:root {
  --bg: #f5f4ef;
  --surface: #ffffff;
  --ink: #202722;
  --muted: #69716c;
  --line: #dfdfd8;
  --red: #8f2d27;
  --red-soft: #f6e9e6;
  --green: #2f5445;
  --green-soft: #e7f0eb;
  --amber: #9a6b24;
  --amber-soft: #f6edda;
  --shadow: 0 22px 65px rgba(28, 34, 30, .13);
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--bg); font-family: "Microsoft YaHei", "Noto Sans SC", sans-serif; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
a { color: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
#login-screen[hidden], #admin-shell[hidden] { display: none !important; }

.login-screen { min-height: 100dvh; display: grid; place-items: center; padding: 22px 16px; background: radial-gradient(circle at 50% 0%, rgba(143,45,39,.13), transparent 28rem), var(--bg); }
.login-card { width: min(100%, 410px); padding: 32px 24px 26px; text-align: center; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
.login-mark { display: grid; width: 54px; height: 54px; margin: 0 auto 18px; place-items: center; color: #fff; background: var(--red); border-radius: 15px; font-family: "Songti SC", serif; font-size: 27px; font-weight: 800; }
.login-card h1 { margin: 8px 0 9px; font-family: "Songti SC", serif; font-size: 27px; }
.login-card > p { margin: 0 0 22px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.login-card form { display: grid; gap: 13px; text-align: left; }
.login-card label { display: grid; gap: 6px; color: var(--muted); font-size: 11px; }
.login-card input { width: 100%; min-height: 44px; padding: 10px 12px; color: var(--ink); background: #fff; border: 1px solid #d5d7d2; border-radius: 9px; outline: none; }
.login-card input:focus { border-color: var(--red); box-shadow: 0 0 0 3px rgba(143,45,39,.1); }
.login-submit { min-height: 46px; margin-top: 4px; border: 0; border-radius: 9px; }
.login-submit:disabled { cursor: wait; opacity: .6; }
.login-error { min-height: 18px; margin: 0; color: var(--red); font-size: 11px; text-align: center; }
.login-card > small { display: block; margin-top: 20px; color: var(--muted); font-size: 10px; line-height: 1.6; }

.admin-header { position: sticky; z-index: 20; top: 0; display: flex; align-items: center; justify-content: space-between; min-height: 68px; padding: 11px 17px; background: rgba(255,255,255,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(15px); }
.admin-brand { display: flex; gap: 10px; align-items: center; text-decoration: none; }
.admin-brand > span { display: grid; width: 38px; height: 38px; place-items: center; color: #fff; background: var(--red); border-radius: 11px; font-family: "Songti SC", serif; font-size: 19px; font-weight: 800; }
.admin-brand strong, .admin-brand small { display: block; }
.admin-brand strong { font-size: 14px; }
.admin-brand small { margin-top: 2px; color: var(--muted); font-size: 10px; }
.admin-header nav { display: flex; gap: 10px; align-items: center; }
.admin-header nav a { display: none; color: var(--muted); font-size: 12px; text-decoration: none; }
.admin-header nav .primary { display: none; }
.logout-button { min-height: 38px; padding: 8px 10px; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 8px; font-size: 11px; font-weight: 700; }
.logout-button:hover { color: var(--red); border-color: rgba(143,45,39,.45); background: var(--red-soft); }
.primary, .secondary, .filters button, .pagination button, #upload-asset { padding: 10px 16px; border-radius: 9px; border: 1px solid transparent; font-size: 13px; font-weight: 700; }
.primary { color: #fff; background: var(--red); }
.primary:hover { background: #74231f; }
.secondary { color: var(--ink); background: #fff; border-color: var(--line); }

.admin-main { max-width: 1280px; margin: 0 auto; padding: 25px 16px 70px; }
.page-title { display: flex; align-items: end; justify-content: space-between; gap: 20px; }
.page-title > div > span, .section-label { color: var(--red); font-size: 10px; font-weight: 800; letter-spacing: .17em; }
.page-title h1 { margin: 5px 0; font-family: "Songti SC", serif; font-size: 31px; }
.page-title p { max-width: 680px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.65; }
.page-title .primary { flex: 0 0 auto; }

.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin: 23px 0; }
.stats-grid article { padding: 16px; background: var(--surface); border: 1px solid var(--line); border-radius: 13px; }
.stats-grid span, .stats-grid small { display: block; color: var(--muted); font-size: 10px; }
.stats-grid strong { display: block; margin: 5px 0 1px; font-size: 26px; }

