:root {
  --void: #050711;
  --void-soft: #090d1d;
  --panel: rgba(13, 20, 42, .78);
  --panel-solid: #0d142a;
  --line: rgba(143, 169, 255, .18);
  --line-bright: rgba(119, 226, 255, .42);
  --text: #f4f7ff;
  --muted: #9aa7c7;
  --cyan: #65e7ff;
  --blue: #6684ff;
  --violet: #a67bff;
  --lime: #bdff7a;
  --max: 1280px;
  --radius: 22px;
  --display: "Arial Narrow", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  --body: "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 9%, rgba(60, 92, 190, .16), transparent 28rem),
    radial-gradient(circle at 88% 28%, rgba(63, 212, 236, .09), transparent 35rem),
    var(--void);
  font-family: var(--body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body::before {
  position: fixed;
  z-index: -2;
  inset: 0;
  content: "";
  pointer-events: none;
  background-image:
    linear-gradient(rgba(122, 147, 225, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122, 147, 225, .025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, #000, transparent 90%);
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { max-width: 100%; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 16px;
  color: var(--void);
  background: var(--cyan);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }
.particle-field { position: fixed; z-index: -1; inset: 0; width: 100%; height: 100%; pointer-events: none; opacity: .76; }

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  width: min(calc(100% - 32px), 1440px);
  min-height: 72px;
  margin: 14px auto 0;
  padding: 0 14px 0 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(5, 8, 19, .84);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .24);
  backdrop-filter: blur(22px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 800; letter-spacing: -.5px; white-space: nowrap; }
.brand > span:last-child > span { color: var(--cyan); }
.brand-mark { position: relative; display: inline-grid; place-items: center; width: 30px; height: 30px; border: 1px solid rgba(101, 231, 255, .45); border-radius: 50%; }
.brand-mark::before, .brand-mark::after { position: absolute; content: ""; border: 1px solid rgba(101, 231, 255, .45); border-radius: 50%; }
.brand-mark::before { width: 18px; height: 6px; }
.brand-mark::after { width: 6px; height: 18px; }
.brand-mark i { position: absolute; width: 3px; height: 3px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }
.brand-mark i:first-child { top: 3px; }
.brand-mark i:nth-child(2) { right: 3px; }
.brand-mark i:last-child { bottom: 3px; left: 5px; }
.site-nav { display: flex; justify-content: center; align-items: center; gap: clamp(10px, 1.4vw, 24px); padding: 0 22px; }
.site-nav a { position: relative; color: #bac3dc; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
.site-nav a:hover, .site-nav a.active { color: #fff; }
.site-nav a.active::after { position: absolute; right: 0; bottom: -11px; left: 0; height: 2px; content: ""; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.nav-toggle { display: none; color: #fff; border: 0; background: transparent; }
.button {
  display: inline-flex;
  min-width: 158px;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 12px 22px;
  border: 1px solid var(--cyan);
  border-radius: 6px;
  color: #06101c;
  background: var(--cyan);
  box-shadow: 0 10px 35px rgba(101, 231, 255, .16);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .02em;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.button:hover { transform: translateY(-2px); background: #99efff; border-color: #99efff; }
.button-compact { min-width: 112px; min-height: 42px; padding: 9px 18px; }
.button-outline { color: var(--text); border-color: var(--line-bright); background: rgba(5, 9, 22, .35); box-shadow: none; }
.button-outline:hover { color: var(--void); background: var(--cyan); }
.text-link { display: inline-flex; align-items: center; gap: 18px; padding: 8px 0; color: #dbe4fb; border-bottom: 1px solid var(--line-bright); font-size: 14px; font-weight: 700; }
.text-link span { color: var(--cyan); }
.section-shell { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 120px 0; }
.section-code { display: inline-flex; align-items: center; gap: 9px; color: var(--cyan); font-family: Consolas, monospace; font-size: 11px; letter-spacing: .18em; text-transform: uppercase; }
.section-code::before { width: 20px; height: 1px; content: ""; background: currentColor; }
.section-heading h2, .telemetry h2, .feature-stage h2, .news-aside h2, .partner h2, .faq h2, .contact-band h2, .install-flow h2, .compatibility h2, .download-help h2, .diagnostic h2, .knowledge h2, .support-cta h2 {
  margin: 14px 0 20px;
  font-family: var(--display);
  font-size: clamp(38px, 5vw, 72px);
  line-height: 1.08;
  letter-spacing: -.06em;
}
.section-heading p { max-width: 520px; margin: 0; color: var(--muted); }
.split-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-bottom: 50px; }
.split-heading h2 { margin-bottom: 0; }
.centered-heading { max-width: 840px; margin: 0 auto 52px; text-align: center; }
.centered-heading p { margin: 0 auto; }

