:root {
  --bg: #05060a;
  --bg-soft: #080b12;
  --panel: rgba(10, 15, 23, 0.72);
  --panel-solid: #0b111a;
  --line: rgba(122, 231, 255, 0.13);
  --line-strong: rgba(122, 231, 255, 0.28);
  --ink: #e6f7ff;
  --ink-2: #a8c6d3;
  --ink-3: #6f8b99;
  --cyan: #5ff6ff;
  --cyan-soft: rgba(95, 246, 255, 0.12);
  --magenta: #ff4fd8;
  --magenta-soft: rgba(255, 79, 216, 0.12);
  --lime: #d7ff5f;
  --amber: #f5c76a;
  --danger: #ff6b7a;
  --sans: "Bahnschrift", "DIN Alternate", "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  --mono: "JetBrains Mono", "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  --max: 1240px;
  --radius: 14px;
  --ease: cubic-bezier(.22,.8,.24,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0; color: var(--ink); background: var(--bg);
  font-family: var(--sans); font-size: 15px; line-height: 1.6;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
::selection { background: var(--cyan); color: #001014; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
img { max-width: 100%; display: block; }
code { font-family: var(--mono); font-size: .92em; color: var(--cyan); }

.skip-link {
  position: fixed; left: 16px; top: -60px; z-index: 999;
  background: var(--cyan); color: #001014; padding: 9px 14px; border-radius: 8px;
  font-weight: 700; transition: top .2s;
}
.skip-link:focus { top: 16px; }

.noise {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.scanlines {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .16;
  background: repeating-linear-gradient(180deg, transparent 0 3px, rgba(0,0,0,.22) 4px 5px);
  mix-blend-mode: multiply;
}
.aurora { position: fixed; z-index: 0; pointer-events: none; filter: blur(100px); opacity: .22; border-radius: 50%; }
.aurora-a { width: 780px; height: 780px; top: -360px; right: -220px; background: radial-gradient(circle, rgba(95,246,255,.65), transparent 65%); }
.aurora-b { width: 660px; height: 660px; bottom: -280px; left: -220px; background: radial-gradient(circle, rgba(255,79,216,.42), transparent 65%); }
#bg-canvas { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; opacity: .5; }

.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 26px;
  padding: 14px max(24px, env(safe-area-inset-left)) 14px max(24px, env(safe-area-inset-right));
  background: linear-gradient(180deg, rgba(5,6,10,.92), rgba(5,6,10,.62));
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px) saturate(130%);
  transition: border-color .25s, background .25s;
}
.topbar.scrolled { border-color: var(--line); background: rgba(5,6,10,.9); }
.brand { display: flex; align-items: center; gap: 11px; flex: none; }
.brand-mark { width: 42px; height: 42px; border-radius: 50%; overflow: hidden; border: 1px solid rgba(95,246,255,.35); box-shadow: 0 0 24px rgba(95,246,255,.18); }
.brand-mark img { width: 100%; height: 100%; object-fit: cover; }
.brand-text { display: grid; grid-template-columns: auto auto; align-items: baseline; gap: 0 4px; line-height: 1.05; }
.brand-text strong { font-size: 16px; letter-spacing: .06em; }
.brand-text > span { font-size: 13px; color: var(--cyan); letter-spacing: .18em; }
.brand-text small { grid-column: 1 / -1; font-family: var(--mono); font-size: 7px; letter-spacing: .24em; color: var(--ink-3); margin-top: 4px; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { font-size: 12px; letter-spacing: .08em; color: var(--ink-3); position: relative; padding: 8px 0; }
.nav a::after { content: ""; position: absolute; left: 0; bottom: 2px; width: 0; height: 1px; background: var(--cyan); transition: width .25s var(--ease); box-shadow: 0 0 8px var(--cyan); }
.nav a:hover { color: var(--ink); }
.nav a:hover::after { width: 100%; }
.top-actions { display: flex; align-items: center; gap: 12px; flex: none; }
.live-pill { display: flex; align-items: center; gap: 7px; font-family: var(--mono); font-size: 8px; letter-spacing: .12em; color: var(--ink-3); border: 1px solid var(--line); border-radius: 30px; padding: 6px 9px; }
.dot { width: 5px; height: 5px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 8px var(--lime); animation: pulse 2.4s infinite; }
@keyframes pulse { 0%,100% { opacity: .45; transform: scale(.9); } 50% { opacity: 1; transform: scale(1.15); } }
.menu-btn { display: none; width: 38px; height: 34px; border: 1px solid var(--line); background: transparent; border-radius: 8px; padding: 8px; cursor: pointer; }
.menu-btn span { display: block; height: 1px; background: var(--ink-2); margin: 4px 0; transition: transform .25s, opacity .25s; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 18px; border-radius: 8px; border: 1px solid transparent;
  font-size: 12px; font-weight: 700; letter-spacing: .06em; cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s, background .2s, border-color .2s;
  position: relative; overflow: hidden;
}
.btn svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.btn-primary { background: var(--cyan); color: #001014; box-shadow: 0 0 0 1px rgba(95,246,255,.55), 0 8px 28px rgba(95,246,255,.18); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 0 1px rgba(95,246,255,.9), 0 12px 38px rgba(95,246,255,.3); }
.btn-primary::after { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 20%, rgba(255,255,255,.65), transparent 80%); transform: translateX(-110%); transition: transform .6s var(--ease); }
.btn-primary:hover::after { transform: translateX(110%); }
.btn-ghost { border-color: var(--line-strong); background: rgba(95,246,255,.045); color: var(--ink); }
.btn-ghost:hover { border-color: var(--cyan); background: var(--cyan-soft); transform: translateY(-2px); }
.btn-quiet { border-color: transparent; background: transparent; color: var(--ink-3); min-height: 40px; padding: 0 10px; }
.btn-quiet:hover { color: var(--cyan); }
.btn-sm { min-height: 36px; padding: 0 14px; font-size: 10px; }
.btn-icon { width: 42px; padding: 0; flex: none; border-color: var(--line); }
.btn-icon svg { width: 16px; height: 16px; }

