.stage { margin: 34px auto 0; max-width: 1120px; text-align: left; }
.app-window { margin: 0; background: var(--bg-panel); color: var(--text); border: 1px solid var(--border); border-radius: var(--r-window); box-shadow: var(--shadow-float); overflow: hidden; }
.win-bar { height: 46px; padding-inline: 18px; display: grid; grid-template-columns: 60px 1fr 60px; align-items: center; border-bottom: 1px solid var(--border); background: var(--bg-panel); color: var(--text); }
.lights { display: flex; gap: 8px; }
.light { width: 12px; height: 12px; flex: none; border-radius: var(--r-circle); box-shadow: inset 0 0 0 .5px rgb(var(--shadow-rgb) / .18); }
.light-close { background: var(--error); }
.light-min { background: var(--warn); }
.light-max { background: var(--success); }
.win-title { text-align: center; font-size: 13px; font-weight: 600; letter-spacing: -.005em; }
.win-title .sep { color: var(--text-muted); margin-inline: 4px; font-weight: 400; }
.win-body { display: grid; grid-template-columns: 216px minmax(0, 1fr) 336px; min-height: 540px; }
.win-side { background: var(--bg-panel-2); color: var(--text); border-right: 1px solid var(--border); padding: 18px 12px; }
.side-cap { padding-inline: 10px; margin-bottom: 8px; font-size: 11.5px; font-weight: 600; color: var(--text-muted); letter-spacing: .04em; }
.side-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.side-item { display: flex; align-items: center; gap: 10px; min-height: 36px; padding: 7px 10px; border-radius: var(--r-item); font-size: 13.5px; color: var(--text); }
.side-item svg { width: 16px; height: 16px; flex: none; color: var(--text-muted); fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.side-item.is-current { background: var(--side-current); color: var(--text); font-weight: 600; }
.win-main { padding: 22px 28px 24px; }
.pane-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.pane-title { margin: 0; font-size: 17px; font-weight: 700; letter-spacing: -.015em; line-height: 1.3; }
.segmented { display: inline-flex; padding: 3px; border-radius: var(--r-pill); background: var(--bg-panel-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--border); }
.seg { display: inline-flex; align-items: center; height: 28px; padding-inline: 15px; border-radius: var(--r-pill); font-size: 13px; color: var(--text-muted); }
.seg.is-on { background: var(--bg-panel); color: var(--text); font-weight: 600; box-shadow: var(--shadow-raise); }
.field-row { margin-top: 16px; min-height: 46px; padding: 8px 8px 8px 14px; display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; background: var(--bg); color: var(--text-muted); border: 1px solid var(--border); border-radius: var(--r-group); font-size: 13px; }
.select-like { display: inline-flex; align-items: center; gap: 8px; min-height: 30px; padding: 4px 10px 4px 12px; border-radius: var(--r-item); background: var(--bg-panel); color: var(--text); box-shadow: inset 0 0 0 1px var(--border), var(--shadow-hair); font-family: var(--font-mono); font-size: 12.5px; }
.rules { margin-top: 14px; border: 1px solid var(--border); border-radius: var(--r-group); overflow-x: auto; }
.rule-head, .rule-row { display: grid; grid-template-columns: 24px minmax(0, 1fr) 20px 80px; align-items: center; gap: 6px; padding-inline: 12px; min-width: 360px; }
.rule-head { min-height: 34px; background: var(--bg-panel-2); color: var(--text-muted); font-size: 11.5px; font-weight: 600; }
.rule-row { min-height: 50px; border-top: 1px solid var(--border); background: var(--bg-panel); color: var(--text); }
.cbox { width: 16px; height: 16px; border-radius: var(--r-check); border: 1.5px solid var(--accent); background: var(--bg-panel); color: var(--text); display: grid; place-items: center; flex: none; font-size: 11px; line-height: 1; }
.cbox.is-checked { border-color: var(--accent-dark); background: var(--accent-grad); color: var(--on-accent); box-shadow: var(--shadow-hair); }
.rule-match { font-family: var(--font-mono); font-size: 12px; overflow-wrap: anywhere; }
.rule-match .k, .rule-row.is-off .rule-match { color: var(--text-muted); }
.rule-arrow { font-family: var(--font-mono); font-size: 13px; color: var(--text-muted); }
