/* 首屏静态窗口：装饰内容不是可操作的客户端。 */
.stage { position: relative; margin-top: 36px; padding: 0 32px 96px; overflow-x: clip; }
.stage::before { content: ""; position: absolute; inset: 340px 0 0; background: var(--c-panel); border-top: 1px solid var(--c-border); }
.win { position: relative; z-index: 1; max-width: var(--w-content); margin-inline: auto; background: var(--win-bg); color: var(--win-text); border: 1px solid var(--win-edge); border-radius: var(--r-card); box-shadow: var(--shadow-card), var(--shadow-card-inset); overflow: hidden; text-align: left; }
.win p { margin: 0; }
.win__bar { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; height: 46px; padding-inline: 20px; border-bottom: 1px solid var(--win-line); }
.win__dots { display: flex; gap: 8px; }
.win__dots i { width: 11px; height: 11px; border-radius: var(--r-circle); background: var(--win-dot); flex-shrink: 0; }
.win__name { font-size: 13px; font-weight: var(--weight-semibold); letter-spacing: 0.01em; color: var(--win-text-2); }
.win__body { display: grid; grid-template-columns: 240px minmax(0, 1fr); }
.side { background: var(--win-panel); color: var(--win-text-2); border-right: 1px solid var(--win-line); padding: 18px 14px; }
.side__label { padding: 0 12px 10px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--win-muted); }
.side__list { margin: 0; padding: 0; list-style: none; display: grid; gap: 2px; }
.side__item { display: flex; align-items: center; gap: 12px; min-height: 40px; padding: 8px 12px; border-radius: var(--r-item); font-size: var(--size-small); color: var(--win-muted); }
.side__item svg { width: 16px; height: 16px; flex-shrink: 0; }
.side__item.is-current { background: var(--win-raise); color: var(--win-text); font-weight: var(--weight-semibold); box-shadow: inset 0 0 0 1px var(--win-line); }
.win-main { padding: 22px 28px; background: linear-gradient(180deg, var(--win-bg-hi) 0%, var(--win-bg) 260px); color: var(--win-text); min-width: 0; }
.sec-head { display: flex; align-items: center; gap: 10px; min-height: 22px; margin-bottom: 14px; }
.sec-title { font-size: 15px; font-weight: var(--weight-bold); letter-spacing: -0.005em; color: var(--win-text); }
.lamp { width: 9px; height: 9px; border-radius: var(--r-circle); background: var(--c-accent); box-shadow: 0 0 0 4px var(--accent-halo), 0 0 14px var(--accent-glow); }
.sec-tools { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; min-height: 28px; padding-inline: 12px; border: 1px solid var(--win-line); border-radius: var(--r-chip); background: var(--win-raise); color: var(--win-text-2); font-size: 12.5px; }
.sec-tools svg { width: 14px; height: 14px; color: var(--win-muted); }
.opts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); background: var(--win-panel); color: var(--win-text-2); border: 1px solid var(--win-line); border-radius: var(--r-panel); overflow: hidden; }
.opt { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 42px; padding: 7px 18px; border-top: 1px solid var(--win-line); font-size: var(--size-small); }
.opt:nth-child(-n+2) { border-top: 0; }
.opt:nth-child(odd) { border-right: 1px solid var(--win-line); }
.sw { position: relative; width: 36px; height: 20px; flex-shrink: 0; border-radius: var(--r-pill); background: var(--win-track); }
.sw::after { content: ""; position: absolute; top: 3px; left: 3px; width: 14px; height: 14px; border-radius: var(--r-circle); background: var(--win-knob-off); }
.sw--on { background: var(--c-accent); }
.sw--on::after { transform: translateX(16px); background: var(--c-on-ink); }
.sel { display: inline-flex; align-items: center; gap: 8px; min-height: 28px; padding: 3px 9px 3px 12px; border: 1px solid var(--win-line); border-radius: var(--r-chip); background: var(--win-raise); color: var(--win-text); font-size: 13px; flex-shrink: 0; }
.sel svg { width: 14px; height: 14px; color: var(--win-muted); }
.sel--mono { font-family: var(--font-mono); font-size: 12.5px; }
.server-list { margin-top: 22px; }
.server-list .sec-head { margin-bottom: 12px; min-height: 30px; }