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(500px, 1.05fr);
  align-items: center;
  width: min(calc(100% - 40px), 1360px);
  min-height: calc(100svh - 90px);
  margin: 0 auto;
  padding: 70px 20px 80px;
}
.hero::before {
  position: absolute;
  z-index: -1;
  top: 14%;
  right: 5%;
  width: 52%;
  aspect-ratio: 1;
  content: "";
  border: 1px solid rgba(109, 133, 255, .13);
  border-radius: 50%;
  box-shadow: inset 0 0 90px rgba(72, 103, 255, .05), 0 0 100px rgba(62, 219, 255, .04);
}
.hero-copy { position: relative; z-index: 2; max-width: 650px; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin: 0 0 24px; color: #aab8db; font-family: Consolas, monospace; font-size: 11px; letter-spacing: .12em; }
.eyebrow span { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 12px var(--lime); }
.hero h1, .subpage-hero h1, .help-hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(54px, 6.6vw, 100px);
  font-weight: 800;
  line-height: .99;
  letter-spacing: -.07em;
}
.hero h1 em, .subpage-hero h1 em, .help-hero h1 em { color: transparent; background: linear-gradient(100deg, var(--cyan), #9ab1ff 52%, var(--violet)); background-clip: text; font-style: normal; }
.hero-lead { max-width: 630px; margin: 30px 0; color: #adb8d5; font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 28px; }
.signal-strip { display: flex; gap: 32px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); }
.signal-strip span { color: #a8b3d0; font-size: 12px; }
.signal-strip b { margin-right: 7px; color: var(--cyan); font-family: Consolas, monospace; font-size: 10px; }
.hero-media { position: relative; align-self: center; min-width: 0; height: auto; padding: 0; margin: 0; }
.hero-image-frame { position: relative; height: auto; overflow: visible; padding: 0; margin: 0; }
.hero-image-frame::before { position: absolute; z-index: -1; inset: 13% 12%; content: ""; border-radius: 50%; background: rgba(68, 125, 255, .2); filter: blur(70px); }
.hero-image-frame img { display: block; width: 100%; height: auto; margin: 0; padding: 0; object-fit: contain; object-position: center; filter: drop-shadow(0 30px 50px rgba(0, 0, 0, .34)); }
.orbit-label { position: absolute; z-index: 3; min-width: 100px; padding: 12px 15px; border: 1px solid var(--line-bright); color: #eef5ff; background: rgba(7, 11, 25, .84); font: 700 17px/1.2 Consolas, monospace; backdrop-filter: blur(12px); }
.orbit-label small { color: var(--muted); font: 10px var(--body); }
.orbit-label-a { top: 22%; left: 2%; }
.orbit-label-b { right: -1%; bottom: 21%; }

.telemetry {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.telemetry > div { min-height: 200px; padding: 35px 28px; border-right: 1px solid var(--line); }
.telemetry > div:last-child { border-right: 0; }
.telemetry h2 { margin-bottom: 0; font-size: 34px; letter-spacing: -.04em; }
.metric { display: flex; flex-wrap: wrap; align-content: center; align-items: baseline; }
.metric strong { font: 700 clamp(34px, 3.8vw, 58px)/1 var(--display); letter-spacing: -.05em; }
.metric > span { margin-left: 4px; color: var(--cyan); font: 700 18px Consolas, monospace; }
.metric p { flex-basis: 100%; margin: 10px 0 0; color: var(--muted); font-size: 12px; }

