:root {
  color-scheme: dark;
  --navy: #071724;
  --navy-light: #102837;
  --mint: #92e9c5;
  --green: #92e9c5;
  --green-deep: #92e9c5;
  --ink: #edf5f2;
  --muted: #9fb4bc;
  --paper: #0c2030;
  --panel: #112b3a;
  --panel-soft: #163746;
  --line: #2b4552;
  --shadow: 0 24px 64px rgba(0, 0, 0, .2);
  --radius: 20px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 105px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "Segoe UI Variable", "Segoe UI", "Noto Sans", "Microsoft YaHei", "Yu Gothic", system-ui, sans-serif; font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
figure, p, h1, h2, h3 { margin: 0; }
h1, h2, h3 { font-weight: 650; }
h1, h2 { text-wrap: balance; }
button, a, summary { touch-action: manipulation; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid #38af8b; outline-offset: 5px; }
::selection { background: var(--mint); color: var(--navy); }
[hidden] { display: none !important; }
.container { width: min(1240px, calc(100% - 96px)); margin-inline: auto; }
.icon { flex: 0 0 auto; width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; }
.icon-definitions { position: absolute; width: 0; height: 0; overflow: hidden; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 10px; left: 12px; z-index: 100; padding: 12px 20px; border-radius: 8px; background: var(--mint); color: var(--navy); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.dark-section { background: var(--navy); color: #f5f7ef; }
.light-section { background: var(--paper); }
.section-space { padding-block: 110px; }
.eyebrow { display: flex; align-items: center; gap: 10px; font-size: 12px; line-height: 1.5; font-weight: 650; letter-spacing: .14em; text-transform: uppercase; color: var(--green); }
.dark-section .eyebrow { color: var(--mint); }
.status-dot { display: inline-block; flex: 0 0 auto; width: 6px; height: 6px; background: var(--mint); border-radius: 50%; box-shadow: 0 0 0 4px rgba(146, 233, 197, .08); }
.green-text { color: var(--green); }
.mint-text { color: var(--mint); }
h2 { font-size: clamp(34px, 4.1vw, 56px); line-height: 1.13; letter-spacing: -.045em; }
h2 > span { display: block; }
h3 { font-size: 21px; line-height: 1.35; letter-spacing: -.025em; }
.section-heading { margin-bottom: 46px; }
.section-heading .eyebrow { margin-bottom: 18px; }
.section-heading p:not(.eyebrow) { color: var(--muted); line-height: 1.8; font-size: 17px; }
.split-heading { display: grid; grid-template-columns: 1.4fr 1fr; gap: 60px; align-items: end; }
.split-heading p { max-width: 455px; padding-bottom: 4px; }
.centered { max-width: 740px; margin-inline: auto; text-align: center; }
.centered .eyebrow { justify-content: center; }
.centered p:not(.eyebrow) { max-width: 600px; margin: 22px auto 0; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 52px; padding: 14px 22px; border: 1px solid transparent; border-radius: 10px; font-size: 14px; line-height: 1.5; font-weight: 650; transition: background .2s, transform .2s, box-shadow .2s; }
.button .icon { width: 19px; height: 19px; }
.button.primary { color: var(--navy); background: var(--mint); }
.button:hover { transform: translateY(-2px); box-shadow: 0 7px 20px rgba(80, 184, 146, .16); }
.button.primary:hover { background: #b2f2d8; }
.button.full { width: 100%; }
.text-link { display: inline-flex; align-items: center; gap: 12px; font-weight: 600; font-size: 14px; }
.text-link .icon { width: 18px; height: 18px; transition: transform .2s; }
.text-link:hover .icon { transform: translateX(3px); }
.text-link.small { font-size: 13px; }
.pill { display: inline-flex; align-items: center; padding: 5px 10px; border: 1px solid var(--line); border-radius: 6px; line-height: 1.5; font-size: 10px; font-weight: 650; letter-spacing: .07em; }
.dark-section .pill { border-color: #38525f; color: #acc5cf; }
.product-kicker { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 24px; font-size: 12px; letter-spacing: .11em; font-weight: 650; }
