:root {
  color-scheme: dark;
  --bg: #090d12;
  --surface: #10161e;
  --surface-2: #151d27;
  --surface-3: #1b2531;
  --text: #f6f8fb;
  --muted: #a9b4c2;
  --faint: #748294;
  --line: rgba(255, 255, 255, .1);
  --primary: #ff6b2c;
  --primary-strong: #ff7a3e;
  --primary-soft: rgba(255, 107, 44, .13);
  --green: #4ed79a;
  --radius: 18px;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body { margin: 0; min-width: 320px; min-height: 100vh; min-height: 100dvh; overflow-x: clip; background: radial-gradient(circle at 78% 0, rgba(255,107,44,.11), transparent 28%), var(--bg); color: var(--text); overflow-wrap: anywhere; }
a { color: inherit; }
svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
a:focus-visible, summary:focus-visible { outline: 3px solid rgba(255,107,44,.45); outline-offset: 3px; }

.landing-skip-link { position: fixed; top: 8px; left: 8px; z-index: 1000; padding: 11px 15px; border-radius: 8px; background: var(--text); color: var(--bg); transform: translateY(-150%); }
.landing-skip-link:focus { transform: translateY(0); }
.landing-header { min-height: 72px; padding: 10px max(24px, calc((100vw - 1240px) / 2)); display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px; border-bottom: 1px solid var(--line); background: rgba(9,13,18,.86); backdrop-filter: blur(16px); position: sticky; top: 0; z-index: 50; }
.landing-brand { min-height: 48px; display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 850; letter-spacing: .1em; }
.landing-brand-mark { width: 38px; height: 38px; display: block; flex: 0 0 auto; border-radius: 0; background: transparent; }
.landing-brand-mark img { display: block; width: 100%; height: 100%; }
.landing-brand small { padding: 4px 7px; border: 1px solid var(--line); border-radius: 5px; color: var(--muted); font-size: 9px; letter-spacing: .08em; }
.landing-nav { justify-self: center; display: flex; align-items: center; gap: 28px; }
.landing-nav a { min-height: 44px; display: inline-flex; align-items: center; color: var(--muted); text-decoration: none; font-size: 13px; font-weight: 700; transition: color .2s ease; }
.landing-nav a:hover { color: var(--text); }
.landing-actions { display: flex; align-items: center; gap: 10px; }
.landing-contact-shortcut { display: none; }
.landing-locales { padding: 3px; display: flex; border: 1px solid var(--line); border-radius: 10px; background: rgba(255,255,255,.025); }
.landing-locales a { min-width: 40px; min-height: 36px; display: grid; place-items: center; border-radius: 7px; color: var(--muted); text-decoration: none; font-size: 11px; font-weight: 800; }
html[lang="zh-CN"] [data-locale-link="zh-CN"], html[lang="en"] [data-locale-link="en"] { background: var(--surface-3); color: var(--text); }
.landing-button { min-height: 48px; padding: 0 18px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; border: 1px solid transparent; border-radius: 10px; text-decoration: none; font-size: 13px; font-weight: 800; transition: background-color .2s ease, border-color .2s ease, transform .2s ease; }
.landing-button:hover { transform: translateY(-1px); }
.landing-button-primary, .landing-button-small { background: var(--primary); color: #17100d; }
.landing-button-primary:hover, .landing-button-small:hover { background: var(--primary-strong); }
.landing-button-secondary { border-color: var(--line); background: var(--surface); color: var(--text); }
.landing-button-secondary:hover { border-color: rgba(255,255,255,.22); background: var(--surface-2); }
.landing-button-small { min-height: 42px; padding-inline: 15px; font-size: 12px; }

main { width: min(1240px, calc(100% - 48px)); margin: 0 auto; }
.landing-hero { min-height: calc(100dvh - 72px); padding: clamp(64px, 9vw, 112px) 0; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(440px, .95fr); align-items: center; gap: clamp(52px, 7vw, 92px); }
.landing-hero-copy { max-width: 700px; }
.landing-eyebrow { margin: 0 0 14px; color: var(--primary); font-size: 11px; font-weight: 850; letter-spacing: .18em; }
.landing-hero h1 { margin: 0; max-width: 760px; font-size: clamp(48px, 5.7vw, 78px); line-height: 1.03; letter-spacing: -.055em; }
.landing-lede { margin: 24px 0 0; max-width: 680px; color: var(--muted); font-size: 18px; line-height: 1.75; }
.landing-hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
.landing-hero-actions .landing-button { min-height: 54px; padding-inline: 22px; }
.landing-hero-actions svg { width: 18px; }
.landing-trust { margin: 24px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px 24px; color: var(--muted); list-style: none; font-size: 12px; font-weight: 700; }