.download-deck { padding-top: 150px; }
.download-matrix { display: grid; grid-template-columns: 1.25fr .75fr; gap: 14px; }
.download-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 22px;
  min-height: 260px;
  padding: 34px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(16, 25, 51, .86), rgba(8, 13, 29, .78));
}
.download-card:nth-child(3) { grid-column: 1; }
.download-card:nth-child(4) { grid-column: 2; grid-row: 2; }
.download-card::after { position: absolute; right: -80px; bottom: -100px; width: 220px; height: 220px; content: ""; border: 1px solid rgba(101, 231, 255, .12); border-radius: 50%; }
.download-card .button { grid-column: 1 / -1; justify-self: start; }
.platform-orb { display: grid; width: 58px; height: 58px; place-items: center; flex: 0 0 auto; border: 1px solid var(--line-bright); border-radius: 50%; color: var(--cyan); background: rgba(101, 231, 255, .06); font: 700 21px Consolas, monospace; }
.platform-orb.android { color: var(--lime); border-color: rgba(189, 255, 122, .4); }
.platform-orb.ios { color: #cebaff; border-color: rgba(166, 123, 255, .42); }
.version { color: var(--muted); font: 10px Consolas, monospace; letter-spacing: .08em; }
.download-card h3 { margin: 5px 0 4px; font: 700 29px var(--display); letter-spacing: -.03em; }
.download-card p { margin: 0; color: var(--muted); font-size: 13px; }
.download-button { white-space: nowrap; word-break: keep-all; writing-mode: horizontal-tb; flex-flow: row nowrap; min-width: 168px; }
.micro-note { margin: 26px 0 0; color: #7e8cab; font-size: 12px; text-align: right; }

.features { border-top: 1px solid var(--line); }
.feature-stage { display: grid; grid-template-columns: .82fr 1.18fr; align-items: center; gap: 70px; }
.feature-stage .section-heading p { max-width: 440px; }
.feature-visual { position: relative; align-self: center; height: auto; padding: 0; margin: 0; }
.feature-visual::before, .compat-visual::before { position: absolute; z-index: -1; inset: 18%; content: ""; border-radius: 50%; background: rgba(89, 114, 255, .18); filter: blur(70px); }
.feature-visual img, .compat-visual img { display: block; width: 100%; height: auto; padding: 0; margin: 0; object-fit: contain; object-position: center; }
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 55px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.feature-list article { display: flex; min-height: 190px; gap: 20px; padding: 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(9, 14, 31, .52); }
.feature-icon { color: var(--cyan); font: 300 28px Consolas, monospace; }
.feature-list h3 { margin: 2px 0 10px; font-size: 17px; }
.feature-list p { margin: 0; color: var(--muted); font-size: 13px; }

.pricing { position: relative; }
.pricing::before { position: absolute; z-index: -1; top: 20%; left: 50%; width: 70%; height: 60%; content: ""; background: rgba(70, 92, 208, .11); filter: blur(100px); transform: translateX(-50%); }
.price-track { display: grid; grid-template-columns: repeat(3, 1fr); align-items: stretch; gap: 14px; }
.price-card { position: relative; display: flex; min-height: 590px; flex-direction: column; padding: 38px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(10, 15, 34, .82); }
.price-card.featured { border-color: var(--line-bright); background: linear-gradient(160deg, rgba(31, 56, 99, .92), rgba(12, 17, 38, .94)); transform: translateY(-20px); }
.popular-tag { position: absolute; top: 0; right: 30px; padding: 7px 14px; color: var(--void); background: var(--cyan); font-size: 10px; font-weight: 800; letter-spacing: .08em; }
.price-top { display: flex; align-items: center; justify-content: space-between; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.price-top span { font-size: 20px; font-weight: 800; }
.price-top b { color: var(--cyan); font: 10px Consolas, monospace; }
.price { margin: 35px 0 6px; font: 800 72px/1 var(--display); letter-spacing: -.06em; }
.price sup { margin-right: 5px; font-size: 20px; vertical-align: top; }
.price small { color: var(--muted); font: 12px var(--body); letter-spacing: 0; }
.price-audience { min-height: 46px; margin: 0; color: var(--muted); font-size: 13px; }
.price-card ul { flex: 1; margin: 26px 0; padding: 24px 0 0; border-top: 1px solid var(--line); list-style: none; }
.price-card li { margin: 0 0 14px; color: #c8d0e5; font-size: 13px; }
.price-card li::before { margin-right: 10px; color: var(--cyan); content: "·"; }

