:root {
  color-scheme: light;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --paper: #f7f8f4;
  --surface: #ffffff;
  --ink: #1b3027;
  --muted: #5d6e64;
  --line: #dae3d9;
  --accent: #1d6544;
  --accent-hover: #134d33;
  --accent-soft: #e8f0e2;
  --diagram: #e9efdf;
  --diagram-line: #c5d5bd;
  --diagram-core: #1d6544;
  --diagram-core-text: #f5f8ee;
  --band: #153d2e;
  --band-text: #f1f5ea;
  --band-muted: #c2d4c4;
  --highlight: #d7e7ac;
  --focus: #4a83dc;
  --shadow: 0 16px 40px #1833210a;
  --radius: 16px;
  --wide: 1200px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #101b16; --surface: #17271f; --ink: #e8efe5; --muted: #acbdb0;
    --line: #33473a; --accent: #aad2a0; --accent-hover: #c7e4bc;
    --accent-soft: #263d2e; --diagram: #1c3024; --diagram-line: #3b5840;
    --diagram-core: #afd0a0; --diagram-core-text: #12271b;
    --band: #1c3627; --band-text: #f1f5ea; --band-muted: #c2d4c4;
    --shadow: 0 16px 40px #00000010;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #101b16; --surface: #17271f; --ink: #e8efe5; --muted: #acbdb0;
  --line: #33473a; --accent: #aad2a0; --accent-hover: #c7e4bc;
  --accent-soft: #263d2e; --diagram: #1c3024; --diagram-line: #3b5840;
  --diagram-core: #afd0a0; --diagram-core-text: #12271b;
  --band: #1c3627; --band-text: #f1f5ea; --band-muted: #c2d4c4;
  --shadow: 0 16px 40px #00000010;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 112px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 15px/1.8 var(--font-sans); -webkit-font-smoothing: antialiased; }
body, button { font-family: var(--font-sans); }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--focus); outline-offset: 5px; }
::selection { color: var(--ink); background: var(--accent-soft); }
svg.icon { display: inline-block; width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; vertical-align: middle; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { font-weight: 600; line-height: 1.35; text-wrap: balance; }
img, svg { max-width: 100%; }
.container { width: min(var(--wide), calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: fixed; left: 20px; top: -90px; padding: 10px 20px; background: var(--surface); z-index: 20; border: 1px solid var(--accent); }
.skip-link:focus { top: 10px; }
.site-header { position: sticky; top: 0; z-index: 10; background: var(--paper); border-bottom: 1px solid var(--line); }
.header-inner { display: grid; grid-template-columns: 1fr auto 1fr; gap: 35px; min-height: 89px; align-items: center; }
.brand { display: inline-flex; gap: 12px; align-items: center; justify-self: start; line-height: 1; }
.brand-name { font-size: 29px; font-weight: 750; letter-spacing: -.8px; color: var(--accent); }
.brand-sub { display: block; margin-top: 8px; font-size: 10px; font-weight: 500; letter-spacing: 2px; color: var(--muted); }
.nav { display: flex; gap: 32px; align-items: center; height: 100%; }
.nav a { position: relative; display: flex; align-items: center; height: 100%; font-size: 14px; color: var(--muted); white-space: nowrap; }
.nav a:hover, .nav a[aria-current] { color: var(--accent); }
.nav a[aria-current]::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 3px; background: var(--accent); }
.header-actions { display: flex; gap: 7px; align-items: center; justify-self: end; }
.control { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 40px; min-width: 40px; padding: 0 9px; background: transparent; border: 1px solid transparent; border-radius: 8px; font-size: 13px; }
.control:hover { background: var(--accent-soft); border-color: var(--line); }
.control .icon { width: 18px; height: 18px; }
.theme-sun { display: none !important; }
:root[data-theme="dark"] .theme-sun { display: inline-block !important; }
:root[data-theme="dark"] .theme-moon { display: none !important; }
