:root {
  --ink: #060817;
  --surface: #0a1024;
  --surface-2: #101a35;
  --surface-3: #17264a;
  --paper: #f3f0e9;
  --text: #f2f7ff;
  --muted: #9caaca;
  --energy-blue: #46d9ff;
  --energy-violet: #8a5cff;
  --copper: #e7a45f;
  --copper-light: #ffc47d;
  --cyan: var(--energy-blue);
  --line: rgba(103, 173, 255, .2);
  --shadow: 0 30px 90px rgba(0, 0, 0, .48);
  --radius: 18px;
  --max: 1180px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(circle at 78% 8%, rgba(63, 92, 210, .12), transparent 30rem), var(--ink);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-color: rgba(213, 140, 82, .6); text-underline-offset: .22em; }
a:hover { color: var(--copper-light); }
button, input, textarea { font: inherit; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: .7rem 1rem; background: var(--paper); color: var(--ink); }
.skip-link:focus { top: 1rem; }
.container { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.narrow { width: min(100%, 760px); }
.section { padding: clamp(4rem, 8vw, 7rem) 0; }
.section-tight { padding: 3rem 0; }
.surface { background: linear-gradient(145deg, rgba(10, 16, 36, .98), rgba(13, 20, 44, .88)); }
.eyebrow { margin: 0 0 .7rem; color: var(--copper-light); font-size: .78rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1, h2, h3 { margin: 0 0 .8rem; font-family: "Arial Nova", "Segoe UI", ui-sans-serif, system-ui, sans-serif; font-weight: 800; line-height: 1.04; letter-spacing: -.045em; }
h1 { max-width: 900px; font-size: clamp(2.75rem, 7vw, 5.9rem); }
h2 { font-size: clamp(2rem, 4vw, 3.6rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); }
p { margin: 0 0 1rem; }
.lede { max-width: 760px; color: #c8d8da; font-size: clamp(1.08rem, 2vw, 1.35rem); }
.muted { color: var(--muted); }
.accent { color: var(--copper-light); }
.header { position: sticky; top: 0; z-index: 40; border-bottom: 1px solid rgba(70, 217, 255, .16); background: rgba(6, 8, 23, .86); backdrop-filter: blur(18px); }
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; font-size: 1rem; font-weight: 850; letter-spacing: .05em; text-decoration: none; }
.brand img { width: 34px; }
.nav-menu { display: flex; align-items: center; gap: 1.5rem; }
.nav-menu > a { color: #c6d6d9; font-size: .92rem; font-weight: 650; text-decoration: none; }
.nav-menu > a:hover, .nav-menu > a[aria-current="page"] { color: #fff; }
.nav-toggle { display: none; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); color: var(--text); padding: .6rem .75rem; }
.button { position: relative; overflow: hidden; display: inline-flex; min-height: 46px; align-items: center; justify-content: center; gap: .5rem; border: 1px solid var(--copper); border-radius: 999px; padding: .72rem 1.15rem; background: var(--copper); color: #111b20; font-size: .9rem; font-weight: 850; text-decoration: none; }
.button:hover { background: var(--copper-light); color: #111b20; }
.button::after { content: ""; position: absolute; inset: -100% auto -100% -45%; width: 34%; transform: rotate(18deg); background: linear-gradient(90deg, transparent, rgba(255,255,255,.45), transparent); transition: left .55s ease; }
.button:hover::after { left: 120%; }
.button-ghost { background: transparent; color: var(--text); }
.button-small { min-height: 40px; padding: .55rem .9rem; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.8rem; }
.hero { position: relative; min-height: 690px; display: grid; align-items: center; overflow: clip; padding: clamp(5rem, 10vw, 8rem) 0; isolation: isolate; }
.hero::before { content: ""; position: absolute; inset: -8%; z-index: -2; background: radial-gradient(circle at 78% 28%, rgba(70, 217, 255, .22), transparent 23%), radial-gradient(circle at 73% 38%, rgba(138, 92, 255, .2), transparent 35%), linear-gradient(145deg, #050713 12%, #0d1632 62%, #060817); background-size: 130% 130%; animation: atmosphere-drift 18s ease-in-out infinite alternate; }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .32; background-image: linear-gradient(rgba(70,217,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(70,217,255,.08) 1px, transparent 1px); background-size: 52px 52px; transform: perspective(620px) rotateX(62deg) translateY(42%); transform-origin: center bottom; animation: perspective-grid 18s linear infinite; }