.product-kicker img { border-radius: 9px; }
.product-kicker > .icon { color: var(--mint); }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; color: #edf5f4; background: rgba(7, 23, 36, .91); backdrop-filter: blur(18px); border-bottom: 1px solid rgba(175, 211, 225, .09); transition: box-shadow .2s; }
.site-header[data-scrolled="true"] { box-shadow: 0 6px 28px #04101a25; }
.header-inner { display: flex; align-items: center; gap: 36px; height: 82px; width: min(1340px, calc(100% - 64px)); margin-inline: auto; }
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; gap: 10px; font-size: 24px; font-weight: 700; line-height: 1; letter-spacing: -.035em; }
.brand img { border-radius: 10px; }
.top-nav { display: flex; align-items: center; justify-content: flex-end; gap: 28px; margin-left: auto; font-size: 13px; font-weight: 550; }
.top-nav a { white-space: nowrap; color: #c1d2d8; transition: color .2s; }
.top-nav a:hover { color: var(--mint); }
.top-nav .nav-download { display: flex; align-items: center; gap: 8px; color: var(--mint); }
.nav-download .icon { width: 16px; height: 16px; }
.header-controls { display: flex; align-items: center; gap: 12px; }
.language-switcher { display: flex; align-items: center; gap: 2px; border-left: 1px solid #30434e; padding-left: 18px; }
.language-switcher button { border: 0; background: transparent; color: #b1c2ca; font-size: 11px; line-height: 1.4; padding: 7px 9px; border-radius: 5px; }
.language-switcher button:hover { color: #fff; }
.language-switcher button[aria-pressed="true"] { color: var(--mint); background: #193d3d; }
.icon-button { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; padding: 9px; border: 1px solid #50616a; background: transparent; color: inherit; border-radius: 10px; }
.menu-toggle { display: none; }

.hero { position: relative; overflow: hidden; padding-top: 82px; background: radial-gradient(ellipse at 80% 35%, #104c504a, transparent 48%), radial-gradient(ellipse at 10% 80%, #17303f55, transparent 50%), var(--navy); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1fr 1.04fr; gap: 36px; min-height: 640px; align-items: center; padding-block: 62px 72px; }
.hero-copy { position: relative; z-index: 2; }
.hero h1 { margin-top: 28px; font-size: clamp(52px, 5.25vw, 78px); line-height: 1.08; letter-spacing: -.055em; }
.hero h1 > span { display: block; }
.hero-text { color: #b5c8ce; max-width: 425px; margin-top: 26px; font-size: 17px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 26px; margin-top: 32px; }
.hero-independent { color: #829ea9; font-size: 12px; margin-top: 22px; }
.hero-orbit { position: absolute; width: 1050px; height: 700px; border: 1px solid #85d1c41a; border-radius: 50%; top: 95px; left: 44%; transform: rotate(-24deg); pointer-events: none; }
.hero-orbit::after { content: ""; position: absolute; inset: -30px; border: 1px solid #85d1c40a; border-radius: inherit; }
.hero-scene { position: relative; min-height: 470px; perspective: 1400px; }
.scene-glow { position: absolute; inset: 45px -55px 30px 20px; background: radial-gradient(ellipse, #42b4952b, transparent 65%); filter: blur(18px); }
.scene-orbit { position: absolute; width: 104%; height: 98%; border: 1px solid #82d5c12e; border-radius: 50%; transform: rotate(-20deg); left: -6%; top: 1%; }
.scene-label { position: absolute; top: 5px; left: 32px; font-size: 10px; display: flex; align-items: center; gap: 12px; color: #bed7d9; letter-spacing: .1em; }
.scene-label > span:last-child { color: #688996; }
.scene-player { position: absolute; top: 60px; left: -1%; width: 97%; border: 1px solid #87c7c752; border-radius: 16px; padding: 7px; background: #102a32; overflow: hidden; transform: rotateY(-9deg) rotateZ(-3deg); box-shadow: -8px 22px 80px #0007; }
.scene-player img { border-radius: 9px 9px 2px 2px; width: 100%; }
.scene-player figcaption { display: flex; gap: 9px; align-items: center; padding: 9px 7px 2px; font-size: 10px; color: #bbd1d4; }