.news { display: grid; grid-template-columns: 330px 1fr; gap: 70px; border-top: 1px solid var(--line); }
.news-aside { position: sticky; top: 110px; align-self: start; }
.news-aside h2 { font-size: 54px; }
.news-aside p { margin: 0 0 26px; color: var(--muted); font-size: 13px; }
.news-list { border-top: 1px solid var(--line); }
.news-list article { display: grid; grid-template-columns: 110px 1fr auto; gap: 28px; align-items: start; padding: 35px 0; border-bottom: 1px solid var(--line); }
.news-list time { color: #7783a3; font: 11px Consolas, monospace; }
.news-list div > span { color: var(--cyan); font-size: 10px; letter-spacing: .1em; }
.news-list h3 { margin: 6px 0 8px; font-size: 20px; }
.news-list p { margin: 0; color: var(--muted); font-size: 13px; }
.news-list article > a { display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--cyan); }

.partner { display: grid; grid-template-columns: 1fr .9fr; align-items: center; gap: 100px; }
.partner h2 { font-size: clamp(44px, 5vw, 72px); }
.partner-copy > p { max-width: 540px; margin: 0 0 32px; color: var(--muted); }
.partner-dashboard { position: relative; padding: 34px; border: 1px solid var(--line-bright); border-radius: var(--radius); background: linear-gradient(150deg, rgba(23, 43, 78, .86), rgba(7, 12, 27, .9)); box-shadow: 0 30px 80px rgba(0, 0, 0, .3); }
.partner-dashboard::before { position: absolute; z-index: -1; top: -32px; right: -32px; bottom: 45%; left: 40%; content: ""; border: 1px solid rgba(101, 231, 255, .13); border-radius: 50%; }
.dashboard-head { display: flex; justify-content: space-between; padding-bottom: 20px; border-bottom: 1px solid var(--line); color: #dce6ff; font-size: 13px; }
.dashboard-head i { color: var(--lime); font: normal 10px Consolas, monospace; }
.dashboard-head i::before { display: inline-block; width: 6px; height: 6px; margin-right: 6px; content: ""; border-radius: 50%; background: var(--lime); box-shadow: 0 0 8px var(--lime); }
.commission { padding: 35px 0; }
.commission small, .commission span { display: block; color: var(--muted); font-size: 11px; }
.commission strong { display: block; margin: 8px 0; font: 800 88px/1 var(--display); letter-spacing: -.07em; }
.commission sup { color: var(--cyan); font-size: 26px; }
.partner-stats { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.partner-stats div { padding: 22px 10px 0; border-right: 1px solid var(--line); text-align: center; }
.partner-stats div:last-child { border-right: 0; }
.partner-stats strong, .partner-stats span { display: block; }
.partner-stats strong { font: 700 18px Consolas, monospace; }
.partner-stats span { margin-top: 6px; color: var(--muted); font-size: 10px; }

.faq { display: grid; grid-template-columns: 350px 1fr; gap: 80px; border-top: 1px solid var(--line); }
.faq-heading h2 { font-size: 56px; }
.faq-heading p { margin: 0 0 26px; color: var(--muted); font-size: 13px; }
.accordion details, .question-group details { border-bottom: 1px solid var(--line); }
.accordion summary, .question-group summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 0; cursor: pointer; list-style: none; font-size: 16px; font-weight: 700; }
.accordion summary::-webkit-details-marker, .question-group summary::-webkit-details-marker { display: none; }
.accordion summary span, .question-group summary span { color: var(--cyan); font: 300 24px Consolas, monospace; transition: transform .2s ease; }
.accordion details[open] summary span, .question-group details[open] summary span { transform: rotate(45deg); }
.accordion details p, .question-group details p { max-width: 720px; margin: -5px 0 24px; color: var(--muted); font-size: 13px; }
.contact-band { display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 50px; width: min(calc(100% - 40px), var(--max)); margin: 30px auto 120px; padding: 45px; border: 1px solid var(--line-bright); background: linear-gradient(110deg, rgba(16, 37, 69, .92), rgba(11, 17, 37, .94)); }
.contact-band h2 { margin-bottom: 0; font-size: 36px; }
.contact-band p { color: var(--muted); font-size: 13px; }