.hero-grid { display: grid; grid-template-columns: 1.25fr .75fr; align-items: center; gap: 3rem; }
.hero-art { position: relative; padding: 2rem; }
.hero-art::before { content: ""; position: absolute; inset: 11% 3%; z-index: -1; border: 1px solid rgba(85, 196, 200, .28); border-radius: 50%; filter: drop-shadow(0 0 35px rgba(85, 196, 200, .17)); }
.hero-carousel { position: relative; min-width: 0; outline: none; isolation: isolate; }
.hero-carousel::before { content: ""; position: absolute; inset: -10%; z-index: -1; border: 1px solid rgba(70,217,255,.42); border-radius: 50%; box-shadow: 0 0 80px rgba(70,217,255,.14), inset 0 0 55px rgba(138,92,255,.1); animation: energy-orbit 16s linear infinite; }
.carousel-viewport { position: relative; aspect-ratio: 3 / 2; overflow: hidden; border: 1px solid rgba(103,173,255,.32); border-radius: 26px; background: linear-gradient(155deg, rgba(17,29,61,.8), rgba(6,8,23,.94)); box-shadow: var(--shadow), 0 0 55px rgba(70,217,255,.09); transform-style: preserve-3d; }
.carousel-viewport::after { content: ""; position: absolute; inset: -70% 0 auto; z-index: 3; height: 45%; pointer-events: none; background: linear-gradient(180deg, transparent, rgba(70,217,255,.14), transparent); animation: scan-sweep 9s ease-in-out infinite; }
.carousel-slide { position: absolute; inset: 0; margin: 0; opacity: 0; transform: scale(1.035) translateX(2%); pointer-events: none; transition: opacity .7s ease, transform .85s cubic-bezier(.2,.7,.2,1); }
.carousel-slide.is-active { opacity: 1; transform: scale(1) translateX(0); pointer-events: auto; }
.carousel-slide a, .carousel-slide img { width: 100%; height: 100%; }
.carousel-slide img { object-fit: cover; }
.carousel-slide.is-active img { animation: product-float 7s ease-in-out infinite; }
.carousel-slide figcaption { position: absolute; left: 1rem; right: 1rem; bottom: 1rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; border: 1px solid rgba(255,255,255,.14); border-radius: 13px; padding: .75rem .9rem; background: rgba(6,13,18,.78); backdrop-filter: blur(12px); }
.carousel-slide figcaption span { color: var(--copper-light); font-size: .7rem; font-weight: 850; letter-spacing: .09em; text-transform: uppercase; }
.carousel-slide figcaption strong { font-size: .86rem; text-align: right; }
.carousel-controls { display: flex; align-items: center; justify-content: center; gap: 1rem; margin-top: 1rem; }
.carousel-arrow { width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 50%; background: rgba(13,26,35,.8); color: var(--text); cursor: pointer; transition: border-color .25s ease, transform .25s ease, background .25s ease; }
.carousel-arrow:hover { border-color: var(--copper); background: var(--surface-2); transform: translateY(-2px); }
.carousel-dots { display: flex; gap: .5rem; }
.carousel-dot { width: 28px; height: 4px; border: 0; border-radius: 999px; padding: 0; background: #37505b; cursor: pointer; transition: width .25s ease, background .25s ease; }
.carousel-dot.is-active { width: 46px; background: var(--copper); }
.metric-row, .trust-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); }
.metric { padding: 1.45rem; border-left: 1px solid var(--line); }
.metric:first-child { border-left: 0; }
.metric strong { display: block; color: var(--copper-light); font-size: 1.1rem; }
