:root {
  --bg: #FCFCFD;
  --panel: #FFFFFF;
  --panel-2: #F3EEF8;
  --panel-side: #FAFAFB;
  --border: #E5E3E8;
  --border-soft: #EFEEF1;
  --accent: #9562C6;
  --accent-dark: #6B3F99;
  --accent-grad: linear-gradient(90deg, var(--accent) 0%, var(--accent-dark) 100%);
  --accent-tint: #FAF7FC;
  --field-ink: #E2D5EF;
  --text: #17151A;
  --text-muted: #6A6670;
  --text-faint: #9C98A3;
  --chip-neutral: #F1F0F3;
  --chrome-dot: #DCDAE0;
  --btn-ink: #17151A;
  --btn-ink-hover: #2C2932;
  --btn-ink-label: #FFFFFF;
  --success: #2F8F5B;
  --success-ink: #236C45;
  --warn: #B7791F;
  --warn-ink: #805312;
  --error: #C2413A;
  --clear: transparent;
  --veil: rgba(23, 21, 26, 0.32);
  --shadow-window: 0 2px 2px -1px rgba(23, 21, 26, 0.07), 0 0 0 1px rgba(23, 21, 26, 0.02), 0 40px 80px -20px rgba(74, 40, 110, 0.20);
  --shadow-float: 0 1px 2px rgba(23, 21, 26, 0.07), 0 14px 28px -10px rgba(74, 40, 110, 0.22);
  --shadow-fab: 0 1px 2px rgba(23, 21, 26, 0.08), 0 10px 24px -10px rgba(23, 21, 26, 0.22);
  --font-display: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
  --weight-regular: 400;
  --weight-medium: 500;
  --text-xs: 11px;
  --text-sm: 12px;
  --text-ui: 13px;
  --text-nav: 14px;
  --text-body: 15px;
  --text-lede: 16px;
  --text-subtitle: 20px;
  --text-h3: 22px;
  --text-h2: 28px;
  --text-h1: clamp(34px, calc(3.2vw + 2px), 48px);
  --hero-leading: 1.08;
  --heading-leading: 1.2;
  --body-leading: 1.6;
  --tracking-heading: -0.02em;
  --tracking-hero: -0.025em;
  --tracking-label: 0.08em;
  --r-ctl: 4px;
  --r-card: 8px;
  --r-pill: 999px;
  --r-circle: 50%;
  --r-indicator: 2px 2px 0 0;
  --gutter: 32px;
  --wrap: 1120px;
  --reading: 760px;
  --header-wrap: 1280px;
  --header-h: 64px;
  --section-space: 72px;
  --motion-fast: 160ms;
  --motion-reveal: 500ms;
}
*, *::before, *::after { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; scroll-padding-top: 24px; }
html.nav-open { overflow: hidden; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--body-leading);
  font-weight: var(--weight-regular);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
[hidden] { display: none !important; }
img, svg { max-width: 100%; vertical-align: middle; }
img { height: auto; }
svg, .dot { flex-shrink: 0; }
button, input, select, textarea { font: inherit; }
button, select { cursor: pointer; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
p, ul, ol, dl, pre, blockquote { margin-top: 0; }
h1, h2, h3, h4 {
  margin-top: 0;
  font-family: var(--font-display);
  font-weight: var(--weight-regular);
  line-height: var(--heading-leading);
  letter-spacing: var(--tracking-heading);
  text-wrap: balance;
  overflow-wrap: break-word;
}
h1 { font-size: var(--text-h1); line-height: 1.12; }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }
strong { font-weight: var(--weight-medium); }
code, pre, kbd { font-family: var(--font-mono); }
code { overflow-wrap: anywhere; }
pre {
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--r-ctl);
  background: var(--panel-side);
  color: var(--text);
  font-size: var(--text-ui);
  line-height: 1.75;
  tab-size: 2;
}
pre code { overflow-wrap: normal; word-break: normal; white-space: pre; }
:focus-visible { outline: 2px solid var(--accent-dark); outline-offset: 3px; border-radius: var(--r-ctl); }
::selection { background: var(--panel-2); color: var(--text); }
.wrap {
  width: 100%;
  max-width: calc(var(--wrap) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.reading { max-width: calc(var(--reading) + var(--gutter) * 2); }
.section { padding-top: var(--section-space); padding-bottom: var(--section-space); }
.section-head { margin-bottom: 32px; }
.section-head p { color: var(--text-muted); max-width: 640px; }
.eyebrow { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.1em; color: var(--text-muted); }
.nowrap { white-space: nowrap; }
.muted { color: var(--text-muted); }
.accent { color: var(--accent-dark); }
.mono { font-family: var(--font-mono); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.grid { display: grid; gap: 24px; }
.grid-two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid > *, .hero-grid > *, .masthead-row > *, .footer-grid > * { min-width: 0; }
.prose { min-width: 0; line-height: 1.85; }
.prose h2 { margin-top: 56px; margin-bottom: 20px; }
.prose h3 { margin-top: 32px; margin-bottom: 16px; }
