/* Lab：作品合集页。底色、字体、数字样式沿用 site.css + case-kit.css；版式单独一套（Owner 10-22：可以和案例页不同）。
   手绘元素都是 SVG 线条，进入视口时按 pathLength=1 一笔画出来；卡片的歪斜用独立的 rotate 属性，和 .rv 的 transform 入场互不覆盖 */
.lab main{max-width:calc(var(--w) + var(--g) * 2);margin:0 auto;padding:0 var(--g) 200px}

/* 手绘线：统一线宽、圆头，颜色走全站强调红 */
.doodle{position:absolute;overflow:visible;pointer-events:none}
.doodle path,.doodle circle{fill:none;stroke:var(--red);stroke-width:3;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset 1.4s var(--ease) var(--dd,.35s)}
.rv.in .doodle path,.rv.in .doodle circle{stroke-dashoffset:0}
.hand{font-family:var(--serif);font-style:italic;font-weight:400;color:var(--red);letter-spacing:.01em}

/* ── 封面 ── */
.lab-hero{position:relative;padding:clamp(150px,22vh,220px) 0 72px}
.lab-hero .chap{margin-bottom:28px}
.lab-title{position:relative;display:inline-block}
.lab-title h1{margin:0;font-family:var(--mono);font-weight:700;font-size:clamp(132px,15vw,232px);line-height:.86;letter-spacing:-.055em;color:var(--ink)}
.d-ring{left:-16%;top:-22%;width:132%;height:150%}
.d-ring path{stroke-width:2.6}
.d-star{right:-64px;top:-18px;width:44px;height:44px;--dd:1.2s}
.d-star path{stroke-width:2.4}
.lab-lede{max-width:26em;margin-top:56px;font-size:var(--fs-lead);line-height:1.6;color:var(--c2,#55585d);text-wrap:pretty}
/* 手写注记放右上角，箭头在字的左下方，往左下指向筛选和作品板 */
.lab-hint{position:absolute;right:0;bottom:150px;display:flex;align-items:flex-start;gap:2px}
.lab-hint .hand{font-size:28px;line-height:1;transform:rotate(-6deg)}
.d-arrow{position:relative;width:104px;height:78px;margin-top:22px;--dd:.9s}

/* ── 筛选 ── */
.lab-filter{display:flex;flex-wrap:wrap;gap:10px;padding:28px 0 0;border-top:1px solid rgba(17,18,20,.1)}
.lab-filter button{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border:1px solid rgba(17,18,20,.14);border-radius:999px;background:#fff;color:var(--ink);font:inherit;font-size:15px;cursor:pointer;transition:background .2s var(--ease-hand),color .2s var(--ease-hand),border-color .2s var(--ease-hand)}
.lab-filter button i{font-style:normal;font-family:var(--mono);font-size:12px;font-variant-numeric:tabular-nums;color:#8b8f95}
.lab-filter button:hover{border-color:rgba(17,18,20,.4)}
.lab-filter button.on{background:var(--ink);border-color:var(--ink);color:#fff}
.lab-filter button.on i{color:rgba(255,255,255,.6)}
.lab-filter button:focus-visible{outline:2px solid var(--red);outline-offset:2px}

