:root{--primary:#3b82f6;--bg:#ffffff;--text:#1e293b;--accent:#3b82f6;--font:'Inter', sans-serif;--navy:#1e40af;--navy2:#1d4ed8;--yellow:#3b82f6;--body-bg:#ffffff;--surface:#eff6ff;--border:#bfdbfe;--surface-solid:#f1f5f9}
*{margin:0;padding:0;box-sizing:border-box}
.skip-link{position:fixed;top:-200%;left:0;background:#000;color:#fff;padding:.75rem 1.5rem;z-index:9999;font-size:.9rem;font-weight:700;text-decoration:underline}.skip-link:focus{top:0;outline:3px solid #fff}
html{overflow-x:hidden}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;margin:0;padding:0;width:100%}
img{max-width:100%;height:auto;display:block}article img{border-radius:8px}
h1{font-size:2rem;margin:1rem 0;color:var(--text)}
h2{font-size:1.5rem;margin:1.5rem 0 .75rem;color:var(--text);border-bottom:2px solid var(--primary);padding-bottom:.5rem}
h3{font-size:1.2rem;margin:1rem 0 .5rem;color:var(--accent)}
p{margin:.75rem 0}
a{color:var(--primary);text-decoration:underline}a:hover{opacity:.85}
ul,ol{margin:.75rem 0 .75rem 1.5rem}li{margin:.25rem 0}
strong{color:var(--text)}
table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.92rem}
th,td{padding:.75rem;text-align:left;border-bottom:1px solid #e2e8f0}
th{background:var(--primary);color:#fff;font-weight:600}
tr:nth-child(even){background:rgba(0,0,0,.03)}
.site-header{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid rgba(128,128,128,.15);backdrop-filter:blur(8px)}
.hdr-inner{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:.7rem 2rem}
.hdr-brand{font-weight:700;font-size:1rem;color:var(--text);text-decoration:none}
.hdr-nav a{margin-left:1rem;font-size:.85rem;color:var(--text);text-decoration:underline;padding:.5rem .4rem;min-height:48px;display:inline-flex;align-items:center}.hdr-nav a:hover{color:var(--primary)}
.breadcrumb{font-size:.8rem;color:#64748b;margin-bottom:1rem;padding:0}
.breadcrumb a{color:var(--primary);font-size:.8rem;text-decoration:underline}
.sibling-nav{margin:1.5rem 0;padding:1rem 1.2rem;background:var(--surface-solid);border-radius:10px}
.sibling-nav ul{list-style:none;padding:0;margin:0}
.sibling-nav li{padding:.4rem 0;border-bottom:1px solid rgba(128,128,128,.1)}.sibling-nav li:last-child{border-bottom:none}
.sibling-nav a{color:var(--primary);font-size:.9rem;text-decoration:underline;min-height:44px;display:flex;align-items:center}
.hero-img{max-width:100%;height:auto;aspect-ratio:1/1;border-radius:12px;margin-bottom:1.5rem}
.author-box{background:var(--surface-solid);padding:1rem;border-radius:8px;margin:1.5rem 0;font-size:.85rem;display:flex;align-items:center}
.reading-time{display:inline-block;margin-left:1rem;padding:.2rem .6rem;background:var(--primary);color:#fff;border-radius:4px;font-size:.75rem;font-weight:600}
.toc{background:var(--surface-solid);border:1px solid rgba(128,128,128,.15);border-radius:10px;padding:1.2rem 1.5rem;margin:1.5rem 0}
.toc-title{font-weight:700;font-size:1rem;margin:0 0 .7rem;color:var(--text)}
.toc ol{margin:0;padding:0 0 0 1.2rem}.toc li{padding:.3rem 0;font-size:.88rem}.toc a{color:var(--primary);text-decoration:underline}
.sib-heading{font-weight:700;font-size:.95rem;margin:0 0 .5rem;color:var(--text)}
.ymyl-disclaimer{background:#fef3c7;border:1px solid #fde68a;padding:1rem;border-radius:8px;margin:1rem 0;font-size:.85rem;color:#92400e}
