(--screen-green); }
.screen-wave i, .screen-wave span { width: 5px; height: 13px; display: block; border-radius: 4px; background: currentColor; animation: voice-wave .85s ease-in-out infinite alternate; }
.screen-wave :nth-child(2n) { height: 26px; animation-delay: -.2s; }
.screen-wave :nth-child(3n) { height: 20px; animation-delay: -.45s; }
.screen.is-success .screen-icon, .screen[data-state="complete"] .screen-icon, .screen[data-state="badge-unlock"] .screen-icon { animation: reward-pop .65s cubic-bezier(.2,.8,.2,1.2) both; }
.screen.is-scanning .screen-icon, .screen[data-state="scanning"] .screen-icon { animation: scan-breathe 1s ease-in-out infinite; }
.speaker { position: absolute; bottom: 50px; left: calc(50% - 28px); width: 56px; height: 18px; background-image: radial-gradient(circle, #90a77b 1.3px, transparent 1.5px); background-size: 7px 6px; opacity: .8; }
.knob { position: absolute; right: -13px; top: 133px; width: 28px; min-height: 62px; border: 1px solid #9bb183; border-radius: 9px; background: repeating-linear-gradient(0deg, #b0c598 0 2px, #d0dfba 2px 4px); box-shadow: inset -3px 0 4px #6c855750, inset 3px 0 3px #f9fff0a0, 2px 3px 3px #334a2425; z-index: 3; }
.knob > span { display: block; margin: auto; width: 15px; height: 3px; border-radius: 3px; background: #8ea574; }
.hardware-hint { max-width: 320px; margin: 0 auto; display: flex; justify-content: center; gap: 16px; color: #7f9070; font-size: 10px; line-height: 1.8; text-align: center; }
.hardware-hint b { color: #536c43; font-weight: 550; }
.hardware-hint svg { width: 14px; height: 14px; vertical-align: -3px; margin-right: 4px; }
.state-caption { display: flex; align-items: center; justify-content: center; gap: 6px; margin-top: 11px; font-size: 10px; color: #7d8d72; line-height: 1.7; text-align: center; }
.state-caption::before { content: ""; display: block; width: 5px; height: 5px; border-radius: 50%; background: #8ca673; flex-shrink: 0; }
.state-caption b { font-weight: 500; }
.speech-card { padding: 20px 19px 18px; border: 1px solid #dfe8d2; border-radius: 12px; background: #f1f5e9; position: relative; }
.speech-card::before { content: "“"; position: absolute; right: 13px; top: 11px; font-family: Georgia, serif; font-size: 57px; line-height: 1; color: #d9e4c9; }
.speech-label { display: flex; align-items: center; gap: 7px; margin: 0 0 12px; position: relative; color: #789263; font-size: 10px; letter-spacing: 1px; }
.speech-label svg { width: 15px; height: 15px; }
.speech-text { position: relative; margin: 0; font-size: 16px; line-height: 1.9; color: #345438; font-weight: 500; }
.speech-card > button { min-height: 44px; padding: 7px 0 0; display: inline-flex; align-items: center; gap: 6px; font-size: 10px; color: #7e946d; }
.speech-card > button svg { width: 14px; height: 14px; }
.voice-commands { display: flex; flex-wrap: wrap; gap: 7px; margin: 13px 0 0; }
.voice-commands button { min-height: 44px; padding: 10px 12px; border: 1px solid #dfe6d6; border-radius: 8px; font-size: 11px; line-height: 1.6; color: #627752; background: #fff; text-align: left; }
.voice-commands button:hover { color: #35532d; background: #eef4e5; border-color: #b5c99c; }
.voice-commands button.primary, .voice-commands button[data-primary="true"] { background: var(--green); border-color: var(--green); color: white; }
.task-note { margin-top: 16px; padding: 13px 0; border-top: 1px solid #e6ebdf; border-bottom: 1px solid #e6ebdf; color: #7d8d70; font-size: 11px; line-height: 1.85; }
