/* 首屏：已确认的静态上手看板。 */
.hero {
  min-height: calc(100svh - var(--nav-h) - var(--peek));
  display: grid;
  align-content: center;
  padding-top: 36px;
}
.hero-copy { position: relative; isolation: isolate; text-align: center; padding-inline: 24px; }
.hero-copy::before {
  content: "";
  position: absolute;
  z-index: -1;
  left: 50%;
  top: 70px;
  width: 860px;
  height: 270px;
  transform: translateX(-50%);
  background-image: linear-gradient(var(--bg-panel-2) 1px,var(--clear) 1px),linear-gradient(90deg,var(--bg-panel-2) 1px,var(--clear) 1px);
  background-size: 44px 44px;
  background-position: center;
  -webkit-mask-image: radial-gradient(closest-side,var(--text) 35%,var(--clear) 100%);
  mask-image: radial-gradient(closest-side,var(--text) 35%,var(--clear) 100%);
}
.hero-title { margin: 0; font-size: clamp(30px,3.4vw,48px); font-weight: 900; line-height: 1.12; letter-spacing: -.02em; }
.hero-title .line { display: block; }
.hero-title .kw { color: var(--accent-2); }
.hero-lead { max-width: 860px; margin: 16px auto 0; font-size: 17px; line-height: 1.6; color: var(--text-muted); }
.hero-lead strong { color: var(--text); font-weight: 650; }
.hero-cta { margin-top: 28px; display: flex; justify-content: center; align-items: center; gap: 28px; }
.hero-cta .btn-primary { height: 50px; padding: 0 28px 0 24px; }
.platforms { list-style: none; margin: 24px 0 0; padding: 0; display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; }
.platforms a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 34px;
  padding: 6px 15px 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--bg);
  color: var(--text-muted);
  font-size: 13.5px;
  font-weight: 600;
}
.platforms a svg { width: 15px; height: 15px; color: var(--text); flex-shrink: 0; }
.platforms a:hover, .platforms a:hover svg { color: var(--accent); border-color: var(--accent); }
.stage {
  position: relative;
  width: min(80vw,1200px);
  height: var(--stage-h);
  margin: 32px auto 0;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to bottom,var(--text) calc(100% - 44px),var(--clear));
  mask-image: linear-gradient(to bottom,var(--text) calc(100% - 44px),var(--clear));
}
.board { height: 312px; background: var(--bg-panel); color: var(--text); border-radius: var(--r-board); overflow: hidden; }
.board__chrome { height: 42px; display: grid; grid-template-columns: 80px 1fr 80px; align-items: center; padding-inline: 18px; border-bottom: 1px solid var(--bg-panel-2); }
.board__dots { display: flex; gap: 7px; }
.board__dots span { width: 10px; height: 10px; border-radius: var(--r-round); background: var(--dot); color: var(--text); flex-shrink: 0; }
.board__title { text-align: center; font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); letter-spacing: .01em; }
.board__cols { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; padding: 18px 24px 0; }
.col__head { min-height: 24px; margin-bottom: 12px; display: flex; align-items: center; }
.col-tag { display: inline-flex; align-items: center; gap: 7px; min-height: 24px; padding: 2px 10px; border: 1px solid var(--border-strong); border-radius: var(--r-pill); background: var(--bg); color: var(--text); font-size: 12.5px; font-weight: 600; }
.state { width: 8px; height: 8px; border-radius: var(--r-round); flex-shrink: 0; }
.state--todo { border: 1.5px solid var(--text-faint); }
.state--doing { background: var(--accent); color: var(--bg); }
.state--done { background: var(--success); color: var(--bg); }
.col__list { display: grid; gap: 10px; list-style: none; margin: 0; padding: 0; }
.task {
  min-height: 72px;
  padding: 12px 14px;
  background: var(--bg);
  color: var(--text);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 4px;
}
.task__title { font-size: 13.5px; font-weight: 500; line-height: 20px; }
