:root {
  --bg: #020817;
  --bg-deep: #01050e;
  --surface: rgba(8, 22, 50, 0.58);
  --surface-strong: rgba(8, 24, 58, 0.82);
  --line: rgba(111, 169, 255, 0.22);
  --line-bright: rgba(104, 181, 255, 0.62);
  --text: #f3f7ff;
  --muted: #8d9bb8;
  --blue: #47a8ff;
  --violet: #785cff;
  --orange: #ff7847;
  --orange-light: #ffac73;
  --max: 1440px;
  --gutter: clamp(22px, 5vw, 76px);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg-deep); }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 82% 12%, rgba(36, 81, 176, 0.16), transparent 28%),
    linear-gradient(180deg, #010612 0%, #031026 46%, #010713 100%);
  font-family: "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
#overview, #positioning, #capabilities, #scenarios, #contact { scroll-margin-top:112px; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
svg { width: 22px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.page-noise { position: fixed; inset: 0; z-index: 100; pointer-events: none; opacity: .05; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.88' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.45'/%3E%3C/svg%3E"); }

.site-header {
  position: fixed; z-index: 50; top: 18px; left: 50%; transform: translateX(-50%);
  width: min(calc(100% - 44px), var(--max)); height: 72px;
  display: flex; align-items: center; justify-content: space-between; padding: 0 24px 0 26px;
  border: 1px solid var(--line); border-radius: 20px;
  background: rgba(2, 11, 28, .64); backdrop-filter: blur(24px) saturate(145%);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .25), inset 0 1px rgba(255,255,255,.04);
  transition: background .3s, top .3s;
}
.site-header.scrolled { top: 10px; background: rgba(2, 9, 23, .88); }
.brand { display: inline-flex; align-items: center; gap: 9px; font-size: 19px; font-weight: 560; letter-spacing: .02em; white-space: nowrap; }
.brand b { color: var(--orange); font-weight: 650; padding-left: 9px; border-left: 1px solid rgba(255,255,255,.35); }
.brand-mark { position: relative; width: 31px; height: 28px; display: inline-block; }
.brand-mark i { position: absolute; width: 19px; height: 19px; border: 2px solid #9dcaff; border-radius: 6px; transform: rotate(45deg); top: 4px; }
.brand-mark i:first-child { left: 1px; border-color: var(--blue); }
.brand-mark i:last-child { right: 1px; border-color: #8b72ff; }
.main-nav { display: flex; align-items: center; gap: clamp(20px, 3vw, 48px); font-size: 14px; color: #bac6dd; }
.main-nav a { position: relative; padding: 12px 0; transition: color .25s; }
.main-nav a::after { content:""; position:absolute; left:0; right:100%; bottom:3px; height:1px; background:var(--orange); transition:right .25s; }
.main-nav a:hover { color: #fff; }
.main-nav a:hover::after { right: 0; }
.menu-toggle { display:none; border:0; background:none; width:38px; height:38px; padding:10px; }
.menu-toggle span { display:block; height:1px; background:#fff; margin:6px 0; transition:.3s; }

.hero { min-height: 930px; height: 100vh; max-height: 1120px; position: relative; overflow: hidden; display: grid; align-items: center; padding: 130px var(--gutter) 80px; }
.hero-media { position:absolute; inset:0; background-image:url("./AI数字人IP.png"); background-size:cover; background-position:center; transform:scale(1.02); animation: heroBreath 14s ease-in-out infinite alternate; }
@keyframes heroBreath { to { transform: scale(1.055); } }
.hero-shade { position:absolute; inset:0; background: linear-gradient(90deg, rgba(1,5,15,.97) 0%, rgba(1,7,20,.92) 28%, rgba(2,9,26,.36) 56%, rgba(2,8,22,.08) 83%), linear-gradient(0deg, #020817 0%, transparent 20%, rgba(1,5,14,.16) 100%); }