.scene-player figcaption .icon { width: 16px; height: 16px; }
.scene-platform { margin-left: auto; font-size: 9px; letter-spacing: .1em; color: #75969f; }
.scene-format { display: flex; gap: 15px; position: absolute; top: 36px; right: -12px; padding: 10px 18px; font-size: 11px; border-radius: 8px; border: 1px solid #96d6c556; background: #102f36; box-shadow: 0 8px 32px #0003; transform: rotate(4deg); color: var(--mint); }
.scene-format span + span { border-left: 1px solid #39716a; padding-left: 15px; }
.scene-server { position: absolute; top: 294px; right: -22px; width: 50%; max-width: 310px; padding: 7px; background: #16313b; border: 1px solid #a5d8ce66; border-radius: 12px; box-shadow: 0 20px 60px #0006; transform: rotateZ(4deg); }
.scene-server img { width: 100%; border-radius: 5px; }
.scene-server figcaption { display: flex; gap: 7px; align-items: center; padding: 1px 4px 7px; font-size: 10px; }
.scene-server figcaption .icon { width: 15px; height: 15px; color: #afd5cb; }
.mini-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--mint); margin-left: auto; }
.scene-coordinate { position: absolute; left: 0; bottom: 3px; color: #567680; font-size: 9px; letter-spacing: .16em; }
.hero-bottom { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-block: 25px; border-top: 1px solid #2a404b; }
.hero-bottom > div { display: flex; align-items: center; gap: 12px; font-size: 12px; color: #abc2c9; }
.hero-bottom .icon { color: #7faeaa; width: 21px; height: 21px; }

.player-layout { display: grid; grid-template-columns: 1.27fr 1fr; gap: 50px; align-items: center; }
.experience { overflow: hidden; background: #10222d; border: 1px solid #203742; border-radius: 14px; box-shadow: 0 24px 44px #173a3220; }
.experience-toolbar { display: flex; align-items: center; gap: 14px; height: 42px; padding-inline: 16px; font-size: 10px; color: #c4d0d4; }
.window-dots { display: flex; gap: 5px; }
.window-dots i { display: block; width: 5px; height: 5px; background: #66818c; border-radius: 50%; }
.window-dots i:first-child { background: #9fd8c5; }
.live-label { margin-left: auto; color: #79919c; font-size: 9px; }
.experience-frame { aspect-ratio: 16 / 9; }
.screenshot-button { position: relative; display: block; width: 100%; height: 100%; padding: 0; border: 0; background: #0a1521; }
.screenshot-button > img { width: 100%; height: 100%; object-fit: cover; }
.image-expand { position: absolute; right: 14px; top: 14px; display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; border: 1px solid #d9efe74f; color: #fff; background: #071724a3; border-radius: 7px; transition: background .2s; }
.image-expand .icon { width: 16px; height: 16px; }
.screenshot-button:hover .image-expand { background: #176d59; }
.experience-tabs { display: flex; gap: 4px; padding: 10px; }
.experience-tabs button { flex: 1; display: flex; justify-content: center; align-items: center; gap: 7px; padding: 10px 5px; border: 0; border-radius: 6px; background: transparent; color: #aec0c8; font-size: 11px; line-height: 1.5; }
.experience-tabs button[aria-selected="true"] { color: var(--mint); background: #224c47; }
.experience-tabs button:hover { color: #fff; }
.experience-tabs .icon { width: 16px; height: 16px; }
.player-features { display: grid; gap: 24px; }
.editorial-feature { display: flex; gap: 16px; }
.feature-symbol { color: var(--green); background: #173f43; display: flex; align-items: center; justify-content: center; width: 42px; height: 42px; flex: 0 0 auto; border-radius: 11px; }
.feature-symbol .icon { width: 23px; height: 23px; }
.editorial-feature h3 { font-size: 20px; margin-bottom: 8px; }
.editorial-feature p { font-size: 14px; line-height: 1.75; color: var(--muted); }
.player-extras { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 22px; margin-top: 44px; padding-top: 27px; border-top: 1px solid var(--line); }