.prose p, .prose li { overflow-wrap: break-word; }
.prose a, .text-link { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 4px; }
.prose img { max-width: 100%; }
.prose > :first-child { margin-top: 0; }
.btn-primary, .btn-secondary, .btn-text {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid var(--clear);
  border-radius: var(--r-ctl);
  font-family: var(--font-mono);
  font-size: var(--text-ui);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  text-align: center;
}
.btn-primary { background: var(--btn-ink); color: var(--btn-ink-label); }
.btn-primary:hover, .btn-primary.is-hover { background: var(--btn-ink-hover); color: var(--btn-ink-label); }
.btn-primary:active, .btn-primary.is-active { transform: translateY(1px); }
.btn-secondary { background: var(--panel); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent-dark); }
.btn-text { padding-inline: 0; background: var(--clear); color: var(--text); }
.btn-text span { padding-bottom: 5px; border-bottom: 1px solid var(--text); }
.btn-text:hover, .btn-text:hover span { color: var(--accent-dark); border-bottom-color: var(--accent-dark); }
.btn-primary:disabled, .btn-secondary:disabled { background: var(--chip-neutral); color: var(--text-muted); cursor: not-allowed; transform: none; }
.btn-primary.is-focus { outline: 2px solid var(--accent-dark); outline-offset: 3px; }
.btn-primary svg, .btn-secondary svg { width: 14px; height: 14px; }
.ico-stroke { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.chev { fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.card, .panel {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  background: var(--panel);
  color: var(--text);
  min-width: 0;
}
.panel-raised { box-shadow: var(--shadow-float); }
.card p:last-child { margin-bottom: 0; }
.card h3 { margin-bottom: 16px; }
.decorated, .hero { position: relative; overflow-x: clip; }
.reveal { opacity: 1; transform: none; }
.reveal-pending { opacity: 0; transform: translateY(14px); }
.reveal.shown { opacity: 1; transform: none; transition: opacity var(--motion-reveal) ease, transform var(--motion-reveal) ease; }

/* 页头独立使用 1280px 内容版心。 */
.masthead {
  position: relative;
  z-index: 30;
  height: var(--header-h);
  border-bottom: 1px solid var(--border-soft);
  background: var(--bg);
  color: var(--text);
}
.masthead-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 32px;
  height: var(--header-h);
  width: 100%;
  max-width: min(100%, calc(var(--header-wrap) + var(--gutter) * 2));
  padding-inline: var(--gutter);
  margin-inline: auto;
}
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark { display: block; width: 28px; height: 28px; flex-shrink: 0; }
.brand-name { font-family: var(--font-display); font-size: var(--text-lede); font-weight: var(--weight-medium); letter-spacing: -0.01em; }
.tabs { display: flex; align-items: center; height: 100%; min-width: 0; margin-left: auto; }
.tabs-list {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  height: 100%;
  gap: 26px;
}
.tabs-list li { display: flex; align-items: stretch; height: 100%; }
.tab-link { position: relative; display: inline-flex; align-items: center; height: 100%; font-size: var(--text-nav); color: var(--text-muted); white-space: nowrap; }
.tab-link:hover, .tab-link[aria-current="page"] { color: var(--text); }
.tab-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: -1px;
  height: 2px;
  border-radius: var(--r-indicator);
  background: var(--accent-grad);
  color: var(--text);
}
.header-tools { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.language-picker { position: relative; }
.lang {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 0 0 0 20px;
  border: 0;
  background: var(--clear);
  color: var(--text-muted);
  font-size: var(--text-ui);
  white-space: nowrap;
}
.lang::before { content: ""; position: absolute; left: 0; width: 1px; height: 30px; background: var(--border); color: var(--text); }
.lang svg { width: 12px; height: 12px; }
.lang-short { display: none; }
.language-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 180px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow-float);
}
.language-menu a { display: flex; align-items: center; min-height: 44px; padding: 8px 12px; border-radius: var(--r-ctl); }
.language-menu a:hover, .language-menu a[aria-current="true"] { background: var(--panel-2); color: var(--accent-dark); }
