/* 极光壁纸 · 样式 */
:root{
  --bg:#0e0f14; --bg2:#161821; --card:#1c1e28; --line:#2a2d3a; --text:#e9eaf0; --muted:#8b8fa3;
  --pri:#7c5cff; --pri2:#00d4ff; --pink:#ff4d8d; --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:14px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;min-height:100vh}
body.noscroll{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
[hidden]{display:none!important}
.muted{color:var(--muted);font-size:13px}
.small{font-size:12px}

/* 顶栏 */
.topbar{position:sticky;top:0;z-index:50;background:rgba(14,15,20,.82);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid rgba(255,255,255,.06)}
.topbar-inner{max-width:1480px;margin:0 auto;display:flex;align-items:center;gap:18px;padding:10px 20px}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:18px;white-space:nowrap}
.logo-mark{font-size:22px}
.nav{display:flex;gap:6px}
.nav-item{padding:7px 14px;border-radius:999px;color:var(--muted);white-space:nowrap;transition:.2s}
.nav-item:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-item.active{color:#fff;background:rgba(124,92,255,.22)}
.nav-avatar{color:#fff;background:linear-gradient(135deg,var(--pink),var(--pri));box-shadow:0 4px 16px rgba(255,77,141,.35)}
.nav-avatar:hover,.nav-avatar.active{background:linear-gradient(135deg,#ff6aa0,#8f74ff);color:#fff}
.fav-count{font-size:11px;background:var(--pink);color:#fff;border-radius:999px;padding:0 6px;margin-left:2px}
.fav-count:empty{display:none}
.search{flex:1;display:flex;max-width:460px;margin-left:auto;background:var(--bg2);border:1px solid var(--line);border-radius:999px;overflow:hidden;transition:.2s}
.search:focus-within{border-color:var(--pri);box-shadow:0 0 0 3px rgba(124,92,255,.2)}
.search input{flex:1;background:none;border:0;outline:0;color:var(--text);padding:9px 16px;font-size:14px;min-width:0}
.search button{padding:0 16px;font-size:16px}

/* 头图 */
.hero{position:relative;height:380px;display:flex;align-items:flex-end;overflow:hidden;background:radial-gradient(120% 120% at 10% 0%,#2b1f5c 0%,#0e0f14 60%)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transform:scale(1.04);transition:opacity 1s,transform 6s}
.hero-bg.show{opacity:1;transform:scale(1)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,15,20,.1) 0%,rgba(14,15,20,.45) 55%,var(--bg) 100%)}
.hero-content{position:relative;z-index:2;max-width:1480px;width:100%;margin:0 auto;padding:0 20px 34px}
.hero h1{font-size:40px;font-weight:800;letter-spacing:1px;text-shadow:0 2px 20px rgba(0,0,0,.5)}
.hero-sub{color:#d6d8e4;margin:6px 0 16px;max-width:760px;text-shadow:0 1px 8px rgba(0,0,0,.6)}
.hero-avatar{height:260px;background:radial-gradient(90% 140% at 85% 0%,rgba(255,77,141,.35),transparent 60%),radial-gradient(90% 140% at 0% 0%,rgba(124,92,255,.4),transparent 60%),var(--bg)}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:#cfd1dc}
.tag{padding:4px 12px;border-radius:999px;background:rgba(255,255,255,.12);backdrop-filter:blur(6px);font-size:13px;transition:.2s}
.tag:hover{background:var(--pri)}
.hero-dl{position:absolute;right:20px;bottom:34px;z-index:3;padding:8px 16px;border-radius:999px;background:rgba(0,0,0,.45);border:1px solid rgba(255,255,255,.2);font-size:13px;backdrop-filter:blur(6px)}
.hero-dl:hover{background:var(--pri)}

/* 区块 */
main{max-width:1480px;margin:0 auto}
.hero+.block,.block{padding:22px 20px 8px}
.block-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.block-head h2{font-size:20px;font-weight:700}
.tip{margin:-4px 0 12px}

/* 分类与筛选 */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.chip{padding:6px 14px;border-radius:999px;background:var(--bg2);border:1px solid var(--line);color:#cdd0dc;transition:.2s;font-size:13px}
.chip:hover{border-color:var(--pri);color:#fff}
.chip.on{background:linear-gradient(135deg,var(--pri),#5a8bff);border-color:transparent;color:#fff}
.chip-gen.on{background:linear-gradient(135deg,var(--pink),var(--pri))}
.chip-sep{align-self:center;color:var(--muted);font-size:12px;padding:0 4px 0 10px;border-left:1px solid var(--line);margin-left:4px}
.toolbar{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:16px;color:var(--muted);font-size:13px}
.toolbar label{display:flex;align-items:center;gap:6px}
.toolbar select{background:var(--bg2);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:6px 8px;outline:0}
.seg{display:inline-flex;background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:3px}
.seg button{padding:5px 12px;border-radius:7px;font-size:13px;color:var(--muted)}
.seg button.on{background:var(--pri);color:#fff}