.site-footer { border-top: 1px solid var(--line); background: rgba(3, 5, 13, .72); }
.footer-main { display: grid; grid-template-columns: 1.7fr repeat(4, 1fr); gap: 50px; width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 70px 0 50px; }
.footer-brand p { margin: 24px 0 0; color: #7f8aa8; font-size: 13px; }
.footer-main h3 { margin: 0 0 18px; color: #fff; font-size: 12px; letter-spacing: .1em; }
.footer-main > div:not(.footer-brand) a { display: block; width: fit-content; margin: 0 0 10px; color: #818dab; font-size: 12px; }
.footer-main > div:not(.footer-brand) a:hover { color: var(--cyan); }
.footer-bottom { display: flex; justify-content: space-between; width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 22px 0; border-top: 1px solid var(--line); color: #66718d; font-size: 10px; }

.subpage-hero {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  align-items: center;
  width: min(calc(100% - 40px), var(--max));
  min-height: 720px;
  margin: 0 auto;
  padding: 90px 0;
}
.subpage-hero-copy { max-width: 610px; }
.subpage-hero h1, .help-hero h1 { margin-top: 20px; font-size: clamp(54px, 6vw, 88px); }
.subpage-hero-copy > p { max-width: 570px; margin: 30px 0; color: var(--muted); font-size: 16px; }
.subpage-media { position: relative; align-self: center; height: auto; padding: 0; margin: 0; }
.subpage-media img { display: block; width: 100%; height: auto; padding: 0; margin: 0; object-fit: contain; object-position: center; }
.subpage-media::before { position: absolute; z-index: -1; inset: 16%; content: ""; border-radius: 50%; background: rgba(68, 116, 255, .17); filter: blur(70px); }
.version-ring { position: absolute; z-index: 2; top: 8%; right: 4%; display: grid; width: 105px; height: 105px; place-content: center; border: 1px solid var(--line-bright); border-radius: 50%; background: rgba(7, 12, 27, .84); text-align: center; backdrop-filter: blur(10px); }
.version-ring span { font: 800 34px/1 var(--display); }
.version-ring small { margin-top: 5px; color: var(--muted); font-size: 10px; }
.platform-selector { border-top: 1px solid var(--line); }
.platform-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.platform-card { position: relative; min-height: 500px; padding: 38px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(10, 16, 35, .8); }
.platform-number { position: absolute; right: 24px; bottom: -27px; color: rgba(122, 151, 230, .05); font: 900 130px/1 var(--display); letter-spacing: -.08em; }
.platform-head { position: relative; display: flex; align-items: center; gap: 18px; }
.platform-head h2 { margin: 0; font: 800 31px var(--display); letter-spacing: -.04em; }
.platform-head p { margin: 2px 0 0; color: var(--muted); font: 10px Consolas, monospace; }
.platform-card ul { position: relative; margin: 30px 0 24px; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.platform-card li { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--line); color: #d8e0f4; font-size: 12px; }
.platform-card li span { color: var(--muted); }
.platform-copy { position: relative; min-height: 62px; color: var(--muted); font-size: 13px; }
.platform-card .button { position: relative; margin-top: 14px; }
.install-flow { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; border-top: 1px solid var(--line); }
.install-intro { align-self: start; }
.install-intro p { max-width: 450px; color: var(--muted); font-size: 13px; }
.install-steps { margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.install-steps li { display: grid; grid-template-columns: 70px 1fr; gap: 24px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.install-steps li > span { color: var(--cyan); font: 11px Consolas, monospace; }
.install-steps h3 { margin: 0 0 8px; font-size: 19px; }
.install-steps p { margin: 0; color: var(--muted); font-size: 13px; }
.compatibility { display: grid; grid-template-columns: 1fr .85fr; align-items: center; gap: 90px; }
.compat-visual { position: relative; align-self: center; height: auto; padding: 0; margin: 0; }
.compat-copy > p { color: var(--muted); }
.compat-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 28px; }
.compat-points span { padding: 15px; border: 1px solid var(--line); color: #cbd4ea; font-size: 12px; }
.compat-points span::before { margin-right: 8px; color: var(--cyan); content: "◆"; font-size: 7px; }
.download-help { margin-bottom: 120px; padding: 65px; border: 1px solid var(--line-bright); background: linear-gradient(110deg, rgba(15, 39, 72, .9), rgba(10, 15, 32, .94)); text-align: center; }
.download-help h2 { margin-bottom: 14px; font-size: 50px; }
.download-help > p { max-width: 650px; margin: 0 auto 28px; color: var(--muted); }
.download-help > div { display: flex; align-items: center; justify-content: center; gap: 28px; }

