:root{--ink:#172643;--muted:#62718a;--blue:#244ad6;--pale:#edf2ff;--line:#dfe6f1;--green:#087c68;--red:#b33c48;--bg:#f5f7fc;--white:#fff;font-family:'Segoe UI','Microsoft YaHei',sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer;border:1px solid var(--line);border-radius:9px;padding:10px 16px;background:white;color:var(--ink);font-size:13px;font-weight:600;min-height:40px}button:hover{background:var(--pale);border-color:#b5c4ed}button.primary{background:var(--blue);border-color:var(--blue);color:white}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #e7ac28;outline-offset:3px}a{color:var(--blue)}header{height:76px;border-bottom:1px solid var(--line);background:white;display:flex;align-items:center;justify-content:space-between;padding:0 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#d1dcfa;border-radius:5px;background:var(--pale);color:var(--blue);padding:4px 7px;white-space:nowrap}.notice{border:1px solid #e2d4af;background:#fffaf0;color:#826523;padding:12px 16px;border-radius:9px;font-size:12px;line-height:1.7;margin-bottom:18px}.notice.good{border-color:#bfdfd7;background:#eff9f5;color:var(--green)}.errors{background:#fff4f4;color:var(--red);border:1px solid #efc9cc;border-radius:12px;padding:22px;font-size:13px;line-height:1.9}.errors h2{font-size:18px;margin-top:0}.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;margin-bottom:20px}.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:19px 20px;min-height:125px}.stat.feature{background:var(--blue);border-color:var(--blue);color:white}.stat .label{font-size:11px;color:var(--muted)}.stat.feature .label,.stat.feature .sub{color:#d8e2ff}.stat .value{font:600 clamp(22px,2.3vw,32px) 'Segoe UI',sans-serif;letter-spacing:-1px;margin:12px 0 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tr:hover{background:#f7f9ff}.negative{color:var(--red)}.positive{color:var(--green)}.muted{color:var(--muted)}.small{font-size:11px}.item{padding:14px;border:1px solid var(--line);border-radius:10px;margin:14px 0;background:#fafbfe}.item .field{margin-bottom:10px}.item button{font-size:11px;padding:7px 10px}.section-title{font-size:13px;margin:20px 0 12px}.methods{max-width:980px;margin:auto}.methods h2{font-size:21px;margin-top:24px}.methods h3{font-size:15px}.methods p,.methods li{font-size:13px;line-height:1.9;color:var(--muted)}.formula{background:var(--pale);border-radius:8px;padding:13px 16px;font-size:13px;line-height:1.7;color:var(--blue);overflow-wrap:anywhere}.methods ul{padding-left:20px}.scenario{display:flex;background:#edf1f8;border:1px solid var(--line);border-radius:9px;padding:3px;gap:3px}.scenario button{border:0;background:none;font-size:11px;padding:7px 11px;min-height:32px}.scenario button.active{background:white;box-shadow:0 1px 4px #18294914;color:var(--blue)}.screen-title{display:flex;justify-content:space-between;gap:15px;align-items:center;margin:0 0 17px}.screen-title h2{font-size:15px;margin:0}.empty{padding:50px 25px;text-align:center}.empty h2{font-size:22px}.actions{display:flex;gap:8px;flex-wrap:wrap}.footer{max-width:1560px;margin:auto;border-top:1px solid var(--line);padding:24px 4vw;display:flex;justify-content:space-between;gap:15px;font-size:11px;color:var(--muted)}.footer button{padding:0;border:0;background:none;color:var(--muted);font-size:11px;min-height:auto}.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}.checkline{display:flex;align-items:center;gap:8px;font-size:12px}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:12px 20px;border-radius:10px;z-index:4;max-width:90vw;font-size:13px}.tip{font-size:11px;color:var(--muted);line-height:1.8}.bar-track{height:7px;border-radius:5px;background:var(--pale);margin-top:7px;overflow:hidden}.bar-fill{height:100%;background:var(--blue);border-radius:5px}button.danger{color:var(--red)}@media(min-width:1450px){.workspace{grid-template-columns:365px minmax(0,1fr)}}@media(max-width:1050px){.workspace{grid-template-columns:290px minmax(0,1fr)}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.mini-grid{grid-template-columns:1fr}.hero-mark{display:none}.stat{padding:16px}.panel-body{padding:16px}}@media(max-width:720px){header{height:68px;padding:0 18px}.brand{font-size:14px}.local{font-size:10px}.local .hide-mobile{display:none}main{padding:25px 16px 40px}.hero{margin-bottom:22px}h1{font-size:29px}.hero p{font-size:12px}.toolbar{align-items:stretch}.toolbar-group{width:100%}.toolbar select{flex:1;width:160px;min-width:0}.toolbar button{padding:8px 10px;font-size:11px}.workspace{display:flex;flex-direction:column}.parameters{width:100%;max-height:none}.results{width:100%;order:-1}.stats{gap:10px}.stat .value{font-size:24px}.stat{min-height:116px;padding:15px}.panel-head{padding:16px}.panel-head h2{font-size:13px}.split{grid-template-columns:1fr}.screen-title{flex-wrap:wrap}.tabs{gap:20px;margin-bottom:18px}.tabs button{font-size:12px}.footer{flex-wrap:wrap;padding:20px 16px}.chart text{font-size:13px}.results .notice{font-size:11px}.parameters .panel-head{background:var(--pale)}.badge{white-space:normal}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

.investment-layout{display:grid;grid-template-columns:380px minmax(0,1fr);gap:22px;align-items:start}.investment-presets{margin-bottom:18px}.investment-equation{display:flex;justify-content:space-between;gap:15px;align-items:center;background:var(--pale);padding:22px;border-radius:10px;color:var(--blue);font-size:12px;line-height:1.9}.investment-equation strong{font-size:18px}.cost-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 18px}.cost-hires{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;align-items:start}.cost-hires>button{margin-top:15px}.cost-editor{padding:18px 0}.cost-editor summary .badge{margin-left:8px}.cost-editor:last-child{border-bottom:0}input:disabled{background:#eef1f6;color:#8792a4}@media(max-width:1100px){.investment-layout{grid-template-columns:330px minmax(0,1fr)}.cost-grid,.cost-hires{grid-template-columns:repeat(2,minmax(0,1fr))}.investment-equation{flex-wrap:wrap}}@media(max-width:720px){.investment-layout{display:flex;flex-direction:column}.investment-layout>section,.investment-layout>div{width:100%}.cost-grid,.cost-hires{grid-template-columns:1fr 1fr}.investment-layout .stats{grid-template-columns:1fr 1fr}.investment-equation{flex-direction:column;align-items:flex-start}.investment-equation>b{transform:rotate(90deg)}.cost-hires{grid-template-columns:1fr}}
/* Single-page simulator */
.sim-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:24px}.sim-heading h1{font-size:30px;margin-bottom:6px}.sim-heading .toolbar-group{justify-content:flex-end}.sim-control{display:flex;align-items:flex-start;gap:24px;padding:18px 0 24px}.sim-control .field{width:150px;margin:0}.control-label{display:block;font-size:12px;color:var(--muted);margin-bottom:7px}.sim-layout{display:grid;grid-template-columns:minmax(340px,0.95fr) minmax(0,1.05fr);gap:24px;align-items:start}#liveResults{position:sticky;top:20px;min-width:0}#parameters{min-width:0}.input-section{padding:22px;margin-bottom:18px}.input-section h2,.chart-panel h2,.panel-body h2{font-size:16px;margin:0 0 20px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 16px}.compact-field .field{margin:0}.compact-field small{display:block;font-size:10px;color:var(--muted);margin-top:6px;line-height:1.5}.compact-field input[type=range]{display:none}.input-section details{margin-top:18px;padding-bottom:0}.input-section summary{padding:6px 0}.input-section input{font-size:15px;min-height:44px}.entry-head{display:flex;align-items:center;gap:12px}.entry-head .field{flex:1}.entry-head button{margin-bottom:10px;flex-shrink:0}.summary-row{display:flex;justify-content:space-between;gap:12px;font-size:13px;padding:13px 0;border-bottom:1px solid var(--line)}.summary-row strong{text-align:right}.sim-layout .stats{grid-template-columns:1fr 1fr}.sim-layout .stat .value{font-size:25px}.sim-layout .stat{min-height:120px}.chart-panel{padding:24px;margin:20px 0}.chart-panel .legend{padding:0 0 16px}.methodology{margin-top:22px}.methodology p{max-width:1100px}.sim-heading .toolbar-group select{max-width:220px}.sim-heading button{padding:9px 12px}.sim-control .scenario button{min-height:44px;font-size:13px}#saveStatus{align-self:center;color:var(--muted);font-size:11px}header .actions{align-items:center}.input-section .item{background:#f8faff}.input-section .field>span{font-size:12px}.input-section input:focus{border-color:var(--blue)}