.landing-trust li { display: inline-flex; align-items: center; gap: 7px; }
.landing-trust svg { width: 16px; color: var(--green); }

.visually-hidden { width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; position: absolute; }
.landing-product-card { --demo-duration: 4200ms; padding: 16px; border: 1px solid rgba(255,255,255,.14); border-radius: 24px; background: linear-gradient(145deg, rgba(255,255,255,.045), transparent 38%), var(--surface); box-shadow: 0 34px 90px rgba(0,0,0,.42); }
.product-card-top { min-height: 48px; padding: 0 3px 12px; display: flex; align-items: center; justify-content: space-between; gap: 18px; color: var(--faint); font-size: 10px; }
.product-card-top > div { display: flex; align-items: center; gap: 9px; color: var(--muted); letter-spacing: .1em; }
.product-status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(78,215,154,.1); animation: product-status-pulse 2.4s ease-out infinite; }
.product-demo-controls > span { color: var(--faint); font: 700 10px ui-monospace, monospace; letter-spacing: .08em; }
.product-demo-controls > span b { color: var(--text); font-size: 12px; }
.product-demo-toggle { width: 44px; height: 44px; padding: 0; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: rgba(255,255,255,.025); color: var(--muted); cursor: pointer; transition: color .2s ease, border-color .2s ease, background-color .2s ease, transform .2s ease; }
.product-demo-toggle:hover { border-color: rgba(255,255,255,.24); background: rgba(255,255,255,.06); color: var(--text); }
.product-demo-toggle:active { transform: scale(.95); }
.product-demo-toggle:focus-visible, .product-steps button:focus-visible { outline: 3px solid rgba(255,107,44,.45); outline-offset: 2px; }
.product-demo-toggle svg { width: 18px; }
.product-demo-play-icon, .landing-product-card[data-user-paused="true"] .product-demo-pause-icon { display: none; }
.landing-product-card[data-user-paused="true"] .product-demo-play-icon { display: block; }
.product-demo-stage { min-height: 366px; overflow: hidden; border: 1px solid rgba(255,255,255,.09); border-radius: 16px; background: linear-gradient(rgba(4,7,10,.12), rgba(4,7,10,.72)), repeating-linear-gradient(90deg, transparent 0 59px, rgba(255,255,255,.022) 60px), repeating-linear-gradient(0deg, transparent 0 59px, rgba(255,255,255,.022) 60px), #070b10; position: relative; isolation: isolate; }
.product-demo-stage::after { content: ""; width: 180px; height: 180px; border-radius: 50%; background: rgba(255,107,44,.08); filter: blur(52px); transform: translate(64px, -72px); position: absolute; right: 0; top: 0; pointer-events: none; }
.product-scene { padding: 26px; display: grid; grid-template-rows: auto minmax(0, 1fr); gap: 18px; opacity: 0; transform: translateY(10px) scale(.99); transition: opacity .22s ease, transform .3s cubic-bezier(.22,.75,.2,1); position: absolute; inset: 0; pointer-events: none; }
.product-scene.is-active { opacity: 1; transform: translateY(0) scale(1); z-index: 1; pointer-events: auto; }
.product-scene-heading { max-width: 390px; position: relative; z-index: 2; }
.product-scene-heading > span { display: block; margin-bottom: 7px; color: var(--primary); font: 800 10px ui-monospace, monospace; letter-spacing: .12em; text-transform: uppercase; }
.product-scene-heading h2 { margin: 0; font-size: 21px; line-height: 1.2; letter-spacing: -.025em; }
.product-scene-heading p { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.55; }
.product-import-dropzone { min-height: 175px; padding: 18px; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px dashed rgba(255,107,44,.42); border-radius: 14px; background: linear-gradient(135deg, rgba(255,107,44,.08), transparent 56%), rgba(255,255,255,.018); position: relative; }
.product-scene-icon { width: 48px; height: 48px; margin-bottom: 12px; display: grid; place-items: center; border-radius: 14px; background: var(--primary-soft); color: var(--primary); }
.product-scene-icon svg { width: 24px; }
.product-import-dropzone strong { font-size: 14px; }
.product-import-dropzone small { margin-top: 5px; color: var(--muted); font: 500 10px ui-monospace, monospace; }
.product-import-dropzone i { padding: 5px 8px; border-radius: 999px; background: rgba(78,215,154,.1); color: var(--green); font-size: 9px; font-style: normal; position: absolute; right: 12px; bottom: 12px; }
.product-calibration-view { min-height: 175px; overflow: hidden; display: grid; grid-template-rows: minmax(0, 1fr) 38px; border: 1px solid rgba(255,255,255,.08); border-radius: 14px; background: #080d13; }