.actions-divider { height: 20px; width: 1px; background: var(--line); margin: 0 3px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 23px; color: var(--accent); font-size: 12px; font-weight: 600; letter-spacing: 1.4px; line-height: 1.7; }
.eyebrow::before { content: ""; display: block; width: 22px; height: 2px; flex-shrink: 0; background: currentColor; }
.hero { display: grid; grid-template-columns: 1.04fr 1fr; gap: 50px; padding-block: 83px 75px; align-items: center; }
.hero-title { font-size: clamp(40px, 4.4vw, 62px); line-height: 1.4; letter-spacing: -1.8px; margin-bottom: 24px; }
.hero-title > span { display: block; }
.hero-title .accent { color: var(--accent); }
.hero-description { max-width: 490px; color: var(--muted); font-size: 16px; line-height: 1.95; }
.button-row { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 18px; border: 1px solid var(--accent); border-radius: 7px; background: var(--accent); color: var(--paper); padding: 12px 21px; font-size: 14px; font-weight: 600; line-height: 1.7; transition: background .15s; }
.button .icon { width: 19px; height: 19px; }
.button:hover { background: var(--accent-hover); }
.button.secondary { background: transparent; color: var(--ink); border-color: var(--line); }
.button.secondary:hover { background: var(--accent-soft); border-color: var(--accent); }
.hero-platforms { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 30px; font-size: 11px; color: var(--muted); }
.hero-platforms > span { display: inline-flex; align-items: center; gap: 6px; }
.hero-platforms .icon { width: 15px; height: 15px; }
.flow-figure { position: relative; background-color: var(--diagram); border: 1px solid var(--line); border-radius: var(--radius); padding: 27px 26px 20px; min-width: 0; overflow: hidden; }
.flow-figure::before, .location-visual::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--diagram-line) 1px, transparent 1px), linear-gradient(90deg, var(--diagram-line) 1px, transparent 1px); background-size: 32px 32px; opacity: .4; pointer-events: none; }
.flow-figure > *, .location-visual > * { position: relative; }
.figure-top { display: flex; justify-content: space-between; align-items: center; gap: 16px; font: 10px/1.7 var(--font-mono); letter-spacing: 1.2px; color: var(--muted); }
.figure-top b { color: var(--accent); letter-spacing: -.5px; font: 700 18px/1 var(--font-sans); }
.flow-nodes { display: grid; grid-template-columns: 1fr 38px 1.2fr 38px 1fr; align-items: center; gap: 0; padding-top: 55px; }
.flow-node { display: flex; flex-direction: column; align-items: center; gap: 10px; min-height: 95px; text-align: center; font-size: 12px; font-weight: 600; line-height: 1.5; }
.flow-node > .icon { box-sizing: content-box; padding: 13px; width: 27px; height: 27px; background: var(--surface); border: 1px solid var(--diagram-line); border-radius: 12px; }
.flow-node.core { min-height: 146px; background: var(--diagram-core); color: var(--diagram-core-text); border-radius: 16px; padding: 21px 8px 17px; gap: 8px; box-shadow: var(--shadow); }
.flow-node.core > .icon { box-sizing: border-box; width: 40px; height: 40px; padding: 0; background: none; border: 0; border-radius: 0; }
.core small { font-size: 10px; font-weight: 400; }
.flow-line { border-top: 1px dashed var(--accent); position: relative; margin-top: -22px; }
.flow-line::after { content: ""; width: 5px; height: 5px; border-top: 1px solid var(--accent); border-right: 1px solid var(--accent); transform: rotate(45deg); position: absolute; right: 0; top: -3px; }
.flow-checks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 34px; padding: 17px 0; border-top: 1px solid var(--diagram-line); border-bottom: 1px solid var(--diagram-line); font-size: 10px; color: var(--accent); }
