/* 订阅导入工作台为静态示意，不绑定真实表单或客户端切换。 */
.stage {
  max-width: var(--w-content); margin: 22px auto 0; padding: 14px;
  border: 1px solid var(--c-border); border-radius: var(--r-card);
  background: var(--c-panel); color: var(--c-text); text-align: center;
  overflow-x: clip;
}
.stage-eyebrow { display: block; font-size: 11.5px; line-height: 15px; letter-spacing: .22em; color: var(--c-faint); }
.segmented { display: inline-flex; gap: 2px; margin: 8px 0 12px; padding: 3px; border-radius: var(--r-field); background: var(--c-panel-2); color: var(--c-muted); }
.seg { display: inline-flex; align-items: center; height: 26px; padding: 0 16px; border: 1px solid var(--c-clear); border-radius: var(--r-ctl); font-size: 13.5px; color: var(--c-muted); }
.seg.is-on { background: var(--c-white); border-color: var(--c-border); color: var(--c-text); font-weight: var(--weight-medium); box-shadow: var(--shadow-hair); }
.field {
  position: relative; height: 330px; border-radius: var(--r-field); overflow: hidden;
  display: grid; place-items: center; color: var(--c-text);
  background: radial-gradient(ellipse 46% 70% at 50% 52%, var(--c-field-mist) 0%, var(--c-clear) 72%), linear-gradient(118deg, var(--c-field-sage) 0%, var(--c-field-mist) 46%, var(--c-field-sand) 100%);
}
.field::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(var(--c-field-dot) 1px, var(--c-clear) 1.3px);
  background-size: 14px 14px;
  -webkit-mask-image: linear-gradient(90deg, var(--mask-ink) 0%, var(--c-clear) 32%, var(--c-clear) 68%, var(--mask-ink) 100%);
  mask-image: linear-gradient(90deg, var(--mask-ink) 0%, var(--c-clear) 32%, var(--c-clear) 68%, var(--mask-ink) 100%);
}
.stack { position: relative; width: min(640px, calc(100% - 40px)); min-width: 0; }
.sheet-back { position: absolute; inset: 0; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-panel-2); color: var(--c-text); transform: translate(14px, 7px) rotate(-1.5deg); }
.window { position: relative; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-white); color: var(--c-text); box-shadow: var(--shadow-window); text-align: left; overflow: hidden; }
.win-bar { display: flex; align-items: center; justify-content: space-between; height: 36px; padding: 0 12px 0 14px; border-bottom: 1px solid var(--c-border); background: var(--c-panel); color: var(--c-text); }
.win-title { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 540; color: var(--c-text); }
.win-title svg { width: 14px; height: 14px; color: var(--c-muted); }
.win-close { display: grid; place-items: center; width: 22px; height: 22px; border-radius: var(--r-ctl); color: var(--c-muted); }
.win-close svg { width: 12px; height: 12px; }
.win-body { display: grid; grid-template-columns: 168px minmax(0, 1fr); align-items: center; row-gap: 12px; column-gap: 14px; padding: 18px 22px 6px; }
.f-label { font-size: 13px; color: var(--c-text); }
.f-input { display: flex; align-items: center; height: 32px; min-width: 0; padding: 0 10px; border: 1px solid var(--c-border-strong); border-radius: var(--r-ctl); background: var(--c-white); color: var(--c-text); font-size: 13px; }
.f-input .val { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.f-input.is-mono { font-family: var(--font-mono); font-size: 12.5px; }
.f-input.is-short { width: 112px; max-width: 100%; }
.f-input .hint { color: var(--c-faint); }
.f-switch { display: flex; align-items: center; gap: 10px; height: 32px; }
.toggle { position: relative; flex-shrink: 0; width: 34px; height: 18px; border-radius: var(--r-pill); background: var(--c-accent); color: var(--c-text); }
.toggle::after { content: ""; position: absolute; top: 2px; right: 2px; width: 14px; height: 14px; border-radius: var(--r-circle); background: var(--c-white); box-shadow: var(--shadow-hair); }
.toggle.is-off { background: var(--c-border-strong); color: var(--c-text); }
.toggle.is-off::after { right: auto; left: 2px; }
.toggle-note { font-size: 12px; color: var(--c-muted); }
.win-foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; padding: 14px 22px 16px; border-top: 1px solid var(--c-border); }