.product-basketball-frame { min-height: 0; overflow: hidden; background: linear-gradient(180deg, rgba(3,7,11,.1), rgba(3,7,11,.5)), linear-gradient(180deg, #18222d 0 61%, #39261f 61% 100%); position: relative; isolation: isolate; }
.product-basketball-frame::before { content: ""; height: 1px; background: rgba(255,255,255,.14); box-shadow: 0 24px rgba(255,255,255,.035), 0 48px rgba(255,255,255,.025); position: absolute; inset: 18% 0 auto; }
.product-gym-window { width: 30%; height: 32%; opacity: .48; background: repeating-linear-gradient(90deg, rgba(121,167,197,.18) 0 1px, transparent 1px 25%), repeating-linear-gradient(0deg, rgba(121,167,197,.15) 0 1px, transparent 1px 50%), rgba(59,90,110,.16); box-shadow: 0 0 28px rgba(88,166,255,.08); position: absolute; left: 6%; top: 14%; }
.product-court-floor { height: 43%; background: repeating-linear-gradient(90deg, rgba(255,255,255,.025) 0 1px, transparent 1px 44px), linear-gradient(180deg, rgba(255,107,44,.02), rgba(7,10,14,.45)); position: absolute; inset: auto 0 0; }
.product-court-floor::before { content: ""; width: 44%; height: 128%; border: 1px solid rgba(255,255,255,.13); border-radius: 50%; transform: perspective(140px) rotateX(63deg); position: absolute; left: 4%; bottom: -84%; }
.product-player { width: 13px; height: 34px; border-radius: 8px 8px 4px 4px; background: #080b0f; box-shadow: 0 8px 16px rgba(0,0,0,.28); opacity: .82; position: absolute; bottom: 26%; }
.product-player::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: #080b0f; position: absolute; left: 1px; top: -8px; }
.product-player::after { content: ""; width: 23px; height: 2px; background: #080b0f; transform: rotate(-18deg); position: absolute; left: -5px; top: 10px; }
.product-player-one { left: 21%; transform: scale(.9); }
.product-player-two { left: 42%; opacity: .56; transform: scale(.72); }
.product-scene-backboard { width: 58px; height: 46px; border: 2px solid rgba(231,238,245,.68); background: rgba(208,225,237,.035); box-shadow: 0 6px 18px rgba(0,0,0,.35); position: absolute; right: 8%; top: 15%; }
.product-scene-backboard::after { content: ""; width: 23px; height: 18px; border: 1px solid rgba(231,238,245,.5); position: absolute; left: 7px; bottom: 5px; }
.product-scene-rim { width: 45px; height: 13px; border: 2px solid var(--primary); border-radius: 50%; box-shadow: 0 0 14px rgba(255,107,44,.28); transform: rotateX(58deg); position: absolute; right: 13.5%; top: 45%; z-index: 2; }
.product-scene-rim::before { content: ""; width: 16px; height: 2px; background: var(--primary); transform: rotate(-7deg); position: absolute; right: -13px; top: 4px; }
.product-scene-rim i { width: 30px; height: 26px; border: 1px dashed rgba(232,238,244,.3); border-top: 0; transform: translateX(-50%); position: absolute; left: 50%; top: 8px; }
.product-calibration-box { width: 74px; height: 48px; border: 1.5px solid var(--primary); border-radius: 5px; box-shadow: 0 0 0 999px rgba(0,0,0,.18), 0 0 22px rgba(255,107,44,.18); position: absolute; right: 9.5%; top: 35%; z-index: 3; }
.product-calibration-box i { width: 8px; height: 8px; border: 2px solid #15100c; border-radius: 50%; background: var(--primary); position: absolute; }
.product-calibration-box i:nth-child(1) { left: -5px; top: -5px; }
.product-calibration-box i:nth-child(2) { right: -5px; top: -5px; }
.product-calibration-box i:nth-child(3) { left: -5px; bottom: -5px; }
.product-calibration-box i:nth-child(4) { right: -5px; bottom: -5px; }
.product-calibration-cursor { color: var(--text); filter: drop-shadow(0 3px 4px rgba(0,0,0,.8)); position: absolute; right: 7%; bottom: 13%; z-index: 4; }
.product-calibration-cursor svg { width: 22px; fill: #f6f8fb; stroke: #090d12; }
.product-video-time { padding: 3px 6px; border-radius: 4px; background: rgba(3,6,9,.72); color: rgba(255,255,255,.72); font: 700 8px ui-monospace, monospace; position: absolute; left: 8px; bottom: 6px; }
.product-calibration-toolbar { padding: 0 9px; display: grid; grid-template-columns: 1fr auto 26px; align-items: center; gap: 8px; border-top: 1px solid rgba(255,255,255,.08); background: #0c1219; }
.product-calibration-toolbar > span { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 9px; }
.product-calibration-toolbar > span svg { width: 14px; color: var(--primary); }
.product-calibration-toolbar strong { color: var(--text); font-size: 9px; }
.product-calibration-toolbar > i { width: 24px; height: 24px; display: grid; place-items: center; border-radius: 7px; background: var(--primary); color: #17100d; }
.product-calibration-toolbar > i svg { width: 14px; }
.product-analysis-view { min-height: 175px; overflow: hidden; display: grid; grid-template-rows: minmax(0, 1fr) auto; border: 1px solid rgba(255,255,255,.08); border-radius: 14px; background: #080d13; }
.product-analysis-frame { --scan-travel: 440px; min-height: 0; }
.product-analysis-frame .product-player { opacity: .48; }
.product-ball-path { width: 100%; height: 100%; overflow: visible; position: absolute; inset: 0; z-index: 3; }
.product-ball-path path { fill: none; stroke: rgba(255,107,44,.65); stroke-width: 1.5; stroke-dasharray: 4 6; }
.product-ball-path circle { fill: rgba(255,107,44,.7); }
.product-ball-tracker { width: 29px; height: 29px; border: 1px dashed rgba(255,255,255,.8); border-radius: 5px; offset-path: path("M 0 46 C 82 -25 198 -31 292 6"); offset-rotate: 0deg; position: absolute; left: 11%; top: 26%; z-index: 5; }
.product-ball-tracker i { width: 13px; height: 13px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 16px rgba(255,107,44,.55); position: absolute; left: 7px; top: 7px; }
.product-analysis-scan { width: 1px; background: linear-gradient(transparent, rgba(78,215,154,.8), transparent); box-shadow: 0 0 14px rgba(78,215,154,.35); position: absolute; inset: 6% auto 6% 0; z-index: 4; }
.product-analysis-badge { padding: 4px 7px; border: 1px solid rgba(78,215,154,.24); border-radius: 999px; background: rgba(7,15,14,.78); color: var(--green); font: 700 8px ui-monospace, monospace; position: absolute; left: 8px; top: 8px; z-index: 6; }
.product-detection { padding: 10px 12px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 3px 12px; border: 1px solid rgba(78,215,154,.2); border-radius: 10px; background: rgba(9,13,18,.88); }
.product-analysis-view .product-detection { margin: 7px; }
.product-detection span { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 10px; }
.product-detection span i { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(78,215,154,.08); }
.product-detection strong { grid-row: 1 / 3; grid-column: 2; color: var(--green); font: 750 17px ui-monospace, monospace; }
.product-detection small { color: var(--faint); font-size: 9px; }
.product-export-view { min-height: 175px; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(126px, .65fr); gap: 9px; }
.product-review-panel { min-width: 0; overflow: hidden; display: grid; grid-template-rows: 30px minmax(0, 1fr); border: 1px solid rgba(255,255,255,.09); border-radius: 12px; background: #0b1118; }
.product-review-heading { padding: 0 9px; display: flex; align-items: center; justify-content: space-between; gap: 8px; border-bottom: 1px solid rgba(255,255,255,.07); }
.product-review-heading strong { font-size: 9px; }
.product-review-heading span { color: var(--green); font-size: 8px; }
.product-review-list { padding: 5px; display: grid; gap: 4px; }
.product-review-list > span { min-width: 0; padding: 0 7px; display: grid; grid-template-columns: 21px minmax(0, 1fr) auto; align-items: center; gap: 7px; border: 1px solid rgba(78,215,154,.13); border-radius: 7px; background: rgba(78,215,154,.045); }
.product-review-list i { width: 19px; height: 19px; display: grid; place-items: center; border-radius: 6px; background: var(--green); color: #07110d; }
.product-review-list i svg { width: 12px; }
.product-review-list b { overflow: hidden; color: var(--text); font: 700 9px ui-monospace, monospace; text-overflow: ellipsis; white-space: nowrap; }
.product-review-list small { color: var(--muted); font-size: 8px; white-space: nowrap; }
.product-export-ready { min-width: 0; padding: 12px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; border: 1px solid rgba(255,107,44,.25); border-radius: 12px; background: linear-gradient(145deg, rgba(255,107,44,.13), transparent 62%), #0c1117; position: relative; }
.product-export-ready > span { width: 34px; height: 34px; margin-bottom: 10px; display: grid; place-items: center; border-radius: 10px; background: var(--primary); color: #17100d; }
.product-export-ready svg { width: 18px; }
.product-export-ready > svg { color: var(--primary); position: absolute; right: 10px; top: 10px; }
.product-export-ready div { min-width: 0; display: grid; gap: 3px; }
.product-export-ready small { color: var(--primary); font: 700 8px ui-monospace, monospace; }
.product-export-ready strong { font-size: 12px; }
.product-export-ready em { color: var(--faint); font-size: 8px; font-style: normal; }
.product-generated-visual { min-height: 0; overflow: hidden; border: 1px solid rgba(255,255,255,.1); border-radius: 14px; background: #080d13; box-shadow: inset 0 0 0 1px rgba(0,0,0,.22), 0 14px 34px rgba(0,0,0,.2); position: relative; isolation: isolate; }
.product-generated-visual::after { content: ""; background: linear-gradient(180deg, transparent 62%, rgba(2,5,8,.2)); position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.product-generated-visual img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: center; filter: saturate(.94) contrast(1.03); transform: scale(1.018); }
.product-generated-visual > span { position: absolute; pointer-events: none; z-index: 3; }
.product-visual-sheen { width: 34%; background: linear-gradient(90deg, transparent, rgba(255,255,255,.1), transparent); transform: skewX(-18deg) translateX(-180%); inset: 0 auto 0 0; }
.product-visual-focus { width: 25%; aspect-ratio: 1.18; border-radius: 18px; background: radial-gradient(circle, rgba(255,107,44,.14), transparent 70%); filter: blur(7px); right: 13%; top: 13%; }
.product-visual-scan { width: 2px; background: linear-gradient(transparent, rgba(78,215,154,.1), rgba(78,215,154,.78), rgba(78,215,154,.1), transparent); box-shadow: 0 0 18px rgba(78,215,154,.5); inset: 5% auto 5% 0; }
.product-visual-ready { width: 28%; border-radius: 50%; background: radial-gradient(circle, rgba(78,215,154,.12), transparent 68%); filter: blur(4px); aspect-ratio: 1; right: 1%; top: 9%; }
.product-steps { margin: 12px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; list-style: none; }
.product-steps li { min-width: 0; }
.product-steps button { width: 100%; min-height: 58px; padding: 7px 8px; display: grid; grid-template-columns: 28px minmax(0, 1fr); align-items: center; gap: 8px; border: 1px solid transparent; border-radius: 11px; background: transparent; color: var(--faint); text-align: left; cursor: pointer; transition: color .2s ease, border-color .2s ease, background-color .2s ease, transform .2s ease; }
.product-steps button:hover { border-color: var(--line); background: rgba(255,255,255,.025); color: var(--muted); }
.product-steps button:active { transform: scale(.98); }
.product-steps button > span:first-child { width: 28px; height: 28px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; font: 700 10px ui-monospace, monospace; transition: background-color .2s ease, border-color .2s ease, color .2s ease; }
.product-steps button > span:last-child { min-width: 0; display: grid; gap: 2px; }
.product-steps strong { font-size: 10px; }
.product-steps small { overflow: hidden; font-size: 8px; text-overflow: ellipsis; white-space: nowrap; }
.product-steps button.is-active { border-color: rgba(255,107,44,.22); background: var(--primary-soft); color: var(--text); }
.product-steps button.is-active > span:first-child { border-color: var(--primary); background: var(--primary); color: #17100d; }
.product-demo-progress { height: 2px; margin: 8px 8px 0; overflow: hidden; border-radius: 999px; background: rgba(255,255,255,.07); }
.product-demo-progress span { width: 100%; height: 100%; display: block; border-radius: inherit; background: linear-gradient(90deg, var(--primary), var(--green)); transform: scaleX(0); transform-origin: left; }
.landing-product-card.is-running .product-demo-progress span { animation: product-demo-progress var(--demo-duration) linear forwards; }
.landing-product-card.is-paused .product-demo-progress span { animation-play-state: paused; }
.landing-product-card.is-paused .product-scene.is-active :is(.product-calibration-box, .product-calibration-cursor, .product-ball-tracker, .product-analysis-scan) { animation-play-state: paused; }
.product-demo-hint { margin: 8px 8px 0; color: var(--faint); font-size: 9px; line-height: 1.4; text-align: center; }
.product-scene.is-active .product-import-dropzone { animation: product-scene-rise .32s cubic-bezier(.22,.75,.2,1) both; }
.product-scene.is-active .product-calibration-box { animation: product-calibration-pulse 1.8s ease-in-out infinite; }
.product-scene.is-active .product-calibration-cursor { animation: product-cursor-move 1.8s ease-in-out infinite; }
.product-scene.is-active .product-ball-tracker { animation: product-ball-track 2.1s cubic-bezier(.4,0,.2,1) infinite; }
.product-scene.is-active .product-analysis-scan { animation: product-analysis-scan 2.1s ease-in-out infinite; }
.product-scene.is-active .product-review-list > span { animation: product-clip-rise .3s cubic-bezier(.22,.75,.2,1) both; }
.product-scene.is-active .product-review-list > span:nth-child(2) { animation-delay: .07s; }
.product-scene.is-active .product-review-list > span:nth-child(3) { animation-delay: .14s; }
.product-scene.is-active .product-generated-visual { animation: product-visual-reveal .42s cubic-bezier(.22,.75,.2,1) both; }
.product-scene.is-active .product-generated-visual img { animation: product-visual-drift 4.2s ease-out both; }
.product-scene.is-active .product-visual-sheen { animation: product-visual-sheen 2.6s .3s ease-in-out both; }
.product-scene.is-active .product-visual-focus { animation: product-visual-focus 2s ease-in-out infinite; }
.product-scene.is-active .product-visual-scan { animation: product-visual-scan 2.4s ease-in-out infinite; }
.product-scene.is-active .product-visual-ready { animation: product-visual-ready 1.8s ease-in-out infinite; }

@keyframes product-status-pulse { 0%, 55% { box-shadow: 0 0 0 4px rgba(78,215,154,.1); } 100% { box-shadow: 0 0 0 11px rgba(78,215,154,0); } }
@keyframes product-demo-progress { to { transform: scaleX(1); } }
@keyframes product-scene-rise { from { opacity: 0; transform: translateY(8px); } }
@keyframes product-calibration-pulse { 50% { box-shadow: 0 0 0 999px rgba(0,0,0,.18), 0 0 0 4px rgba(255,107,44,.1), 0 0 28px rgba(255,107,44,.22); } }
@keyframes product-cursor-move { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(-13px, -11px); } }
@keyframes product-ball-track { 0%, 12% { offset-distance: 0%; opacity: 0; } 18%, 78% { opacity: 1; } 84%, 100% { offset-distance: 100%; opacity: 0; } }
@keyframes product-analysis-scan { 0%, 100% { transform: translateX(0); opacity: .2; } 50% { transform: translateX(var(--scan-travel)); opacity: .9; } }
@keyframes product-clip-rise { from { opacity: 0; transform: translateY(7px); } }
@keyframes product-visual-reveal { from { opacity: 0; transform: translateY(8px) scale(.99); } }
@keyframes product-visual-drift { from { transform: scale(1.035); } to { transform: scale(1.018); } }
@keyframes product-visual-sheen { 0% { opacity: 0; transform: skewX(-18deg) translateX(-180%); } 22% { opacity: .7; } 70%, 100% { opacity: 0; transform: skewX(-18deg) translateX(460%); } }
@keyframes product-visual-focus { 50% { opacity: .56; transform: scale(1.08); } }
@keyframes product-visual-scan { 0%, 100% { opacity: .1; transform: translateX(0); } 50% { opacity: .9; transform: translateX(455px); } }
@keyframes product-visual-ready { 50% { opacity: .65; transform: scale(1.08); } }

.landing-feature-section, .landing-split-section { padding: clamp(72px, 9vw, 120px) 0; border-top: 1px solid var(--line); }
.landing-section-heading { max-width: 720px; }
.landing-section-heading h2, .landing-privacy h2, .landing-final-cta h2 { margin: 0; font-size: clamp(34px, 4.2vw, 56px); line-height: 1.1; letter-spacing: -.045em; }
.landing-section-heading > p:last-of-type, .landing-privacy > div > p:last-child, .landing-final-cta p:last-child { margin: 18px 0 0; color: var(--muted); font-size: 16px; line-height: 1.75; }
.landing-feature-grid { margin-top: 40px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.landing-feature-grid article { min-height: 300px; padding: 28px; display: flex; flex-direction: column; align-items: flex-start; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, rgba(255,107,44,.045), transparent 48%), var(--surface); }
.landing-feature-grid article > span { color: var(--primary); font: 850 11px ui-monospace, monospace; letter-spacing: .1em; }
.landing-feature-grid article > svg { width: 34px; margin-top: auto; color: var(--primary); }
.landing-feature-grid h3 { margin: 22px 0 0; font-size: 21px; letter-spacing: -.025em; }
.landing-feature-grid p { margin: 12px 0 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.landing-split-section { display: grid; grid-template-columns: minmax(280px, .74fr) minmax(0, 1.26fr); gap: clamp(54px, 9vw, 130px); }
.landing-sticky-heading { align-self: start; position: sticky; top: 108px; }
.landing-text-link { min-height: 44px; margin-top: 24px; display: inline-flex; align-items: center; gap: 8px; color: var(--primary); text-decoration: none; font-size: 14px; font-weight: 800; }
.landing-how-list { margin: 0; padding: 0; list-style: none; }
.landing-how-list li { min-height: 132px; padding: 30px 0; display: grid; grid-template-columns: 62px 1fr; gap: 12px; border-top: 1px solid var(--line); }
.landing-how-list li:last-child { border-bottom: 1px solid var(--line); }
.landing-how-list li > span { padding-top: 3px; color: var(--primary); font: 850 11px ui-monospace, monospace; letter-spacing: .1em; }
.landing-how-list strong { font-size: 19px; }
.landing-how-list p { margin: 9px 0 0; color: var(--muted); font-size: 14px; line-height: 1.65; }

.landing-privacy { margin: 24px 0 clamp(72px, 9vw, 120px); padding: clamp(34px, 6vw, 72px); display: grid; grid-template-columns: auto minmax(0, 1fr) minmax(270px, .72fr); align-items: center; gap: clamp(26px, 5vw, 64px); border: 1px solid rgba(78,215,154,.2); border-radius: 24px; background: linear-gradient(135deg, rgba(78,215,154,.08), transparent 46%), var(--surface); }
.privacy-icon { width: 70px; height: 70px; display: grid; place-items: center; border-radius: 20px; background: rgba(78,215,154,.1); color: var(--green); }
.privacy-icon svg { width: 34px; }
.landing-privacy h2 { font-size: clamp(30px, 3.4vw, 46px); }
.landing-privacy dl { margin: 0; border-block: 1px solid var(--line); }
.landing-privacy dl div { min-height: 60px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); }
.landing-privacy dl div:last-child { border-bottom: 0; }
.landing-privacy dt { color: var(--muted); font-size: 12px; }
.landing-privacy dd { margin: 0; font-size: 13px; font-weight: 800; }
.landing-faq-list { display: grid; gap: 10px; }
.landing-faq-list details { border: 1px solid var(--line); border-radius: 12px; background: var(--surface); overflow: clip; }
.landing-faq-list summary { min-height: 64px; padding: 17px 54px 17px 20px; display: flex; align-items: center; cursor: pointer; font-size: 15px; font-weight: 750; line-height: 1.5; list-style: none; position: relative; }
.landing-faq-list summary::-webkit-details-marker { display: none; }
.landing-faq-list summary::after { content: "+"; position: absolute; right: 20px; top: 50%; color: var(--primary); font: 500 24px/1 ui-monospace, monospace; transform: translateY(-50%); transition: transform .2s ease; }
.landing-faq-list details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.landing-faq-list summary:hover { background: rgba(255,255,255,.025); }
.landing-faq-list p { margin: 0; padding: 0 54px 20px 20px; color: var(--muted); font-size: 14px; line-height: 1.75; }
.landing-final-cta { margin: 24px 0 96px; padding: clamp(36px, 7vw, 80px); display: flex; align-items: flex-end; justify-content: space-between; gap: 44px; border: 1px solid rgba(255,107,44,.24); border-radius: 24px; background: radial-gradient(circle at 90% 10%, rgba(255,107,44,.17), transparent 40%), var(--surface); }
.landing-final-cta > div { max-width: 750px; }
.landing-final-cta .landing-button { flex: 0 0 auto; min-height: 54px; padding-inline: 24px; }

.landing-footer { width: min(1240px, calc(100% - 48px)); margin: 0 auto; padding: 40px 0 calc(48px + env(safe-area-inset-bottom)); display: flex; justify-content: space-between; gap: 48px; border-top: 1px solid var(--line); }
.landing-footer > div:first-child p { margin: 8px 0 0; color: var(--faint); font-size: 12px; }
.landing-footer .landing-brand { min-height: 44px; }
.landing-footer .landing-brand-mark { width: 34px; height: 34px; }
.landing-footer-guides { display: grid; justify-items: start; align-content: start; gap: 6px; font-size: 12px; }
.landing-footer-guides strong { margin-bottom: 3px; }
.landing-footer-guides a { min-height: 44px; display: inline-flex; align-items: center; color: var(--muted); text-decoration: none; }
.landing-footer-guides a:hover { color: var(--primary); }
.landing-contact { display: grid; justify-items: end; gap: 6px; font-size: 12px; }
.landing-contact strong { margin-bottom: 3px; }
.landing-contact a { min-height: 28px; display: inline-flex; align-items: center; color: var(--muted); text-decoration: none; }
.landing-contact a:hover { color: var(--primary); }

@media (max-width: 1020px) {
  .landing-nav { display: none; }
  .landing-header { grid-template-columns: 1fr auto; }
  .landing-contact-shortcut { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 10px; background: rgba(255,255,255,.025); color: var(--muted); transition: color .2s ease, border-color .2s ease, background-color .2s ease; }
  .landing-contact-shortcut:hover { border-color: rgba(255,255,255,.22); background: rgba(255,255,255,.06); color: var(--text); }
  .landing-contact-shortcut svg { width: 18px; }
  .landing-hero { grid-template-columns: 1fr; }
  .landing-hero-copy { max-width: 780px; }
  .landing-product-card { width: min(680px, 100%); margin: 0 auto; transform: none; }
  .landing-feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .landing-feature-grid article { min-height: 230px; }
  .landing-split-section { grid-template-columns: 1fr; gap: 38px; }
  .landing-sticky-heading { position: static; }
  .landing-privacy { grid-template-columns: auto 1fr; }