main { position: relative; z-index: 1; }
.hero { max-width: var(--max); margin: 0 auto; padding: clamp(54px, 8vw, 112px) 24px 0; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(28px, 5vw, 70px); align-items: center; min-height: 640px; }
.eyebrow { display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 9px; letter-spacing: .14em; color: var(--ink-3); margin-bottom: 24px; }
.eyebrow-line { width: 34px; height: 1px; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }
h1 { margin: 0 0 24px; font-size: clamp(46px, 6.2vw, 88px); line-height: .98; letter-spacing: -.035em; font-weight: 800; text-wrap: balance; }
h1 span { color: transparent; -webkit-text-stroke: 1px rgba(95,246,255,.78); text-shadow: 0 0 28px rgba(95,246,255,.22); }
.glitch { position: relative; }
.glitch::before, .glitch::after { content: attr(data-text); position: absolute; inset: 0; pointer-events: none; opacity: 0; clip-path: inset(0 0 55% 0); }
.glitch:hover::before { opacity: .7; color: var(--magenta); transform: translate(3px,-2px); animation: glitch-a 1.4s infinite steps(2); }
.glitch:hover::after { opacity: .7; color: var(--cyan); transform: translate(-3px,2px); clip-path: inset(45% 0 0 0); animation: glitch-b 1.1s infinite steps(2); }
@keyframes glitch-a { 0%,100% { clip-path: inset(0 0 55% 0); } 40% { clip-path: inset(12% 0 72% 0); } 70% { clip-path: inset(2% 0 88% 0); } }
@keyframes glitch-b { 0%,100% { clip-path: inset(45% 0 0 0); } 45% { clip-path: inset(72% 0 0 0); } 80% { clip-path: inset(58% 0 12% 0); } }
.hero-lead { max-width: 580px; color: var(--ink-2); font-size: clamp(14px, 1.25vw, 16px); line-height: 1.9; margin: 0 0 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 20px 30px; border-top: 1px solid var(--line); padding-top: 18px; }
.hero-meta div { display: flex; flex-direction: column; gap: 1px; }
.hero-meta strong { font-family: var(--mono); font-size: 11px; color: var(--cyan); font-weight: 500; letter-spacing: .04em; }
.hero-meta span { font-size: 9px; color: var(--ink-3); letter-spacing: .08em; }

.hero-visual { position: relative; perspective: 1200px; }
.holo-frame {
  position: relative; border: 1px solid rgba(95,246,255,.25); background: linear-gradient(160deg, rgba(10,18,29,.9), rgba(6,8,13,.96));
  box-shadow: 0 40px 90px rgba(0,0,0,.55), inset 0 0 80px rgba(95,246,255,.03);
  clip-path: polygon(0 16px, 16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transform: rotateY(-4deg) rotateX(1.5deg);
  transition: transform .6s var(--ease);
}
.holo-frame:hover { transform: rotateY(0) rotateX(0); }
.holo-head, .holo-foot { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; font-family: var(--mono); font-size: 8px; letter-spacing: .12em; color: var(--ink-3); }
.holo-head { border-bottom: 1px solid var(--line); }
.holo-foot { border-top: 1px solid var(--line); }
.holo-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--lime); margin-right: 7px; box-shadow: 0 0 8px var(--lime); }
.holo-head span:first-child { margin-right: auto; display: flex; align-items: center; }
.holo-stage { position: relative; height: clamp(300px, 36vw, 430px); background: #060a10; overflow: hidden; }
#plot-canvas { width: 100%; height: 100%; display: block; }
.holo-stage::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(5,6,10,.55)); pointer-events: none; }
.holo-chip { position: absolute; z-index: 2; background: rgba(6,12,18,.85); border: 1px solid var(--line); backdrop-filter: blur(8px); padding: 7px 9px; display: flex; flex-direction: column; gap: 1px; min-width: 130px; }
.holo-chip span { font-family: var(--mono); font-size: 7px; color: var(--cyan); letter-spacing: .14em; }
.holo-chip strong { font-family: var(--mono); font-size: 9px; color: var(--ink-2); font-weight: 500; }
.chip-a { left: 16px; top: 22px; }
.chip-b { right: 16px; bottom: 20px; min-width: 100px; }
.holo-corners i { position: absolute; width: 10px; height: 10px; border: 1px solid var(--cyan); z-index: 3; }
.holo-corners i:nth-child(1) { left: 7px; top: 7px; border-right: 0; border-bottom: 0; }
.holo-corners i:nth-child(2) { right: 7px; top: 7px; border-left: 0; border-bottom: 0; }
.holo-corners i:nth-child(3) { left: 7px; bottom: 7px; border-right: 0; border-top: 0; }
.holo-corners i:nth-child(4) { right: 7px; bottom: 7px; border-left: 0; border-top: 0; }
.float-card { position: absolute; z-index: 4; background: rgba(7,12,18,.88); border: 1px solid var(--line-strong); padding: 9px 11px; display: grid; gap: 1px; box-shadow: 0 20px 40px rgba(0,0,0,.35); animation: float 6s ease-in-out infinite; }
.float-card span { font-family: var(--mono); font-size: 7px; color: var(--magenta); letter-spacing: .16em; }
.float-card strong { font-family: var(--mono); font-size: 13px; color: var(--ink); font-weight: 500; }
.float-card small { font-size: 8px; color: var(--ink-3); }
.float-a { left: -22px; bottom: 18%; }
.float-b { right: -18px; top: 24%; animation-delay: -3s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.ticker { margin-top: clamp(48px, 7vw, 90px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); overflow: hidden; padding: 12px 0; background: rgba(95,246,255,.018); }
.ticker-track { display: flex; align-items: center; gap: 22px; width: max-content; animation: ticker 32s linear infinite; font-family: var(--mono); font-size: 9px; letter-spacing: .14em; color: var(--ink-3); }
.ticker-track i { width: 4px; height: 4px; background: var(--cyan); transform: rotate(45deg); opacity: .55; }
.ticker-track span:nth-child(4n) { color: var(--cyan); }
@keyframes ticker { to { transform: translateX(-50%); } }

.section { max-width: var(--max); margin: 0 auto; padding: clamp(80px, 10vw, 140px) 24px; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; margin-bottom: 46px; }
.section-kicker { display: block; font-family: var(--mono); font-size: 9px; letter-spacing: .18em; color: var(--cyan); margin-bottom: 12px; }
.section-head h2 { margin: 0; font-size: clamp(30px, 4vw, 48px); line-height: 1.05; letter-spacing: -.02em; font-weight: 800; }
.section-head p { max-width: 360px; color: var(--ink-3); font-size: 13px; line-height: 1.8; margin: 0 0 4px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.card { position: relative; border: 1px solid var(--line); background: linear-gradient(160deg, rgba(12,18,27,.72), rgba(7,10,15,.72)); padding: 22px; min-height: 230px; overflow: hidden; transition: border-color .3s, transform .3s var(--ease), background .3s; }
.card::before { content: ""; position: absolute; left: -1px; top: -1px; width: 34px; height: 1px; background: var(--cyan); opacity: .45; }
.card::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 20% 0%, rgba(95,246,255,.09), transparent 55%); opacity: 0; transition: opacity .3s; pointer-events: none; }
.card:hover { transform: translateY(-4px); border-color: rgba(95,246,255,.4); }
.card:hover::after { opacity: 1; }
.card-icon { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line); margin-bottom: 24px; color: var(--cyan); }
.card-icon svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.card-no { position: absolute; right: 18px; top: 18px; font-family: var(--mono); font-size: 9px; color: var(--ink-3); opacity: .6; }
.card h3 { font-size: 17px; margin: 0 0 9px; letter-spacing: .01em; }
.card p { margin: 0 0 18px; color: var(--ink-3); font-size: 12px; line-height: 1.8; }
.tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: auto; }
.tags span { font-family: var(--mono); font-size: 8px; letter-spacing: .06em; border: 1px solid var(--line); padding: 3px 6px; color: var(--ink-3); }

