@charset "UTF-8";

:root {
  --bg: #11151F;
  --bg-2: #171C29;
  --panel: #1C2231;
  --line: #2B3448;
  --ink: #EDF0F7;
  --muted: #98A3BC;
  --amber: #F2B33D;
  --amber-soft: #FFD07A;
  --shell: 1160px;
  --header-height: 70px;
  --mono: "JetBrains Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 18px); }
body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
svg { display: block; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--amber); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 13px; color: var(--amber); font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: 2.2px; }
.eyebrow::before { width: 18px; height: 2px; content: ""; background: currentColor; }

/* header */
.site-header { position: sticky; top: 0; z-index: 60; border-bottom: 1px solid var(--line); background: rgba(17, 21, 31, .96); backdrop-filter: blur(12px); }
.nav-shell { display: flex; align-items: center; justify-content: space-between; width: min(calc(100% - 48px), var(--shell)); min-height: var(--header-height); margin: 0 auto; gap: 18px; }
.brand { display: inline-flex; align-items: center; flex: none; gap: 9px; font-size: 20px; font-weight: 900; letter-spacing: .4px; }
.brand img { width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 6px; object-fit: contain; background: #0D111A; }
.brand-mark { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; border-radius: 3px; background: var(--amber); color: #211703; font-size: 10px; font-style: normal; font-weight: 900; }
.primary-nav { margin-left: auto; }
.primary-nav ul { display: flex; align-items: center; gap: clamp(11px, 1.7vw, 24px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { display: block; padding: 7px 0; color: #9EAAC4; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { color: var(--amber-soft); }
.nav-actions { display: flex; align-items: center; flex: none; gap: 10px; }
.nav-download { display: inline-flex; align-items: center; justify-content: center; min-height: 41px; gap: 7px; padding: 0 15px; border-radius: 5px; background: var(--amber); color: #211703; font-size: 12.5px; font-weight: 900; white-space: nowrap; transition: background .18s ease; }
.nav-download:hover { background: var(--amber-soft); }
.nav-download svg, .button svg { width: 17px; height: 17px; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.menu-toggle { display: none; width: 41px; height: 41px; padding: 0; border: 1px solid var(--line); border-radius: 5px; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 17px; height: 2px; margin: 5px auto; background: var(--ink); transition: transform .18s ease; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); background:
  radial-gradient(600px 360px at 10% 0%, rgba(242, 179, 61, .12), transparent 70%),
  linear-gradient(180deg, #161B28, var(--bg) 70%); }
.hero::after { position: absolute; inset: 0; content: ""; background-image: linear-gradient(rgba(43, 52, 72, .4) 1px, transparent 1px), linear-gradient(90deg, rgba(43, 52, 72, .4) 1px, transparent 1px); background-size: 46px 46px; opacity: .35; pointer-events: none; }
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(0, .92fr); align-items: center; gap: clamp(26px, 4vw, 54px); padding: 60px 0 66px; }
.hero-copy { min-width: 0; }
.hero-kicker { display: inline-flex; align-items: center; gap: 9px; padding: 3px 10px; margin: 0 0 18px; border: 1px solid #3A4661; border-radius: 3px; color: #B9C4DC; font-family: var(--mono); font-size: 10.5px; letter-spacing: 1.6px; }
.hero-kicker b { color: var(--amber); }
.hero h1 { margin: 0; font-size: clamp(46px, 6.6vw, 82px); font-weight: 900; letter-spacing: clamp(-1px, -.3vw, -2px); line-height: 1; }
.hero-subtitle { margin: 16px 0 0; color: var(--amber-soft); font-size: clamp(17px, 2vw, 22px); font-weight: 800; letter-spacing: .4px; }
.hero-lead { max-width: 520px; margin: 14px 0 0; color: var(--muted); font-size: 14.5px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin-top: 26px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; gap: 12px; padding: 0 24px; border: 1px solid transparent; border-radius: 5px; font-size: 14px; font-weight: 900; transition: transform .18s ease, background .18s ease; }
.button-primary { background: var(--amber); color: #211703; box-shadow: 0 14px 28px rgba(242, 179, 61, .18); }
.button-primary:hover { background: var(--amber-soft); transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 30px; font-size: 15px; }
.text-link { color: #C3CCE0; border-bottom: 1px dashed #485674; font-size: 13px; font-weight: 700; }
.text-link span { margin-left: 4px; color: var(--amber); }
.hero-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; padding: 18px 0 0; margin: 30px 0 0; border-top: 1px solid var(--line); list-style: none; }
.hero-stats li { display: flex; flex-direction: column; gap: 1px; font-size: 11.5px; color: #8995B0; }
.hero-stats b { color: var(--ink); font-family: var(--mono); font-size: 17px; letter-spacing: -.3px; }

