:root{--ink:#122235;--muted:#67778a;--line:#dbe3ea;--paper:#f4f7f9;--white:#fff;--navy:#0b1d30;--blue:#1c6fa8;--teal:#14837c;--amber:#b97922;--red:#a84a46;--shadow:0 14px 36px rgba(19,38,58,.08)}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px}.app-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;background:var(--navy);color:#e8f0f6;padding:28px 18px;display:flex;flex-direction:column}.brand{display:flex;gap:12px;align-items:center;padding:0 8px 28px;border-bottom:1px solid #26394c}.brand-mark{width:42px;height:42px;border:1px solid #6b91ad;display:grid;place-items:center;font-family:Georgia,serif;font-size:18px}.brand strong,.brand small{display:block}.brand small{font-size:10px;letter-spacing:.15em;color:#84a1b8;margin-top:4px}.sidebar nav{display:grid;gap:6px;margin-top:28px}.nav-item{appearance:none;border:0;background:transparent;color:#a9bbca;text-align:left;padding:13px 14px;border-radius:6px;font:inherit;cursor:pointer}.nav-item:hover,.nav-item.active{background:#163550;color:white}.nav-item.active{box-shadow:inset 3px 0 #58b9d0}.sidebar-note{margin-top:auto;border-top:1px solid #26394c;padding:20px 8px 0;display:flex;align-items:flex-start;gap:10px}.sidebar-note b,.sidebar-note small{display:block}.sidebar-note b{font-size:13px}.sidebar-note small{color:#8da4b6;margin-top:3px}.status-dot{width:8px;height:8px;background:#50b8a9;border-radius:50%;margin-top:5px;box-shadow:0 0 0 4px rgba(80,184,169,.12)}main{padding:32px 44px 60px;max-width:1540px;width:100%;margin:auto}.topbar{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:30px}.topbar h1{font-family:Georgia,"Noto Serif SC",serif;font-size:32px;margin:4px 0 0}.eyebrow{margin:0;color:var(--blue);font-size:11px;font-weight:700;letter-spacing:.18em}.asof{font-size:13px;color:var(--muted)}.view{display:none}.view.active{display:block}.formula-panel{background:linear-gradient(120deg,#102a43,#174b69);color:white;border-radius:8px;padding:34px 36px;display:grid;grid-template-columns:1fr 1.25fr;gap:40px;box-shadow:var(--shadow)}.formula-panel h2{font:30px Georgia,"Noto Serif SC",serif;margin:7px 0 10px}.formula-panel p:last-child{color:#c3d4df;line-height:1.7;margin:0;max-width:520px}.formula-panel .eyebrow{color:#76cad6}.formula{display:grid;grid-template-columns:auto auto 1fr auto 1fr;align-items:center;gap:14px;background:rgba(255,255,255,.07);padding:22px;border:1px solid rgba(255,255,255,.12);border-radius:6px}.formula span{font-weight:600;line-height:1.5}.formula b{color:#78d4dc;font-size:22px}.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);background:white;margin:22px 0 36px;border:1px solid var(--line);border-radius:8px}.metric-strip article{padding:22px 24px;border-right:1px solid var(--line)}.metric-strip article:last-child{border:0}.metric-strip small,.metric-strip span{display:block;color:var(--muted);font-size:12px}.metric-strip strong{display:block;font:30px Georgia,serif;margin:5px 0}.metric-strip .text-value{font-size:23px}.section-head{display:flex;align-items:end;justify-content:space-between;margin:0 0 15px}.section-head h2{font:25px Georgia,"Noto Serif SC",serif;margin:5px 0}.text-link{border:0;background:none;color:var(--blue);cursor:pointer;font-size:14px}.driver-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.driver-card{background:white;border:1px solid var(--line);border-top:3px solid var(--blue);padding:23px;border-radius:5px}.driver-card>span{font:14px Georgia;color:var(--blue)}.driver-card h3{font:21px Georgia,"Noto Serif SC",serif;margin:14px 0 10px}.driver-card p{color:var(--muted);font-size:13px;line-height:1.55;min-height:42px}.driver-card ul{padding:14px 0 0;margin:15px 0 0;border-top:1px solid var(--line);list-style:none}.driver-card li{font-size:13px;margin:8px 0}.cargo{border-top-color:var(--teal)}.cargo>span{color:var(--teal)}.cost{border-top-color:var(--amber)}.cost>span{color:var(--amber)}.external{border-top-color:var(--red)}.external>span{color:var(--red)}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}.panel{background:white;border:1px solid var(--line);border-radius:6px;padding:24px}.panel-title{display:flex;justify-content:space-between;align-items:center}.panel-title h3,.panel h3{margin:0 0 14px;font:20px Georgia,"Noto Serif SC",serif}.panel-title span{background:#e9f1f5;color:var(--blue);font-size:11px;padding:4px 8px;border-radius:10px}.panel p{color:var(--muted);line-height:1.7}.scope-row{display:grid;grid-template-columns:52px 1fr;gap:10px;border-top:1px solid var(--line);padding:13px 0;font-size:13px}.scope-row.muted{color:var(--muted)}.steps{list-style:none;padding:0;margin:0;counter-reset:item}.steps li{padding:10px 0 10px 36px;position:relative}.steps