.task__meta { display: flex; align-items: center; justify-content: space-between; min-height: 18px; }
.task__id { display: inline-flex; align-items: center; gap: 7px; font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: .04em; color: var(--text-muted); }
.task__id svg { width: 14px; height: 14px; color: var(--accent); flex-shrink: 0; }
.cat-badge { width: 18px; height: 18px; display: block; flex-shrink: 0; }
.set-card { position: absolute; background: var(--bg); color: var(--text); border-radius: var(--r-float); padding: 18px 20px; box-shadow: var(--shadow-float); }
.set-card--left { left: 5%; top: 276px; width: 330px; transform: rotate(-2deg); z-index: 4; }
.set-card--center { left: 50%; top: 262px; width: 400px; margin-left: -200px; padding: 20px 22px; box-shadow: var(--shadow-lift); z-index: 5; }
.set-card--right { right: 5%; top: 288px; width: 330px; transform: rotate(1.5deg); box-shadow: var(--shadow-soft); opacity: .9; z-index: 2; }
.set-card__path { font-family: var(--font-mono); font-size: 11px; line-height: 16px; letter-spacing: .02em; color: var(--text-muted); }
.set-card__row { margin-top: 12px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.set-card__title { font-family: var(--font-display); font-weight: 750; font-size: 16px; line-height: 22px; letter-spacing: -.01em; }
.set-card--center .set-card__title { font-size: 18px; line-height: 24px; }
.set-card--right .set-card__title { color: var(--text-muted); }
.set-card__sub { margin-top: 6px; font-size: 12.5px; line-height: 18px; color: var(--text-muted); }
.set-card__note { margin-top: 8px; display: flex; align-items: center; gap: 7px; font-size: 12.5px; line-height: 18px; color: var(--text-muted); }
.set-card__note svg { width: 14px; height: 14px; color: var(--warn); flex-shrink: 0; }
.toggle { position: relative; width: 38px; height: 22px; border-radius: var(--r-pill); background: var(--accent); color: var(--bg); flex-shrink: 0; }
.toggle::after { content: ""; position: absolute; top: 3px; left: 19px; width: 16px; height: 16px; border-radius: var(--r-round); background: var(--bg); color: var(--text); box-shadow: var(--shadow-knob); }
.code-line { margin-top: 12px; padding: 7px 11px; border-radius: var(--r-chip); background: var(--bg-panel); color: var(--text); font-family: var(--font-mono); font-size: 12px; line-height: 18px; overflow-wrap: anywhere; }
.code-line .k { color: var(--accent); }
.code-line .c, .code-line .p { color: var(--text-muted); }
.code-line .p { margin-right: 6px; }

.quick { margin-inline: 24px; background: var(--bg-panel); color: var(--text); border-radius: var(--r-board) var(--r-board) 0 0; padding: 88px 24px 104px; }
.quick__inner { max-width: 1180px; margin-inline: auto; }
.quick__kicker { font-family: var(--font-display); font-size: 18px; }
.quick__kicker b { font-weight: 900; }
.quick__kicker span { font-weight: 400; color: var(--text-muted); }
.quick__title { margin: 10px 0 0; font-size: 34px; line-height: 1.2; font-weight: 900; }
.quick__grid { margin-top: 40px; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.quick-card { background: var(--bg); color: var(--text); border-radius: var(--r-panel); padding: 28px 28px 30px; box-shadow: var(--shadow-soft); }
.quick-card__tag { display: inline-flex; align-items: center; min-height: 24px; padding: 2px 10px; border-radius: var(--r-pill); background: var(--accent-soft); color: var(--accent); font-family: var(--font-mono); font-size: 11.5px; font-weight: 500; }
.quick-card__title { margin: 16px 0 0; font-size: 20px; font-weight: 800; }
.quick-card__text { margin-top: 8px; font-size: 15px; color: var(--text-muted); }
.quick__more { margin-top: 32px; }

/* 胶囊切换台；JS 不自动轮播。 */
.tabs { min-width: 0; }