/* ── 作品板：12 栏，卡片按大小占栏，dense 补空位 ── */
.lab .lab-board{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));grid-auto-flow:dense;gap:64px 32px;margin-top:112px;padding:12px 0}
.lab .lab-card{position:relative;grid-column:span 4;align-self:start;padding:14px 14px 22px;border-radius:16px;background:#fff;
  box-shadow:0 0 0 1px rgba(17,18,20,.07),0 16px 32px rgba(40,16,18,.08);
  rotate:var(--tilt,0deg);transition:opacity .9s var(--ease) var(--rd,0s),transform 1.1s var(--ease) var(--rd,0s),rotate .5s var(--spring),translate .5s var(--spring),box-shadow .4s var(--ease-hand)}
.lab-card.xl{grid-column:span 9}
.lab-card.l{grid-column:span 7}
.lab-card.m{grid-column:span 5}
.lab-card:nth-child(3n+2){margin-top:36px}
.lab .lab-card:hover{rotate:0deg;translate:0 -8px;box-shadow:0 0 0 1px rgba(17,18,20,.09),0 28px 48px rgba(40,16,18,.13)}
.tape{position:absolute;top:-13px;left:50%;width:92px;height:26px;margin-left:-46px;background:rgba(232,214,176,.78);rotate:calc(var(--tilt,0deg) * -2.2);
  clip-path:polygon(0 8%,6% 0,12% 10%,18% 0,24% 8%,30% 0,70% 0,76% 9%,82% 0,88% 10%,94% 0,100% 8%,100% 92%,94% 100%,88% 90%,82% 100%,76% 92%,70% 100%,30% 100%,24% 91%,18% 100%,12% 90%,6% 100%,0 92%)}
.lab-shot{display:grid;place-items:center;aspect-ratio:var(--ar,16/10);border:1.5px dashed rgba(17,18,20,.22);border-radius:14px 22px 12px 20px / 20px 12px 22px 14px;background:var(--cream)}
.lab-card.s .lab-shot{aspect-ratio:var(--ar,4/3)}
/* 竖屏卡：手机端或竖向窗口，卡片收窄到 3 栏，图按原比例完整显示 */
.lab-card.p{grid-column:span 3}
/* 有素材的卡片：去掉虚线框，图和视频铺满；.fit 用于竖图或自带底色的图，完整放进奶油底里 */
.lab-shot.has{position:relative;overflow:hidden;border:0;border-radius:10px;background:#111214}
.lab-shot.has img,.lab-shot.has video{display:block;width:100%;height:100%;object-fit:cover}
.lab-shot.has.fit{background:var(--cream)}
.lab-shot.has.fit img{object-fit:contain;padding:14px}
.lab-shot.has.fit.exact img{padding:0}
.lab-play{position:absolute;left:12px;bottom:12px;padding:4px 10px;border-radius:999px;background:rgba(17,18,20,.72);color:#fff;font-family:var(--mono);font-size:12px;font-variant-numeric:tabular-nums;letter-spacing:.02em;transition:opacity .25s var(--ease-hand)}
.lab-card.playing .lab-play{opacity:0}
.lab-ph{display:grid;justify-items:center;gap:10px;font-size:13px;color:#8b8f95}
.lab-ph svg{width:44px;height:44px;fill:none;stroke:#b3b6ba;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.lab-meta{position:relative;padding:20px 8px 0}
.lab-meta .lab-no{display:block;font-family:var(--mono);font-size:13px;font-weight:500;letter-spacing:.04em;color:#8b8f95;font-variant-numeric:tabular-nums}
.lab-meta h2{margin:8px 0 0;font-size:var(--fs-h3);font-weight:600;line-height:1.4;color:var(--ink)}
.lab-card.l .lab-meta h2,.lab-card.xl .lab-meta h2{font-size:26px}
.lab-meta p{margin-top:6px;font-size:15px;line-height:1.7;color:#55585d}
.lab-tags{display:flex;flex-wrap:wrap;gap:6px;margin:14px 0 0;padding:0;list-style:none}
.lab-tags li{padding:3px 10px;border-radius:999px;background:var(--cream);font-size:12px;line-height:1.6;color:#55585d}
.lab-acts{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.lab-act{display:inline-flex;align-items:center;gap:4px;height:34px;padding:0 14px;border:1px solid rgba(17,18,20,.16);border-radius:999px;font-size:14px;color:var(--ink);text-decoration:none;transition:background .2s var(--ease-hand),color .2s var(--ease-hand)}
.lab-act b{font-weight:400;font-family:var(--mono)}
a.lab-act:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.lab-act[aria-disabled="true"]{opacity:.4;cursor:not-allowed}

/* 手写便签：板上唯一不是作品的一张 */
.lab-note{position:relative;grid-column:span 3;align-self:center;display:grid;gap:10px;padding:26px 22px;border-radius:4px;background:var(--cream);rotate:var(--tilt,0deg)}
.lab-note .hand{font-size:30px;line-height:1.1}
.d-squiggle{position:relative;width:100%;height:24px;--dd:.6s}

.lab-card[hidden],.lab-note[hidden]{display:none}
.lab-empty{margin-top:40px;text-align:center;color:#8b8f95}