.flow-checks span { display: flex; gap: 3px; align-items: center; justify-content: center; }
.flow-checks .icon { width: 13px; height: 13px; }
.flow-figure figcaption { color: var(--muted); font-size: 10px; margin-top: 16px; line-height: 1.7; }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line); }
.pillar { display: flex; align-items: flex-start; gap: 18px; padding: 28px 30px; }
.pillar:first-child { padding-left: 0; }
.pillar + .pillar { border-left: 1px solid var(--line); }
.number { color: var(--accent); font: 12px/1.8 var(--font-mono); }
.pillar strong { display: block; margin-bottom: 2px; font-size: 16px; font-weight: 600; }
.pillar p { color: var(--muted); font-size: 12px; }
.section { padding-block: 80px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-bottom: 35px; }
.section-heading h2, .section-title { font-size: 34px; letter-spacing: -.7px; }
.section-heading .eyebrow { margin-bottom: 12px; }
.section-heading > p { max-width: 390px; color: var(--muted); font-size: 14px; }
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.capability { padding: 30px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; }
.capability > .icon { width: 29px; height: 29px; margin-bottom: 25px; color: var(--accent); }
.capability h3 { font-size: 18px; margin-bottom: 12px; }
.capability p { font-size: 13px; color: var(--muted); line-height: 1.95; }
.text-link { display: inline-flex; gap: 12px; align-items: center; font-size: 13px; font-weight: 600; color: var(--accent); }
.text-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.text-link .icon { width: 17px; height: 17px; }
.section-link { margin-top: 24px; }
.journey-band { background: var(--band); color: var(--band-text); border-radius: var(--radius); padding: 42px 46px; display: grid; grid-template-columns: 1fr 1.5fr; gap: 50px; align-items: center; }
.journey-band h2 { font-size: 29px; margin-bottom: 14px; }
.journey-band p { color: var(--band-muted); font-size: 13px; }
.journey-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.journey-step { border-top: 1px solid var(--band-muted); padding-top: 18px; }
.journey-step small { font: 11px/1.7 var(--font-mono); color: var(--highlight); }
.journey-step strong { display: block; font-size: 15px; margin: 8px 0; }
.journey-step p { font-size: 11px; }
.bottom-cta { display: flex; justify-content: space-between; align-items: center; gap: 32px; padding-block: 60px; }
.bottom-cta h2 { font-size: 27px; margin-bottom: 10px; }
.bottom-cta p { color: var(--muted); font-size: 13px; }
.site-footer { border-top: 1px solid var(--line); padding-block: 36px 22px; }
.footer-main { display: flex; justify-content: space-between; gap: 35px; padding-bottom: 28px; }
.footer-company { font-size: 13px; font-weight: 600; }
.footer-tagline { color: var(--muted); font-size: 12px; margin-top: 7px; }
.footer-links { display: flex; align-items: flex-start; gap: 30px; color: var(--muted); font-size: 12px; }
.footer-links a:hover, .footer-bottom a:hover { color: var(--accent); text-decoration: underline; }
.footer-bottom { display: flex; justify-content: space-between; gap: 15px; border-top: 1px solid var(--line); padding-top: 17px; color: var(--muted); font-size: 10px; }
.footer-meta { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 20px; }
.page-intro { padding-block: 58px 40px; max-width: 820px; }
.page-intro .eyebrow { margin-bottom: 17px; }
.page-intro h1 { font-size: 46px; letter-spacing: -1px; margin-bottom: 20px; }
.page-intro > p { font-size: 15px; color: var(--muted); line-height: 1.95; max-width: 710px; }
.page-intro .intro-note { font-size: 11px; margin-top: 17px; padding-left: 14px; border-left: 2px solid var(--line); }
