@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@300;400;500;600&family=Spectral:wght@400;500;600&display=swap");

:root {
  color-scheme: dark;
  --primary-50: #FCFAF6;
  --primary-100: #F8F4ED;
  --primary-200: #F4EFE6;
  --primary-300: #F0EBE0;
  --primary-400: #EFE9DD;
  --primary-500: #EDE6D6;
  --primary-600: #E2D7C2;
  --primary-700: #CFC3AC;
  --primary-800: #A89B82;
  --primary-900: #6E6353;
  --primary-950: #4A4136;
  --secondary-300: #C2D5DB;
  --secondary-500: #AFC6CF;
  --secondary-700: #76929C;
  --secondary-900: #45565D;
  --accent-500: #A89B82;
  --accent-700: #6E6353;
  --accent-900: #3A342C;
  --neutral-50: #F4F5F6;
  --neutral-100: #E4E7E9;
  --neutral-200: #C4C9CD;
  --neutral-300: #9BA3A9;
  --neutral-400: #6E7880;
  --neutral-500: #4D575E;
  --neutral-600: #3A444B;
  --neutral-700: #2C353B;
  --neutral-800: #222A30;
  --neutral-900: #1B2127;
  --neutral-950: #12171B;
  --bg: #1B2127;
  --surface: #222A30;
  --surface-subtle: #2C353B;
  --ink: #F0EBE0;
  --ink-secondary: #CFC3AC;
  --muted: #A89B82;
  --inverse: #1B2127;
  --line: #3A444B;
  --line-subtle: #2C353B;
  --line-strong: #A89B82;
  --focus: #EDE6D6;
  --success-bg: #1F2A26;
  --success-text: #A9C4B2;
  --success-border: #3A4D44;
  --warning-bg: #2E2920;
  --warning-text: #D8C58E;
  --warning-border: #544B33;
  --error-bg: #2E2220;
  --error-text: #D2A296;
  --error-border: #553F39;
  --info-bg: #1F282C;
  --info-text: #AFC6CF;
  --info-border: #3A4D54;
  --font-heading: "Noto Serif SC", "Songti SC", serif;
  --font-body: "Spectral", "Noto Serif SC", serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, monospace;
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --shadow-xs: 0 1px 2px rgba(0,0,0,.35);
  --shadow-sm: 0 2px 6px rgba(0,0,0,.40);
  --shadow-md: 0 6px 18px rgba(0,0,0,.45);
  --shadow-lg: 0 14px 40px rgba(0,0,0,.50);
  --shadow-xl: 0 24px 70px rgba(0,0,0,.55);
  --shadow-2xl: 0 40px 110px rgba(0,0,0,.60);
  --shadow-focus: 0 0 0 3px rgba(237,230,214,.30);
  --fast: 120ms;
  --normal: 250ms;
  --slow: 400ms;
  --slower: 600ms;
  --ease: cubic-bezier(.4,0,.2,1);
  --ease-out: cubic-bezier(0,0,.2,1);
  --container: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 0;
  background:
    radial-gradient(90% 70% at 78% -22%, color-mix(in srgb, var(--secondary-500) 7%, transparent), transparent 62%),
    var(--bg);
  color: var(--ink);
  font: 400 16px/1.625 var(--font-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .22;
  background-image:
    radial-gradient(circle at 22% 18%, transparent 0 18%, color-mix(in srgb, var(--primary-500) 6%, transparent) 18.2%, transparent 18.5%),
    radial-gradient(circle at 75% 72%, transparent 0 24%, color-mix(in srgb, var(--primary-500) 4%, transparent) 24.2%, transparent 24.5%);
  background-size: 680px 680px, 920px 920px;
}
.portal-mesh-gradient {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
  transition: opacity 900ms var(--ease-out);
}
.portal-mesh-gradient.is-ready { opacity: .82; }
.portal-mesh-gradient canvas {
  position: absolute !important;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  filter: saturate(.82) contrast(.96);
}
.portal-mesh-gradient::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, color-mix(in srgb,var(--bg) 8%,transparent), color-mix(in srgb,var(--bg) 34%,transparent)),
    radial-gradient(80% 78% at 76% 12%, transparent 0 38%, color-mix(in srgb,var(--bg) 20%,transparent) 100%);
}
button, input, select, textarea { font: inherit; }
button, a { color: inherit; }
button { cursor: pointer; }
a { text-underline-offset: 4px; }
code, .mono { font-family: var(--font-mono); }
h1, h2, h3 { font-family: var(--font-heading); text-wrap: balance; }
p { text-wrap: pretty; }
button, a, input, select, textarea { touch-action: manipulation; }
::selection { background: var(--primary-700); color: var(--inverse); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--neutral-950); }
::-webkit-scrollbar-thumb { background: var(--neutral-600); border: 3px solid var(--neutral-950); border-radius: 9999px; }

.shell { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
.eyebrow {
  margin: 0 0 16px;
  color: var(--muted);
  font: 400 .75rem/1.5 var(--font-body);
  letter-spacing: .05em;
  text-transform: uppercase;
}
.eyebrow::before { content: "—"; margin-right: 10px; color: var(--secondary-500); }
.primary, .ghost, .nav-button, .copy {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-md);
  padding: 0 20px;
  font-weight: 500;
  letter-spacing: .05em;
  text-decoration: none;
  transition: background-color var(--fast) var(--ease-out), color var(--fast) var(--ease-out), border-color var(--fast) var(--ease-out), box-shadow var(--fast) var(--ease-out), opacity var(--fast) var(--ease-out);
}
.primary, .copy { border: 1px solid var(--primary-500); background: var(--primary-500); color: var(--inverse); box-shadow: var(--shadow-sm); }
.primary:hover, .copy:hover { background: var(--primary-200); box-shadow: var(--shadow-focus); }
.ghost, .nav-button { border: 1px solid var(--line-strong); background: transparent; color: var(--primary-500); }
.ghost:hover, .nav-button:hover { background: var(--surface); color: var(--primary-200); }
.primary:active, .ghost:active, .nav-button:active, .copy:active { opacity: .78; }
.primary:focus-visible, .ghost:focus-visible, .nav-button:focus-visible, .copy:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 1px solid var(--focus);