.tablist, [role="tablist"].segments {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto 48px;
  padding: 6px;
  border-radius: var(--r-pill);
  background: var(--bg-panel);
  color: var(--text);
}
[role="tab"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  border: 0;
  border-radius: var(--r-pill);
  background: var(--clear);
  color: var(--text-muted);
  font-weight: 700;
}
[role="tab"]:hover { color: var(--text); }
[role="tab"][aria-selected="true"] { background: var(--text); color: var(--bg); }
[role="tabpanel"] { min-width: 0; }
[role="tabpanel"].is-active { animation: panel-in var(--fade) var(--ease); }
@keyframes panel-in { from { opacity: 0; } to { opacity: 1; } }
.feature-detail { display: grid; grid-template-columns: minmax(0,1.22fr) minmax(0,1fr); gap: 64px; align-items: center; }
.feature-kicker { font-size: 18px; margin-bottom: 24px; }
.feature-kicker span { color: var(--text-muted); }
.feature-detail h3 { font-size: clamp(28px,3vw,40px); font-weight: 900; margin: 0 0 24px; }
.feature-detail p { color: var(--text-muted); }
.setting-keys { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px 12px; margin-top: 28px; font-size: var(--text-sm); }
.setting-keys code { color: var(--text); }
.feature-visual { position: relative; isolation: isolate; padding: 44px 24px 64px; }
.feature-visual::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 30px 8px 42px;
  background: var(--accent);
  color: var(--bg);
  transform: rotate(-3deg) skewX(-5deg);
  border-radius: var(--r-panel);
}
.feature-demo { position: relative; background: var(--bg); color: var(--text); padding: 28px; border-radius: var(--r-panel); box-shadow: var(--shadow-lift); }
.feature-demo pre { margin-bottom: 0; }
.hand-arrow { position: absolute; right: 12px; bottom: 4px; width: 150px; height: 85px; color: var(--accent-2); pointer-events: none; }
.hand-note { position: absolute; right: 38px; bottom: 4px; font-size: var(--text-sm); font-style: italic; color: var(--text); }
.toc {
  position: sticky;
  top: 16px;
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px;
  margin-bottom: 40px;
  border: 1px solid var(--border);
  border-radius: var(--r-panel);
  background: var(--bg);
  color: var(--text);
  box-shadow: var(--shadow-soft);
}
.toc a { display: inline-flex; justify-content: center; align-items: center; min-height: 44px; padding: 8px 16px; border-radius: var(--r-pill); color: var(--text-muted); }
.toc a:hover, .toc a[aria-current] { background: var(--accent-soft); color: var(--accent); }
.toc--flow { position: static; }

.faq-item { border-bottom: 1px solid var(--border); background: var(--bg); color: var(--text); }
.faq-item summary { position: relative; padding: 24px 44px 24px 0; cursor: pointer; list-style: none; font-weight: 700; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 8px; top: 24px; color: var(--accent); }
.faq-item[open] summary::after { content: "−"; }
.faq-item__answer { padding-bottom: 24px; color: var(--text-muted); }
.faq-item__answer p + p { margin-top: 16px; }
.term-card { padding: 28px; border-radius: var(--r-panel); background: var(--bg-panel); color: var(--text); }
.term-card h3 { margin: 0 0 8px; font-size: 22px; }
.term-card__key { display: block; margin-bottom: 16px; font-family: var(--font-mono); color: var(--text-muted); font-size: var(--text-sm); overflow-wrap: anywhere; }
.term-card p { color: var(--text-muted); }
.client-card { padding: 32px; border-radius: var(--r-board); background: var(--bg-panel); color: var(--text); }
.client-card--primary { box-shadow: inset 0 0 0 2px var(--accent),var(--shadow-soft); }
.client-card__head { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin-bottom: 20px; }
.client-card__icon { width: 56px; height: 56px; flex-shrink: 0; }