.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: var(--r-ctl);
  background: var(--panel);
  color: var(--text);
}
.menu-toggle svg { width: 20px; height: 20px; }
.mobile-drawer { display: none; }
.nav-veil {
  position: fixed;
  inset: var(--header-h) 0 0;
  z-index: 20;
  border: 0;
  background: var(--veil);
  color: var(--text);
}
.static-mobile { display: none; }

/* 页脚 */
.site-footer { border-top: 1px solid var(--border); padding-top: 56px; padding-bottom: 88px; background: var(--bg); color: var(--text); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 0.8fr 1fr; gap: 56px; }
.footer-intro { max-width: 330px; margin-top: 20px; color: var(--text-muted); font-size: var(--text-nav); }
.footer-title { margin-bottom: 18px; font-size: var(--text-nav); font-weight: var(--weight-medium); }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; font-size: var(--text-ui); color: var(--text-muted); }
.footer-links a:hover { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 3px; }
.footer-languages { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 36px; font-size: var(--text-ui); color: var(--text-muted); }
.footer-languages a { display: inline-flex; align-items: center; min-height: 44px; }
.footer-languages [aria-current="true"] { color: var(--accent-dark); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--border); color: var(--text-muted); font-size: var(--text-sm); }
.footer-legal { display: flex; flex-wrap: wrap; gap: 24px; }

/* 已确认首屏：上半文案，下半静态路由批注窗。 */
.hero-top { padding-top: 52px; padding-bottom: 36px; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  grid-template-areas: "badge badge" "title title" "lede facts" "cta facts" "plat facts";
  column-gap: 48px;
}
.badge {
  grid-area: badge;
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 28px;
  max-width: 100%;
  padding: 2px 12px 2px 4px;
  margin-bottom: 22px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--panel);
  color: var(--text-muted);
  font-size: var(--text-ui);
}
.badge-key { display: inline-flex; align-items: center; flex-shrink: 0; min-height: 20px; padding: 0 9px; border-radius: var(--r-pill); background: var(--panel-2); color: var(--accent-dark); font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.04em; }
.badge-arrow { color: var(--accent-dark); font-family: var(--font-mono); flex-shrink: 0; }
.hero-title { grid-area: title; margin: 0 0 18px; font-size: var(--text-h1); line-height: var(--hero-leading); letter-spacing: var(--tracking-hero); }
.hero-title > span { display: block; }
.hero-title .title-sub { color: var(--text-muted); }
.lede { grid-area: lede; max-width: 600px; margin: 0 0 28px; font-size: var(--text-lede); line-height: 1.65; color: var(--text-muted); }
.lede strong { color: var(--text); }
.cta-row { grid-area: cta; display: flex; align-items: center; flex-wrap: wrap; gap: 28px; margin-bottom: 22px; }
.platforms { grid-area: plat; display: flex; align-items: center; flex-wrap: wrap; gap: 22px; margin: 0; padding: 0; list-style: none; }
.platforms-label { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: var(--tracking-label); color: var(--text-muted); }
.plat-link { display: inline-flex; align-items: center; gap: 7px; font-size: var(--text-ui); color: var(--text-muted); }
.plat-link svg { width: 14px; height: 14px; }
.plat-link:hover { color: var(--text); }
.facts { grid-area: facts; align-self: end; margin: 0; padding: 0; font-family: var(--font-mono); font-size: var(--text-sm); }
.fact { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding-block: 8px; border-top: 1px solid var(--border); }
.fact:last-child { border-bottom: 1px solid var(--border); }
.fact dt { color: var(--text-muted); letter-spacing: 0.04em; }
.fact dd { margin: 0; color: var(--text); text-align: right; }
.band { position: relative; height: 395px; overflow: hidden; background: var(--panel-2); color: var(--text); }
.field { position: absolute; top: 0; margin: 0; padding: 0; border: 0; background: var(--clear); color: var(--field-ink); font-family: var(--font-mono); font-size: var(--text-sm); line-height: 22px; white-space: pre; pointer-events: none; user-select: none; }
.field-l { left: 0; width: 330px; padding-left: 18px; overflow: hidden; mask-image: linear-gradient(90deg, var(--text) 0%, var(--text) 42%, var(--clear) 100%); }