.task-note strong, .task-note b { color: #4e6840; font-weight: 600; }
.task-note p { margin: 5px 0 0; }
.task-note:empty { display: none; }
.inspector { margin-top: 15px; color: #8d9984; font-size: 10px; line-height: 1.8; }
.inspector strong { color: #647859; font-weight: 500; }
.inspector p { margin: 4px 0; }
.inspector .event, .inspector li { padding: 3px 0 3px 12px; position: relative; }
.inspector .event::before, .inspector li::before { content: ""; position: absolute; left: 0; top: 10px; width: 4px; height: 4px; background: #b5c6a0; border-radius: 50%; }
.inspector ul { padding: 0; margin: 0; list-style: none; }
.journey-strip { display: flex; gap: 5px; padding: 15px 20px; background: #f9faf6; border-top: 1px solid var(--line); overflow-x: auto; scrollbar-width: thin; scrollbar-color: #cfdbc2 transparent; }
.journey-strip button { flex: 1 0 auto; min-height: 44px; padding: 8px 12px; border: 1px solid transparent; border-radius: 8px; font-size: 10px; color: #87967b; display: flex; align-items: center; justify-content: center; gap: 7px; white-space: nowrap; }
.journey-strip button span:first-child { color: #a1b28f; font-size: 9px; font-variant-numeric: tabular-nums; }
.journey-strip button svg { width: 15px; height: 15px; }
.journey-strip button:hover { background: #edf2e6; color: #45603b; }
.journey-strip button.active, .journey-strip button[aria-current="step"], .journey-strip button[aria-pressed="true"] { border-color: #cbdabd; background: #edf3e2; color: #436137; }
.journey-detail { min-height: 55px; display: flex; align-items: center; gap: 12px; padding: 13px 25px; border-top: 1px solid #edf0e7; color: #829076; font-size: 11px; line-height: 1.8; }
.journey-detail strong { color: #49653c; font-weight: 500; }
.help-grid { margin: 25px 0 32px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.help-card { min-width: 0; padding: 18px 19px; border: 1px solid #e1e7d8; border-radius: 11px; background: #f7f9f2; }
.help-card h2, .help-card h3 { margin: 0 0 8px; font-size: 12px; font-weight: 600; color: #4c6741; display: flex; align-items: center; gap: 7px; }
.help-card svg { width: 17px; height: 17px; }
.help-card p { margin: 0; color: #87947b; font-size: 11px; line-height: 1.9; }
.help-card a { text-decoration: underline; text-underline-offset: 3px; }
footer { padding: 20px 0 26px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); color: #9ba58f; font-size: 10px; line-height: 1.8; }
footer a { color: #6f8560; }
@keyframes voice-wave { to { transform: scaleY(.4); opacity: .6; } }
@keyframes reward-pop { 0% { transform: scale(.45); opacity: .2; } 70% { transform: scale(1.13); } 100% { transform: scale(1); opacity: 1; } }
@keyframes scan-breathe { 50% { opacity: .4; transform: scale(.94); } }
@media (min-width: 1400px) { .demo-grid { gap: 32px; padding: 30px; } }
@media (max-width: 1120px) {
  .site-header { padding: 0 28px; }
  .page-wrap { padding: 0 28px; }
  .hero { gap: 22px; }
  .hero-note { max-width: 215px; }
  .demo-grid { grid-template-columns: minmax(315px, 1fr) minmax(265px, .9fr); grid-template-areas: "device narration" "scene scene"; gap: 22px 32px; padding: 26px; }
  .scene-panel { padding-top: 17px; border-top: 1px solid var(--line); }
  .object-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .object-card { min-height: 92px; }
  .scene-panel > p { display: inline; margin-right: 8px; }
  .scene-note { margin-top: 9px; }
  .journey-strip { padding-inline: 12px; }