.showcase { border: 1px solid var(--line); background: rgba(7,10,16,.6); padding: 14px; }
.showcase-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); padding-bottom: 12px; flex-wrap: wrap; }
.showcase-tab { background: transparent; border: 1px solid transparent; padding: 8px 12px; font-family: var(--mono); font-size: 9px; letter-spacing: .08em; color: var(--ink-3); cursor: pointer; transition: .2s; }
.showcase-tab:hover { color: var(--ink); }
.showcase-tab.active { color: var(--cyan); border-color: var(--line-strong); background: var(--cyan-soft); }
.showcase-stage { position: relative; padding: clamp(18px, 4vw, 40px); overflow: hidden; }
.showcase-glow { position: absolute; inset: 10% 15%; background: radial-gradient(ellipse, rgba(95,246,255,.12), transparent 65%); filter: blur(20px); pointer-events: none; }
.device-frame { position: relative; border: 1px solid rgba(95,246,255,.25); background: #070b11; box-shadow: 0 30px 70px rgba(0,0,0,.5); margin: 0 auto; max-width: 1000px; transition: max-width .35s var(--ease); }
.device-frame.phone { max-width: 340px; }
.device-bar { display: flex; align-items: center; gap: 5px; padding: 9px 12px; border-bottom: 1px solid var(--line); }
.device-bar span { width: 6px; height: 6px; border-radius: 50%; background: #22303d; }
.device-bar span:first-child { background: var(--magenta); }
.device-bar span:nth-child(2) { background: var(--amber); }
.device-bar span:nth-child(3) { background: var(--cyan); }
.device-bar small { margin-left: auto; font-family: var(--mono); font-size: 7px; color: var(--ink-3); letter-spacing: .12em; }
.device-frame img { width: 100%; height: auto; display: block; }
.showcase-caption { display: flex; justify-content: space-between; gap: 12px; padding: 12px 4px 0; font-family: var(--mono); font-size: 8px; letter-spacing: .06em; color: var(--ink-3); }
.cyan { color: var(--cyan); }

.math-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 46px; align-items: center; }
.math-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.math-item { display: grid; grid-template-columns: 34px 1fr; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.math-item > span { font-family: var(--mono); font-size: 9px; color: var(--cyan); padding-top: 4px; }
.math-item strong { display: block; font-size: 14px; margin-bottom: 3px; }
.math-item p { margin: 0; color: var(--ink-3); font-size: 11.5px; line-height: 1.75; }
.math-visual { position: relative; }
.math-shot { border: 1px solid var(--line); padding: 8px; background: rgba(8,12,18,.6); }
.math-shot img { width: 100%; height: auto; }
.math-note { position: absolute; left: -18px; bottom: 24px; background: rgba(6,11,17,.92); border: 1px solid var(--line-strong); padding: 10px 13px; display: grid; gap: 1px; box-shadow: 0 20px 40px rgba(0,0,0,.4); }
.math-note span { font-family: var(--mono); font-size: 7px; color: var(--magenta); letter-spacing: .12em; }
.math-note strong { font-family: var(--mono); font-size: 14px; font-weight: 500; }
.math-note small { font-family: var(--mono); font-size: 9px; color: var(--ink-3); }

.server-strip { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; border: 1px solid var(--line); background: rgba(8,13,20,.55); padding: 12px 16px; margin-bottom: 14px; }
.server { display: flex; align-items: center; gap: 9px; min-width: 180px; }
.server-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-3); box-shadow: 0 0 8px transparent; }
.server-dot.ok { background: var(--lime); box-shadow: 0 0 8px var(--lime); }
.server-dot.bad { background: var(--danger); box-shadow: 0 0 8px var(--danger); }
.server div { display: grid; }
.server strong { font-size: 11px; }
.server small { font-size: 8px; color: var(--ink-3); font-family: var(--mono); }
.server code { margin-left: auto; font-size: 7px; color: var(--ink-3); }
.server-note { margin-left: auto; font-size: 9px; color: var(--ink-3); }
.download-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.download-card { border: 1px solid var(--line); background: linear-gradient(160deg, rgba(12,18,27,.78), rgba(6,10,15,.78)); padding: 22px; display: flex; flex-direction: column; gap: 14px; transition: border-color .3s, transform .3s; }
.download-card:hover { border-color: rgba(95,246,255,.38); transform: translateY(-3px); }
.download-card.web-card { background: linear-gradient(160deg, rgba(18,10,22,.7), rgba(8,7,12,.78)); }
.os-icon { width: 42px; height: 42px; border: 1px solid var(--line); display: grid; place-items: center; color: var(--cyan); }
.os-icon.android { color: var(--lime); }
.os-icon.web { color: var(--magenta); }
.os-icon svg { width: 22px; height: 22px; fill: currentColor; stroke: none; }
.os-icon.android svg, .os-icon.web svg { fill: none; stroke: currentColor; stroke-width: 1.5; }
.download-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.download-head span { font-family: var(--mono); font-size: 7px; color: var(--ink-3); letter-spacing: .1em; }
.download-head h3 { margin: 3px 0 0; font-size: 19px; }
.version { font-family: var(--mono); font-size: 8px; color: var(--cyan); border: 1px solid var(--line); padding: 3px 6px; white-space: nowrap; }
.download-card p { margin: 0; color: var(--ink-3); font-size: 11.5px; line-height: 1.75; }
.file-line { display: flex; justify-content: space-between; gap: 10px; font-family: var(--mono); font-size: 8px; color: var(--ink-3); border-top: 1px solid var(--line); padding-top: 11px; }
.file-line span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-line strong { color: var(--ink-2); font-weight: 500; white-space: nowrap; }
.download-actions { display: flex; gap: 6px; margin-top: auto; }
.download-actions .btn-primary { flex: 1; }
.checksum { font-family: var(--mono); font-size: 7px; color: var(--ink-3); line-height: 1.5; overflow-wrap: anywhere; }
.checksum code { color: var(--ink-3); }
.download-note { margin: 16px 0 0; font-size: 10px; line-height: 1.7; color: var(--ink-3); }

