/* 交互标签页：面板必须由 aria-controls 显式关联。 */
.tab-list, [role="tablist"].tab-list { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.tab-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--clear);
  border-radius: var(--r-pill);
  background: var(--bg);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}
.tab-button:hover { color: var(--text); }
.tab-button[aria-selected="true"] { background: var(--panel-2); color: var(--text); }
.tab-button:disabled { color: var(--muted); cursor: not-allowed; }
.tab-panel { padding-top: 24px; }
.tab-panel[hidden] { display: none; }

/* 长页目录直接放在覆盖全部章节的父容器内。 */
.toc {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px;
  margin-bottom: 32px;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--panel);
  color: var(--text);
}
.toc a { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 8px 12px; border-radius: var(--r-pill); color: var(--muted); font-size: 13px; }
.toc a:hover, .toc a[aria-current] { background: var(--panel-2); color: var(--text); }
.toc-static { position: static; }

.faq-item { border-bottom: 1px solid var(--border); padding: 0 4px; }
.faq-item summary { position: relative; padding: 22px 36px 22px 0; list-style: none; font-size: 17px; cursor: pointer; color: var(--text); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 4px; top: 20px; color: var(--muted); font-family: var(--font-mono); font-size: 22px; }
.faq-item[open] summary::after { content: "−"; }
.faq-answer { padding-bottom: 24px; max-width: 780px; color: var(--code-val); }
.faq-answer p:last-child { margin-bottom: 0; }
.term-card { padding: 28px; border: 1px solid var(--border); border-radius: var(--r-xl); background: var(--panel); color: var(--text); }
.term-card h3 { font-size: 22px; margin: 14px 0 12px; }
.term-card p { color: var(--code-val); }
.term-alias { display: block; font: 12px var(--font-mono); color: var(--muted); margin-bottom: 14px; }
.badge-row { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.badge, .tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  max-width: 100%;
  min-height: 24px;
  padding: 3px 9px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-pill);
  background: var(--panel);
  color: var(--code-val);
  font-size: 12px;
  line-height: 1.5;
  white-space: normal;
  overflow-wrap: anywhere;
}
.badge-primary { border-color: var(--accent-line); background: var(--canvas); color: var(--accent-soft); }
.badge-recommended { background: var(--panel-2); color: var(--text); }
.badge-archived { background: var(--panel); color: var(--warn); }
.status-dot { width: 6px; height: 6px; border-radius: var(--r-round); background: var(--success); color: var(--bg); display: inline-block; }
.client-card { display: grid; gap: 22px; padding: 30px; border: 1px solid var(--border); border-radius: var(--r-xl); background: var(--panel); color: var(--text); }
.client-card.is-preferred { border-color: var(--accent-line); }
.client-heading { display: flex; align-items: flex-start; flex-wrap: wrap; gap: 12px; }
.client-heading h3 { margin: 0 auto 0 0; }
.client-card p { margin: 0; color: var(--code-val); }
.client-meta { display: flex; flex-wrap: wrap; gap: 10px 20px; font-size: 13px; color: var(--muted); }
[data-ver]:empty { display: none; }
.client-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.post-card { display: flex; flex-direction: column; align-items: flex-start; padding: 28px; border: 1px solid var(--border); border-radius: var(--r-xl); background: var(--panel); color: var(--text); }
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 20px; color: var(--muted); font-size: 12px; }
.post-card h3 { font-size: 23px; line-height: 1.45; }
.post-card h3 a:hover { color: var(--accent-soft); }
.post-card p { color: var(--code-val); }
.post-card > .text-link { margin-top: auto; padding-top: 12px; }
.callout {
  margin: 24px 0;
  padding: 20px 24px;