.anchor-nav { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 40px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.anchor-nav a { border: 1px solid var(--line); padding: 6px 16px; font-size: 12px; border-radius: 30px; }
.anchor-nav a:hover { border-color: var(--accent); background: var(--accent-soft); }
.product-group { display: grid; grid-template-columns: 235px 1fr; gap: 40px; padding-block: 32px 40px; border-bottom: 1px solid var(--line); }
.product-group:last-of-type { border-bottom: none; }
.group-heading .number { display: block; margin-bottom: 8px; }
.group-heading h2 { font-size: 25px; margin-bottom: 13px; }
.group-heading > p { font-size: 12px; color: var(--muted); }
.module-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 40px; }
.module { min-width: 0; }
.module-top { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.module-top > .icon { color: var(--accent); width: 21px; height: 21px; }
.module h3 { font-size: 16px; }
.module p { font-size: 13px; color: var(--muted); }
.release-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.release { border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.release-main { padding: 30px 32px; flex: 1; }
.release-line { display: flex; gap: 12px; align-items: center; color: var(--accent); font-size: 12px; margin-bottom: 20px; }
.release-line .icon { width: 18px; height: 18px; }
.release h2 { font-size: 38px; line-height: 1.3; letter-spacing: -1px; }
.release h2 small { font-size: 19px; color: var(--muted); font-weight: 400; letter-spacing: 0; margin-left: 8px; }
.release p { font-size: 13px; color: var(--muted); margin-block: 18px; max-width: 440px; }
.release-id { font: 10px/1.8 var(--font-mono); color: var(--muted); overflow-wrap: anywhere; padding: 10px 0; border-top: 1px solid var(--line); }
.release .button { margin-top: 13px; }
.release-bottom { display: flex; gap: 7px; align-items: center; padding: 13px 32px; background: var(--accent-soft); color: var(--accent); font-size: 10px; }
.release-bottom .icon { width: 14px; height: 14px; }
.release.rc .release-bottom { background: var(--paper); color: var(--muted); border-top: 1px solid var(--line); }
.download-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 25px; color: var(--muted); font-size: 11px; margin-top: 18px; }
.download-meta .text-link { font-size: 11px; }
.download-section { padding-block: 48px 0; }
.download-section h2 { font-size: 26px; margin-bottom: 9px; }
.download-section > p { color: var(--muted); font-size: 13px; margin-bottom: 23px; }
.package-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 12px; }
.package-table th { color: var(--muted); font-size: 11px; font-weight: 500; padding: 12px 20px; background: var(--accent-soft); border-block: 1px solid var(--line); }
.package-table td { padding: 19px 20px; border-bottom: 1px solid var(--line); vertical-align: top; }
.package-table td:first-child { width: 28%; }
.package-name { display: flex; gap: 10px; align-items: center; font-weight: 600; }
.package-name .icon { width: 19px; height: 19px; color: var(--accent); }
.package-table td:nth-child(2) { color: var(--muted); }
.package-table td:last-child { color: var(--muted); }
.verify-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; padding: 30px 32px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); margin-top: 40px; }
.verify-panel h2 { font-size: 22px; margin-bottom: 13px; }
.verify-panel p { color: var(--muted); font-size: 12px; }
.verify-panel .text-link { font-size: 12px; margin-top: 12px; }
.commands { display: grid; gap: 14px; }
.command-label { font-size: 10px; color: var(--muted); }
.commands code { display: block; background: var(--paper); border: 1px solid var(--line); padding: 12px 14px; border-radius: 6px; font: 11px/1.8 var(--font-mono); color: var(--ink); overflow-wrap: anywhere; margin-top: 4px; }