.updates { padding-top: clamp(40px, 6vw, 80px); }
.update-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: center; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: clamp(50px, 7vw, 90px) 0; }
.update-copy h2 { margin: 0 0 18px; font-size: clamp(30px, 4vw, 48px); line-height: 1.05; letter-spacing: -.02em; }
.update-copy > p { max-width: 540px; color: var(--ink-3); font-size: 13px; line-height: 1.85; }
.update-points { display: flex; flex-wrap: wrap; gap: 8px 16px; margin: 22px 0 26px; }
.update-points span { display: flex; align-items: center; gap: 6px; font-size: 10px; color: var(--ink-2); }
.update-points i { width: 4px; height: 4px; background: var(--lime); transform: rotate(45deg); box-shadow: 0 0 6px var(--lime); }
.update-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.update-result { border: 1px solid var(--line); background: rgba(8,13,20,.6); padding: 12px 14px; display: grid; grid-template-columns: 1fr auto; gap: 2px 14px; }
.update-result-label { font-family: var(--mono); font-size: 7px; color: var(--ink-3); letter-spacing: .12em; }
.update-result strong { font-family: var(--mono); font-size: 15px; color: var(--cyan); }
.update-result small { grid-column: 1 / -1; font-size: 9px; color: var(--ink-3); }
.update-diagram { position: relative; border: 1px solid var(--line); background: radial-gradient(circle at 50% 50%, rgba(95,246,255,.06), transparent 65%), rgba(6,10,16,.6); padding: 26px; min-height: 340px; display: grid; grid-template-rows: 1fr auto 1fr auto 1fr; justify-items: center; align-items: center; }
.node { border: 1px solid var(--line-strong); background: rgba(9,14,21,.9); padding: 10px 20px; display: grid; justify-items: center; gap: 0; min-width: 150px; position: relative; }
.node span { font-family: var(--mono); font-size: 7px; color: var(--cyan); letter-spacing: .18em; }
.node strong { font-size: 13px; }
.node small { font-family: var(--mono); font-size: 7px; color: var(--ink-3); letter-spacing: .12em; }
.node-cos { border-color: rgba(95,246,255,.5); box-shadow: 0 0 24px rgba(95,246,255,.12); }
.node-hb { border-color: rgba(255,79,216,.4); }
.node-hb span { color: var(--magenta); }
.node-app { border-color: var(--lime); box-shadow: 0 0 24px rgba(215,255,95,.1); }
.node-app span { color: var(--lime); }
.flow { display: flex; gap: 4px; padding: 5px 0; }
.flow i { width: 3px; height: 14px; background: var(--cyan); opacity: .3; animation: flow 1.5s infinite; }
.flow i:nth-child(2) { animation-delay: .2s; }
.flow i:nth-child(3) { animation-delay: .4s; }
@keyframes flow { 0%,100% { opacity: .15; transform: scaleY(.6); } 50% { opacity: .8; transform: scaleY(1); } }
.diagram-caption { font-family: var(--mono); font-size: 7px; letter-spacing: .14em; color: var(--ink-3); margin-top: 14px; }

.faq-list { max-width: 980px; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { list-style: none; cursor: pointer; padding: 18px 30px 18px 0; font-size: 14px; position: relative; color: var(--ink); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 16px; font-family: var(--mono); font-size: 17px; font-weight: 300; color: var(--cyan); transition: transform .25s; }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list p { margin: 0; padding: 0 40px 20px 0; color: var(--ink-3); font-size: 12px; line-height: 1.85; max-width: 760px; }

.footer { position: relative; z-index: 1; border-top: 1px solid var(--line); background: rgba(4,6,9,.7); }
.footer-main { max-width: var(--max); margin: 0 auto; padding: 46px 24px 32px; display: flex; justify-content: space-between; gap: 40px; }
.footer-brand { display: flex; gap: 12px; align-items: flex-start; }
.footer-brand img { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); }
.footer-brand div { display: grid; gap: 2px; }
.footer-brand strong { font-size: 15px; }
.footer-brand span { font-size: 10px; color: var(--ink-3); }
.footer-links { display: flex; gap: 56px; }
.footer-links > div { display: grid; gap: 7px; align-content: start; }
.footer-links strong { font-family: var(--mono); font-size: 8px; color: var(--ink-3); letter-spacing: .14em; margin-bottom: 3px; }
.footer-links a { font-size: 11px; color: var(--ink-2); }
.footer-links a:hover { color: var(--cyan); }
.footer-bottom { border-top: 1px solid var(--line); max-width: var(--max); margin: 0 auto; padding: 16px 24px; display: flex; justify-content: space-between; gap: 16px; font-family: var(--mono); font-size: 8px; color: var(--ink-3); flex-wrap: wrap; }

.toast { position: fixed; left: 50%; bottom: 24px; z-index: 200; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; background: rgba(5,10,15,.96); border: 1px solid var(--line-strong); padding: 11px 16px; font-size: 11px; color: var(--ink); border-radius: 8px; box-shadow: 0 20px 50px rgba(0,0,0,.5); transition: .25s; max-width: calc(100vw - 32px); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: 1fr; min-height: 0; }
  .hero-visual { max-width: 680px; width: 100%; margin: 10px auto 0; }
  .hero-copy { max-width: 760px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .download-grid { grid-template-columns: 1fr 1fr; }
  .web-card { grid-column: 1 / -1; }
  .math-grid, .update-grid { grid-template-columns: 1fr; gap: 34px; }
  .math-visual { max-width: 620px; }
  .nav { gap: 16px; }
}
@media (max-width: 900px) {
  .nav { display: none; }
  .menu-btn { display: block; }
  .nav.open { display: flex; position: fixed; left: 12px; right: 12px; top: 72px; z-index: 60; flex-direction: column; gap: 2px; padding: 12px; background: rgba(6,10,16,.98); border: 1px solid var(--line-strong); backdrop-filter: blur(20px); }
  .nav.open a { padding: 12px; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--ink-2); }
  .nav.open a:last-child { border-bottom: 0; }
  .live-pill { display: none; }
  .section-head { display: block; }
  .section-head p { max-width: 520px; margin-top: 14px; }
  .device-frame.phone { max-width: 300px; }
}
@media (max-width: 640px) {
  .topbar { padding: 10px 14px; gap: 12px; }
  .brand-mark { width: 36px; height: 36px; }
  .brand-text strong { font-size: 14px; }
  .top-actions .btn { display: none; }
  .hero { padding: 38px 16px 0; }
  h1 { font-size: clamp(40px, 13vw, 58px); }
  .hero-lead { font-size: 13px; }
  .hero-actions .btn { flex: 1; min-width: 0; padding: 0 12px; font-size: 11px; }
  .hero-actions .btn-quiet { flex-basis: 100%; justify-content: flex-start; }
  .hero-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
  .float-a { left: -6px; bottom: 12%; }
  .float-b { right: -4px; top: 18%; }
  .holo-stage { height: 260px; }
  .section { padding: 64px 16px; }
  .cards { grid-template-columns: 1fr; }
  .card { min-height: 0; }
  .showcase { padding: 8px; }
  .showcase-stage { padding: 12px 6px; }
  .showcase-caption { font-size: 7px; flex-direction: column; gap: 3px; }
  .device-frame.phone { max-width: 240px; }
  .download-grid { grid-template-columns: 1fr; }
  .web-card { grid-column: auto; }
  .server-strip { align-items: flex-start; }
  .server { min-width: 0; width: 100%; }
  .server-note { margin-left: 0; }
  .download-card { padding: 18px; }
  .update-grid { padding: 40px 0; }
  .update-diagram { padding: 16px 8px; min-height: 300px; }
  .footer-main { display: block; padding: 32px 16px; }
  .footer-links { margin-top: 28px; gap: 26px; flex-wrap: wrap; }
  .footer-bottom { padding: 14px 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}