.help-hero { width: min(calc(100% - 40px), 1100px); margin: 0 auto; padding: 120px 0 100px; text-align: center; }
.help-hero-top > p { margin: 25px auto 38px; color: var(--muted); font-size: 16px; }
.help-search { max-width: 850px; margin: 0 auto; text-align: left; }
.help-search > label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); }
.help-search > div { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 14px; padding: 8px 8px 8px 23px; border: 1px solid var(--line-bright); border-radius: 8px; background: rgba(12, 20, 43, .9); box-shadow: 0 30px 70px rgba(0, 0, 0, .3); }
.help-search span { color: var(--cyan); font-size: 28px; }
.help-search input { min-width: 0; padding: 13px 0; border: 0; outline: 0; color: #fff; background: transparent; }
.help-search input::placeholder { color: #727f9e; }
.help-search button { min-height: 48px; padding: 0 26px; border: 0; border-radius: 4px; color: var(--void); background: var(--cyan); font-weight: 800; cursor: pointer; }
.quick-topics { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 19px; color: #7885a3; font-size: 11px; }
.quick-topics button { padding: 2px 9px; border: 1px solid var(--line); border-radius: 20px; color: #aab6d2; background: transparent; cursor: pointer; }
.support-categories { border-top: 1px solid var(--line); }
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.category-grid > a { position: relative; display: flex; min-height: 220px; flex-direction: column; justify-content: space-between; padding: 28px; border: 1px solid var(--line); border-radius: 14px; background: rgba(10, 16, 35, .74); transition: border-color .2s ease, transform .2s ease; }
.category-grid > a:hover { border-color: var(--line-bright); transform: translateY(-3px); }
.category-grid > a > span { display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid var(--line-bright); border-radius: 50%; color: var(--cyan); }
.category-grid h3 { margin: 20px 0 5px; font-size: 18px; }
.category-grid p { margin: 0; color: var(--muted); font-size: 11px; }
.category-grid b { position: absolute; top: 28px; right: 28px; color: #6f7c9d; font: 10px Consolas, monospace; }
.diagnostic { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; border-top: 1px solid var(--line); }
.diagnostic-head { grid-row: 1 / 3; }
.diagnostic-head p { max-width: 430px; color: var(--muted); font-size: 13px; }
.diagnostic-track { margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; counter-reset: checks; }
.diagnostic-track li { display: grid; grid-template-columns: 55px 1fr; gap: 22px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.diagnostic-track li > span { color: var(--cyan); font: 11px Consolas, monospace; }
.diagnostic-track h3 { margin: 0 0 5px; font-size: 17px; }
.diagnostic-track p { margin: 0; color: var(--muted); font-size: 12px; }
.diagnostic > .button { grid-column: 2; justify-self: start; }
.knowledge { display: grid; grid-template-columns: 280px 1fr; gap: 90px; border-top: 1px solid var(--line); }
.knowledge-nav { position: sticky; top: 110px; align-self: start; }
.knowledge-nav h2 { font-size: 42px; }
.knowledge-nav > a { display: block; padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.knowledge-nav > a:hover { color: var(--cyan); }
.question-group { margin-bottom: 55px; }
.question-group > h3 { margin: 0; padding-bottom: 16px; border-bottom: 1px solid var(--line-bright); color: var(--cyan); font: 12px Consolas, monospace; letter-spacing: .1em; }
.support-cta { display: grid; grid-template-columns: 1fr .8fr; align-items: center; gap: 80px; margin-bottom: 120px; padding: 50px; border: 1px solid var(--line-bright); background: rgba(10, 17, 37, .86); }
.support-image { align-self: center; height: auto; padding: 0; margin: 0; }
.support-image img { display: block; width: 100%; height: auto; padding: 0; margin: 0; object-fit: contain; object-position: center; }
.support-cta h2 { font-size: 45px; }
.support-cta p { color: var(--muted); }
.support-cta .text-link { margin-left: 28px; }

