/* 拍板首屏：静态三层配置装置。只对固定尺寸装饰应用透视。 */
.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; min-width: 0; }
.device-frame { position: relative; width: calc(680px * var(--device-scale)); height: calc(640px * var(--device-scale)); }
.device { position: absolute; left: 0; top: 0; width: 680px; height: 640px; margin: 0; transform: scale(var(--device-scale)); transform-origin: 0 0; }
.device::before { content: ""; position: absolute; right: -150px; top: -110px; width: 560px; height: 460px; background: radial-gradient(closest-side, var(--halo), var(--halo-0)); pointer-events: none; }
.device-shadow { position: absolute; left: 110px; top: 486px; width: 500px; height: 100px; background: radial-gradient(closest-side, var(--floor), var(--floor-0)); }
.device-float { position: absolute; inset: 0; }
.scene { position: absolute; inset: 0; perspective: 1600px; perspective-origin: 50% 42%; }
.assembly { position: absolute; left: 50%; top: 50%; width: 0; height: 0; transform-style: preserve-3d; transform: rotateX(-10deg) rotateY(-6deg); }
.hex { position: absolute; left: -135px; top: -155px; width: 270px; height: 310px; transform-style: preserve-3d; transform: translate3d(165px, -30px, -60px) rotateY(-28deg) rotateZ(6deg); }
.hex i { position: absolute; inset: 0; clip-path: polygon(50% 0%, 100% 24%, 100% 76%, 50% 100%, 0% 76%, 0% 24%); background: linear-gradient(160deg, var(--out-side), var(--out-side-dark)); }
.hex i:nth-child(1) { transform: translateZ(-14px); }
.hex i:nth-child(2) { transform: translateZ(-11.6px); }
.hex i:nth-child(3) { transform: translateZ(-9.2px); }
.hex i:nth-child(4) { transform: translateZ(-6.8px); }
.hex i:nth-child(5) { transform: translateZ(-4.4px); }
.hex i:nth-child(6) { transform: translateZ(-2px); }
.hex i:nth-child(7) { transform: translateZ(.4px); }
.hex i:nth-child(8) { transform: translateZ(2.8px); }
.hex i:nth-child(9) { transform: translateZ(5.2px); }
.hex i:nth-child(10) { transform: translateZ(7.6px); }
.hex i:nth-child(11) { transform: translateZ(10px); }
.hex i.hex-front { transform: translateZ(12.4px); background: radial-gradient(circle at 28% 18%, var(--sheen-soft) 0%, var(--sheen-faint) 18%, var(--transparent) 44%), linear-gradient(155deg, var(--out-a) 0%, var(--out-mid) 42%, var(--out-b) 100%); }
.route { position: absolute; left: 0; top: 0; transform-style: preserve-3d; transform: translate3d(30px, 20px, 30px); }
.route-pivot { position: absolute; left: 0; top: 0; transform-style: preserve-3d; }
.route-box { position: absolute; left: -280px; top: -44px; width: 560px; height: 88px; transform-style: preserve-3d; transform: rotateY(12deg) rotateZ(-9deg) rotateX(72deg); }
.rf { position: absolute; }
.rf-top { inset: 0; border-radius: var(--radius-plate); transform: translateZ(2px); background: linear-gradient(90deg, var(--route-a), var(--route-b)); }
.rf-top::after { content: ""; position: absolute; left: 8px; right: 8px; top: 0; height: 1px; background: var(--sheen-soft); }
.rf-bottom { inset: 0; border-radius: var(--radius-plate); transform: translateZ(-2px); background: var(--route-side-dark); }
.rf-far { left: 0; top: -2px; width: 560px; height: 4px; transform: rotateX(90deg); background: var(--route-side); }
.rf-near { left: 0; top: 86px; width: 560px; height: 4px; transform: rotateX(90deg); background: linear-gradient(90deg, var(--route-side), var(--route-side-dark)); }
.rf-left, .rf-right { top: 0; width: 4px; height: 88px; transform: rotateY(90deg); background: var(--route-side); }
.rf-left { left: -2px; }
.rf-right { left: 558px; }
.disc { position: absolute; left: -165px; top: -165px; width: 330px; height: 330px; transform-style: preserve-3d; transform: translate3d(-120px, 10px, 40px) rotateY(38deg); }
.disc i { position: absolute; inset: 0; border-radius: var(--radius-dot); }
.disc-rim-back { transform: translateZ(-6px); border: 2px solid var(--glass-edge); background: radial-gradient(circle at 68% 72%, var(--glass-tint), var(--transparent) 70%); }
.disc-rim-mid { transform: translateZ(-3px); border: 2px solid var(--glass-edge-soft); }
.disc-face { background: linear-gradient(140deg, var(--glass-a), var(--glass-b)); box-shadow: inset 0 0 0 1.5px var(--sheen), inset 0 0 38px var(--sheen-soft), inset -20px -26px 50px var(--glass-tint); }
