/* 首页丙′（活页 / 与 /lab/home-a|b|c/）。 */

@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/26.woff2") format("woff2"); unicode-range: U+5F00; }
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/37.woff2") format("woff2"); unicode-range: U+6E90; }
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/40.woff2") format("woff2"); unicode-range: U+5546; }
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/18.woff2") format("woff2"); unicode-range: U+7528; }
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/45.woff2") format("woff2"); unicode-range: U+5B57; }
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/21.woff2") format("woff2"); unicode-range: U+4F53; }

.lab-home-page .page { padding-top: var(--s-6); }
body.lab-home-page .site-foot {
  margin-top: var(--s-8);
  border-top: 0;
}

.lab-flag {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-2) var(--s-3);
  margin: 0 0 var(--s-8);
  font-size: var(--fs-12);
  color: var(--gray);
}
.lab-flag a { color: var(--ink); }

.search.is-embed {
  position: relative;
  max-width: none;
  display: block;
  min-width: 0;
  width: 100%;
}
.search.is-embed input {
  width: 100%;
  height: var(--s-12);
  padding-right: 6.5rem;
}
.search.is-embed .btn {
  position: absolute;
  right: var(--s-1);
  top: 50%;
  transform: translateY(-50%);
}
.search.is-embed.is-live input { padding-right: var(--s-5); }

/* 甲 · 一字：第一屏就是一款字 */
.lab-face {
  display: grid;
  gap: var(--s-10);
  min-height: calc(100vh - var(--topbar-h) - 8rem);
  align-content: center;
}
.lab-face-slide { min-width: 0; }
.lab-proof {
  margin: 0;
  font-size: clamp(3.25rem, 10vw, 7.5rem);
  font-weight: var(--fw-body);
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--ink);
  word-break: keep-all;
}
.lab-cap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-3) var(--s-6);
  margin: var(--s-8) 0 0;
}
.lab-cap .who {
  font-size: var(--fs-16);
  color: var(--ink-2);
}
.lab-cap .st {
  font-size: var(--fs-12);
  color: var(--gray);
}
.lab-cap .btn-text {
  border: 0;
  background: transparent;
  padding: 0;
  font: inherit;
  font-size: var(--fs-13);
  color: var(--ink);
  cursor: pointer;
}
.lab-cap .btn-text:hover { text-decoration: underline; text-underline-offset: 0.2em; }
.lab-face .search.is-embed { max-width: 36rem; }

/* 乙 · 索引：首页就是目录 */
.lab-idx { display: grid; gap: var(--s-6); }
.lab-idx-line {
  margin: 0;
  max-width: 22em;
  font-size: var(--fs-16);
  color: var(--ink-2);
  line-height: var(--lh-body);
  word-break: keep-all;
}
.lab-idx .count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--gray-2);
}
.lab-idx .chips a.chip { color: inherit; }

/* 丙′ · 主门开源商用字体 + 三侧门 */
.lab-doors.is-prime {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
  grid-template-areas:
    "find q1"
    "find q2"
    "find q3";
  min-height: calc(100vh - var(--topbar-h) - 7rem);
}
.lab-doors.is-prime::before,
.lab-doors.is-prime::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(to right, transparent 0%, var(--rule) 55%, var(--rule) 100%);
}
.lab-doors.is-prime::before { top: 0; }
.lab-doors.is-prime::after { bottom: 0; }
.lab-doors.is-prime .lab-door {
  display: flex;
  flex-direction: column;
  color: inherit;
  text-decoration: none;
  min-height: 0;
  border: 0;
  border-bottom: 1px solid var(--rule);
}
.lab-doors.is-prime .is-find {
  grid-area: find;
  justify-content: center;
  gap: var(--s-10);
  padding: var(--s-12) var(--s-10);
  background: transparent;
  border-right: 1px solid var(--rule);
  border-bottom: 0;
}
.lab-doors.is-prime .is-side {
  position: relative;
  justify-content: center;
  gap: var(--s-4);
  padding: var(--s-8) var(--s-8);
  border-right: 1px solid var(--rule);
  min-height: 0;
  overflow: hidden;
}
.lab-side-bg {
  position: absolute;
  right: -0.06em;
  bottom: -0.28em;
  z-index: 0;
  font-family: "WF-Xxzt", "Libian SC", "STLibian", "Songti SC", serif;
  font-size: clamp(7rem, 22vw, 13rem);
  font-weight: 400;
  line-height: 0.9;
  color: var(--ink);
  opacity: 0;
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  transition: opacity var(--dur) var(--ease);
}
.lab-doors.is-prime .is-side > :not(.lab-side-bg) { position: relative; z-index: 1; }
.lab-doors.is-prime .is-q1 { grid-area: q1; }
.lab-doors.is-prime .is-q2 { grid-area: q2; }
.lab-doors.is-prime .is-q3 { grid-area: q3; }
.lab-doors.is-prime .is-side:last-child { border-bottom: 0; }
a.lab-door.is-side:hover { background: var(--surface); text-decoration: none; }
a.lab-door.is-side:hover .lab-side-bg,
a.lab-door.is-side:focus-visible .lab-side-bg { opacity: 0.1; }
@media (prefers-reduced-motion: reduce) {
  .lab-side-bg { transition: none; }
}
.lab-find-copy {
  display: flex;
  flex-direction: column;
}
.lab-find-kicker {
  margin: 0 0 var(--s-6);
  font-family: var(--font-mono);
  font-size: var(--fs-16);
  color: var(--gray);
  letter-spacing: 0.02em;
}
.lab-find-title {
  margin: 0 0 var(--s-8);
  font-family: "WF-Xxzt", "Libian SC", "STLibian", "Songti SC", serif;
  font-size: clamp(3.75rem, 9vw, 6rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0;
}
.lab-find-live {
  display: block;
  outline: none;
  cursor: text;
  overflow-wrap: anywhere;
  word-break: break-word;
  min-height: 1.1em;
}
.lab-find-em {
  font-size: 1.32em;
  margin-right: 0.06em;
}
.lab-find-live:empty::before {
  content: attr(data-placeholder);
  color: var(--gray-2);
}
.lab-find-live:focus {
  outline: none;
}
.lab-doors.is-prime .is-find .d {
  margin: 0;
  font-size: var(--fs-16);
  color: var(--ink-2);
  line-height: var(--lh-body);
  word-break: keep-all;
}
.lab-find-act {
  display: grid;
  gap: var(--s-4);
  max-width: 36rem;
  margin-top: var(--s-2);
}
.lab-find-more {
  margin: 0;
  font-size: var(--fs-13);
}
.lab-find-more a { color: var(--ink); }
.lab-doors.is-prime .is-side .idx {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--gray-2);
  letter-spacing: 0.06em;
}
.lab-doors.is-prime .is-side h2 {
  margin: 0;
  font-family: "WF-Xxzt", "Libian SC", "STLibian", "Songti SC", serif;
  font-size: clamp(1.75rem, 2.4vw, 2.25rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0;
  word-break: keep-all;
}
.lab-doors.is-prime .is-side h2 .for-dev {
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  font-weight: var(--fw-body);
  letter-spacing: 0;
}
.lab-doors.is-prime .is-side .d {
  margin: 0;
  max-width: none;
  font-size: var(--fs-13);
  color: var(--gray);
  line-height: var(--lh-body);
  word-break: keep-all;
}
.lab-doors.is-prime .is-side .go {
  margin-top: var(--s-2);
  padding-top: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