@media (max-width: 1180px) {
  .site-nav { position: fixed; top: 92px; right: 16px; left: 16px; display: none; padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: rgba(6, 9, 21, .98); box-shadow: 0 25px 60px rgba(0, 0, 0, .4); }
  .site-nav.open { display: grid; grid-template-columns: repeat(2, 1fr); }
  .site-nav a { padding: 10px; }
  .site-nav a.active::after { bottom: 2px; right: 10px; left: 10px; }
  .nav-toggle { display: flex; align-items: center; justify-self: end; gap: 4px; }
  .nav-toggle span { display: block; width: 4px; height: 4px; border-radius: 50%; background: var(--cyan); }
  .nav-toggle b { margin-left: 6px; font-size: 12px; }
  .site-header { grid-template-columns: 1fr auto auto; gap: 16px; }
  .hero { grid-template-columns: .9fr 1.1fr; }
  .telemetry { grid-template-columns: repeat(4, 1fr); }
  .telemetry-intro { grid-column: 1 / -1; min-height: auto !important; border-right: 0 !important; border-bottom: 1px solid var(--line); }
  .telemetry h2 br { display: none; }
  .feature-stage, .partner, .compatibility { gap: 50px; }
  .news, .faq, .install-flow, .diagnostic, .knowledge { gap: 50px; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .section-shell { padding: 90px 0; }
  .hero, .subpage-hero { grid-template-columns: 1fr; padding-top: 100px; }
  .hero { min-height: auto; }
  .hero-copy, .subpage-hero-copy { max-width: 750px; }
  .hero-media, .subpage-media { width: min(100%, 720px); margin: 20px auto 0; }
  .telemetry { grid-template-columns: repeat(2, 1fr); }
  .telemetry > div:nth-child(3) { border-right: 0; }
  .download-matrix { grid-template-columns: 1fr 1fr; }
  .download-card, .download-card:nth-child(3), .download-card:nth-child(4) { grid-column: auto; grid-row: auto; }
  .feature-stage, .partner, .compatibility, .support-cta { grid-template-columns: 1fr; }
  .feature-stage .feature-visual, .compat-visual { max-width: 650px; margin: 0 auto; }
  .feature-list { grid-template-columns: repeat(2, 1fr); }
  .price-track { grid-template-columns: 1fr; max-width: 620px; margin: 0 auto; }
  .price-card.featured { transform: none; }
  .price-card { min-height: auto; }
  .news, .faq, .install-flow, .diagnostic, .knowledge { grid-template-columns: 1fr; }
  .news-aside, .knowledge-nav { position: static; }
  .faq { gap: 20px; }
  .diagnostic-head { grid-row: auto; }
  .diagnostic > .button { grid-column: auto; }
  .contact-band { grid-template-columns: 1fr; gap: 15px; }
  .footer-main { grid-template-columns: 1.7fr repeat(2, 1fr); }
  .platform-grid { grid-template-columns: 1fr; }
  .support-cta { padding: 36px; }
}