.field-r { right: 0; width: 330px; padding-right: 18px; overflow: hidden; text-align: right; mask-image: linear-gradient(270deg, var(--text) 0%, var(--text) 42%, var(--clear) 100%); }
.field-top { left: 50%; top: 6px; transform: translateX(-50%); width: 820px; line-height: 16px; text-align: center; overflow: hidden; }
.stage { position: relative; z-index: 1; width: min(var(--wrap), calc(100% - var(--gutter) * 2)); margin-inline: auto; padding-top: 44px; }
.float-tag { position: absolute; top: 18px; right: -36px; z-index: 3; padding: 9px 14px 10px; border: 1px solid var(--border); border-radius: var(--r-card); background: var(--panel); color: var(--text); box-shadow: var(--shadow-float); font-family: var(--font-mono); font-size: var(--text-sm); line-height: 1.5; }
.float-tag-key { display: flex; align-items: center; gap: 8px; }
.float-tag-key::before { content: ""; width: 6px; height: 6px; flex-shrink: 0; border-radius: var(--r-circle); background: var(--accent); color: var(--text); }
.float-tag-val { padding-left: 14px; color: var(--text-muted); }
.win { height: 440px; display: grid; grid-template-rows: 38px 1fr; overflow: hidden; border: 1px solid var(--border); border-radius: var(--r-card); background: var(--panel); color: var(--text); box-shadow: var(--shadow-window); }
.win-bar { position: relative; display: flex; align-items: center; gap: 7px; padding-inline: 14px; border-bottom: 1px solid var(--border-soft); background: var(--panel); color: var(--text); }
.win-dot { width: 10px; height: 10px; flex-shrink: 0; border-radius: var(--r-circle); background: var(--chrome-dot); color: var(--text); }
.win-title { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); font-size: var(--text-sm); color: var(--text-muted); letter-spacing: 0.02em; white-space: nowrap; }
.win-body { display: grid; grid-template-columns: 212px minmax(0, 1fr) 318px; min-height: 0; }
.win-body > * { min-width: 0; }
.win-side { padding: 16px 10px; border-right: 1px solid var(--border-soft); background: var(--panel-side); color: var(--text-muted); }
.side-label { padding: 0 12px 10px; font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: var(--tracking-label); color: var(--text-muted); }
.side-list { margin: 0; padding: 0; list-style: none; }
.side-item { display: flex; align-items: center; height: 34px; padding-inline: 12px; border-radius: var(--r-ctl); font-size: var(--text-ui); color: var(--text-muted); }
.side-item.is-current { background: var(--panel-2); color: var(--accent-dark); }
.win-main { padding: 14px 20px 0; min-width: 0; }
.toolbar { display: flex; align-items: center; gap: 22px; padding-bottom: 14px; margin-bottom: 8px; border-bottom: 1px solid var(--border-soft); }
.ctl { display: inline-flex; align-items: center; gap: 10px; font-size: var(--text-ui); color: var(--text-muted); white-space: nowrap; }
.ctl-box { display: inline-flex; align-items: center; gap: 18px; height: 30px; padding-inline: 10px; border: 1px solid var(--border); border-radius: var(--r-ctl); background: var(--panel); color: var(--text); font-size: var(--text-sm); }
.ctl-box svg { width: 10px; height: 10px; color: var(--text-muted); }
.rt { font-size: var(--text-sm); }
.rt-row { display: grid; grid-template-columns: 1.3fr 0.9fr 1fr; align-items: center; height: 38px; padding-inline: 12px; border: 1px solid var(--clear); border-radius: var(--r-ctl); box-shadow: inset 0 -1px 0 var(--border-soft); }
.rt-head { height: 32px; font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.06em; color: var(--text-muted); }
.rt-row.is-selected { border-color: var(--accent); background: var(--accent-tint); color: var(--text); box-shadow: none; }
.rt-match { font-family: var(--font-mono); color: var(--text); white-space: nowrap; }
.rt-out { display: flex; align-items: center; gap: 10px; }
.rt-arrow { font-family: var(--font-mono); color: var(--text-muted); }
.rt-note { color: var(--text-muted); white-space: nowrap; }
.chip { display: inline-flex; align-items: center; min-height: 20px; padding-inline: 8px; border-radius: var(--r-pill); font-family: var(--font-mono); font-size: var(--text-xs); max-width: 100%; overflow-wrap: anywhere; }
.chip-proxy { background: var(--panel-2); color: var(--accent-dark); }
.chip-plain { background: var(--chip-neutral); color: var(--text-muted); }
.win-note { padding: 16px 20px; border-left: 1px solid var(--border-soft); }