.history-row { display: flex; gap: 26px; align-items: center; margin-block: 30px 65px; padding: 23px 0; border-block: 1px solid var(--line); }
.history-row > .icon { color: var(--accent); width: 28px; height: 28px; }
.history-row > div { flex: 1; }
.history-row h2 { font-size: 17px; margin-bottom: 6px; }
.history-row p { color: var(--muted); font-size: 12px; }
.history-row .text-link { white-space: nowrap; }
.about-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 80px; align-items: center; padding-block: 68px 58px; }
.about-intro .eyebrow { margin-bottom: 22px; }
.about-intro h1 { font-size: 36px; letter-spacing: -.5px; line-height: 1.6; margin-bottom: 11px; }
.legal-english { font-size: 14px; color: var(--muted); line-height: 1.7; }
:lang(en) .legal-english { display: none; }
.about-description { border-top: 1px solid var(--line); margin-top: 28px; padding-top: 25px; color: var(--muted); font-size: 14px; }
.location-visual { min-height: 290px; background: var(--diagram); border: 1px solid var(--line); border-radius: var(--radius); position: relative; padding: 27px; overflow: hidden; }
.location-caption { font: 10px/1.8 var(--font-mono); letter-spacing: 2px; color: var(--muted); }
.beijing-label { font-size: 43px; font-weight: 700; letter-spacing: 1px; margin-top: 24px; color: var(--accent); }
.city-pin { display: flex; align-items: center; gap: 10px; margin-top: 24px; }
.city-pin > .icon { color: var(--paper); background: var(--accent); padding: 10px; box-sizing: content-box; width: 23px; height: 23px; border-radius: 50%; }
.city-pin strong { display: block; font-size: 13px; }
.city-pin small { color: var(--muted); font-size: 10px; }
.contact-section { padding-block: 14px 70px; }
.contact-section h2 { font-size: 27px; margin-bottom: 28px; }
.contact-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 24px; }
.contact-address { padding: 32px; border: 1px solid var(--line); background: var(--surface); border-radius: 12px; }
.contact-label { display: flex; gap: 10px; align-items: center; color: var(--muted); font-size: 11px; margin-bottom: 15px; }
.contact-label .icon { width: 19px; height: 19px; color: var(--accent); }
address { font-style: normal; font-size: 17px; line-height: 1.9; max-width: 490px; }
.postal { display: block; margin-top: 23px; font-size: 12px; color: var(--muted); }
.contact-other { display: grid; gap: 20px; }
.contact-item { padding: 24px 28px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; }
.contact-item .contact-label { margin-bottom: 10px; }
.contact-item > a { font-size: 17px; color: var(--accent); overflow-wrap: anywhere; }
.contact-item > a:hover { text-decoration: underline; }
.contact-item > p { font-size: 14px; color: var(--muted); }
.about-product { display: flex; justify-content: space-between; align-items: center; gap: 25px; border-top: 1px solid var(--line); padding-top: 30px; margin-top: 30px; }
.about-product p { font-size: 13px; color: var(--muted); max-width: 650px; }
.error-layout { display: grid; grid-template-columns: 1fr 1fr; min-height: 530px; align-items: center; gap: 70px; padding-block: 80px; }
.error-number { font: 600 clamp(100px, 14vw, 190px)/1 var(--font-sans); color: var(--accent); letter-spacing: -12px; position: relative; padding-bottom: 40px; border-bottom: 1px solid var(--line); }
.error-number::after { content: "ADX / 404"; position: absolute; bottom: -28px; left: 0; color: var(--muted); font: 10px/1.8 var(--font-mono); letter-spacing: 2px; }
.error-copy h1 { font-size: 35px; margin-bottom: 19px; }
.error-copy > p { font-size: 14px; color: var(--muted); }
@media (min-width: 1600px) { .hero { padding-block: 100px; } }
@media (max-width: 1050px) {
  .container { width: calc(100% - 64px); }
  .header-inner { gap: 24px; }