@media(min-width:1400px){main{max-width:1400px}}@media(max-width:900px){.sim-heading{display:block}.sim-heading .toolbar-group{justify-content:flex-start;margin-top:18px}.sim-layout{grid-template-columns:minmax(300px,1fr) minmax(0,1fr)}.input-section{padding:17px}.sim-layout .stat{padding:14px}.sim-layout .stat .value{font-size:21px}}
@media(max-width:720px){.sim-layout{display:flex;flex-direction:column}.sim-layout>#parameters,.sim-layout>#liveResults{width:100%}#liveResults{position:static}.sim-heading h1{font-size:25px}.sim-heading .toolbar-group{width:100%;gap:6px}.sim-heading .toolbar-group select{flex-basis:100%;max-width:none}.form-grid{gap:15px 12px}.sim-control{gap:12px;flex-wrap:wrap}.sim-control .field{width:125px}.sim-control .scenario button{padding:7px 10px}.chart-panel{padding:16px}.chart-panel .chart{min-height:180px}.chart-panel .chart text{font-size:12px}header{height:auto;min-height:72px;gap:12px;flex-wrap:wrap;padding:14px 16px}header .actions{margin-left:auto}header button{min-height:40px;padding:8px 11px}.input-section{padding:18px}.summary-row{font-size:12px}.sim-layout .stat .value{font-size:22px}#saveStatus{font-size:10px}.entry-head .field{min-width:0}.sim-heading .toolbar-group button{min-height:44px}.scroll-table{max-width:100%}}
/* Investment Studio: two workspaces, one shared engine */
.side-switch{display:flex;background:#edf1f8;border:1px solid var(--line);border-radius:10px;padding:3px;gap:3px}.side-switch button{border:0;background:transparent;padding:9px 25px;min-height:40px}.side-switch button.active{background:var(--blue);color:#fff;box-shadow:0 2px 5px #244ad622}.project-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;padding:12px 0 50px}.project-card{text-align:left;background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;min-width:0;transition:border-color .15s,box-shadow .15s}.project-card:hover{background:#fff;border-color:#a7b9ec;box-shadow:0 8px 28px #1726430b}.project-card:focus-visible{outline:3px solid #244ad6}.card-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.project-icon{display:grid;place-items:center;background:#edf2ff;color:var(--blue);border-radius:12px;width:44px;height:44px;font-size:21px}.project-card h2{font-size:19px;margin:0 0 6px;overflow-wrap:anywhere}.project-card p{font-size:12px;font-weight:400;min-height:22px}.card-metric{padding:24px 0;display:flex;flex-direction:column;gap:10px}.card-metric span{font-size:12px;font-weight:400;color:var(--muted)}.card-metric strong{font-size:27px;letter-spacing:-.5px;overflow-wrap:anywhere}.card-footer{display:flex;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:17px;font-size:11px;color:var(--muted);font-weight:400}.card-footer span:last-child{color:var(--blue);white-space:nowrap}.back-button{background:transparent;border:0;padding:0 0 16px;font-size:13px;color:var(--muted)}.scenario-bar{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:16px;align-items:center;margin:20px 0 0}.scenario-bar .field{margin:0}.scenario-bar button{align-self:end;min-height:44px}.history{margin-top:20px}.history .item{max-width:700px}.side-switch{flex-shrink:0}.sim-heading h1{overflow-wrap:anywhere}.panel-body>.summary-row strong{overflow-wrap:anywhere}.input-section .form-grid{min-width:0}.input-section select{min-height:44px}
@media(max-width:1150px){.project-grid{grid-template-columns:repeat(2,minmax(0,1fr))}header{padding:16px 3vw;height:auto;flex-wrap:wrap}.scenario-bar{grid-template-columns:1fr 1fr}.side-switch button{padding:9px 18px}}
@media(max-width:720px){.project-grid{grid-template-columns:1fr;gap:15px}.project-card{padding:22px}.card-metric{padding:18px 0}.project-grid{padding-bottom:20px}.side-switch{order:3;width:100%;justify-content:center}.side-switch button{flex:1}.scenario-bar{gap:12px}.scenario-bar button{width:100%}.sim-heading .primary{margin-top:16px;width:100%}.card-footer{font-size:11px}.back-button{min-height:44px}header .actions{gap:6px}header .brand{font-size:13px}.sim-layout .stats{grid-template-columns:1fr 1fr}.sim-layout .stat .value{overflow-wrap:anywhere;font-size:21px}.summary-row{align-items:start}.history .form-grid{grid-template-columns:1fr 1fr}.project-card h2{font-size:19px}}