.note-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 12px; gap: 8px; }
.note-title { font-size: var(--text-nav); font-weight: var(--weight-medium); }
.note-path { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-muted); }
.note-code { margin: 0 0 14px; padding: 10px 14px; border: 1px solid var(--border-soft); border-radius: var(--r-ctl); background: var(--bg); color: var(--text); font-size: var(--text-sm); line-height: 1.75; }
.tk-k { color: var(--accent-dark); }
.tk-p { color: var(--text-muted); }
.note-text { margin: 0 0 8px; font-size: var(--text-ui); line-height: 1.65; color: var(--text-muted); }
.note-text code { font-size: var(--text-xs); color: var(--text); }
.after { border-top: 1px solid var(--border); padding-top: 72px; padding-bottom: 96px; }
.after-label { margin: 0 0 14px; font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.1em; color: var(--text-muted); }
.after-title { margin: 0; font-size: var(--text-h2); }

@media (max-width: 1100px) {
  .masthead .tabs { display: none; }
  .header-tools { margin-left: auto; }
  .menu-toggle { display: inline-flex; }
  .mobile-drawer:not([hidden]) {
    display: block;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 16px var(--gutter) 24px;
    border-bottom: 1px solid var(--border);
    background: var(--panel);
    color: var(--text);
    box-shadow: var(--shadow-float);
  }
  .mobile-drawer ul { margin: 0; padding: 0; list-style: none; }
  .mobile-drawer a { display: flex; align-items: center; width: 100%; min-height: 44px; padding: 10px 12px; border-radius: var(--r-ctl); }
  .mobile-drawer a[aria-current] { background: var(--panel-2); color: var(--accent-dark); }
  .drawer-languages { border-top: 1px solid var(--border); margin-top: 16px; padding-top: 16px; }
  .static-mobile { display: block; margin-left: auto; }
  .static-mobile summary { list-style: none; cursor: pointer; padding: 10px 12px; min-height: 44px; border: 1px solid var(--border); border-radius: var(--r-ctl); }
  .static-mobile .mobile-drawer { display: block; }
  .static-mobile:not([open]) .mobile-drawer { display: none; }
}
@media (max-width: 1240px) { .float-tag { right: 12px; } }
@media (max-width: 1100px) { .win-body { grid-template-columns: 180px minmax(0, 1fr) 280px; } }
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); grid-template-areas: "badge" "title" "lede" "cta" "plat" "facts"; }
  .facts { margin-top: 28px; max-width: 420px; }
  .win-body { grid-template-columns: minmax(0, 1fr) 280px; }
  .win-side { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  :root { --text-h1: clamp(24px, 4vw, 30px); --section-space: 48px; --hero-leading: 1.16; --tracking-hero: -0.02em; }
  .grid-three { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 680px) {
  :root { --gutter: 16px; }
  .hero-top { padding-top: 32px; padding-bottom: 28px; }
  .badge { font-size: var(--text-sm); align-items: flex-start; }
  .lede { font-size: var(--text-body); }
  .cta-row { gap: 20px; }
  .platforms { gap: 14px 18px; }
  .platforms-label { width: 100%; }
  .band { height: auto; padding-bottom: 0; }
  .field-l, .field-r { width: 140px; }
  .field-top { display: none; }
  .stage { padding-top: 40px; }
  .float-tag { top: 8px; right: 8px; font-size: var(--text-xs); }
  .win { height: auto; margin-bottom: -8px; border-bottom-left-radius: 0; border-bottom-right-radius: 0; }
  .win-body { grid-template-columns: minmax(0, 1fr); }
  .win-main { padding: 12px 12px 8px; overflow-x: auto; }
  .toolbar { flex-wrap: wrap; gap: 10px 16px; }
  .rt { min-width: 270px; }
  .rt-row { grid-template-columns: minmax(170px, 1.4fr) minmax(82px, 1fr); padding-inline: 8px; }
  .rt-note { display: none; }
  .win-note { border-left: 0; border-top: 1px solid var(--border-soft); padding: 14px 14px 22px; }
  .after-title { font-size: var(--text-h3); }
}
@media (max-width: 640px) {
  .tilt, [data-tilt] { transform: none !important; }
  .grid-two { grid-template-columns: minmax(0, 1fr); }
  .card, .panel { padding: 20px; }
  .masthead-row { gap: 12px; }
  .brand-name { font-size: var(--text-nav); }
  .lang-full { display: none; }
  .lang-short { display: inline; }
  .lang { padding-left: 12px; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-brand { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal, .reveal-pending { opacity: 1; transform: none; }
}