.related-block{background:var(--surface-solid);padding:1.2rem 1.5rem;border-radius:10px;margin:2rem 0;content-visibility:auto;contain-intrinsic-size:auto 200px}
.related-block h3{margin-top:0;font-size:1rem}
.related-block ul{list-style:none;padding:0;margin:.5rem 0 0}.related-block li{padding:.35rem 0}
.related-block a{color:var(--primary);font-size:.9rem;text-decoration:underline;min-height:44px;display:inline-flex;align-items:center}
.cta-banner-article{background:linear-gradient(135deg,var(--primary),var(--accent,var(--primary)));border-radius:14px;padding:2rem;margin:2rem 0;text-align:center}
.cta-banner-inner h3{color:#fff;font-size:1.4rem;margin-bottom:.3rem;border:none;padding:0}
.cta-banner-inner p{color:rgba(255,255,255,.85);margin-bottom:1rem;font-size:.95rem}
.cta-buttons{display:flex;justify-content:center;gap:.8rem;flex-wrap:wrap}
.cta-main-link{display:inline-flex;align-items:center;background:#fff;color:var(--primary);padding:.85rem 2rem;border-radius:10px;font-weight:700;font-size:1.05rem;text-decoration:none;box-shadow:0 4px 15px rgba(0,0,0,.15);min-height:48px}
.cta-phone-link{display:inline-flex;align-items:center;background:rgba(255,255,255,.15);color:#fff;border:2px solid rgba(255,255,255,.4);padding:.85rem 1.5rem;border-radius:10px;font-weight:700;font-size:1.05rem;text-decoration:none;min-height:48px}
.cta-inline{display:flex;align-items:center;gap:1rem;background:var(--surface-solid);border:2px solid var(--primary);border-radius:12px;padding:1.2rem 1.5rem;margin:1.5rem 0}
.cta-inline-icon{font-size:2rem;flex-shrink:0}
.cta-inline-text{flex:1}.cta-inline-text strong{display:block;font-size:1rem;color:var(--text)}.cta-inline-text span{font-size:.85rem;opacity:.85}
.cta-inline-btns{display:flex;flex-direction:column;gap:.4rem;flex-shrink:0}
.cta-inline-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;padding:.6rem 1.2rem;border-radius:8px;font-weight:600;font-size:.85rem;text-decoration:none;min-height:44px}
.cta-inline-phone{display:inline-flex;align-items:center;color:var(--primary);font-weight:700;font-size:.9rem;text-decoration:none;min-height:44px}
.cta-sticky{position:fixed;bottom:0;left:0;right:0;background:var(--primary);display:flex;justify-content:center;gap:1.5rem;padding:.75rem 1rem;z-index:90;box-shadow:0 -4px 20px rgba(0,0,0,.15)}
.cta-sticky a{color:#fff;font-weight:700;font-size:.95rem;text-decoration:none;min-height:44px;display:inline-flex;align-items:center}
.adsense-slot{text-align:center;margin:1.5rem 0;padding:1rem;background:var(--surface-solid);border-radius:8px;font-size:.75rem;color:#94a3b8}
footer{margin-top:3rem;padding:1.5rem 0 3.5rem;border-top:1px solid #e2e8f0;font-size:.85rem;color:#94a3b8;content-visibility:auto;contain-intrinsic-size:auto 100px}
footer a{color:var(--primary);min-height:44px;display:inline-flex;align-items:center;padding:0 .3rem}
@media(max-width:768px){body{padding:12px}h1{font-size:1.5rem}h2{font-size:1.25rem}.local-content{grid-template-columns:1fr!important;padding:1.5rem 1rem!important}.local-sidebar{position:static}.cta-inline{flex-direction:column;text-align:center}.cta-sticky{gap:.8rem;padding:.6rem}.cta-sticky a{font-size:.85rem}}