.player-extras > span { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 12px; }
.player-extras .icon { width: 18px; height: 18px; color: var(--green); }
.player-extras .text-link { color: var(--green); }

.server-section { position: relative; background: radial-gradient(ellipse at 80% 15%, #193b454f, transparent 55%), var(--navy); }
.server-overview { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.server-intro { max-width: 490px; margin-block: 25px 30px; color: #afc4cc; font-size: 16px; line-height: 1.8; }
.server-spec { display: flex; flex-wrap: wrap; gap: 18px; font-size: 11px; color: #7f9ea9; margin-top: 24px; }
.server-spec > span + span { border-left: 1px solid #33505c; padding-left: 18px; }
.server-preview { overflow: hidden; border-radius: 13px; padding: 9px; background: #203541; border: 1px solid #405b67; box-shadow: 0 30px 60px #0004; transform: rotate(1.5deg); }
.server-preview-top { display: flex; align-items: center; gap: 15px; padding: 3px 8px 12px; color: #abc3cb; font-size: 10px; }
.server-preview img { width: 100%; border-radius: 5px; }
.server-preview figcaption { display: flex; align-items: center; justify-content: center; gap: 10px; font-size: 11px; color: #9db7bf; padding-block: 13px 6px; }
.server-feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 64px; border-top: 1px solid #2c4552; }
.server-feature-grid article { padding: 26px 28px 26px 0; }
.server-feature-grid article:not(:nth-child(3n+1)) { padding-left: 28px; border-left: 1px solid #2c4552; }
.server-feature-grid article:nth-child(n+4) { border-top: 1px solid #2c4552; }
.server-feature-grid article > .icon { color: var(--mint); width: 25px; height: 25px; margin-bottom: 14px; }
.server-feature-grid h3 { margin-bottom: 8px; font-size: 18px; }
.server-feature-grid p { color: #8faab6; font-size: 13px; max-width: 305px; }

.connection-flow { display: grid; grid-template-columns: 1fr .45fr 1fr .45fr 1fr; align-items: start; max-width: 980px; margin: 56px auto 60px; }
.flow-node { display: flex; flex-direction: column; align-items: center; text-align: center; }
.flow-icon { width: 90px; height: 90px; display: flex; justify-content: center; align-items: center; border: 1px solid #355666; border-radius: 24px; background: #132f3e; box-shadow: 0 12px 25px #0002; margin-bottom: 20px; color: var(--green); }
.flow-icon .icon { width: 34px; height: 34px; }
.flow-icon.server-flow { background: #16403e; border-color: #3a7468; }
.flow-icon.player-flow { background: var(--navy); color: var(--mint); border-color: var(--navy); }
.flow-node strong { font-size: 16px; font-weight: 650; }
.flow-node > span { font-size: 12px; color: var(--muted); margin-top: 5px; }
.flow-link { display: flex; align-items: center; position: relative; gap: 0; height: 90px; color: #75c9ba; }
.flow-link > span:not(.flow-protocol) { flex: 1; border-top: 1px dashed #416e73; }
.flow-link .icon { width: 17px; height: 17px; }
.flow-protocol { position: absolute; top: 17px; left: 50%; transform: translateX(-50%); font-size: 9px; font-weight: 600; color: var(--green); white-space: nowrap; letter-spacing: .06em; }
.setup-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; border-top: 1px solid var(--line); padding-top: 30px; margin-bottom: 40px; }
.setup-steps article { display: flex; gap: 14px; }
.step-number { font-size: 12px; color: #75c9ba; padding-top: 4px; font-variant-numeric: tabular-nums; }
.setup-steps h3 { font-size: 17px; margin-bottom: 8px; }
.setup-steps p { font-size: 13px; color: var(--muted); max-width: 300px; }
details > summary { cursor: pointer; list-style: none; }
details > summary::-webkit-details-marker { display: none; }
summary { display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.plus { font-size: 23px; font-weight: 350; line-height: 1; color: var(--green); transition: transform .2s; }
details[open] > summary .plus { transform: rotate(45deg); }