  outline-offset: 3px;
  box-shadow: var(--shadow-focus);
}

/* Portal */
.portal-page .mast { min-height: auto; display: grid; grid-template-rows: auto auto; padding: 110px 0 40px; }
.portal-page .nav { position: fixed; top: 14px; left: 50%; transform: translateX(-50%); z-index: 80; width: min(calc(var(--container) + 64px), calc(100% - 28px)); min-height: 62px; display: grid; grid-template-columns: minmax(0,1fr) auto minmax(0,1fr); align-items: center; gap: 24px; padding: 0 26px; border: 1px solid var(--line-subtle); border-radius: var(--radius-lg); background: color-mix(in srgb, var(--neutral-900) 62%, transparent); -webkit-backdrop-filter: blur(22px) saturate(1.15); backdrop-filter: blur(22px) saturate(1.15); box-shadow: 0 14px 44px rgba(0,0,0,.38); }
.portal-page .brand { display: inline-flex; align-items: center; gap: 12px; color: var(--primary-300); font: 500 1rem/1.2 var(--font-heading); letter-spacing: .03em; text-decoration: none; }
.brand-mark { width: 36px; height: 36px; flex: 0 0 auto; }
.portal-page .brand-name { display: inline-flex; align-items: baseline; gap: 10px; }
.portal-page .brand-name small { color: var(--muted); font-size: .625rem; font-weight: 400; letter-spacing: .12em; }
.brand-seal { width: 28px; height: 28px; display: inline-grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 9999px; color: var(--primary-500); font-size: 13px; box-shadow: inset 0 1px 3px rgba(0,0,0,.40); }
.portal-page .navlinks { display: flex; align-items: center; justify-content: center; gap: 28px; color: var(--ink-secondary); font-size: .875rem; letter-spacing: .05em; }
.portal-page .navlinks a { text-decoration: none; transition: color var(--fast) var(--ease-out); }
.portal-page .navlinks a:hover { color: var(--primary-100); }
.portal-page .nav-end { display: inline-flex; align-items: center; justify-self: end; gap: 18px; }
.portal-page .lang-switch { position: relative; }
.portal-page .lang-switch > summary { list-style: none; display: inline-flex; align-items: center; gap: 7px; min-height: 32px; padding: 0 11px; border: 1px solid var(--line-subtle); border-radius: var(--radius-md); background: color-mix(in srgb, var(--neutral-900) 55%, transparent); color: var(--ink-secondary); font-size: .8125rem; letter-spacing: .04em; cursor: pointer; transition: border-color var(--fast) var(--ease-out), color var(--fast) var(--ease-out), background-color var(--fast) var(--ease-out); }
.portal-page .lang-switch > summary::-webkit-details-marker { display: none; }
.portal-page .lang-switch > summary::marker { content: ""; }
.portal-page .lang-switch > summary:hover { border-color: var(--line-strong); color: var(--primary-100); }
.portal-page .lang-switch > summary:focus-visible { outline: 1px solid var(--focus); outline-offset: 2px; }
.portal-page .lang-summary .lang-flag { font-size: .9375rem; line-height: 1; }
.portal-page .lang-switch .lang-caret { font-size: .625rem; color: var(--muted); transition: transform var(--fast) var(--ease-out); }
.portal-page .lang-switch[open] > summary { border-color: var(--line-strong); color: var(--primary-100); }
.portal-page .lang-switch[open] .lang-caret { transform: rotate(180deg); }
.portal-page .lang-menu { position: absolute; top: calc(100% + 8px); right: 0; z-index: 90; min-width: 172px; display: flex; flex-direction: column; gap: 2px; padding: 6px; border: 1px solid var(--line-subtle); border-radius: var(--radius-md); background: color-mix(in srgb, var(--neutral-900) 92%, transparent); -webkit-backdrop-filter: blur(22px) saturate(1.15); backdrop-filter: blur(22px) saturate(1.15); box-shadow: var(--shadow-lg); }
.portal-page .lang-item { display: flex; align-items: center; gap: 10px; min-height: 36px; padding: 0 12px; border-radius: var(--radius-sm); color: var(--ink-secondary); font-size: .8125rem; letter-spacing: .02em; text-decoration: none; transition: background-color var(--fast) var(--ease-out), color var(--fast) var(--ease-out); }
.portal-page .lang-item .lang-flag { font-size: 1rem; line-height: 1; }
.portal-page .lang-item:hover { background: var(--surface); color: var(--primary-100); }
.portal-page .lang-item.is-current { color: var(--primary-100); background: color-mix(in srgb, var(--primary-500) 12%, transparent); cursor: default; }
.portal-page .nav-github { display: inline-flex; align-items: center; gap: 8px; border: 0; padding: 6px 0; color: var(--ink-secondary); text-decoration: none; transition: color var(--fast) var(--ease-out),opacity var(--fast) var(--ease-out); }
.portal-page .nav-github svg { width: 18px; height: 18px; fill: currentColor; }
.portal-page .nav-github:hover { color: var(--primary-100); }
.portal-page .hero { align-self: center; display: grid; grid-template-columns: minmax(0,1fr) minmax(360px,480px); gap: clamp(48px,6vw,80px); align-items: start; padding: 48px 0 52px; }
.portal-page .hero > * { min-width: 0; }
.portal-page .hero-copy { min-height: 506px; display: flex; flex-direction: column; }
.portal-page .hero h1 { max-width: 780px; margin: 0; color: var(--primary-300); font-size: clamp(4rem,8vw,6rem); font-weight: 300; line-height: 1; letter-spacing: -.02em; }
.portal-page .hero h1 span { display: block; color: var(--primary-700); }
