:root {
  --bg: #090a0b;
  --bg-deep: #050606;
  --text: #f3f1ea;
  --muted: #9a9d9e;
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.24);
  --accent: #ffc21c;
  --notice-height: 30px;
  --shell: min(1200px, calc(100vw - 48px));
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--bg); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
button, input { font: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
::selection { color: #090a0b; background: var(--accent); }
.shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; top: 12px; left: 12px; padding: 10px 16px; color: #000; background: var(--accent); transform: translateY(-150%); transition: transform .2s; }
.skip-link:focus { transform: translateY(0); }
.site-noise { position: fixed; z-index: 50; inset: 0; opacity: .028; pointer-events: none; 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)' opacity='.9'/%3E%3C/svg%3E"); }
.build-notice { position: fixed; z-index: 120; inset: 0 0 auto; height: var(--notice-height); display: flex; align-items: center; justify-content: center; gap: 10px; padding-inline: 14px; color: #17120a; background: var(--accent); font: 750 9px/1 ui-monospace, monospace; letter-spacing: .13em; text-align: center; }
.build-dot { width: 5px; height: 5px; background: #17120a; border-radius: 50%; animation: notice-pulse 1.8s ease-in-out infinite; }
@keyframes notice-pulse { 50% { opacity: .3; transform: scale(.72); } }

.site-header { position: fixed; z-index: 100; top: var(--notice-height); left: 0; width: 100%; border-bottom: 1px solid transparent; transition: background .3s, border-color .3s, backdrop-filter .3s; }
.site-header.is-scrolled { background: rgba(9,10,11,.82); border-color: var(--line); backdrop-filter: blur(18px); }
.nav { height: 78px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand > img { width: 38px; height: 38px; object-fit: cover; border: 1px solid rgba(255,194,28,.5); border-radius: 50%; }
.brand > span { font-size: 14px; font-weight: 750; letter-spacing: .13em; }
.brand > span span { color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 13px; }
.social-links { display: flex; align-items: center; gap: 9px; }
.social-links a { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: #929697; transition: color .25s, border-color .25s, background .25s, transform .25s; }
.social-links a:hover { color: #090a0b; border-color: var(--accent); background: var(--accent); transform: translateY(-2px); }
.social-links svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.social-links a:first-child svg { fill: currentColor; stroke: none; }
.social-links a:nth-child(3) svg path:first-child { fill: currentColor; stroke: none; }
.social-links .play { fill: var(--bg); stroke: none; }
.social-links .fill-dot { fill: currentColor; stroke: none; }
.language-toggle { min-width: 50px; height: 40px; padding: 0 12px; color: #c3c5c5; border: 1px solid var(--line); border-radius: 999px; background: transparent; font-size: 11px; font-weight: 700; cursor: pointer; transition: color .25s, border-color .25s, background .25s; }
.language-toggle:hover { color: #090a0b; border-color: var(--accent); background: var(--accent); }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 28px; min-height: 54px; padding: 0 22px; border: 1px solid var(--accent); color: #0a0a0a; background: var(--accent); font-size: 13px; font-weight: 750; cursor: pointer; transition: color .25s, background .25s, transform .25s, box-shadow .25s; }
.button:hover { color: var(--accent); background: transparent; transform: translateY(-2px); box-shadow: 0 14px 40px rgba(255,194,28,.12); }
.text-link { display: inline-flex; align-items: center; gap: 18px; padding-bottom: 5px; color: #c3c5c5; border-bottom: 1px solid var(--line-strong); font-size: 13px; }