.nav a.active { color: var(--cyan); }
.nav a.active::after { width: 100%; }
#showcase-img { opacity: 1; }
.update-result.has-update strong { color: var(--lime); }
.update-result.has-update { border-color: rgba(215,255,95,.35); }


/* ===== 娣辫棌闈?/ 瀹嬩綋 / 鍏ㄦ伅褰╄櫣涓婚 ===== */
:root {
  --bg: #001B33;
  --bg-soft: #00233f;
  --panel: rgba(0, 32, 58, 0.76);
  --panel-solid: #012b4a;
  --line: rgba(102, 246, 255, 0.16);
  --line-strong: rgba(102, 246, 255, 0.32);
  --ink: #e9fbff;
  --ink-2: #a9d9e8;
  --ink-3: #6f9cb4;
  --cyan: #66f6ff;
  --magenta: #ff64d8;
  --violet: #b388ff;
  --lime: #d7ff5f;
  --amber: #ffd166;
  --serif: "Songti SC", "STSong", "SimSun", "Noto Serif SC", "Source Han Serif SC", serif;
  --holo: linear-gradient(100deg, #66f6ff 0%, #b388ff 26%, #ff64d8 50%, #ffd166 74%, #66f6ff 100%);
}
html, body { background: #001B33; }
body {
  background:
    radial-gradient(ellipse at 20% -10%, rgba(102, 246, 255, .12), transparent 50%),
    radial-gradient(ellipse at 92% 18%, rgba(255, 100, 216, .10), transparent 48%),
    radial-gradient(ellipse at 50% 110%, rgba(179, 136, 255, .10), transparent 55%),
    #001B33;
}
.noise { opacity: .075; animation: film-grain 1.1s steps(2) infinite; }
@keyframes film-grain {
  0% { transform: translate(0, 0); }
  20% { transform: translate(-1%, 1%); }
  40% { transform: translate(1%, -.6%); }
  60% { transform: translate(-.6%, -.4%); }
  80% { transform: translate(.5%, .8%); }
  100% { transform: translate(0, 0); }
}
.scanlines {
  opacity: .24;
  background: repeating-linear-gradient(180deg, transparent 0 2px, rgba(0, 10, 20, .35) 3px 4px);
}
.aurora { filter: blur(110px); }
.aurora-a { background: conic-gradient(from 210deg, rgba(102,246,255,.5), rgba(179,136,255,.42), rgba(255,100,216,.38), rgba(255,209,102,.25), rgba(102,246,255,.5)); opacity: .18; }
.aurora-b { background: conic-gradient(from 30deg, rgba(255,100,216,.4), rgba(102,246,255,.4), rgba(215,255,95,.25), rgba(255,100,216,.4)); opacity: .16; }
#rain-canvas {
  position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none;
  opacity: .34; mix-blend-mode: screen;
}
#bg-canvas { opacity: .72; }

.topbar { background: linear-gradient(180deg, rgba(0, 27, 51, .94), rgba(0, 27, 51, .60)); }
.topbar.scrolled { background: rgba(0, 24, 46, .92); }
.brand-text small, .eyebrow, .section-kicker { color: var(--cyan); }
.nav a { color: var(--ink-3); }

/* 瀹嬩綋鏍囬 */
h1, .section-head h2, .update-copy h2 {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: .015em;
}
h1 { font-size: clamp(48px, 6.5vw, 92px); line-height: 1.04; }
h1 span {
  color: transparent;
  -webkit-text-stroke: 0;
  background: var(--holo);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  animation: holo-flow 7s linear infinite;
  filter: drop-shadow(0 0 22px rgba(102,246,255,.22));
}
@keyframes holo-flow { to { background-position: 300% 0; } }
.section-head h2, .update-copy h2 { letter-spacing: .01em; }

/* 鍏ㄦ伅褰╄櫣杈规/楂樺厜 */
.holo-frame {
  border-color: rgba(102,246,255,.34);
  background: linear-gradient(160deg, rgba(0, 38, 69, .92), rgba(0, 20, 40, .96));
  box-shadow: 0 40px 100px rgba(0, 0, 0, .55), 0 0 55px rgba(102, 246, 255, .10), 0 0 90px rgba(255, 100, 216, .06), inset 0 0 80px rgba(102, 246, 255, .04);
}
.holo-frame::before {
  content: ""; position: absolute; inset: -1px; z-index: -1; pointer-events: none;
  background: var(--holo); background-size: 300% 100%; opacity: .38; filter: blur(.3px);
  clip-path: polygon(0 16px, 16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  animation: holo-flow 8s linear infinite;
}
.holo-stage, .device-frame { background: #001d36; }
.card, .download-card, .server-strip, .showcase, .update-result, .device-frame, .math-shot {
  background-color: rgba(0, 33, 60, .62);
}
.card { background-image: linear-gradient(160deg, rgba(0, 42, 74, .78), rgba(0, 25, 47, .80)); }
.card:hover { border-color: rgba(102,246,255,.52); box-shadow: 0 18px 40px rgba(0,0,0,.28), 0 0 30px rgba(102,246,255,.06); }
.download-card { background-image: linear-gradient(160deg, rgba(0, 41, 72, .78), rgba(0, 23, 44, .82)); }
.download-card.web-card { background-image: linear-gradient(160deg, rgba(36, 0, 52, .62), rgba(0, 25, 47, .82)); }
.btn-primary {
  background: linear-gradient(100deg, #66f6ff, #b9fbff 40%, #66f6ff 70%);
  color: #00121f;
  box-shadow: 0 0 0 1px rgba(102,246,255,.7), 0 10px 32px rgba(102,246,255,.22), 0 0 36px rgba(255,100,216,.08);
}
.btn-ghost { background: rgba(102, 246, 255, .05); }
.nav a.active, .cyan { color: var(--cyan); }
.tag, .tags span { border-color: rgba(102,246,255,.18); }
.eyebrow-line { background: var(--holo); background-size: 200% 100%; box-shadow: 0 0 10px rgba(102,246,255,.5); }
.ticker { background: linear-gradient(90deg, rgba(102,246,255,.03), rgba(255,100,216,.03), rgba(102,246,255,.03)); }
.ticker-track span:nth-child(4n) { color: var(--magenta); }
.holo-chip, .float-card { background: rgba(0, 25, 47, .88); border-color: var(--line-strong); }
.math-note { background: rgba(0, 24, 45, .94); border-color: var(--line-strong); }
.device-bar { background: rgba(0, 25, 47, .6); }
.footer { background: rgba(0, 20, 38, .82); }
.update-diagram { background: radial-gradient(circle at 50% 50%, rgba(102,246,255,.08), transparent 65%), rgba(0, 24, 44, .65); }
.node { background: rgba(0, 30, 56, .92); }
.update-result { background: rgba(0, 26, 49, .7); }