.portal-page .hero-copy > p:not(.eyebrow) { max-width: 620px; margin: 32px 0 40px; color: var(--ink-secondary); font-size: 1.125rem; line-height: 1.9; letter-spacing: .01em; }
.portal-page .install-label { max-width: 720px; display: flex; justify-content: space-between; gap: 16px; margin-top: auto; margin-bottom: 12px; color: var(--muted); font: .625rem/1.4 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; }
.portal-page .cli { display: flex; max-width: 720px; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 12px 12px 16px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--neutral-950); box-shadow: var(--shadow-inner, inset 0 1px 3px rgba(0,0,0,.40)); overflow: hidden; }
.portal-page .cli code { min-width: 0; overflow: hidden; color: var(--neutral-100); font-size: .75rem; text-overflow: ellipsis; white-space: nowrap; }
.portal-page .copy { flex: 0 0 auto; min-height: 32px; padding: 0 14px; font-size: .875rem; }
.portal-page .hero-links { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }
.hero-object { align-self: start; display: grid; grid-template-rows: 1fr auto; justify-items: center; margin: 0; }
.vitrine { position: relative; width: 100%; min-height: 480px; display: grid; place-items: center; }
.vitrine::before { display: none; }
.particle-logo-stage { position: relative; width: min(100%,480px); aspect-ratio: 1; isolation: isolate; display: grid; place-items: center; }
.particle-logo-stage::before { content: ""; position: absolute; inset: 13%; z-index: 0; border-radius: 50%; pointer-events: none; background: radial-gradient(circle,color-mix(in srgb,var(--secondary-500) 14%,transparent),transparent 68%); filter: blur(30px); opacity: .68; transition: opacity var(--slow) var(--ease-out),transform var(--slow) var(--ease-out); }
.particle-logo-stage:hover::before { opacity: .9; transform: scale(1.08); }
.raking::after { content: ""; position: absolute; inset: 0; z-index: 5; pointer-events: none; background: linear-gradient(115deg,transparent 35%,rgba(255,252,245,.18) 50%,transparent 65%); transform: translateX(-60%); transition: transform var(--slower) var(--ease-out); }
.incised { color: transparent; background-color: var(--primary-600); background-clip: text; -webkit-background-clip: text; font: 300 clamp(4.5rem,9vw,7rem)/1 var(--font-heading); opacity: .35; text-shadow: 0 1px 0 rgba(255,252,245,.85),0 -1px 0 rgba(110,99,83,.55); transition: opacity var(--slow) var(--ease); }
.raking:hover::after { transform: translateX(60%); }
.vitrine:hover .incised { opacity: .58; }
.particle-logo { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; display: block; opacity: 0; cursor: crosshair; touch-action: pan-y; transition: opacity var(--slower) var(--ease-out),filter var(--normal) var(--ease-out); }
.particle-logo-stage.has-3d .particle-logo { opacity: 1; }
.particle-logo-stage.has-3d:hover .particle-logo { filter: drop-shadow(0 0 18px color-mix(in srgb,var(--secondary-500) 22%,transparent)); }
.animefx-imprint { position: relative; z-index: 2; width: 58%; height: auto; opacity: .92; filter: drop-shadow(0 0 28px rgba(237,230,214,.2)); animation: specimen-pulse 4.8s var(--ease) infinite alternate; transition: opacity var(--slow) var(--ease),filter var(--slow) var(--ease); }
.particle-logo-stage.has-3d .animefx-imprint { visibility: hidden; opacity: 0; animation-play-state: paused; }
.vitrine:hover .animefx-imprint { opacity: 1; filter: drop-shadow(0 0 28px rgba(237,230,214,.28)); }
.particle-logo-stage.has-3d:hover .animefx-imprint { opacity: 0; }
@keyframes specimen-pulse { from { transform: rotate(-3deg) scale(.97); } to { transform: rotate(3deg) scale(1.03); } }
.hero-object figcaption { margin-top: 16px; color: var(--muted); font-size: .75rem; letter-spacing: .05em; text-align: center; }
.hero-object figcaption a { display: inline-flex; align-items: center; justify-content: center; gap: 8px; color: inherit; text-decoration: none; transition: color var(--fast) var(--ease-out); }
.hero-object figcaption a:hover { color: var(--primary-300); }
.portal-page .section { position: relative; padding: 96px 0; }
.portal-page .section + .section { border-top: 1px solid var(--line-subtle); }
.portal-page .section-head { display: grid; grid-template-columns: minmax(0,680px); gap: 16px; align-items: start; justify-content: start; margin-bottom: 40px; }
.portal-page .section-head h2 { margin: 0; color: var(--primary-300); font-size: clamp(2.25rem,5vw,4rem); font-weight: 400; line-height: 1.1; letter-spacing: -.02em; }
.portal-page .section-head p { max-width: 680px; margin: 0; color: var(--ink-secondary); }
.portal-page .toolbar { position: sticky; top: 88px; z-index: 40; padding: 8px 0; }
body.portal-page > main, body.portal-page > footer { position: relative; z-index: 1; }
/* header 层级必须高于 main/footer,否则 fixed 导航会被困在自身层叠上下文里、被后续内容盖住 */
body.portal-page > header { position: relative; z-index: 30; }
.portal-page .toolbar-inner { display: flex; align-items: center; gap: 8px; overflow: auto; padding: 3px; }
.portal-page .tab { min-height: 36px; flex: 0 0 auto; border: 1px solid var(--line); border-radius: 9999px; padding: 0 14px; background: color-mix(in srgb, var(--neutral-900) 78%, transparent); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); color: var(--ink-secondary); font-size: .875rem; letter-spacing: .05em; transition: background-color var(--fast) var(--ease-out),color var(--fast) var(--ease-out),border-color var(--fast) var(--ease-out); }