.hero-content { position:relative; z-index:2; width:min(760px, 55vw); margin-left:max(0px, calc((100vw - var(--max))/2)); }
.section-index { display:flex; align-items:center; gap:13px; margin-bottom:40px; font-size:13px; letter-spacing:.1em; }
.section-index span { color:var(--orange); font-size:20px; }
.section-index i { display:block; width:34px; height:1px; background:rgba(255,255,255,.38); }
.section-index em { color:#91a1c2; font-style:normal; }
.hero h1 { margin:0; font-size:clamp(52px, 5.1vw, 82px); line-height:1.12; letter-spacing:-.055em; font-weight:620; text-shadow:0 14px 50px rgba(0,0,0,.55); }
.hero h1 span { display:block; white-space:nowrap; }
.hero-content > p { max-width:590px; margin:30px 0 0; color:#abb9d2; font-size:18px; line-height:1.9; }
.hero-actions { display:flex; gap:16px; margin-top:42px; }
.button { min-height:58px; display:inline-flex; align-items:center; justify-content:center; gap:34px; padding:0 28px; border-radius:14px; font-size:15px; font-weight:580; border:1px solid transparent; transition:transform .25s, border-color .25s, box-shadow .25s; }
.button:hover { transform:translateY(-3px); }
.button-primary { background:linear-gradient(135deg, #ff9b53, #e94e28); box-shadow:0 14px 42px rgba(255,102,54,.25), inset 0 1px rgba(255,255,255,.4); }
.button-primary:hover { box-shadow:0 18px 54px rgba(255,102,54,.38); }
.button-ghost { border-color:rgba(153,190,255,.32); background:rgba(5,17,42,.32); backdrop-filter:blur(12px); color:#dce7fb; }
.button-ghost:hover { border-color:var(--line-bright); }
.hero-glass { position:absolute; z-index:3; right:max(var(--gutter), calc((100vw - var(--max))/2 + 20px)); bottom:15%; width:min(340px, 25vw); display:flex; gap:18px; padding:25px; border:1px solid rgba(117,178,255,.32); border-radius:22px; background:linear-gradient(135deg, rgba(16,44,93,.64), rgba(4,14,38,.76)); backdrop-filter:blur(20px) saturate(150%); box-shadow:0 28px 80px rgba(0,0,0,.38), inset 0 1px rgba(255,255,255,.12); }
.glass-icon { flex:0 0 50px; width:50px; height:50px; display:grid; place-items:center; border:1px solid rgba(109,181,255,.42); border-radius:13px; background:rgba(29,87,174,.18); }
.glass-icon span { width:18px; height:18px; border:2px solid #9cd0ff; transform:rotate(30deg); box-shadow:0 0 16px #168eff; }
.hero-glass small { color:var(--orange-light); letter-spacing:.08em; font-size:9px; }
.hero-glass h2 { margin:7px 0 9px; font-size:20px; }
.hero-glass p { margin:0; color:#afbdd5; font-size:13px; line-height:1.8; }
.scroll-hint { position:absolute; z-index:3; left:calc(var(--gutter) + max(0px, (100vw - var(--max))/2)); bottom:36px; display:flex; align-items:center; gap:13px; color:#7484a4; font-size:9px; letter-spacing:.16em; writing-mode:vertical-rl; }
.scroll-hint span { width:22px; height:34px; border:1px solid #607392; border-radius:12px; position:relative; }
.scroll-hint span::after { content:""; position:absolute; top:7px; left:50%; width:2px; height:7px; background:#a8b9d8; border-radius:2px; animation:scroll 1.8s infinite; }
@keyframes scroll { 0%{transform:translate(-50%,0);opacity:0} 40%{opacity:1} 100%{transform:translate(-50%,10px);opacity:0} }

.positioning { max-width:var(--max); margin:0 auto; padding:150px var(--gutter); display:grid; grid-template-columns:1.12fr .88fr; align-items:end; gap:80px; border-bottom:1px solid rgba(121,165,228,.12); }
.section-kicker { display:flex; align-items:center; gap:14px; color:var(--orange); }