  .nav { gap: 23px; }
  .hero { gap: 30px; padding-block: 65px; }
  .hero-title { font-size: 44px; }
  .flow-figure { padding: 23px 18px 17px; }
  .flow-nodes { grid-template-columns: 1fr 20px 1.15fr 20px 1fr; }
  .flow-checks { font-size: 9px; gap: 3px; }
  .capability { padding: 24px; }
  .journey-band { padding: 35px; gap: 35px; }
  .product-group { grid-template-columns: 190px 1fr; gap: 30px; }
  .about-layout { gap: 40px; }
  .about-intro h1 { font-size: 30px; }
  .footer-bottom { flex-wrap: wrap; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 145px; }
  .container { width: calc(100% - 40px); }
  .header-inner { display: flex; flex-wrap: wrap; gap: 0; padding-top: 16px; min-height: auto; }
  .brand { gap: 9px; }
  .brand-name { font-size: 25px; }
  .brand-sub { font-size: 8px; margin-top: 6px; }
  .header-actions { margin-left: auto; }
  .control { height: 38px; }
  .nav { width: 100%; height: 50px; margin-top: 8px; justify-content: space-between; gap: 14px; order: 3; }
  .nav a { font-size: 12px; }
  .hero { grid-template-columns: 1fr; padding-block: 43px 34px; gap: 37px; }
  .eyebrow { font-size: 10px; letter-spacing: 1px; margin-bottom: 18px; }
  .hero-title { font-size: 42px; line-height: 1.45; margin-bottom: 17px; letter-spacing: -1.5px; }
  .hero-description { font-size: 14px; line-height: 1.95; }
  .button-row { margin-top: 25px; gap: 10px; }
  .button { padding: 11px 16px; gap: 13px; font-size: 12px; }
  .hero-platforms { margin-top: 22px; font-size: 9px; gap: 12px; }
  .hero-platforms .icon { width: 13px; height: 13px; }
  .flow-figure { padding: 22px 19px 16px; border-radius: 13px; }
  .figure-top { font-size: 8px; }
  .flow-nodes { padding-top: 34px; grid-template-columns: 1fr 22px 1.15fr 22px 1fr; }
  .flow-node { font-size: 10px; min-height: 83px; }
  .flow-node > .icon { width: 23px; height: 23px; padding: 11px; }
  .flow-node.core { min-height: 124px; padding-block: 17px 13px; }
  .flow-node.core > .icon { width: 30px; height: 30px; }
  .core small { font-size: 8px; }
  .flow-checks { margin-top: 24px; padding-block: 13px; }
  .flow-figure figcaption { font-size: 9px; }
  .pillars { grid-template-columns: 1fr; }
  .pillar { padding: 18px 0; gap: 18px; }
  .pillar + .pillar { border-left: 0; border-top: 1px solid var(--line); }
  .pillar strong { font-size: 15px; }
  .pillar p { font-size: 11px; }
  .section { padding-block: 45px; }
  .section-heading { display: block; margin-bottom: 25px; }
  .section-heading h2, .section-title { font-size: 27px; }
  .section-heading > p { margin-top: 15px; font-size: 12px; }
  .capability-grid { grid-template-columns: 1fr; gap: 12px; }
  .capability { padding: 25px; }
  .capability > .icon { width: 25px; height: 25px; margin-bottom: 18px; }
  .capability h3 { font-size: 17px; }
  .capability p { font-size: 12px; }
  .journey-band { grid-template-columns: 1fr; padding: 29px 25px; gap: 28px; }
  .journey-band h2 { font-size: 25px; }
  .journey-band p { font-size: 12px; }
  .journey-steps { gap: 16px; }
  .journey-step strong { font-size: 12px; }
  .journey-step p { font-size: 10px; }
  .bottom-cta { display: block; padding-block: 39px; }
  .bottom-cta h2 { font-size: 24px; }
  .bottom-cta p { font-size: 12px; }
  .bottom-cta > .button { margin-top: 22px; }
  .site-footer { padding-block: 27px 22px; }
  .footer-main { display: block; padding-bottom: 23px; }
  .footer-company { font-size: 12px; }
  .footer-tagline { font-size: 10px; }
  .footer-links { gap: 25px; margin-top: 21px; font-size: 11px; flex-wrap: wrap; }
  .footer-bottom { display: block; font-size: 9px; }
  .footer-meta { justify-content: flex-start; gap: 8px 18px; margin-top: 12px; }
  .page-intro { padding-block: 40px 29px; }
  .page-intro h1 { font-size: 34px; line-height: 1.45; margin-bottom: 16px; }
