/* ============================================================
   COLLECTION
   ============================================================ */
.coll{max-width:var(--wrap);margin:0 auto;padding:0 32px}
.crumb2{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted-2);
  padding:18px 0 0;flex-wrap:wrap}
.crumb2 a:hover{color:var(--acc)}
.crumb2 i{font-style:normal;opacity:.45}
.crumb2 b{color:var(--muted);font-weight:500}

.collhero{padding:26px 0 30px}
.collhero__h{font-size:clamp(40px,5.6vw,68px);margin:12px 0 0}
.collhero__p{color:var(--muted);font-size:14px;line-height:1.75;margin:16px 0 0;max-width:590px}

/* 选项卡 */
.tabsbar{position:sticky;top:var(--hdr-h,72px);z-index:60;
  background:rgba(8,10,9,.92);backdrop-filter:blur(14px);border-top:1px solid var(--line);
  border-bottom:1px solid var(--line)}
.tabs{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{position:relative;flex:0 0 auto;height:52px;padding:0 20px;border:0;background:none;
  display:flex;align-items:center;gap:8px;cursor:pointer;color:var(--muted);
  font-family:var(--f-cond);font-size:12.5px;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;transition:color .2s}
.tab em{font-style:normal;font-size:10px;letter-spacing:.04em;color:var(--muted-2);
  padding:1px 6px;border-radius:99px;border:1px solid var(--line)}
.tab::after{content:"";position:absolute;left:16px;right:16px;bottom:-1px;height:2px;
  background:var(--acc);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.tab:hover{color:var(--ink)}
.tab.on{color:var(--ink)}
.tab.on em{color:var(--acc);border-color:rgba(184,239,108,.4)}
.tab.on::after{transform:scaleX(1)}

/* 主体 */
.coll__in{display:grid;grid-template-columns:236px 1fr;gap:0;
  padding:30px 0 78px;align-items:start}
.collmain{padding-left:36px;border-left:1px solid var(--line)}
/* 包裹层撑满整行，里面那层才能 sticky（grid item 自身高度=内容高，没有可吸附空间） */
.sidewrap{align-self:stretch;min-height:1px}
.side{position:sticky;top:calc(var(--hdr-h,72px) + 68px);padding-right:20px}
.side__hd{display:flex;align-items:center;gap:12px;padding-bottom:14px}
.side__hd b{font-family:var(--f-cond);font-size:13px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--ink)}
.side__clear{margin-left:auto;background:none;border:0;color:var(--muted-2);font-size:11.5px;
  text-decoration:underline;text-underline-offset:3px;cursor:pointer;transition:color .2s}
.side__clear:hover{color:var(--acc)}
.side__x{display:none;width:30px;height:30px;border-radius:7px;border:1px solid var(--line);
  background:none;color:var(--muted);font-size:16px;line-height:1;cursor:pointer}
.side__apply{display:none}

.fgroup{border-top:1px solid var(--line);padding:16px 0 12px}
.fgroup h3{margin:0 0 10px;font-family:var(--f-cond);font-size:10.5px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--muted-2)}
.fopt{display:flex;align-items:center;gap:10px;padding:7px 0;cursor:pointer;
  font-size:12.5px;color:var(--muted);transition:color .18s}
.fopt:hover{color:var(--ink)}
.fopt input{position:absolute;opacity:0;width:0;height:0;pointer-events:none}
.fopt .box{width:15px;height:15px;border-radius:4px;border:1px solid var(--line-2);
  background:var(--surface);display:grid;place-items:center;flex:0 0 auto;transition:.18s}
.fopt .box svg{width:9px;height:9px;stroke:#0A1008;stroke-width:2.6;fill:none;
  stroke-linecap:round;stroke-linejoin:round;opacity:0;transition:opacity .15s}
.fopt input:checked + .box{background:var(--acc);border-color:var(--acc)}
.fopt input:checked + .box svg{opacity:1}
.fopt input:focus-visible + .box{outline:2px solid var(--acc);outline-offset:2px}
.fopt .lbl{flex:1;line-height:1.35}
.fopt em{font-style:normal;font-size:11px;color:var(--muted-2);font-variant-numeric:tabular-nums}
.fopt.is-empty{opacity:.3;pointer-events:none}
.fopt:has(input:checked){color:var(--ink)}
.fopt:has(input:checked) em{color:var(--acc)}

