:root{--sidebar-bg: #101828;--sidebar-hover: #1d2939;--sidebar-active: #1f3a5f;--accent: #2563eb;--accent-hover: #1d4ed8;--bg: #f4f6f8;--card: #ffffff;--border: #e4e7ec;--text: #1a2233;--text-2: #667085;--ok: #067647;--ok-bg: #ecfdf3;--warn: #b54708;--warn-bg: #fffaeb;--err: #b42318;--err-bg: #fef3f2;--info: #175cd3;--info-bg: #eff8ff;--radius: 10px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,Microsoft YaHei,PingFang SC,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.6}.shell{display:flex;min-height:100vh}.sidebar{width:224px;flex-shrink:0;background:var(--sidebar-bg);color:#d0d5dd;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{padding:20px 18px 14px;border-bottom:1px solid rgba(255,255,255,.08)}.brand-title{font-size:16px;font-weight:700;color:#fff;letter-spacing:.5px}.brand-sub{font-size:11px;color:#94a3b8;margin-top:2px}.nav{flex:1;padding:10px;overflow-y:auto}.nav a{display:flex;align-items:center;gap:10px;padding:9px 12px;margin:2px 0;border-radius:8px;color:#cbd5e1;text-decoration:none;font-size:13.5px;transition:background .15s}.nav a:hover{background:var(--sidebar-hover);color:#fff}.nav a.active{background:var(--sidebar-active);color:#fff;font-weight:600}.nav-icon{width:18px;text-align:center}.sidebar-footer{padding:12px 10px;border-top:1px solid rgba(255,255,255,.08)}.main{flex:1;padding:28px 32px;max-width:1200px}.page-title{font-size:20px;font-weight:700;margin:0 0 4px}.page-desc{color:var(--text-2);margin:0 0 20px;font-size:13px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px}.card-title{font-size:15px;font-weight:600;margin:0 0 14px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;margin-bottom:16px}.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px}.stat-num{font-size:26px;font-weight:700}.stat-label{color:var(--text-2);font-size:12.5px}.btn{display:inline-block;background:var(--accent);color:#fff;border:none;border-radius:8px;padding:8px 18px;font-size:13.5px;cursor:pointer;transition:background .15s}.btn:hover{background:var(--accent-hover)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-secondary{background:#fff;color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:#f2f4f7}.btn-sm{padding:5px 12px;font-size:12.5px}label.field{display:block;margin-bottom:14px}label.field>span{display:block;font-size:12.5px;font-weight:600;color:var(--text-2);margin-bottom:5px}input[type=text],input[type=password],input[type=number],select,textarea{width:100%;padding:8px 11px;border:1px solid var(--border);border-radius:8px;font-size:13.5px;font-family:inherit;background:#fff;color:var(--text)}input:focus,select:focus,textarea:focus{outline:2px solid rgba(37,99,235,.25);border-color:var(--accent)}textarea{resize:vertical;min-height:110px}.hint{font-size:12px;color:var(--text-2);margin-top:4px}.alert{border-radius:8px;padding:10px 14px;font-size:13px;margin-bottom:14px}.alert-ok{background:var(--ok-bg);color:var(--ok)}.alert-err{background:var(--err-bg);color:var(--err)}.alert-info{background:var(--info-bg);color:var(--info)}.alert-warn{background:var(--warn-bg);color:var(--warn)}.chip{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}.chip-queued{background:#f2f4f7;color:var(--text-2)}.chip-writing{background:var(--warn-bg);color:var(--warn)}.chip-running{background:var(--info-bg);color:var(--info)}.chip-succeeded{background:var(--ok-bg);color:var(--ok)}.chip-failed{background:var(--err-bg);color:var(--err)}.task-item{border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;margin-bottom:12px;background:#fff}.task-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.task-prompt{flex:1;min-width:200px;font-size:13px;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.task-meta{color:var(--text-2);font-size:12px;display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}.task-error{color:var(--err);font-size:12.5px;margin-top:6px}.task-preview{margin-top:12px;display:flex;align-items:flex-start;gap:16px;flex-wrap:wrap}.task-preview video{width:216px;border-radius:8px;background:#000}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#101828,#1f3a5f)}.login-card{width:380px;background:#fff;border-radius:14px;padding:34px 32px;box-shadow:0 20px 50px #0000004d}.login-title{font-size:19px;font-weight:700;margin:0 0 4px}.login-sub{color:var(--text-2);font-size:13px;margin:0 0 22px}.login-btn{width:100%;padding:10px;font-size:14.5px;margin-top:6px}.boot{min-height:100vh;display:flex;align-items:center;justify-content:center;color:var(--text-2)}.placeholder-card{text-align:center;padding:56px 20px}.ph-icon{font-size:40px}.ph-badge{display:inline-block;background:var(--warn-bg);color:var(--warn);font-size:12px;font-weight:600;border-radius:999px;padding:2px 12px;margin:12px 0}.placeholder-card h2{font-size:17px;margin:6px 0}.placeholder-card p{color:var(--text-2);font-size:13px;max-width:420px;margin:0 auto 16px}.placeholder-card ul{list-style:none;padding:0;color:var(--text-2);font-size:13px}.placeholder-card li{padding:3px 0}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media (max-width: 640px){.form-row{grid-template-columns:1fr}.main{padding:20px 16px}}.mode-toggle{display:flex;gap:8px;margin-bottom:14px}.mode-toggle button{flex:1;padding:8px;border:1px solid var(--border);background:#fff;border-radius:8px;cursor:pointer;font-size:13px;color:var(--text-2)}.mode-toggle button.active{border-color:var(--accent);color:var(--accent);font-weight:600;background:#eff6ff}.check-row{display:flex;gap:20px;align-items:center;margin-bottom:14px;flex-wrap:wrap}.check-row label{display:flex;align-items:center;gap:6px;font-size:13px;cursor:pointer}.img-picked{display:flex;align-items:center;gap:10px;margin-top:8px}.img-picked img{width:54px;height:54px;object-fit:cover;border-radius:6px;border:1px solid var(--border)}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#101828b8;display:flex;align-items:center;justify-content:center;padding:24px}.modal-body{background:#fff;border-radius:12px;padding:16px;max-width:min(760px,94vw);max-height:88vh;overflow:auto;display:flex;flex-direction:column;align-items:center}.modal-head{display:flex;align-items:center;width:100%;margin-bottom:12px}