.tbl { border: 1px solid var(--win-line); border-radius: var(--r-table); overflow: hidden; }
.tbl__head { display: grid; grid-template-columns: 100px 1.3fr 1.6fr 90px 1.1fr; align-items: center; height: 38px; padding-inline: 18px; background: var(--win-raise); color: var(--win-muted); border-bottom: 1px solid var(--win-line); font-size: var(--size-fine); letter-spacing: 0.02em; }
.tbl__body { height: 190px; padding: 12px; background: var(--win-panel); color: var(--win-text-2); }
.tbl__empty { height: 100%; display: flex; align-items: flex-start; justify-content: center; gap: 10px; padding: 22px 12px 12px; border: 1px dashed var(--win-line); border-radius: var(--r-item); font-size: 13.5px; color: var(--win-muted); }
.tbl__empty svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }
.win__status { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; min-height: 38px; padding: 8px 20px; border-top: 1px solid var(--win-line); background: var(--win-panel); color: var(--win-muted); font-family: var(--font-mono); font-size: var(--size-fine); }
.win__status b { font-weight: var(--weight-medium); color: var(--win-text-2); }
.win__status .dot { color: var(--win-muted); }

/* 通用 tab。每组必须拥有独立的 data-tabs 根元素。 */
.tab-list, [role="tablist"].tab-list { display: flex; align-items: center; gap: 8px; max-width: 100%; overflow-x: auto; padding: 4px; scrollbar-width: thin; }
.tab-button { position: relative; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; min-height: 44px; padding: 10px 20px; border: 1px solid var(--c-border); border-radius: var(--r-pill); background: var(--c-bg); color: var(--c-muted); font-weight: var(--weight-medium); white-space: nowrap; }
.tab-button:hover { border-color: var(--c-text); color: var(--c-text); }
.tab-button[aria-selected="true"] { background: var(--c-text); color: var(--c-on-ink); border-color: var(--c-text); }
.tab-panel { min-width: 0; margin-top: 24px; }
.settings-tabs { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px; align-items: start; }
.settings-tabs > .tab-list { display: flex; flex-direction: column; align-items: stretch; gap: 8px; overflow: visible; padding: 0; }
.settings-tabs > .tab-list .tab-button { display: flex; justify-content: flex-start; border: 0; border-radius: 0; border-left: 3px solid var(--c-bg); padding: 14px 20px; background: var(--c-bg); color: var(--c-muted); white-space: normal; text-align: left; }
.settings-tabs > .tab-list .tab-button[aria-selected="true"] { border-left-color: var(--c-accent); color: var(--c-text); font-weight: var(--weight-bold); }
.settings-tabs .tab-panel { margin-top: 0; }
.settings-tabs .panel { min-height: 400px; }
.settings-tabs pre { margin: 24px 0 0; }
.toc { position: sticky; top: 0; z-index: 20; display: flex; gap: 8px; max-width: 100%; padding: 12px; overflow-x: auto; overscroll-behavior-x: contain; border: 1px solid var(--c-border); border-radius: var(--r-panel); background: var(--c-bg); color: var(--c-text); }
.toc a { display: inline-flex; align-items: center; flex-shrink: 0; min-height: 44px; padding: 8px 16px; border-radius: var(--r-pill); text-decoration: none; color: var(--c-muted); white-space: nowrap; }
.toc a:hover, .toc a[aria-current="location"] { background: var(--c-panel); color: var(--c-text); }
.toc ~ section[id] { scroll-margin-top: 100px; }

.faq-item { border-bottom: 1px solid var(--c-border); }
.faq-item summary { position: relative; padding: 24px 40px 24px 0; font-weight: var(--weight-semibold); cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 8px; top: 24px; font-family: var(--font-mono); color: var(--c-muted); }
.faq-item[open] summary::after { content: "−"; }
.faq-item__answer { max-width: 800px; padding-bottom: 24px; color: var(--c-muted); }
.faq-item__answer > :last-child { margin-bottom: 0; }
.term-card { border-top: 2px solid var(--c-text); border-radius: 0; padding: 28px 0; }
.term-card__name { margin: 0 0 8px; font-size: var(--size-h3); font-weight: var(--weight-bold); }
.term-card__family, .article-card__meta { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; color: var(--c-muted); font-size: var(--size-small); }