/* manifest */
.manifest { min-width: 0; padding: 14px; border: 1px solid var(--line); border-radius: 10px; background: linear-gradient(165deg, #1E2536, #161C28); box-shadow: 0 24px 48px rgba(0, 0, 0, .45); }
.manifest-head { display: flex; align-items: center; gap: 9px; padding-bottom: 11px; border-bottom: 1px solid var(--line); }
.manifest-head .lamp { width: 7px; height: 7px; flex: none; border-radius: 50%; background: #4ADE80; box-shadow: 0 0 0 3px rgba(74, 222, 128, .15); }
.manifest-head p { flex: 1; min-width: 0; margin: 0; color: #C3CCE0; font-size: 11.5px; font-weight: 700; letter-spacing: .4px; }
.manifest-head b { color: #7B88A4; font-family: var(--mono); font-size: 9.5px; font-weight: 400; }
.source-rows { padding: 0; margin: 8px 0 0; list-style: none; }
.source-rows li { display: grid; grid-template-columns: 30px minmax(0, 1fr) 30px; align-items: center; gap: 11px; padding: 10px 10px; border-bottom: 1px solid #232B3D; }
.source-rows li:last-child { border-bottom: 0; }
.source-rows li > span { color: #5F6C87; font-family: var(--mono); font-size: 10.5px; letter-spacing: .5px; }
.source-rows div { display: flex; flex-direction: column; min-width: 0; }
.source-rows b { font-size: 13px; font-weight: 900; }
.source-rows small { color: #7B88A4; font-family: var(--mono); font-size: 10px; }
.source-rows i { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 22px; border: 1px solid #3A4661; border-radius: 3px; color: #7B88A4; font-size: 10px; font-style: normal; }
.source-rows i.on { border-color: rgba(74, 222, 128, .5); background: rgba(74, 222, 128, .1); color: #6EE7A0; }
.source-rows li.is-slow i { border-color: rgba(242, 179, 61, .5); background: rgba(242, 179, 61, .1); color: var(--amber-soft); }
.source-rows li.is-slow small { color: #B98F4A; }
.manifest-foot { display: flex; justify-content: space-between; padding-top: 10px; border-top: 1px solid var(--line); color: #6F7C97; font-family: var(--mono); font-size: 10px; }

/* features: bay cells */
.features { padding: 74px 0 78px; border-bottom: 1px solid var(--line); background: var(--bg-2); }
.section-heading { margin-bottom: 30px; }
.section-heading h2 { margin: 0; font-size: clamp(23px, 2.6vw, 32px); font-weight: 900; letter-spacing: -.4px; line-height: 1.36; }
.section-heading > p:last-child { max-width: 640px; margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.section-heading-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(180px, 280px); align-items: end; gap: 22px; }
.section-heading-split > p:last-child { margin: 0 0 6px; }
.bay-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.bay { position: relative; min-width: 0; padding: 24px 26px 26px; border: 1px solid var(--line); background: linear-gradient(150deg, #1F2637, #181E2B); clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%); }
.bay::after { position: absolute; top: 0; right: 0; width: 18px; height: 18px; content: ""; background: linear-gradient(225deg, var(--amber) 0 50%, transparent 50%); }
.bay-tag { display: block; color: #6F7C97; font-family: var(--mono); font-size: 10.5px; letter-spacing: 1.8px; }
.bay h3 { margin: 10px 0 7px; font-size: 18px; font-weight: 900; }
.bay p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }

/* shots: screens with bar */
.shots { padding: 74px 0 82px; }
.screen-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.screen { margin: 0; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); overflow: hidden; }
.screen-bar { display: flex; align-items: center; gap: 5px; padding: 8px 12px; border-bottom: 1px solid var(--line); background: #161C28; }
.screen-bar i { width: 7px; height: 7px; border-radius: 50%; background: #3E4A62; }
.screen-bar i:first-child { background: #B4543F; }
.screen-bar i:nth-child(2) { background: #B99248; }
.screen-bar span { margin-left: 8px; color: #7B88A4; font-family: var(--mono); font-size: 10px; letter-spacing: 1px; }
.screen img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.screen figcaption { display: flex; align-items: baseline; gap: 10px; padding: 11px 14px; font-size: 13.5px; font-weight: 900; }
.screen figcaption b { color: var(--amber); font-family: var(--mono); font-size: 10.5px; letter-spacing: 1.2px; }
.screen figcaption small { color: var(--muted); font-size: 11.5px; font-weight: 400; }

/* faq */
.faq { padding: 74px 0 78px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-2); }
.faq-shell { max-width: 920px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 2px; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list h3 { margin: 0; font-size: 15.5px; font-weight: 900; line-height: 1.5; }
.faq-list h3::before { margin-right: 10px; color: var(--amber); font-family: var(--mono); font-size: 11px; content: "Q"; }
.plus { position: relative; width: 18px; height: 18px; flex: none; border: 1px solid #3A4661; border-radius: 3px; }
.plus::before, .plus::after { position: absolute; top: 50%; left: 50%; width: 8px; height: 1.5px; content: ""; background: var(--amber); transform: translate(-50%, -50%); }
.plus::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-list details[open] .plus::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq-list details p { padding: 0 34px 18px 0; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.9; }

