*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:linear-gradient(180deg,#e0f2fe 0%,#bae6fd 50%,#7dd3fc 100%);background-attachment:fixed;min-height:100vh;color:#0c4a6e;line-height:1.6}
.container{max-width:1200px;margin:0 auto;padding:0 16px}
.site-header{background:rgba(255,255,255,.85);backdrop-filter:blur(8px);position:sticky;top:0;z-index:50;box-shadow:0 2px 8px rgba(14,116,144,.1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 16px}
.logo{font-size:22px;font-weight:800;color:#0369a1;text-decoration:none}
.main-nav{display:flex;gap:18px;align-items:center}
.main-nav a,.dropdown button{color:#075985;text-decoration:none;font-weight:500;background:none;border:none;cursor:pointer;font-size:15px}
.main-nav a:hover{color:#0284c7}
.dropdown{position:relative}
.dropdown-menu{display:none;position:absolute;top:100%;right:0;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.12);border-radius:8px;padding:8px;min-width:220px}
.dropdown-menu a{display:block;padding:8px 12px;border-radius:6px}
.dropdown-menu a:hover{background:#e0f2fe}
.dropdown:hover .dropdown-menu{display:block}
.hamburger{display:none;background:none;border:none;font-size:24px;cursor:pointer}
@media(max-width:768px){
 .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:16px;gap:10px}
 body.menu-open .main-nav{display:flex}
 body.menu-open .dropdown-menu{display:block;position:static;box-shadow:none;padding:0 0 0 16px}
 .hamburger{display:block}
}
.hero{position:relative;border-radius:16px;overflow:hidden;margin:20px 0;box-shadow:0 10px 30px rgba(2,132,199,.2)}
.hero img{width:100%;display:block;height:auto}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(2,132,199,.4),rgba(3,105,161,.7));display:flex;flex-direction:column;justify-content:center;align-items:center;color:#fff;text-align:center;padding:20px}
.hero-overlay h1{font-size:clamp(24px,5vw,44px);text-shadow:0 2px 8px rgba(0,0,0,.5);margin-bottom:12px}
.hero-overlay p{font-size:clamp(14px,2.5vw,18px);max-width:700px;text-shadow:0 1px 4px rgba(0,0,0,.5)}
.btn{display:inline-block;background:#0284c7;color:#fff;padding:12px 24px;border-radius:8px;text-decoration:none;font-weight:600;margin-top:16px;transition:.2s}
.btn:hover{background:#0369a1;transform:translateY(-2px)}
.section-title{font-size:28px;margin:32px 0 16px;color:#0c4a6e;border-left:4px solid #0284c7;padding-left:12px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 12px rgba(2,132,199,.15);transition:.2s;text-decoration:none;color:inherit}
.card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(2,132,199,.25)}
.card .thumb{aspect-ratio:16/10;overflow:hidden;position:relative;background:#e0f2fe}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .badge{position:absolute;top:8px;left:8px;background:rgba(3,105,161,.9);color:#fff;padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600}
.card .value{position:absolute;top:8px;right:8px;background:rgba(255,255,255,.95);color:#0c4a6e;padding:4px 10px;border-radius:6px;font-size:12px;font-weight:700}
.card-body{padding:14px}
.card h3{font-size:16px;margin-bottom:6px;color:#0c4a6e}
.card .cta{color:#0284c7;font-weight:600;font-size:14px}
.ad-wrap{margin:20px auto;max-width:1200px;padding:0 16px;text-align:center;min-height:60px}
.article{background:#fff;border-radius:12px;padding:24px;margin:20px 0;box-shadow:0 4px 12px rgba(2,132,199,.1)}
.article h1{color:#0c4a6e;margin-bottom:16px;font-size:28px}
.article p{margin-bottom:14px;color:#164e63}
.step-thumb{border-radius:12px;overflow:hidden;margin:16px 0;max-width:600px}
.step-thumb img{width:100%;display:block}
.code-box{background:#0c4a6e;color:#7dd3fc;padding:16px;border-radius:8px;font-family:monospace;font-size:16px;margin:10px 0;word-break:break-all}
.steps-nav{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}
.steps-nav a{padding:8px 14px;background:#fff;border-radius:6px;text-decoration:none;color:#075985;border:1px solid #bae6fd}
.steps-nav a.active{background:#0284c7;color:#fff}
.site-footer{background:#0c4a6e;color:#e0f2fe;margin-top:40px;padding:32px 0 16px}
.foot-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px;margin-bottom:24px}
.foot-cols h4{color:#7dd3fc;margin-bottom:10px}
.foot-cols a{display:block;color:#bae6fd;text-decoration:none;padding:4px 0;font-size:14px}
.copy{text-align:center;padding-top:16px;border-top:1px solid #164e63;font-size:13px}
.trust{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:24px 0}
.trust-item{background:rgba(255,255,255,.7);padding:16px;border-radius:10px;text-align:center}
.trust-item .icon{font-size:32px;margin-bottom:8px}