.term-card p { color: var(--c-muted); }
.client-card__head { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin-bottom: 24px; }
.client-card__icon { width: 56px; height: 56px; flex-shrink: 0; }
.client-card__head h3 { margin: 0; }
.client-card__version { font-family: var(--font-mono); font-size: var(--size-small); color: var(--c-muted); }
.client-card__actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-block: 24px; }
.client-card__notes { color: var(--c-muted); font-size: var(--size-small); }
.badge-row { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 8px; }
.badge { display: inline-flex; align-items: center; gap: 6px; max-width: 100%; padding: 4px 10px; border: 1px solid var(--c-border); border-radius: var(--r-pill); background: var(--c-bg); color: var(--c-muted); font-size: var(--size-fine); font-weight: var(--weight-medium); overflow-wrap: anywhere; }
.badge--first { background: var(--c-text); color: var(--c-on-ink); border-color: var(--c-text); }
.badge--recommended { background: var(--c-panel); color: var(--c-text); }
.badge--retired { background: var(--c-panel); color: var(--c-muted); border-style: dashed; }
.badge--dynamic { white-space: normal; overflow-wrap: anywhere; }
.article-card { display: flex; flex-direction: column; }
.article-card h3 a { text-decoration: none; }
.article-card h3 a:hover { text-decoration: underline; }
.article-card p { color: var(--c-muted); }
.article-card__link { align-self: flex-start; margin-top: auto; padding-top: 16px; text-decoration: none; font-weight: var(--weight-semibold); }
.callout { margin-block: 28px; padding: 24px 28px; border: 1px solid var(--c-border); border-left: 3px solid var(--c-text); border-radius: var(--r-item); background: var(--c-panel); color: var(--c-text); }
.callout p:last-child { margin-bottom: 0; }
.callout--warning { border-left-color: var(--c-warn); }
.callout--error { border-left-color: var(--c-error); }
.download-tail { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px; margin-top: 64px; }
.download-tail__copy { flex: 1 1 280px; min-width: 0; }
.download-tail h2 { font-size: var(--size-h3); margin-bottom: 8px; }
.download-tail p { margin: 0; color: var(--c-muted); }

/* 横滑只发生在表格自身或外包容器，不挤压单元格。 */
.table-scroll { max-width: 100%; min-width: 0; overflow-x: auto; overscroll-behavior-x: contain; -webkit-overflow-scrolling: touch; border: 1px solid var(--c-border); border-radius: var(--r-table); }
.data-table { width: 100%; border-collapse: collapse; text-align: left; }
.data-table th, .data-table td,
.prose table th, .prose table td,
.document-body table th, .document-body table td {
  min-width: 7em;
  padding: 16px 20px;
  border-bottom: 1px solid var(--c-border);
  overflow-wrap: normal;
  word-break: normal;
  vertical-align: top;
}
.data-table th, .prose table th, .document-body table th { background: var(--c-panel); color: var(--c-text); font-weight: var(--weight-semibold); }
.data-table td, .prose table td, .document-body table td { background: var(--c-bg); color: var(--c-text); }
.data-table tr:last-child td { border-bottom: 0; }
.prose table, .document-body table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; min-width: 0; border-collapse: collapse; text-align: left; }
.prose table code, .document-body table code, .data-table code { overflow-wrap: anywhere; white-space: normal; }
.dl-fab { position: fixed; right: 20px; bottom: 22px; z-index: 40; display: inline-flex; align-items: center; gap: 8px; min-height: 42px; padding: 10px 16px 10px 14px; border-radius: var(--r-pill); background: var(--c-text); color: var(--c-on-ink); font-size: 13.5px; font-weight: var(--weight-semibold); line-height: 1.4; text-decoration: none; box-shadow: var(--shadow-fab); transition: box-shadow var(--ease); }
.dl-fab svg { width: 16px; height: 16px; flex-shrink: 0; }
.dl-fab:hover { box-shadow: var(--shadow-fab), 0 0 0 2px var(--c-bg), 0 0 0 4px var(--c-accent); }

/* 设计预览专用；不改变正式页面的版心。 */
.specimen { padding-top: 80px; padding-bottom: 40px; }