/* reviews: three columns */
.reviews { padding: 74px 0 80px; }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; padding: 0; margin: 0; list-style: none; }
.review-card { display: flex; flex-direction: column; justify-content: space-between; min-width: 0; padding: 20px 20px 16px; border: 1px solid var(--line); border-radius: 6px; background: linear-gradient(170deg, #1F2637, #171D2A); }
.review-text { position: relative; padding-top: 16px; margin: 0 0 16px; color: #C6CFE2; font-size: 13px; line-height: 1.9; }
.review-text::before { position: absolute; top: -4px; left: 0; color: var(--amber); font-family: Georgia, serif; font-size: 26px; line-height: 1; content: "\201C"; }
.review-meta { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 4px; padding-top: 11px; border-top: 1px solid #283043; }
.review-meta b { font-size: 12.5px; font-weight: 900; }
.review-meta time { color: #6F7C97; font-family: var(--mono); font-size: 9.5px; }

/* steps */
.steps { padding: 74px 0 80px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-2); }
.step-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; padding: 0; margin: 0; list-style: none; }
.step-list li { position: relative; min-width: 0; padding: 22px 22px 24px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); }
.step-list li::before { position: absolute; top: 0; left: 22px; width: 34px; height: 2px; content: ""; background: var(--amber); }
.step-list li > span { display: block; margin-bottom: 10px; color: #6F7C97; font-family: var(--mono); font-size: 10.5px; letter-spacing: 2px; }
.step-list h3 { margin: 0 0 7px; font-size: 16px; font-weight: 900; }
.step-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

/* download */
.download { padding: 62px 0 68px; }
.download-panel { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, 340px); align-items: center; gap: 30px; padding: 34px 32px 30px; border: 1px solid #3A4661; border-radius: 8px; background: linear-gradient(140deg, #202839, #161C28); overflow: hidden; }
.download-panel::before { position: absolute; top: 0; left: 0; right: 0; height: 4px; content: ""; background: repeating-linear-gradient(135deg, var(--amber) 0 10px, #1C2231 10px 20px); }
.download-copy h2 { margin: 0; font-size: clamp(22px, 2.4vw, 30px); font-weight: 900; line-height: 1.36; }
.download-copy > p:last-child { margin: 10px 0 0; color: var(--muted); font-size: 13.5px; }
.download-act .button { width: 100%; }
.download-notes { display: flex; flex-wrap: wrap; gap: 6px 16px; padding: 0; margin: 14px 0 0; list-style: none; color: #8C99B4; font-size: 11.5px; }
.download-notes li::before { margin-right: 6px; color: var(--amber); content: "/"; }

/* footer */
.site-footer { padding: 44px 0 32px; border-top: 1px solid var(--line); background: #0C1018; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.2fr) minmax(0, 1fr); gap: 22px; align-items: start; }
.footer-brand strong { display: block; margin-bottom: 6px; font-size: 15px; font-weight: 900; }
.footer-brand p { margin: 0; color: #6F7C97; font-size: 12px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 12.5px; }
.footer-nav a { color: #A5B0C8; }
.footer-nav a:hover { color: var(--amber-soft); }
.footer-meta { font-size: 12px; color: #6F7C97; text-align: right; }
.footer-meta p { margin: 0 0 6px; }
.footer-meta a { color: #A5B0C8; }
.disclaimer { grid-column: 1 / -1; padding-top: 16px; margin: 4px 0 0; border-top: 1px solid #232B3D; color: #66738C; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; padding: 46px 0 50px; }
  .hero-stats { max-width: 460px; }
  .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .download-panel { grid-template-columns: 1fr; padding: 26px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-meta { text-align: left; }
}
@media (max-width: 860px) {
  .primary-nav { position: absolute; top: 100%; left: 0; right: 0; display: none; margin: 0; padding: 8px 24px 16px; border-bottom: 1px solid var(--line); background: #10141E; }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .primary-nav a { padding: 11px 0; border-bottom: 1px solid #232B3D; font-size: 14px; }
  .menu-toggle { display: block; }
  .section-heading-split { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .page-shell, .nav-shell { width: calc(100% - 34px); }
  .brand { font-size: 17px; }
  .hero h1 { font-size: 36px; }
  .hero-subtitle { font-size: 16px; }
  .hero-lead { font-size: 13.5px; }
  .bay-grid, .screen-grid, .review-grid, .step-list { grid-template-columns: 1fr; }
  .screen figcaption { flex-wrap: wrap; gap: 4px 8px; }
  .footer-grid { grid-template-columns: 1fr; }
  .button, .button-large { width: 100%; }
  .text-link { display: none; }
  .download-panel { padding: 22px 18px; }
}
@media (max-width: 380px) {
  .brand span { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}