/* ===================================================================
   蓝色空间（showcase.html）— 三维场景画廊
   深色底：实景三维画面暗部丰富，放在深色上边界干净、不抢画面。
   结构：页头 → 精选横幅(可选) → 工具行(搜索 / 类型 / 排序) → 场景网格
   =================================================================== */
.space-body{background:#070d19}
.space{padding:112px 0 110px;min-height:100vh;background:
  radial-gradient(900px 420px at 12% -8%,rgba(10,102,255,.22),transparent 70%),
  radial-gradient(700px 360px at 92% 0%,rgba(47,139,255,.12),transparent 70%),#070d19}
.space .container{max-width:1360px}

/* 页头 */
.space-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:30px}
.space-head__kicker{font-size:12px;letter-spacing:.24em;font-weight:700;color:var(--blue-glow);margin-bottom:10px}
.space-head h1{display:flex;align-items:center;gap:14px;font-size:clamp(30px,3.6vw,44px);font-weight:800;color:#fff;letter-spacing:.02em;line-height:1.15}
.space-head h1 img{width:40px;height:40px;filter:drop-shadow(0 6px 18px rgba(10,102,255,.55))}
.space-head p{color:rgba(255,255,255,.62);font-size:15px;margin-top:10px}
.space-stats{display:flex;gap:10px}
.space-stats[hidden]{display:none}
.space-stat{padding:10px 16px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);min-width:108px}
.space-stat b{display:block;font-size:20px;color:#fff;font-weight:800;line-height:1.2}
.space-stat span{font-size:12px;color:rgba(255,255,255,.5)}

/* 精选横幅 */
.space-rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(300px,1fr);gap:16px;overflow-x:auto;
  scroll-snap-type:x mandatory;padding-bottom:6px;margin-bottom:34px;scrollbar-width:thin}
.space-rail[hidden]{display:none}
.space-feat{position:relative;display:block;aspect-ratio:16/8.5;border-radius:16px;overflow:hidden;scroll-snap-align:start;
  background:linear-gradient(135deg,#123067,#0a1733);color:#fff;border:1px solid rgba(255,255,255,.08)}
.space-feat img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.space-feat::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(5,10,22,.9) 8%,rgba(5,10,22,.15) 60%,rgba(5,10,22,0))}
.space-feat:hover img{transform:scale(1.05)}
.space-feat__tag{position:absolute;z-index:1;top:14px;left:14px;font-size:12px;font-weight:700;letter-spacing:.06em;padding:4px 10px;border-radius:999px;
  background:var(--blue);box-shadow:0 6px 18px -4px rgba(10,102,255,.7)}
.space-feat__txt{position:absolute;z-index:1;left:18px;right:18px;bottom:16px}
.space-feat__txt h3{font-size:19px;font-weight:800;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.space-feat__txt p{font-size:13px;color:rgba(255,255,255,.72);margin:4px 0 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* 工具行 */
.space-bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:24px}
.space-search{position:relative;flex:1 1 280px;max-width:420px}
.space-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);opacity:.5}
.space-search input{width:100%;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.04);
  color:#fff;font:inherit;font-size:14px;padding:0 14px 0 40px;outline:none;transition:border-color .2s,background .2s}
.space-search input::placeholder{color:rgba(255,255,255,.4)}
.space-search input:focus{border-color:var(--blue-glow);background:rgba(255,255,255,.07)}
.space-filter{display:flex;gap:8px;flex-wrap:wrap}
.space-filter button,.space-sort button{all:unset;cursor:pointer;font-size:13.5px;font-weight:600;transition:background .2s,color .2s,border-color .2s}
.space-filter button{padding:7px 14px;border-radius:999px;color:rgba(255,255,255,.7);border:1px solid rgba(255,255,255,.1)}
.space-filter button:hover{color:#fff;border-color:rgba(255,255,255,.25)}
.space-filter button.is-on{color:#fff;background:rgba(10,102,255,.2);border-color:var(--blue-glow)}
.space-sort{margin-left:auto;display:flex;padding:4px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08)}
.space-sort button{padding:6px 14px;border-radius:9px;color:rgba(255,255,255,.6)}
.space-sort button:hover{color:#fff}
.space-sort button.is-on{background:var(--blue);color:#fff}
.space-filter button:focus-visible,.space-sort button:focus-visible{outline:2px solid var(--blue-glow);outline-offset:2px}

