:root{--blue:#087fda;--blue-dark:#075cab;--teal:#00b795;--ink:#152335;--muted:#617082;--line:#dfe6ed;--pale:#eef8ff;--gray:#f5f7f9;--white:#fff;--shadow:0 18px 45px rgba(21,35,53,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:76px}body{margin:0;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;line-height:1.7;background:#fff}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}.container{width:min(1120px,calc(100% - 40px));margin-inline:auto}.narrow{width:min(820px,100%);text-align:center}.section{padding:96px 0}.site-header{position:fixed;inset:0 0 auto;z-index:50;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.header-inner{height:72px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:linear-gradient(145deg,var(--blue),var(--blue-dark));font-size:19px}.site-nav{display:flex;align-items:center;gap:26px;margin-left:auto;color:#526274;font-size:14px;font-weight:650}.site-nav a:hover{color:var(--blue)}.menu-button{display:none;border:0;background:none;padding:8px}.menu-button span:not(.sr-only){display:block;width:24px;height:2px;margin:5px;background:var(--ink)}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 24px;border:1px solid transparent;border-radius:9px;cursor:pointer;font-weight:750;transition:.2s ease}.button:hover{transform:translateY(-2px)}.button-primary{background:var(--blue);color:#fff;box-shadow:0 8px 22px rgba(8,127,218,.22)}.button-primary:hover{background:var(--blue-dark)}.button-outline,.button-secondary{border-color:#bcc9d5;background:#fff;color:var(--ink)}.button-secondary{width:100%;background:#e9eef3}.button-white{background:#fff;color:var(--blue-dark)}.hero{padding-top:150px;background:linear-gradient(180deg,#eaf7ff 0,#fff 74%)}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:66px;align-items:center}.eyebrow{margin:0 0 12px;color:var(--blue);font-size:13px;font-weight:850;letter-spacing:.14em}.eyebrow-light{color:#8ddaff}.hero h1{margin:0;font-size:clamp(42px,5.1vw,67px);line-height:1.16;letter-spacing:-.04em}.hero h1 span{color:var(--blue)}.lead{font-size:19px;color:var(--muted);margin:24px 0 0}.button-row{display:flex;gap:13px;margin:32px 0}.problem-box{padding:21px 24px;border:1px solid #b7dcf6;border-radius:12px;background:rgba(238,248,255,.8);font-size:14px}.problem-box ul{margin:8px 0 0;padding-left:20px;color:#536375}.hero-visual{position:relative}.landscape{position:relative;aspect-ratio:1.12;overflow:hidden;border-radius:23px;background:linear-gradient(#bee9ff 0 52%,#86bf74 52% 100%);box-shadow:var(--shadow)}.mountain{position:absolute;bottom:45%;width:65%;height:45%;background:#76a976;clip-path:polygon(50% 0,100% 100%,0 100%)}.mountain-one{left:-12%}.mountain-two{right:-20%;background:#639963}.station{position:absolute;left:10%;bottom:30%;padding:20px 18px 7px;background:#f6eedc;border-top:10px solid #34485b;font-weight:800}.track{position:absolute;left:-8%;width:116%;height:13px;border-top:4px solid #3e4852;border-bottom:4px solid #3e4852;transform:rotate(-5deg)}.track-one{bottom:23%}.track-two{bottom:13%}.model-train{position:absolute;display:flex;left:35%;bottom:25%;filter:drop-shadow(0 8px 6px rgba(0,0,0,.25));animation:train 7s ease-in-out infinite}.model-train span{width:78px;height:35px;margin-right:3px;border-radius:5px 5px 2px 2px;background:linear-gradient(#f2f5f7 0 35%,#1764a6 35% 75%,#eceff1 75%);border:2px solid #31485b}.model-train span:first-child{border-radius:18px 5px 2px 2px}.visual-note{position:absolute;left:-24px;bottom:-28px;width:260px;padding:16px 18px;border-radius:12px;background:#fff;box-shadow:var(--shadow)}.visual-note span{display:block;margin-top:3px;color:var(--muted);font-size:12px}@keyframes train{0%,100%{transform:translateX(-10px)}50%{transform:translateX(35px)}}.section-dark{background:#142231;color:#fff}.section-dark h2,.cta h2{margin:0;font-size:clamp(32px,4vw,45px);line-height:1.3}.section-intro{color:#bdc9d5;font-size:18px}.route-board{display:grid;grid-template-columns:1fr 80px 1fr 80px 1fr;align-items:center;margin-top:46px;padding:28px;border:1px