.hero {
  position: relative;
  margin: 8px 24px 0;
  height: clamp(600px, calc(100vh - 220px), 760px);
  border-radius: var(--r-hero);
  background: var(--c-block);
  color: var(--c-on-dark);
  overflow: hidden;
  isolation: isolate;
  box-shadow: inset 0 0 0 1px var(--c-on-dark-06);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 46% 58% at 92% -6%, var(--c-accent-glow), var(--c-clear) 70%);
  z-index: -1;
  pointer-events: none;
}
.hero__orbit { position: absolute; width: 1040px; max-width: none; height: 1040px; right: -300px; top: 50%; transform: translateY(-50%); z-index: -1; pointer-events: none; }
.hero__orbit circle { fill: none; stroke: var(--c-on-dark-10); stroke-width: 1; vector-effect: non-scaling-stroke; }
.hero__orbit .hero__orbit-dash { stroke: var(--c-on-dark-16); stroke-dasharray: 2 9; }
.hero__orbit .hero__orbit-faint { stroke: var(--c-on-dark-06); }
.hero__inner {
  height: 100%;
  width: calc(100% - var(--hero-pad) * 2);
  max-width: var(--wrap);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 1fr);
  align-items: center;
  gap: 48px;
}
.chips { list-style: none; margin: 0 0 28px; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-flex; align-items: center; min-height: 28px; padding: 2px 12px; border: 1px solid var(--c-on-dark-16); border-radius: var(--r-pill); font-family: var(--f-mono); font-size: var(--size-label); letter-spacing: .02em; color: var(--c-on-dark-68); }
.chip--lead { gap: 8px; color: var(--c-on-dark); border-color: var(--c-on-dark-28); }
.chip__dot { width: 7px; height: 7px; border-radius: var(--r-circle); background: var(--c-accent); box-shadow: 0 0 0 3px var(--c-accent-glow); flex-shrink: 0; }
.hero__title { margin: 0; font-size: clamp(30px, 3.4vw, 48px); line-height: 1.16; letter-spacing: -.03em; }
.hero__line { display: block; }
.hero__key { font-style: normal; color: var(--c-accent); }
.hero__lead { margin: 22px 0 0; max-width: 30em; font-size: 17px; line-height: 1.75; color: var(--c-on-dark-68); }
.hero__lead strong { color: var(--c-on-dark); font-weight: var(--weight-semibold); }
.platforms { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--c-on-dark-10); display: flex; align-items: center; gap: 28px; max-width: 520px; }
.platforms__label { font-family: var(--f-mono); font-size: var(--size-label); letter-spacing: .04em; color: var(--c-on-dark-68); white-space: nowrap; }
.platforms__list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 24px; }
.plat { display: inline-flex; align-items: center; gap: 8px; font-size: var(--size-small); font-weight: var(--weight-medium); color: var(--c-on-dark-68); text-decoration: none; transition: color var(--ease); }
.plat:hover { color: var(--c-on-dark); }
.plat svg { width: 16px; height: 16px; flex-shrink: 0; }
.stage { position: relative; margin: 0; height: 560px; min-width: 0; }
.card { position: absolute; width: 340px; padding: 16px 18px 18px; background: var(--c-bg); color: var(--c-text); border: 1px solid var(--c-border); border-radius: var(--r-card); box-shadow: var(--shadow-float); }
.card--sub { top: 0; left: 4%; transform: rotate(-2deg); z-index: 1; }
.card--proxy { top: 178px; right: 0; transform: rotate(1deg); z-index: 3; }
.card--core { top: 368px; left: 12%; transform: rotate(-1deg); z-index: 2; }
.card__bar { display: flex; align-items: center; gap: 8px; padding-bottom: 12px; margin-bottom: 14px; border-bottom: 1px solid var(--c-border); }
.card__app { width: 22px; height: 22px; border-radius: var(--r-small); background: var(--c-block); color: var(--c-on-dark); display: grid; place-items: center; flex-shrink: 0; }
.card__app svg { width: 14px; height: 14px; }
.card__app-ring { fill: none; stroke: var(--c-accent); stroke-width: 2; }
.card__app-core { fill: var(--c-on-dark); }
.card__app-name { font-family: var(--f-mono); font-size: var(--size-label); color: var(--c-muted); }