.section-number { color:var(--orange); font-size:14px; }
.section-label-en { font-size:12px; font-weight:600; letter-spacing:.08em; }
.display-quote { margin:28px 0 0; font-size:clamp(34px,4vw,62px); line-height:1.35; letter-spacing:-.035em; font-weight:530; }
.display-quote span { color:#72b8ff; }
.compare { display:grid; grid-template-columns:1fr 44px 1fr; align-items:center; gap:20px; padding-bottom:12px; }
.compare small { color:#657492; font-size:10px; letter-spacing:.14em; }
.compare p { margin:12px 0 0; color:#71809e; line-height:1.8; font-size:13px; }
.compare svg { color:#536685; width:40px; }
.compare-active { padding:24px; border-left:1px solid var(--line-bright); background:linear-gradient(90deg, rgba(30,90,172,.16), transparent); }
.compare-active small { color:var(--orange-light); }
.compare-active p { color:#d7e3f7; }

.scenarios { max-width:var(--max); margin:0 auto; padding:120px var(--gutter) 150px; }
.section-heading { display:grid; grid-template-columns:1.12fr .88fr; align-items:end; gap:80px; }
.section-heading span, .visual-copy > span, .contact-copy > span { color:var(--orange-light); font-size:11px; letter-spacing:.15em; }
.section-heading h2, .visual-copy h2, .contact h2 { margin:22px 0 0; font-size:clamp(42px,5vw,72px); line-height:1.15; letter-spacing:-.045em; font-weight:580; }
.section-heading > p { margin:0 0 8px; color:#8f9db8; font-size:16px; line-height:1.9; max-width:480px; }

.feature-visual { max-width:var(--max); margin:0 auto; padding:58px var(--gutter) 130px; }
.capability-stage {
  position:relative;
  min-height:850px;
  overflow:hidden;
  isolation:isolate;
  border:1px solid rgba(117,181,255,.46);
  border-radius:32px;
  background:#020817 url("./assets/capabilities/03-multimodal-interaction.jpg") 50% 50% / cover no-repeat;
  box-shadow:0 44px 120px rgba(0,20,68,.48),inset 0 1px rgba(255,255,255,.1);
}
.capability-stage::before {
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:linear-gradient(90deg,rgba(1,7,20,.62) 0%,transparent 43%,rgba(1,6,18,.12) 70%,rgba(1,6,18,.48) 100%);
}
.capability-stage-shade {
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(180deg,rgba(1,6,18,.16),transparent 24% 72%,rgba(1,6,18,.76)),
    radial-gradient(circle at 61% 44%,transparent 0 25%,rgba(1,7,20,.16) 59%,rgba(1,7,20,.42) 100%);
}
.interaction-hotspot {
  position:absolute;
  z-index:2;
  top:54%;
  left:48.5%;
  width:22px;
  height:22px;
  border:1px solid rgba(255,255,255,.92);
  border-radius:50%;
  background:radial-gradient(circle,#fff 0 13%,#69dcff 16% 38%,rgba(67,181,255,.16) 42% 100%);
  box-shadow:0 0 12px #7bdcff,0 0 36px rgba(67,166,255,.9),0 0 72px rgba(112,88,255,.55);
  pointer-events:none;
  transform:translate(-50%,-50%);
}
.interaction-hotspot::before,
.interaction-hotspot::after,
.interaction-hotspot span {
  content:"";
  position:absolute;
  inset:-11px;
  border:1px solid rgba(120,216,255,.7);
  border-radius:50%;
  animation:capability-pulse 2.4s cubic-bezier(.2,.7,.2,1) infinite;
}
.interaction-hotspot::after { inset:-22px; border-color:rgba(132,113,255,.45); animation-delay:.8s; }
.interaction-hotspot span { inset:-34px; border-color:rgba(255,133,100,.34); animation-delay:1.6s; }
@keyframes capability-pulse {
  0% { opacity:0; transform:scale(.72); }
  28% { opacity:.9; }
  100% { opacity:0; transform:scale(1.25); }
}
.visual-copy {
  position:absolute;
  z-index:3;
  top:40px;
  left:38px;
  width:440px;
  padding:28px 30px 30px;
  border:1px solid rgba(129,192,255,.22);
  border-radius:22px;
  background:linear-gradient(135deg,rgba(4,18,43,.18),rgba(3,11,28,.045));