.out-tag { justify-self: start; display: inline-flex; align-items: center; gap: 6px; min-height: 24px; padding: 2px 9px; border-radius: var(--r-pill); background: var(--bg-panel-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--border); font-family: var(--font-mono); font-size: 11px; }
.out-dot { width: 6px; height: 6px; flex: none; border-radius: var(--r-circle); background: var(--text); }
.out-block .out-dot { background: var(--error); }
.out-direct .out-dot { background: var(--success); }
.rules-foot { margin-top: 12px; padding-inline: 4px; display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 12.5px; color: var(--text-muted); }
.add-rule { color: var(--text); font-weight: 500; }
.win-aside { border-left: 1px solid var(--border); padding: 22px 24px 24px; display: grid; align-content: start; gap: 16px; }
.group-cap { margin: 0 0 8px 4px; font-size: 12px; font-weight: 600; color: var(--text-muted); }
.group { padding: 5px; background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: var(--r-group); }
.opt { display: flex; align-items: center; gap: 10px; min-height: 34px; padding: 6px 10px; border-radius: var(--r-item); font-size: 13.5px; color: var(--text); }
.opt.is-on { background: var(--bg-panel); color: var(--text); box-shadow: var(--shadow-raise); font-weight: 600; }
.opt .mono { font-size: 13px; }
.radio { width: 16px; height: 16px; flex: none; border-radius: var(--r-circle); border: 1.5px solid var(--border-strong); background: var(--bg-panel); display: grid; place-items: center; }
.opt.is-on .radio { border-color: var(--text); }
.opt.is-on .radio::after { content: ""; width: 6px; height: 6px; border-radius: var(--r-circle); background: var(--text); }
.switch-group { padding-inline: 14px; }
.switch-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 46px; font-size: 13.5px; }
.switch-row + .switch-row { border-top: 1px solid var(--border); }
.switch { position: relative; width: 36px; height: 21px; flex: none; border-radius: var(--r-pill); background: var(--switch-off); }
.switch::after { content: ""; position: absolute; top: 2.5px; left: 2.5px; width: 16px; height: 16px; border-radius: var(--r-circle); background: var(--bg-panel); box-shadow: var(--shadow-hair); }
.switch.is-on { background: var(--accent-grad); }
.switch.is-on::after { transform: translateX(15px); }
.win-foot { min-height: 58px; padding: 12px 20px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; border-top: 1px solid var(--border); background: var(--bg-panel); color: var(--text-muted); font-size: 12.5px; }
.win-btns { display: flex; gap: 8px; }
.win-btn { display: inline-flex; align-items: center; min-height: 32px; padding: 5px 18px; border-radius: var(--r-pill); font-size: 13px; font-weight: 500; color: var(--text); background: var(--bg-panel); box-shadow: inset 0 0 0 1px var(--border); }
.win-btn.is-primary { background: var(--text); color: var(--bg-panel); box-shadow: var(--shadow-raise); }
.tabs { min-width: 0; }
.tab-list, [role="tablist"] { display: flex; align-items: center; gap: 8px; overflow-x: auto; max-width: 100%; padding: 5px; scrollbar-width: thin; }
[role="tab"] { flex: none; display: inline-flex; align-items: center; gap: 10px; min-height: 44px; padding: 10px 18px; border: 0; border-radius: var(--r-pill); background: var(--transparent); color: var(--text-muted); font-weight: 500; }
[role="tab"] svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.6; }
[role="tab"][aria-selected="true"] { background: var(--bg-panel-2); color: var(--text); box-shadow: var(--shadow-hair); }
[role="tabpanel"] { min-width: 0; margin-top: 24px; }
.feature-tabs { display: grid; grid-template-columns: 224px minmax(0, 1fr); gap: 36px; align-items: start; }
.feature-tabs [role="tablist"] { display: flex; flex-direction: column; align-items: stretch; gap: 6px; overflow: visible; }
.feature-tabs [role="tab"] { position: relative; justify-content: flex-start; width: 100%; border-radius: var(--r-group); }
.feature-tabs [role="tab"][aria-selected="true"]::before { content: ""; position: absolute; left: 0; top: 13px; bottom: 13px; width: 3px; border-radius: var(--r-pill); background: var(--accent-grad); }