.w-btn { display: inline-flex; align-items: center; height: 30px; padding: 0 18px; border-radius: var(--r-ctl); font-size: 13px; border: 1px solid var(--c-border-strong); color: var(--c-text); background: var(--c-white); }
.w-btn.is-main { background: var(--c-text); border-color: var(--c-text); color: var(--c-white); }

/* 两列功能卡：界面片段交错，正文不旋转。 */
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-top: 48px; text-align: left; }
.feature-card { min-width: 0; padding: 30px; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-panel); color: var(--c-text); }
.feature-card h3 { font-size: 30px; font-weight: 420; margin: 0 0 16px; }
.feature-card p { color: var(--c-muted); line-height: 1.8; }
.feature-field { display: grid; align-items: center; min-height: 244px; margin-top: 28px; padding: 26px; border-radius: var(--r-field); overflow: hidden; background: linear-gradient(118deg, var(--c-field-sage), var(--c-field-mist), var(--c-field-sand)); color: var(--c-text); }
.mini-ui { width: 94%; min-width: 0; padding: 18px; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-white); color: var(--c-text); box-shadow: var(--shadow-hair); font-size: 13px; }
.feature-card:nth-child(even) .mini-ui { justify-self: end; }
.mini-ui pre { margin: 12px 0 0; padding: 12px; background: var(--c-white); color: var(--c-text); }
.mini-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-block: 10px; border-bottom: 1px solid var(--c-border); }
.mini-row:last-child { border-bottom: 0; }
.mock-select { padding: 8px 12px; margin-top: 12px; border: 1px solid var(--c-border-strong); border-radius: var(--r-ctl); background: var(--c-white); color: var(--c-text); }
.mock-menu { list-style: none; padding: 4px; margin: 12px 0 0; border: 1px solid var(--c-border); border-radius: var(--r-ctl); background: var(--c-white); color: var(--c-text); }
.mock-menu li { padding: 7px 10px; }
.mock-menu .selected { background: var(--c-panel-2); color: var(--c-text); }

/* 真实交互 tab 与装置内静态 segmented 分开。 */
.tabs { min-width: 0; }
.tab-list, [role="tablist"] { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 24px; }
.tab-list { padding: 5px; border: 1px solid var(--c-border); border-radius: var(--r-field); background: var(--c-panel); color: var(--c-text); }
.tab, [role="tab"] {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 9px 18px; border: 1px solid var(--c-clear);
  border-radius: var(--r-ctl); background: var(--c-clear); color: var(--c-muted);
  font-size: 14px;
}
.tab:hover { background: var(--c-panel-2); color: var(--c-text); }
.tab[aria-selected="true"] { border-color: var(--c-border); background: var(--c-white); color: var(--c-accent-dark); box-shadow: var(--shadow-hair); }
.tab-panel { min-width: 0; outline-offset: 5px; }
.tab-panel h3 { margin-top: 0; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px; margin-block: 24px; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-panel); color: var(--c-text); }
.toc a { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 12px; border-radius: var(--r-ctl); font-size: 14px; }
.toc a:hover, .toc a[aria-current="location"] { background: var(--c-white); color: var(--c-accent-dark); }
.toc.is-sticky { position: sticky; top: 16px; z-index: 10; }

/* 原生 details，不需要脚本也能展开。 */
.faq-item { border: 1px solid var(--c-border); border-radius: var(--r-card); margin-block: 12px; background: var(--c-panel); color: var(--c-text); }
.faq-item summary { position: relative; padding: 18px 52px 18px 22px; cursor: pointer; font-weight: var(--weight-medium); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 22px; top: 18px; font-size: 20px; line-height: 24px; color: var(--c-muted); }
.faq-item[open] summary::after { content: "−"; }
.faq-answer { padding: 0 22px 20px; color: var(--c-muted); }
.faq-answer p:last-child { margin-bottom: 0; }
.term-card { min-width: 0; padding: 24px; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-panel); color: var(--c-text); }
.term-card h3 { margin: 14px 0 12px; font-size: 24px; }
