:root {
  color-scheme: dark;
  --acid: #b7ff45;
  --cyan: #55dfd2;
  --ink: #050805;
  --paper: #f5faef;
  --muted: #b6c0b1;
  --line: rgba(255,255,255,.14);
  --nav-height: 62px;
  --radius-pill: 999px;
  --radius-panel: 8px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: #020403; }
body { color: var(--paper); font-family: Inter, "Segoe UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  isolation: isolate;
  background: #020403;
}

.scene-stack { position: absolute; inset: 0; z-index: -3; overflow: hidden; background: #020403; }
.scene-frame {
  position: absolute;
  top: 88px;
  left: 0;
  width: 100%;
  height: calc(100% - 88px);
  object-fit: contain;
  object-position: center bottom;
  opacity: 0;
  transition: opacity 1.15s ease;
}
.scene-k1 { opacity: 1; }
.hero[data-scene="k2"] .scene-k1,
.hero[data-scene="k3"] .scene-k1 { opacity: 0; }
.hero[data-scene="k2"] .scene-k2,
.hero[data-scene="k3"] .scene-k2 { opacity: 1; }
.hero[data-scene="k3"] .scene-k3 { opacity: 1; }

.hero-scene-video {
  position: absolute;
  z-index: 2;
  top: 88px;
  left: 0;
  width: 100%;
  height: calc(100% - 88px);
  object-fit: cover;
  object-position: center bottom;
  pointer-events: none;
}

.scene-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(1,4,2,.42) 0%, rgba(1,4,2,.08) 47%, rgba(1,4,2,.08) 78%, rgba(1,4,2,.34) 100%); pointer-events: none; }
.light-sweep { position: absolute; top: -25%; bottom: -25%; left: 53%; width: 12%; opacity: 0; background: linear-gradient(90deg, transparent, rgba(224,255,206,.14), rgba(255,225,174,.08), transparent); filter: blur(22px); pointer-events: none; }
.hero[data-active="true"] .light-sweep { animation: light-sweep 7.8s cubic-bezier(.22,.61,.36,1) .8s both; }
.care-scan { position: absolute; left: 55%; top: 11%; width: 15%; height: 1px; opacity: 0; background: linear-gradient(90deg, transparent, var(--cyan), var(--acid), transparent); box-shadow: 0 0 22px rgba(98,241,197,.68); pointer-events: none; }
.hero[data-scene="k3"] .care-scan { animation: care-scan 1.6s ease-out both; }

@keyframes light-sweep {
  0% { opacity: 0; translate: -65% 0; }
  16% { opacity: .25; }
  72% { opacity: .7; }
  100% { opacity: 0; translate: 175% 0; }
}
@keyframes care-scan {
  0% { opacity: 0; translate: 0 0; }
  18% { opacity: .72; }
  100% { opacity: 0; translate: 0 68svh; }
}