.compatibility { border: 1px solid var(--line); border-radius: 12px; background: #122c3a; }
.compatibility summary { padding: 19px 24px; font-size: 14px; font-weight: 600; }
.compatibility summary > span:first-child { display: flex; align-items: center; gap: 12px; }
.compatibility summary .icon { width: 19px; height: 19px; color: var(--green); }
.compatibility-content { padding: 0 24px 24px; }
.compatibility-content > p { font-size: 13px; color: var(--muted); margin-bottom: 18px; max-width: 800px; }
.compat-table-wrap { overflow-x: auto; }
.compat-table-wrap table { width: 100%; border-collapse: collapse; font-size: 12px; text-align: left; background: #0f2633; }
.compat-table-wrap th, .compat-table-wrap td { padding: 13px 16px; border-bottom: 1px solid var(--line); }
.compat-table-wrap thead { color: var(--muted); }
.compat-table-wrap td { color: var(--green); }
.compat-table-wrap th { font-weight: 600; }

.download-section { background: #081a27; border-block: 1px solid #25414e; }
.download-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; max-width: 1020px; margin-inline: auto; }
.download-card { scroll-margin-top: 110px; padding: 35px; background: #122b39; border: 1px solid #365460; border-radius: 18px; display: flex; flex-direction: column; }
.download-card-top { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
.download-card-top img { border-radius: 14px; }
.download-card-top .pill { color: var(--green); background: #1d4544; }
.download-product-icon { display: flex; align-items: center; justify-content: center; width: 56px; height: 56px; background: var(--navy); color: var(--mint); border-radius: 14px; }
.download-product-icon .icon { width: 29px; height: 29px; }
.download-card h3 { font-size: 29px; letter-spacing: -.035em; }
.download-description { font-size: 14px; color: var(--muted); margin-top: 8px; }
.platform-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-block: 24px 30px; min-height: 28px; }
.platform-tags > span { font-size: 10px; font-weight: 600; padding: 4px 8px; border-radius: 5px; background: #1d3b49; color: #b1cbd0; }
.platform-tags small { font-weight: 400; font-size: 9px; margin-left: 4px; }
.download-note { font-size: 12px; color: var(--muted); margin-block: 17px 20px; }
.download-card > .text-link, .download-mirrors { margin-top: auto; }
.download-mirrors { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 12px; color: var(--green); }
.download-mirrors a:hover { text-decoration: underline; text-underline-offset: 3px; }
.download-mirrors > span { color: #466575; }
.source-link { margin-left: auto; }
.faq-section { padding-block: 90px; }
.faq-layout { display: grid; grid-template-columns: 1fr 1.65fr; gap: 90px; }
.faq-layout .eyebrow { margin-bottom: 18px; }
.faq-layout h2 { font-size: 38px; margin-bottom: 24px; }
.faq-layout .text-link { color: var(--green); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary { padding: 20px 0; font-size: 15px; font-weight: 550; }
.faq-list details > p { padding: 0 25px 23px 0; font-size: 14px; line-height: 1.8; color: var(--muted); }
.site-footer { padding-block: 43px 24px; }
.footer-top { display: flex; align-items: center; gap: 35px; padding-bottom: 30px; border-bottom: 1px solid #2b424e; }
.footer-top p { font-size: 13px; color: #9eb8c2; }
.footer-top > .text-link { margin-left: auto; font-size: 12px; color: #b9ced5; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; padding-top: 20px; font-size: 10px; color: #829eaa; }
.footer-bottom > div { display: flex; flex-wrap: wrap; gap: 24px; }
.footer-bottom a:hover { color: var(--mint); }
.image-dialog { position: fixed; padding: 12px; width: min(1200px, calc(100vw - 40px)); max-width: none; max-height: calc(100dvh - 40px); border: 1px solid #60867d; border-radius: 16px; background: var(--navy); color: #fff; box-shadow: 0 30px 100px #0006; overflow: auto; }
.image-dialog::backdrop { background: #030c15d9; backdrop-filter: blur(5px); }