  backdrop-filter:blur(3px) saturate(112%);
  box-shadow:0 20px 54px rgba(0,0,0,.08),inset 0 1px rgba(255,255,255,.06);
}
.visual-copy h2 {
  margin:0;
  font-size:clamp(30px,2.4vw,36px);
  line-height:1.2;
  text-shadow:0 3px 22px rgba(0,8,30,.68);
}
.visual-copy h2 .capability-title-line { display:block; color:#83bfff; white-space:nowrap; }
.visual-copy h2 .capability-title-line.is-primary { color:inherit; }
.visual-copy p { max-width:360px; margin:22px 0 0; color:#a6b7d2; font-size:12px; line-height:1.85; }
.visual-copy > i {
  display:block;
  width:42px;
  height:2px;
  margin-top:24px;
  background:linear-gradient(90deg,var(--orange),#ffb176);
  box-shadow:0 0 20px rgba(255,120,71,.34);
}
.capability-focus {
  position:absolute;
  z-index:3;
  left:38px;
  bottom:38px;
  width:440px;
  padding:22px 24px 24px;
  border:1px solid rgba(101,212,255,.58);
  border-radius:20px;
  background:linear-gradient(145deg,rgba(5,34,67,.78),rgba(3,13,34,.54));
  backdrop-filter:blur(18px) saturate(145%);
  box-shadow:0 24px 60px rgba(0,10,38,.38),0 0 34px rgba(62,182,255,.11),inset 0 1px rgba(255,255,255,.1);
}
.capability-focus-top { display:flex; justify-content:space-between; align-items:center; color:#7e95b8; font-size:9px; letter-spacing:.14em; }
.capability-focus-top b { color:#79c7ff; font-size:18px; font-weight:400; letter-spacing:0; }
.capability-focus h3 { margin:12px 0 9px; font-size:21px; font-weight:580; }
.capability-focus > p { min-height:42px; margin:0; color:#a6b6ce; font-size:11px; line-height:1.75; }
.capability-focus-tags { display:flex; flex-wrap:wrap; gap:7px; margin-top:16px; }
.capability-focus-tags span { padding:6px 9px; border:1px solid rgba(108,184,255,.24); border-radius:8px; color:#b8d4ef; background:rgba(23,80,142,.15); font-size:9px; }
.capability-node-grid {
  position:absolute;
  z-index:4;
  top:38px;
  right:34px;
  bottom:38px;
  width:min(48%,640px);
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  grid-template-rows:auto repeat(3,minmax(0,1fr));
  gap:12px;
}
.capability-node-head { grid-column:1/-1; display:flex; align-items:center; justify-content:space-between; min-height:24px; padding:0 3px; color:#7f94b4; font-size:9px; letter-spacing:.14em; }
.capability-node-head b { color:#82ccff; font-size:9px; font-weight:500; }
.capability-node {
  --pointer-x:50%;
  --pointer-y:50%;
  --tilt-x:0deg;
  --tilt-y:0deg;
  --lift:0px;
  position:relative;
  min-width:0;
  min-height:0;
  overflow:hidden;
  padding:0;
  border:1px solid rgba(115,169,244,.26);
  border-radius:18px;
  background:rgba(4,16,40,.7);
  color:inherit;
  text-align:left;
  cursor:pointer;
  backdrop-filter:blur(15px) saturate(135%);
  box-shadow:0 18px 48px rgba(0,8,33,.32),inset 0 1px rgba(255,255,255,.08);
  transform:perspective(900px) rotateX(var(--tilt-y)) rotateY(var(--tilt-x)) translateY(var(--lift));
  transform-style:preserve-3d;
  transition:transform .22s ease-out,border-color .3s,box-shadow .38s,opacity .3s;
}
.capability-node::before {
  content:"";
  position:absolute;
  inset:0;
  z-index:5;
  pointer-events:none;
  border-radius:inherit;
  background:radial-gradient(circle at var(--pointer-x) var(--pointer-y),rgba(174,226,255,.2),transparent 34%);
  mix-blend-mode:screen;
  opacity:0;
  transition:opacity .25s;
}
.capability-node::after { content:""; position:absolute; inset:0; pointer-events:none; border-radius:inherit; background:linear-gradient(135deg,rgba(255,255,255,.08),transparent 28% 72%,rgba(74,145,255,.08)); }
.capability-node:hover,