  .downloads-title > span { display: block; }
  .page-intro > p { font-size: 13px; }
  .page-intro .intro-note { font-size: 10px; }
  .anchor-nav { margin-bottom: 18px; padding-bottom: 22px; gap: 8px; }
  .anchor-nav a { padding: 5px 12px; font-size: 10px; }
  .product-group { grid-template-columns: 1fr; padding-block: 26px 30px; gap: 24px; }
  .group-heading h2 { font-size: 22px; margin-bottom: 8px; }
  .group-heading .number { margin-bottom: 4px; }
  .group-heading > p { font-size: 11px; }
  .module-grid { grid-template-columns: 1fr; gap: 24px; }
  .module h3 { font-size: 15px; }
  .module p { font-size: 12px; }
  .release-grid { grid-template-columns: 1fr; gap: 18px; }
  .release-main { padding: 25px; }
  .release-line { margin-bottom: 15px; font-size: 11px; }
  .release h2 { font-size: 34px; }
  .release h2 small { font-size: 17px; }
  .release p { font-size: 12px; }
  .release-bottom { padding: 12px 25px; font-size: 9px; }
  .release-id { font-size: 9px; }
  .download-meta { font-size: 10px; margin-top: 15px; gap: 8px 14px; }
  .download-meta .text-link { font-size: 10px; }
  .download-section { padding-top: 35px; }
  .download-section h2 { font-size: 23px; }
  .download-section > p { font-size: 12px; }
  .package-table, .package-table tbody, .package-table tr, .package-table td { display: block; }
  .package-table thead { display: none; }
  .package-table tr { border-top: 1px solid var(--line); padding-block: 17px; }
  .package-table tr:last-child { border-bottom: 1px solid var(--line); }
  .package-table td { padding: 3px 0; border: 0; font-size: 11px; }
  .package-table td:first-child { width: 100%; padding-bottom: 7px; }
  .package-name { font-size: 13px; }
  .package-table td:nth-child(2)::before, .package-table td:last-child::before { content: attr(data-caption-zh) "："; color: var(--muted); }
  :lang(en) .package-table td:nth-child(2)::before, :lang(en) .package-table td:last-child::before { content: attr(data-caption-en) ": "; }
  .verify-panel { grid-template-columns: 1fr; gap: 23px; margin-top: 28px; padding: 24px; }
  .verify-panel h2 { font-size: 21px; }
  .commands code { font-size: 10px; padding: 10px; }
  .history-row { display: grid; grid-template-columns: 28px 1fr; margin-block: 25px 42px; gap: 12px 15px; align-items: start; }
  .history-row > .icon { margin-top: 3px; }
  .history-row h2 { font-size: 16px; }
  .history-row p { font-size: 11px; }
  .history-row .text-link { grid-column: 2; margin-left: 0; font-size: 12px; }
  .about-layout { grid-template-columns: 1fr; gap: 30px; padding-block: 40px 35px; }
  .about-intro h1 { font-size: 29px; line-height: 1.55; }
  .legal-english { font-size: 12px; }
  .about-description { margin-top: 23px; padding-top: 20px; font-size: 13px; }
  .location-visual { min-height: 235px; padding: 23px; }
  .beijing-label { margin-top: 13px; font-size: 39px; }
  .city-pin { margin-top: 15px; }
  .contact-section { padding-block: 8px 43px; }
  .contact-section h2 { font-size: 24px; margin-bottom: 23px; }
  .contact-grid { grid-template-columns: 1fr; gap: 15px; }
  .contact-address { padding: 25px; }
  address { font-size: 15px; }
  .postal { font-size: 11px; margin-top: 18px; }
  .contact-other { gap: 15px; }
  .contact-item { padding: 23px 25px; }
  .contact-item > a { font-size: 16px; }
  .about-product { display: block; padding-top: 24px; margin-top: 26px; }
  .about-product p { font-size: 12px; margin-bottom: 17px; }
  .error-layout { grid-template-columns: 1fr; gap: 55px; min-height: auto; padding-block: 45px 60px; }
  .error-number { font-size: 135px; letter-spacing: -8px; padding-bottom: 25px; }
  .error-copy h1 { font-size: 29px; }
  .error-copy > p { font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }