/* 空间目录 · 螺旋动画（03 区块卡片点击后）
   InfiniteSpiral 组件样式移植（react-bits / shadcn registry）+ 全屏覆盖层 */

body.spiral-open{overflow:hidden}

/* 从螺旋里点开原图集时，弹窗要盖在正在淡出的螺旋层上面，立刻能看见大图 */
#folder-modal{z-index:150}

.spiral-overlay{
  position:fixed;inset:0;z-index:130;
  display:grid;place-items:center;
  padding:clamp(14px,3vh,34px) clamp(14px,3vw,36px);
  background:rgba(5,10,20,.72);
  backdrop-filter:blur(14px);
  color:#e9eef6;
  opacity:0;visibility:hidden;
  transition:opacity .5s ease,visibility .5s ease;
}
.spiral-overlay.is-open{opacity:1;visibility:visible}

/* 面板占屏幕 80%（宽高都是 80vw/80vh，不再用像素上限压住） */
.spiral-panel{
  position:relative;
  display:grid;grid-template-rows:auto minmax(0,1fr) auto;
  width:80vw;height:80vh;
  background:
    radial-gradient(120% 90% at 50% 6%, #1e2f4d 0%, #111d33 44%, #070d18 100%);
  border:1px solid rgba(216,231,250,.15);
  border-radius:20px;
  overflow:hidden;
  box-shadow:0 40px 110px rgba(0,0,0,.55);
  transform:translateY(12px) scale(.985);
  transition:transform .5s cubic-bezier(.2,.8,.2,1);
}
.spiral-overlay.is-open .spiral-panel{transform:none}

.spiral-head{
  display:flex;align-items:flex-start;justify-content:space-between;gap:24px;
  padding:clamp(20px,3.2vh,34px) clamp(22px,3vw,40px) 0;
}
.spiral-kicker{
  margin:0 0 12px;font-size:10px;font-weight:600;letter-spacing:.22em;
  color:#8ea4bf;
}
.spiral-head h2{
  margin:0;font-size:clamp(30px,4.2vw,58px);font-weight:500;
  letter-spacing:-.06em;line-height:1.05;color:#eef3fb;
}
.spiral-head p.spiral-desc{
  margin:12px 0 0;max-width:520px;
  font-size:12px;line-height:1.9;letter-spacing:.03em;color:#a3b5cb;
}
.spiral-actions{display:flex;align-items:center;gap:14px;flex:none}
.spiral-view{
  border:1px solid rgba(216,231,250,.42);background:transparent;
  border-radius:999px;padding:11px 20px;font-size:12px;letter-spacing:.06em;
  color:#e9eef6;transition:background .25s ease,color .25s ease,border-color .25s ease;
}
.spiral-view:hover{background:#e9eef6;color:#0b1626;border-color:#e9eef6}
.spiral-close{
  width:44px;height:44px;flex:none;display:grid;place-items:center;
  border:1px solid rgba(216,231,250,.42);border-radius:50%;
  background:transparent;color:#e9eef6;font-size:26px;line-height:1;
  transition:background .25s ease,color .25s ease;
}
.spiral-close:hover{background:#e9eef6;color:#0b1626}
.spiral-view:focus-visible,.spiral-close:focus-visible{
  outline:2px solid #d5b985;outline-offset:3px;
}

.spiral-body{position:relative;min-height:0;overflow:hidden}
.spiral-body .infinite-spiral{position:absolute;inset:0}
.spiral-body::before,.spiral-body::after{
  content:'';position:absolute;left:0;right:0;height:18%;z-index:200000;pointer-events:none;
}
.spiral-body::before{top:0;background:linear-gradient(rgba(15,26,45,.94),rgba(15,26,45,0))}
.spiral-body::after{bottom:0;background:linear-gradient(rgba(7,13,24,0),rgba(7,13,24,.95))}

.spiral-foot{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  margin:0 clamp(22px,3vw,40px);
  padding:clamp(11px,1.8vh,16px) 0 clamp(14px,2.2vh,20px);
  font-size:10px;letter-spacing:.18em;color:#8598b1;
  border-top:1px solid rgba(216,231,250,.16);
}

/* —— InfiniteSpiral —— */
.infinite-spiral{
  position:relative;width:100%;height:100%;min-height:320px;
  overflow:hidden;isolation:isolate;
}
.infinite-spiral__stage{position:absolute;inset:0;transform-style:preserve-3d}

.infinite-spiral__item{appearance:none;padding:0;font:inherit;text-align:left;
  position:absolute;top:50%;left:50%;display:block;
  width:var(--infinite-spiral-card-width);
  height:var(--infinite-spiral-card-height);
  overflow:hidden;
  border:1px solid rgba(216,231,250,.2);
  border-radius:var(--infinite-spiral-card-radius);
  background:rgba(216,231,250,.06);
  box-shadow:0 18px 44px rgba(2,6,14,.46);
  transform-style:preserve-3d;
  backface-visibility:hidden;
  will-change:transform,opacity,filter;
  text-decoration:none;
}
.infinite-spiral__image{
  position:absolute;inset:0;display:block;width:100%;height:100%;
  object-fit:cover;object-position:center;user-select:none;
  filter:saturate(.92) contrast(1.02);
}
.infinite-spiral__item.is-active{border-color:rgba(213,185,133,.85)}
.infinite-spiral__item.is-active .infinite-spiral__image{filter:none}

@media(max-width:1100px){
  .spiral-panel{width:86vw;height:80vh}
}
@media(max-width:720px){
  .spiral-overlay{padding:12px}
  .spiral-panel{width:94vw;height:84vh;border-radius:16px}
  .spiral-head{align-items:flex-start;flex-direction:column;gap:14px}
  .spiral-actions{align-self:flex-end}
  .spiral-foot{flex-direction:column;align-items:flex-start;gap:8px}
}

@media(prefers-reduced-motion:reduce){
  .spiral-overlay{transition:none}
  .infinite-spiral__item{appearance:none;padding:0;font:inherit;text-align:left;transition:none}
}