:root{font-family:Inter,PingFang SC,Microsoft YaHei,sans-serif;color:#1d3047;background:#f4f7fb;font-size:14px}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{cursor:pointer;border:1px solid #d8e2ef;border-radius:8px;padding:10px 15px;color:inherit;background:white}button:disabled{opacity:.5;cursor:default}button:hover:not(:disabled){background:#edf4ff;border-color:#80a7eb}button.primary{background:#2468dc;border-color:#2468dc;color:white}input,select{padding:11px;border:1px solid #d8e2ef;border-radius:8px;background:white;color:inherit;max-width:100%}label{display:block;font-size:13px;color:#556b85}label input,label select{display:block;width:100%;margin-top:8px;margin-bottom:18px}h1{font-size:28px;margin:10px 0 22px}h2{font-size:17px;margin:8px 0 18px}p{line-height:1.8}.muted{color:#73859a}.small,small{font-size:12px}.eyebrow{font-size:11px;letter-spacing:2px;color:#6c85a4}.shell{display:grid;grid-template-columns:220px minmax(0,1fr);min-height:100vh}.shell aside{background:#112841;color:#aac0d9;padding:30px 16px;height:100vh;position:-webkit-sticky;position:sticky;top:0}.brand{color:white;font-size:23px;font-weight:750;letter-spacing:2px;padding:0 12px}.brand small{display:block;margin-top:10px;color:#90aac7}.brand small,.nav-title{font-size:10px;letter-spacing:2px}.nav-title{margin:45px 14px 15px}nav button{display:block;width:100%;text-align:left;border:0;background:transparent;color:#aec1d8;margin:7px 0;padding:15px}nav button.active{background:#254666;color:white}nav button:hover:not(:disabled){background:#284767;color:white}.aside-note{position:absolute;bottom:30px;left:30px;font-size:11px;line-height:2;color:#8ba4bf}header{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:17px 30px;background:white;border-bottom:1px solid #e3eaf3}header button{margin-left:14px}main{padding:28px 32px;max-width:1600px;margin:auto}.banner{padding:14px 18px;border:1px solid #d2e0f6;background:#eaf2ff;border-radius:9px;color:#557397;font-size:12px;line-height:1.8;margin-bottom:22px}.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:18px}.toolbar input{flex:1 1;min-width:180px}.mail-grid{display:grid;grid-template-columns:340px minmax(0,1fr);grid-gap:20px;gap:20px}.panel{border:1px solid #e2e9f2;background:white;padding:23px;border-radius:12px;margin-bottom:20px;min-width:0}.mail-list{padding:20px 12px;align-self:start}.mail-list h2{padding:0 10px}.mail-item{display:block;text-align:left;width:100%;border:0;border-radius:8px;padding:16px 12px;border-bottom:1px solid #eaf0f6}.mail-item strong{display:block;line-height:1.6;margin:12px 0}.mail-item p{margin:5px 0;font-size:12px;color:#70839a}.mail-item small{color:#73859a}.mail-item.chosen{background:#edf4ff}.row{display:flex;align-items:center;justify-content:space-between;gap:8px}.tag{background:#eaf1ff;color:#3266b0;padding:5px 8px;border-radius:5px;font-size:11px}.demo{font-size:10px;color:#a66c20}.tag.neutral{background:#f0f3f7;color:#62758d}.subject{font-size:20px;line-height:1.6;margin-top:20px}.mail-body{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;line-height:1.9;padding:20px 0;border-top:1px solid #edf1f6}.fields{display:grid;grid-template-columns:1fr 1fr;grid-gap:0 20px;gap:0 20px}.checklist{background:#f6f8fc;border-left:3px solid #93b4e6;padding:15px}.audit{padding:15px 0;border-bottom:1px solid #edf1f6}.audit small{color:#788ba3}.audit p{margin:5px 0;font-size:13px}.cards{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:16px;gap:16px}.number{display:block;font-size:32px;margin-top:15px}.distribution{display:flex;justify-content:space-between;padding:13px 0;border-bottom:1px solid #edf1f6}.date-label{max-width:230px}.empty{text-align:center;color:#7a8da4;padding:60px 22px}.empty-icon{font-size:42px;color:#b0c5df;margin:25px}.pagination{margin-top:20px}.error,.success{padding:13px 16px;border-radius:8px;margin:14px 0;line-height:1.7}.error{background:#fff0ef;color:#a23936}.success{background:#e9f7ef;color:#2b7750}.login{max-width:440px;background:white;border:1px solid #e2e9f2;border-radius:14px;padding:38px;margin:12vh auto}.login form{margin-top:28px}.login button{width:100%}.fields>*,.workspace{min-width:0}h2,p,strong{overflow-wrap:anywhere}@media (max-width:1100px){.mail-grid{grid-template-columns:280px minmax(0,1fr)}main{padding:24px 20px}.shell{grid-template-columns:185px minmax(0,1fr)}}@media (max-width:800px){.mail-grid{grid-template-columns:1fr}.cards{grid-template-columns:repeat(2,1fr)}.shell{display:block}.shell aside{position:static;height:auto;padding:18px}.aside-note,.brand small,.nav-title{display:none}nav{display:flex;margin-top:12px}nav button{width:auto;margin:0}.fields{grid-template-columns:1fr}.mail-list{max-height:500px;overflow:auto}header{padding:14px;flex-wrap:wrap}.login{margin:7vh 16px}.toolbar input{width:100%}main{padding:20px 14px}}.folder-nav{margin-top:18px;border-top:1px solid #34506c;padding-top:12px}.folder-nav button{padding:10px 15px;margin:3px 0}.folder-nav small{float:right;font-size:10px;opacity:.7}.shell aside{overflow-y:auto}.aside-note{position:static;margin:30px 14px 0}main{max-width:2000px}.mail-grid{grid-template-columns:260px minmax(0,1fr);gap:16px}.reading-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;grid-gap:16px;gap:16px;align-items:start;min-width:0}.reading-layout>.empty{grid-column:1/-1}.reader{min-height:460px}.analysis-column{min-width:0}.analysis-column .fields{grid-template-columns:1fr}.analysis-column .panel{padding:18px}.mail-list{max-height:75vh;overflow-y:auto}@media (max-width:1350px){.reading-layout{grid-template-columns:minmax(0,1fr)}}@media (max-width:800px){.mail-grid{grid-template-columns:minmax(0,1fr)}.folder-nav{flex-wrap:wrap;gap:4px}.folder-nav button{width:auto}.folder-nav small{margin-left:8px}.reader{min-height:0}}