:root{--navy:#17344c;--blue:#28728e;--aqua:#dceff1;--ink:#17222a;--muted:#66737c;--line:#dfe6e9;--paper:#fff;--soft:#f3f7f8;--orange:#e48b3d}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;line-height:1.8}.wrap{width:min(1080px,calc(100% - 40px));margin:auto}.hero{padding:88px 0 76px;color:#fff;background:linear-gradient(115deg,rgba(16,47,70,.98),rgba(35,104,130,.88)),radial-gradient(circle at 80% 20%,#5eaabb,transparent 45%)}.eyebrow,.section-no{margin:0 0 8px;color:var(--blue);font-weight:800;letter-spacing:.18em}.hero .eyebrow{color:#a9dbe3}.hero h1{margin:0;font-size:clamp(2.4rem,7vw,4.6rem);line-height:1.22;letter-spacing:.04em}.lead{max-width:700px;margin:24px 0 0;font-size:1.1rem}.section{padding:76px 0}.section h2,.maintenance h2{margin:0 0 20px;font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.35}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px}.card{padding:24px;border:1px solid var(--line);border-top:4px solid var(--blue);background:#fff;box-shadow:0 8px 24px rgba(18,48,66,.06)}.card.waterproof{border-top-color:var(--orange)}.card span{color:var(--muted);font-size:.88rem;font-weight:700}.card h3{min-height:3.4em;margin:8px 0 12px;font-size:1.05rem}.card strong{display:block;color:var(--navy);font-size:3rem;line-height:1}.card small{margin-left:4px;font-size:1rem}.note{margin-top:24px;color:var(--muted);font-size:.9rem}.maintenance{padding:70px 0;background:var(--navy);color:#fff}.maintenance-inner{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px}.section-no.light{color:#8bc3d0}.condition{padding:34px;border-left:5px solid var(--orange);background:rgba(255,255,255,.08)}.condition-label{margin:0;color:#c9e4e9;font-weight:700}.condition-main{margin:8px 0 20px;font-size:1.5rem;font-weight:800;line-height:1.45}.condition-main em{color:#ffc081;font-size:2.2rem;font-style:normal}.feature{max-width:850px;padding:30px 34px;border-left:5px solid var(--blue);background:var(--soft)}.feature h3{margin-top:0;color:var(--navy)}.soft{background:var(--soft)}.exclude-list{margin:28px 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}.exclude-list li{display:grid;grid-template-columns:220px 1fr;gap:24px;padding:18px 4px;border-bottom:1px solid var(--line)}.exclude-list b{color:var(--navy)}.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:30px 0 0;padding:0;list-style:none}.flow li{display:flex;gap:16px;padding:26px;background:#fff;border:1px solid var(--line)}.flow li>span{display:grid;flex:0 0 42px;height:42px;place-items:center;border-radius:50%;background:var(--blue);color:#fff;font-size:1.2rem;font-weight:800}.flow h3{margin:0 0 8px}.flow p{margin:0;color:var(--muted);font-size:.95rem}footer{padding:60px 0;background:#102838;color:#fff;text-align:center}footer p{margin:0 0 8px}footer h2{margin:0 0 8px}footer a{display:block;color:#fff;font-size:2rem;font-weight:800;text-decoration:none}footer small{display:block;margin-top:8px;color:#bcd1da}@media(max-width:760px){.hero{padding:62px 0 54px}.section{padding:56px 0}.cards,.flow{grid-template-columns:1fr 1fr}.maintenance-inner{grid-template-columns:1fr;gap:20px}.exclude-list li{grid-template-columns:1fr;gap:3px}}@media(max-width:520px){.wrap{width:min(100% - 28px,1080px)}.cards,.flow{grid-template-columns:1fr}.card h3{min-height:auto}.condition{padding:24px}.exclude-list li{padding:16px 0}}