/* 棣栭〉棰濆鐨勫叏鎭壊鏁?*/
.hero::after {
  content: ""; position: absolute; pointer-events: none; width: 46vw; height: 46vw; max-width: 620px; max-height: 620px;
  right: 41%; top: 12%; border-radius: 50%; opacity: .18; filter: blur(70px);
  background: conic-gradient(from 90deg, rgba(102,246,255,.5), rgba(179,136,255,.45), rgba(255,100,216,.4), rgba(255,209,102,.3), rgba(102,246,255,.5));
  z-index: -1;
}
.hero { position: relative; }
@media (max-width: 900px) {
  .hero::after { right: -20%; top: 6%; width: 80vw; height: 80vw; opacity: .13; }
}
@media (prefers-reduced-motion: reduce) {
  .noise { animation: none; }
  h1 span, .holo-frame::before, .eyebrow-line { animation: none; }
}


/* ===== 绱у噾棣栭〉锛氬噺灏戠旱鍚戦暱搴?===== */
.hero { padding-top: clamp(36px, 5vw, 64px); }
.hero-grid { min-height: 0; gap: clamp(24px, 4vw, 48px); align-items: center; }
h1 { font-size: clamp(44px, 5.6vw, 76px); margin-bottom: 18px; }
.hero-lead { margin-bottom: 22px; line-height: 1.8; }
.hero-actions { margin-bottom: 24px; }
.hero-meta { padding-top: 14px; }
.holo-stage { height: clamp(250px, 28vw, 340px); }
.ticker { margin-top: clamp(28px, 4vw, 46px); padding: 8px 0; }
.ticker-track { font-size: 8px; }

.section { padding: clamp(44px, 6vw, 72px) 24px; }
.section-head { margin-bottom: 26px; align-items: center; }
.section-head h2 { font-size: clamp(26px, 3.2vw, 40px); }
.section-head p { font-size: 12px; line-height: 1.7; }

.cards { grid-template-columns: repeat(4, 1fr); gap: 10px; }
.card { min-height: 0; padding: 18px; }
.card-icon { margin-bottom: 16px; width: 32px; height: 32px; }
.card h3 { font-size: 15px; margin-bottom: 6px; }
.card p { font-size: 11px; line-height: 1.65; margin-bottom: 12px; }
.card-no { top: 14px; right: 14px; }
.tags span { padding: 2px 5px; }

.showcase { padding: 10px; }
.showcase-stage { padding: 16px 22px; }
.device-frame { max-width: 900px; }
.device-frame img { max-height: 360px; object-fit: cover; object-position: top center; }
.device-frame.phone img { max-height: 330px; object-fit: contain; background: #001d36; }
.showcase-caption { padding-top: 8px; }

.server-strip { padding: 9px 13px; margin-bottom: 10px; }
.download-grid { gap: 10px; }
.download-card { padding: 18px; gap: 10px; }
.download-card p { line-height: 1.65; }
.os-icon { width: 36px; height: 36px; }
.download-head h3 { font-size: 17px; }

.updates { padding-top: 20px; padding-bottom: 20px; }
.update-grid { grid-template-columns: 1fr; gap: 0; padding: clamp(34px, 4vw, 52px) 0; }
.update-copy > p { max-width: 760px; margin-bottom: 10px; }
.update-visual { display: none; }
.update-points { margin: 16px 0 18px; }
.update-result { max-width: 640px; }
.update-copy h2 { margin-bottom: 12px; }

.faq { padding-top: 40px; }
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; max-width: 1100px; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 14px 24px 14px 0; font-size: 12.5px; }
.faq-list p { padding-bottom: 14px; font-size: 11px; }
.faq-list details[open] { grid-column: 1 / -1; }

.footer-main { padding: 28px 24px 22px; }
.footer-bottom { padding: 12px 24px; }

@media (max-width: 1100px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .section-head { display: block; }
  .section-head p { margin-top: 8px; }
  .device-frame img { max-height: 280px; }
  .faq-list { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero { padding-top: 28px; }
  h1 { font-size: clamp(38px, 12vw, 52px); }
  .hero-lead { font-size: 12px; }
  .holo-stage { height: 240px; }
  .section { padding: 38px 16px; }
  .cards { grid-template-columns: 1fr; }
  .device-frame img { max-height: 240px; }
  .showcase-stage { padding: 10px 4px; }
  .download-card { padding: 16px; }
  .update-points { gap: 6px 12px; }
  .footer-main { padding: 24px 16px; }
}


@media (max-width: 640px) {
  .cards { grid-template-columns: 1fr 1fr; gap: 8px; }
  .card { padding: 14px; }
  .card h3 { font-size: 13.5px; }
  .card p { font-size: 10px; line-height: 1.6; }
  .card-icon { width: 27px; height: 27px; margin-bottom: 12px; }
  .card-icon svg { width: 15px; height: 15px; }
  .tags { display: none; }
  .ticker { display: none; }
  .update-points { display: none; }
}

/* Main title refinement */
h1 {
  font-size: clamp(52px, 6.7vw, 94px);
  line-height: 1.02;
  letter-spacing: .045em;
  margin-bottom: 22px;
}
h1 span {
  display: inline-block;
  padding-right: .08em;
  background: linear-gradient(100deg, #f4feff 0%, #9af7ff 18%, #c9b8ff 38%, #ff9be0 58%, #ffe39a 78%, #f4feff 100%);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-stroke: 0;
  filter: drop-shadow(0 0 26px rgba(102,246,255,.18)) drop-shadow(0 0 54px rgba(255,100,216,.10));
  animation: title-holo 9s ease-in-out infinite;
}
@keyframes title-holo {
  0%, 100% { background-position: 0% 0; }
  50% { background-position: 100% 0; }
}
h1 .glitch::after, h1 .glitch::before { display: none; }