.card__sep { color: var(--c-control-line); font-size: var(--size-label); }
.card__title { font-size: var(--size-small); font-weight: var(--weight-bold); letter-spacing: -.01em; }
.card__dots { margin-left: auto; display: flex; gap: 5px; }
.card__dots i { width: 7px; height: 7px; border-radius: var(--r-circle); background: var(--c-border); flex-shrink: 0; }
.card__meta { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; gap: 8px; }
.tag { display: inline-flex; align-items: center; gap: 7px; min-height: 24px; padding: 2px 10px; border-radius: var(--r-pill); background: var(--c-panel); color: var(--c-text); font-size: var(--size-label); font-weight: var(--weight-semibold); max-width: 100%; overflow-wrap: anywhere; }
.tag__dot { width: 7px; height: 7px; border-radius: var(--r-circle); background: var(--c-accent); box-shadow: 0 0 0 2px var(--c-accent-dark); flex-shrink: 0; }
.card__path { font-family: var(--f-mono); font-size: 11px; color: var(--c-muted); }
.menu { list-style: none; margin: 0; padding: 0; }
.menu__row { display: flex; align-items: center; gap: 10px; min-height: 34px; padding: 6px 10px; border-radius: var(--r-row); font-size: 13.5px; color: var(--c-muted); }
.menu__row svg { width: 15px; height: 15px; flex-shrink: 0; color: var(--c-control-line); }
.menu__row--on { background: var(--c-panel); color: var(--c-text); font-weight: var(--weight-semibold); box-shadow: inset 3px 0 0 var(--c-accent); }
.menu__row--on svg { color: var(--c-accent-dark); }
.groups { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--c-border); display: grid; gap: 9px; }
.group { display: flex; align-items: center; gap: 10px; padding: 0 10px; }
.group__dot { width: 7px; height: 7px; border-radius: var(--r-circle); background: var(--c-skeleton); flex-shrink: 0; }
.group__dot--on { background: var(--c-accent); box-shadow: 0 0 0 2px var(--c-accent-dark); }
.group__bar { height: 8px; border-radius: var(--r-pill); background: var(--c-skeleton); }
.group__bar--a { width: 58%; }
.group__bar--b { width: 40%; }
.radios { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.radio { display: flex; align-items: center; gap: 12px; min-height: 38px; padding: 8px 12px; border-radius: var(--r-row); font-size: var(--size-small); color: var(--c-muted); }
.radio__mark { width: 16px; height: 16px; border-radius: var(--r-circle); border: 1.5px solid var(--c-control-line); flex-shrink: 0; display: grid; place-items: center; }
.radio--on { background: var(--c-panel); color: var(--c-text); font-weight: var(--weight-semibold); }
.radio--on .radio__mark { background: var(--c-accent); border-color: var(--c-accent-dark); }
.radio--on .radio__mark::after { content: ""; width: 6px; height: 6px; border-radius: var(--r-circle); background: var(--c-text); }
.card__note { margin: 12px 2px 0; font-size: var(--size-label); line-height: 1.55; color: var(--c-muted); }
.setting { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 8px 2px; }
.setting + .setting { border-top: 1px solid var(--c-border); padding-top: 14px; margin-top: 6px; }
.setting__name { font-size: var(--size-small); font-weight: var(--weight-semibold); }
.setting__desc { display: block; margin-top: 2px; font-size: var(--size-label); font-weight: var(--weight-normal); color: var(--c-muted); }
.switch { position: relative; width: 42px; height: 24px; border-radius: var(--r-pill); background: var(--c-accent); box-shadow: inset 0 0 0 1px var(--c-accent-dark); flex-shrink: 0; }
.switch::after { content: ""; position: absolute; top: 3px; right: 3px; width: 18px; height: 18px; border-radius: var(--r-circle); background: var(--c-bg); box-shadow: var(--shadow-knob); }
.seg { display: inline-flex; padding: 3px; border-radius: var(--r-pill); background: var(--c-panel); color: var(--c-text); box-shadow: inset 0 0 0 1px var(--c-border); flex-shrink: 0; }