  .journey-strip button { padding-inline: 9px; }
}
@media (max-width: 760px) {
  .site-header { min-height: 74px; padding: 0 20px; gap: 12px; }
  .brand { font-size: 15px; gap: 8px; }
  .brand-mark { font-size: 31px; }
  .brand small { font-size: 7px; }
  .header-actions { gap: 7px; font-size: 10px; }
  .header-actions a, .header-actions button { padding-inline: 9px; }
  .page-wrap { padding: 0 18px; }
  .hero { display: block; padding: 28px 0 22px; }
  h1 { margin-top: 10px; font-size: 28px; letter-spacing: .3px; }
  .hero-copy > p { font-size: 12px; }
  .hero-note { max-width: none; margin-top: 16px; padding: 10px 13px; font-size: 10px; }
  .hero-note b { display: inline; margin-right: 7px; font-size: 11px; }
  .demo-topbar { flex-direction: column; align-items: stretch; gap: 10px; padding: 14px; }
  .demo-topbar > span, .demo-topbar > p, .live-title { justify-content: center; font-size: 11px; }
  .mode-tabs { width: 100%; }
  .mode-tabs button { flex: 1; padding-inline: 7px; font-size: 10px; }
  .demo-grid { grid-template-columns: minmax(0, 1fr); grid-template-areas: "device" "scene" "narration"; gap: 23px; padding: 23px 18px; }
  .device-stage { padding: 0; }
  .scene-panel { padding-top: 17px; }
  .object-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .object-card { min-height: 91px; }
  .narration-panel { padding-top: 18px; border-top: 1px solid var(--line); }
  .speech-card { padding: 17px 18px; }
  .speech-text { font-size: 16px; }
  .voice-commands button { flex-grow: 1; text-align: center; }
  .journey-strip { padding: 11px; gap: 4px; }
  .journey-strip button { flex: 0 0 auto; min-width: 96px; }
  .journey-detail { display: block; padding: 13px 18px; font-size: 10px; }
  .journey-detail strong { margin-right: 7px; }
  .help-grid { grid-template-columns: minmax(0, 1fr); gap: 10px; margin: 18px 0 22px; }
  .help-card { padding: 15px 17px; }
  footer { padding-top: 17px; flex-direction: column; align-items: start; gap: 6px; font-size: 9px; }
}
@media (max-width: 390px) {
  .site-header { padding-inline: 13px; }
  .header-actions a { max-width: 78px; font-size: 9px; }
  .header-actions button { padding-inline: 8px; font-size: 9px; }
  .header-actions svg { width: 13px; }
  .page-wrap { padding-inline: 12px; }
  h1 { font-size: 25px; }
  .demo-grid { padding-inline: 12px; }
  .device-wrap { width: 306px; height: 379px; }
  .device-shell { left: 2px; width: calc(100% - 16px); height: 316px; }
  .device-wrap::after { left: 45px; }
  .device-brand { top: 50px; }
  .screen { top: 80px; }
  .speaker { bottom: 46px; }
  .voice-key { left: 23px; }
  .camera-key { right: 23px; }
  .hardware-hint { gap: 11px; font-size: 9px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}
/* Integration details for the bound interactive prototype. */
.brand-symbol{font-size:36px;line-height:1;font-weight:400}.small-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#839b66;vertical-align:middle}.hero-note strong{display:block;margin-top:4px}.hero-note p{margin:4px 0 0}.panel-kicker{font-size:10px;color:#809078;letter-spacing:1px;margin-bottom:18px}.device-stage>.panel-kicker{align-self:flex-start}.panel-description{line-height:1.8}.selected-object{display:flex;justify-content:space-between;gap:8px;padding:12px 0;color:#7b8c70;font-size:11px}.selected-object strong{color:#3b5b36}.object-card svg{color:var(--object-color);--vein:#f7faee}.object-card[data-object="blur"] svg{--vein:#0c2117}.device-mark{position:absolute;bottom:15px;left:0;right:0;text-align:center;font-size:22px;color:#9bb183;text-shadow:0 