.client-card__head h3 { margin: 0; font-size: 24px; }
.client-card__description { color: var(--text-muted); margin-bottom: 24px; }
.client-card__actions { display: flex; flex-wrap: wrap; gap: 12px; }
.client-card [data-rev]:empty { display: none; }
.client-card__revision { color: var(--text-muted); font-family: var(--font-mono); font-size: var(--text-sm); }
.badge, .chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background: var(--bg-panel-2);
  color: var(--text-muted);
  font-size: var(--text-xs);
  line-height: 1.5;
  font-weight: 650;
  white-space: normal;
  overflow-wrap: anywhere;
}
.badge--first, .badge--recommended { background: var(--accent-soft); color: var(--accent); }
.badge--archived { background: var(--bg-panel-2); color: var(--text-muted); }
.badge--success { background: var(--bg); color: var(--success); border: 1px solid var(--border); }
.badge--warning { background: var(--bg); color: var(--text); border: 1px solid var(--warn); }
.badge--error { background: var(--bg); color: var(--error); border: 1px solid var(--border); }
.badge-row { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.post-card { display: flex; flex-direction: column; align-items: flex-start; padding: 28px; border-radius: var(--r-panel); background: var(--bg-panel); color: var(--text); }
.post-card__meta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; color: var(--text-muted); font-size: var(--text-xs); }
.post-card h3 { margin: 20px 0 12px; font-size: 22px; }
.post-card h3 a { color: var(--text); }
.post-card h3 a:hover { color: var(--accent); }
.post-card p { margin-bottom: 20px; color: var(--text-muted); font-size: 15px; }
.post-card > .text-link { margin-top: auto; font-size: var(--text-sm); }
.callout {
  margin: 28px 0;
  padding: 24px 28px;
  border-left: 4px solid var(--accent);
  border-radius: var(--r-card);
  background: var(--bg-panel);
  color: var(--text);
}
.callout p + p { margin-top: 12px; }
.callout--warning { border-left-color: var(--warn); }
.callout--error { border-left-color: var(--error); }
.callout--success { border-left-color: var(--success); }
.table-scroll { overflow-x: auto; max-width: 100%; border-radius: var(--r-card); overscroll-behavior-inline: contain; }
.data-table { width: 100%; border-collapse: collapse; color: var(--text); font-size: var(--text-sm); text-align: left; }
.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);
  vertical-align: top;
  overflow-wrap: normal;
  word-break: normal;
}
.data-table th, .prose table th, .article-body table th { background: var(--bg-panel); color: var(--text); font-weight: 700; }
.prose table, .article-body table {
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
  min-width: 0;
  border-collapse: collapse;
  overscroll-behavior-inline: contain;
}
.data-table code, .prose table code, .article-body table code { overflow-wrap: anywhere; }
.download-guide { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px; margin-top: 48px; padding: 28px; border-radius: var(--r-panel); background: var(--bg-panel); color: var(--text); }
.download-guide h2, .download-guide h3 { margin: 0 0 8px; font-size: 24px; }
.download-guide p { color: var(--text-muted); }
.dl-fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 5px 18px 5px 6px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  box-shadow: var(--shadow-float);
  transition: border-color var(--fast) var(--ease);
}
.dl-fab:hover { color: var(--text); border-color: var(--accent); }
.dl-fab__icon { width: 34px; height: 34px; flex-shrink: 0; border-radius: var(--r-round); background: var(--accent); color: var(--bg); display: grid; place-items: center; }
.dl-fab__icon svg { width: 16px; height: 16px; }

/* 预览页的令牌色板。 */