.portal-page .tab:hover { border-color: var(--line-strong); color: var(--primary-100); }
.portal-page .tab[aria-selected="true"] { border-color: var(--primary-500); background: var(--primary-500); color: var(--inverse); }
.portal-page .effects { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; margin-top: 24px; }
.portal-page .effect-card { position: relative; min-width: 0; overflow: hidden; transform: translateY(0); border: 1px solid var(--line-subtle); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-lg); transition: transform var(--normal) var(--ease),border-color var(--normal) var(--ease),box-shadow var(--normal) var(--ease); }
.portal-page .effect-card:hover, .portal-page .effect-card:focus-within { transform: translateY(-2px); border-color: var(--line-strong); box-shadow: var(--shadow-xl); }
.portal-page .effect-card::after { content: ""; position: absolute; inset: 0; z-index: 3; pointer-events: none; background: linear-gradient(115deg,transparent 35%,rgba(255,252,245,.12) 50%,transparent 65%); transform: translateX(-75%); transition: transform var(--slower) var(--ease-out); }
.portal-page .effect-card:hover::after { transform: translateX(75%); }
.portal-page .preview { position: relative; aspect-ratio: 16/10; overflow: hidden; border-bottom: 1px solid var(--line-subtle); background: var(--neutral-950); cursor: pointer; padding: 0; }
.portal-page .preview img, .portal-page .preview iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; object-fit: cover; }
.portal-page .preview iframe { pointer-events: none; }
.portal-page .preview img { opacity: .92; transition: opacity var(--normal) var(--ease); }
.portal-page .effect-card:hover .preview img { opacity: 1; }
.portal-page .preview:hover { box-shadow: inset 0 0 0 1px var(--line-strong); }
.portal-page .preview:focus-visible { outline: 2px solid var(--primary-500); outline-offset: -2px; }
.portal-page .preview-play { position: absolute; inset: 0; margin: auto; z-index: 4; width: 54px; height: 54px; display: grid; place-items: center; border-radius: 50%; background: color-mix(in srgb, var(--bg) 55%, transparent); color: var(--ink); font-size: 18px; opacity: 0; box-shadow: var(--shadow-md); backdrop-filter: blur(6px); transition: opacity var(--normal) var(--ease), background-color var(--fast) var(--ease-out); }
.portal-page .preview:hover .preview-play, .portal-page .preview:focus-visible .preview-play { opacity: 1; }
.portal-page .effect-card.is-playing .preview-play { opacity: 0; }
.portal-page .effect-body { position: relative; z-index: 4; padding: 24px; background: var(--surface); }
.portal-page .effect-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.portal-page .effect-top h3 { min-width: 0; margin: 0; overflow-wrap: anywhere; color: var(--primary-300); font: 400 .875rem/1.5 var(--font-mono); }
.portal-page .tags { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 5px; }
.portal-page .tag, .portal-page .contract span, .detail-page .badge { border: 1px solid var(--line); border-radius: 9999px; padding: 3px 8px; color: var(--muted); font: .625rem/1.4 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; }
.portal-page .effect-card p { min-height: 78px; margin: 16px 0; color: var(--ink-secondary); font-size: .875rem; }
.portal-page .mini-code { display: flex; align-items: center; gap: 10px; min-height: 42px; overflow: hidden; border: 1px solid var(--line-subtle); border-radius: var(--radius-md); padding: 8px 10px; background: var(--neutral-950); }
.portal-page .mini-code code { min-width: 0; overflow: hidden; color: var(--neutral-100); font-size: .625rem; text-overflow: ellipsis; white-space: nowrap; }
.portal-page .mini-code button { flex: 0 0 auto; margin-left: auto; border: 0; background: transparent; color: var(--primary-700); font-size: .75rem; }
.portal-page .detail-link { min-height: 42px; display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 18px; border: 1px solid var(--line-strong); border-radius: var(--radius-md); padding: 0 14px; background: transparent; color: var(--primary-300); font-size: .875rem; text-decoration: none; transition: background-color var(--fast) var(--ease-out),border-color var(--fast) var(--ease-out); }
.portal-page .detail-link:hover { border-color: var(--primary-500); background: color-mix(in srgb,var(--primary-500) 7%,transparent); }
.portal-page .empty { grid-column: 1/-1; padding: 80px 20px; color: var(--muted); text-align: center; }
.portal-page .workflow { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; margin-bottom: 24px; }
.portal-page .workflow-step { min-width: 0; border: 1px solid var(--line-subtle); border-radius: var(--radius-lg); padding: 24px; background: var(--surface); box-shadow: var(--shadow-lg); }
.portal-page .workflow-step.is-featured { border-color: var(--line-strong); background: linear-gradient(145deg,color-mix(in srgb,var(--secondary-500) 7%,var(--surface)),var(--surface) 70%); }
.portal-page .step-number { color: var(--secondary-500); font: .75rem/1 var(--font-mono); letter-spacing: .08em; }
.portal-page .workflow-step h3 { margin: 28px 0 12px; color: var(--primary-300); font-size: 1.25rem; font-weight: 400; }
.portal-page .workflow-step p { min-height: 102px; margin: 0 0 20px; color: var(--ink-secondary); font-size: .875rem; }
.portal-page .workflow-step p code { color: var(--primary-300); }