.seg__opt { padding: 4px 12px; border-radius: var(--r-pill); font-family: var(--f-mono); font-size: var(--size-label); color: var(--c-muted); }
.seg__opt--on { background: var(--c-text); color: var(--c-on-dark); font-weight: var(--weight-semibold); box-shadow: var(--shadow-seg); }
.ticker { margin: 14px 24px 0; height: 26px; padding: 0 var(--hero-pad) 8px; display: flex; align-items: flex-start; justify-content: space-between; font-family: var(--f-mono); font-size: 11px; line-height: 14px; letter-spacing: .04em; color: var(--c-muted); background-image: repeating-linear-gradient(90deg, var(--c-border) 0 1px, var(--c-clear) 1px 12px); background-size: 100% 6px; background-position: left bottom; background-repeat: no-repeat; user-select: none; }
.ticker span { white-space: nowrap; }
.ticker b { font-weight: var(--weight-normal); color: var(--c-control-line); padding: 0 4px; }
.flow { position: relative; padding-top: 28px; padding-bottom: 80px; text-align: center; }
.flow::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 1px; background: var(--c-border); z-index: -1; }
.flow__node { position: relative; width: 44px; height: 44px; margin: 0 auto 28px; border-radius: var(--r-circle); background: var(--c-accent); color: var(--c-text); display: grid; place-items: center; box-shadow: var(--ring-white); }
.flow__node svg { width: 20px; height: 20px; }
.flow__title { position: relative; display: inline-block; margin: 12px 0 40px; padding: 0 16px; background: var(--c-bg); color: var(--c-text); font-size: 32px; }
.flow__title em { font-style: normal; color: var(--c-accent-dark); }
.flow-step { position: relative; padding-top: 40px; padding-bottom: 40px; scroll-margin-top: 24px; }
.flow-panel { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: center; gap: 48px; text-align: left; padding: 48px; background: var(--c-panel); color: var(--c-text); border: 1px solid var(--c-border); border-radius: var(--r-panel); }
.flow-step:nth-of-type(even) .flow-panel__copy { order: 2; }
.flow-step.is-current .flow__node { outline: 2px solid var(--c-accent-dark); outline-offset: 5px; }
.flow-panel .surface-card { max-width: 360px; }
.tabs { min-width: 0; }
.tab-list, [role="tablist"].tab-list { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; padding: 6px; margin: 0 0 32px; width: fit-content; max-width: 100%; border-radius: var(--r-pill); background: var(--c-panel); color: var(--c-text); border: 1px solid var(--c-border); }
.tab-list [role="tab"] { min-height: 44px; padding: 10px 20px; border: 0; border-radius: var(--r-pill); background: var(--c-clear); color: var(--c-muted); font-size: var(--size-small); font-weight: var(--weight-semibold); }
.tab-list [role="tab"]:hover { color: var(--c-text); }
.tab-list [role="tab"][aria-selected="true"] { background: var(--c-accent); color: var(--c-text); box-shadow: var(--shadow-seg); }
.tab-panel { min-width: 0; scroll-margin-top: 24px; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; padding: 16px; margin-bottom: 32px; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-bg); color: var(--c-text); }
.toc a { display: block; padding: 8px 12px; border-radius: var(--r-pill); color: var(--c-muted); text-decoration: none; font-size: var(--size-small); }
.toc a:hover, .toc a[aria-current="location"] { background: var(--c-panel); color: var(--c-text); }
.toc--sticky { position: sticky; top: 16px; z-index: 10; }
.faq-item { background: var(--c-bg); color: var(--c-text); border-bottom: 1px solid var(--c-border); }
.faq-item summary { cursor: pointer; padding: 22px 40px 22px 0; position: relative; font-weight: var(--weight-semibold); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 8px; top: 22px; color: var(--c-accent-dark); }
.faq-item[open] summary::after { content: "−"; }
.faq-item__body { padding-bottom: 24px; color: var(--c-muted); }
.faq-item__body p:last-child { margin-bottom: 0; }
