:root{color:#17354a;background:#f6f8fa;font-family:Noto Sans JP,Hiragino Kaku Gothic ProN,Meiryo,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0}a{color:inherit}header{z-index:2;background:#fff;border-bottom:1px solid #dce6ec;position:sticky;top:0}.bar{justify-content:space-between;align-items:center;gap:20px;max-width:1120px;margin:auto;padding:19px 26px;display:flex}.brand{letter-spacing:.04em;font-size:1.3rem;font-weight:800;text-decoration:none}.brand small{color:#668294;letter-spacing:.14em;margin-top:3px;font-size:.68rem;font-weight:500;display:block}nav{gap:26px;font-size:.88rem;font-weight:700;display:flex}nav a{text-decoration:none}a:hover{color:#dc6b3a}.hero{background:#e8f0f4;overflow:hidden}.hero-inner{grid-template-columns:1fr 1fr;align-items:center;gap:30px;max-width:1120px;min-height:520px;margin:auto;padding:68px 26px;display:grid}.eyebrow{letter-spacing:.14em;color:#277695;font-size:.82rem;font-weight:800}.hero h1{letter-spacing:.05em;margin:22px 0;font-size:clamp(2.35rem,5vw,4.25rem);line-height:1.35}.hero p{color:#415d6d;max-width:34em;line-height:2}.hero img{aspect-ratio:1.18;object-fit:cover;border-radius:8px 70px;width:100%;box-shadow:24px 24px #cbdde5}.section{max-width:1120px;margin:auto;padding:86px 26px}.section h2{letter-spacing:.04em;margin:0 0 14px;font-size:2rem}.lead{color:#587181;margin:0 0 35px;line-height:1.9}.grid{grid-template-columns:repeat(3,1fr);gap:18px;display:grid}.grid article{background:#fff;border:1px solid #dce6ec;border-radius:8px;min-height:210px;padding:30px}.grid span{color:#db7147;letter-spacing:.1em;font-weight:800}.grid h3{margin:16px 0 10px;font-size:1.2rem}.grid p{color:#5b7180;margin:0;line-height:1.8}.about{color:#fff;background:#173f58}.about-inner{grid-template-columns:1fr 1.3fr;gap:60px;display:grid}.about .eyebrow{color:#83c3d9}.about p{color:#d9e8ef;margin:0;line-height:2}.about dl{grid-template-columns:100px 1fr;gap:12px;margin-top:26px;line-height:1.7;display:grid}.about dt{color:#a9cbd9}.about dd{margin:0}.contact{max-width:760px}.form{background:#fff;border:1px solid #dce6ec;border-radius:8px;padding:32px}.form label{margin-bottom:22px;font-weight:700;display:block}.form label span{color:#b45031;margin-left:6px;font-size:.78rem}.form input,.form textarea{width:100%;font:inherit;color:#17354a;background:#fff;border:1px solid #bccbd3;border-radius:5px;margin-top:9px;padding:12px;font-size:1rem;display:block}.form input:focus,.form textarea:focus{outline-offset:1px;outline:2px solid #277695}.form button{color:#fff;font:inherit;cursor:pointer;background:#173f58;border:0;border-radius:5px;padding:15px 42px;font-weight:700}.form button:disabled{opacity:.6}.form-note{color:#587181;font-size:.88rem;line-height:1.6}.form-status{min-height:1.5em;font-weight:700}.trap{width:1px;height:1px;position:absolute;left:-9999px;overflow:hidden}.phone{margin-top:24px}.phone a{font-weight:700}.inbox article{background:#fff;border:1px solid #dce6ec;margin:18px 0;padding:22px}.inbox .message{white-space:pre-wrap;line-height:1.7}footer{color:#d3e0e7;text-align:center;background:#102e41;padding:32px 26px;font-size:.82rem}footer strong,footer span,footer small{margin:4px;display:block}footer strong{color:#fff;font-size:1rem}@media (max-width:720px){.bar{flex-direction:column;align-items:flex-start;padding:15px 20px}nav{gap:16px;font-size:.78rem}.hero-inner{grid-template-columns:1fr;min-height:0;padding:56px 24px 70px}.hero h1{font-size:2.45rem}.hero img{aspect-ratio:1.45;box-shadow:12px 12px #cbdde5}.section{padding:64px 24px}.grid,.about-inner{grid-template-columns:1fr;gap:15px}.about-inner{gap:20px}.grid article{min-height:0}.form{padding:22px}.about dl{grid-template-columns:90px 1fr}}.intro-player{background:#173f58;border-radius:12px;max-width:960px;margin:auto;position:relative;overflow:hidden;box-shadow:0 22px 50px #12344829}.intro-player video{aspect-ratio:16/9;width:100%;display:block}.intro-brand{text-align:center;color:#fff;letter-spacing:.04em;text-shadow:0 2px 7px #00000073;pointer-events:none;padding:0 10px;font-size:clamp(1.2rem,4vw,3.8rem);font-weight:800;position:absolute;top:39%;left:0;right:0}.intro .lead{max-width:960px}.service-section{background:linear-gradient(#edf5f8 0%,#f8fafb 100%);border-top:1px solid #e1e9ed;border-bottom:1px solid #e1e9ed}.service-section h2{color:#173f58;font-size:clamp(2rem,3.6vw,2.6rem)}.service-grid{gap:22px}.service-grid article{border:1px solid #d7e4e9;border-radius:15px;min-height:0;padding:0;transition:transform .2s,box-shadow .2s;overflow:hidden;box-shadow:0 14px 32px #1234481a}.service-grid article:hover{transform:translateY(-4px);box-shadow:0 20px 40px #12344826}.service-visual{aspect-ratio:1.45;background:#dce9ed;position:relative;overflow:hidden}.service-visual img{object-fit:cover;width:100%;height:100%;display:block}.service-visual .service-number{color:#cf6338;letter-spacing:.06em;background:#fff;border-radius:10px;place-items:center;min-width:55px;height:55px;padding:0 8px;font-size:1.15rem;font-weight:800;display:grid;position:absolute;top:18px;left:18px;box-shadow:0 5px 16px #12344824}.service-copy{padding:27px 28px 34px}.service-copy h3{color:#173f58;margin:0 0 12px;font-size:1.35rem}.service-copy p{font-size:.98rem;line-height:1.85}@media (max-width:720px){.service-grid{gap:24px}.service-visual{aspect-ratio:1.75}.service-copy{padding:23px 24px 28px}}@media (prefers-reduced-motion:reduce){.service-grid article{transition:none}.service-grid article:hover{transform:none}}