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  border-radius: var(--r-md);
  background: var(--panel);
  color: var(--code-val);
}
.callout strong { color: var(--text); }
.callout p:last-child { margin-bottom: 0; }
.callout-warning { border-left-color: var(--warn); }
.callout-error { border-left-color: var(--error); }
.table-scroll { width: 100%; max-width: 100%; min-width: 0; overflow-x: auto; border: 1px solid var(--border); border-radius: var(--r-lg); -webkit-overflow-scrolling: touch; }
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; background: var(--panel); color: var(--code-val); }
.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(--border);
  text-align: left;
  vertical-align: top;
  overflow-wrap: normal;
  word-break: normal;
}
.data-table th, .prose table th, .article-body table th { background: var(--panel-2); color: var(--text); font-weight: var(--weight-medium); }
.data-table tr:last-child td { border-bottom: 0; }
.prose table, .article-body table {
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
  min-width: 0;
  border-collapse: collapse;
}
.prose table code, .article-body table code { overflow-wrap: anywhere; white-space: normal; }
.dl-fab {
  position: fixed;
  right: max(20px, env(safe-area-inset-right));
  bottom: max(20px, env(safe-area-inset-bottom));
  z-index: 25;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  max-width: calc(100% - 32px);
  min-height: 56px;
  padding: 12px 18px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  background: var(--panel-2);
  color: var(--text);
  box-shadow: var(--shadow-float);
}
.dl-fab svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.dl-fab span { min-width: 0; }
.dl-fab small { display: block; color: var(--code-val); font-size: 11px; }
.dl-fab:hover { border-color: var(--accent); }
.article-download { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 48px; padding: 28px; border: 1px solid var(--border); border-radius: var(--r-xl); background: var(--panel); color: var(--text); }
.article-download h2 { font-size: 24px; margin: 0 0 8px; }
.article-download p { margin: 0; color: var(--muted); }

/* 画布 + 侧栏特性台，64 / 36。 */
.feature-desk { display: grid; grid-template-columns: minmax(0, 64fr) minmax(0, 36fr); gap: 24px; padding: 24px; border: 1px solid var(--border); border-radius: var(--r-xl); background: var(--panel); color: var(--text); }
.feature-canvases { padding: 28px; border-radius: var(--r-lg); background: var(--panel-2); color: var(--text); }
.feature-canvases .tab-panel { padding-top: 0; }
.canvas-tag { display: inline-flex; align-items: center; padding: 3px 9px; margin-bottom: 24px; border: 1px solid var(--accent-line); border-radius: var(--r-pill); background: var(--canvas); color: var(--accent-soft); font-size: 12px; }
.feature-tabs { display: flex; flex-direction: column; gap: 6px; }
.feature-tabs .tab-button { width: 100%; justify-content: flex-start; border-radius: var(--r-md); padding: 14px 18px; background: var(--panel); color: var(--muted); }
.feature-tabs .tab-button[aria-selected="true"] { background: var(--panel-2); color: var(--text); }
.feature-tabs .tab-button[aria-selected="true"]::after { content: ""; position: absolute; left: 18px; right: 18px; bottom: 0; height: 2px; background: var(--accent); color: var(--text); transform: scaleX(0); transform-origin: left; }
.feature-desk.is-playing .tab-button[aria-selected="true"]::after { animation: feature-timer var(--feature-interval, 7s) linear forwards; }
.feature-desk.is-paused .tab-button[aria-selected="true"]::after { transform: scaleX(1); }
.feature-detail { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: end; gap: 28px; padding: 8px 8px 4px; }
.feature-detail p { max-width: 760px; color: var(--code-val); margin: 0; }
.feature-detail h3 { margin-bottom: 12px; }
@keyframes feature-timer { to { transform: scaleX(1); } }