/* 网格 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.grid-portrait{grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}
.grid-portrait .card{aspect-ratio:9/16}
.grid-feature{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.grid-feature .card:first-child{grid-column:span 2;grid-row:span 2;aspect-ratio:auto}
.grid-avatar{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:18px}
.strip{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(260px,300px);gap:14px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory}
.strip .card{scroll-snap-align:start}
.strip::-webkit-scrollbar{height:6px}.strip::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px}
.skeleton-row{height:170px;border-radius:var(--radius);background:linear-gradient(90deg,var(--bg2),#20232e,var(--bg2));background-size:200% 100%;animation:sk 1.4s infinite;grid-column:1/-1;width:100%}
@keyframes sk{to{background-position:-200% 0}}

.card{position:relative;aspect-ratio:16/10;border-radius:var(--radius);overflow:hidden;cursor:pointer;background:var(--card);transform:translateZ(0);transition:transform .25s,box-shadow .25s;outline:0}
.card:hover,.card:focus-visible{transform:translateY(-3px);box-shadow:0 12px 30px rgba(0,0,0,.45)}
.card img{width:100%;height:100%;object-fit:cover;display:block;opacity:0;transition:opacity .45s,transform .5s}
.card img.loaded{opacity:1}
.card img.broken{opacity:.15}
.card:hover img{transform:scale(1.05)}
.card-ov{position:absolute;inset:auto 0 0 0;padding:26px 10px 8px;display:flex;justify-content:space-between;align-items:flex-end;gap:6px;background:linear-gradient(transparent,rgba(0,0,0,.72));font-size:12px;opacity:0;transition:.25s}
.card:hover .card-ov,.card:focus-visible .card-ov{opacity:1}
.badge{background:rgba(255,255,255,.16);padding:1px 8px;border-radius:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:70%}
.stats{white-space:nowrap;color:#e6e6ee}
.heart{position:absolute;top:8px;right:8px;width:34px;height:34px;border-radius:50%;background:rgba(0,0,0,.45);backdrop-filter:blur(6px);font-size:17px;line-height:34px;text-align:center;opacity:0;transform:scale(.85);transition:.2s}
.card:hover .heart,.heart.on{opacity:1;transform:scale(1)}
.heart.on{color:var(--pink);background:rgba(255,255,255,.92)}
.heart:hover{transform:scale(1.12)}
.card-avatar{aspect-ratio:1/1}
.shape-circle .card-avatar{border-radius:50%}
.shape-circle .card-avatar .heart{top:4%;right:4%}
.card-avatar .card-ov{justify-content:center}
.card-gen{background:#efedf7!important}
.card-gen img{object-fit:contain;padding:6%}

.loadmore{text-align:center;color:var(--muted);padding:26px 0 40px;cursor:pointer}
.empty{grid-column:1/-1;text-align:center;color:var(--muted);padding:60px 10px}
.empty a{color:var(--pri2)}
.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.25);border-top-color:var(--pri2);border-radius:50%;animation:spin .8s linear infinite;vertical-align:-3px}
@keyframes spin{to{transform:rotate(360deg)}}

/* 预览弹窗 */
.viewer{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center}
.viewer-backdrop{position:absolute;inset:0;background:rgba(6,7,10,.9);backdrop-filter:blur(8px)}
.viewer-body{position:relative;display:flex;width:min(1400px,96vw);height:min(860px,92vh);background:var(--bg2);border-radius:18px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.viewer-stage{position:relative;flex:1;display:flex;align-items:center;justify-content:center;background:#08090c;min-width:0}
.viewer-stage img#vImg{max-width:100%;max-height:100%;object-fit:contain;transition:filter .4s}
.viewer-stage img#vImg:not(.hd){filter:blur(.5px)}
.stage-avatar img#vImg{max-width:min(78%,520px);max-height:78%;border-radius:18px}
.stage-avatar img#vImg.round{border-radius:50%}
.viewer-loading{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);background:rgba(0,0,0,.6);padding:6px 14px;border-radius:999px;font-size:12px;display:flex;gap:8px;align-items:center}
.avatar-previews{position:absolute;left:16px;bottom:16px;display:flex;gap:12px;align-items:flex-end}
.avatar-previews img{border-radius:50%;border:2px solid rgba(255,255,255,.2);object-fit:cover;background:#222}
.viewer-side{width:340px;flex-shrink:0;padding:22px;overflow-y:auto;border-left:1px solid var(--line)}
.viewer-side h3{font-size:18px;margin-bottom:4px}
.v-desc{color:var(--muted);font-size:12px;margin-bottom:10px}
.v-meta{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:12px 0}
.v-meta div{background:var(--card);border-radius:10px;padding:8px 10px}
.v-meta span{display:block;color:var(--muted);font-size:11px}
.v-meta b{font-size:13px;font-weight:600}
.v-colors{display:flex;gap:6px;margin-bottom:14px}
.swatch{width:26px;height:26px;border-radius:7px;border:2px solid rgba(255,255,255,.15)}
.v-actions{display:flex;gap:10px;margin-bottom:16px}
.btn{flex:1;text-align:center;padding:10px 12px;border-radius:10px;background:var(--card);border:1px solid var(--line);font-weight:600;transition:.2s}
.btn:hover{border-color:var(--pri)}
.btn-primary{background:linear-gradient(135deg,var(--pri),#5a8bff);border-color:transparent;color:#fff;flex:1.6}
.btn-primary:hover{filter:brightness(1.1)}
.btn-fav.on{color:var(--pink);border-color:var(--pink);background:rgba(255,77,141,.1)}
.size-group{margin-bottom:12px}
.size-group h4{font-size:13px;color:#cfd1dc;margin-bottom:6px;font-weight:600;display:flex;justify-content:space-between;align-items:center}
.round-opt{font-weight:400;color:var(--muted);font-size:12px;display:flex;align-items:center;gap:4px;cursor:pointer}
.size-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(92px,1fr));gap:6px}
.size{display:flex;flex-direction:column;align-items:center;padding:6px 4px;border-radius:8px;background:var(--card);border:1px solid var(--line);transition:.15s}
.size:hover{border-color:var(--pri2);background:rgba(0,212,255,.08)}
.size b{font-size:12px;font-weight:600}
.size small{font-size:10px;color:var(--muted)}
.size.up{opacity:.55}
.size.up small::after{content:" · 放大"}
.v-source{display:inline-block;margin-top:8px;color:var(--pri2);font-size:12px}
.viewer-close{position:absolute;top:14px;right:18px;z-index:3;width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.1);font-size:18px}
.viewer-close:hover{background:var(--pink)}
.viewer-nav{position:absolute;top:50%;z-index:3;transform:translateY(-50%);width:46px;height:70px;font-size:40px;line-height:1;background:rgba(255,255,255,.08);border-radius:12px;color:#fff}
.viewer-nav:hover{background:var(--pri)}
.viewer-nav.prev{left:12px}
.viewer-nav.next{right:12px}

.toast{position:fixed;left:50%;bottom:40px;transform:translate(-50%,20px);background:rgba(30,32,44,.95);border:1px solid var(--line);padding:10px 20px;border-radius:999px;opacity:0;pointer-events:none;transition:.3s;z-index:200;font-size:13px}
.toast.show{opacity:1;transform:translate(-50%,0)}

.footer{text-align:center;color:var(--muted);font-size:12px;padding:30px 20px 40px;border-top:1px solid var(--line);margin-top:30px;line-height:2}
.footer a{color:#b9bcd0}

/* NSFW */
.nsfw-pill{padding:6px 12px;border-radius:999px;background:rgba(255,77,141,.15);border:1px solid var(--pink);color:#ff8fb6;font-size:12px;white-space:nowrap}
.nsfw-pill:hover{background:var(--pink);color:#fff}
.seg-nsfw{border-color:rgba(255,77,141,.5);align-items:center}
.seg-nsfw button.on{background:var(--pink)}
.blur-opt{font-size:12px;color:var(--muted);padding:0 8px;display:flex;align-items:center;gap:4px;cursor:pointer}
.card.blur img{filter:blur(22px) saturate(.8);transform:scale(1.1)}
.card.blur:hover img{filter:none;transform:scale(1.05)}
.pur-badge{position:absolute;top:8px;left:8px;z-index:2;font-size:11px;font-weight:700;padding:1px 7px;border-radius:6px;background:rgba(0,0,0,.55);color:#ffd36b}
.pur-badge.nsfw{background:var(--pink);color:#fff}
.shape-circle .pur-badge{top:6%;left:50%;transform:translateX(-50%)}

/* 响应式 */
@media (max-width:900px){
  .topbar-inner{flex-wrap:wrap;gap:10px;padding:10px 14px}
  .search{order:3;max-width:none;flex-basis:100%}
  .nav{margin-left:auto}
  .nav-item{padding:6px 10px;font-size:13px}
  .hero{height:300px}.hero h1{font-size:28px}
  .viewer-body{flex-direction:column;height:94vh;width:100vw;border-radius:0}
  .viewer-stage{flex:none;height:46vh}
  .viewer-side{width:auto;border-left:0;border-top:1px solid var(--line)}
  .viewer-nav{top:23vh;width:38px;height:56px;font-size:30px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}
  .grid-feature .card:first-child{grid-column:span 2;grid-row:auto;aspect-ratio:16/10}
  .grid-avatar{grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:12px}
  .card-ov{opacity:1;padding:18px 8px 6px;font-size:11px}
  .heart{opacity:1;transform:scale(1);width:30px;height:30px;line-height:30px;font-size:15px}
  .hero-dl{display:none}
}
@media (max-width:520px){
  .logo span:last-child{display:none}
  .grid-portrait{grid-template-columns:repeat(2,1fr)}
}