.disc-face::before { content: ""; position: absolute; inset: 14px; border-radius: var(--radius-dot); border: 2px solid var(--transparent); border-top-color: var(--sheen); border-left-color: var(--sheen-faint); transform: rotate(-24deg); }
.disc-face::after { content: ""; position: absolute; inset: 27%; border-radius: var(--radius-dot); border: 1px solid var(--sheen-soft); }
.notes { position: absolute; inset: 0; }
.lead { position: absolute; width: 1px; background: var(--text); }
.lead-in { left: 148px; top: 112px; height: 72px; }
.lead-out { left: 404px; top: 68px; height: 112px; }
.lead-rt { left: 96px; top: 412px; height: 128px; }
.note { position: absolute; display: flex; align-items: center; gap: 8px; white-space: nowrap; font-family: var(--font-mono); font-size: 11px; font-weight: 600; line-height: 1; letter-spacing: .05em; color: var(--text); }
.note::before { content: ""; width: 9px; height: 9px; flex: none; background: var(--text); border-radius: var(--radius-tiny); }
.note span { color: var(--text-muted); font-weight: 500; }
.note-in { left: 144px; top: 93px; }
.note-out { left: 400px; top: 49px; }
.note-rt { left: 92px; top: 553px; }

.tabs { min-width: 0; }
.tablist, [role="tablist"].platform-tabs { display: flex; gap: 12px; }
.tablist > [role="tab"] {
  flex: 1;
  min-width: 0;
  min-height: 86px;
  padding: 18px 20px;
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-ctl);
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
}
.tablist > [role="tab"]:hover { border-color: var(--accent); }
.tablist > [role="tab"][aria-selected="true"] { background: var(--zone-ice); color: var(--text); border-color: var(--glass-edge); box-shadow: inset -4px 0 0 var(--glass-edge); }
.tab-panel { margin-top: 16px; }
.feature-detail { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 24px; gap: 32px; border: 1px solid var(--border); border-radius: var(--radius-card); background: var(--bg-panel); color: var(--text); box-shadow: var(--shadow-1); }
.feature-entries { padding: 8px 16px; }
.feature-entry { padding-block: 22px; border-bottom: 1px solid var(--border); }
.feature-entry:last-child { border-bottom: 0; }
.feature-entry summary { min-height: 44px; font-size: 19px; font-weight: 700; cursor: pointer; }
.feature-entry p { margin: 16px 0 0; font-size: 15px; line-height: 1.9; color: var(--text-muted); }
.square-icon { display: inline-grid; place-items: center; width: 30px; height: 30px; margin-right: 10px; border-radius: var(--radius-ctl); background: var(--bg-panel2); color: var(--accent-dark); font-family: var(--font-mono); font-size: 14px; vertical-align: middle; }
.code-stage { display: flex; align-items: center; min-width: 0; padding: 28px; border-radius: var(--radius-card); background: var(--zone-ice); color: var(--text); }
.code-stage.mist { background: var(--zone-mist); color: var(--text); }
.code-stage.peach { background: var(--zone-peach); color: var(--text); }
.code-window { width: 100%; min-width: 0; overflow: hidden; border-radius: var(--radius-card); background: var(--ink); color: var(--code-text); box-shadow: var(--shadow-2); }
.window-bar { display: flex; align-items: center; gap: 7px; padding: 13px 16px; border-bottom: 1px solid var(--ink-hover); font-family: var(--font-mono); font-size: 11px; color: var(--code-line); }
.window-dot { width: 6px; height: 6px; flex: none; border-radius: var(--radius-dot); background: var(--error); }
.window-dot:nth-child(2) { background: var(--warn); }
.window-dot:nth-child(3) { background: var(--success); }
.window-title { margin-left: 8px; }
.code-window pre { margin: 0; padding: 20px 16px; border-radius: var(--radius-ctl); }
.code-lines { counter-reset: config-line; }
.code-lines .line { display: block; counter-increment: config-line; }
.code-lines .line::before { content: counter(config-line, decimal-leading-zero); display: inline-block; width: 3em; color: var(--code-line); user-select: none; }
.code-key { color: var(--code-key); }
.code-string { color: var(--code-string); }
.toc { display: flex; flex-wrap: wrap; gap: 8px; padding: 16px; background: var(--bg-panel2); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius-card); }
.toc a { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 12px; background: var(--bg-panel); color: var(--accent-dark); border-radius: var(--radius-ctl); text-decoration: none; font-size: 14px; }
