:root{
  --bg:#f3f6fb; --card:#fff; --line:#e6eaf2; --text:#0f172a; --muted:#64748b;
  --brand:#2563eb; --brand2:#1d4ed8; --ok:#16a34a; --warn:#d97706; --bad:#dc2626;
  --radius:14px; --shadow:0 1px 3px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.05);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Segoe UI,Roboto,sans-serif;
  font-size:14px; line-height:1.6;
}
a{color:var(--brand);text-decoration:none}
.hidden{display:none!important}
.muted{color:var(--muted)}
.small{font-size:12px}
.mt8{margin-top:8px}.mt16{margin-top:16px}.mb8{margin-bottom:8px}.mb16{margin-bottom:16px}

/* ---------- 顶栏 ---------- */
header.topbar{
  background:#fff; border-bottom:1px solid var(--line); position:sticky; top:0; z-index:20;
}
.topbar-inner{max-width:1120px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px}
.brand .logo{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,#2563eb,#7c3aed);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px}
.topbar .spacer{flex:1}
.userchip{display:flex;align-items:center;gap:8px;color:var(--muted)}
.userchip b{color:var(--text)}

/* ---------- 布局 ---------- */
.wrap{max-width:1120px;margin:0 auto;padding:20px}
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:18px;overflow-x:auto}
.tab{padding:9px 16px;border-radius:10px 10px 0 0;cursor:pointer;color:var(--muted);font-weight:500;white-space:nowrap;border-bottom:2px solid transparent}
.tab.active{color:var(--brand);border-bottom-color:var(--brand);background:rgba(37,99,235,.05)}
.tab:hover{color:var(--brand)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}
.card h3{margin:0 0 4px;font-size:16px}
.card h4{margin:0 0 10px;font-size:14px;color:var(--muted);font-weight:600}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:860px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

/* ---------- 统计卡 ---------- */
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}
.stat .label{color:var(--muted);font-size:12px}
.stat .num{font-size:26px;font-weight:800;margin-top:2px}
.stat.ok .num{color:var(--ok)} .stat.bad .num{color:var(--bad)} .stat.warn .num{color:var(--warn)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid transparent;border-radius:10px;padding:8px 14px;font-size:14px;cursor:pointer;background:#eef2f8;color:var(--text);font-weight:500;transition:.15s}
.btn:hover{filter:brightness(.97)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.primary{background:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand2)}
.btn.ok{background:var(--ok);color:#fff}
.btn.bad{background:var(--bad);color:#fff}
.btn.ghost{background:#fff;border-color:var(--line)}
.btn.small{padding:4px 10px;font-size:12px;border-radius:8px}
.btn.danger{background:#fff;border-color:#fecaca;color:var(--bad)}
.btn.danger:hover{background:#fef2f2}

/* ---------- 表单 ---------- */
label{display:block;font-size:12px;color:var(--muted);margin:12px 0 4px;font-weight:600}
input,select,textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;padding:9px 12px;font-size:14px;
  background:#fff;color:var(--text);font-family:inherit;outline:none;
}
input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
textarea{resize:vertical;min-height:70px}
.inline-form{display:flex;gap:8px;align-items:end;flex-wrap:wrap}
.inline-form .field{flex:1;min-width:150px}

/* ---------- 徽标 ---------- */
.badge{display:inline-flex;align-items:center;gap:5px;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}
.badge.pending{background:#eef2ff;color:#4338ca}
.badge.analyzing{background:#fff7ed;color:#c2410c}
.badge.analyzed{background:#ecfeff;color:#0e7490}
.badge.approved{background:#ecfdf5;color:#047857}
.badge.rejected{background:#fef2f2;color:#b91c1c}
.badge.open{background:#ecfdf5;color:#047857}
.badge.closed{background:#f1f5f9;color:#475569}
.badge.plain{background:#f1f5f9;color:#475569}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{text-align:left;padding:10px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
th{color:var(--muted);font-weight:600;font-size:12px;background:#fafbfe;white-space:nowrap}
tr:last-child td{border-bottom:none}
tr.hover:hover td{background:#f8fafc}

/* ---------- 视频条目 ---------- */
.video-item{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:10px;background:#fff}
.video-item .head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.video-item .title{font-weight:600;flex:1;min-width:160px}
.video-item .meta{color:var(--muted);font-size:12px;margin-top:4px}
.video-item .actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px;align-items:center}
.score-pill{font-weight:800;font-size:15px}
.score-pill.high{color:var(--ok)} .score-pill.mid{color:var(--warn)} .score-pill.low{color:var(--bad)}
.progress{height:8px;border-radius:999px;background:#e8edf5;overflow:hidden;margin-top:8px}
.progress>div{height:100%;background:linear-gradient(90deg,#2563eb,#22c55e);border-radius:999px;transition:width .3s}