.swatch-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(160px,1fr)); gap: 16px; }
.swatch { border: 1px solid var(--border); border-radius: var(--r-card); padding: 12px; background: var(--bg); color: var(--text); }
.swatch i { display: block; height: 72px; border-radius: var(--r-chip); margin-bottom: 10px; border: 1px solid var(--border); }
.swatch code { font-size: var(--text-xs); }
.swatch--bg i { background: var(--bg); color: var(--text); }
.swatch--panel i { background: var(--bg-panel); color: var(--text); }
.swatch--panel2 i { background: var(--bg-panel-2); color: var(--text); }
.swatch--border i { background: var(--border); color: var(--text); }
.swatch--strong i { background: var(--border-strong); color: var(--text); }
.swatch--dot i { background: var(--dot); color: var(--text); }
.swatch--accent i { background: var(--accent); color: var(--bg); }
.swatch--dark i { background: var(--accent-dark); color: var(--bg); }
.swatch--soft i { background: var(--accent-soft); color: var(--text); }
.swatch--purple i { background: var(--accent-2); color: var(--text); }
.swatch--text i { background: var(--text); color: var(--bg); }
.swatch--muted i { background: var(--text-muted); color: var(--bg); }
.swatch--faint i { background: var(--text-faint); color: var(--text); }
.swatch--success i { background: var(--success); color: var(--bg); }
.swatch--warn i { background: var(--warn); color: var(--text); }
.swatch--error i { background: var(--error); color: var(--bg); }
.swatch--veil i { background: var(--veil); color: var(--text); }
.swatch--clear i { background: var(--clear); color: var(--text); }
.type-display { font: 900 var(--h1)/1.15 var(--font-display); margin: 0; }
.preview-section-note { margin-bottom: 32px; color: var(--text-muted); }

@media (max-width: 960px) {
  .stage { width: 92vw; }
  .set-card--right { display: none; }
  .set-card--left { left: 3%; }
  .set-card--center { left: auto; right: 3%; margin-left: 0; }
  .hero-copy::before { width: 92vw; }
  .feature-detail { gap: 32px; }
  .tablist, [role="tablist"].segments { margin-bottom: 32px; }
}
@media (max-width: 768px) {
  .hero-title { font-size: 28px; }
  .feature-detail { grid-template-columns: 1fr; }
  .quick__grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero { padding-top: 28px; }
  .hero-title { font-size: 26px; }
  .hero-lead { font-size: 15.5px; }
  .hero-cta { flex-direction: column; gap: 6px; }
  .platforms { flex-direction: row; flex-wrap: wrap; gap: 8px; }
  .platforms a { padding-inline: 10px; }
  .stage { height: auto; -webkit-mask-image: none; mask-image: none; margin-top: 28px; }
  .board { height: auto; padding-bottom: 20px; }
  .board__chrome { grid-template-columns: 36px 1fr 0; padding-inline: 12px; }
  .board__dots { gap: 4px; }
  .board__dots span { width: 7px; height: 7px; }
  .board__title { font-size: 10px; }
  .board__cols { grid-template-columns: 1fr; gap: 16px; padding: 16px 16px 0; }
  .set-card, .set-card--left, .set-card--center {
    position: relative;
    left: auto;
    right: auto;
    top: auto;
    width: auto;
    margin: 16px 4px 0;
    transform: none;
  }
  .set-card--center { margin-top: 12px; }
  .quick { margin: 40px 0 0; padding: 56px 20px 72px; }
  .quick__title { font-size: 26px; }
  .quick-card { padding: 24px; }
  .feature-visual::before { transform: none; }
  .feature-detail h3 { font-size: 28px; }
  .feature-demo { padding: 24px; }
  [role="tab"] { padding-inline: 14px; font-size: var(--text-sm); }
  .client-card { padding: 24px; }
  .client-card__actions > a { width: 100%; }
  .callout { padding: 20px; }
  .dl-fab { right: 16px; bottom: 16px; }
  .download-guide { padding: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  [role="tabpanel"].is-active { animation: none; }
}