/* 后台样式 */
.admin-body, .login-body { padding-bottom: 0; background: #090c12; }
.admin-shell { display: flex; min-height: 100vh; }

.admin-side {
  width: 224px; flex: 0 0 224px; border-right: 1px solid var(--line);
  background: linear-gradient(180deg, #101722, #0a0e14); position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; padding: 18px 12px;
}
.aside-brand { display: flex; gap: 10px; align-items: center; padding: 4px 8px 18px; border-bottom: 1px solid var(--line); margin-bottom: 14px; }
.aside-brand strong { display: block; font-size: 14px; }
.aside-brand small { color: var(--muted); font-size: 11.5px; }
.aside-nav { display: flex; flex-direction: column; gap: 3px; flex: 1; }
.aside-nav a {
  display: flex; align-items: center; gap: 10px; padding: 9px 11px; border-radius: 9px;
  color: var(--muted); font-size: 13.5px; transition: .15s;
}
.aside-nav a i { font-style: normal; width: 16px; text-align: center; opacity: .85; }
.aside-nav a:hover { background: rgba(255,255,255,.05); color: var(--text); }
.aside-nav a.on { background: rgba(230,185,92,.14); color: var(--gold-2); font-weight: 600; }
.aside-foot { border-top: 1px solid var(--line); padding-top: 12px; display: flex; flex-direction: column; gap: 8px; }
.aside-foot a { font-size: 12.5px; color: var(--muted); padding: 4px 8px; border-radius: 7px; }
.aside-foot a:hover { color: var(--gold); background: rgba(255,255,255,.04); }

.admin-main { flex: 1; min-width: 0; }
.admin-top {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 18px 26px; border-bottom: 1px solid var(--line); background: rgba(12,16,22,.7);
  position: sticky; top: 0; z-index: 20; backdrop-filter: blur(10px);
}
.admin-top h1 { font-size: 18px; }
.admin-top-right { display: flex; align-items: center; gap: 12px; }
.admin-body-inner { padding: 22px 26px 60px; }
.block-title { font-size: 15.5px; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.block-title::before { content: ""; width: 3px; height: 15px; border-radius: 2px; background: var(--gold); }

.flash {
  padding: 11px 15px; border-radius: 10px; font-size: 13.5px; margin-bottom: 16px;
  border: 1px solid rgba(47,191,113,.35); background: rgba(47,191,113,.12); color: #a6f3c9;
}
.flash.err { border-color: rgba(255,93,93,.35); background: rgba(255,93,93,.12); color: #ffc0c0; }

.adm-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.adm-g { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: rgba(255,255,255,.02); }
.adm-g-thumb { position: relative; height: 150px; background: #0b1017; }
.adm-g-thumb img { width: 100%; height: 100%; object-fit: cover; }
.adm-g-form { padding: 10px; display: grid; gap: 7px; }
.adm-g-form input { padding: 7px 9px; font-size: 12.5px; }

.login-body { display: grid; place-items: center; min-height: 100vh; padding: 20px; }
.login-card {
  width: 100%; max-width: 380px; background: linear-gradient(180deg, #161e2b, #0d121a);
  border: 1px solid var(--line-strong); border-radius: 18px; padding: 30px 26px;
  box-shadow: 0 24px 60px rgba(0,0,0,.5);
}
.login-brand { display: flex; gap: 11px; align-items: center; margin-bottom: 22px; }
.login-brand strong { display: block; font-size: 15px; }
.login-brand small { color: var(--muted); font-size: 12px; }
input[type=file] {
  width: 100%; background: rgba(255,255,255,.04); border: 1px dashed var(--line-strong);
  color: var(--muted); border-radius: 10px; padding: 14px; font-size: 13px;
}
input[type=checkbox] { accent-color: var(--gold); }

@media (max-width: 900px) {
  .admin-shell { flex-direction: column; }
  .admin-side {
    width: 100%; flex: none; height: auto; position: static; flex-direction: row;
    align-items: center; gap: 10px; padding: 12px 14px; overflow-x: auto;
  }
  .aside-brand { border: none; margin: 0; padding: 0 10px 0 0; flex: 0 0 auto; }
  .aside-brand small { display: none; }
  .aside-nav { flex-direction: row; gap: 5px; flex: 1; }
  .aside-nav a { white-space: nowrap; padding: 7px 10px; font-size: 12.5px; }
  .aside-nav a i { display: none; }
  .aside-foot { flex-direction: row; border: none; padding: 0 0 0 8px; flex: 0 0 auto; }
  .admin-body-inner { padding: 16px 14px 50px; }
  .admin-top { padding: 14px; }
  .grid[style*="grid-template-columns"] { grid-template-columns: 1fr !important; }
}