/* 主窗口静态道具；不对其添加任何入场或循环动画。 */
.win { position: relative; isolation: isolate; height: 468px; margin-top: 32px; border: 1px solid var(--border); border-radius: var(--r-xl); background: var(--panel); color: var(--text); box-shadow: var(--shadow-card); overflow: hidden; }
.win::after { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(44% 64% at 7% 108%, var(--accent-haze-soft), var(--clear) 72%); color: var(--text); pointer-events: none; }
.win-chrome { position: relative; display: flex; align-items: center; height: 42px; padding: 0 18px; border-bottom: 1px solid var(--border); }
.dots { display: flex; gap: 8px; }
.dots i { width: 11px; height: 11px; flex: none; border-radius: var(--r-round); background: var(--dot); color: var(--text); }
.win-title { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .02em; color: var(--muted); white-space: nowrap; }
.win-body { display: grid; grid-template-columns: minmax(0, 16fr) minmax(0, 56fr) minmax(0, 28fr); height: calc(100% - 42px); }
.side { display: flex; flex-direction: column; gap: 2px; padding: 16px 12px; }
.side-logo { width: 26px; height: 26px; margin: 2px 0 14px 10px; }
.side-item { display: flex; align-items: center; gap: 10px; height: 34px; padding: 0 12px; border-radius: var(--r-nav); font-size: 13.5px; color: var(--muted); }
.side-item svg, .ico { width: 16px; height: 16px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.side-item.is-on { background: var(--panel-2); color: var(--text); }
.side-foot { display: flex; align-items: center; gap: 8px; margin-top: auto; padding: 0 12px; font-family: var(--font-mono); font-size: 11.5px; color: var(--muted); }
.stage { position: relative; padding: 16px 6px 18px; }
.canvas { position: relative; height: 100%; border: 1.5px solid var(--accent); border-radius: var(--r-lg); background: var(--canvas); color: var(--text); box-shadow: 0 0 2px 0 var(--accent-glow), 0 0 24px 0 var(--accent-glow-in), inset 0 0 24px 0 var(--accent-glow-in); overflow: hidden; }
.canvas::before { content: ""; position: absolute; inset: 0; background: radial-gradient(70% 82% at 0% 100%, var(--accent-haze), var(--clear) 66%); color: var(--text); pointer-events: none; }
.canvas > * { position: relative; }
.canvas-head { display: flex; align-items: center; justify-content: space-between; height: 40px; padding: 0 10px 0 14px; border-bottom: 1px solid var(--accent-line); background: linear-gradient(180deg, var(--accent-haze-soft), var(--clear)); color: var(--accent-soft); }
.canvas-label { display: inline-flex; align-items: center; gap: 9px; font-size: 12.5px; color: var(--accent-soft); }
.canvas-label em { font-style: normal; font-family: var(--font-mono); font-size: 11.5px; color: var(--accent-soft); }
.add-btn { display: inline-grid; place-items: center; width: 24px; height: 24px; border: 1px solid var(--accent-line); border-radius: var(--r-xs); background: var(--accent-haze-soft); color: var(--accent-soft); font-size: 19px; }
.canvas-body { display: flex; flex-direction: column; gap: 12px; padding: 16px; }
.profile { display: flex; align-items: center; gap: 12px; padding: 12px; border: 1px solid var(--accent-line); border-radius: var(--r-md); background: var(--panel); color: var(--text); }
.profile-ico { display: grid; place-items: center; width: 36px; height: 36px; flex: none; border-radius: var(--r-icon); background: var(--panel-2); color: var(--muted); }
.profile-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; margin-right: auto; }
.profile-name { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 13px; color: var(--text); }
.profile-name .tag { min-height: 18px; padding: 0 7px; font-family: var(--font-body); font-size: 11px; }
.profile-sub { font-family: var(--font-mono); font-size: 11px; color: var(--muted); }
.acts { display: flex; gap: 6px; flex-shrink: 0; }