.hero { position: relative; min-height: 810px; height: 100svh; max-height: 1010px; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; padding-top: 120px; }
.hero::before { content: ""; position: absolute; left: 47%; top: 12%; bottom: 12%; width: 1px; background: linear-gradient(transparent, var(--line), transparent); }
.hero-copy { position: relative; z-index: 2; max-width: 650px; padding-right: 60px; }
.eyebrow, .kicker { color: var(--accent); font-size: 11px; font-weight: 750; letter-spacing: .18em; text-transform: uppercase; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 28px; }
.status-dot { position: relative; display: inline-block; width: 7px; height: 7px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 18px var(--accent); }
.status-dot::after { content: ""; position: absolute; inset: -5px; border: 1px solid rgba(255,194,28,.5); border-radius: 50%; animation: ping 2s infinite; }
@keyframes ping { 50%, 100% { transform: scale(1.55); opacity: 0; } }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 29px; font-size: clamp(58px, 6.1vw, 92px); line-height: .98; letter-spacing: -.055em; font-weight: 710; }
h1 em { color: var(--accent); font-style: normal; }
.hero-lead { max-width: 590px; color: #aaaead; font-size: 17px; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; gap: 34px; margin-top: 42px; }
.hero-note { display: flex; align-items: center; gap: 13px; margin-top: 72px; color: #5e6263; font: 700 9px/1 ui-monospace, monospace; letter-spacing: .14em; }
.hero-note i { width: 32px; height: 1px; background: #464a4b; }
.hero-visual { position: relative; height: min(72vh, 740px); min-height: 600px; margin-left: -5%; isolation: isolate; }
.hero-visual::before { content: ""; position: absolute; z-index: -3; width: 86%; aspect-ratio: 1; left: 9%; top: 8%; border-radius: 50%; background: var(--accent); box-shadow: 0 0 100px rgba(255,194,28,.12); }
.hero-visual::after { content: ""; position: absolute; z-index: 2; inset: auto 0 0; height: 28%; background: linear-gradient(transparent, var(--bg) 88%); }
.hero-visual img { position: absolute; z-index: 1; width: 135%; max-width: none; height: 100%; left: -19%; top: 0; object-fit: cover; object-position: 50% 50%; clip-path: inset(0 0 0 0 round 48% 48% 14px 14px); filter: contrast(1.06) saturate(.86); }
.hero-orbit { position: absolute; z-index: -2; width: 95%; aspect-ratio: 1; top: 3%; left: 4%; border: 1px solid rgba(255,255,255,.25); border-radius: 50%; animation: orbit 36s linear infinite; }
.hero-orbit::before, .hero-orbit::after { content: ""; position: absolute; inset: 9%; border: 1px solid rgba(9,10,11,.45); border-radius: 50%; }
.hero-orbit::after { inset: 20%; border-style: dashed; }
@keyframes orbit { to { transform: rotate(360deg); } }
.orbit-label { position: absolute; padding: 4px 9px; color: rgba(9,10,11,.72); background: var(--accent); font: 700 9px/1 ui-monospace, monospace; letter-spacing: .12em; }
.orbit-label-top { left: 50%; top: -9px; transform: translateX(-50%); }
.orbit-label-bottom { left: 50%; bottom: -9px; transform: translateX(-50%) rotate(180deg); }
.hero-stamp { position: absolute; z-index: 3; right: -8px; bottom: 18%; width: 112px; height: 112px; display: grid; place-content: center; border: 1px solid var(--line-strong); border-radius: 50%; background: rgba(9,10,11,.62); backdrop-filter: blur(12px); text-align: center; }
.hero-stamp::before { content: ""; position: absolute; inset: 7px; border: 1px dashed rgba(255,194,28,.48); border-radius: 50%; }
.hero-stamp span { color: var(--accent); font: 700 9px/1.8 ui-monospace, monospace; letter-spacing: .15em; }
.hero-stamp strong { font: 500 11px/1.5 ui-monospace, monospace; }
.scroll-cue { position: absolute; left: 0; bottom: 25px; display: flex; align-items: center; gap: 15px; color: #5d6163; font: 700 9px/1 ui-monospace, monospace; letter-spacing: .17em; transform: rotate(-90deg) translateY(-100%); transform-origin: left bottom; }
.scroll-cue i { display: block; width: 56px; height: 1px; background: #56595a; }