solid #34485c;border-radius:16px;background:#0d1925}.route-board div{display:grid;gap:4px}.route-board span{color:#78d9c3;font-size:24px;font-weight:850}.route-board small{color:#91a1b0}.route-board i{height:2px;background:linear-gradient(90deg,var(--teal),#527187);position:relative}.route-board i:after{content:"";position:absolute;right:0;top:-4px;border-left:8px solid #527187;border-block:5px solid transparent}.section-heading{text-align:center;max-width:760px;margin:0 auto 50px}.section-heading.align-left{text-align:left;margin-left:0}.section-heading h2{font-size:clamp(31px,4vw,44px);line-height:1.25;margin:0 0 12px}.section-heading>p:last-child{color:var(--muted);font-size:18px}.card-grid{display:grid;gap:24px}.service-grid{grid-template-columns:repeat(3,1fr)}.card{padding:30px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 4px 18px rgba(25,48,69,.04)}.card:hover{border-color:#acd7f5;box-shadow:var(--shadow)}.card .icon{display:grid;place-items:center;width:50px;height:50px;margin-bottom:20px;border-radius:12px;background:var(--pale);font-size:24px}.card h3{margin:0 0 10px;font-size:20px}.card p{color:var(--muted);margin:0}.section-tint{background:var(--pale)}.value-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:74px;align-items:center}.benefit-list{list-style:none;margin:0;padding:0;display:grid;gap:25px}.benefit-list li{display:flex;gap:18px}.benefit-list li>span{flex:0 0 43px;height:43px;display:grid;place-items:center;border-radius:10px;background:var(--blue);color:#fff;font-weight:800}.benefit-list h3{margin:0 0 3px;font-size:19px}.benefit-list p{margin:0;color:var(--muted)}.impact-panel{padding:42px;border-radius:22px;background:linear-gradient(145deg,var(--blue-dark),#074176);color:#fff;box-shadow:var(--shadow)}.impact-panel>strong{display:block;font-size:25px;line-height:1.35}.impact-panel b{font-size:62px;color:#fff}.impact-panel>p:not(.eyebrow){color:#cde8ff}.impact-math{display:flex;justify-content:space-between;padding-top:20px;margin-top:24px;border-top:1px solid rgba(255,255,255,.3)}.plan-grid{grid-template-columns:repeat(3,1fr);align-items:stretch}.plan{display:flex;flex-direction:column}.plan-label,.popular{font-size:13px;font-weight:800;color:var(--blue)!important}.plan h3{font-size:25px}.plan .duration{font-size:14px}.plan>strong{font-size:31px;margin:12px 0}.plan ul{padding-left:20px;color:var(--muted);flex:1}.featured{border:2px solid var(--blue);background:#f2faff;transform:translateY(-10px)}.popular{display:inline-block}.plan-note{text-align:center;color:var(--muted);font-size:13px;margin-top:30px}.section-gray{background:var(--gray)}.operation-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.operation-card{padding:27px;border-left:4px solid var(--teal);background:#fff;border-radius:0 12px 12px 0;box-shadow:0 7px 22px rgba(25,48,69,.06)}.operation-card span{color:var(--blue);font-size:19px;font-weight:850}.operation-card h3{margin:5px 0}.operation-card p{margin:0;color:var(--muted)}.control-box{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:30px;padding:34px 38px;border-radius:15px;background:#15283b;color:#fff}.control-box h3{margin-top:0}.control-box ul{padding-left:20px;color:#c6d1dc}.process-list{display:grid;grid-template-columns:repeat(4,1fr);list-style:none;padding:0;margin:0}.process-list li{position:relative;text-align:center;padding:0 16px}.process-list li:not(:last-child):after{content:"→";position:absolute;right:-8px;top:18px;color:#9aaaba;font-size:24px}.process-list span{display:grid;place-items:center;width:58px;height:58px;margin:0 auto 15px;border-radius:50%;background:var(--blue);color:#fff;font-weight:850}.process-list h3{margin:0}.process-list p{margin:4px 0;color:var(--muted);font-size:14px}.cta{text-align:center;background:linear-gradient(130deg,#087fda,#0752a1);color:#fff}.cta p:not(.eyebrow){color:#d8eeff;font-size:18px}.site-footer{padding:50px 0 24px;background:#101b28;color:#9babb9}.footer-inner{display:flex;justify-content:space-between;gap:30px}.footer-inner