.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--nav-height);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 28px;
  background:var(--backdrop);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid var(--border);
}
.brand{display:flex;align-items:center;gap:10px;cursor:pointer}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#c9a14e,#a9773c);
  color:#fff;font-size:19px;font-weight:700;
  box-shadow:0 4px 12px rgba(169,119,60,.35);
  font-family:var(--font-serif);
}
.brand-name{font-family:var(--font-serif);font-size:19px;font-weight:700;letter-spacing:.04em}
.brand-name em{font-style:normal;color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-link{
  color:var(--text-muted);font-size:14px;padding:7px 14px;border-radius:var(--radius-full);
  transition:all .2s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft)}
.theme-toggle{
  width:38px;height:38px;border-radius:var(--radius-full);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-muted);border:1px solid var(--border);
  background:var(--surface);transition:all .2s ease;
}
.theme-toggle:hover{color:var(--primary);border-color:var(--primary)}
.theme-toggle svg{width:18px;height:18px}
[data-theme="dark"] .icon-sun{display:none}
[data-theme="dark"] .icon-moon{display:inline}
.icon-sun{display:inline}
.icon-moon{display:none}
.user-avatar{
  width:36px;height:36px;border-radius:50%;object-fit:cover;
  border:2px solid var(--border-strong);cursor:pointer;transition:border-color .2s;
}
.user-avatar:hover{border-color:var(--primary)}
.user-menu{position:relative}
.user-dropdown{
  position:absolute;top:48px;right:0;min-width:170px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:14px;padding:8px;box-shadow:var(--shadow-lg);
  display:none;z-index:1001;
}
.user-dropdown.show{display:flex;flex-direction:column}
.user-dropdown a{
  display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:10px;
  color:var(--text);font-size:13.5px;cursor:pointer;
}
.user-dropdown a:hover{background:var(--surface-2);color:var(--primary)}
.user-dropdown .sep{border:none;border-top:1px solid var(--border);margin:6px 4px}
.main-wrap{padding-top:var(--nav-height);min-height:calc(100vh - var(--nav-height))}
.page{display:none}
.page.active{display:block;animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.filter-bar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin:26px 0 22px}
.search-box{position:relative;flex:1;min-width:220px;max-width:360px}
.search-box svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--text-faint);pointer-events:none}
.search-box input{
  width:100%;padding:10px 14px 10px 38px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-full);
  color:var(--text);font-size:13.5px;outline:none;transition:border-color .2s,box-shadow .2s;
}
.search-box input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.seg{display:flex;gap:4px;background:var(--surface);border:1px solid var(--border);padding:4px;border-radius:var(--radius-full)}
.seg button{
  padding:7px 18px;border-radius:var(--radius-full);font-size:13px;
  color:var(--text-muted);transition:all .2s ease;
}
.seg button:hover{color:var(--primary)}
.seg button.active{background:var(--primary);color:#fff;box-shadow:0 3px 10px rgba(169,119,60,.3)}
.chips{display:flex;gap:8px;flex-wrap:wrap;width:100%}
.chip{
  padding:6px 16px;border-radius:var(--radius-full);font-size:12.5px;
  background:var(--surface);border:1px solid var(--border);
  color:var(--text-muted);cursor:pointer;transition:all .2s ease;
}
.chip:hover{border-color:var(--primary);color:var(--primary)}
.chip.active{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);font-weight:600}
.image-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));
  gap:20px;
}
.section-head{
  display:flex;align-items:baseline;justify-content:space-between;
  margin-bottom:8px;
}
.section-title{
  font-size:13px;color:var(--text-muted);letter-spacing:.05em;
  display:flex;align-items:center;gap:10px;
}
.section-title::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--border),transparent)}
.page-head{
  display:flex;justify-content:space-between;align-items:center;
  margin:26px 0 20px;
}
.page-head h2{font-size:23px;letter-spacing:.02em}
.page-head .sub{color:var(--text-muted);font-size:13px;margin-top:2px}
.footer{
  margin-top:70px;border-top:1px solid var(--border);
  padding:30px 0 44px;color:var(--text-muted);font-size:12.5px;
  display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;
}
.footer .brand-line{font-family:var(--font-serif);color:var(--text-faint);letter-spacing:.12em}
.detail-page{
  position:fixed;inset:0;background:var(--bg);z-index:1500;
  overflow-y:auto;display:none;
}
.detail-page.show{display:block;animation:fadeIn .25s ease}
.detail-header{
  position:sticky;top:0;z-index:10;
  background:var(--backdrop);backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid var(--border);
  padding:13px 24px;display:flex;align-items:center;gap:14px;
}
.detail-main{max-width:920px;margin:0 auto;padding:28px 20px 60px}
.detail-image{
  width:100%;max-height:72vh;object-fit:contain;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);background:var(--surface-2);
}
.detail-info{display:flex;flex-direction:column;align-items:stretch;gap:12px;margin:24px 0}
.detail-info h1{font-size:24px;letter-spacing:.02em;margin:0}
.detail-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.detail-uploader{display:flex;align-items:center;gap:10px;color:var(--text-muted);font-size:13.5px}
.detail-uploader img{width:30px;height:30px;border-radius:50%;object-fit:cover;border:1px solid var(--border)}
.meta-dots{color:var(--text-faint)}
.detail-info-line{font-size:12.5px;color:var(--text-muted);background:var(--bg-soft);border-radius:8px;padding:6px 10px;display:inline-block;align-self:flex-start}
.detail-desc{color:var(--text-muted);font-size:13.5px;line-height:1.7;white-space:pre-wrap;word-break:break-word;margin-top:10px;padding-left:12px;border-left:3px solid var(--primary)}
.detail-desc:empty{display:none}
.empty-state{
  text-align:center;padding:80px 20px;color:var(--text-muted);
}
.empty-state .icon{font-size:44px;margin-bottom:12px}
.empty-state h3{font-size:17px;color:var(--text);margin-bottom:6px}
.load-more{text-align:center;padding:26px}
@media (max-width:768px){
  .navbar{padding:0 14px}
  .brand .brand-name{font-size:16px;display:none}
  .brand .brand-name.show-small{display:inline}
  .nav-link{display:none}
  .image-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .container{padding:0 14px}
  .filter-bar{margin:16px 0}
  .detail-left h1{font-size:20px}
  .modal{width:94%}
  .batch-bar{width:auto;padding:9px 14px;font-size:12.5px}
  .card-check{display:none}
}
@media (max-width:480px){
  .image-grid{grid-template-columns:1fr 1fr;gap:10px}
  .seg button{padding:6px 12px;font-size:12px}
  .batch-bar{bottom:14px}
  .filter-bar{flex-wrap:wrap;gap:10px}
  .search-box{flex:1 1 100%}
}