:root{--bg:#f7f7f5;--panel:#fff;--text:#20211f;--muted:#777a74;--line:#e8e7e2;--accent:#2563eb;--dark:#171817}*{box-sizing:border-box}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text)}button,input,select,textarea{font:inherit}.hidden{display:none!important}.login{min-height:100vh;display:grid;place-items:center;background:#f0f1ef}.login-card{width:380px;background:white;padding:38px;border:1px solid var(--line);border-radius:18px;box-shadow:0 20px 60px #1111}.brand-mark,.brand span{display:grid;place-items:center;background:var(--dark);color:#fff;border-radius:10px}.brand-mark{width:48px;height:48px}.login h1{font-size:22px;margin:18px 0 6px}.login p{color:var(--muted);margin:0 0 24px}.login label{display:block;font-size:13px;margin:14px 0}.login input{display:block;width:100%;margin-top:7px;padding:11px;border:1px solid var(--line);border-radius:9px}.login button,.primary{width:100%;padding:11px;border:0;border-radius:9px;background:var(--dark);color:white;cursor:pointer}.error{color:#c33;font-size:13px;margin-top:12px}.shell{display:grid;grid-template-columns:238px 1fr;min-height:100vh}aside{background:#f1f1ee;border-right:1px solid var(--line);padding:18px 12px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:10px;padding:4px 8px 22px}.brand span{width:32px;height:32px}nav{display:grid;gap:4px}nav button{border:0;background:transparent;text-align:left;padding:10px 12px;border-radius:8px;color:#555;cursor:pointer}nav button:hover,nav button.active{background:#fff;color:#111;box-shadow:0 1px 3px #1111}.user{margin-top:auto;padding:12px 8px;border-top:1px solid var(--line);display:flex;justify-content:space-between}.user button{border:0;background:none;color:var(--muted)}main{min-width:0}header{height:92px;padding:20px 30px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;background:#fafaf8}header small{color:var(--muted)}header h2{margin:4px 0 0;font-size:22px}.period input,input,select,textarea{border:1px solid var(--line);border-radius:8px;background:#fff;padding:9px 10px}#content{padding:26px 30px}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px}.metric b{display:block;font-size:26px;margin-top:10px}.muted{color:var(--muted)}.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.toolbar button,.btn{border:1px solid var(--line);background:#fff;padding:9px 13px;border-radius:8px;cursor:pointer}.toolbar .primary,.btn.primary{width:auto;border-color:var(--dark);background:var(--dark)}table{width:100%;border-collapse:collapse;background:white;border:1px solid var(--line);border-radius:10px;overflow:hidden}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--line);font-size:14px}th{color:var(--muted);font-weight:500;background:#fafaf8}.status{padding:4px 8px;border-radius:99px;background:#edf7ef;color:#28763a;font-size:12px}.form{display:grid;gap:12px}.form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.form textarea{min-height:100px}.modal{position:fixed;inset:0;background:#0005;display:grid;place-items:center;z-index:5}.modal-box{background:white;width:min(620px,92vw);max-height:88vh;overflow:auto;padding:24px;border-radius:14px}.modal-head{display:flex;justify-content:space-between}.modal-head button{border:0;background:none;font-size:22px}.agent-layout{display:grid;grid-template-columns:1fr 330px;gap:16px}.answer{white-space:pre-wrap;line-height:1.7;min-height:280px}.quick button{display:block;width:100%;text-align:left;margin:8px 0}.line{display:grid;grid-template-columns:110px 1fr 100px 100px;gap:8px;margin-bottom:8px}#toast{position:fixed;right:24px;bottom:24px;background:#222;color:white;padding:12px 16px;border-radius:8px;display:none}@media(max-width:900px){.shell{grid-template-columns:78px 1fr}.brand b,nav button{font-size:0}.brand span{margin:auto}nav button:before{font-size:18px;content:'•'}.user{display:none}.grid{grid-template-columns:repeat(2,1fr)}.agent-layout{grid-template-columns:1fr}}@media(max-width:620px){.shell{display:block}aside{position:static}.brand,nav{display:none}.grid,.form-row{grid-template-columns:1fr}#content{padding:18px}.line{grid-template-columns:1fr 1fr}}