.portal-page .compact-code { min-height: 42px; display: flex; align-items: center; gap: 8px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 7px 8px 7px 11px; background: var(--neutral-950); }
.portal-page .compact-code code { min-width: 0; overflow: hidden; color: var(--neutral-100); font-size: .625rem; text-overflow: ellipsis; white-space: nowrap; }
.portal-page .compact-code button { flex: 0 0 auto; margin-left: auto; border: 0; background: transparent; color: var(--primary-700); font-size: .75rem; }
.portal-page .step-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.portal-page .step-actions .primary, .portal-page .step-actions .ghost { min-height: 34px; padding: 0 12px; font-size: .6875rem; }
.portal-page .text-link { color: var(--primary-500); font-size: .875rem; }
.portal-page .step-button { min-height: 40px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line-strong); border-radius: var(--radius-md); padding: 0 14px; color: var(--primary-300); text-decoration: none; transition: background-color var(--fast) var(--ease-out),border-color var(--fast) var(--ease-out); }
.portal-page .step-button:hover { border-color: var(--primary-500); background: color-mix(in srgb,var(--primary-500) 7%,transparent); }
.portal-page .workflow-ai { grid-column: 1 / -1; }
.portal-page .workflow-ai p { min-height: 0; }
.portal-page .compact-code.is-multiline { align-items: flex-start; padding: 12px 12px 12px 14px; }
.portal-page .compact-code.is-multiline code { overflow: visible; white-space: normal; text-overflow: clip; font-size: .6875rem; line-height: 1.7; }
.portal-page .recipes { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.portal-page .recipe { display: flex; flex-direction: column; min-height: 300px; overflow: hidden; border: 1px solid var(--line-subtle); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-lg); }
.portal-page .recipe-preview { position: relative; display: block; width: 100%; aspect-ratio: 16/9; overflow: hidden; border: 0; border-bottom: 1px solid var(--line-subtle); padding: 0; background: var(--neutral-950); cursor: pointer; }
.portal-page .recipe-preview img { width: 100%; height: 100%; object-fit: cover; opacity: .94; transition: opacity var(--normal) var(--ease), transform var(--slow) var(--ease); }
.portal-page .recipe-preview:hover img, .portal-page .recipe-preview:focus-visible img { opacity: 1; transform: scale(1.02); }
.portal-page .recipe-preview::after { content: ""; position: absolute; inset: 0; background: color-mix(in srgb, var(--bg) 22%, transparent); opacity: 0; transition: opacity var(--normal) var(--ease); }
.portal-page .recipe-usage { position: absolute; z-index: 2; top: 10px; right: 10px; font-family: var(--font-mono, ui-monospace, monospace); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; color: #fff; background: rgba(12, 16, 20, .58); backdrop-filter: blur(4px); pointer-events: none; }
.portal-page .recipe-usage.is-video { box-shadow: inset 0 0 0 1px rgba(255, 148, 184, .75); }
.portal-page .recipe-usage.is-web { box-shadow: inset 0 0 0 1px rgba(140, 196, 255, .75); }
.portal-page .recipe-preview:hover::after, .portal-page .recipe-preview:focus-visible::after { opacity: 1; }
.portal-page .recipe-preview-play { position: absolute; inset: 0; margin: auto; z-index: 2; width: 60px; height: 60px; display: grid; place-items: center; border-radius: 50%; background: color-mix(in srgb, var(--bg) 55%, transparent); color: var(--ink); font-size: 20px; opacity: 0; box-shadow: var(--shadow-md); backdrop-filter: blur(6px); transition: opacity var(--normal) var(--ease), background-color var(--fast) var(--ease-out), color var(--fast) var(--ease-out); }
.portal-page .recipe-preview:hover .recipe-preview-play, .portal-page .recipe-preview:focus-visible .recipe-preview-play { opacity: 1; background: var(--primary-500); color: var(--inverse); }
.portal-page .recipe-body { display: flex; flex-direction: column; flex: 1; padding: 28px; }
.portal-page .recipe h3 { margin: 0; overflow-wrap: anywhere; color: var(--primary-300); font: 400 .875rem/1.5 var(--font-mono); }
.portal-page .recipe-meta { margin: 8px 0 14px; color: var(--muted); font-size: .75rem; letter-spacing: .05em; }
.portal-page .contract { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0; }
.portal-page .timeline { position: relative; height: 132px; margin: 20px 0 10px; overflow: hidden; border-inline: 1px solid var(--line); background: repeating-linear-gradient(90deg,transparent 0,transparent calc(25% - 1px),var(--line-subtle) 25%); }
.portal-page .timeline-row { position: absolute; height: 18px; overflow: hidden; border-radius: var(--radius-sm); padding: 2px 6px; background: var(--secondary-900); color: var(--neutral-50); font: .5625rem/14px var(--font-mono); text-overflow: ellipsis; white-space: nowrap; }
.portal-page .timeline-row:nth-child(2n) { background: var(--primary-900); }
.portal-page .transition-note, .portal-page .pair-note, .portal-page .neutral-note { margin: 7px 0; color: var(--muted); font-size: .75rem; }
.portal-page .recipe-demo-button { width: 100%; min-height: 44px; display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 18px; border: 1px solid var(--primary-500); border-radius: var(--radius-md); padding: 0 14px; background: var(--primary-500); color: var(--inverse); font: 500 .875rem/1 var(--font-body); cursor: pointer; box-shadow: var(--shadow-sm); transition: background-color var(--fast) var(--ease-out),box-shadow var(--fast) var(--ease-out); }