/* Title composition: vertical accent + light rule, no punctuation */
.hero-copy { position: relative; }
.hero-copy::before {
  content: ""; position: absolute; left: -22px; top: 92px; width: 2px; height: 140px;
  background: linear-gradient(180deg, rgba(102,246,255,0), #66f6ff 20%, #b388ff 55%, #ff64d8 85%, rgba(255,100,216,0));
  box-shadow: 0 0 18px rgba(102,246,255,.55); opacity: .8;
}
h1 { position: relative; padding-bottom: 14px; }
h1::after {
  content: ""; display: block; width: 86px; height: 2px; margin-top: 22px;
  background: linear-gradient(90deg, #66f6ff, #b388ff 45%, #ff64d8 80%, transparent);
  box-shadow: 0 0 14px rgba(102,246,255,.55); border-radius: 2px;
}
h1 > span { text-shadow: 0 0 40px rgba(255,100,216,.18); }
@media (max-width: 900px) {
  .hero-copy::before { display: none; }
  h1::after { width: 64px; margin-top: 16px; }
}


/* CRT scanlines 鈥?visible overlay */
.scanlines {
  z-index: 3;
  opacity: .52;
  background: repeating-linear-gradient(180deg,
    rgba(0, 0, 0, 0) 0px,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 8, 16, .42) 3px,
    rgba(0, 8, 16, .42) 4px);
  mix-blend-mode: multiply;
}
.scanlines::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: -18%;
  height: 22%;
  background: linear-gradient(180deg, transparent, rgba(102,246,255,.055), transparent);
  animation: scanbeam 8s linear infinite;
  pointer-events: none;
}
@keyframes scanbeam {
  0% { top: -22%; }
  100% { top: 108%; }
}
@media (max-width: 640px) {
  .scanlines { opacity: .42; }
}
@media (prefers-reduced-motion: reduce) {
  .scanlines::after { animation: none; }
}


/* Single-line main title */
h1 {
  white-space: nowrap;
  font-size: clamp(40px, 5.9vw, 82px);
  line-height: 1.12;
  letter-spacing: .035em;
  padding-bottom: 8px;
}
h1 > span { padding-right: 0; }
@media (max-width: 640px) {
  h1 { font-size: clamp(34px, 11.2vw, 48px); letter-spacing: .02em; }
}

/* Visible CRT scanlines v2 */
.scanlines {
  z-index: 4;
  opacity: .9;
  mix-blend-mode: screen;
  background:
    repeating-linear-gradient(
      180deg,
      rgba(102, 246, 255, 0) 0px,
      rgba(102, 246, 255, 0) 2px,
      rgba(102, 246, 255, .16) 3px,
      rgba(102, 246, 255, .16) 4px
    );
}
.scanlines::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    180deg,
    rgba(0, 6, 12, 0) 0px,
    rgba(0, 6, 12, 0) 3px,
    rgba(0, 6, 12, .22) 4px,
    rgba(0, 6, 12, .22) 5px
  );
  mix-blend-mode: multiply;
}
.scanlines::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -26%;
  height: 26%;
  background: linear-gradient(
    180deg,
    transparent,
    rgba(102, 246, 255, .06) 35%,
    rgba(102, 246, 255, .18) 50%,
    rgba(102, 246, 255, .06) 65%,
    transparent
  );
  animation: scanbeam 6.5s linear infinite;
  pointer-events: none;
}
@media (max-width: 640px) {
  .scanlines { opacity: .75; }
}
@media (prefers-reduced-motion: reduce) {
  .scanlines::after { animation: none; }
}


/* ===== 瀹屾暣褰╄櫣鍏ㄦ伅娓愬彉绯荤粺 ===== */
:root {
  --holo-soft: linear-gradient(115deg,
    rgba(255,255,255,.92) 0%,
    rgba(154,247,255,.92) 16%,
    rgba(201,184,255,.92) 34%,
    rgba(255,155,224,.92) 54%,
    rgba(255,227,154,.92) 74%,
    rgba(255,255,255,.92) 100%);
}
/* 涓绘爣棰橈細鏁磋鍏ㄦ伅娓愬彉 */
h1 {
  background: var(--holo);
  background-size: 240% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: holo-title 8s ease-in-out infinite;
  filter: drop-shadow(0 0 20px rgba(102,246,255,.18)) drop-shadow(0 0 46px rgba(255,100,216,.12));
}
h1 span {
  background: linear-gradient(100deg, #ffffff, #b6fbff 18%, #d3c2ff 40%, #ffb2e8 62%, #fff0b4 82%, #ffffff);
  background-size: 240% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: holo-title 7s ease-in-out infinite reverse;
}
@keyframes holo-title {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
/* 绔犺妭鏍囬涔熷甫鍏ㄦ伅杈圭紭 */
.section-head h2, .update-copy h2 {
  background: linear-gradient(100deg, #f3feff 0%, #b8f9ff 22%, #e1d2ff 46%, #ffc0ec 68%, #fff1b8 88%, #f3feff 100%);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: holo-title 11s ease-in-out infinite;
}
/* 鍏ㄦ伅杈规锛氱湡姝ｆ樉绀哄湪鍐呭灞備笂鏂?*/
.holo-frame {
  border: 1px solid transparent;
  background:
    linear-gradient(160deg, rgba(0, 38, 69, .94), rgba(0, 20, 40, .97)) padding-box,
    var(--holo) border-box;
  background-size: auto, 260% 100%;
  animation: holo-border 9s linear infinite;
}
.holo-frame::before {
  display: none;
}
@keyframes holo-border {
  to { background-position: 0 0, 260% 0; }
}
/* 鍗＄墖椤堕儴鍏ㄦ伅缁嗙嚎 + hover 鑹叉暎 */
.card::before {
  width: 100%;
  height: 1px;
  background: var(--holo);
  background-size: 240% 100%;
  opacity: .55;
  animation: holo-title 10s linear infinite;
}
.card:hover::before { opacity: 1; box-shadow: 0 0 14px rgba(102,246,255,.35); }
/* 鎸夐挳鍏ㄦ伅杈圭紭 / 楂樺厜 */
.btn-ghost {
  border-color: transparent;
  background:
    linear-gradient(rgba(0, 31, 57, .92), rgba(0, 31, 57, .92)) padding-box,
    var(--holo) border-box;
  background-size: auto, 240% 100%;
  animation: holo-border 10s linear infinite;
  border: 1px solid transparent;
}
.btn-ghost:hover { background-size: auto, 240% 100%; box-shadow: 0 0 24px rgba(102,246,255,.14); }
.btn-primary {
  background: linear-gradient(100deg, #61f5ff, #c8fbff 24%, #d9c7ff 48%, #ff9fe5 72%, #ffecad 100%);
  background-size: 220% 100%;
  animation: holo-title 7s ease-in-out infinite;
}
/* 瀵艰埅 active / hover 鍏ㄦ伅涓嬪垝绾?*/
.nav a::after {
  background: var(--holo);
  background-size: 220% 100%;
  animation: holo-title 8s linear infinite;
}
.showcase-tab.active {
  border-color: transparent;
  background:
    linear-gradient(rgba(0, 31, 57, .92), rgba(0, 31, 57, .92)) padding-box,
    var(--holo) border-box;
  border: 1px solid transparent;
  color: #eafcff;
}
/* 涓嬭浇/鏁版嵁鍗￠《閮ㄥ叏鎭嚎 */
.download-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--holo);
  background-size: 260% 100%;
  opacity: .55;
  animation: holo-title 12s linear infinite;
  pointer-events: none;
}
.download-card { position: relative; }
/* 璁惧杈规 / 椤佃剼 / 婊氬姩鏉?*/
.device-frame {
  border: 1px solid transparent;
  background:
    linear-gradient(#001d36, #001d36) padding-box,
    var(--holo) border-box;
  background-size: auto, 260% 100%;
  animation: holo-border 11s linear infinite;
}
.footer { border-top: 1px solid transparent; border-image: var(--holo) 1; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #00182e; }
::-webkit-scrollbar-thumb { background: var(--holo); background-size: 200% 100%; border-radius: 8px; }
/* 灏忓瀷鍏ㄦ伅鏍囩 */
.eyebrow, .section-kicker, .version {
  color: transparent;
  background: var(--holo-soft);
  background-size: 240% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  animation: holo-title 9s linear infinite;
}
.eyebrow-line { background: var(--holo); background-size: 240% 100%; animation: holo-title 8s linear infinite; }
/* 闄嶇骇锛氬噺灏戝姩鎬?*/
@media (prefers-reduced-motion: reduce) {
  h1, h1 span, .section-head h2, .update-copy h2, .btn-primary, .btn-ghost,
  .holo-frame, .device-frame, .eyebrow, .section-kicker, .version,
  .eyebrow-line, .card::before, .download-card::before, .nav a::after {
    animation: none;
  }
}