/* 工具栏 */
.coll__bar{display:flex;align-items:center;justify-content:space-between;gap:14px;
  flex-wrap:wrap;margin-bottom:16px}
.coll__count{margin:0;font-size:12.5px;color:var(--muted)}
.coll__count b{color:var(--ink);font-weight:600}
.coll__tools{display:flex;align-items:center;gap:10px}
.sel{position:relative;display:flex;align-items:center}
.sel select{appearance:none;height:36px;padding:0 32px 0 12px;border-radius:9px;
  background:var(--surface);border:1px solid var(--line);color:var(--ink);
  font-family:var(--f-ui);font-size:12px;cursor:pointer;transition:border-color .2s}
.sel select:hover{border-color:var(--line-2)}
.sel svg{position:absolute;right:11px;width:9px;height:9px;pointer-events:none;
  stroke:var(--muted);stroke-width:2;fill:none}
.fbtn{display:none;height:36px;padding:0 14px;border-radius:9px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);font-size:12px;cursor:pointer;
  align-items:center;gap:8px}
.fbtn em{font-style:normal;min-width:17px;height:17px;border-radius:99px;background:var(--acc);
  color:#0A1008;font-size:10px;font-weight:700;display:none;place-items:center}
.fbtn em[data-on="1"]{display:grid}

/* 已选标签 */
.chips{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:16px}
.chip{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 8px 0 11px;
  border-radius:99px;background:var(--acc-dim);border:1px solid rgba(184,239,108,.32);
  color:var(--acc);font-size:11.5px;cursor:pointer;transition:.18s}
.chip span{display:grid;place-items:center;width:16px;height:16px;border-radius:50%;
  background:rgba(184,239,108,.16);font-size:11px;line-height:1}
.chip:hover{background:rgba(184,239,108,.2)}

/* 网格 */
.collgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pcard[hidden]{display:none}
.pcard .card__spec{display:flex;align-items:center;gap:7px;margin-top:7px;
  font-family:var(--f-cond);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted-2)}
.pcard .card__spec i{width:3px;height:3px;border-radius:50%;background:var(--line-3,#2B332E);flex:0 0 auto}
.pcard .card__name{min-height:36px}

/* 空状态样式已统一放在 style.css 的 .empty 区块（全站通用） */

/* 移动端筛选抽屉 */
.side__bg{position:fixed;inset:0;z-index:88;background:rgba(3,5,4,.72);
  opacity:0;pointer-events:none;transition:opacity .28s}
.side__bg.on{opacity:1;pointer-events:auto}

/* 提示条 */
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,16px);z-index:120;
  max-width:90vw;padding:11px 18px;border-radius:10px;background:rgba(20,26,23,.96);
  border:1px solid var(--line-2);color:var(--ink);font-size:12.5px;
  box-shadow:0 18px 40px rgba(0,0,0,.5);opacity:0;pointer-events:none;transition:.28s var(--ease)}
.toast.on{opacity:1;transform:translate(-50%,0)}

@media (max-width:1180px){
  .collgrid{grid-template-columns:1fr 1fr}
}
@media (max-width:980px){
  .coll__in{grid-template-columns:1fr;gap:0;padding-top:20px}
  .side{position:fixed;left:0;top:0;bottom:0;width:min(330px,88vw);z-index:90;
    background:var(--surface);border-right:1px solid var(--line-2);padding:0 20px 26px;
    padding-right:20px;
    overflow-y:auto;transform:translateX(-102%);transition:transform .32s var(--ease);
    display:flex;flex-direction:column}
  .collmain{padding-left:0;border-left:0}
  .side.on{transform:none}
  .side__hd{position:sticky;top:0;z-index:2;background:var(--surface);padding:16px 0 14px;
    border-bottom:1px solid var(--line)}
  .side__x{display:grid;place-items:center;margin-left:4px}
  .side__apply{display:flex;position:sticky;bottom:0;width:100%;justify-content:center;
    margin-top:auto;flex:0 0 auto}
  .fbtn{display:inline-flex}
  .side__clear{margin-left:auto}
  .tabs{-webkit-mask-image:linear-gradient(90deg,#000 84%,transparent 100%);
    mask-image:linear-gradient(90deg,#000 84%,transparent 100%)}
}
@media (max-width:560px){
  .coll{padding:0 20px}
  .collhero{padding:18px 0 22px}
  .tab{height:46px;padding:0 14px;font-size:11.5px}
  .collgrid{grid-template-columns:1fr 1fr;gap:11px}
  .coll__bar{gap:10px}
  .coll__count{font-size:12px}
}