.act { display: inline-flex; align-items: center; justify-content: center; min-height: 26px; padding: 3px 11px; border: 1px solid var(--border); border-radius: var(--r-xs); background: var(--panel-2); font-size: 12px; color: var(--text); }
.opts { border: 1px solid var(--border); border-radius: var(--r-md); background: var(--panel); color: var(--text); }
.opt { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 34px; padding: 5px 14px; font-size: 13px; color: var(--text); }
.opt + .opt { border-top: 1px solid var(--border); }
.opt-key { display: inline-flex; flex-wrap: wrap; align-items: baseline; gap: 8px; }
.opt-key small { font-family: var(--font-mono); font-size: 11px; color: var(--muted); }
.sw { position: relative; width: 32px; height: 18px; flex: none; border-radius: var(--r-pill); background: var(--border); color: var(--text); }
.sw::after { content: ""; position: absolute; top: 3px; left: 3px; width: 12px; height: 12px; border-radius: var(--r-round); background: var(--muted); color: var(--bg); }
.sw.on { background: var(--accent); color: var(--text); }
.sw.on::after { left: 17px; background: var(--text); color: var(--bg); }
.num { display: inline-flex; align-items: center; height: 22px; padding: 0 10px; border: 1px solid var(--border); border-radius: var(--r-xs); background: var(--panel-2); font-family: var(--font-mono); font-size: 12px; color: var(--text); }
.modebar { position: absolute; left: 50%; bottom: 16px; transform: translateX(-50%); display: flex; gap: 2px; padding: 4px; border: 1px solid var(--border); border-radius: var(--r-pill); background: var(--panel); color: var(--text); box-shadow: var(--shadow-float); }
.mode { display: inline-flex; align-items: center; justify-content: center; min-height: 28px; padding: 4px 16px; border-radius: var(--r-pill); font-size: 12.5px; color: var(--muted); white-space: nowrap; }
.mode.is-on { background: var(--panel-3); color: var(--text); }
.ovr { display: flex; flex-direction: column; gap: 12px; padding: 16px 18px 18px 12px; }
.tabs { display: flex; flex-wrap: wrap; gap: 4px; }
.tab { display: inline-flex; align-items: center; min-height: 30px; padding: 4px 12px; border-radius: var(--r-sm); font-size: 12.5px; color: var(--muted); }
.tab.is-on { background: var(--panel-2); color: var(--text); }
.code { flex: 1; display: flex; flex-direction: column; min-height: 0; border: 1px solid var(--border); border-radius: var(--r-code); background: var(--panel-2); color: var(--code-val); overflow: hidden; }
.code-head { display: flex; align-items: center; justify-content: space-between; min-height: 32px; padding: 0 12px; border-bottom: 1px solid var(--border); font-family: var(--font-mono); font-size: 11px; color: var(--muted); }
.code-lines { margin: 0; padding: 10px 0; list-style: none; overflow-x: auto; font-family: var(--font-mono); font-size: 12px; line-height: 22px; color: var(--code-val); white-space: pre; }
.code-lines li { display: grid; grid-template-columns: 34px max-content; }
.code-lines li::before { content: attr(data-n); padding-right: 12px; text-align: right; color: var(--muted); }
.code-lines li.cur { background: var(--panel-3); color: var(--code-val); }
.c-com { color: var(--muted); }
.c-key { color: var(--accent-soft); }
.c-typ { color: var(--accent-soft); }
.c-pun { color: var(--muted); }
.caret { display: inline-block; width: 1.5px; height: 14px; vertical-align: -2px; background: var(--accent-soft); color: var(--bg); }
.note { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; min-height: 48px; padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--panel); font-size: 12.5px; color: var(--muted); }
.note span:first-of-type { margin-right: auto; }
.save { display: inline-flex; align-items: center; min-height: 26px; padding: 3px 11px; border-radius: var(--r-xs); background: var(--panel-3); font-size: 12px; color: var(--text); }