.capability-node:focus-visible { --lift:-4px; border-color:rgba(111,205,255,.82); box-shadow:0 25px 64px rgba(0,33,96,.52),0 0 26px rgba(75,172,255,.12),inset 0 1px rgba(255,255,255,.11); outline:none; }
.capability-node:hover::before,
.capability-node:focus-visible::before { opacity:1; }
.capability-node.active { border-color:rgba(255,151,111,.9); box-shadow:0 22px 62px rgba(0,29,90,.48),0 0 26px rgba(255,116,70,.16),inset 0 1px rgba(255,255,255,.13); }
.capability-node figure { position:relative; height:calc(100% - 68px); min-height:105px; margin:0; overflow:hidden; background:#020714; }
.capability-node figure::after { content:""; position:absolute; inset:0; pointer-events:none; background:linear-gradient(180deg,rgba(2,7,19,.05),transparent 45%,rgba(3,11,30,.72) 100%); }
.capability-node img { display:block; width:100%; height:100%; object-fit:cover; transition:transform .8s cubic-bezier(.2,.75,.2,1),filter .4s; }
.capability-node:hover img { transform:scale(1.035); filter:saturate(1.08) brightness(1.06); }
.capability-node figcaption { position:absolute; z-index:2; top:9px; right:9px; left:9px; display:flex; align-items:center; justify-content:space-between; color:#a9bdd8; font-size:7px; letter-spacing:.12em; }
.capability-node figcaption b { padding:4px 6px; border:1px solid rgba(123,207,255,.36); border-radius:999px; color:#99e1ff; background:rgba(4,20,43,.6); font-size:7px; font-weight:500; }
.capability-node > div { position:relative; z-index:2; height:68px; display:grid; grid-template-columns:auto minmax(0,1fr); grid-template-rows:auto auto; column-gap:11px; align-content:center; padding:10px 14px 11px; }
.capability-node > div > span { grid-row:1/3; align-self:center; color:#73bfff; font-size:21px; line-height:1; font-weight:340; }
.capability-node h3 { overflow:hidden; margin:0; color:#edf5ff; font-size:13px; line-height:1.25; font-weight:560; white-space:nowrap; text-overflow:ellipsis; }
.capability-node small { margin-top:3px; color:#8192ad; font-size:8px; line-height:1.2; }
.capability-node.active > div::after { content:"SELECTED"; position:absolute; right:12px; bottom:10px; color:#ff9d78; font-size:7px; letter-spacing:.1em; }
.capability-upload-fx {
  position:absolute;
  inset:0;
  z-index:6;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:16px;
  color:#d9f5ff;
  background:linear-gradient(180deg,rgba(3,14,35,.12),rgba(3,18,45,.9));
  backdrop-filter:blur(5px) saturate(135%);
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transition:opacity .18s,visibility .18s;
}
.capability-upload-fx::before { content:""; position:absolute; inset:0; background:repeating-linear-gradient(180deg,transparent 0 12px,rgba(114,209,255,.07) 13px); animation:upload-scan 1.15s linear infinite; }
.capability-upload-fx > * { position:relative; z-index:1; }
.capability-upload-fx small { color:#7fcfff; font-size:8px; letter-spacing:.15em; }
.capability-upload-fx b { margin-top:7px; color:#f1f8ff; font-size:11px; font-weight:520; letter-spacing:.04em; }
.capability-upload-track { height:2px; margin-top:12px; overflow:hidden; background:rgba(118,195,255,.2); }
.capability-upload-track i { display:block; width:0; height:100%; background:linear-gradient(90deg,#67cfff,#9478ff,#ff916b); box-shadow:0 0 14px rgba(102,205,255,.9); }
.capability-upload-fx em { align-self:flex-end; margin-top:8px; color:#9ddfff; font-size:8px; font-style:normal; letter-spacing:.12em; }
.capability-node.processing .capability-upload-fx,
.capability-node.uploaded .capability-upload-fx { opacity:1; visibility:visible; }
