:root{
  --ink:#0d2b3e; --green:#4a8f36; --green2:#6ba24e; --cream:#f8f7f2;
  --mint:#edf6ec; --blue:#eaf4f8; --line:#d9e2e6; --muted:#5a6b75; --white:#fff;
  --shadow:0 14px 40px rgba(13,43,62,.09); --radius:22px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:#fff;line-height:1.6}
a{color:#155f7a;text-decoration-thickness:1px;text-underline-offset:3px} img{max-width:100%;display:block}.mobile-buy{display:none}
.wrap{width:min(1120px,calc(100% - 36px));margin:auto}.topbar{background:var(--ink);color:#fff;font-size:.92rem;padding:8px 0;text-align:center}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid #e9eef0}.nav{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:14px 0}.brand{font-weight:900;letter-spacing:.02em;color:var(--ink);text-decoration:none}.brand span{color:var(--green)}.navlinks{display:flex;align-items:center;gap:20px;font-size:.94rem}.navlinks a{text-decoration:none;color:var(--ink)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 18px;font-weight:800;text-decoration:none;border:1px solid transparent}.btn.primary{background:var(--green);color:#fff}.btn.outline{border-color:var(--ink);color:var(--ink);background:#fff}
.hero{background:linear-gradient(120deg,#f7fbfc 0%,#eef7ee 100%);padding:70px 0 48px;border-bottom:1px solid #e4ecee}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.hero-product{box-shadow:var(--shadow)}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-weight:900;font-size:.78rem;color:var(--green)}h1{font-family:Georgia,serif;font-size:clamp(2.7rem,6vw,5.3rem);line-height:.96;margin:.35rem 0 1rem;letter-spacing:-.035em}.lead{font-size:1.15rem;color:#324c5a;max-width:700px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0}.trust{display:flex;gap:18px;flex-wrap:wrap;font-size:.91rem;color:#3b5c68}.visual-card{background:#fff;border:1px solid #dfe8e9;border-radius:28px;padding:26px;box-shadow:var(--shadow)}.product-img{border-radius:18px;background:#f5f5f5;aspect-ratio:1/1;object-fit:contain;width:100%}.caption{font-size:.84rem;color:var(--muted);margin-top:10px}
section{padding:64px 0}.section-head{max-width:780px;margin-bottom:32px}.section-head h2,h2{font-family:Georgia,serif;font-size:clamp(2rem,4vw,3.25rem);line-height:1.05;margin:.2rem 0 .7rem}.section-head p{font-size:1.05rem;color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 8px 24px rgba(13,43,62,.04)}.card h3{margin-top:0;font-size:1.18rem}.card p{color:#4e626d}.card .num{font-family:Georgia,serif;font-size:2.2rem;color:var(--green);font-weight:700}
.compare{background:var(--cream)}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.panel{background:#fff;border-radius:var(--radius);padding:26px;border:1px solid var(--line)}.panel.good{border-top:6px solid var(--green)}.panel.warn{border-top:6px solid #b27c2c}.panel ul{padding-left:20px}.note{background:#fff7e8;border-left:5px solid #d59a36;padding:18px;border-radius:12px}
.calculator{background:var(--ink);color:#fff;border-radius:30px;padding:34px;box-shadow:var(--shadow)}.calc-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:start}.calculator h2{color:#fff}.btn.light{background:#fff;color:var(--ink);margin-top:4px}.field{background:#12394f;border:1px solid #2b5267;border-radius:18px;padding:18px}.field label{display:block;font-weight:800;margin-bottom:8px}.weight-row{display:flex;gap:10px;align-items:center}.weight-row input{width:120px;font-size:1.5rem;padding:10px;border-radius:12px;border:0}.range{width:100%;margin-top:16px}.results{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.result{background:#fff;color:var(--ink);border-radius:16px;padding:18px}.result small{display:block;color:#60717a}.result strong{font-size:1.28rem}.calc-foot{font-size:.84rem;color:#c4d5de;margin-top:14px}
.product{background:var(--mint)}.benefit-band{background:#fff}.guides-section{background:#f8fafb}.product-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:36px;align-items:center}.product-box{background:#fff;border-radius:28px;padding:22px;border:1px solid #d8e8d5}.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:24px 0}.fact{background:#fff;border:1px solid #dbe9d7;border-radius:16px;padding:15px}.fact strong{display:block;font-size:1.1rem}.sales-list{padding-left:1.3rem}.sales-list li{margin:.45rem 0}
.guide-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.guide{border:1px solid var(--line);border-radius:18px;padding:22px;text-decoration:none;color:var(--ink);background:#fff}.guide:hover{box-shadow:var(--shadow)}.guide small{color:var(--green);font-weight:900;text-transform:uppercase;letter-spacing:.08em}.guide h3{margin:.3rem 0}.guide p{margin:0;color:var(--muted)}
.faq details{border-top:1px solid var(--line);padding:18px 0}.faq summary{font-weight:800;cursor:pointer}.faq p{color:var(--muted)}
footer{background:#0a2434;color:#d8e5eb;padding:42px 0}.foot{display:grid;grid-template-columns:1.3fr .7fr .7fr;gap:30px}.foot a{color:#fff}.fine{font-size:.82rem;color:#9eb1bb;margin-top:28px}
.breadcrumb{font-size:.86rem;color:#667b86;margin:24px 0}.article{width:min(820px,calc(100% - 36px));margin:auto;padding:34px 0 70px}.article h1{font-size:clamp(2.5rem,5vw,4.4rem)}.article h2{font-size:2rem;margin-top:2.3rem}.article p,.article li{font-size:1.04rem}.callout{background:var(--blue);border-radius:18px;padding:20px;margin:24px 0}.article-nav{display:flex;gap:12px;flex-wrap:wrap;margin-top:36px}
@media(max-width:850px){.navlinks{display:none}.mobile-buy{display:inline-flex;background:var(--green);color:#fff;text-decoration:none;padding:9px 13px;border-radius:999px;font-weight:800;font-size:.85rem}.hero-grid,.calc-grid,.product-grid,.compare-grid,.foot{grid-template-columns:1fr}.cards{grid-template-columns:1fr}.guide-list{grid-template-columns:1fr}.facts{grid-template-columns:1fr 1fr}.hero{padding-top:48px}.results{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.results,.facts{grid-template-columns:1fr}.hero-actions{flex-direction:column}.btn{width:100%}}