/* ???????? UI */
:root{
  --bg:#f3f5f8;
  --surface:#ffffff;
  --surface-soft:#f8fafc;
  --line:#e4e8ef;
  --line-strong:#d7dde7;
  --text:#111827;
  --text-soft:#4b5563;
  --muted:#7b8494;
  --side:#171a21;
  --side-2:#20242d;
  --side-hover:#2b303b;
  --primary:#df3324;
  --primary-dark:#bd261b;
  --danger:#a9281c;
  --shadow:0 14px 34px rgba(15,23,42,.06);
  --shadow-soft:0 8px 22px rgba(15,23,42,.04);
  --radius:10px;
}
*{box-sizing:border-box}
html{min-height:100%;background:var(--bg)}
body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit}
.shell{display:grid;grid-template-columns:236px minmax(0,1fr);min-height:100vh;background:linear-gradient(180deg,#f7f8fb 0%,var(--bg) 38%,#eef1f5 100%)}
.side{position:sticky;top:0;align-self:start;height:100vh;overflow-y:auto;background:linear-gradient(180deg,#1f2229 0%,#171a21 54%,#13161c 100%);color:#fff;padding:26px 18px;border-right:1px solid rgba(255,255,255,.06)}
.brand{display:flex;flex-direction:column;align-items:flex-start;gap:9px;margin-bottom:26px;padding:0 6px 6px}
.brand img{display:block;width:166px;max-width:100%;height:auto}
.brand span{font-size:15px;font-weight:800;color:#fff;line-height:1;letter-spacing:.02em}
.side .muted{color:#8f98a8!important}
.side a{display:flex;align-items:center;min-height:44px;padding:0 14px;border-radius:8px;color:#d4dae5;margin:6px 0;font-weight:700;transition:background .18s ease,color .18s ease,transform .18s ease}
.side a.active,.side a:hover{background:var(--side-hover);color:#fff;transform:translateX(2px)}
.side a.active{box-shadow:inset 3px 0 0 var(--primary)}
.main{min-width:0;padding:34px 34px 42px}
.top{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:24px}
h1,h2,h3{margin:0;color:var(--text);line-height:1.25}
h1{font-size:30px;font-weight:900;letter-spacing:0}
h2{font-size:21px;font-weight:900;margin-bottom:18px}
h3{font-size:18px;font-weight:900;margin-bottom:14px}
p{margin:0 0 12px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:18px;box-shadow:var(--shadow-soft)}
.card:hover{border-color:#dce2ec}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.field-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;align-items:end}
label{display:block;font-size:13px;color:var(--text-soft);font-weight:700;margin-bottom:7px}
input,select,textarea{width:100%;border:1px solid var(--line-strong);border-radius:8px;padding:11px 13px;font:inherit;background:#fff;color:var(--text);outline:none;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}
input::placeholder,textarea::placeholder{color:#9aa3b2}
input:focus,select:focus,textarea:focus{border-color:rgba(223,51,36,.55);box-shadow:0 0 0 3px rgba(223,51,36,.11)}
textarea{min-height:180px;resize:vertical}.md{min-height:420px}
.btns{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:38px;border:0;border-radius:8px;padding:9px 15px;background:var(--primary);color:#fff;font-weight:800;cursor:pointer;line-height:1.2;transition:transform .16s ease,box-shadow .16s ease,background .16s ease,opacity .16s ease}
.btn:hover{background:var(--primary-dark);box-shadow:0 8px 18px rgba(223,51,36,.18);transform:translateY(-1px)}
.btn.secondary{background:#242933;color:#fff}.btn.secondary:hover{background:#181c23;box-shadow:0 8px 18px rgba(15,23,42,.12)}
.btn.ghost{background:#eef1f6;color:#222936}.btn.ghost:hover{background:#e3e8f0;box-shadow:none}
.btn.danger{background:var(--danger)}.btn.danger:hover{background:#8f1f16;box-shadow:0 8px 18px rgba(169,40,28,.18)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft)}
table{width:100%;border-collapse:separate;border-spacing:0;min-width:980px;background:#fff}
th,td{padding:14px 16px;border-bottom:1px solid #edf1f6;text-align:left;font-size:14px;vertical-align:middle}