.portal-page .recipe-demo-button:hover { background: var(--primary-200); box-shadow: var(--shadow-focus); }
.portal-page .recipe-demo-button span:last-child { font-size: .7rem; }
.portal-page .recipe .neutral-note { margin-top: auto; }
.portal-page .recipe-modal { width: min(90vw, 1280px, calc((88vh - 72px) * 16 / 9)); max-width: none; max-height: 94vh; padding: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); color: var(--ink); box-shadow: var(--shadow-2xl); overflow: hidden; }
.portal-page .recipe-modal::backdrop { background: rgba(10,13,16,.72); backdrop-filter: blur(4px); }
.portal-page .recipe-modal-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 18px; border-bottom: 1px solid var(--line-subtle); }
.portal-page .recipe-modal-title { color: var(--primary-300); font: 400 .875rem/1.4 var(--font-mono); overflow-wrap: anywhere; }
.portal-page .recipe-modal-actions { display: flex; align-items: center; gap: 14px; flex: 0 0 auto; }
.portal-page .recipe-modal-open { color: var(--primary-300); font-size: .75rem; text-decoration: none; white-space: nowrap; }
.portal-page .recipe-modal-open:hover { text-decoration: underline; }
.portal-page .recipe-modal-close { min-height: 34px; padding: 0 12px; border: 1px solid var(--line); border-radius: var(--radius-md); background: transparent; color: var(--ink); font: 400 .75rem/1 var(--font-body); cursor: pointer; transition: background-color var(--fast) var(--ease-out),border-color var(--fast) var(--ease-out); }
.portal-page .recipe-modal-close:hover { border-color: var(--line-strong); background: var(--surface-subtle); }
.portal-page .recipe-modal-stage { --afx-scale: 1; position: relative; width: 100%; aspect-ratio: 16/9; overflow: hidden; background: var(--neutral-950); }
.portal-page .recipe-modal-frame { position: absolute; top: 0; left: 0; width: 1920px; height: 1080px; border: 0; transform-origin: 0 0; transform: scale(var(--afx-scale)); opacity: 0; transition: opacity var(--normal) var(--ease); }
.portal-page .recipe-modal-stage.is-ready .recipe-modal-frame { opacity: 1; }
.portal-page .recipe-modal-loading { position: absolute; inset: 0; margin: auto; height: max-content; text-align: center; color: var(--muted); font: .8125rem/1.5 var(--font-mono); transition: opacity var(--normal) var(--ease); }
.portal-page .recipe-modal-stage.is-ready .recipe-modal-loading { opacity: 0; }
.portal-page .open-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(200px,1fr)); gap: 16px; }
.portal-page .open-grid a { min-height: 190px; display: flex; flex-direction: column; border: 1px solid var(--line-subtle); border-radius: var(--radius-lg); padding: 24px; background: var(--surface); color: inherit; text-decoration: none; box-shadow: var(--shadow-lg); transition: transform var(--normal) var(--ease),border-color var(--normal) var(--ease); }
.portal-page .open-grid a:hover { transform: translateY(-2px); border-color: var(--line-strong); }
.portal-page .open-grid span { min-height: 1.4em; color: var(--secondary-500); font: .625rem/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.portal-page .open-grid strong { display: flex; align-items: flex-start; min-height: 2.8em; margin-top: 20px; color: var(--primary-300); font: 400 1.125rem/1.4 var(--font-heading); }
.portal-page .open-grid small { margin-top: 12px; color: var(--muted); font-size: .75rem; }
.portal-page .footer { width: min(calc(var(--container) + 64px), calc(100% - 28px)); margin: 0 auto 26px; padding: 48px clamp(24px,4vw,56px) 36px; border: 1px solid var(--line-subtle); border-radius: var(--radius-lg); background: color-mix(in srgb, var(--neutral-900) 68%, transparent); -webkit-backdrop-filter: blur(22px); backdrop-filter: blur(22px); color: var(--muted); }
.portal-page .footer-inner { display: grid; grid-template-columns: minmax(260px,.8fr) minmax(0,1.2fr); gap: 64px; }
.portal-page .footer a { color: var(--primary-300); }
.portal-page .footer-brand { display: flex; align-items: flex-start; gap: 16px; }
.portal-page .footer-brand strong { color: var(--primary-300); font: 500 1.125rem/1.4 var(--font-heading); }
.portal-page .footer-brand p { margin: 8px 0 0; font-size: .875rem; }
.portal-page .footer-links { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 32px; }
.portal-page .footer-links > div { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.portal-page .footer-links strong { margin-bottom: 4px; color: var(--ink-secondary); font-size: .75rem; font-weight: 400; letter-spacing: .08em; text-transform: uppercase; }
.portal-page .footer-links a { font-size: .875rem; }
.portal-page .footer-note { display: flex; justify-content: space-between; gap: 24px; margin-top: 48px; border-top: 1px solid var(--line-subtle); padding-top: 20px; font: .6875rem/1.5 var(--font-mono); }

/* Effect detail */
.detail-page .topbar { position: sticky; top: 0; z-index: 30; border-bottom: 1px solid var(--line-subtle); background: color-mix(in srgb,var(--bg) 92%,transparent); backdrop-filter: blur(12px); }
.detail-page .topbar-inner { width: min(var(--container),calc(100% - 48px)); min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-inline: auto; }
