:root{--bg:#f5f6fa;--nav:#202435;--text:#202435;--muted:#7c8395;--line:#e8eaf0;--p:#665cf4}*{box-sizing:border-box}body{margin:0;font:14px/1.6 "Segoe UI","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text)}button,input,select,textarea{font:inherit}button{cursor:pointer;border:0;border-radius:9px;background:#eef0f5;color:#4e566b;padding:9px 14px;transition:background .15s}button:hover{background:#e0dffc}button:disabled{opacity:.45;cursor:default}.primary{background:var(--p);color:white}.danger{background:#fff0f0;color:#bd3434}h1,h2,h3,p{margin-top:0}h1{font-size:24px}h2{font-size:20px}small,.muted{color:var(--muted)}#app{display:grid;grid-template-columns:230px 1fr;min-height:100vh}#app[hidden],section[hidden]{display:none}aside{background:var(--nav);color:white;padding:26px 16px;position:sticky;top:0;height:100vh;overflow:auto}aside h2{margin-bottom:0}aside .muted{color:#a2a9be}nav h3{font-size:11px;color:#8e96ae;margin:24px 10px 5px}nav button{display:block;width:100%;text-align:left;background:none;color:#c8cddd;margin:2px 0}nav button.active,nav button:hover{background:#35394e;color:white}#logout{margin-top:24px}main{padding:30px;min-width:0}header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}#toolbar,footer{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin:18px 0}#toolbar input{max-width:240px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}.stat,.panel{background:white;border:1px solid var(--line);border-radius:14px;padding:20px}.stat b{display:block;font-size:30px}.panel{margin-top:18px}.tablewrap{background:white;border:1px solid var(--line);border-radius:14px;overflow:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--line);max-width:340px;overflow-wrap:anywhere}th{font-size:12px;color:var(--muted);white-space:nowrap}td button{margin:3px;padding:5px 9px;font-size:12px}td img{width:74px;height:70px;border-radius:10px;object-fit:contain;background:white;cursor:zoom-in}.tag{background:#efefff;color:var(--p);padding:3px 9px;border-radius:20px;white-space:nowrap}.tag.pending,.tag.draft{background:#fff1df;color:#a46d18}.tag.rejected,.tag.offline{background:#ffeaea;color:#b44343}.tag.approved,.tag.live{background:#e8f8f1;color:#24855c}.empty{text-align:center;padding:80px 20px;background:white;border-radius:14px;color:var(--muted)}input,select,textarea{border:1px solid #dfe2e9;border-radius:8px;padding:10px;background:white;max-width:100%;color:var(--text)}input:not([type=checkbox]),select,textarea{width:100%}textarea{min-height:95px;resize:vertical}label{display:block;color:#687083;font-size:12px;margin-bottom:14px}label input,label textarea,label select{display:block;margin-top:5px;color:var(--text)}label.check{display:flex;align-items:center;gap:8px}.login{min-height:100vh;display:grid;place-items:center;background:radial-gradient(at top left,#e7e2ff,transparent 60%),var(--bg)}.login form{width:400px;max-width:92vw;background:white;padding:36px;border-radius:22px;box-shadow:0 18px 80px #32326612}.logo{font-size:36px;color:var(--p)}.login .primary{width:100%}dialog{border:0;border-radius:18px;width:660px;max-width:94vw;max-height:90vh;padding:25px;box-shadow:0 20px 90px #0003}dialog::backdrop{background:#20243577}dialog header{position:sticky;top:-25px;padding-top:10px;background:white;z-index:1}#fields{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}#fields label.wide{grid-column:1/-1}dialog footer{justify-content:flex-end}.coverpreview{width:100%;aspect-ratio:16/7;object-fit:cover;border-radius:14px}.previewtext{padding:12px;border-radius:10px;background:#f4f2ff}#toast{position:fixed;bottom:24px;right:24px;background:var(--nav);color:white;padding:12px 20px;border-radius:10px;opacity:0;pointer-events:none;transition:.2s}#toast.show{opacity:1}#formError,#loginError{color:#bb3434}.loading{padding:70px;text-align:center;color:var(--muted)}@media(max-width:800px){#app{grid-template-columns:175px 1fr}aside{padding:18px 10px}main{padding:16px}#fields{grid-template-columns:1fr}.cards{grid-template-columns:1fr 1fr}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

.topic-status-tabs{display:flex;gap:8px;width:100%;margin-bottom:8px}.topic-cover-previews{display:grid;grid-template-columns:1fr 2fr;gap:20px;align-items:start}.topic-cover-previews img{background:#f0edf4;border-radius:12px}

.rich-editor{border:1px solid #dce0e9;border-radius:12px;overflow:hidden}.rich-toolbar{display:flex;flex-wrap:wrap;gap:5px;padding:8px;background:#f5f5fa}.rich-toolbar button{padding:5px 8px;font-size:12px}.rich-body{min-height:300px;padding:16px;outline:none;line-height:1.8}.rich-body img{max-width:100%;height:auto}.rich-body h2{font-size:23px}.rich-body blockquote{border-left:3px solid #7761e8;padding-left:14px}.rich-body p{margin:0 0 12px}
.rich-toolbar input[hidden]{display:none}.rich-body{font-size:16px;color:var(--text)}