/* 场景网格与卡片 */
.space-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:22px}
.space-card{position:relative;display:flex;flex-direction:column;border-radius:16px;overflow:hidden;min-width:0;
  background:linear-gradient(180deg,#101a2e,#0c1526);border:1px solid rgba(255,255,255,.07);
  transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
.space-card:hover{transform:translateY(-4px);border-color:rgba(47,139,255,.5);box-shadow:0 22px 50px -24px rgba(10,102,255,.6)}
.space-card[hidden]{display:none}
.space-card__link{position:absolute;inset:0;z-index:1}
.space-card__link:focus-visible{outline:2px solid var(--blue-glow);outline-offset:-2px;border-radius:16px}
.space-card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#13254a,#0a1630 60%,#122a55)}
.space-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.space-card:hover .space-card__media img{transform:scale(1.05)}
.space-card__badges{position:absolute;top:10px;left:10px;display:flex;gap:6px}
.space-card__badge{padding:3px 9px;border-radius:7px;font-size:11.5px;font-weight:700;color:#fff;
  background:rgba(6,12,26,.6);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.14)}
.space-card__badge--gs{background:rgba(10,102,255,.78);border-color:rgba(120,180,255,.5)}
.space-card__enter{position:absolute;right:12px;bottom:12px;display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;
  font-size:12.5px;font-weight:700;color:#fff;background:var(--blue);opacity:0;transform:translateY(6px);transition:opacity .25s,transform .25s var(--ease)}
.space-card:hover .space-card__enter,.space-card:focus-within .space-card__enter{opacity:1;transform:none}
.space-card__body{display:flex;flex-direction:column;flex:1;padding:14px 16px 0}
.space-card__title{font-size:16px;font-weight:800;color:#fff;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.space-card__desc{font-size:13px;line-height:1.6;color:rgba(255,255,255,.58);margin:6px 0 0;min-height:41.6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.space-card__desc.is-empty{color:rgba(255,255,255,.3)}
.space-card__by{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.55)}
.space-card__author{display:flex;align-items:center;gap:7px;min-width:0}
.space-card__author i{flex:none;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;font-style:normal;font-size:11px;font-weight:800;
  color:#fff;background:linear-gradient(135deg,var(--blue),#5aa2ff)}
.space-card__author span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.space-card__foot{display:flex;align-items:center;justify-content:space-between;margin-top:12px;padding:10px 0 12px;border-top:1px solid rgba(255,255,255,.07);font-size:12.5px;color:rgba(255,255,255,.5)}
.space-card__views{display:inline-flex;align-items:center;gap:5px}
.space-card__share{all:unset;position:relative;z-index:2;cursor:pointer;display:inline-flex;align-items:center;gap:5px;padding:4px 8px;margin-right:-8px;border-radius:8px;color:rgba(255,255,255,.6)}
.space-card__share:hover{color:#fff;background:rgba(255,255,255,.08)}
.space-card__share:focus-visible{outline:2px solid var(--blue-glow)}

.space-empty{grid-column:1/-1;text-align:center;padding:80px 0;color:rgba(255,255,255,.5);font-size:14px}
.space-note{text-align:center;color:rgba(255,255,255,.38);font-size:12.5px;margin-top:48px;line-height:1.8}

/* 分享提示 */
.space-toast{position:fixed;left:50%;bottom:32px;z-index:200;transform:translate(-50%,16px);opacity:0;pointer-events:none;
  padding:10px 18px;border-radius:999px;background:#fff;color:var(--ink);font-size:14px;font-weight:600;box-shadow:0 12px 32px rgba(0,0,0,.35);
  transition:opacity .25s,transform .25s var(--ease)}
.space-toast.is-on{opacity:1;transform:translate(-50%,0)}

@media(max-width:760px){
  .space{padding:96px 0 80px}
  .space .container{padding:0 16px}
  .space-stats{width:100%}
  .space-stat{flex:1}
  .space-search{max-width:none;flex-basis:100%}
  .space-sort{margin-left:0}
  .space-rail{grid-auto-columns:86%}
  .space-grid{grid-template-columns:1fr}
}
@media(hover:none){.space-card__enter{opacity:1;transform:none}}