.image-dialog img { width: 100%; border-radius: 8px; }
.image-dialog form { position: sticky; top: 0; z-index: 1; height: 0; }
.dialog-close { position: absolute; right: 10px; top: 10px; width: 40px; height: 40px; background: #071724db; border-color: #8096a3; }
.image-dialog p { font-size: 13px; color: #adc8d0; padding: 12px 4px 2px; }
body.dialog-open { overflow: hidden; }

@media (min-width: 1800px) { .hero-grid { min-height: 700px; } }
@media (max-width: 1150px) {
  .header-inner { width: calc(100% - 40px); gap: 18px; }
  .top-nav { gap: 20px; font-size: 12px; }
  .language-switcher { padding-left: 12px; }
  .container { width: calc(100% - 64px); }
  .hero-grid { gap: 24px; min-height: 590px; }
  .hero h1 { font-size: 62px; }
  .hero-scene { min-height: 420px; }
  .scene-server { top: 260px; right: -10px; }
  .scene-format { right: 0; }
  .hero-text { font-size: 16px; }
  .hero-actions { gap: 18px; }
  .hero-actions .button { padding-inline: 16px; }
  .player-layout { gap: 30px; }
  .player-features { gap: 22px; }
  .editorial-feature { gap: 12px; }
  .editorial-feature h3 { font-size: 18px; }
  .editorial-feature p { font-size: 13px; }
  .server-overview { gap: 44px; }
  .split-heading { gap: 35px; }
  .faq-layout { gap: 50px; }
}
@media (max-width: 900px) {
  html { scroll-padding-top: 90px; }
  .header-inner { height: 72px; }
  .brand { font-size: 22px; }
  .brand img { width: 36px; height: 36px; }
  .header-controls { margin-left: auto; }
  .language-switcher { border: 0; }
  .menu-toggle { display: inline-flex; width: 38px; height: 38px; }
  .top-nav { display: none; position: absolute; top: 72px; left: 0; right: 0; margin: 0; padding: 18px 32px 24px; flex-direction: column; align-items: stretch; gap: 0; background: #0a1e2b; border-bottom: 1px solid #35505c; font-size: 15px; box-shadow: 0 12px 30px #0002; }
  .top-nav[data-open="true"] { display: flex; }
  .top-nav a { padding-block: 12px; }
  .top-nav .nav-download { padding-top: 17px; }
  .section-space { padding-block: 80px; }
  .hero { padding-top: 72px; }
  .hero-grid { grid-template-columns: 1fr; padding-block: 50px 35px; gap: 25px; }
  .hero-copy { max-width: 630px; }
  .hero h1 { font-size: clamp(55px, 7.8vw, 70px); max-width: 650px; }
  .hero-text { max-width: 500px; }
  .hero-scene { min-height: 475px; width: min(600px, 92%); margin-inline: auto; margin-top: 15px; }
  .scene-server { top: 300px; }
  .scene-coordinate { left: 10px; }
  .hero-bottom { gap: 20px; }
  .hero-bottom > div { gap: 8px; font-size: 11px; }
  .split-heading { grid-template-columns: 1fr; gap: 22px; }
  .split-heading p { max-width: 600px; }
  .player-layout { grid-template-columns: 1fr; gap: 34px; }
  .player-features { grid-template-columns: repeat(3, 1fr); gap: 22px; }
  .editorial-feature { display: block; }
  .feature-symbol { margin-bottom: 16px; }
  .player-extras { justify-content: flex-start; gap: 18px 26px; }
  .player-extras .text-link { margin-left: auto; }
  .server-overview { grid-template-columns: 1fr; gap: 50px; }
  .server-intro { max-width: 600px; }
  .server-preview { max-width: 630px; width: 95%; margin-inline: auto; }
  .server-feature-grid { margin-top: 50px; }
  .server-feature-grid article { padding-right: 20px; }
  .server-feature-grid article:not(:nth-child(3n+1)) { padding-left: 20px; }
  .download-card { padding: 28px; }
  .faq-layout { grid-template-columns: 1fr; gap: 25px; }
  .faq-layout h2 { margin-bottom: 15px; }
  .footer-top { gap: 22px; }
}
@media (max-width: 600px) {
  .container { width: calc(100% - 40px); }
  .header-inner { width: calc(100% - 32px); gap: 10px; }
  .brand { font-size: 21px; gap: 7px; }
  .brand img { width: 32px; height: 32px; border-radius: 8px; }
  .header-controls { gap: 6px; }
  .language-switcher { padding: 0; gap: 0; }
  .language-switcher button { padding: 8px 7px; font-size: 10px; }
  .menu-toggle { width: 34px; height: 34px; padding: 7px; }
