:root{--ink:#172b35;--mute:#61717b;--teal:#067d73;--light:#e9f6f3;--line:#dce7e7;--bg:#f7faf9;--orange:#e8a253}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;line-height:1.8}a{color:var(--teal)}.top{background:white;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.bar{max-width:1100px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 20px}.brand{font-weight:900;font-size:21px;text-decoration:none;color:var(--ink);letter-spacing:-.04em}.brand span{color:var(--teal)}nav{display:flex;gap:18px;flex-wrap:wrap}nav a{font-size:13px;text-decoration:none;color:#40515b;font-weight:700}.container{max-width:1100px;margin:auto;padding:0 20px}.hero{padding:75px 0 60px;background:linear-gradient(125deg,#093d43,#087c73);color:white}.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.4;max-width:800px;letter-spacing:-.045em}.hero p{max-width:660px;color:#d8f0ed}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.14em;color:#80e8d2}.hero .eyebrow{color:#9cf1de}.button{display:inline-block;border:none;border-radius:10px;background:var(--teal);color:white!important;font:inherit;font-weight:800;font-size:14px;padding:12px 20px;text-decoration:none;cursor:pointer}.button.light{background:white;color:var(--teal)!important}.button.outline{background:white;border:1px solid var(--line);color:var(--ink)!important}.hero .button{margin-top:14px}.section{padding:48px 0}.section h2{font-size:27px;letter-spacing:-.03em;margin:0 0 7px}.muted{color:var(--mute)}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{background:white;border:1px solid var(--line);border-radius:16px;padding:25px;display:flex;flex-direction:column;min-height:210px;box-shadow:0 8px 25px #123c3c08}.card h3{margin:8px 0;font-size:19px;line-height:1.5}.card p{color:#526570;font-size:14px;flex:1}.tag{align-self:start;border-radius:30px;background:var(--light);color:var(--teal);font-size:11px;font-weight:800;padding:4px 10px}.card a{font-weight:800;text-decoration:none}.adnotice{font-size:12px;background:#f1f5f4;padding:10px 18px;color:#4b6069;text-align:center}.filters{display:flex;gap:9px;flex-wrap:wrap;margin:22px 0}.filters button{border:1px solid #bdd6d3;background:white;color:var(--ink);padding:9px 16px;border-radius:30px;cursor:pointer}.filters button.active{background:var(--teal);color:white}.article{background:white;padding:43px;max-width:850px;margin:40px auto;border-radius:18px;border:1px solid var(--line)}.article h1{font-size:clamp(27px,4vw,40px);line-height:1.45;letter-spacing:-.03em}.article h2{margin-top:40px;border-bottom:1px solid var(--line);padding-bottom:9px}.article h3{margin-top:28px}.article p,.article li{font-size:16px}.article li{margin-bottom:9px}.article .lead{font-size:18px;color:#38525a}.tip{padding:17px 20px;background:var(--light);border-left:4px solid var(--teal);border-radius:5px;margin:24px 0}.offer{background:#f9fbfb;border:1px dashed #9cbfba;padding:22px;border-radius:13px;margin-top:30px}.offer strong{display:block}.offer .button{margin-top:12px}.small{font-size:12px;color:var(--mute)}.footer{margin-top:60px;background:#102c34;color:#c0d1d2;padding:37px 0}.footer a{color:#c0d1d2;margin-right:17px;font-size:13px}.footer p{font-size:13px}input[type=search]{width:100%;padding:15px 18px;border:1px solid #cbdcda;border-radius:10px;font:inherit;background:white}.two{display:grid;grid-template-columns:1fr 1fr;gap:22px}.feature{background:white;border:1px solid var(--line);padding:28px;border-radius:15px}.breadcrumbs{font-size:13px;color:var(--mute)}@media(max-width:740px){.grid,.two{grid-template-columns:1fr}.bar{align-items:flex-start;flex-direction:column;gap:8px}nav{gap:12px}.section{padding:35px 0}.article{padding:23px;margin:20px auto}.hero{padding:48px 0}}