/* ── 自媒体：粉丝数据两张横图 + 作品四张竖图，先占位 ── */
.lab .lab-social{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:56px 32px;margin-top:160px;padding-top:72px;border-top:1px solid rgba(17,18,20,.1)}
.lab-social-head{grid-column:span 4;align-self:start}
.lab-social-head .hand{font-size:28px;display:inline-block;transform:rotate(-4deg)}
.lab-social-head h2{margin:18px 0 0;font-size:var(--fs-h2,40px);font-weight:600;line-height:1.25;letter-spacing:-.01em;color:var(--ink)}
.lab-social-head p{margin-top:18px;font-size:var(--fs-body);line-height:1.7;color:#55585d}
.lab-social-num{grid-column:span 8;align-self:end;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 32px;margin:0;padding:0;list-style:none}
.lab-social-num strong{display:block;font-size:clamp(40px,4vw,60px);line-height:1;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--ink)}
.lab-social-num strong small{margin-left:2px;font-size:.5em;font-weight:600;letter-spacing:0}
.lab-social-num span{display:block;margin-top:12px;font-size:var(--fs-cap,14px);line-height:1.6;color:#55585d}
.lab-social-shots{grid-column:1 / -1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:56px 32px;margin-top:24px}
.lab-slot{position:relative;margin:0;padding:12px 12px 16px;border-radius:14px;background:#fff;box-shadow:0 0 0 1px rgba(17,18,20,.07),0 16px 32px rgba(40,16,18,.08);rotate:var(--tilt,0deg)}
.lab-slot.post .lab-shot{aspect-ratio:600/1272}
.lab-slot figcaption{padding:14px 6px 0;font-size:13px;line-height:1.6;color:#8b8f95}
.lab-slot figcaption b{display:block;font-size:15px;font-weight:600;color:var(--ink)}

/* ── 结尾 ── */
.lab-end{display:grid;justify-items:center;gap:18px;margin-top:140px;text-align:center}
.lab-end p{font-size:var(--fs-body);color:#8b8f95}
.d-loop{position:relative;width:180px;height:54px}

/* 窄屏：选择器统一带 .lab 前缀，压过上面 .lab .lab-card 的 span 4，否则单列网格会被撑出隐式列、横向溢出 */
@media (max-width:900px){
  .lab .lab-board{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 20px}
  .lab .lab-card,.lab .lab-card.m,.lab .lab-card.p,.lab .lab-note{grid-column:span 1}
  .lab .lab-card.l,.lab .lab-card.xl{grid-column:1 / -1}
  .lab .lab-card:nth-child(3n+2){margin-top:0}
  .lab-hint{display:none}
  .lab-social-head,.lab-social-num{grid-column:1 / -1}
  .lab-social-shots{grid-template-columns:repeat(2,minmax(0,1fr))}
}
/* 手机：单列作品流，保留歪斜和胶带但角度减半；竖屏卡收窄居中，免得一张图占两屏 */
@media (max-width:600px){
  .lab main{padding-bottom:140px}
  .lab-hero{padding:120px 0 48px}
  .lab-title h1{font-size:clamp(104px,30vw,132px)}
  .d-star{right:-36px}
  .lab-lede{margin-top:40px}
  .lab-filter{flex-wrap:nowrap;overflow-x:auto;margin:0 calc(var(--g) * -1);padding:24px var(--g) 4px;scrollbar-width:none}
  .lab-filter::-webkit-scrollbar{display:none}
  .lab-filter button{flex:none;height:44px}
  .lab .lab-board{grid-template-columns:minmax(0,1fr);gap:48px;margin-top:64px}
  .lab .lab-card{--tilt-m:calc(var(--tilt,0deg) * .5);rotate:var(--tilt-m);padding:12px 12px 20px}
  .lab .lab-card.p{justify-self:center;width:72%}
  .lab .lab-card.l .lab-meta h2,.lab .lab-card.xl .lab-meta h2{font-size:var(--fs-h3)}
  .lab-act{height:44px;padding:0 18px}
  .lab .lab-note{justify-self:center;width:72%}
  .lab .lab-social{gap:40px 16px;margin-top:112px;padding-top:56px}
  .lab-social-num{gap:28px 16px}
  .lab-social-num strong{font-size:36px}
  .lab-social-shots{gap:28px 14px;margin-top:8px}
  .lab-slot{padding:8px 8px 12px}
  .lab-slot figcaption{padding:10px 2px 0;font-size:12px}
  .lab-slot figcaption b{font-size:14px}
  .lab-end{margin-top:96px}
}
/* 触屏没有悬停：卡片不做抬起，录屏改成进入视口自动播（lab.js） */
@media (hover:none){
  .lab .lab-card:hover{rotate:var(--tilt-m,var(--tilt,0deg));translate:none;box-shadow:0 0 0 1px rgba(17,18,20,.07),0 16px 32px rgba(40,16,18,.08)}
}
@media (prefers-reduced-motion:reduce){
  .doodle path,.doodle circle{transition:none;stroke-dashoffset:0}
  .lab-card{transition:none}
}

/* 引导语按设备换说法（10-22） */
.lab-hint-touch{display:none}
@media (hover:none),(pointer:coarse){.lab-hint-fine{display:none}.lab-hint-touch{display:inline}}