.term-card p { color: var(--c-muted); }
.term-card p:last-child { margin-bottom: 0; }
.term-category { display: inline-block; font-size: 12px; color: var(--c-muted); }
.client-card { min-width: 0; padding: 28px; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-panel); color: var(--c-text); }
.client-head { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 16px; margin-bottom: 18px; }
.client-head h3 { margin: 0 0 6px; font-size: 28px; }
.client-head p { margin: 0; color: var(--c-muted); }
.client-downloads { display: flex; flex-wrap: wrap; gap: 12px; margin-block: 20px; }
.client-note { font-size: 13px; color: var(--c-muted); }
.badge {
  display: inline-flex; align-items: center; gap: 6px; max-width: 100%;
  padding: 4px 9px; border: 1px solid var(--c-border); border-radius: var(--r-ctl);
  background: var(--c-panel-2); color: var(--c-muted); font-size: 12px;
  line-height: 1.5; overflow-wrap: anywhere;
}
.badge-first { border-color: var(--c-accent); background: var(--c-bg); color: var(--c-accent-dark); }
.badge-recommended { background: var(--c-white); color: var(--c-text); }
.badge-retired { background: var(--c-panel-2); color: var(--c-muted); }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { display: inline-block; max-width: 100%; padding: 3px 9px; border-radius: var(--r-pill); border: 1px solid var(--c-border); background: var(--c-bg); color: var(--c-muted); font-size: 12px; overflow-wrap: anywhere; }
.article-card { min-width: 0; padding: 26px; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-panel); color: var(--c-text); }
.article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 12px; color: var(--c-muted); }
.article-card h3 { margin: 18px 0 12px; font-size: 23px; line-height: 1.5; }
.article-card h3 a:hover { text-decoration: underline; text-underline-offset: 4px; }
.article-card p { color: var(--c-muted); }
.article-more { display: inline-flex; align-items: center; min-height: 44px; gap: 8px; font-size: 14px; color: var(--c-accent-dark); }
.callout {
  margin: 24px 0; padding: 20px 24px; border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-accent); border-radius: var(--r-ctl);
  background: var(--c-panel); color: var(--c-text);
}
.callout p:last-child { margin-bottom: 0; }
.callout-title { display: block; margin-bottom: 8px; font-weight: var(--weight-strong); }
.callout-success { border-left-color: var(--c-success); }
.callout-warn { border-left-color: var(--c-warn); }
.callout-error { border-left-color: var(--c-error); }
.article-download { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; margin-block: 36px; padding: 26px; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-panel); color: var(--c-text); }
.article-download > div { flex: 1 1 260px; min-width: 0; }
.article-download h2 { margin: 0 0 10px; font-size: 24px; }
.article-download p { margin: 0; color: var(--c-muted); }
.dl-fab {
  position: fixed; right: var(--gutter); bottom: max(20px, env(safe-area-inset-bottom));
  z-index: var(--z-fab); display: inline-flex; align-items: center; gap: 12px;
  max-width: calc(100% - var(--gutter) * 2); min-height: 56px; padding: 12px 18px;
  border: 1px solid var(--c-border-strong); border-radius: var(--r-card);
  background: var(--c-bg); color: var(--c-text); box-shadow: var(--shadow-hair);
}
.dl-fab > svg { width: 20px; height: 20px; color: var(--c-accent-dark); }
.dl-fab strong { display: block; font-size: 14px; }
.dl-fab small { display: block; font-size: 12px; color: var(--c-muted); }
.dl-fab:hover { border-color: var(--c-accent); background: var(--c-panel); color: var(--c-text); }
.has-article-fab { padding-bottom: 100px; }

/* 横滑优先：后代裸表格也兜住，单元格不进行逐字破坏性折行。 */
.table-scroll { max-width: 100%; min-width: 0; overflow-x: auto; margin-block: 24px; -webkit-overflow-scrolling: touch; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-bg); color: var(--c-text); }
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th, .data-table td,
.prose table th, .prose table td {
  min-width: 7em; padding: 14px 16px; text-align: left; vertical-align: top;