@media (max-width: 900px) {
  .lab-proof { font-size: clamp(2.5rem, 14vw, 4rem); }
  /* 参 APP 移动端：主门内距收拢、标题走视口缩放 */
  .lab-doors.is-prime .is-find { padding: var(--s-8) 0 var(--s-6); }
  .lab-find-title { font-size: clamp(3rem, 13vw, 3.75rem); }
  /* 侧门移动端：满屏宽、左对齐（人定，不居中）；左右留 gutter 舒展 */
  .lab-doors.is-prime .is-side { padding: var(--s-8) var(--gutter); }
  /* hero 区有自己的容器边距：大字/导语/检索不贴屏缘 */
  .lab-doors.is-prime .is-find { padding: var(--s-10) var(--gutter) var(--s-8); }
  /* 「开源」独占一行——不锁的话窄屏会在第 5 个字处硬折，把「商用」拆开；
     格子 1fr 收成 minmax(0,1fr)，导语放开 keep-all：两者都会把内容顶出视口 */
  .lab-find-live .lab-find-em { display: block; }
  .lab-doors.is-prime .is-find .d { word-break: normal; }
  .lab-doors.is-prime {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "find" "q1" "q2" "q3";
    min-height: 0;
    margin: 0 calc(-1 * var(--gutter));
  }
  .lab-doors.is-prime > * { padding-left: var(--gutter); padding-right: var(--gutter); }
  .lab-doors.is-prime .is-find {
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }
  .lab-doors.is-prime .is-side { border-right: 0; }
}

/* 页脚乙丙对照 */
.site-foot.is-foot-b .site-foot-inner {
  display: block;
  max-width: 36rem;
  padding-bottom: var(--s-8);
}
.site-foot.is-foot-c { padding-top: 0; }
.foot-jobs {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--s-5) var(--s-10);
  padding-top: var(--s-8);
  padding-bottom: var(--s-8);
}
.foot-jobs a {
  color: var(--ink);
  font-size: var(--fs-14);
  white-space: nowrap;
}
.foot-jobs a:hover { text-decoration: none; }
.foot-jobs .idx {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--gray-2);
  margin-right: 0.45em;
  letter-spacing: 0.04em;
}

/* 主门 h1 第二词轮换：免费/高级/精品，玄宗静态切片（U+514D/8D39/9AD8/7EA7/7CBE/54C1） */
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/514d.woff2") format("woff2"); unicode-range: U+514D; }
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/8d39.woff2") format("woff2"); unicode-range: U+8D39; }
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/9ad8.woff2") format("woff2"); unicode-range: U+9AD8; }
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/7ea7.woff2") format("woff2"); unicode-range: U+7EA7; }
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/7cbe.woff2") format("woff2"); unicode-range: U+7CBE; }
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/54c1.woff2") format("woff2"); unicode-range: U+54C1; }
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/6587.woff2") format("woff2"); unicode-range: U+6587; }
@font-face { font-family: "WF-Xxzt"; font-weight: 400; font-display: swap; src: url("/assets/wfxxzt/6d3e.woff2") format("woff2"); unicode-range: U+6D3E; }
.lab-rot { display: inline-grid; }
.lab-rot > span {
  grid-area: 1 / 1;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s var(--ease), visibility 0s linear 0.6s;
}
.lab-rot > span.is-on {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.6s var(--ease);
}
@media (prefers-reduced-motion: reduce) {
  .lab-rot > span { transition: none; }
}