.detail-page .back { display: inline-flex; align-items: center; gap: 10px; color: var(--primary-300); font: 500 .875rem/1.2 var(--font-heading); letter-spacing: .03em; text-decoration: none; }
.detail-page .back .brand-seal { width: 26px; height: 26px; }
.detail-page .effect-nav { display: flex; gap: 8px; }
.detail-page .nav-button { min-height: 36px; padding-inline: 14px; font-size: .75rem; }
.detail-page .nav-button[aria-disabled="true"] { opacity: .35; pointer-events: none; }
.detail-page .page { width: min(var(--container),calc(100% - 48px)); margin-inline: auto; padding: 64px 0 96px; }
.detail-page .identity { display: grid; grid-template-columns: minmax(0,1fr) minmax(280px,.42fr); gap: 64px; align-items: end; margin-bottom: 48px; }
.detail-page .identity h1 { margin: 0; overflow-wrap: anywhere; color: var(--primary-300); font-size: clamp(2.25rem,5vw,4rem); font-weight: 400; line-height: 1.1; letter-spacing: -.02em; }
.detail-page .summary { max-width: 560px; margin: 0; color: var(--ink-secondary); font-size: 1.125rem; }
.detail-page .badges { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
.detail-page .workspace { display: grid; grid-template-columns: minmax(0,1fr) 380px; gap: 24px; align-items: start; }
.detail-page .stage-column { min-width: 0; }
.detail-page .preview-card, .detail-page .code-card, .detail-page .contract-card, .detail-page .inspector { border: 1px solid var(--line-subtle); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-lg); }
.detail-page .preview-card, .detail-page .code-card, .detail-page .inspector { overflow: hidden; }
.detail-page .preview-head { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 16px; border-bottom: 1px solid var(--line-subtle); }
.detail-page .preview-label { display: flex; align-items: center; gap: 9px; color: var(--primary-300); font: 400 .75rem/1.3 var(--font-body); letter-spacing: .05em; }
.detail-page .live-dot { width: 8px; height: 8px; border-radius: 9999px; background: var(--success-text); box-shadow: 0 0 0 3px var(--success-bg); }
.detail-page .preview-status { margin-top: 3px; color: var(--muted); font: .625rem/1.3 var(--font-mono); }
.detail-page .preview-status[data-state="error"] { color: var(--error-text); }
.detail-page .preview-actions { display: flex; gap: 8px; }
.detail-page .preview-actions .ghost, .detail-page .preview-actions .primary { min-height: 36px; padding-inline: 14px; font-size: .75rem; }
.detail-page .preview-frame { position: relative; min-height: 400px; aspect-ratio: 16/10; background: var(--neutral-900); }
.detail-page .preview-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: var(--neutral-900); }
.detail-page .code-card { margin-top: 24px; }
.detail-page .card-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 16px; border-bottom: 1px solid var(--line-subtle); }
.detail-page .card-head h2, .detail-page .inspector-head h2 { margin: 0; color: var(--primary-300); font-size: 1rem; font-weight: 500; letter-spacing: .05em; }
.detail-page .card-head .ghost { min-height: 32px; padding-inline: 12px; font-size: .75rem; }
.detail-page .code-card pre { min-height: 128px; margin: 0; overflow: auto; padding: 24px; background: var(--neutral-950); color: var(--neutral-100); font: .75rem/1.8 var(--font-mono); }
.detail-page .contract-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 24px; }
.detail-page .contract-card { padding: 24px; }
.detail-page .contract-card h2 { margin: 0 0 14px; color: var(--primary-300); font-size: .875rem; font-weight: 500; letter-spacing: .05em; }
.detail-page .contract-card.is-warning { border-color: var(--warning-border); background: var(--warning-bg); }
.detail-page .contract-card.is-warning h2 { color: var(--warning-text); }
.detail-page .contract-card ul { margin: 0; padding-left: 18px; color: var(--ink-secondary); }
.detail-page .contract-card li + li { margin-top: 8px; }
.detail-page .empty-note { margin: 0; color: var(--muted); }
.detail-page .inspector { position: sticky; top: 96px; max-height: calc(100vh - 120px); display: flex; flex-direction: column; }
.detail-page .inspector-head { flex: 0 0 auto; padding: 20px; border-bottom: 1px solid var(--line-subtle); background: var(--surface); }
.detail-page .inspector-title-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.detail-page .inspector-head p { margin: 6px 0 0; color: var(--muted); font-size: .75rem; }
.detail-page .change-count { flex: 0 0 auto; border: 1px solid var(--line); border-radius: 9999px; padding: 4px 8px; color: var(--primary-700); font: .625rem/1.3 var(--font-mono); }
.detail-page .inspector-tools { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 16px; }
.detail-page .inspector-tools .ghost { min-height: 36px; padding-inline: 10px; font-size: .75rem; }
.detail-page .parameters { overflow: auto; padding: 0 20px 24px; }
.detail-page .param { padding: 20px 0; border-bottom: 1px solid var(--line-subtle); }
.detail-page .param:last-child { border-bottom: 0; }
.detail-page .param.is-changed .param-name::after { content: "MOD"; margin-left: 8px; color: var(--primary-700); font: .5rem/1 var(--font-mono); letter-spacing: .05em; }
.detail-page .param.is-invalid .control, .detail-page .param.is-invalid textarea { border-color: var(--error-border); }
.detail-page .param-top { display: flex; align-items: start; justify-content: space-between; gap: 10px; }
.detail-page .param-name { overflow-wrap: anywhere; color: var(--primary-300); font: 400 .75rem/1.4 var(--font-mono); }