@media (max-width: 620px) {
  html { scroll-padding-top: 85px; }
  .site-header { width: calc(100% - 20px); min-height: 62px; margin-top: 8px; padding-left: 13px; }
  .header-cta { display: none; }
  .site-header { grid-template-columns: 1fr auto; }
  .site-nav.open { grid-template-columns: 1fr; max-height: calc(100vh - 115px); overflow-y: auto; }
  .brand { font-size: 17px; }
  .brand-mark { width: 27px; height: 27px; }
  .section-shell { width: calc(100% - 28px); padding: 72px 0; }
  .section-heading h2, .telemetry h2, .feature-stage h2, .news-aside h2, .partner h2, .faq h2, .install-flow h2, .compatibility h2, .diagnostic h2, .knowledge h2 { font-size: 38px; }
  .split-heading { display: block; margin-bottom: 34px; }
  .split-heading > p { margin-top: 15px; }
  .hero { width: calc(100% - 28px); padding: 70px 0; }
  .hero h1, .subpage-hero h1, .help-hero h1 { font-size: 49px; }
  .hero-lead { font-size: 14px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 12px; }
  .signal-strip { flex-direction: column; gap: 8px; margin-top: 35px; }
  .orbit-label { display: none; }
  .telemetry { width: calc(100% - 28px); }
  .telemetry > div { min-height: 150px; padding: 25px 18px; }
  .telemetry-intro { padding: 28px 18px !important; }
  .metric strong { font-size: 38px; }
  .download-matrix { grid-template-columns: 1fr; }
  .download-card, .download-card:nth-child(3), .download-card:nth-child(4) { grid-template-columns: auto 1fr; grid-column: auto; grid-row: auto; min-width: 0; }
  .download-card { min-height: 0; padding: 25px; }
  .download-card .button { width: 100%; min-width: 180px; }
  .feature-list { grid-template-columns: 1fr; }
  .feature-list article { min-height: 150px; }
  .price-card { padding: 28px; }
  .news-list article { grid-template-columns: 1fr auto; gap: 15px; }
  .news-list time { grid-column: 1 / -1; }
  .partner-dashboard { padding: 25px; }
  .commission strong { font-size: 72px; }
  .partner-stats { grid-template-columns: 1fr; }
  .partner-stats div { padding: 15px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .partner-stats div:last-child { border-bottom: 0; }
  .contact-band { width: calc(100% - 28px); margin-bottom: 75px; padding: 28px; }
  .footer-main { grid-template-columns: repeat(2, 1fr); width: calc(100% - 28px); gap: 35px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; width: calc(100% - 28px); }
  .subpage-hero { width: calc(100% - 28px); min-height: auto; padding: 90px 0 60px; }
  .platform-card { min-height: 0; padding: 25px; }
  .install-steps li { grid-template-columns: 42px 1fr; }
  .compat-points { grid-template-columns: 1fr; }
  .download-help { width: calc(100% - 28px); margin-bottom: 80px; padding: 40px 24px; }
  .download-help h2 { font-size: 38px; }
  .download-help > div { align-items: flex-start; flex-direction: column; }
  .help-hero { width: calc(100% - 28px); padding: 90px 0 70px; }
  .help-search > div { grid-template-columns: auto 1fr; padding: 8px 14px; }
  .help-search button { grid-column: 1 / -1; width: 100%; }
  .category-grid { grid-template-columns: 1fr; }
  .category-grid > a { min-height: 180px; }
  .support-cta { width: calc(100% - 28px); padding: 24px; }
  .support-cta .text-link { margin: 20px 0 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .particle-field { display: none; }
}

.hero { align-items: center; }
.hero-media, .feature-visual, .subpage-media, .compat-visual, .support-image { align-self: center; height: auto; padding: 0; margin-top: 0; margin-bottom: 0; overflow: visible; transform: none; }
.hero-media img, .feature-visual img, .subpage-media img, .compat-visual img, .support-image img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 0;
  max-height: none;
  margin: 0;
  padding: 0;
  object-fit: contain;
  object-position: center;
  clip-path: none;
  transform: none;
}
.download-button {
  display: inline-flex;
  min-width: 168px;
  flex-flow: row nowrap;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  word-break: keep-all;
  writing-mode: horizontal-tb;
}
@media (max-width: 620px) {
  .download-matrix, .platform-grid { grid-template-columns: minmax(0, 1fr); }
  .download-card, .platform-card { min-width: 0; }
  .download-button { width: 100%; min-width: 180px; }
}