.feature-tabs [role="tabpanel"] { margin-top: 0; padding: 36px; border-radius: var(--r-card); background: var(--bg-panel); color: var(--text); box-shadow: var(--shadow-float); }
.feature-tabs [role="tabpanel"] h3 { margin-top: 0; }
.setting-fragment { margin-top: 24px; padding: 18px; border: 1px solid var(--border); border-radius: var(--r-group); background: var(--bg); color: var(--text); }
.setting-line { display: flex; align-items: center; gap: 12px; padding-block: 10px; flex-wrap: wrap; font-size: 14px; }
.setting-line label { display: inline-flex; align-items: center; gap: 9px; }
.setting-line input { accent-color: var(--accent-dark); }
.toc { position: sticky; top: 16px; z-index: 8; display: flex; align-items: center; gap: 8px; overflow-x: auto; max-width: 100%; padding: 10px; margin-bottom: 32px; border: 1px solid var(--border); border-radius: var(--r-pill); background: var(--bg-panel); color: var(--text); box-shadow: var(--shadow-hair); }
.toc a { display: inline-flex; flex: none; min-height: 38px; align-items: center; padding: 6px 14px; border-radius: var(--r-pill); text-decoration: none; font-size: 14px; }
.toc a:hover, .toc a[aria-current="location"] { background: var(--bg-panel-2); color: var(--text); }
.faq-item { border-bottom: 1px solid var(--border); padding-block: 20px; }
.faq-item summary { cursor: pointer; font-size: 17px; font-weight: 600; padding-right: 12px; }
.faq-item summary::marker { color: var(--text-muted); }
.faq-item p { margin: 16px 0 0; color: var(--text-muted); }
.term-card { padding: 28px; border: 1px solid var(--border); border-radius: var(--r-card); background: var(--bg-panel); color: var(--text); box-shadow: var(--shadow-card); }
.term-card h3 { margin: 12px 0; }
.term-card p { color: var(--text-muted); margin-bottom: 0; }
.badge { display: inline-flex; align-items: center; gap: 6px; min-height: 24px; padding: 3px 10px; border-radius: var(--r-pill); background: var(--bg-panel-2); color: var(--text); font-size: 12px; font-weight: 600; max-width: 100%; overflow-wrap: anywhere; }
.badge-primary, .badge-recommended { background: var(--accent-tint); color: var(--text); }
.badge-retired { background: var(--bg-panel-2); color: var(--text-muted); }
.badge-success { background: var(--success-tint); color: var(--success-ink); }
.tag-row { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.dl-grid { list-style: none; padding: 0; margin: 36px 0 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.dl-card { display: flex; flex-direction: column; height: 100%; padding: 24px; border-radius: var(--r-card); background: var(--bg-panel); color: var(--text); border: 1px solid var(--border); box-shadow: var(--shadow-card); text-decoration: none; transition: transform .25s ease; }
.dl-card:hover { transform: translateY(-2px); }
.dl-card h3 { margin: 20px 0 10px; }
.dl-card p { font-size: 14px; color: var(--text-muted); }
.dl-card .card-link { margin-top: auto; font-size: 14px; font-weight: 600; }
.dl-ico { width: 44px; height: 44px; padding: 11px; border: 1px solid var(--border); border-radius: var(--r-group); background: var(--bg); color: var(--text); }
.client-card { padding: 32px; background: var(--bg-panel); color: var(--text); border: 1px solid var(--border); border-radius: var(--r-card); box-shadow: var(--shadow-card); }
.client-head { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.client-head h3 { margin: 0; }
.client-detail { font-size: 14px; color: var(--text-muted); }
.client-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.article-card { display: flex; flex-direction: column; align-items: flex-start; padding: 28px; background: var(--bg-panel); color: var(--text); border: 1px solid var(--border); border-radius: var(--r-card); box-shadow: var(--shadow-card); }
.article-card time { margin-top: 18px; color: var(--text-muted); font-family: var(--font-mono); font-size: 12px; }
.article-card h3 { font-size: 20px; margin-block: 12px; line-height: 1.5; }
.article-card h3 a { text-decoration: none; }
.article-card h3 a:hover { text-decoration: underline; }
.article-card p { color: var(--text-muted); font-size: 14px; }
.callout { margin: 24px 0; padding: 22px 24px; border: 1px solid var(--border); border-left: 3px solid var(--border-strong); border-radius: var(--r-group); background: var(--bg-panel-2); color: var(--text); }
