:root{--ink:#14333b;--muted:#5e747a;--sea:#0f7d89;--sea2:#0b5f69;--sand:#f5efe4;--sun:#e9a13a;--paper:#fff;--line:#dbe6e6;--shadow:0 18px 45px rgba(20,51,59,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fbfdfc;line-height:1.72}
a{color:var(--sea2);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:#063e45}img{max-width:100%;display:block}.container{width:min(1120px,calc(100% - 36px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.93);backdrop-filter:blur(14px);border-bottom:1px solid rgba(20,51,59,.08)}.header-inner{height:72px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:850;font-size:1.22rem;white-space:nowrap}.logo-mark{width:34px;height:34px;border-radius:50%;background:linear-gradient(145deg,var(--sea),#38a4a0);position:relative}.logo-mark:after{content:"";position:absolute;width:14px;height:11px;border-radius:55%;background:var(--sand);left:10px;top:12px;transform:rotate(-12deg)}
.main-nav{display:flex;gap:18px;margin-left:auto;align-items:center}.main-nav a{text-decoration:none;color:var(--ink);font-size:.93rem;font-weight:700}.main-nav a:hover{color:var(--sea)}.menu-btn{display:none;margin-left:auto;background:none;border:0;font-size:1.5rem;color:var(--ink)}
.hero{position:relative;min-height:520px;display:flex;align-items:flex-end;overflow:hidden;background:#173a42}.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.74}.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,31,37,.88),rgba(6,31,37,.42) 54%,rgba(6,31,37,.12)),linear-gradient(0deg,rgba(6,31,37,.55),transparent 60%)}
.hero-content{position:relative;z-index:2;color:white;padding:80px 0 68px;max-width:830px}.kicker{text-transform:uppercase;letter-spacing:.17em;font-size:.78rem;font-weight:800;color:#d5efec}.hero h1{font-size:clamp(2.5rem,6vw,5rem);line-height:1.01;margin:.2em 0 .23em;letter-spacing:-.045em}.hero p{font-size:1.16rem;max-width:760px;color:#f4fbfa;margin:0}.breadcrumbs{font-size:.83rem;margin-bottom:16px;color:#d8e7e6}.breadcrumbs a{color:white}
main{padding:52px 0 72px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:52px;align-items:start}.content h2{font-size:clamp(1.55rem,3vw,2.25rem);line-height:1.18;letter-spacing:-.025em;margin:2.1em 0 .55em}.content h2:first-child{margin-top:0}.content p{font-size:1.04rem;margin:.85em 0}
.sidebar{position:sticky;top:100px}.side-card{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:0 10px 30px rgba(20,51,59,.06);margin-bottom:18px}.side-card h3{margin:0 0 12px;font-size:1.05rem}.side-card a{display:block;padding:7px 0;text-decoration:none;font-weight:650;border-bottom:1px solid #edf2f1}.side-card a:last-child{border:0}
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:24px 0}.card{background:white;border:1px solid var(--line);border-radius:18px;padding:20px;text-decoration:none;display:flex;flex-direction:column;gap:3px;box-shadow:0 8px 22px rgba(20,51,59,.05);transition:.2s}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.card span{font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--sea);font-weight:800}.card strong{color:var(--ink);font-size:1.1rem}.card small{color:var(--muted);font-size:.9rem}
.checklist{list-style:none;padding:0!important;margin:20px 0}.checklist li{position:relative;padding:12px 14px 12px 44px;background:white;border:1px solid var(--line);border-radius:12px;margin:9px 0}.checklist li:before{content:"✓";position:absolute;left:14px;top:10px;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:#dcefed;color:var(--sea2);font-weight:900}
.button-row{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0}.btn{display:inline-block;background:var(--sea);color:white!important;text-decoration:none;padding:12px 18px;border-radius:999px;font-weight:800}.btn:hover{background:var(--sea2)}.btn-secondary{background:#e9f3f2;color:var(--sea2)!important}
.price-box{padding:22px;border-radius:16px;background:var(--sand);border-left:5px solid var(--sun);margin:22px 0}.source-link{display:inline-block;background:#e9f3f2;padding:10px 14px;border-radius:10px;font-weight:700}
.faq{margin-top:55px;border-top:1px solid var(--line);padding-top:30px}.faq h2{margin-top:0}.faq details{background:white;border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin:10px 0}.faq summary{cursor:pointer;font-weight:800}.faq details p{margin:.65em 0 0;color:#425c62}
.cta{margin-top:54px;background:linear-gradient(135deg,#0e737d,#174d55);color:white;border-radius:24px;padding:30px}.cta h2{margin:0 0 10px}.cta p{color:#e8f5f4}.cta a{color:white}
.site-footer{background:#102f36;color:#d8e4e5;padding:48px 0 28px}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px}.site-footer h3{color:white;margin:0 0 12px}.site-footer a{color:#e6f2f2;display:block;text-decoration:none;padding:4px 0}.site-footer p{color:#b9cccf}.fineprint{border-top:1px solid rgba(255,255,255,.12);margin-top:32px;padding-top:20px;font-size:.82rem;color:#aac1c4}
@media(max-width:900px){.article-layout{grid-template-columns:1fr}.sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:14px}.hero{min-height:470px}.main-nav{display:none;position:absolute;top:72px;left:0;right:0;background:white;padding:18px 24px;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start}.main-nav.open{display:flex}.menu-btn{display:block}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.container{width:min(100% - 26px,1120px)}.hero{min-height:500px}.hero-content{padding:62px 0 48px}.hero h1{font-size:2.7rem}.card-grid{grid-template-columns:1fr}.sidebar{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.content p{font-size:1rem}}