:root{
  --bg:#f5f6f5; --panel:#fff; --line:#e5e8e6; --ink:#1c211e; --sub:#79837d;
  --green:#14a36b; --green-d:#0f9160; --amber:#a97612; --red:#b84a49; --radius:8px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{background:var(--bg);color:var(--ink);font-family:"Noto Sans SC",system-ui,-apple-system,sans-serif;
  -webkit-font-smoothing:antialiased;line-height:1.5;overflow-x:hidden;}
a{color:var(--green);text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px;width:100%;}

/* 顶栏 */
.topbar{background:#fbfcfb;border-bottom:1px solid #e7eae8;}
.topbar .row{display:flex;align-items:center;gap:12px;height:56px;flex-wrap:wrap;}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;}
.brand .logo{width:28px;height:28px;border-radius:8px;background:var(--green);color:#fff;display:flex;
  align-items:center;justify-content:center;font-weight:700;font-size:15px;flex-shrink:0;}
.brand small{display:block;font-size:11px;color:var(--sub);font-weight:400;}
.spacer{margin-left:auto;}
.userbox{font-size:12.5px;color:var(--sub);display:flex;align-items:center;gap:10px;}

/* 导航（可换行，手机不挤） */
.nav{display:flex;gap:6px;flex-wrap:wrap;padding:10px 0;}
.nav button{border:1px solid transparent;background:transparent;color:#5f6a64;padding:7px 13px;border-radius:7px;
  font-size:13.5px;font-weight:500;}
.nav button.active{background:rgba(20,163,107,.1);color:#0f7a51;}
.nav button:hover{background:rgba(20,35,28,.05);}

main{padding:18px 0 60px;}
.h1{font-size:18px;font-weight:700;margin:0 0 4px;}
.muted{color:var(--sub);font-size:13px;}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;
  box-shadow:0 1px 3px rgba(20,35,28,.05);}
.card + .card, .grid > .card{margin-top:0;}
.stack > * + *{margin-top:14px;}

.grid{display:grid;gap:14px;}
.grid.cols4{grid-template-columns:repeat(4,1fr);}
.grid.cols3{grid-template-columns:repeat(3,1fr);}
.grid.cols2{grid-template-columns:repeat(2,1fr);}

/* 四步流程 */
.flow{display:flex;align-items:stretch;gap:10px;flex-wrap:wrap;}
.flow .step{flex:1;min-width:150px;background:#fafbfa;border:1px solid var(--line);border-radius:7px;padding:14px;}
.flow .step.active{border-top:2px solid var(--green);}
.flow .step.future{opacity:.65;}
.flow .step .n{font-size:11px;color:var(--sub);font-family:"IBM Plex Mono",monospace;}
.flow .step .t{font-size:15px;font-weight:600;margin-top:4px;}
.flow .step .d{font-size:12px;color:var(--sub);margin-top:6px;line-height:1.5;}
.flow .arrow{align-self:center;color:#c3cac5;font-size:18px;}

.stat{background:#fafbfa;border:1px solid var(--line);border-radius:7px;padding:14px;}
.stat .k{font-size:12px;color:var(--sub);}
.stat .v{font-size:24px;font-weight:700;margin-top:4px;}

.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--green);color:#fff;border:none;padding:10px 16px;border-radius:7px;font-size:14px;font-weight:600;line-height:1.2;}
.btn:hover{background:var(--green-d);}
.btn.ghost{background:#fff;color:#2a332e;border:1px solid #d8ded9;font-weight:500;}
.btn.ghost:hover{border-color:rgba(20,163,107,.55);}
.btn.link{background:transparent;color:#667069;padding-left:8px;padding-right:8px;font-weight:500;}
.btn.danger{color:var(--red);}
.btn.compact{padding:7px 11px;font-size:12.5px;}
.btn:disabled{opacity:.6;cursor:default;}

.dot{display:inline-block;width:8px;height:8px;border-radius:50%;vertical-align:middle;margin-right:6px;}
.dot.ok{background:var(--green);} .dot.warn{background:var(--amber);} .dot.bad{background:var(--red);}
.rowline{display:flex;align-items:center;gap:8px;font-size:13px;padding:8px 0;border-bottom:1px solid #eff1f0;flex-wrap:wrap;}
.rowline:last-child{border-bottom:none;}
.rowline .r{margin-left:auto;color:var(--sub);font-size:12.5px;word-break:break-all;text-align:right;}
.mono{font-family:"IBM Plex Mono",monospace;font-size:12px;}
.badge{font-size:11px;padding:2px 8px;border-radius:6px;background:#f0f2f1;color:var(--sub);}
.badge.on{background:rgba(20,163,107,.1);color:#0f8a5c;}
.badge.off{background:rgba(192,80,79,.1);color:var(--red);}
.badge.warn{background:rgba(169,118,18,.11);color:var(--amber);}
.notice{background:#f0f2f1;border:1px solid var(--line);border-radius:11px;padding:16px;color:#5b655f;font-size:13px;line-height:1.7;}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:#1c211e;color:#fff;
  padding:11px 18px;border-radius:11px;font-size:13.5px;z-index:60;box-shadow:0 8px 30px rgba(20,35,28,.3);max-width:90vw;}