.grid-2, .grid-3, .grid-4 { display: grid; gap: 1.15rem; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { position: relative; overflow: hidden; border: 1px solid rgba(103,173,255,.22); border-radius: var(--radius); background: linear-gradient(155deg, rgba(17,29,61,.78), rgba(6,8,23,.94)); padding: clamp(1.3rem, 3vw, 2rem); box-shadow: 0 1px 0 rgba(255,255,255,.06) inset, 0 24px 70px rgba(0,0,0,.25); transform-style: preserve-3d; transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease; }
.card::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 42%; height: 1px; background: linear-gradient(90deg, var(--energy-blue), transparent); opacity: .7; }
.card:hover { transform: perspective(900px) translateY(-7px) rotateX(1.2deg); border-color: rgba(70,217,255,.48); box-shadow: 0 25px 65px rgba(0,0,0,.36), 0 0 38px rgba(70,217,255,.08); }
.card img { width: 100%; height: 230px; object-fit: contain; margin-bottom: 1.2rem; transition: transform .6s cubic-bezier(.2,.7,.2,1), filter .6s ease; }
.media-card img { margin: -2rem -2rem 1.5rem; width: calc(100% + 4rem); max-width: none; height: 250px; object-fit: cover; }
.media-card:hover img { transform: scale(1.03); filter: saturate(1.08); }
.card-link { display: inline-flex; margin-top: .6rem; color: var(--copper-light); font-weight: 800; }
.tag { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: .3rem .65rem; color: var(--muted); font-size: .75rem; font-weight: 750; text-transform: uppercase; letter-spacing: .08em; }
.steps { counter-reset: step; }
.step { position: relative; padding-left: 4rem; }
.step::before { counter-increment: step; content: "0" counter(step); position: absolute; left: 0; top: -.2rem; color: var(--copper-light); font-family: Georgia, serif; font-size: 1.7rem; }
.band { border-block: 1px solid var(--line); background: linear-gradient(90deg, rgba(138,92,255,.14), rgba(70,217,255,.1), rgba(231,164,95,.08)); }
.band-inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding-block: 2.4rem; }
.page-hero { position: relative; overflow: clip; padding: clamp(5rem, 10vw, 8rem) 0 4rem; background: radial-gradient(circle at 78% 15%, rgba(70,217,255,.14), transparent 24%), radial-gradient(circle at 64% 26%, rgba(138,92,255,.1), transparent 34%); }
.breadcrumbs { margin-bottom: 1.4rem; color: var(--muted); font-size: .86rem; }
.breadcrumbs a { text-decoration: none; }
.specs { width: 100%; border-collapse: collapse; margin-top: 1.5rem; }
.specs th, .specs td { border-bottom: 1px solid var(--line); padding: 1rem; text-align: left; vertical-align: top; }
.specs th { color: var(--copper-light); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }
.check-list { padding: 0; list-style: none; }
.check-list li { position: relative; padding: .45rem 0 .45rem 1.7rem; }
.check-list li::before { content: "◇"; position: absolute; left: 0; color: var(--cyan); }
.notice { border-left: 3px solid var(--copper); background: rgba(213, 140, 82, .1); padding: 1.15rem 1.3rem; }
.faq details { border-top: 1px solid var(--line); padding: 1.2rem 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-size: 1.1rem; font-weight: 800; }
.faq details p { margin: .8rem 0 0; color: var(--muted); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { display: grid; gap: .35rem; }
.field-full { grid-column: 1 / -1; }
label { color: #dbe6e7; font-size: .86rem; font-weight: 750; }
input, textarea { width: 100%; border: 1px solid #31505c; border-radius: 10px; background: #09141b; color: #fff; padding: .8rem .9rem; }
textarea { min-height: 150px; resize: vertical; }
button:disabled { opacity: .65; cursor: wait; }
.form-status { min-height: 1.5rem; margin-top: .75rem; color: var(--copper-light); }
.article-layout { display: grid; grid-template-columns: minmax(0, 2.2fr) minmax(240px, .8fr); gap: 3rem; align-items: start; }
.article-body h2 { margin-top: 2.4rem; font-size: clamp(1.7rem, 3vw, 2.5rem); }
.article-body h3 { margin-top: 1.8rem; }
.article-body li { margin-bottom: .5rem; }
.toc { position: sticky; top: 105px; }
.toc a { display: block; padding: .4rem 0; color: var(--muted); text-decoration: none; }