  .section-space { padding-block: 64px; }
  .eyebrow { font-size: 10px; letter-spacing: .1em; }
  .hero-grid { padding-block: 42px 22px; gap: 10px; }
  .hero h1 { font-size: clamp(43px, 11.3vw, 62px); line-height: 1.1; margin-top: 23px; }
  .hero-text { margin-top: 22px; font-size: 15px; }
  .hero-actions { gap: 16px; margin-top: 26px; }
  .hero-actions .button { font-size: 12px; gap: 8px; min-height: 48px; padding: 12px 14px; }
  .hero-actions .text-link { font-size: 12px; gap: 7px; }
  .hero-independent { font-size: 11px; max-width: 300px; }
  .hero-scene { width: 100%; min-height: 350px; margin-top: 25px; }
  .scene-label { top: 0; left: 10px; font-size: 8px; gap: 8px; }
  .scene-player { top: 47px; left: 1%; width: 96%; padding: 5px; border-radius: 12px; }
  .scene-player img { border-radius: 6px 6px 2px 2px; }
  .scene-player figcaption { font-size: 8px; padding: 7px 4px 2px; }
  .scene-platform { font-size: 7px; }
  .scene-format { top: 25px; right: 3px; font-size: 9px; gap: 10px; padding: 7px 11px; border-radius: 6px; }
  .scene-format span + span { padding-left: 10px; }
  .scene-server { top: 212px; right: 0; width: 52%; padding: 5px; border-radius: 9px; }
  .scene-server figcaption { font-size: 8px; gap: 5px; padding-bottom: 5px; }
  .scene-server figcaption .icon { width: 12px; height: 12px; }
  .scene-coordinate { font-size: 7px; bottom: 0; left: 7px; }
  .scene-orbit { width: 105%; height: 92%; left: -4%; top: 4%; }
  .hero-bottom { flex-wrap: wrap; justify-content: flex-start; gap: 16px 25px; padding-block: 22px; }
  .hero-bottom > div { font-size: 10px; }
  .hero-bottom .icon { width: 17px; height: 17px; }
  h2 { font-size: 35px; letter-spacing: -.04em; }
  .section-heading { margin-bottom: 30px; }
  .section-heading p:not(.eyebrow) { font-size: 15px; }
  .product-kicker { gap: 9px; font-size: 10px; letter-spacing: .08em; margin-bottom: 22px; }
  .product-kicker img { width: 30px; height: 30px; }
  .product-kicker .pill { font-size: 9px; padding: 4px 7px; }
  .experience-toolbar { padding-inline: 12px; gap: 10px; height: 36px; font-size: 9px; }
  .live-label { font-size: 8px; }
  .experience-tabs { padding: 7px; gap: 3px; }
  .experience-tabs button { font-size: 10px; padding: 8px 4px; gap: 5px; }
  .experience-tabs .icon { width: 14px; height: 14px; }
  .player-features { grid-template-columns: 1fr; gap: 25px; }
  .editorial-feature { display: flex; gap: 14px; }
  .feature-symbol { margin: 0; width: 39px; height: 39px; }
  .editorial-feature h3 { font-size: 19px; }
  .editorial-feature p { font-size: 14px; }
  .player-extras { display: grid; gap: 16px; margin-top: 30px; padding-top: 23px; }
  .player-extras > span { font-size: 12px; }
  .player-extras .text-link { margin: 5px 0 0; }
  .server-intro { font-size: 15px; margin-top: 22px; }
  .server-overview { gap: 35px; }
  .server-preview { width: 98%; padding: 6px; transform: none; }
  .server-preview-top { font-size: 9px; padding-bottom: 9px; }
  .server-preview figcaption { font-size: 10px; }
  .server-feature-grid { grid-template-columns: 1fr 1fr; margin-top: 36px; }
  .server-feature-grid article { padding: 22px 18px 22px 0; }
  .server-feature-grid article:not(:nth-child(3n+1)) { padding-left: 0; border-left: 0; }
  .server-feature-grid article:nth-child(even) { padding-left: 18px; border-left: 1px solid #2c4552; }
  .server-feature-grid article:nth-child(n+3) { border-top: 1px solid #2c4552; }
  .server-feature-grid h3 { font-size: 16px; }
  .server-feature-grid p { font-size: 12px; }
  .server-feature-grid article > .icon { width: 22px; height: 22px; margin-bottom: 12px; }
  .connection-flow { margin-block: 36px 40px; grid-template-columns: 1fr .18fr 1fr .18fr 1fr; }
  .flow-icon { width: 66px; height: 66px; border-radius: 18px; margin-bottom: 15px; }
  .flow-icon .icon { width: 27px; height: 27px; }
  .flow-node strong { font-size: 12px; }
