:root{--bg:#0f172a;--surface:#ffffff;--surface-muted:#f1f5f9;--border:#d8dee9;--text:#1e293b;--text-muted:#64748b;--accent:#0e7490;--accent-strong:#155e75;--cheap:#15803d;--cheap-bg:#ecfdf5;--warn:#b45309;--warn-bg:#fffbeb;--warn-border:#fcd34d;--danger:#b91c1c;--radius:10px;--shadow:0 1px 3px rgba(15,23,42,0.08),0 1px 2px rgba(15,23,42,0.06)}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:Segoe UI,Hiragino Kaku Gothic ProN,Noto Sans JP,system-ui,sans-serif;color:var(--text);background:var(--surface-muted);line-height:1.6}.site-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:14px 28px;background:var(--bg);color:#e2e8f0}.brand{font-size:20px;font-weight:700;letter-spacing:.02em}.brand-mark{color:#f59e0b;margin-right:6px}.site-nav{display:flex;gap:8px;flex-wrap:wrap}.site-nav a{color:#cbd5e1;text-decoration:none;padding:6px 12px;border-radius:8px;font-size:14px}.site-nav a:hover{background:rgba(255,255,255,.1);color:#fff}.site-main{max-width:1080px;margin:0 auto;padding:28px 20px 64px}.site-footer{text-align:center;color:var(--text-muted);font-size:13px;padding:24px}h1{font-size:26px;margin:0 0 6px}.lead{color:var(--text-muted);margin:0 0 24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.stack{display:flex;flex-direction:column;gap:16px}label{display:block;font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:4px}input[type=number],input[type=text],select,textarea{width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit;background:#fff;color:var(--text)}textarea{resize:vertical;min-height:140px}.field-low input,.field-low select{border-color:var(--warn-border);background:var(--warn-bg)}.low-badge{display:inline-block;font-size:11px;font-weight:700;color:var(--warn);background:var(--warn-bg);border:1px solid var(--warn-border);border-radius:999px;padding:1px 8px;margin-left:6px}.grid{display:grid;grid-gap:14px;gap:14px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.row-inline{display:flex;align-items:center;gap:8px}.row-inline label{margin:0}button{font-family:inherit;font-size:14px;font-weight:600;border-radius:8px;border:1px solid transparent;padding:10px 18px;cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-strong)}.btn-ghost{background:transparent;border-color:var(--border);color:var(--text)}.btn-link{background:none;border:none;color:var(--danger);padding:4px;font-size:13px}.item-card{border:1px solid var(--border);border-radius:8px;padding:14px;background:var(--surface-muted)}.item-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;font-weight:700}.review-banner{background:var(--warn-bg);border:1px solid var(--warn-border);border-radius:var(--radius);padding:14px 16px;color:var(--warn)}.review-banner strong{display:block;margin-bottom:6px}.review-banner ul{margin:0;padding-left:20px}.results-grid{display:grid;grid-gap:16px;gap:16px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.carrier-card{position:relative;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);padding:18px}.carrier-card.cheapest{border-color:var(--cheap);box-shadow:0 0 0 2px rgba(21,128,61,.18)}.cheap-badge{position:absolute;top:-10px;right:14px;background:var(--cheap);color:#fff;font-size:11px;font-weight:700;padding:3px 10px;border-radius:999px}.carrier-name{font-size:16px;font-weight:700;margin-bottom:2px}.carrier-total{font-size:28px;font-weight:800;color:var(--accent-strong)}.carrier-meta{font-size:12px;color:var(--text-muted);margin:6px 0 12px}table.lineitems{width:100%;border-collapse:collapse;font-size:13px}table.lineitems td{padding:6px 0;border-bottom:1px dashed var(--border)}table.lineitems td.amount{text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}table.lineitems tr.subtotal td,table.lineitems tr.total td{font-weight:700;border-bottom:none}table.lineitems tr.total td{border-top:2px solid var(--text);padding-top:8px;font-size:15px}.needs-review-tag{display:inline-block;font-size:11px;font-weight:700;color:var(--warn);background:var(--warn-bg);border:1px solid var(--warn-border);border-radius:999px;padding:1px 8px;margin-left:8px}.muted{color:var(--text-muted)}.error-box{background:#fef2f2;border:1px solid #fecaca;color:var(--danger);border-radius:8px;padding:12px 14px;font-size:14px}.home-grid{display:grid;grid-gap:16px;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));margin-top:24px}.home-card{display:block;text-decoration:none;color:inherit;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:20px;box-shadow:var(--shadow)}.home-card:hover{border-color:var(--accent)}.home-card h3{margin:0 0 6px;color:var(--accent-strong)}