:root{--bg:#f4f7f5;--surface:#fff;--surface-2:#f8faf9;--ink:#18231e;--muted:#718079;--line:#dfe7e2;--green:#18875a;--green-dark:#116c47;--lime:#e6f3c6;--red:#d45b52;--amber:#f0b84b;--shadow:0 14px 40px rgba(29,61,45,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans SC",system-ui,sans-serif;letter-spacing:0}.topbar{height:72px;background:rgba(255,255,255,.9);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1240px)/2));position:sticky;top:0;z-index:20;backdrop-filter:blur(16px)}.brand{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none}.brand-mark{width:40px;height:40px;display:grid;place-items:center;background:var(--green);color:#fff;font-weight:800;border-radius:8px;box-shadow:inset 0 -4px 0 rgba(0,0,0,.12)}.brand strong,.brand small{display:block}.brand strong{font-size:17px}.brand small{font-size:11px;color:var(--muted);margin-top:1px}.top-actions{display:flex;align-items:center;gap:10px}.save-state{font-size:12px;color:var(--green);display:flex;gap:6px;align-items:center;margin-right:5px}.save-state svg{width:16px}.icon-btn,.ghost-btn,.add-btn{border:1px solid var(--line);background:var(--surface);color:var(--ink);height:36px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;gap:7px;cursor:pointer;font-weight:600}.icon-btn{width:36px}.icon-btn svg,.ghost-btn svg,.add-btn svg{width:16px}.ghost-btn,.add-btn{padding:0 13px}.app-shell{max-width:1240px;margin:auto;padding:30px 24px 70px}.intro{height:178px;background:#dcefe0;border:1px solid #c9dfce;border-radius:8px;overflow:hidden;padding:30px 36px;display:flex;align-items:center;justify-content:space-between;position:relative}.intro>div{z-index:1}.intro img{height:100%;width:52%;object-fit:cover;object-position:left center;position:absolute;right:0;bottom:0}.eyebrow{margin:0 0 8px;color:var(--green-dark);font-size:12px;font-weight:800}.intro h1{font-size:30px;margin:0 0 9px;line-height:1.25}.intro p:last-child{margin:0;color:#567065;font-size:14px}.steps{margin:18px 0;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden}.steps a{background:var(--surface);padding:14px;color:var(--muted);text-decoration:none;font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center;gap:8px}.steps span{width:22px;height:22px;border-radius:50%;background:var(--surface-2);display:grid;place-items:center;font-size:11px}.steps a:hover{color:var(--green);background:#fbfdfb}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 366px;gap:18px;align-items:start}.editor-column{display:flex;flex-direction:column;gap:16px}.panel,.summary-card,.history-panel{background:var(--surface);border:1px solid var(--line);border-radius:8px}.panel{padding:22px}.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.panel-head>div{display:flex;align-items:center;gap:10px}.panel h2{font-size:17px;margin:0}.section-index{font-size:11px;color:var(--green);font-weight:800;background:#e9f5ee;padding:4px 6px;border-radius:4px}.add-btn{height:34px;color:var(--green);font-size:12px}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:650px}th{text-align:left;color:var(--muted);font-size:11px;font-weight:600;padding:0 8px 9px}td{border-top:1px solid var(--line);padding:10px 8px}input,select{font:inherit;color:var(--ink);outline:none}td input,td select,.stack-row input,.member-row input,.title-input input{width:100%;height:38px;border:1px solid var(--line);border-radius:6px;background:var(--surface-2);padding:0 10px;font-size:13px}td input:focus,td select:focus,.stack-row input:focus,.member-row input:focus,.title-input input:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(24,135,90,.1)}td:nth-child(1){width:28%}td:nth-child(2){width:23%}td:nth-child(3){width:19%}td:nth-child(4){width:12%}.tax-cell{font-size:12px;color:var(--muted);white-space:nowrap}.remove-btn{border:0;background:transparent;color:#a2ada7;cursor:pointer;padding:6px}.remove-btn:hover{color:var(--red)}.remove-btn svg{width:16px}.coin-row{border-top:1px solid var(--line);margin-top:12px;padding-top:16px;display:flex;align-items:center;justify-content:space-between}.coin-row label{font-size:13px;font-weight:600;display:flex;align-items:center;gap:8px}.r-badge{background:#f5e7bd;color:#876315;padding:2px 6px;border-radius:4px;font-size:11px}.number-input{display:flex;align-items:center}.number-input input{height:38px;width:140px;border:1px solid var(--line);border-radius:6px 0 0 6px;padding:0 10px;background:var(--surface-2)}.number-input span{height:38px;display:grid;place-items:center;background:#f2e7c7;color:#80611a;padding:0 12px;border-radius:0 6px 6px 