.capability-node.processing .capability-upload-track i { animation:upload-progress 1.2s cubic-bezier(.2,.7,.2,1) forwards; }
.capability-node.uploaded .capability-upload-track i { width:100%; }
.capability-node.processing img { filter:saturate(.75) brightness(.74); }
.capability-node.uploaded .capability-upload-fx { animation:upload-complete .75s .3s forwards; }
@keyframes upload-progress { to { width:100%; } }
@keyframes upload-scan { to { transform:translateY(13px); } }
@keyframes upload-complete { to { opacity:0; visibility:hidden; } }

.scenarios { border-top:1px solid rgba(121,165,228,.12); }
.scene-toolbar { margin-top:62px; display:flex; justify-content:flex-end; align-items:center; gap:42px; }
.scene-count { display:flex; align-items:center; gap:16px; color:#70809d; }
.scene-count b { color:var(--orange); font-weight:500; }
.scene-count i { width:64px; height:1px; background:#465675; }
.scene-controls { display:flex; gap:10px; }
.scene-controls button { width:52px; height:52px; display:grid; place-items:center; border-radius:50%; border:1px solid var(--line); background:rgba(8,26,60,.44); cursor:pointer; transition:.25s; }
.scene-controls button:hover { border-color:#63b3ff; color:#75c1ff; transform:translateY(-2px); }
.scene-stage { margin-top:24px; display:grid; grid-template-columns:minmax(0,1.65fr) minmax(240px,.55fr); gap:18px; min-height:570px; }
.scene-primary, .scene-peek { position:relative; overflow:hidden; margin:0; border:1px solid var(--line-bright); border-radius:var(--radius); background:#071127; }
.scene-primary img, .scene-peek img { width:100%; height:100%; object-fit:cover; display:block; transition:opacity .25s, transform 1s cubic-bezier(.2,.8,.2,1); }
.scene-primary:hover img, .scene-peek:hover img { transform:scale(1.025); }
.scene-primary::after, .scene-peek::after { content:""; position:absolute; inset:0; background:linear-gradient(90deg, rgba(2,8,20,.82) 0%, rgba(2,8,20,.15) 52%, transparent 78%), linear-gradient(0deg, rgba(1,7,18,.62), transparent 42%); pointer-events:none; }
.scene-primary figcaption { position:absolute; z-index:2; left:36px; top:36px; width:300px; padding:24px; border:1px solid rgba(121,184,255,.28); border-radius:18px; background:rgba(3,15,38,.58); backdrop-filter:blur(16px); }
.scene-primary small, .scene-peek small { color:var(--orange-light); font-size:9px; letter-spacing:.16em; }
.scene-primary h3 { margin:11px 0 12px; font-size:28px; }
.scene-primary p { margin:0; color:#b0bed4; font-size:13px; line-height:1.75; }
.scene-primary ul { display:flex; flex-wrap:wrap; gap:8px 18px; list-style:none; margin:18px 0 0; padding:0; color:#d9e5f7; font-size:11px; }
.scene-primary li { position:relative; padding-left:10px; }
.scene-primary li::before { content:""; position:absolute; left:0; top:5px; width:3px; height:3px; border-radius:50%; background:var(--orange); }
.scene-peek { border-color:var(--line); padding:0; cursor:pointer; text-align:left; }
.scene-peek::after { background:linear-gradient(0deg, rgba(1,7,18,.88), transparent 58%); }
.scene-peek span { position:absolute; z-index:2; left:26px; bottom:28px; }
.scene-peek b { display:block; margin-top:9px; font-size:19px; font-weight:520; }
.scene-dots { display:flex; gap:10px; margin-top:24px; }
.scene-dots button { flex:1; height:2px; border:0; padding:0; background:#1e3156; cursor:pointer; position:relative; overflow:hidden; }
.scene-dots button::after { content:""; position:absolute; inset:0 100% 0 0; background:linear-gradient(90deg,var(--orange),#65b8ff); transition:.35s; }
.scene-dots button.active::after { right:0; }

