*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Arial,Helvetica,sans-serif;line-height:1.7;color:#24323a;background:#fff}
a{color:#087f7b;text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(1120px,92%);margin:auto}
header{background:#fff;border-bottom:1px solid #e5e7eb;position:sticky;top:0;z-index:1000}
.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{font-size:1.45rem;font-weight:800;color:#087f7b}
nav ul{list-style:none;display:flex;gap:22px;flex-wrap:wrap}
nav a{color:#35464f;font-weight:600}
.hero{background:linear-gradient(135deg,#edfafa,#f8ffff);padding:75px 0}
.hero-inner,.hero-content{max-width:850px;margin:auto;text-align:center}
.eyebrow,.category{color:#087f7b;font-weight:700;text-transform:uppercase;letter-spacing:1px;font-size:.85rem;margin-bottom:14px}
h1{color:#17383f;font-size:clamp(2.3rem,5vw,3.7rem);line-height:1.1;margin-bottom:20px}
h2{color:#17383f;font-size:1.8rem;line-height:1.25;margin:42px 0 14px}
h3{color:#20454c;margin:26px 0 10px}
p{margin-bottom:18px}
section{padding:60px 0}
.content,.article{max-width:880px;margin:auto}
.intro{font-size:1.15rem;color:#53656c}
.updated,.small{font-size:.9rem;color:#6d7d83}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{border:1px solid #e1e7e9;border-radius:14px;padding:26px;background:#fff;box-shadow:0 8px 25px rgba(0,0,0,.04)}
.card h3{margin-top:0}
.box,.quick,.highlight{background:#eaf8f7;border-left:5px solid #087f7b;border-radius:8px;padding:25px;margin:28px 0}
.warning,.affiliate{background:#fff8e8;border-left:5px solid #e8ad35;border-radius:8px;padding:24px;margin:28px 0}
.button{display:inline-block;background:#087f7b;color:#fff;padding:13px 22px;border-radius:8px;font-weight:700}
.button:hover{background:#066966;text-decoration:none}
ul,ol{margin:0 0 22px 25px}
li{margin-bottom:9px}
.table-wrap{overflow-x:auto;margin:28px 0}
table{width:100%;border-collapse:collapse;min-width:680px}
th{background:#17383f;color:#fff;padding:14px;text-align:left}
td{padding:14px;border-bottom:1px solid #dfe7e9;vertical-align:top}
tr:nth-child(even){background:#f7fafb}
footer{background:#17383f;color:#dbe4e6;padding:45px 0;text-align:center;margin-top:30px}
.footer-links{display:flex;justify-content:center;flex-wrap:wrap;gap:20px;margin-bottom:20px}
footer a{color:#dbe4e6}
@media(max-width:800px){
 .nav{flex-direction:column;padding:17px 0}
 nav ul{justify-content:center;gap:13px}
 .hero{padding:55px 0}
 section{padding:45px 0}
 .grid,.grid2{grid-template-columns:1fr}
}