:root{--navy:#081828;--blue:#1584ca;--cyan:#55c9ea;--ink:#172737;--muted:#607382;--line:#dce6ed;--soft:#f4f8fb;--gold:#e9a73d;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Yu Gothic",sans-serif;color:var(--ink);line-height:1.85}a{color:inherit}.container{width:min(calc(100% - 40px),var(--max));margin:auto}.hero{overflow:hidden;color:#fff;background:radial-gradient(circle at 82% 22%,rgba(85,201,234,.24),transparent 28%),linear-gradient(135deg,#06131f,#0b2940 58%,#0c3e5a);padding-bottom:76px}.nav{display:flex;align-items:center;justify-content:space-between;padding:24px 0}.logo{display:flex;gap:10px;align-items:center;text-decoration:none;font-weight:900;letter-spacing:.08em}.logo b{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--cyan),var(--blue))}.nav>div{display:flex;gap:24px;align-items:center}.nav a{text-decoration:none;font-weight:700;font-size:.9rem}.navcta{background:#fff;color:var(--navy);padding:9px 15px;border-radius:999px}.heroGrid{display:grid;grid-template-columns:1.08fr .92fr;gap:54px;align-items:center;padding-top:56px}.eyebrow,.kicker{font-size:.76rem;font-weight:900;letter-spacing:.14em}.eyebrow{color:#bceafa}.kicker{color:var(--blue)}h1{font-size:clamp(2.8rem,6vw,5.2rem);line-height:1.02;margin:.7rem 0 1rem}h1 small{display:block;font-size:.34em;color:#b8d3e2;margin-bottom:.6rem}.lead{color:#d9e9f3;font-size:1.08rem}.buttons,.chips,.tech{display:flex;flex-wrap:wrap;gap:10px}.buttons{margin-top:24px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 21px;border-radius:999px;font-weight:900;text-decoration:none}.main{background:linear-gradient(135deg,#f0b549,var(--gold));color:#081828}.sub{border:1px solid rgba(255,255,255,.35);color:#fff}.chips{margin-top:20px}.chips span{border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:7px 11px;color:#cfe5f0;font-size:.8rem;font-weight:800}.visual{position:relative;min-height:480px}.phone{position:absolute;width:220px;height:440px;border-radius:36px;background:#111820;padding:10px;box-shadow:0 30px 70px rgba(0,0,0,.3)}.front{left:65px;top:0;transform:rotate(-4deg)}.back{right:8px;top:25px;transform:rotate(8deg);opacity:.88}.screen{height:100%;border-radius:28px;background:linear-gradient(#f9fcfe,#eaf3f8);padding:26px 15px;color:#173348}.phone-top{height:9px;width:68px;background:#dbe6ec;border-radius:4px;margin:auto auto 18px}.appcard{border-radius:18px;padding:20px;background:linear-gradient(135deg,#0f77b5,#51c4e3);color:#fff;min-height:145px}.appcard strong{display:block;font-size:1.35rem;line-height:1.15;margin-top:12px}.rows{display:grid;gap:10px;margin-top:17px}.rows i,.blocks i{background:#fff;border-radius:14px}.rows i{height:52px}.fakebtn{margin-top:14px;background:#0e3047;color:#fff;text-align:center;padding:11px;border-radius:999px;font-size:.72rem;font-weight:900}.chart{height:165px;background:#fff;border-radius:17px;padding:16px;display:flex;align-items:end;gap:7px}.chart i{flex:1;background:linear-gradient(#4fc8e9,#157abb);border-radius:6px 6px 3px 3px}.chart i:nth-child(1){height:38%}.chart i:nth-child(2){height:62%}.chart i:nth-child(3){height:48%}.chart i:nth-child(4){height:82%}.chart i:nth-child(5){height:70%}.blocks{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:14px}.blocks i{height:70px}.bread{padding:14px 0;color:#748493;font-size:.82rem}.bread a{text-decoration:none}section{padding:80px 0}.soft{background:var(--soft)}.head{max-width:850px;margin-bottom:36px}.head h2,.two h2{font-size:clamp(2rem,4vw,3rem);line-height:1.23;color:var(--navy);margin:.5rem 0 1rem}.head p,.two p{color:var(--muted)}.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.cards3 article,.box{border:1px solid var(--line);border-radius:23px;padding:28px;background:#fff}.cards3 b{display:grid;place-items:center;width:60px;height:54px;border-radius:15px;background:#eaf6fc;color:var(--blue)}.cards3 h3{color:var(--navy)}.cards3 p{color:var(--muted)}.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:42px;align-items:center}.align-top{align-items:start}.usecases{display:grid;gap:11px}.usecases>div{display:grid;grid-template-columns:55px 1fr;gap:13px;align-items:center;border:1px solid var(--line);border-radius:17px;background:#fff;padding:17px}.usecases b{color:#b7cad8;font-size:1.25rem}.usecases strong,.usecases small{display:block}.usecases small{color:var(--muted)}.darkbox,.cost,.cta{background:linear-gradient(135deg,#071827,#10415f);color:#fff;border-radius:28px;padding:34px}.darkbox h2,.cost h2,.cta h2{color:#fff}.darkbox p,.cost p,.cta p{color:#d6e6ee}.pale{color:#aee6f8}.check{list-style:none;padding:0;margin:16px 0;display:grid;gap:10px}.check li{padding-left:27px;position:relative}.check li:before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:900}.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:13px}.flow article{border:1px solid var(--line);border-radius:19px;background:#fff;padding:21px 17px}.flow b{color:var(--blue)}.flow h3{color:var(--navy);font-size:1.03rem}.flow p{color:var(--muted);font-size:.9rem}.tech{margin-top:20px}.tech span{background:#edf6fb;border:1px solid #d7eaf4;border-radius:999px;padding:8px 13px;color:#255c7a;font-weight:800;font-size:.87rem}.note{font-size:.84rem!important}.local{background:linear-gradient(180deg,#f7fbfd,#fff)}.faq details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:0 20px}.faq details+details{margin-top:12px}.faq summary{cursor:pointer;padding:20px 0;font-weight:900;color:var(--navy)}.faq p{margin:0 0 20px;color:#586c7c}.related{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.related a{text-decoration:none;border:1px solid var(--line);border-radius:18px;padding:20px}.related strong,.related small{display:block}.related small{color:var(--muted)}.ctaSec{padding-top:20px}.cta{padding:46px}.cta h2{font-size:clamp(2rem,4vw,3rem);margin:.5rem 0 10px}.foot{display:flex;justify-content:space-between;align-items:center;padding:32px 0 50px;color:#7b8a96}.darklogo{color:var(--navy)}@media(max-width:950px){.heroGrid,.two{grid-template-columns:1fr}.cards3{grid-template-columns:1fr}.flow{grid-template-columns:1fr 1fr}.related{grid-template-columns:1fr 1fr}.visual{max-width:500px;width:100%;margin:auto}}@media(max-width:650px){.container{width:min(calc(100% - 28px),var(--max))}.nav>div a:not(.navcta){display:none}.heroGrid{padding-top:36px}.visual{min-height:395px}.phone{width:185px;height:375px}.front{left:10px}.back{right:4px}.flow,.related{grid-template-columns:1fr}.cta{padding:30px 24px}.foot{align-items:flex-start;gap:18px;flex-direction:column}}
/* No.4 layout fix: prevent column overflow/overlap */
.two > *{min-width:0}
.align-top{align-items:start}
.cost{height:auto;min-height:0}
@media (max-width:950px){
  .align-top{grid-template-columns:1fr}
}