.workspace { overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; }
.toolbar { display: flex; flex-direction: column; gap: 16px; padding: 18px 16px; border-bottom: 1px solid var(--line); }
.toolbar h2 { margin: 3px 0 0; font-size: 20px; }
.filters { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.filters label:first-child { grid-column: 1 / -1; }
.filters input, .filters select, .form-grid input, .form-grid select, .form-grid textarea, .upload-box input, .upload-box select { width: 100%; min-height: 40px; padding: 9px 11px; color: var(--ink); background: #fff; border: 1px solid #d5d7d2; border-radius: 8px; outline: none; }
.filters input:focus, .filters select:focus, .form-grid input:focus, .form-grid select:focus, .form-grid textarea:focus, .upload-box input:focus, .upload-box select:focus { border-color: var(--red); box-shadow: 0 0 0 3px rgba(143,45,39,.1); }
.filters button { color: #fff; background: var(--ink); }
.list-head { display: none; }
.item-list { min-height: 280px; }
.item-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 16px; border-bottom: 1px solid var(--line); }
.item-row:last-child { border-bottom: 0; }
.item-row:hover { background: #fafaf7; }
.item-main { min-width: 0; }
.item-main strong { display: block; overflow: hidden; margin-bottom: 4px; font-family: "Songti SC", serif; font-size: 16px; text-overflow: ellipsis; white-space: nowrap; }
.item-main small, .item-meta { color: var(--muted); font-size: 11px; }
.item-meta { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 7px 15px; align-items: center; }
.status { display: inline-flex; align-items: center; padding: 4px 8px; border-radius: 999px; font-size: 10px; font-weight: 700; }
.status-published { color: var(--green); background: var(--green-soft); }
.status-draft { color: var(--amber); background: var(--amber-soft); }
.status-archived { color: var(--muted); background: #ececea; }
.edit-button { align-self: start; padding: 7px 10px; color: var(--red); background: var(--red-soft); border: 0; border-radius: 8px; font-size: 11px; font-weight: 700; }
.loading, .empty { padding: 70px 20px; color: var(--muted); text-align: center; font-size: 13px; }
.pagination { display: flex; gap: 14px; align-items: center; justify-content: center; padding: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.pagination button { padding: 7px 11px; color: var(--ink); background: #fff; border-color: var(--line); }
.pagination button:disabled { cursor: default; opacity: .4; }