th{position:sticky;top:0;z-index:1;background:#f8fafc;color:#5d6676;font-weight:900;white-space:nowrap}
tr:last-child td{border-bottom:0}tbody tr{transition:background .15s ease}tbody tr:hover{background:#fbfcfe}
.muted{color:var(--muted)}.small{font-size:12px}.ok{color:#0f8a4b}.err{color:#c6261e}
.tag{display:inline-flex;align-items:center;justify-content:center;padding:5px 10px;border-radius:999px;background:#eef2f7;color:#354052;font-size:12px;font-weight:800;line-height:1.15}
.msg{position:fixed;right:24px;bottom:24px;z-index:30;background:#202228;color:#fff;padding:13px 16px;border-radius:8px;box-shadow:0 14px 34px rgba(0,0,0,.18);display:none}
.preview{border:1px solid var(--line);border-radius:8px;background:#fff;padding:18px;max-height:520px;overflow:auto}
.pre{white-space:pre-wrap;word-break:break-all;background:#111319;color:#dce2ee;border-radius:8px;padding:14px;max-height:320px;overflow:auto;font-size:13px;line-height:1.6}
.login{max-width:430px;margin:12vh auto;background:#fff;border:1px solid var(--line);border-radius:12px;padding:32px;box-shadow:var(--shadow)}.login h1{margin-top:0}.stat{font-size:30px;font-weight:900;letter-spacing:0}
.actions{white-space:nowrap}.image-list img{max-width:180px;max-height:100px;display:block;border-radius:6px;margin:6px 0}.hide{display:none}
.media-library{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:16px}.media-card{border:1px solid var(--line);border-radius:10px;background:#fff;padding:12px;box-shadow:var(--shadow-soft)}.media-card img{width:100%;height:130px;object-fit:contain;background:#f6f7f9;border-radius:8px}.media-card strong{display:block;margin-top:10px;font-size:14px;line-height:1.4}.media-card .meta{font-size:12px;color:var(--muted);word-break:break-all;margin:6px 0 10px}.media-card .btns{gap:6px}.media-card .btn{padding:7px 10px;font-size:12px;min-height:32px}
.ai-image-preview{margin-top:16px}.ai-image-preview-card{display:grid;grid-template-columns:minmax(220px,360px) 1fr;gap:18px;align-items:start;border:1px solid var(--line);border-radius:10px;background:#fff;padding:14px;box-shadow:var(--shadow-soft)}.ai-image-preview-card img{width:100%;max-height:280px;object-fit:contain;background:#f6f7f9;border-radius:8px}.ai-image-preview-card p{margin:8px 0;line-height:1.6;word-break:break-all}
/* Article list table: keep operational columns compact and make the title area readable. */
.articles-table{table-layout:fixed;min-width:1180px}.articles-table th:nth-child(1){width:52%}.articles-table th:nth-child(2){width:84px}.articles-table th:nth-child(3){width:72px}.articles-table th:nth-child(4),.articles-table th:nth-child(5){width:124px}.articles-table th:nth-child(6){width:330px}.article-title-cell strong{display:block;font-size:15px;line-height:1.45;margin-bottom:5px;color:var(--text)}.article-summary{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.55;max-width:920px}.article-date{white-space:normal;line-height:1.45;color:#30343d}.article-date span{color:#606879}.articles-table .actions{white-space:normal;display:flex;flex-wrap:wrap;gap:8px;align-items:center}.articles-table .actions .btn{padding:8px 12px;min-width:52px;text-align:center;font-size:13px;line-height:1.2}.articles-table .actions .btn:nth-child(2){min-width:76px}.articles-table td{padding-top:14px;padding-bottom:14px}
@media(max-width:1200px){.main{padding:26px}.field-row{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:900px){.shell{display:block}.side{position:static;height:auto}.field-row,.grid-2,.grid-3{grid-template-columns:1fr}.main{padding:18px}.top{align-items:flex-start;flex-direction:column}.ai-image-preview-card{grid-template-columns:1fr}.articles-table{min-width:980px}.articles-table th:nth-child(1){width:42%}.articles-table th:nth-child(6){width:300px}}