.nav-shell {
  position: absolute;
  z-index: 20;
  top: 18px;
  left: 50%;
  translate: -50% 0;
  width: min(1400px, calc(100% - 40px));
  height: var(--nav-height);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 14px 0 16px;
  border: 1px solid rgba(226,255,213,.13);
  border-radius: var(--radius-pill);
  background:
    linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.018)),
    rgba(4,8,5,.78);
  backdrop-filter: blur(22px) saturate(1.12);
  box-shadow: 0 18px 70px rgba(0,0,0,.28), inset 0 1px 0 rgba(255,255,255,.08);
}
.brand { display: inline-flex; align-items: center; gap: 11px; width: max-content; padding: 6px 11px 6px 8px; border-radius: var(--radius-pill); background: rgba(255,255,255,.035); box-shadow: inset 0 0 0 1px rgba(255,255,255,.055); }
.brand img { width: 76px; height: 30px; object-fit: contain; filter: drop-shadow(0 0 11px rgba(183,255,69,.12)); }
.brand span { max-width: 76px; color: #dbe7d4; font-size: 10px; line-height: 1.05; text-transform: uppercase; font-weight: 740; }
.nav-links { display: flex; gap: 34px; color: #cad3c5; font-size: 13px; font-weight: 650; }
.nav-links a { position: relative; transition: color .2s ease, text-shadow .2s ease; }
.nav-links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -9px; height: 1px; opacity: 0; background: linear-gradient(90deg, transparent, var(--acid), transparent); transition: opacity .2s ease; }
.nav-links a:hover { color: white; text-shadow: 0 0 16px rgba(183,255,69,.28); }
.nav-links a:hover::after { opacity: .9; }
.nav-actions { justify-self: end; display: flex; align-items: center; gap: 10px; }
.language-switch { display: grid; grid-template-columns: 34px 38px; height: 36px; padding: 3px; border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-pill); background: rgba(255,255,255,.045); }
.language-switch button { border: 0; border-radius: var(--radius-pill); color: #aeb8aa; background: transparent; cursor: pointer; transition: color .2s ease, background .2s ease; }
.language-switch button[aria-pressed="true"] { color: #101705; background: var(--acid); font-weight: 800; box-shadow: 0 0 18px rgba(183,255,69,.22); }
.ask-button, .primary-action, .secondary-action { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 42px; border: 0; border-radius: var(--radius-pill); cursor: pointer; font-weight: 760; transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease; }
.ask-button { padding: 0 16px; color: #101705; background: var(--acid); box-shadow: 0 0 24px rgba(183,255,69,.18); }
.ask-button:hover, .primary-action:hover { transform: translateY(-1px); box-shadow: 0 12px 30px rgba(183,255,69,.2); }
.ask-button i, .primary-action i, .secondary-action i { width: 17px; height: 17px; }

.hero-copy { position: absolute; z-index: 5; left: max(40px, calc((100vw - 1400px) / 2)); top: 50%; translate: 0 -43%; width: min(620px, 43vw); }
.kicker { margin: 0 0 18px; color: var(--acid); font-size: 12px; font-weight: 820; text-transform: uppercase; }
h1 { margin: 0; max-width: 620px; color: #f7fbf1; font-size: clamp(52px, 4.5vw, 74px); line-height: .98; font-weight: 840; letter-spacing: 0; }
.lead { max-width: 540px; margin: 25px 0 0; color: #c7d1c2; font-size: 17px; line-height: 1.75; overflow-wrap: anywhere; }
.hero-actions { display: flex; gap: 12px; margin-top: 28px; }
.primary-action { padding: 0 20px; color: #101705; background: var(--acid); box-shadow: 0 0 24px rgba(183,255,69,.16); }
.secondary-action { padding: 0 18px; color: #edf4e9; border: 1px solid rgba(255,255,255,.18); background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03)), rgba(7,12,8,.58); backdrop-filter: blur(14px); }
.secondary-action:hover { transform: translateY(-1px); border-color: rgba(183,255,69,.34); background-color: rgba(10,20,13,.72); }
.evidence-rail { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 0; margin-top: 40px; border-top: 1px solid rgba(255,255,255,.18); }
.evidence-rail div { min-height: 68px; padding: 14px 18px 0 0; }
.evidence-rail div + div { padding-left: 18px; border-left: 1px solid rgba(255,255,255,.13); }
.evidence-rail span { display: block; color: #84927e; font-size: 9px; font-weight: 800; }
.evidence-rail strong { display: block; margin-top: 7px; font-size: 14px; font-weight: 720; }

[data-motion] { opacity: 0; translate: 0 18px; animation: copy-rise .82s cubic-bezier(.2,.7,.2,1) forwards; }
[data-motion="kicker"] { animation-delay: .18s; }
[data-motion="headline"] { animation-delay: .34s; }
[data-motion="support"] { animation-delay: .52s; }
[data-motion="actions"] { animation-delay: .7s; }
[data-motion="evidence"] { animation-delay: .88s; }
@keyframes copy-rise {
  to { opacity: 1; translate: 0 0; }
}
.hero[data-progress="intro"] [data-motion="kicker"],
.hero[data-progress="headline"] [data-motion="kicker"],
.hero[data-progress="support"] [data-motion="kicker"],
.hero[data-progress="actions"] [data-motion="kicker"],
.hero[data-progress="settled"] [data-motion] { opacity: 1; translate: 0 0; }
.hero[data-progress="headline"] [data-motion="headline"],
.hero[data-progress="support"] [data-motion="headline"],
.hero[data-progress="actions"] [data-motion="headline"] { opacity: 1; translate: 0 0; }
.hero[data-progress="support"] [data-motion="support"],
.hero[data-progress="actions"] [data-motion="support"] { opacity: 1; translate: 0 0; }
.hero[data-progress="actions"] [data-motion="actions"] { opacity: 1; translate: 0 0; }

.growai-companion { position: fixed; z-index: 55; right: 24px; bottom: 18px; }
.growai-trigger { position: relative; width: 104px; height: 118px; padding: 0; border: 0; background: transparent; filter: drop-shadow(0 18px 24px rgba(0,0,0,.5)) drop-shadow(0 0 18px rgba(183,255,69,.18)); }
.growai-trigger img { width: 100%; height: 100%; object-fit: contain; pointer-events: none; animation: growai-idle 4.2s ease-in-out infinite; }
.growai-trigger:focus-visible { outline: 2px solid var(--acid); outline-offset: 4px; border-radius: 50%; }
.growai-status { position: absolute; right: 10px; bottom: 15px; width: 12px; height: 12px; border: 2px solid #071009; border-radius: 50%; background: var(--acid); box-shadow: 0 0 14px rgba(183,255,69,.9); }
.growai-nudge { position: absolute; right: 94px; bottom: 40px; width: max-content; max-width: 220px; padding: 10px 14px; border: 1px solid rgba(183,255,69,.2); border-radius: var(--radius-pill); color: #edf7e7; background: rgba(5,12,8,.86); backdrop-filter: blur(18px); box-shadow: 0 14px 44px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.08); font-size: 13px; font-weight: 700; line-height: 1.4; transition: opacity .2s ease, transform .2s ease; }
.growai-trigger:hover + .growai-nudge, .growai-trigger[aria-expanded="true"] + .growai-nudge { opacity: 0; transform: translateX(8px); }
@keyframes growai-idle { 0%,100% { translate: 0 0; } 50% { translate: 0 -6px; } }

.growai-panel { position: fixed; z-index: 54; right: 28px; bottom: 142px; width: min(390px, calc(100vw - 32px)); max-height: min(620px, calc(100dvh - 178px)); display: grid; grid-template-rows: auto minmax(120px, 1fr) auto auto; gap: 14px; padding: 18px; border: 1px solid rgba(183,255,69,.22); border-radius: var(--radius-panel); color: var(--paper); background: linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.018)), rgba(5,12,8,.92); backdrop-filter: blur(26px) saturate(1.12); box-shadow: 0 30px 90px rgba(0,0,0,.55), inset 0 1px 0 rgba(255,255,255,.08); opacity: 0; pointer-events: none; transform: translateY(16px) scale(.98); transform-origin: bottom right; transition: opacity .22s ease, transform .22s ease; }
.growai-panel[data-open="true"] { opacity: 1; pointer-events: auto; transform: none; }
.growai-panel-head { display: grid; grid-template-columns: 48px 1fr 36px; align-items: center; gap: 10px; }
.growai-panel-head img { width: 48px; height: 48px; object-fit: contain; }
.growai-panel-head h2 { margin: 0 0 2px; font-size: 18px; }
.growai-panel-head p { margin: 0; color: #91a08e; font-size: 12px; }
.icon-button { width: 36px; height: 36px; display: grid; place-items: center; padding: 0; border: 1px solid rgba(255,255,255,.12); border-radius: 50%; color: var(--paper); background: rgba(255,255,255,.06); }
.icon-button i { width: 16px; height: 16px; }
.growai-messages { display: grid; align-content: start; gap: 9px; overflow-y: auto; padding-right: 4px; }
.message { max-width: 88%; padding: 10px 12px; border-radius: 15px; font-size: 13px; line-height: 1.55; }
.message.assistant { color: #e9f2e4; border: 1px solid rgba(255,255,255,.1); background: rgba(255,255,255,.055); }
.message.user { justify-self: end; color: #101706; background: var(--acid); border-bottom-right-radius: 5px; }
.growai-quick { display: flex; flex-wrap: wrap; gap: 7px; }
.growai-quick button { padding: 8px 11px; border: 1px solid rgba(255,255,255,.12); border-radius: 999px; color: #dce8d6; background: rgba(255,255,255,.05); font-size: 12px; }
.growai-form { display: grid; grid-template-columns: 1fr 42px; gap: 8px; }
.growai-form input { min-width: 0; height: 42px; padding: 0 14px; border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius-pill); color: var(--paper); background: rgba(255,255,255,.06); outline: none; }
.growai-form input:focus { border-color: rgba(183,255,69,.62); }
.growai-form .icon-button { width: 42px; height: 42px; color: #101706; border-color: var(--acid); background: var(--acid); }

@media (max-width: 980px) {
  .nav-shell { top: 10px; width: calc(100% - 20px); grid-template-columns: 1fr auto; }
  .nav-links, .ask-button { display: none; }
  .hero-copy { left: 24px; top: auto; bottom: 116px; translate: 0; width: min(560px, calc(100vw - 48px)); }
  h1 { font-size: clamp(46px, 10vw, 68px); }
  .lead { max-width: 500px; }
  .hero-scene-video { object-position: 58% center; }
}

@media (max-width: 640px) {
  .hero { min-height: 100svh; }
  .scene-stack { top: 64px; height: 46svh; bottom: auto; }
  .scene-stack::after { content: ""; position: absolute; inset: auto 0 0; height: 34%; background: linear-gradient(transparent, #020403); }
  .scene-frame {
    top: 0;
    height: 100%;
    object-fit: cover;
    object-position: 66% 50%;
  }
  .hero-scene-video { top: 0; height: 100%; object-position: 66% center; }
  .scene-shade { background: linear-gradient(180deg, rgba(2,4,3,.05), rgba(2,4,3,.08) 62%, rgba(2,4,3,.88)); }
  .nav-shell { height: 54px; padding-left: 10px; }
  .brand { gap: 8px; }
  .brand img { width: 66px; height: 28px; }
  .brand span { font-size: 8px; }
  .language-switch { grid-template-columns: 30px 34px; height: 32px; }
  .hero-copy { left: 18px; bottom: 78px; width: calc(100vw - 36px); }
  .kicker { margin-bottom: 11px; font-size: 10px; }
  h1 { max-width: 340px; font-size: clamp(36px, 10.5vw, 44px); line-height: 1.03; }
  .lead { margin-top: 14px; font-size: 13px; line-height: 1.62; }
  .hero-actions { margin-top: 17px; }
  .primary-action, .secondary-action { min-height: 40px; padding: 0 14px; font-size: 12px; }
  .evidence-rail { display: none; }
  .growai-companion { right: 10px; bottom: 10px; }
  .growai-trigger { width: 76px; height: 88px; }
  .growai-nudge { display: none; }
  .growai-panel { right: 12px; bottom: 110px; max-height: calc(100dvh - 126px); }
}

@media (prefers-reduced-motion: reduce) {
  .scene-k1, .scene-k3, .light-sweep, .care-scan { display: none; }
  .scene-k2 { opacity: 1 !important; }
  [data-motion], .growai-companion { opacity: 1 !important; translate: 0 0 !important; transition: none !important; animation: none !important; }
  .growai-trigger img { animation: none; }
}