li:before{counter-increment:item;content:counter(item);position:absolute;left:0;width:22px;height:22px;display:grid;place-items:center;border:1px solid #9ab0bf;border-radius:50%;font-size:11px;color:var(--blue)}.steps b,.steps small{display:block}.steps small{color:var(--muted);margin-top:3px}.section-intro{border-left:3px solid var(--blue);padding:1px 0 1px 15px;margin-bottom:24px;color:var(--muted)}.logic-root{width:260px;margin:auto;background:var(--navy);color:white;text-align:center;padding:18px;border-radius:5px;font:21px Georgia,"Noto Serif SC",serif}.logic-connector{height:34px;width:1px;background:#9fb0bd;margin:auto}.logic-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;position:relative}.logic-columns:before{content:"";position:absolute;top:-1px;left:16.5%;right:16.5%;height:1px;background:#9fb0bd}.logic-columns article{background:white;border:1px solid var(--line);padding:22px;border-radius:6px}.logic-columns article>h3{text-align:center;font:20px Georgia,"Noto Serif SC",serif;margin:0 0 18px}.node{border-left:3px solid var(--blue);background:#f6f9fb;padding:15px;margin:10px 0}.node b,.node span,.node small{display:block}.node span{font-size:13px;margin:6px 0}.node small{color:var(--muted);font-size:12px}.toolbar{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:18px}.search{width:min(420px,100%);background:white;border:1px solid var(--line);display:flex;align-items:center;padding:0 13px;border-radius:5px}.search input{border:0;outline:0;padding:12px;width:100%;font:inherit;font-size:14px}.filters{display:flex;gap:6px;flex-wrap:wrap}.filters button{border:1px solid var(--line);background:white;color:var(--muted);padding:8px 13px;border-radius:4px;cursor:pointer}.filters button.active{background:var(--navy);color:white;border-color:var(--navy)}.table-wrap{background:white;border:1px solid var(--line);border-radius:6px;overflow:auto}table{width:100%;border-collapse:collapse;min-width:880px}th{text-align:left;background:#eaf0f4;color:#40566a;font-size:12px;padding:13px 15px;letter-spacing:.04em}td{padding:15px;border-top:1px solid var(--line);font-size:13px;vertical-align:top}td:nth-child(3),td:nth-child(5){color:var(--muted)}.pill{display:inline-block;padding:4px 8px;border-radius:10px;background:#eef3f6;color:#536a7c;font-size:11px}.empty-state{display:none;text-align:center;color:var(--muted);padding:50px}.company-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.company-card{background:white;border:1px solid var(--line);border-radius:6px;padding:21px;position:relative;overflow:hidden}.company-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--blue)}.company-card small{color:var(--muted);font-size:11px;letter-spacing:.06em}.company-card h3{font:20px Georgia,"Noto Serif SC",serif;margin:10px 0}.company-card p{font-size:13px;line-height:1.6;color:var(--muted);min-height:62px}.company-card span{font-size:12px;color:var(--blue)}.comparison-guide{margin-top:20px}.tag-list{display:flex;flex-wrap:wrap;gap:9px}.tag-list span{background:#edf2f5;border:1px solid #d9e2e8;padding:8px 11px;border-radius:3px;font-size:12px}.notes-layout{display:grid;grid-template-columns:1.5fr .7fr;gap:20px}.note-card{background:white;border:1px solid var(--line);padding:23px;margin-bottom:14px;border-radius:6px}.note-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:11px}.note-meta span{color:var(--blue);font-weight:700}.note-card h3{font:20px Georgia,"Noto Serif SC",serif;margin:12px 0}.note-card p{color:var(--muted);line-height:1.7;margin-bottom:0}.question-panel{height:max-content}.question-panel label{display:flex;gap:9px;line-height:1.5;padding:13px 0;border-top:1px solid var(--line);font-size:13px}input[type=checkbox]{accent-color:var(--blue)}@media(max-width:1100px){.driver-grid{grid-template-columns:repeat(2,1fr)}.company-grid{grid-template-columns:repeat(3,1fr)}.formula-panel{grid-template-columns:1fr}.formula{grid-template-columns:auto auto 1fr}.formula b:nth-of-type(2){display:none}}@media(max-width:760px){.app-shell{display:block}.sidebar{position:relative;height:auto;padding:16px}.sidebar nav{display:flex;overflow:auto;margin-top:14px}.brand{padding-bottom:14px}.sidebar-note{display:none}.nav-item{white-space:nowrap}.nav-item.active{box-shadow:inset 0 -3px #58b9d0}main{padding:24px 16px}.topbar{align-items:flex-start}.asof{font-size:11px}.formula-panel{padding:24px}.formula{display:flex;flex-wrap:wrap}.metric-strip{grid-template-columns:repeat(2,1fr)}.metric-strip article:nth-child(2){border-right:0}.metric-strip article:nth-child(-n+2){border-bottom:1px solid var(--line)}.driver-grid,.two-col,.logic-columns,.company-grid,.notes-layout{grid-template-columns:1fr}.logic-columns:before{display:none}.logic-connector{height:18px}.toolbar{align-items:stretch;flex-direction:column}.company-card p{min-height:auto}}