:root{--bg: #ffffff;--fg: #14171c;--muted: #6b7280;--brand: #0b5fd9;--brand-dark: #0849a8;--accent: #ff6b00;--border: #e7e9ee;--radius: 12px;--maxw: 1120px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--fg);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--brand);text-decoration:none}a:hover{color:var(--brand-dark)}.app{min-height:100vh;display:flex;flex-direction:column}main{flex:1}.nav{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}.nav-inner{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;gap:32px;padding:15px 20px}.brand{font-weight:800;font-size:22px;letter-spacing:-.5px;color:var(--fg)}.brand span{color:var(--brand)}.nav nav{display:flex;gap:22px;font-size:14.5px;font-weight:500;flex:1}.nav nav a{color:#3b4453;padding:4px 2px;border-bottom:2px solid transparent}.nav nav a:hover{color:var(--brand);border-bottom-color:var(--brand)}.nav-cta{color:var(--accent)!important;font-weight:600}.nav-auth{display:flex;align-items:center;gap:14px}.btn-link{background:none;border:none;color:var(--brand);font-size:14px;cursor:pointer;font-weight:600}.btn-primary{display:inline-block;background:var(--brand);color:#fff!important;padding:11px 26px;border-radius:999px;font-weight:600;border:none;cursor:pointer;transition:background .2s;font-size:14.5px}.btn-primary:hover{background:var(--brand-dark)}.btn-sm{padding:8px 16px;font-size:13.5px}.btn-lg{padding:15px 40px;font-size:16px}.btn-block{width:100%;text-align:center}.btn-ghost{display:inline-block;border:1.5px solid var(--brand);color:var(--brand);padding:11px 26px;border-radius:999px;font-weight:600}.btn-ghost:hover{background:#f0f6ff}.hero{background:linear-gradient(180deg,#f2f7ff,#fff 55%);padding:84px 20px 56px;text-align:center;border-bottom:1px solid 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4px;letter-spacing:.03em}.qr-geom{margin-top:14px;padding-top:12px;border-top:1px solid var(--border)}.qr-label2{font-size:12px;font-weight:700;color:var(--brand);text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px}.table{width:100%;border-collapse:collapse}.table th{text-align:left;font-size:13px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);padding:10px 12px;border-bottom:2px solid var(--border)}.table td{padding:12px;border-bottom:1px solid var(--border);font-size:14.5px}.blog-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}.blog-card{border:1px solid var(--border);border-radius:var(--radius);padding:22px;background:#fff}.bc-date{color:var(--accent);font-size:12.5px;font-weight:600}.bc-title{font-size:18px;font-weight:700;margin:6px 0}.bc-desc{color:var(--muted);font-size:14px}.auth-form{margin-top:8px}.auth-form label{display:block;font-size:13px;font-weight:600;margin:14px 0 6px}.auth-form 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18px;font-size:14px;font-weight:600;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent}.tab.active{color:var(--brand);border-bottom-color:var(--brand)}.badge{padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}.b-pending,.b-draft{background:#fef3c7;color:#92400e}.b-paid,.b-accepted,.b-delivered{background:#d1fae5;color:#047857}.b-shipped,.b-sent{background:#dbeafe;color:#1d4ed8}.b-cancelled,.b-expired{background:#fee2e2;color:#b91c1c}@media(max-width:820px){.quote-layout,.steps{grid-template-columns:1fr}.quote-result{position:static}.hero h1{font-size:32px}.nav-inner{flex-wrap:wrap;gap:10px}.nav nav{order:3;width:100%;gap:14px;overflow-x:auto}.grid3,.grid2{grid-template-columns:1fr}.sec-title{font-size:24px}}.order-box{margin-top:18px;padding:16px 18px;border:1px solid var(--border);border-radius:12px;background:#fafbff}.order-box .qr-label2{margin-bottom:8px}.ship-form{display:flex;flex-direction:column;gap:9px;margin-top:6px}.ship-form 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