1px 0 #edf6de}.screen{--vein:#14291e}.screen #screen-content{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%;gap:8px}.screen svg.screen-icon{display:block;width:54px;height:54px}.screen:has(.screen-count) #screen-content{gap:5px}.screen:has(.screen-count) svg.screen-icon{width:24px;height:24px}.screen:has(.screen-count) .screen-word{font-size:14px}.screen:has(.screen-count) .screen-count{font-size:30px}.screen .listening{gap:4px!important}.screen .listening svg.screen-icon{width:38px;height:38px}.screen .screen-wave{height:16px}.screen .screen-wave i{height:12px}.screen .screen-wave i:nth-child(2n){height:18px}.screen[data-state="complete"] svg.screen-icon,.screen[data-state="badge"] svg.screen-icon{animation:reward-pop .7s both}.screen[data-state="scanning"] svg.screen-icon{animation:scan-breathe .8s infinite}.screen-note{font-size:10px;line-height:1.9;color:#7f8f76;text-align:center;margin:15px 0 0}.screen-note span{font-size:9px;color:#8f9987}.speech-label{justify-content:space-between;letter-spacing:.2px}.speech-label button{min-height:44px;position:relative;z-index:1;font-size:10px;padding:0 0 0 8px}.speech-label{margin-bottom:2px}.speech-footer{font-size:9px;color:#8c9c7c;margin-top:14px}.action-hint{font-size:11px;line-height:1.9;color:#7c8c70;margin:15px 0}.command-heading{font-size:11px;color:#476440}.command-heading span{display:block;color:#8c9983;font-size:9px;margin-top:4px}.voice-commands{margin-top:9px}.task-note small{display:block;color:#8c9983;font-size:9px}.inspector summary,.notes summary{cursor:pointer;min-height:44px;padding:10px 0}.inspector button{min-height:44px;border:1px solid #dfe6d8;padding:8px;border-radius:6px;margin:6px 5px 0 0}.notes{font-size:11px;line-height:1.9;color:#819175;margin-bottom:24px}.notes p{max-width:960px}.notes a{text-decoration:underline;text-underline-offset:3px}.help-card>span{display:block;font-size:10px;color:#9cab8f;margin-bottom:9px}footer{max-width:1276px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(max-width:760px){.site-header{flex-wrap:wrap;padding-top:14px;padding-bottom:12px;gap:10px}.header-actions{margin-left:auto;gap:5px}.header-actions a,.header-actions button{font-size:10px;padding-inline:9px}.hero-note{display:none}.hero h1 br{display:none}.panel-kicker{margin-bottom:12px}.demo-grid{grid-template-areas:"device" "narration" "scene"}.device-wrap{margin-top:6px}.speech-text{font-size:16px}.narration-panel{padding-top:5px}.object-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.object-card{min-height:84px}.object-card svg{width:34px;height:34px}.object-card>span{font-size:10px}.screen-note{margin-top:8px}.state-caption{margin-top:0}}
@media(max-width:390px){.header-actions{width:100%;justify-content:space-between}.screen-word{font-size:20px}.object-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.voice-key svg,.camera-key svg{fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
@media(min-width:761px){.hero{padding:29px 0 23px}.hero h1 br{display:none}.hero h1{font-size:32px}.site-header{min-height:80px}}
@media(max-width:760px){.demo-grid{grid-template-areas:"device" "scene" "narration"}.scene-panel>.simulation-note{display:block;margin-top:12px}.scene-panel>.panel-description{display:block;margin-bottom:12px}}
/* Display revision: 480 × 480 logical pixels, near-round outline from the supplied module crop.