/* Wider rainbow spectrum for the title */
h1 {
  background: linear-gradient(100deg,
    #ffffff 0%,
    #8ffaff 11%,
    #b7ffd9 23%,
    #f4ff9b 36%,
    #ffd27a 49%,
    #ff9bcf 63%,
    #c6a8ff 78%,
    #ffffff 100%);
  background-size: 280% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: holo-title 13s ease-in-out infinite;
}
h1 span {
  background: linear-gradient(100deg,
    #ffffff 0%,
    #8ffaff 12%,
    #b7ffd9 24%,
    #f4ff9b 38%,
    #ffd27a 52%,
    #ff9bcf 66%,
    #c6a8ff 80%,
    #ffffff 100%);
  background-size: 280% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: holo-title 11s ease-in-out infinite reverse;
}


/* Saturated holographic section headings */
.section-head h2 {
  background: linear-gradient(100deg, #7df8ff 0%, #b9a7ff 28%, #ff8edb 56%, #ffe28a 82%, #7df8ff 100%);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: holo-title 12s ease-in-out infinite;
}
/* Holographic logo ring */
.brand-mark {
  border: 1px solid transparent;
  background:
    linear-gradient(#001b33, #001b33) padding-box,
    var(--holo) border-box;
  background-size: auto, 240% 100%;
  animation: holo-border 10s linear infinite;
}
/* Holographic card icon frames */
.card-icon {
  border: 1px solid transparent;
  background:
    linear-gradient(rgba(0,31,57,.9), rgba(0,31,57,.9)) padding-box,
    var(--holo) border-box;
  background-size: auto, 240% 100%;
  animation: holo-border 12s linear infinite;
}
.hero-lead { max-width: 610px; }

.hero-lead {
  word-break: keep-all;
  line-break: strict;
  overflow-wrap: normal;
}


@media (max-width: 640px) {
  .hero-break { display: none; }
}

/* 鍘绘帀鍘嬫殫鏁撮〉鐨勮挋鐗堬紝鍙繚鐣欏彂鍏夋壂鎻忕嚎 */
.scanlines {
  mix-blend-mode: screen;
  opacity: .72;
  background: repeating-linear-gradient(180deg,
    rgba(102,246,255,0) 0px,
    rgba(102,246,255,0) 2px,
    rgba(102,246,255,.14) 3px,
    rgba(102,246,255,.14) 4px);
}
.scanlines::before { display: none; }


/* 鍘绘帀 CRT 鎵厜锛屽彧淇濈暀闈欐€佹壂鎻忕嚎 */
.scanlines::after { display: none !important; animation: none !important; }


/* 鎭㈠ CRT 鎵厜 */
.scanlines::after {
  display: block !important;
  animation: scanbeam 6.5s linear infinite !important;
  opacity: .9;
}


/* 椤堕儴涓嶅啀閾哄崐閫忔槑搴曪細鍘绘帀棣栭〉椤堕儴閭ｆ潯鈥滆挋鐗堚€濊竟鐣?*/
.topbar {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom-color: transparent;
}
.topbar.scrolled {
  background: rgba(0, 27, 51, .82);
  backdrop-filter: blur(18px) saturate(130%);
  -webkit-backdrop-filter: blur(18px) saturate(130%);
  border-bottom-color: var(--line);
}
.brand-text, .nav, .top-actions { text-shadow: 0 1px 12px rgba(0, 12, 24, .55); }


/* 鎭㈠椤堕儴瀵艰埅搴曪紝鎾ゆ帀涓婁竴娆¤鍒?*/
.topbar {
  background: linear-gradient(180deg, rgba(0, 27, 51, .94), rgba(0, 27, 51, .60));
  backdrop-filter: blur(18px) saturate(130%);
  -webkit-backdrop-filter: blur(18px) saturate(130%);
  border-bottom-color: transparent;
}
.topbar.scrolled {
  background: rgba(0, 24, 46, .92);
  border-bottom-color: var(--line);
}
/* 鍘绘帀绉诲姩鐨?CRT 鎵厜甯︼紝淇濈暀闈欐€佹壂鎻忕嚎 */
.scanlines::after { display: none !important; animation: none !important; }


/* 鎭㈠ CRT 鎵厜 */
.scanlines::after {
  display: block !important;
  animation: scanbeam 6.5s linear infinite !important;
  opacity: .85;
}


/* 去掉产生方格感的扫描线层，只保留独立的 CRT 扫光 */
.scanlines { display: none !important; }
.crt-sweep {
  position: fixed; inset: 0; z-index: 4; pointer-events: none; overflow: hidden;
}
.crt-sweep::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: -26%;
  height: 26%;
  background: linear-gradient(180deg,
    transparent,
    rgba(102,246,255,.05) 35%,
    rgba(102,246,255,.13) 50%,
    rgba(102,246,255,.05) 65%,
    transparent);
  animation: scanbeam 6.5s linear infinite;
}
@media (prefers-reduced-motion: reduce) {
  .crt-sweep::after { animation: none; }
}