  .flow-node > span { font-size: 10px; line-height: 1.6; max-width: 100px; }
  .flow-link { height: 66px; }
  .flow-link .icon { width: 14px; height: 14px; }
  .flow-protocol { top: 5px; font-size: 6px; }
  .setup-steps { grid-template-columns: 1fr; gap: 25px; padding-top: 24px; margin-bottom: 30px; }
  .setup-steps h3 { font-size: 17px; margin-bottom: 5px; }
  .setup-steps p { max-width: none; }
  .compatibility summary { padding: 17px 16px; font-size: 12px; gap: 12px; }
  .compatibility summary > span:first-child { gap: 9px; }
  .compatibility-content { padding: 0 16px 18px; }
  .compat-table-wrap th, .compat-table-wrap td { padding: 11px; white-space: nowrap; }
  .download-grid { grid-template-columns: 1fr; gap: 20px; }
  .download-card { padding: 28px; }
  .download-card h3 { font-size: 29px; }
  .download-note { font-size: 12px; }
  .faq-section { padding-block: 60px; }
  .faq-layout h2 { font-size: 34px; }
  .faq-list summary { font-size: 14px; gap: 20px; }
  .faq-list details > p { font-size: 13px; }
  .footer-top { flex-wrap: wrap; gap: 18px; padding-bottom: 25px; }
  .footer-top p { order: 3; width: 100%; font-size: 12px; }
  .footer-top > .text-link { font-size: 11px; }
  .footer-bottom { gap: 13px; }
  .footer-bottom > div { width: 100%; order: 3; gap: 18px; }
  .footer-bottom > span:last-child { font-size: 9px; }
  .image-dialog { width: calc(100vw - 20px); padding: 7px; border-radius: 10px; }
  .image-dialog p { font-size: 11px; }
}
@media (max-width: 360px) {
  .container { width: calc(100% - 32px); }
  .header-inner { width: calc(100% - 24px); }
  .brand { font-size: 19px; }
  .brand img { width: 28px; height: 28px; }
  .language-switcher button { padding-inline: 5px; font-size: 9px; }
  .hero-scene { min-height: 310px; }
  .scene-server { top: 190px; }
  .hero-actions { gap: 12px; }
  .hero-actions .button { padding-inline: 11px; }
  .experience-tabs button { font-size: 9px; }
  .experience-tabs .icon { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* Shared Thru3D night palette. Local grid and light trails echo the Meta artwork. */
.light-section {
  background-image: linear-gradient(#80caca06 1px, transparent 1px), linear-gradient(90deg, #80caca06 1px, transparent 1px);
  background-size: 64px 64px;
}
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(#8ddcce08 1px, transparent 1px), linear-gradient(90deg, #8ddcce08 1px, transparent 1px); background-size: 80px 80px; mask-image: linear-gradient(90deg, transparent 15%, #000 90%); pointer-events: none; }
.hero::after { content: ""; position: absolute; width: 700px; height: 1px; background: linear-gradient(90deg, transparent, #67dacb80, transparent); right: -150px; top: 250px; transform: rotate(-35deg); pointer-events: none; }
.eyebrow, .product-kicker, .scene-label, .scene-coordinate, .scene-format, .pill, .flow-protocol { font-family: "Cascadia Code", "SFMono-Regular", Consolas, "Microsoft YaHei", "Yu Gothic", monospace; }
.experience { border-color: #447376; box-shadow: 0 20px 60px #0003, 0 0 40px #53c3a00b; }
.feature-symbol { border: 1px solid #36615d; }
.flow-icon.player-flow { background: linear-gradient(135deg, #183744, #102536); border-color: #579e90; }
.download-card { box-shadow: inset 0 1px #b2f8e312, 0 22px 44px #0002; }
.download-card:hover { border-color: #558778; }
.download-card-top .pill { border-color: #476f64; }
.download-card .button.primary { background: linear-gradient(105deg, #92e9c5, #a4e9df); }
.player-source-links { display: flex; flex-wrap: wrap; gap: 16px 24px; margin-top: auto; color: var(--mint); }
.button.primary { box-shadow: 0 0 28px #94e9c511; }
.download-card .download-note { color: #b0c2c9; }
.image-expand { background: #071724b3; }
.server-download .download-product-icon { border: 1px solid #436d70; }
:lang(zh-CN) h1, :lang(ja) h1 { letter-spacing: -.045em; }
@media (max-width: 600px) { .player-source-links { gap: 16px; } }