.term-card, .article-card, .client-card { padding: 28px; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-bg); color: var(--c-text); box-shadow: var(--shadow-card); min-width: 0; }
.term-card h3 { margin: 16px 0 12px; }
.term-card p, .article-card p, .client-card p { color: var(--c-muted); }
.article-card { display: flex; flex-direction: column; gap: 16px; }
.article-card h3 { margin: 0; font-size: var(--size-h3); }
.article-card h3 a { text-decoration: none; }
.article-card h3 a:hover { text-decoration: underline; }
.article-card time { color: var(--c-muted); font-family: var(--f-mono); font-size: var(--size-label); }
.article-card p { margin: 0; }
.article-card__link { margin-top: auto; color: var(--c-accent-dark); font-size: var(--size-small); }
.client-card__head { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.client-card__head h3 { margin: 0; }
.client-card__icon { width: 56px; height: 56px; flex-shrink: 0; }
.client-card__version { font-family: var(--f-mono); font-size: var(--size-small); color: var(--c-muted); }
.client-card__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.badge { display: inline-flex; align-items: center; gap: 7px; max-width: 100%; padding: 4px 10px; border-radius: var(--r-pill); font-size: var(--size-label); font-weight: var(--weight-bold); background: var(--c-panel); color: var(--c-text); overflow-wrap: anywhere; }
.badge--primary { background: var(--c-accent); color: var(--c-text); }
.badge--recommended { background: var(--c-panel); color: var(--c-accent-dark); border: 1px solid var(--c-border); }
.badge--retired { background: var(--c-panel); color: var(--c-muted); border: 1px dashed var(--c-control-line); }
.callout { margin: 28px 0; padding: 24px 28px; border-left: 4px solid var(--c-accent); border-radius: var(--r-card); background: var(--c-panel); color: var(--c-text); }
.callout p:last-child { margin-bottom: 0; }
.callout--warning { border-left-color: var(--c-warn); }
.callout--error { border-left-color: var(--c-error); }
.callout--success { border-left-color: var(--c-success); }
.table-scroll { max-width: 100%; min-width: 0; overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--c-border); border-radius: var(--r-card); }
.data-table { border-collapse: collapse; width: 100%; text-align: left; background: var(--c-bg); color: var(--c-text); }
.data-table th, .data-table td, .prose table th, .prose table td, .article-body table th, .article-body table td {
  min-width: 7em;
  padding: 16px 20px;
  border-bottom: 1px solid var(--c-border);
  overflow-wrap: normal;
  word-break: normal;
  vertical-align: top;
}
.data-table th, .prose table th, .article-body table th { background: var(--c-panel); color: var(--c-text); font-weight: var(--weight-semibold); }
.prose table, .article-body table {
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
  min-width: 0;
  border-collapse: collapse;
  background: var(--c-bg);
  color: var(--c-text);
}
.article-download { padding: 32px; margin-top: 48px; background: var(--c-panel); color: var(--c-text); border: 1px solid var(--c-border); border-radius: var(--r-panel); }
.article-download h2 { font-size: var(--size-h3); margin-top: 0; }
.article-download p { color: var(--c-muted); }
.dl-fab { position: fixed; right: 24px; bottom: 24px; z-index: 50; display: inline-flex; align-items: center; gap: 10px; min-height: 48px; padding: 10px 22px 10px 18px; border-radius: var(--r-pill); background: var(--c-accent); color: var(--c-text); font-size: 15px; font-weight: var(--weight-bold); text-decoration: none; box-shadow: var(--shadow-fab); transition: transform var(--ease); }
.dl-fab svg { width: 18px; height: 18px; flex-shrink: 0; }
.dl-fab:hover { transform: translateY(-1px); }
.swatch-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.swatch { min-width: 0; border: 1px solid var(--c-border); border-radius: var(--r-card); overflow: hidden; background: var(--c-bg); color: var(--c-text); }