.contact { max-width:calc(var(--max) - 2 * var(--gutter)); min-height:460px; margin:0 auto 80px; padding:74px; position:relative; overflow:hidden; display:flex; justify-content:space-between; align-items:end; gap:40px; border:1px solid var(--line-bright); border-radius:30px; background:linear-gradient(135deg, rgba(11,35,79,.86), rgba(4,13,34,.95)); }
.contact::before { content:""; position:absolute; inset:0; background:linear-gradient(110deg, transparent 0 46%, rgba(54,115,255,.12) 60%, transparent 74%); }
.contact-glow { position:absolute; width:560px; height:560px; right:4%; top:15%; border:1px solid rgba(92,159,255,.2); border-radius:50%; transform:rotateX(68deg); box-shadow:0 0 80px rgba(55,106,255,.2), inset 0 0 70px rgba(105,64,255,.15); }
.contact-copy { position:relative; z-index:2; }
.contact h2 { font-size:clamp(42px,5vw,68px); }
.contact p { color:#93a3bf; font-size:14px; line-height:1.8; }
.contact .button { position:relative; z-index:2; flex:0 0 auto; min-width:230px; }

footer { max-width:var(--max); margin:auto; padding:60px var(--gutter) 40px; display:grid; grid-template-columns:auto 1fr auto; gap:20px 46px; align-items:center; color:#7f8da7; border-top:1px solid rgba(111,155,218,.12); }
footer .brand { color:#c7d3e7; font-size:16px; }
footer p { font-size:11px; }
footer div { display:flex; gap:22px; font-size:11px; }
footer a:hover { color:#fff; }
footer > small { grid-column:1/-1; padding-top:25px; border-top:1px solid rgba(111,155,218,.08); font-size:9px; }

.reveal { opacity:0; transform:translateY(26px); transition:opacity .85s ease, transform .85s cubic-bezier(.2,.75,.2,1); }
.reveal.visible { opacity:1; transform:none; }

@media (max-width: 980px) {
  .site-header { height:64px; }
  .menu-toggle { display:block; z-index:2; }
  .menu-toggle.open span:first-child { transform:translateY(3.5px) rotate(45deg); }
  .menu-toggle.open span:last-child { transform:translateY(-3.5px) rotate(-45deg); }
  .main-nav { position:absolute; top:72px; left:0; right:0; padding:18px 22px; border:1px solid var(--line); border-radius:18px; flex-direction:column; align-items:stretch; gap:0; background:rgba(2,9,23,.94); backdrop-filter:blur(20px); opacity:0; transform:translateY(-10px); pointer-events:none; transition:.25s; }
  .main-nav.open { opacity:1; transform:none; pointer-events:auto; }
  .hero { min-height:820px; height:100svh; }
  .hero-media { background-position:58% center; }
  .hero-shade { background:linear-gradient(90deg,rgba(1,5,15,.98),rgba(1,7,20,.78) 60%,rgba(2,8,22,.1)),linear-gradient(0deg,#020817,transparent 28%); }
  .hero-content { width:min(650px,76vw); }
  .hero-glass { display:none; }
  .positioning, .section-heading { grid-template-columns:1fr; }
  .positioning { gap:60px; }
  .feature-visual { padding-top:50px; }
  .capability-stage { min-height:1120px; background-position:36% top; }
  .interaction-hotspot { top:30%; left:52%; }
  .visual-copy { top:28px; left:28px; width:calc(50% - 38px); }
  .visual-copy h2 { font-size:clamp(26px,3.6vw,34px); }
  .capability-focus { top:28px; right:28px; bottom:auto; left:auto; width:calc(50% - 38px); }
  .capability-node-grid { top:390px; right:28px; bottom:28px; left:28px; width:auto; }
  .scene-stage { grid-template-columns:1fr .42fr; min-height:500px; }
  .contact { margin-left:var(--gutter); margin-right:var(--gutter); padding:54px; }
}

@media (max-width: 680px) {
  :root { --gutter:20px; --radius:18px; }
  .site-header { width:calc(100% - 24px); top:10px; padding:0 16px; border-radius:16px; }