.editor-dialog { width: min(920px, calc(100% - 18px)); max-height: calc(100dvh - 18px); padding: 0; color: var(--ink); background: var(--surface); border: 0; border-radius: 16px; box-shadow: var(--shadow); }
.editor-dialog::backdrop { background: rgba(23,29,25,.68); backdrop-filter: blur(3px); }
.editor-dialog form { display: flex; flex-direction: column; max-height: calc(100dvh - 18px); }
.dialog-head { display: flex; flex: 0 0 auto; align-items: center; justify-content: space-between; padding: 17px 18px; border-bottom: 1px solid var(--line); }
.dialog-head h2 { margin: 2px 0 0; font-family: "Songti SC", serif; font-size: 21px; }
.icon-button { width: 38px; height: 38px; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 50%; font-size: 22px; }
.editor-body { flex: 1 1 auto; overflow-y: auto; padding: 18px; }
.form-section + .form-section { margin-top: 28px; padding-top: 25px; border-top: 1px solid var(--line); }
.form-section h3 { margin: 0 0 14px; font-size: 15px; }
.form-grid { display: grid; grid-template-columns: 1fr; gap: 13px; }
.form-grid label, .upload-box label { display: grid; gap: 5px; color: var(--muted); font-size: 11px; }
.form-grid textarea { resize: vertical; }
.asset-head { display: flex; gap: 20px; align-items: start; justify-content: space-between; }
.asset-head h3 { margin-bottom: 4px; }
.asset-head p { margin: 0; color: var(--muted); font-size: 10px; }
#asset-count { flex: 0 0 auto; color: var(--muted); font-size: 11px; }
.asset-admin-list { display: grid; gap: 7px; margin: 14px 0; }
.asset-row { display: grid; grid-template-columns: 1fr auto; gap: 8px 12px; align-items: center; padding: 10px; background: var(--bg); border-radius: 9px; }
.asset-row strong { display: block; overflow: hidden; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.asset-row small { color: var(--muted); font-size: 9px; }
.asset-actions { display: flex; gap: 5px; }
.asset-actions button { padding: 5px 7px; color: var(--muted); background: #fff; border: 1px solid var(--line); border-radius: 6px; font-size: 9px; }
.asset-actions .remove { color: var(--red); }
.upload-box { display: grid; gap: 10px; padding: 13px; background: #f8f7f3; border: 1px dashed #cfd1cb; border-radius: 10px; }
.upload-box .checkbox { display: flex; flex-direction: row; gap: 7px; align-items: center; }
.upload-box .checkbox input { width: 16px; min-height: 16px; }
#upload-asset { color: #fff; background: var(--ink); }
#upload-progress { width: 100%; margin-top: 10px; accent-color: var(--red); }
.model-import { display: grid; gap: 14px; margin-top: 18px; padding: 16px; background: #f3f6f3; border: 1px solid #d9e5dc; border-radius: 12px; }
.model-format-note { flex: 0 0 auto; color: var(--green); font-size: 10px; font-weight: 700; }
.model-import-grid { display: grid; gap: 10px; }
.model-import-grid label { display: grid; gap: 5px; color: var(--muted); font-size: 11px; }
.model-import-grid input, .model-import-grid select { width: 100%; min-height: 40px; padding: 9px 11px; color: var(--ink); background: #fff; border: 1px solid #d5d7d2; border-radius: 8px; }
.model-import-options { display: flex; flex-wrap: wrap; gap: 10px 15px; align-items: center; }
.model-import-options .checkbox { display: flex; flex-direction: row; gap: 7px; align-items: center; color: var(--muted); font-size: 11px; }
.model-import-options .checkbox input { width: 16px; height: 16px; margin: 0; }
#prepare-model { margin-left: auto; padding: 9px 13px; color: #fff; background: var(--green); border: 0; border-radius: 8px; font-size: 11px; font-weight: 700; }
#prepare-model:disabled { cursor: wait; opacity: .55; }
.model-import-status { min-height: 17px; margin: 0; color: var(--muted); font-size: 10px; }
.dialog-actions { display: flex; flex: 0 0 auto; align-items: center; justify-content: space-between; gap: 12px; padding: 13px 18px; background: #fafaf7; border-top: 1px solid var(--line); }
.dialog-actions > div { display: flex; gap: 8px; margin-left: auto; }
.danger-link { padding: 8px 0; color: var(--red); background: transparent; border: 0; font-size: 11px; }
.toast { position: fixed; z-index: 100; right: 17px; bottom: 17px; max-width: calc(100% - 34px); padding: 11px 14px; color: #fff; background: #27302b; border-radius: 9px; opacity: 0; transform: translateY(10px); transition: .2s; pointer-events: none; font-size: 12px; }
.toast.visible { opacity: 1; transform: none; }

@media (min-width: 720px) {
  .admin-header { padding-inline: 28px; }
  .admin-header nav a, .admin-header nav .primary, .admin-header nav .logout-button { display: inline-block; }
  .page-title .primary { display: none; }
  .admin-main { padding: 36px 28px 80px; }
  .stats-grid { grid-template-columns: repeat(4, 1fr); gap: 14px; }
  .toolbar { flex-direction: row; align-items: end; justify-content: space-between; padding: 20px 22px; }
  .filters { grid-template-columns: minmax(210px, 1fr) 130px auto; }
  .filters label:first-child { grid-column: auto; }
  .list-head { display: grid; grid-template-columns: minmax(260px, 2fr) 100px 100px 120px 56px; gap: 12px; padding: 9px 22px; color: var(--muted); background: #fafaf7; border-bottom: 1px solid var(--line); font-size: 9px; text-transform: uppercase; }
  .item-row { grid-template-columns: minmax(260px, 2fr) 100px 100px 120px 56px; gap: 12px; align-items: center; padding: 13px 22px; }
  .item-meta { display: contents; }
  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid .wide { grid-column: 1 / -1; }
  .upload-box { grid-template-columns: minmax(180px, 1.5fr) 120px minmax(120px, 1fr) auto auto; align-items: end; }
  .model-import-grid { grid-template-columns: minmax(180px, 1.2fr) minmax(180px, 1.2fr) 150px minmax(160px, 1fr); align-items: end; }
  .editor-body { padding: 24px 28px; }
}

@media (prefers-reduced-motion: reduce) { * { transition-duration: .01ms !important; } }