.swatch__paint { height: 72px; }
.swatch code { display: block; padding: 12px; font-size: var(--size-label); }
.paint-bg { background: var(--c-bg); color: var(--c-text); }
.paint-panel { background: var(--c-panel); color: var(--c-text); }
.paint-block { background: var(--c-block); color: var(--c-on-dark); }
.paint-border { background: var(--c-border); color: var(--c-text); }
.paint-accent { background: var(--c-accent); color: var(--c-text); }
.paint-accent-dark { background: var(--c-accent-dark); color: var(--c-on-dark); }
.paint-text { background: var(--c-text); color: var(--c-on-dark); }
.paint-muted { background: var(--c-muted); color: var(--c-on-dark); }
.paint-success { background: var(--c-success); color: var(--c-text); }
.paint-warn { background: var(--c-warn); color: var(--c-text); }
.paint-error { background: var(--c-error); color: var(--c-text); }
.paint-skeleton { background: var(--c-skeleton); color: var(--c-text); }
.paint-control { background: var(--c-control-line); color: var(--c-text); }
.paint-clear { background: var(--c-clear); color: var(--c-text); }
.paint-glow { background: var(--c-accent-glow); color: var(--c-text); }
.paint-tint { background: var(--c-accent-tint); color: var(--c-text); }
.paint-veil { background: var(--c-veil); color: var(--c-text); }
.paint-white { background: var(--c-on-dark); color: var(--c-text); }
.paint-white80 { background: var(--c-on-dark-80); color: var(--c-text); }
.paint-white68 { background: var(--c-on-dark-68); color: var(--c-text); }
.paint-white52 { background: var(--c-on-dark-52); color: var(--c-text); }
.paint-white28 { background: var(--c-on-dark-28); color: var(--c-text); }
.paint-white16 { background: var(--c-on-dark-16); color: var(--c-text); }
.paint-white10 { background: var(--c-on-dark-10); color: var(--c-text); }
.paint-white06 { background: var(--c-on-dark-06); color: var(--c-text); }
.swatch--dark .swatch__paint { box-shadow: inset 0 0 0 100px var(--c-block); }
.swatch--dark .swatch__paint::after { content: ""; display: block; height: 100%; background: inherit; }
@media (max-width: 1180px) {
  .card { width: 316px; }
}
@media (max-width: 1024px) {
  .hero { height: auto; }
  .hero__inner { grid-template-columns: minmax(0, 1fr); padding-top: 64px; padding-bottom: 56px; gap: 40px; }
  .stage { width: min(560px, 100%); margin: 0 auto; height: 540px; }
  .ticker span:nth-child(n+5) { display: none; }
}
@media (max-width: 768px) {
  .hero__title { font-size: clamp(24px, 4vw, 30px); letter-spacing: -.02em; }
  .flow-panel { grid-template-columns: minmax(0, 1fr); padding: 28px; gap: 24px; }
  .flow-step:nth-of-type(even) .flow-panel__copy { order: initial; }
  .swatch-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .hero { margin-inline: 12px; border-radius: var(--r-panel); }
  .hero__inner { padding-top: 40px; }
  .hero__lead { font-size: 15px; }
  .hero__line { white-space: normal; }
  .hero .actions { margin-top: 24px; gap: 10px; }
  .hero .btn { padding-inline: 18px; font-size: var(--size-small); }
  .platforms { flex-direction: column; align-items: flex-start; gap: 14px; margin-top: 28px; }
  .platforms__list { column-gap: 18px; row-gap: 12px; }
  .chips { gap: 6px; margin-bottom: 22px; }
  .chip { padding-inline: 9px; }
  .stage { height: auto; display: grid; gap: 16px; }
  .card { position: relative; inset: auto; width: 100%; transform: none; padding-inline: 14px; }
  .card__bar { flex-wrap: wrap; }
  .setting { gap: 10px; }
  .seg__opt { padding-inline: 9px; }
  .ticker { display: none; }
  .flow__title { font-size: 26px; }
  .flow-panel { padding: 22px; }
  .tab-list { border-radius: var(--r-card); gap: 4px; }
  .tab-list [role="tab"] { padding-inline: 14px; }
  .term-card, .client-card, .article-card, .article-download { padding: 22px; }
  .dl-fab { right: 12px; bottom: 12px; }
}