  border-bottom: 1px solid var(--c-border); overflow-wrap: normal; word-break: normal;
}
.data-table th, .prose table th { background: var(--c-panel); color: var(--c-text); font-weight: var(--weight-medium); }
.data-table td, .prose table td { background: var(--c-bg); color: var(--c-text); }
.data-table tr:last-child td { border-bottom: 0; }
.prose table {
  display: block; overflow-x: auto; -webkit-overflow-scrolling: touch;
  max-width: 100%; min-width: 0; border-collapse: collapse; margin-block: 24px;
}
.prose table code, .data-table code { overflow-wrap: anywhere; }

/* 设计预览家具：所有色值仍只在 base.css :root 出现。 */
.preview-block { padding-top: 64px; padding-bottom: 64px; border-top: 1px solid var(--c-border); }
.preview-block > h2 { margin-top: 0; }
.swatch-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.swatch { min-width: 0; padding: 12px; border: 1px solid var(--c-border); border-radius: var(--r-card); background: var(--c-bg); color: var(--c-text); }
.swatch code { display: block; margin-top: 10px; }
.swatch-paint { display: block; height: 56px; border: 1px solid var(--c-border); border-radius: var(--r-ctl); }
.paint-bg { background: var(--c-bg); }
.paint-panel { background: var(--c-panel); }
.paint-panel-2 { background: var(--c-panel-2); }
.paint-border { background: var(--c-border); }
.paint-border-strong { background: var(--c-border-strong); }
.paint-accent { background: var(--c-accent); }
.paint-accent-dark { background: var(--c-accent-dark); }
.paint-text { background: var(--c-text); }
.paint-muted { background: var(--c-muted); }
.paint-faint { background: var(--c-faint); }
.paint-success { background: var(--c-success); }
.paint-warn { background: var(--c-warn); }
.paint-error { background: var(--c-error); }
.paint-white { background: var(--c-white); }
.paint-on-accent { background: var(--c-on-accent); }
.paint-sage { background: var(--c-field-sage); }
.paint-mist { background: var(--c-field-mist); }
.paint-sand { background: var(--c-field-sand); }
.paint-dot { background: var(--c-field-dot); }
.paint-ring { background: var(--c-ring); }
.paint-veil { background: var(--c-veil); }
.paint-clear { background: var(--c-clear); }
.paint-mask { background: var(--mask-ink); }
.preview-state { display: grid; gap: 10px; justify-items: start; }
.preview-states { display: flex; flex-wrap: wrap; gap: 24px; }
.preview-static .primary-nav { display: block; }
.preview-static .masthead-inner { max-width: 1240px; }
.preview-static .header-tools { margin-left: 0; }
.preview-static .language-box summary { cursor: pointer; list-style: none; }
.preview-static .language-box summary::-webkit-details-marker { display: none; }

@media (max-width: 920px) {
  .swatch-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .preview-static { height: auto; }
  .preview-static .masthead-inner { flex-wrap: wrap; padding: 12px 20px; gap: 10px; }
  .preview-static .primary-nav { order: 3; flex-basis: 100%; overflow-x: auto; }
  .preview-static .nav-list { width: max-content; }
  .preview-static .header-tools { margin-left: auto; }
}
@media (max-width: 640px) {
  .field { height: auto; padding: 28px 0; }
  .win-body { grid-template-columns: minmax(0, 1fr); row-gap: 6px; padding-inline: 16px; }
  .f-label { margin-top: 6px; }
  .f-input { height: auto; min-height: 32px; padding-block: 5px; }
  .f-input .val { overflow: visible; white-space: normal; text-overflow: clip; overflow-wrap: anywhere; }
  .seg { padding-inline: 10px; font-size: 12px; }
  .feature-grid { grid-template-columns: minmax(0, 1fr); }
  .feature-card { padding: 22px; }
  .feature-card h3 { font-size: 26px; }
  .feature-field { padding: 18px; min-height: 220px; }
  .mini-ui { width: 100%; padding: 14px; }
  .swatch-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .client-card { padding: 22px; }
  .client-downloads { flex-direction: column; }
  .dl-fab { padding: 10px 14px; gap: 10px; }
  .dl-fab small { display: none; }
  .preview-block { padding-top: 48px; padding-bottom: 48px; }
}