.peek-card { display: flex; align-items: flex-start; justify-content: space-between; gap: 32px; min-height: 260px; margin-bottom: 32px; padding: 34px 36px; border: 1px solid var(--border); border-radius: var(--r-xl); background: var(--panel); color: var(--text); }
.peek-tag { display: inline-flex; align-items: center; min-height: 22px; padding: 2px 9px; border: 1px solid var(--accent-line); border-radius: var(--r-pill); font-size: 12px; color: var(--accent-soft); }
.peek-card h2 { margin: 14px 0 8px; font-size: 26px; line-height: 1.3; letter-spacing: -.008em; }
.peek-card p { max-width: 560px; margin: 0; color: var(--muted); }

/* 预览页色板：颜色仍然只来自根令牌。 */
.swatch-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.swatch { border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden; background: var(--panel); color: var(--text); }
.swatch-color { height: 64px; border-bottom: 1px solid var(--border); color: var(--text); }
.swatch code { display: block; padding: 10px 12px; font-size: 11px; color: var(--code-val); }
.sw-bg { background: var(--bg); }
.sw-panel { background: var(--panel); }
.sw-panel-2 { background: var(--panel-2); }
.sw-panel-3 { background: var(--panel-3); }
.sw-border { background: var(--border); }
.sw-border-strong { background: var(--border-strong); }
.sw-accent { background: var(--accent); }
.sw-accent-dark { background: var(--accent-dark); }
.sw-accent-soft { background: var(--accent-soft); }
.sw-accent-line { background: var(--accent-line); }
.sw-accent-glow { background: var(--accent-glow); }
.sw-accent-glow-in { background: var(--accent-glow-in); }
.sw-accent-haze { background: var(--accent-haze); }
.sw-accent-haze-soft { background: var(--accent-haze-soft); }
.sw-canvas { background: var(--canvas); }
.sw-text { background: var(--text); }
.sw-muted { background: var(--muted); }
.sw-code-val { background: var(--code-val); }
.sw-dim { background: var(--dim); }
.sw-dot { background: var(--dot); }
.sw-success { background: var(--success); }
.sw-warn { background: var(--warn); }
.sw-error { background: var(--error); }
.sw-shade { background: var(--shade); }
.sw-sheen { background: var(--sheen); }
.sw-clear { background: var(--clear); }
.preview-stack { display: grid; gap: 24px; }
.type-display { font-family: var(--font-display); font-size: clamp(34px, 3.4vw, 48px); line-height: 1.14; }
.type-subtitle { font-size: 20px; color: var(--code-val); }
.preview-state { display: grid; gap: 10px; }
.preview-state small { color: var(--muted); }
.preview-states { display: flex; flex-wrap: wrap; align-items: start; gap: 20px; }

@media (max-width: 1100px) {
  .win-body { grid-template-columns: minmax(0, 64fr) minmax(0, 36fr); }
  .side { display: none; }
}
@media (max-width: 768px) {
  .feature-desk { grid-template-columns: minmax(0, 1fr); padding: 16px; gap: 16px; }
  .feature-tabs { flex-direction: row; flex-wrap: wrap; }
  .feature-tabs .tab-button { width: auto; flex: 1 1 40%; }
  .feature-detail { flex-direction: column; align-items: start; }
  .feature-canvases { padding: 20px 16px; }
  .swatch-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .article-download { flex-direction: column; align-items: start; }
  .client-card, .term-card, .post-card { padding: 24px 20px; }
  .win { height: 440px; }
  .win-body { grid-template-columns: minmax(0, 1fr); }
  .ovr { display: none; }
  .acts .act:last-child { display: none; }
  .peek-card { flex-direction: column; padding: 26px 22px; }
  .type-display { font-size: clamp(24px, 7vw, 30px); }
}
@media (max-width: 400px) {
  .profile { gap: 8px; padding: 10px; flex-wrap: wrap; }
  .profile-ico { display: none; }
  .acts { gap: 4px; }
  .act { padding-inline: 8px; }
  .canvas-body { padding: 12px; }
  .opt { padding-inline: 10px; }
  .opt-key { gap: 4px; }
}
@media (prefers-reduced-motion: reduce) {
  .feature-desk .tab-button[aria-selected="true"]::after { transform: scaleX(1); }
}