   The crop does not establish the device body dimensions, display-to-body ratio or key positions. */
.screen{border-radius:43%;padding:0}
.screen #screen-content{position:absolute;left:0;top:0;width:480px;height:480px;padding:68px;gap:27px;transform:scale(.291666667);transform-origin:top left}
.screen svg.screen-icon{width:185px;height:185px}
.screen .screen-word{font-size:72px;letter-spacing:3.4px;line-height:1.2}
.screen:has(.screen-count){padding:0}
.screen:has(.screen-count) #screen-content{gap:17px;padding:58px}
.screen:has(.screen-count) svg.screen-icon{width:82px;height:82px}
.screen:has(.screen-count) .screen-word{font-size:48px;letter-spacing:1.7px}
.screen:has(.screen-count) .screen-count{font-size:103px;letter-spacing:3.4px}
.screen .screen-bars{width:333px;height:31px;gap:14px;border-radius:31px}
.screen .screen-bars i{border-radius:7px}
.screen .listening{gap:14px!important}
.screen .listening svg.screen-icon{width:130px;height:130px}
.screen .screen-wave{height:55px;gap:17px}
.screen .screen-wave i{width:17px;height:41px;border-radius:14px}
.screen .screen-wave i:nth-child(2n){height:62px}
.screen .screen-wave i:nth-child(3n){height:55px}
/* The display fills the front face; the user confirmed a narrow-bezel body. */
.device-wrap{height:375px}
.device-shell{height:auto;aspect-ratio:1;border-radius:43%;box-shadow:inset 0 0 0 3px #e1ead6,inset -3px -4px 6px #79945e55,3px 9px 16px #344d2521}
.device-shell::before{inset:4px}
.device-brand,.device-mark,.speaker{display:none}
.voice-key,.camera-key{top:-17px}
.screen{top:6px;left:6px;width:calc(100% - 12px);height:calc(100% - 12px);border-radius:42%;border-width:3px;box-shadow:0 0 0 1px #7f9d6e,inset 0 0 0 1px #030d06}
.screen #screen-content{transform:scale(var(--screen-scale,.6))}
.knob{top:calc(50% - 31px)}
.screen .screen-photo,.screen .photo-shade{position:absolute;inset:0;width:480px;height:480px;z-index:-2;object-fit:cover}
.screen .photo-shade{z-index:-1;background:linear-gradient(180deg,#07130b0d 18%,#07130b30 49%,#07130be8 100%)}
.screen .photo-view{isolation:isolate}
.screen .photo-view:not(.result):not(.scanning) .screen-photo{filter:brightness(.4)}
.screen .photo-view:not(.result):not(.scanning) .photo-shade{background:#06130b55}
.screen .result.photo-view .screen-word{position:absolute;left:40px;right:40px;bottom:70px;font-size:56px;text-shadow:0 2px 8px #000a;letter-spacing:2px}
.screen .scanning.photo-view .screen-word,.screen .failed.photo-view .screen-word{font-size:60px;text-shadow:0 2px 8px #000a}
.screen .scanning.photo-view:after{content:"";position:absolute;inset:70px;border:4px solid #d6ff79aa;border-radius:20%;animation:scan-breathe .75s infinite}
.screen .blurry .screen-photo{filter:blur(14px) brightness(.5)!important;transform:scale(1.08)}
.object-filters{display:flex;gap:4px;margin:0 0 12px;background:#f1f4eb;border-radius:8px;padding:3px}
.object-filters button{min-height:44px;flex:1;padding:6px 3px;font-size:10px;border-radius:6px;color:#738568}
.object-filters button[aria-pressed="true"]{background:#fff;color:#294c3c;box-shadow:0 1px 5px #294c3c12}
.object-card{padding:0;gap:0;min-height:0;overflow:hidden;background:#f7f9f2;border-radius:10px}
.object-card img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .2s}
.object-card>span{padding:9px 4px;font-size:11px;line-height:1.4}
.object-card:hover img{transform:scale(1.035)}
.object-card[aria-pressed="true"]{border-color:#527b40;box-shadow:0 0 0 1px #527b40}
.object-card[aria-pressed="true"]>span{color:#294c3c;font-weight:600}
.object-card.blurry img{filter:blur(5px);transform:scale(1.08)}
.photo-credits ul{padding-left:18px}.photo-credits li{margin-bottom:8px}.photo-credits a{text-decoration:underline;text-underline-offset:3px}