.toc a:hover { outline: 1px solid var(--border-strong); }
.toc-sticky { position: sticky; top: 16px; z-index: 10; }
.faq-item { border-bottom: 1px solid var(--border); padding-block: 18px; }
.faq-item summary { position: relative; min-height: 44px; padding: 10px 36px 10px 0; list-style: none; font-weight: 600; cursor: pointer; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; top: 8px; right: 4px; font-family: var(--font-mono); font-size: 20px; color: var(--accent-dark); }
.faq-item[open] summary::after { content: "−"; }
.faq-answer { padding-top: 10px; padding-right: 24px; color: var(--text-muted); line-height: 1.85; }
.term-card { border-top: 3px solid var(--glass-edge); }
.term-en { display: block; margin-bottom: 12px; font-family: var(--font-mono); color: var(--accent-dark); font-size: 12px; }
.term-card h3 { margin-bottom: 12px; }
.client-card { padding: 28px; min-width: 0; border: 1px solid var(--border); border-radius: var(--radius-card); background: var(--bg-panel); color: var(--text); box-shadow: var(--shadow-1); }
.client-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.client-head h3 { margin: 0; font-size: 26px; }
.client-meta { display: flex; flex-wrap: wrap; gap: 8px; color: var(--text-muted); font-size: 13px; }
.client-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.client-note { margin-top: 16px; font-size: 13px; color: var(--text-muted); }
.status-badge { display: inline-flex; align-items: center; gap: 6px; max-width: 100%; min-height: 26px; padding: 3px 9px; border: 1px solid var(--border); border-radius: var(--radius-ctl); background: var(--bg-panel2); color: var(--accent-dark); font-size: 12px; font-weight: 600; overflow-wrap: anywhere; }
.status-badge::before { content: ""; width: 5px; height: 5px; flex: none; border-radius: var(--radius-dot); background: var(--accent); }
.badge-primary { background: var(--zone-ice); color: var(--accent-dark); }
.badge-recommended { background: var(--bg-panel2); color: var(--text); }
.badge-recommended::before { background: var(--success); }
.badge-retired { background: var(--zone-peach); color: var(--text); }
.badge-retired::before { background: var(--warn); }
.article-card { display: flex; flex-direction: column; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 20px; color: var(--text-muted); font-size: 12px; font-family: var(--font-mono-cjk); }
.article-card h3 { margin-top: 0; line-height: 1.5; font-size: 20px; }
.article-card h3 a { color: var(--text); text-decoration: none; }
.article-card h3 a:hover { color: var(--accent-dark); }
.article-card p { color: var(--text-muted); font-size: 14px; line-height: 1.85; }
.article-link { margin-top: auto; font-size: 13px; font-weight: 600; }
.callout { margin: 24px 0; padding: 20px 24px; border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: var(--radius-ctl); background: var(--bg-panel2); color: var(--text); }
.callout p:last-child { margin-bottom: 0; }
.callout-warning { border-left-color: var(--warn); background: var(--zone-peach); color: var(--text); }
.table-scroll { min-width: 0; max-width: 100%; overflow-x: auto; overscroll-behavior-inline: contain; -webkit-overflow-scrolling: touch; }
.data-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 14px; }
.data-table th, .data-table td, .prose table th, .prose table td, .article-body table th, .article-body table td {
  min-width: 7em;
  padding: 14px 16px;
  border: 1px solid var(--border);
  overflow-wrap: normal;
  word-break: normal;
  vertical-align: top;
}
.data-table th, .prose table th, .article-body table th { background: var(--bg-panel2); color: var(--text); font-weight: 600; }
.data-table td, .prose table td, .article-body table td { background: var(--bg-panel); color: var(--text); }
.prose table, .article-body table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; min-width: 0; border-collapse: collapse; margin-block: 24px; }
.article-body { min-width: 0; }
.download-guide { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 40px; padding: 28px; border: 1px solid var(--border); border-radius: var(--radius-card); background: var(--zone-ice); color: var(--text); }
.download-guide h2 { margin: 0 0 10px; font-size: 24px; }
.download-guide p { margin: 0; color: var(--text-muted); }