.callout p:last-child { margin-bottom: 0; }
.callout-warning { border-left-color: var(--warn); }
.table-scroll { overflow-x: auto; max-width: 100%; min-width: 0; -webkit-overflow-scrolling: touch; border: 1px solid var(--border); border-radius: var(--r-group); }
.data-table { width: 100%; border-collapse: collapse; background: var(--bg-panel); color: var(--text); 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: 15px 18px; text-align: left; vertical-align: top;
  border-bottom: 1px solid var(--border); overflow-wrap: normal; word-break: normal;
}
.data-table th, .prose table th, .article-body table th { background: var(--bg-panel-2); color: var(--text); font-weight: 600; }
.data-table caption { text-align: left; padding: 16px; color: var(--text-muted); }
.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(--bg-panel); color: var(--text); }
.prose table code, .article-body table code { overflow-wrap: anywhere; }
.article-download { margin-top: 48px; padding: 30px; border: 1px solid var(--border); border-radius: var(--r-card); background: var(--bg-panel); color: var(--text); box-shadow: var(--shadow-card); }
.article-download h2 { margin-top: 0; font-size: 24px; }
.dl-fab { position: fixed; right: 24px; bottom: 24px; z-index: 30; display: inline-flex; align-items: center; gap: 12px; max-width: calc(100vw - 32px); padding: 14px 20px; border: 1px solid var(--border); border-radius: var(--r-pill); background: var(--bg-panel); color: var(--text); box-shadow: var(--shadow-menu); text-decoration: none; font-size: 14px; font-weight: 600; }
.dl-fab svg { width: 20px; height: 20px; flex: none; }
.dl-fab:hover { background: var(--bg-panel-2); color: var(--text); }
.preview-palette { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.swatch { border: 1px solid var(--border); border-radius: var(--r-group); overflow: hidden; background: var(--bg-panel); color: var(--text); }
.swatch-color { height: 76px; }
.swatch code { display: block; padding: 12px; }
.swatch-bg { background: var(--bg); }
.swatch-panel { background: var(--bg-panel); }
.swatch-panel2 { background: var(--bg-panel-2); }
.swatch-border { background: var(--border); }
.swatch-accent { background: var(--accent); }
.swatch-accent-dark { background: var(--accent-dark); }
.swatch-text { background: var(--text); }
.swatch-muted { background: var(--text-muted); }
.swatch-success { background: var(--success); }
.swatch-warn { background: var(--warn); }
.swatch-error { background: var(--error); }
.swatch-dark { background: var(--bg-dark); }
.preview-block + .preview-block { margin-top: 48px; }
@media (max-width: 1050px) {
  .win-body { grid-template-columns: 180px minmax(0, 1fr); }
  .win-aside { grid-column: 2; border-top: 1px solid var(--border); border-left: 0; }
  .win-side { grid-row: span 2; }
  .dl-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
  .feature-tabs { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .feature-tabs [role="tablist"] { flex-direction: row; align-items: center; overflow-x: auto; }
  .feature-tabs [role="tab"] { width: auto; border-radius: var(--r-pill); }
  .feature-tabs [role="tab"][aria-selected="true"]::before { display: none; }
  .feature-tabs [role="tabpanel"] { padding: 24px; }
  .preview-palette { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .stage { margin-top: 28px; }
  .win-body { grid-template-columns: minmax(0, 1fr); min-height: 0; }
  .win-side { grid-row: auto; border-right: 0; border-bottom: 1px solid var(--border); }
  .side-list { display: flex; flex-wrap: wrap; gap: 4px; }
  .side-item { font-size: 12px; min-height: 32px; padding: 5px 8px; gap: 6px; }
  .win-main { padding: 22px 16px; }
  .win-aside { grid-column: auto; padding: 22px 16px; }
  .win-bar { grid-template-columns: 52px minmax(0, 1fr) 20px; padding-inline: 14px; }
  .lights { gap: 5px; }
  .light { width: 10px; height: 10px; }
  .dl-grid { grid-template-columns: minmax(0, 1fr); }
  .preview-palette { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .client-card { padding: 24px; }
  .dl-fab { right: 16px; bottom: 16px; padding: 12px 16px; }
  .article-download { padding: 24px; }
}