  .brand { font-size:15px; }
  .brand-mark { transform:scale(.82); transform-origin:left center; margin-right:-3px; }
  .hero { min-height:760px; padding-top:110px; align-items:start; }
  .hero-media { background-position:66% center; }
  .hero-shade { background:linear-gradient(0deg,#020817 0%,rgba(2,8,23,.8) 22%,rgba(1,5,15,.48) 56%,rgba(1,5,15,.74) 100%),linear-gradient(90deg,rgba(1,5,15,.8),transparent); }
  .hero-content { width:100%; margin:64px 0 0; }
  .section-index { margin-bottom:24px; }
  .hero h1 { font-size:clamp(28px, 9vw, 36px); line-height:1.22; letter-spacing:-.045em; }
  .hero-content > p { font-size:15px; line-height:1.8; }
  .hero-actions { flex-direction:column; align-items:stretch; width:220px; margin-top:30px; }
  .button { min-height:52px; padding:0 20px; gap:20px; }
  .scroll-hint { display:none; }
  .positioning, .scenarios { padding-top:100px; padding-bottom:100px; }
  .positioning { gap:46px; }
  .display-quote { font-size:34px; }
  .compare { grid-template-columns:1fr; }
  .compare svg { transform:rotate(90deg); margin:0 auto; }
  .section-heading { gap:28px; }
  .section-heading h2, .contact h2 { font-size:38px; }
  .section-heading > p { font-size:14px; }
  .feature-visual { padding:24px var(--gutter) 100px; overflow:hidden; }
  .capability-stage {
    min-height:0;
    padding:452px 14px 16px;
    border-radius:24px;
    background-position:39% top;
    background-size:auto 484px;
    background-color:#020817;
  }
  .capability-stage::before { background:linear-gradient(180deg,rgba(1,7,20,.24),rgba(1,7,20,.05) 32%,#020817 44%); }
  .capability-stage-shade { background:linear-gradient(180deg,transparent 0 34%,#020817 43%); }
  .interaction-hotspot { top:34%; left:54%; transform:translate(-50%,-50%) scale(.8); }
  .visual-copy {
    top:16px;
    right:16px;
    left:16px;
    width:auto;
    padding:21px 21px 23px;
    border-radius:18px;
    background:linear-gradient(145deg,rgba(3,18,44,.12),rgba(3,11,28,.025));
    backdrop-filter:blur(2px) saturate(110%);
  }
  .visual-copy h2 { font-size:clamp(23px,7vw,28px); line-height:1.18; }
  .visual-copy p { margin-top:16px; font-size:11px; }
  .visual-copy > i { margin-top:17px; }
  .capability-focus {
    position:relative;
    top:auto;
    right:auto;
    bottom:auto;
    left:auto;
    width:auto;
    padding:21px;
  }
  .capability-node-grid {
    position:relative;
    top:auto;
    right:auto;
    bottom:auto;
    left:auto;
    width:auto;
    margin-top:14px;
    grid-template-columns:1fr;
    grid-template-rows:auto;
    gap:11px;
  }
  .capability-node-head { min-height:32px; padding:0 5px; }
  .capability-node { min-height:220px; }
  .capability-node figure { height:152px; }
  .capability-node > div { height:68px; }
  .scene-toolbar { margin-top:36px; }
  .scene-stage { grid-template-columns:1fr; min-height:0; }
  .scene-primary { height:510px; }
  .scene-primary img { object-position:62% center; }
  .scene-primary figcaption { left:16px; right:16px; top:auto; bottom:16px; width:auto; padding:20px; }
  .scene-peek { height:190px; }
  .contact { min-height:500px; margin:0 12px 50px; padding:38px 24px; flex-direction:column; align-items:flex-start; justify-content:flex-end; }
  .contact .button { width:100%; }
  footer { grid-template-columns:1fr; padding-top:44px; }
  footer div { flex-wrap:wrap; }
  footer > small { grid-column:1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration:.01ms!important; animation-iteration-count:1!important; scroll-behavior:auto!important; transition-duration:.01ms!important; }
}