  .landing-privacy dl { grid-column: 1 / -1; }
}

@media (max-width: 700px) {
  .landing-header { min-height: calc(64px + env(safe-area-inset-top)); padding: env(safe-area-inset-top) max(12px, env(safe-area-inset-right)) 0 max(12px, env(safe-area-inset-left)); gap: 8px; }
  .landing-brand { gap: 8px; font-size: 14px; }
  .landing-brand-mark { width: 34px; height: 34px; }
  .landing-brand small { display: none; }
  .landing-button-small { width: 44px; min-height: 44px; padding: 0; font-size: 0; }
  .landing-button-small::after { content: "→"; font-size: 18px; }
  .landing-locales { padding: 2px; }
  .landing-locales a { min-width: 36px; min-height: 38px; }
  main, .landing-footer { width: min(100% - 24px, 1240px); }
  .landing-hero { min-height: auto; padding: 68px 0 72px; grid-template-columns: 1fr; gap: 48px; }
  .landing-hero h1 { font-size: clamp(40px, 12vw, 54px); }
  .landing-lede { margin-top: 20px; font-size: 16px; line-height: 1.7; }
  .landing-hero-actions { display: grid; grid-template-columns: 1fr; }
  .landing-hero-actions .landing-button { width: 100%; }
  .landing-trust { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
  .landing-product-card { padding: 10px; border-radius: 18px; }
  .product-card-top { min-height: 46px; padding-inline: 4px; }
  .product-demo-stage { min-height: 288px; }
  .product-scene { padding: 20px; gap: 15px; }
  .product-scene-heading h2 { font-size: 19px; }
  .product-scene-heading p { font-size: 11px; }
  .product-generated-visual img { object-fit: contain; transform: none; }
  .product-scene.is-active .product-generated-visual img { animation: none; transform: none; }
  .product-import-dropzone, .product-calibration-view, .product-analysis-view, .product-export-view { min-height: 168px; }
  .product-gym-window { width: 34%; }
  .product-scene-backboard { right: 7%; }
  .product-scene-rim { right: 13.5%; }
  .product-calibration-box { right: 8.5%; }
  .product-analysis-frame { --scan-travel: 260px; }
  .product-ball-tracker { offset-path: path("M 0 46 C 57 -17 132 -26 196 5"); }
  .product-detection { grid-template-columns: 1fr auto; }
  .product-export-view { grid-template-columns: minmax(0, 1fr) minmax(110px, .72fr); gap: 7px; }
  .product-review-heading { padding-inline: 7px; }
  .product-review-heading span { font-size: 7px; }
  .product-review-list > span { padding-inline: 5px; grid-template-columns: 19px minmax(0, 1fr); gap: 5px; }
  .product-review-list small { display: none; }
  .product-export-ready { padding: 10px; }
  .product-export-ready > span { width: 30px; height: 30px; margin-bottom: 8px; }
  .product-export-ready strong { font-size: 11px; }
  .product-steps { gap: 3px; }
  .product-steps button { min-height: 58px; padding: 6px 2px; grid-template-columns: 1fr; justify-items: center; gap: 4px; text-align: center; }
  .product-steps button > span:last-child { justify-items: center; }
  .product-steps small { display: none; }
  .landing-feature-section, .landing-split-section { padding: 72px 0; }
  .landing-section-heading h2, .landing-final-cta h2 { font-size: clamp(32px, 9vw, 42px); }
  .landing-section-heading > p:last-of-type { font-size: 15px; }
  .landing-feature-grid { margin-top: 28px; }
  .landing-feature-grid { grid-template-columns: 1fr; }
  .landing-feature-grid article { min-height: 244px; padding: 22px; }
  .landing-how-list li { min-height: 116px; grid-template-columns: 48px 1fr; }
  .landing-privacy { margin-bottom: 72px; padding: 26px 20px; grid-template-columns: 1fr; border-radius: 18px; }
  .privacy-icon { width: 56px; height: 56px; border-radius: 16px; }
  .landing-privacy dl { grid-column: auto; }
  .landing-faq-list summary { min-height: 68px; padding: 16px 48px 16px 16px; font-size: 14px; }
  .landing-faq-list summary::after { right: 16px; }
  .landing-faq-list p { padding: 0 16px 18px; }
  .landing-final-cta { margin-bottom: 72px; padding: 30px 22px; align-items: stretch; flex-direction: column; border-radius: 18px; }
  .landing-final-cta .landing-button { width: 100%; }
  .landing-footer { padding-top: 32px; align-items: flex-start; flex-direction: column; }
  .landing-footer-guides { width: 100%; }
  .landing-contact { justify-items: start; }
  .landing-contact a { min-height: 32px; }
}

@media (max-width: 380px) {
  .landing-header { padding-inline: 8px; }
  .landing-actions { gap: 5px; }
  .landing-locales a { min-width: 34px; }
  main, .landing-footer { width: min(100% - 20px, 1240px); }
  .landing-trust { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .product-demo-progress { display: none; }
}