0;font-size:12px;font-weight:700}.stack-list,.member-list{display:flex;flex-direction:column;gap:8px}.stack-row{display:grid;grid-template-columns:1fr 180px 34px;gap:8px}.member-head,.member-row{display:grid;grid-template-columns:1.3fr 120px 150px 34px;gap:8px;align-items:center}.member-head{padding:0 3px 8px;color:var(--muted);font-size:11px}.member-row{border-top:1px solid var(--line);padding-top:9px}.hint{margin:15px 0 0;color:var(--muted);font-size:11px;display:flex;gap:6px;align-items:flex-start}.hint svg{width:14px;flex:none}.summary-column{position:sticky;top:90px;display:flex;flex-direction:column;gap:16px}.summary-card{padding:22px;box-shadow:var(--shadow)}.summary-title{display:flex;justify-content:space-between;align-items:flex-start}.summary-title p{margin:0 0 4px;color:var(--green);font-size:11px;font-weight:800}.summary-title h2{margin:0;font-size:19px}.summary-title>svg{width:25px;color:var(--green)}.title-input{display:block;margin:18px 0}.title-input span{font-size:11px;color:var(--muted);display:block;margin-bottom:6px}.metric-list{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:9px 0}.metric-list div{display:flex;justify-content:space-between;padding:6px 0;font-size:12px}.metric-list span{color:var(--muted)}.metric-list strong{font-size:12px}.negative{color:var(--red)}.hero-metric{text-align:center;padding:20px 0 17px}.hero-metric span{display:block;font-size:11px;color:var(--muted)}.hero-metric strong{font-size:36px;color:var(--green);line-height:1.25}.hero-metric small{display:block;color:var(--muted);font-size:11px}.weight-note{display:flex;justify-content:center;gap:20px;background:var(--surface-2);border-radius:6px;padding:8px;font-size:11px;color:var(--muted)}.weight-note b{color:var(--ink)}.result-list{margin:14px 0;max-height:248px;overflow:auto}.result-row{display:grid;grid-template-columns:1fr auto;gap:5px;padding:10px 2px;border-bottom:1px solid var(--line)}.result-row:last-child{border-bottom:0}.result-row span{font-size:12px;font-weight:600}.result-row strong{font-size:12px;color:var(--green)}.result-row small{grid-column:1/-1;color:var(--muted);font-size:10px}.primary-btn,.secondary-btn{width:100%;height:43px;border-radius:7px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px}.primary-btn{background:var(--green);color:#fff;border:0;box-shadow:inset 0 -3px 0 rgba(0,0,0,.14)}.primary-btn:hover{background:var(--green-dark)}.secondary-btn{background:var(--surface);color:var(--ink);border:1px solid var(--line);margin-top:8px}.primary-btn svg,.secondary-btn svg{width:17px}.history-panel{padding:16px}.history-head{display:flex;align-items:center;justify-content:space-between}.history-head h3{font-size:13px;margin:0}.history-head button{border:0;background:transparent;color:var(--muted);font-size:11px;cursor:pointer}.history-item{padding:11px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:10px}.history-item:last-child{border:0}.history-item strong,.history-item span{display:block;font-size:11px}.history-item span{color:var(--muted);margin-top:3px}.history-item>span{white-space:nowrap;color:var(--green);font-weight:700}.empty{color:var(--muted);font-size:11px;text-align:center;padding:18px}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:#1f2b25;color:#fff;padding:10px 16px;border-radius:6px;font-size:12px;opacity:0;pointer-events:none;transition:.2s;z-index:50}.toast.show{opacity:1;transform:translate(-50%,0)}
body.dark{--bg:#151b18;--surface:#202824;--surface-2:#18201c;--ink:#e8eee9;--muted:#94a198;--line:#334039;--green:#42b982;--green-dark:#2e9b6a;--shadow:0 14px 40px rgba(0,0,0,.18)}body.dark .topbar{background:rgba(32,40,36,.92)}body.dark .intro{background:#263d30;border-color:#36523f}body.dark .intro p:last-child{color:#a8bdaf}body.dark .number-input span{background:#554a29;color:#ead48e}
@media(max-width:900px){.workspace{grid-template-columns:1fr}.summary-column{position:static}.intro img{opacity:.42;width:70%}.intro>div{max-width:70%}}
@media(max-width:620px){.topbar{height:64px;padding:0 14px}.save-state,.ghost-btn{display:none}.app-shell{padding:16px 12px 50px}.intro{height:156px;padding:22px}.intro h1{font-size:24px}.intro p:last-child{font-size:12px}.intro img{width:85%;opacity:.32}.steps a{padding:11px 4px;font-size:11px}.panel{padding:16px}.member-head{display:none}.member-row{grid-template-columns:1fr 82px 34px}.member-row input:nth-child(3){grid-column:1/3}.stack-row{grid-template-columns:1fr 110px 34px}.summary-card{padding:18px}}
.intro .scene-art{height:100%;width:52%;position:absolute;right:0;bottom:0}
@media(max-width:900px){.intro .scene-art{opacity:.42;width:70%}}
@media(max-width:620px){.intro .scene-art{width:85%;opacity:.32}}