.detail-page .param-reset { border: 0; padding: 0; background: transparent; color: var(--muted); font-size: .75rem; }
.detail-page .param-reset:hover { color: var(--primary-100); }
.detail-page .param-meta { display: flex; align-items: center; gap: 7px; margin: 6px 0 10px; color: var(--muted); font: .625rem/1.4 var(--font-mono); }
.detail-page .param-default { min-width: 0; max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.detail-page .control, .detail-page .json-control { width: 100%; border: 1px solid var(--line); border-radius: var(--radius-md); outline: 0; background: var(--surface); color: var(--ink); }
.detail-page .control { min-height: 40px; padding: 9px 14px; }
.detail-page .control:focus, .detail-page .json-control:focus { border-color: var(--focus); box-shadow: var(--shadow-focus); }
.detail-page .json-control { min-height: 96px; resize: vertical; padding: 10px 14px; font: .6875rem/1.5 var(--font-mono); }
.detail-page .switch-row { min-height: 42px; display: flex; align-items: center; justify-content: space-between; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 8px 12px; background: var(--surface); }
.detail-page .switch { position: relative; width: 40px; height: 22px; }
.detail-page .switch input { position: absolute; opacity: 0; pointer-events: none; }
.detail-page .switch-track { position: absolute; inset: 0; border-radius: 9999px; background: var(--neutral-600); transition: background-color var(--fast) var(--ease); }
.detail-page .switch-track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 9999px; background: var(--neutral-100); transition: transform var(--fast) var(--ease); }
.detail-page .switch input:checked + .switch-track { background: var(--primary-500); }
.detail-page .switch input:checked + .switch-track::after { transform: translateX(18px); background: var(--inverse); }
.detail-page .color-wrap { position: relative; }
.detail-page .color-wrap .control { padding-left: 42px; }
.detail-page .color-swatch { position: absolute; top: 50%; left: 13px; width: 17px; height: 17px; z-index: 2; transform: translateY(-50%); border: 1px solid var(--line-strong); border-radius: var(--radius-sm); }
.detail-page .field-error { min-height: 15px; margin-top: 6px; color: var(--error-text); font-size: .625rem; }
.detail-page .loading, .detail-page .fatal { padding: 112px 20px; color: var(--muted); text-align: center; }
.detail-page .fatal strong { display: block; margin-bottom: 10px; color: var(--primary-300); font-size: 1.5rem; }

@media (max-width: 1040px) {
  .portal-page .hero { grid-template-columns: minmax(0,1fr) minmax(280px,360px); gap: 48px; }
  .portal-page .effects { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .portal-page .workflow { grid-template-columns: 1fr 1fr; }
  .portal-page .workflow-step.is-featured { grid-row: span 2; }
  .portal-page .open-grid { grid-template-columns: 1fr 1fr; }
  .detail-page .workspace { grid-template-columns: 1fr; }
  .detail-page .inspector { position: relative; top: auto; max-height: none; }
  .detail-page .parameters { overflow: visible; }
}

@media (max-width: 760px) {
  .shell, .detail-page .topbar-inner, .detail-page .page { width: min(100% - 24px,var(--container)); }
  .portal-page .nav { min-height: 68px; grid-template-columns: 1fr auto; }
  .portal-page .navlinks { display: none; }
  .portal-page .mast { min-height: auto; }
  .portal-page .hero { grid-template-columns: 1fr; gap: 28px; padding: 64px 0 48px; }
  .portal-page .hero-copy { min-height: 0; }
  .portal-page .install-label { margin-top: 0; }
  .portal-page .hero h1 { font-size: clamp(3rem,16vw,4rem); }
  .portal-page .hero-object { display: none; }
  .portal-mesh-gradient.is-ready { opacity: .66; }
  .portal-page .section { padding: 64px 0; }
  .portal-page .section-head, .detail-page .identity { grid-template-columns: 1fr; gap: 20px; }
  .portal-page .section-head p { margin-top: 4px; }
  .portal-page .effects, .portal-page .recipes, .portal-page .workflow, .portal-page .open-grid { grid-template-columns: 1fr; }
  .portal-page .workflow-step.is-featured { grid-row: auto; }
  .portal-page .workflow-step p { min-height: 0; }
  .portal-page .effect-card p { min-height: 0; }
  .portal-page .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .portal-page .footer-links { grid-template-columns: 1fr 1fr; }
  .portal-page .footer-note { display: block; }
  .portal-page .footer-note span { display: block; }
  .portal-page .footer-note span + span { margin-top: 8px; }
  .detail-page .effect-nav .nav-button span { display: none; }
  .detail-page .page { padding-top: 40px; }
  .detail-page .identity h1 { font-size: clamp(2rem,11vw,3rem); }
  .detail-page .workspace { gap: 16px; }
  .detail-page .preview-head { align-items: flex-start; }
  .detail-page .preview-actions { flex-wrap: wrap; justify-content: flex-end; }
  .detail-page .preview-frame { min-height: 240px; }
  .detail-page .contract-grid { grid-template-columns: 1fr; gap: 16px; }
}

/* 极窄视口：导航卡内容收紧，GitHub 收成图标，让语言下拉 + 图标不撑破毛玻璃卡 */
@media (max-width: 440px) {
  .portal-page .nav { padding: 0 18px; }
  .portal-page .nav-end { gap: 12px; }
  .portal-page .nav-github span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .raking::after, .portal-page .effect-card::after { display: none; }
  .portal-mesh-gradient { transition: none; }
}