.footer { border-top: 1px solid var(--line); padding: 4rem 0 2rem; background: #060d12; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 2rem; }
.footer h2, .footer h3 { font-family: inherit; font-size: .85rem; letter-spacing: .09em; text-transform: uppercase; }
.footer a { display: block; margin: .48rem 0; color: var(--muted); text-decoration: none; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3rem; border-top: 1px solid var(--line); padding-top: 1.5rem; color: #758d94; font-size: .82rem; }
.hp-field { position: absolute !important; left: -9999px !important; }
.page-visual { position: relative; overflow: hidden; border: 1px solid rgba(103,173,255,.28); border-radius: var(--radius); background: linear-gradient(155deg, rgba(17,29,61,.8), rgba(6,8,23,.94)); box-shadow: var(--shadow), 0 0 45px rgba(70,217,255,.06); transform-style: preserve-3d; }
.page-visual img, .article-cover img { width: 100%; height: 100%; object-fit: cover; }
.page-visual img { aspect-ratio: 3 / 2; }
.article-cover { position: relative; overflow: hidden; margin-top: 2rem; border: 1px solid rgba(103,173,255,.28); border-radius: var(--radius); background: linear-gradient(155deg, rgba(17,29,61,.8), rgba(6,8,23,.94)); box-shadow: var(--shadow), 0 0 45px rgba(70,217,255,.06); transform-style: preserve-3d; }
.page-visual::after, .article-cover::after { content: ""; position: absolute; inset: -70% 0 auto; height: 45%; pointer-events: none; background: linear-gradient(180deg, transparent, rgba(70,217,255,.14), transparent); animation: scan-sweep 9s ease-in-out infinite; }
.article-cover img { aspect-ratio: 3 / 2; }
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.js .reveal.is-revealed { opacity: 1; transform: translateY(0); }
@keyframes atmosphere-drift { from { transform: translate3d(-2%, -1%, 0); } to { transform: translate3d(2%, 1%, 0); } }
@keyframes perspective-grid { to { background-position: 0 52px, 52px 0; } }
@keyframes energy-orbit { to { transform: rotate(360deg); } }
@keyframes scan-sweep { 0%, 15% { transform: translateY(-120%); } 55%, 100% { transform: translateY(520%); } }
@keyframes product-float { 0%, 100% { transform: scale(1.01) translateY(0); } 50% { transform: scale(1.025) translateY(-6px); } }

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .nav-menu { display: none; position: absolute; left: 1rem; right: 1rem; top: 68px; flex-direction: column; align-items: stretch; border: 1px solid var(--line); border-radius: 14px; background: #0d1a23; padding: 1rem; box-shadow: var(--shadow); }
  .nav-menu[data-open] { display: flex; }
  .hero-grid, .article-layout { grid-template-columns: 1fr; }
  .hero-art { max-width: 480px; margin-inline: auto; }
  .grid-4, .metric-row, .trust-strip { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .toc { position: static; }
}

@media (max-width: 620px) {
  .grid-2, .grid-3, .grid-4, .form-grid, .metric-row, .trust-strip { grid-template-columns: 1fr; }
  .metric { border-left: 0; border-top: 1px solid var(--line); }
  .metric:first-child { border-top: 0; }
  .band-inner, .footer-bottom { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .field-full { grid-column: auto; }
  .specs { display: block; overflow-x: auto; }
  .media-card img { margin: -1.3rem -1.3rem 1.2rem; width: calc(100% + 2.6rem); }
  .carousel-slide figcaption { align-items: flex-start; flex-direction: column; gap: .25rem; }
  .carousel-slide figcaption strong { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
  .js .reveal { opacity: 1 !important; transform: none !important; }
  .card:hover, .media-card:hover img, .carousel-slide, .carousel-slide img, .hero::after, .hero-carousel::before { transform: none !important; }
}

@media print {
  .header, .footer, .actions, .nav-toggle { display: none; }
  body { background: #fff; color: #111; }
  .card { border-color: #bbb; background: #fff; box-shadow: none; }
}