/* 第二阶段工作区 */
.page-head,.section-head,.toolbar,.pair-head,.dialog-head,.dialog-actions,.actions,.snapshot-row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
.actions{justify-content:flex-start;}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:0 1px 3px rgba(20,35,28,.04);}
.section-head{padding-bottom:12px;border-bottom:1px solid var(--line);}
.loading{padding:30px 0;}
.toolbar{min-height:40px;}
.segmented{display:inline-flex;border:1px solid #dce1de;border-radius:7px;padding:2px;background:#fff;}
.segmented button{border:0;background:transparent;color:#69736d;padding:6px 12px;border-radius:5px;font-size:12.5px;}
.segmented button.active{background:#e7f5ef;color:#0f7a51;font-weight:600;}
.pair-list,.review-list,.snapshot-list{display:grid;gap:10px;}
.pair{padding:14px;}
.pair-head{padding-bottom:10px;border-bottom:1px solid var(--line);}
.prompt-block{padding:12px 0;}
.field-label{font-size:11px;color:var(--sub);margin-bottom:4px;}
.content{font-size:13.5px;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.65;}
.compact-content{max-height:8.4em;overflow:auto;}
.candidate-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px;}
.candidate{display:flex;flex-direction:column;align-items:flex-start;gap:10px;min-width:0;background:#fafbfa;border:1px solid var(--line);border-radius:7px;padding:12px;}
.candidate.selected{border-color:rgba(20,163,107,.55);background:#f4fbf8;}
.candidate .content{flex:1;width:100%;}
.candidate-title{font-size:12px;font-weight:700;}
.empty{padding:28px 14px;text-align:center;color:var(--sub);font-size:13px;border:1px dashed #d8ded9;border-radius:7px;}
.empty.small{padding:16px;margin-top:12px;}
.review-row{display:grid;grid-template-columns:minmax(0,1fr) 150px;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);}
.review-row:last-child{border-bottom:0;}
.review-actions{display:flex;flex-direction:column;align-items:stretch;gap:8px;}
.chosen-text{border-left:3px solid var(--green);padding-left:10px;}
.issue-list{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px;}
.issue{font-size:11px;color:var(--red);background:rgba(184,74,73,.08);padding:3px 7px;border-radius:5px;}
.coverage-list{display:grid;gap:11px;margin-top:12px;}
.coverage-row>div:first-child{display:flex;justify-content:space-between;gap:10px;font-size:12px;}
.progress{height:6px;background:#edf0ee;border-radius:3px;overflow:hidden;margin-top:5px;}
.progress span{display:block;height:100%;background:var(--green);}
.snapshot-row{padding:10px 0;border-top:1px solid var(--line);}
.compact-form{display:grid;gap:10px;margin-top:12px;}
.model-lines{margin-top:10px;}

label{display:grid;gap:5px;color:#4f5953;font-size:12px;}
input,textarea,select{width:100%;border:1px solid #d8ded9;border-radius:7px;background:#fff;color:var(--ink);padding:9px 10px;font:inherit;font-size:13px;}
textarea{resize:vertical;line-height:1.55;}
input:focus,textarea:focus,select:focus{outline:none;border-color:rgba(20,163,107,.65);box-shadow:0 0 0 2px rgba(20,163,107,.08);}
.check{display:flex;align-items:flex-start;grid-template-columns:auto 1fr;gap:8px;}
.check input{width:auto;margin-top:2px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
details{border-top:1px solid var(--line);padding-top:10px;}
summary{cursor:pointer;color:var(--sub);font-size:12px;margin-bottom:10px;}
dialog{width:min(760px,calc(100vw - 28px));max-height:calc(100vh - 40px);border:1px solid var(--line);border-radius:8px;padding:0;background:#fff;color:var(--ink);box-shadow:0 18px 60px rgba(20,35,28,.22);}
dialog::backdrop{background:rgba(17,24,20,.38);}
.dialog-form{display:grid;gap:13px;padding:18px;overflow:auto;max-height:calc(100vh - 42px);}
.dialog-head{font-size:15px;padding-bottom:10px;border-bottom:1px solid var(--line);}
.dialog-actions{justify-content:flex-end;padding-top:8px;border-top:1px solid var(--line);}
.icon-btn{width:32px;height:32px;border:0;background:transparent;border-radius:6px;font-size:22px;line-height:1;color:#68716c;}
.icon-btn:hover{background:#f0f2f1;}
.compact-note{padding:10px;border-radius:7px;}

/* 手机适配：390px 不横向溢出、不挤压 */
@media (max-width:820px){
  .grid.cols4,.grid.cols3,.grid.cols2{grid-template-columns:1fr 1fr;}
  .flow .arrow{display:none;}
}
@media (max-width:480px){
  .wrap{padding:0 14px;}
  .grid.cols4,.grid.cols3,.grid.cols2{grid-template-columns:1fr;}
  .topbar .row{height:auto;padding:10px 0;}
  .h1{font-size:16px;}
  .candidate-grid,.form-grid{grid-template-columns:1fr;}
  .review-row{grid-template-columns:1fr;}
  .review-actions{flex-direction:row;flex-wrap:wrap;align-items:center;}
  .page-head .actions{width:100%;}
  .page-head .actions .btn{flex:1;}
  dialog{width:calc(100vw - 20px);}
}