:root{--font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--color-bg: #ffffff;--color-surface: #f8fafc;--color-border: #e2e8f0;--color-text: #0f172a;--color-text-muted: #64748b;--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-green: #16a34a;--color-danger: #dc2626;--radius: 12px;--radius-sm: 8px;--shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .04);--shadow-lg: 0 10px 30px rgba(15, 23, 42, .1);--container: 1040px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--font-base);font-size:16px;line-height:1.65;color:var(--color-text);background:var(--color-bg);overflow-x:hidden}h1,h2,h3,h4{line-height:1.3;margin:0 0 .5em;color:var(--color-text)}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.15rem}p{margin:0 0 1em}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}img,svg{max-width:100%}.container{max-width:var(--container);margin:0 auto;padding:0 24px}@media(max-width:480px){.container{padding:0 20px}}.site-header{border-bottom:1px solid var(--color-border);background:var(--color-bg);position:sticky;top:0;z-index:50}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:64px}.logo{display:flex;align-items:center;gap:8px;font-size:1.25rem;font-weight:800;color:var(--color-text)}.logo:hover{text-decoration:none}.logo-badge{width:30px;height:30px;border-radius:8px;background:var(--color-green);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:800}.main-nav{display:flex;gap:20px;align-items:center}.main-nav a{color:var(--color-text);font-weight:500}.main-nav a:hover{color:var(--color-primary);text-decoration:none}.site-footer{border-top:1px solid var(--color-border);background:var(--color-surface);margin-top:64px;padding:32px 0;color:var(--color-text-muted);font-size:.9rem}.footer-grid{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between}.footer-links{display:flex;flex-wrap:wrap;gap:16px}.footer-links a{color:var(--color-text-muted)}.hero{padding:48px 0 32px;text-align:center}.hero h1{font-size:2.4rem;max-width:720px;margin:0 auto 12px}.hero p{color:var(--color-text-muted);max-width:600px;margin:0 auto 24px}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;padding:16px 0 8px}.tool-card{display:block;border:1px solid var(--color-border);border-radius:var(--radius);padding:20px;background:var(--color-bg);box-shadow:var(--shadow);transition:transform .15s ease,box-shadow .15s ease}.tool-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);text-decoration:none}.tool-card h3{margin:0 0 6px;font-size:1.05rem;color:var(--color-primary)}.tool-card p{margin:0;font-size:.9rem;color:var(--color-text-muted)}.section{padding:8px 0 32px}.section-title{font-size:1.3rem;margin:24px 0 8px;display:flex;align-items:center;gap:8px}.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.75rem;font-weight:600}.badge-finance{background:#eff6ff;color:var(--color-primary)}.badge-health{background:#f0fdf4;color:var(--color-green)}.badge-general{background:#f8fafc;color:var(--color-text-muted);border:1px solid var(--color-border)}.tool-page{padding-top:32px;padding-bottom:32px}.tool-page h1{margin-bottom:4px}.tool-meta{color:var(--color-text-muted);font-size:.9rem;margin-bottom:24px}.tool-layout{display:grid;grid-template-columns:1fr;gap:24px}@media(min-width:860px){.tool-layout{grid-template-columns:420px 1fr;align-items:start}}.calc-widget{border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);padding:24px;position:sticky;top:84px}.calc-widget h2{font-size:1.1rem;margin-bottom:16px}.field{margin-bottom:14px}.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:4px}.field input[type=number],.field input[type=text],.field select{width:100%;padding:9px 12px;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:1rem;background:var(--color-bg);color:var(--color-text)}.field input:focus,.field select:focus{outline:2px solid var(--color-primary);outline-offset:1px;border-color:transparent}.field-row{display:flex;gap:10px}.field-row .field{flex:1}.btn-calc{width:100%;padding:12px;border:0;border-radius:var(--radius-sm);background:var(--color-primary);color:#fff;font-size:1rem;font-weight:600;cursor:pointer;margin-top:6px}.btn-calc:hover{background:var(--color-primary-dark)}.results{margin-top:18px;border-top:1px dashed var(--color-border);padding-top:16px;display:none}.results.show{display:block}.result-item{display:flex;justify-content:space-between;align-items:baseline;padding:8px 0;border-bottom:1px solid var(--color-border)}.result-item:last-child{border-bottom:0}.result-item .label{font-size:.9rem;color:var(--color-text-muted)}.result-item .value{font-size:1.2rem;font-weight:700;color:var(--color-primary);white-space:nowrap}.result-item .hint{display:block;font-size:.8rem;color:var(--color-text-muted);font-weight:400}.prose h2{margin-top:32px;font-size:1.3rem}.prose ul,.prose ol{padding-left:22px;margin:0 0 1em}.prose li{margin-bottom:6px}.faq-list{border-top:1px solid var(--color-border)}.faq-item{border-bottom:1px solid var(--color-border);padding:14px 0}.faq-item details{cursor:pointer}.faq-item summary{font-weight:600;font-size:.98rem}.faq-item p{margin:10px 0 0;color:var(--color-text-muted)}.legal-page{max-width:760px;margin:0 auto;padding:40px 0}.legal-page h2{margin-top:28px;font-size:1.2rem}.error-page{text-align:center;padding:80px 20px}.error-page h1{font-size:3rem}.text-muted{color:var(--color-text-muted)}.mt-8{margin-top:32px}.mt-4{margin-top:16px}.mb-2{margin-bottom:8px}.input-wrap{display:flex;align-items:center;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg)}.input-wrap:focus-within{outline:2px solid var(--color-primary);outline-offset:1px;border-color:transparent}.input-wrap .input-affix{padding:0 12px;color:var(--color-text-muted);font-size:.9rem;white-space:nowrap}.input-wrap input{border:0;background:transparent;padding:9px 4px;min-width:0}.input-wrap input:focus{outline:none}.input-wrap input:first-child{padding-left:12px}.ad-slot{margin:28px 0;min-height:100px;display:flex;align-items:center;justify-content:center;background:var(--color-surface);border:1px dashed var(--color-border);border-radius:var(--radius);overflow:hidden}.ad-slot ins{max-width:100%}.breadcrumb{font-size:.85rem;color:var(--color-text-muted);margin-bottom:16px}.breadcrumb a{color:var(--color-text-muted)}.breadcrumb span{color:var(--color-text)}.calc-note{margin:12px 0 0;font-size:.85rem;color:var(--color-text-muted)}