@media(max-width:390px){.device-wrap{height:355px}.device-shell{height:auto}.voice-key{left:23px}.camera-key{right:23px}}
@media(min-width:1121px){.object-grid{max-height:500px;overflow-y:auto;padding:1px 3px 2px 1px;scrollbar-width:thin;scrollbar-color:#c6d6b9 transparent}}
@media(max-width:760px){.object-card>span{font-size:10px;padding:8px 2px}.object-filters{margin-bottom:12px}.object-filters button{font-size:11px}}
.screen-photo{background:#c4d0be}
.object-card[data-object="ginkgo"] img,.object-card[data-object="maple"] img{background:#e5ece1}

/* 观察回答与本轮问题配套，始终放在设备外。 */
.voice-commands .context-answer{background:#eff5e8;border-color:#b3c99b;color:#35562e;font-weight:500}
.voice-commands .context-answer:hover{background:#e2edd7;border-color:#789a59}
.child-echo{margin:0 0 14px;padding:9px 12px;border-left:3px solid #9eb580;color:#658057;font-size:11px;line-height:1.8;background:#f6f8f1}
.child-echo[hidden]{display:none}

/* 识别可回看照片；观察引导改为实物提醒与短动作，减少盯屏。 */
.screen .screen-attention{position:absolute;top:101px;left:68px;right:68px;padding:12px 6px;border-radius:16px;background:#d6ff79;color:#14291e;font-size:43px;line-height:1.2;font-weight:750;letter-spacing:0;white-space:nowrap;text-align:center}
.screen .guide.has-attention .screen-word{margin-top:55px}
.screen .listening.has-attention{padding-top:145px;gap:12px!important}
.screen .listening.has-attention .screen-attention{top:58px}
.screen .listening.has-attention svg.screen-icon{width:100px;height:100px;flex-shrink:0}
.screen .listening.has-attention .screen-word{font-size:62px}

/* AMOLED preview: a lit display beneath cover glass, within the same visible area. */
.screen{--screen-white:#f4fff8;--screen-green:#ceff82;--vein:#020604;background:#020604;border-color:#263b2d;box-shadow:0 0 0 1px #7d9470,inset 0 0 0 1px #000,inset 0 1px 2px #b7cfc412,0 1px 1px #e6f2dd88}
.screen::before{content:"";position:absolute;inset:1px;border:1px solid #c4d8cd18;border-radius:inherit;z-index:6;pointer-events:none;box-shadow:inset 0 0 3px #000b}
.screen::after{background:linear-gradient(128deg,#ffffff12 0%,#ffffff03 27%,transparent 28%,transparent 71%,#ffffff04 100%),radial-gradient(ellipse at 18% 2%,#ffffff0d,transparent 48%);box-shadow:inset 1px 1px 1px #ffffff38,inset -1px -2px 3px #000b}
.screen .screen-word{font-weight:650;letter-spacing:2px;text-shadow:0 0 1px #ffffff55,0 0 8px #d5ffe51c}
.screen .screen-icon{filter:drop-shadow(0 0 3px #ceff8220)}
.screen .screen-photo{background:#020604;filter:brightness(1.03) contrast(1.07) saturate(1.06)}
.screen .photo-shade{background:linear-gradient(180deg,#0000 38%,#00000018 62%,#000b 100%)}
.screen .photo-view:not(.result):not(.scanning) .screen-photo{filter:brightness(.63) contrast(1.04) saturate(1.02)}
.screen .photo-view:not(.result):not(.scanning) .photo-shade{background:linear-gradient(180deg,#0001,#0004 64%,#0009)}
.screen .result.photo-view .screen-word{font-weight:650;text-shadow:0 2px 7px #000b,0 0 1px #ffffff55}
.screen .scanning.photo-view .screen-photo{filter:brightness(.85) contrast(1.05) saturate(1.04)}
.screen .blurry .screen-photo{filter:blur(14px) brightness(.58)!important}
.screen .screen-attention{background:#c9f8780d;border:1px solid #b6ef7f35;color:#d2ff95;border-radius:25px;font-weight:650;text-shadow:0 0 1px #d2ff9580,0 0 6px #c4ff7925;box-shadow:inset 0 1px 0 #d5ff9a0a}
.screen .photo-view .screen-attention{background:#020604e6;border-color:#d2ff9545}
.screen .screen-count{text-shadow:0 0 1px #ceff8255,0 0 8px #ceff821c}
.screen .screen-bars i{background:#1b2822}.screen .screen-bars i.filled{background:var(--screen-green);box-shadow:0 0 5px #ceff8224}