.brief-section { position: relative; min-height: 760px; display: grid; place-items: center; overflow: hidden; background: var(--accent); color: #0a0b0b; }
.brief-bg { position: absolute; inset: 0; opacity: .1; background-image: linear-gradient(rgba(0,0,0,.3) 1px, transparent 1px), linear-gradient(90deg, rgba(0,0,0,.3) 1px, transparent 1px); background-size: 70px 70px; mask-image: radial-gradient(circle, #000 20%, transparent 75%); }
.brief-section::before { content: ""; position: absolute; width: min(78vw, 900px); aspect-ratio: 1; border: 1px solid rgba(0,0,0,.24); border-radius: 50%; }
.brief-section::after { content: ""; position: absolute; width: min(58vw, 660px); aspect-ratio: 1; border: 1px dashed rgba(0,0,0,.24); border-radius: 50%; animation: orbit 45s linear infinite reverse; }
.brief-inner { position: relative; z-index: 1; max-width: 880px; text-align: center; }
.brief-inner .kicker { margin-bottom: 20px; color: #604500; }
.brief-inner h2 { margin-bottom: 24px; font-size: clamp(52px, 7vw, 92px); line-height: 1.02; letter-spacing: -.055em; }
.brief-inner > p:not(.kicker):not(.form-note) { max-width: 650px; margin: 0 auto 34px; font-size: 16px; }
.subscribe-form { max-width: 650px; display: grid; grid-template-columns: 1fr auto; margin: 0 auto; background: #fff; border: 1px solid rgba(0,0,0,.25); box-shadow: 0 18px 60px rgba(109,71,0,.16); }
.subscribe-form label { display: flex; }
.subscribe-form .website-field { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.subscribe-form input { width: 100%; min-height: 58px; padding: 0 20px; border: 0; outline: 0; background: transparent; }
.subscribe-form .button { min-height: 58px; color: #fff; border-color: #111; background: #111; }
.subscribe-form .button:hover { color: #111; background: #fff; box-shadow: none; transform: none; }
.subscribe-form .button:disabled { opacity: .72; cursor: default; }
.form-note { margin-top: 11px; color: rgba(0,0,0,.59); font-size: 11px; }
.form-note.is-error { color: #8d1f11; }
.form-note.is-success { color: #174c2a; font-weight: 650; }
.brief-meta { display: flex; justify-content: center; align-items: center; gap: 16px; margin-top: 55px; color: rgba(0,0,0,.5); font: 650 9px/1 ui-monospace, monospace; letter-spacing: .12em; }
.brief-meta i { width: 4px; height: 4px; background: rgba(0,0,0,.44); transform: rotate(45deg); }

.site-footer { padding-top: 72px; background: var(--bg-deep); }
.footer-top { display: flex; align-items: center; justify-content: space-between; padding-bottom: 62px; }
.footer-contact { display: flex; align-items: center; gap: 25px; }
.footer-email { padding-bottom: 3px; color: #c5c6c2; border-bottom: 1px solid var(--line-strong); font-size: 13px; letter-spacing: .04em; transition: color .2s, border-color .2s; }
.footer-email:hover { color: var(--accent); border-color: var(--accent); }
.site-footer .social-links a { width: 44px; height: 44px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-block: 22px; border-top: 1px solid var(--line); color: #5b5f60; font: 600 9px/1.4 ui-monospace, monospace; letter-spacing: .11em; }
.footer-bottom a { transition: color .2s; }
.footer-bottom a:hover { color: var(--accent); }
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: var(--delay, 0ms); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  :root { --shell: min(100% - 36px, 760px); }
  .hero { min-height: 1110px; height: auto; max-height: none; grid-template-columns: 1fr; padding-block: 180px 60px; }
  .hero::before { display: none; }
  .hero-copy { padding-right: 0; }
  .hero-visual { grid-row: 2; width: 100%; max-width: 700px; margin: 42px auto 0; }
  .scroll-cue { display: none; }
}

@media (max-width: 620px) {
  :root { --shell: calc(100% - 28px); }
  .nav { height: 68px; }
  .brand > img { width: 34px; height: 34px; }
  .brand > span { font-size: 12px; }
  .social-links-header { gap: 4px; }
  .social-links-header a { width: 31px; height: 31px; border-color: transparent; }
  .social-links-header svg { width: 15px; height: 15px; }
  .header-actions { gap: 2px; }
  .language-toggle { min-width: 43px; height: 32px; padding-inline: 7px; }
  .hero { min-height: 990px; padding-top: 148px; }
  h1 { font-size: clamp(49px, 15vw, 68px); }
  .hero-lead { font-size: 15px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 22px; }
  .hero-note { margin-top: 48px; }
  .hero-visual { min-height: 420px; height: 58vh; max-height: 540px; margin-top: 22px; }
  .hero-stamp { right: 0; bottom: 13%; width: 86px; height: 86px; }
  .brief-section { min-height: 700px; }
  .brief-inner h2 { font-size: 55px; }
  .subscribe-form { grid-template-columns: 1fr; gap: 8px; background: transparent; border: 0; box-shadow: none; }
  .subscribe-form input { background: #fff; border: 1px solid rgba(0,0,0,.2); }
  .brief-meta { flex-wrap: wrap; line-height: 1.6; }
  .footer-top { align-items: flex-start; flex-direction: column; gap: 34px; }
  .footer-contact { align-items: flex-start; flex-direction: column; gap: 20px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 11px; }
}

@media (max-width: 380px) {
  .social-links-header a:last-child { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}