/* ---------- AI 报告 ---------- */
.ai-box{background:#f8fafc;border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-top:10px;font-size:13px}
.ai-box .tag{font-weight:700;margin-right:4px}
.ai-warn{background:#fffbeb;border-color:#fde68a;color:#92400e}
ul.clean{margin:6px 0;padding-left:18px}
ul.clean li{margin:2px 0}

/* ---------- 弹窗 ---------- */
.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:50;display:flex;align-items:center;justify-content:center;padding:20px}
.modal{background:#fff;border-radius:16px;max-width:920px;width:100%;max-height:92vh;overflow:auto;padding:20px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal h3{margin-top:0}
.modal video{width:100%;max-height:62vh;background:#000;border-radius:10px}
.modal-close{float:right;background:none;border:none;font-size:22px;cursor:pointer;color:var(--muted);line-height:1}
.toast{position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:99;background:#0f172a;color:#fff;padding:10px 18px;border-radius:10px;font-size:14px;box-shadow:0 8px 24px rgba(0,0,0,.25);max-width:80vw;text-align:center}
.toast.ok{background:var(--ok)} .toast.err{background:var(--bad)}

/* ---------- 登录页 ---------- */
.login-body{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(1000px 500px at 15% -10%,rgba(37,99,235,.18),transparent),radial-gradient(800px 400px at 110% 110%,rgba(124,58,237,.16),transparent),#f3f6fb;padding:20px}
.login-card{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 20px 60px rgba(15,23,42,.10);padding:36px 34px;width:100%;max-width:390px}
.login-logo{width:52px;height:52px;border-radius:15px;background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;font-size:26px;display:flex;align-items:center;justify-content:center;margin:0 auto 14px}
.login-card h1{text-align:center;font-size:21px;margin:0 0 2px}
.login-card .sub{text-align:center;color:var(--muted);font-size:13px;margin-bottom:22px}
.errbox{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca;border-radius:10px;padding:8px 12px;font-size:13px;display:none;margin-bottom:12px}
.hint{background:#f8fafc;border:1px dashed var(--line);border-radius:10px;padding:10px 12px;font-size:12px;color:var(--muted);margin-top:18px}

/* ---------- 空状态 ---------- */
.empty{text-align:center;color:var(--muted);padding:36px 10px;font-size:13.5px}
.empty .ico{font-size:34px;margin-bottom:8px}

/* ---------- 其他 ---------- */
.divider{height:1px;background:var(--line);margin:14px 0}
.tag-ai{background:linear-gradient(135deg,#7c3aed,#2563eb);color:#fff}
progress{width:100%;height:10px;border-radius:6px}
.upload-zone{border:2px dashed #cbd5e1;border-radius:14px;padding:26px;text-align:center;cursor:pointer;background:#fafcff;transition:.15s}
.upload-zone:hover,.upload-zone.drag{border-color:var(--brand);background:#eff6ff}
.upload-zone .big{font-size:30px}
.actions-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.warn-note{background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:8px 12px;font-size:12.5px;color:#92400e;margin-top:8px}

/* ---------- 任务要求/协议/成员选择 ---------- */
.req-box{background:#eff6ff;border:1px solid #bfdbfe;border-radius:10px;padding:8px 12px;font-size:13px;color:#1e40af;margin-top:8px}
.chip{display:inline-block;background:#eef2ff;color:#3730a3;border-radius:999px;padding:2px 10px;font-size:12px;margin:2px 6px 2px 0;border:1px solid #e0e7ff}
.mchip-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:8px 12px}
.mchip{display:inline-flex;align-items:center;gap:5px;font-size:13px;cursor:pointer;background:#fff;border:1px solid var(--line);border-radius:999px;padding:3px 11px;user-select:none}
.mchip input{width:auto;margin:0}
.mchip:has(input:checked){background:var(--brand);color:#fff;border-color:var(--brand)}
.mchip:has(input:disabled){opacity:.5}

/* ---------- 三态审核（绿=通过 / 蓝=通过可改进 / 红=未通过） ---------- */
.badge.approved{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}
.badge.approved-improve{background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe}
.btn-blue{background:#2563eb;color:#fff}
.btn-blue:hover{background:#1d4ed8}
.c-green{color:#16a34a!important}
.c-blue{color:#2563eb!important}
.c-red{color:#dc2626!important}
.hint{display:inline-block;margin:0 6px;padding:1px 8px;border-radius:999px;font-size:12px;font-weight:700;background:#f1f5f9}
.hint.c-green{background:#ecfdf5}
.hint.c-blue{background:#eff6ff}
.hint.c-red{background:#fef2f2}

/* ---------- AI 谷时队列 ---------- */
.badge.queued{background:#f5f3ff;color:#6d28d9;border:1px solid #ddd6fe}