.dl-fab { position: fixed; right: 24px; bottom: 24px; z-index: 50; display: inline-flex; align-items: center; gap: 10px; min-height: 44px; padding: 5px 16px 5px 5px; background: var(--bg-panel); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius-ctl); box-shadow: var(--shadow-2); text-decoration: none; font-size: 13px; font-weight: 600; }
.dl-fab-icon { display: grid; place-items: center; width: 32px; height: 32px; flex: none; border-radius: var(--radius-ctl); background: var(--ink); color: var(--on-ink); }
.dl-fab svg { width: 17px; height: 17px; }
.dl-fab:hover { color: var(--accent-dark); border-color: var(--border-strong); }
.sample-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.token-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.token-swatch { min-width: 0; border: 1px solid var(--border); border-radius: var(--radius-ctl); overflow: hidden; background: var(--bg-panel); color: var(--text); }
.token-paint { display: block; min-height: 64px; }
.token-swatch code { display: block; padding: 10px; font-size: 11px; }
.paint-bg { background: var(--bg); }
.paint-panel { background: var(--bg-panel); }
.paint-panel2 { background: var(--bg-panel2); }
.paint-border { background: var(--border); }
.paint-border-strong { background: var(--border-strong); }
.paint-accent { background: var(--accent); }
.paint-accent-dark { background: var(--accent-dark); }
.paint-text { background: var(--text); }
.paint-muted { background: var(--text-muted); }
.paint-soft { background: var(--text-soft); }
.paint-success { background: var(--success); }
.paint-success-ring { background: var(--success-ring); }
.paint-warn { background: var(--warn); }
.paint-error { background: var(--error); }
.paint-ink { background: var(--ink); }
.paint-ink-hover { background: var(--ink-hover); }
.paint-on-ink { background: var(--on-ink); }
.paint-veil { background: var(--veil); }
.paint-tag { background: var(--tag-line); }
.paint-bar { background: var(--bar); }
.paint-ice { background: var(--zone-ice); }
.paint-mist { background: var(--zone-mist); }
.paint-peach { background: var(--zone-peach); }
.paint-glass-a { background: var(--glass-a); }
.paint-glass-b { background: var(--glass-b); }
.paint-glass-edge { background: var(--glass-edge); }
.paint-glass-edge-soft { background: var(--glass-edge-soft); }
.paint-glass-tint { background: var(--glass-tint); }
.paint-sheen { background: var(--sheen); }
.paint-sheen-soft { background: var(--sheen-soft); }
.paint-sheen-faint { background: var(--sheen-faint); }
.paint-route-a { background: var(--route-a); }
.paint-route-b { background: var(--route-b); }
.paint-route-side { background: var(--route-side); }
.paint-route-dark { background: var(--route-side-dark); }
.paint-out-a { background: var(--out-a); }
.paint-out-mid { background: var(--out-mid); }
.paint-out-b { background: var(--out-b); }
.paint-out-side { background: var(--out-side); }
.paint-out-dark { background: var(--out-side-dark); }
.paint-halo { background: var(--halo); }
.paint-halo0 { background: var(--halo-0); }
.paint-floor { background: var(--floor); }
.paint-floor0 { background: var(--floor-0); }
.paint-wash { background: var(--wash); }
.paint-wash0 { background: var(--wash-0); }
.paint-transparent { background: var(--transparent); }
.paint-scrim { background: var(--scrim); }
.paint-code-text { background: var(--code-text); }
.paint-code-line { background: var(--code-line); }
.paint-code-string { background: var(--code-string); }
.paint-code-key { background: var(--code-key); }
.mono-sample { font-family: var(--font-mono-cjk); }
@media (max-width: 960px) {
  .feature-detail { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .token-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .tablist { gap: 6px; }
  .tablist > [role="tab"] { min-height: 68px; padding: 12px 8px; font-size: 14px; }
  .platform-tabs { flex-wrap: wrap; }
  .platform-tabs > [role="tab"] { flex-basis: calc(50% - 6px); }
  .feature-detail { padding: 14px; }
  .feature-entries { padding: 0 4px; }
  .feature-entry summary { font-size: 17px; }
  .code-stage { padding: 14px; }
  .download-guide { flex-direction: column; align-items: flex-start; padding: 22px; }
  .token-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dl-fab { right: 16px; bottom: 16px; }
  .client-card { padding: 22px; }
  .callout { padding: 18px; }
}