.specimen__label { font-family: var(--font-mono); font-size: var(--size-fine); color: var(--c-muted); margin-bottom: 12px; }
.swatch-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.swatch { margin: 0; min-width: 0; }
.swatch__paint { display: block; height: 72px; border: 1px solid var(--c-border); border-radius: var(--r-item); background: var(--swatch-color); }
.swatch figcaption { padding-top: 8px; font-family: var(--font-mono); font-size: var(--size-fine); overflow-wrap: anywhere; }
.swatch--bg { --swatch-color: var(--c-bg); }
.swatch--panel { --swatch-color: var(--c-panel); }
.swatch--panel2 { --swatch-color: var(--c-panel-2); }
.swatch--border { --swatch-color: var(--c-border); }
.swatch--accent { --swatch-color: var(--c-accent); }
.swatch--accent-dark { --swatch-color: var(--c-accent-dark); }
.swatch--text { --swatch-color: var(--c-text); }
.swatch--muted { --swatch-color: var(--c-muted); }
.swatch--success { --swatch-color: var(--c-success); }
.swatch--warn { --swatch-color: var(--c-warn); }
.swatch--error { --swatch-color: var(--c-error); }
.swatch--soft { --swatch-color: var(--c-ink-soft); }
.swatch--on { --swatch-color: var(--c-on-ink); }
.swatch--win { --swatch-color: var(--win-bg); }
.swatch--hi { --swatch-color: var(--win-bg-hi); }
.swatch--win-panel { --swatch-color: var(--win-panel); }
.swatch--raise { --swatch-color: var(--win-raise); }
.swatch--line { --swatch-color: var(--win-line); }
.swatch--edge { --swatch-color: var(--win-edge); }
.swatch--win-text { --swatch-color: var(--win-text); }
.swatch--win-text2 { --swatch-color: var(--win-text-2); }
.swatch--win-muted { --swatch-color: var(--win-muted); }
.swatch--dim { --swatch-color: var(--win-dim); }
.swatch--track { --swatch-color: var(--win-track); }
.swatch--dot { --swatch-color: var(--win-dot); }
.swatch--knob { --swatch-color: var(--win-knob-off); }
.swatch--halo { --swatch-color: var(--accent-halo); }
.swatch--glow { --swatch-color: var(--accent-glow); }
.swatch--focus { --swatch-color: var(--focus-ring); }
.swatch--veil { --swatch-color: var(--veil); }
.button-specimens { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; }
.platform-panel { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.platform-panel a { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 88px; padding: 24px; border: 1px solid var(--win-line); border-radius: var(--r-panel); background: var(--win-panel); color: var(--win-text); text-decoration: none; }
.platform-panel a:hover { border-color: var(--win-text-2); }
@media (max-width: 1080px) {
  .win__body { grid-template-columns: 200px minmax(0, 1fr); }
  .tbl__head { grid-template-columns: 80px 1.2fr 1.4fr 70px 1fr; }
}
@media (max-width: 760px) {
  .stage { padding: 0 14px 64px; }
  .stage::before { top: 420px; }
  .win { border-radius: var(--r-mobile-card); }
  .win__body { grid-template-columns: minmax(0, 1fr); }
  .side { display: none; }
  .win-main { padding: 18px 16px; }
  .opts { grid-template-columns: minmax(0, 1fr); }
  .opt:nth-child(odd) { border-right: 0; }
  .opt:nth-child(2) { border-top: 1px solid var(--win-line); }
  .tbl__head { grid-template-columns: 70px 1fr 1fr; }
  .tbl__head span:nth-child(n+4) { display: none; }
  .win__status { padding: 8px 16px; }
  .settings-tabs { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .settings-tabs > .tab-list { flex-direction: row; align-items: center; overflow-x: auto; padding: 4px; }
  .settings-tabs > .tab-list .tab-button { border: 1px solid var(--c-border); border-radius: var(--r-pill); white-space: nowrap; }
  .settings-tabs > .tab-list .tab-button[aria-selected="true"] { border-color: var(--c-text); background: var(--c-text); color: var(--c-on-ink); }
  .settings-tabs .panel { min-height: 0; }
}
@media (max-width: 640px) {
  .swatch-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .platform-panel { grid-template-columns: minmax(0, 1fr); }
  .platform-panel a { padding: 20px; }
  .dl-fab { right: 16px; bottom: max(16px, env(safe-area-inset-bottom)); }
  .callout { padding: 20px; }
  .toc { border-radius: var(--r-item); }
}