strong{color:#fff}.footer-inner p{margin:5px 0}.footer-inner nav{display:flex;gap:22px;align-items:start}.footer-inner button{padding:0;color:inherit;border:0;background:none;cursor:pointer}.footer-inner a:hover,.footer-inner button:hover{color:#fff}.copyright{margin-top:34px;padding-top:20px;border-top:1px solid #263646;font-size:13px}.contact-dialog{width:min(520px,calc(100% - 30px));padding:38px;border:0;border-radius:18px;box-shadow:0 30px 80px rgba(0,0,0,.3)}.contact-dialog::backdrop{background:rgba(5,15,25,.65);backdrop-filter:blur(3px)}.dialog-close{position:absolute;top:12px;right:15px;border:0;background:none;font-size:30px;cursor:pointer}.contact-dialog h2{margin-top:0}.contact-placeholder{display:grid;gap:6px;margin:22px 0;padding:18px;background:var(--gray);border-radius:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.model-train{animation:none}}
@media (max-width:900px){.header-cta{margin-left:auto}.menu-button{display:block;order:3}.site-nav{position:fixed;display:none;inset:72px 0 auto;padding:26px 20px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.site-nav.open{display:grid}.hero-grid,.value-grid{grid-template-columns:1fr}.hero-visual{margin-top:20px}.service-grid,.plan-grid,.operation-grid{grid-template-columns:repeat(2,1fr)}.featured{transform:none}.footer-inner{display:grid}.footer-inner nav{flex-wrap:wrap}.route-board{grid-template-columns:1fr 35px 1fr 35px 1fr}.brand{font-size:14px}}
@media (max-width:640px){.container{width:min(100% - 28px,1120px)}.section{padding:70px 0}.header-inner{gap:10px}.brand span:last-child{max-width:190px;line-height:1.25}.header-cta{display:none}.hero{padding-top:115px}.hero h1{font-size:39px}.lead{font-size:17px}.button-row{display:grid}.visual-note{left:10px;bottom:-38px}.experience{padding-top:95px}.route-board{grid-template-columns:1fr;padding:18px}.route-board i{width:2px;height:24px;margin:auto;background:var(--teal)}.route-board i:after{display:none}.service-grid,.plan-grid,.operation-grid,.control-box{grid-template-columns:1fr}.impact-panel b{font-size:52px}.process-list{grid-template-columns:1fr 1fr;gap:30px 0}.process-list li:after{display:none}.footer-inner nav{display:grid}.site-footer{text-align:center}.footer-inner nav{justify-content:center}.contact-dialog{padding:32px 24px}}

/* Static media and responsive overflow fixes */
body{overflow-x:hidden}.hero-photo{display:block;width:100%;aspect-ratio:1.12;object-fit:cover;border-radius:23px;box-shadow:var(--shadow)}.event-video{display:block;width:min(760px,100%);margin:48px auto 0;border-radius:16px;background:#081019;box-shadow:0 22px 55px rgba(0,0,0,.32)}.video-caption{margin:10px 0 0!important;color:#91a1b0!important;font-size:13px!important}.gallery-section{background:#fff}.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.photo-grid figure{margin:0;overflow:hidden;border-radius:14px;background:#fff;box-shadow:var(--shadow)}.photo-grid img{display:block;width:100%;height:270px;object-fit:cover}.photo-grid figcaption{padding:14px 16px;color:var(--muted);font-size:14px;font-weight:700}
@media (max-width:900px){.photo-grid{grid-template-columns:1fr 1fr}.photo-grid figure:last-child{grid-column:1/-1}.photo-grid figure:last-child img{height:340px}}
@media (max-width:640px){.header-inner{justify-content:space-between}.brand{width:calc(100% - 48px);min-width:0;white-space:normal;font-size:12px}.brand span:last-child{display:block;max-width:none;overflow-wrap:anywhere}.brand-mark{flex:0 0 38px}.menu-button{display:block!important;flex:0 0 40px;margin-left:0}.hero-copy{min-width:0;width:100%}.hero h1,.hero h1 span,.lead{max-width:100%;overflow-wrap:anywhere;word-break:break-all}.photo-grid{grid-template-columns:1fr}.photo-grid figure:last-child{grid-column:auto}.photo-grid img,.photo-grid figure:last-child img{height:230px}}

/* Three model-train example videos */
.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:48px;text-align:left}.video-item{margin:0;overflow:hidden;border:1px solid #34485c;border-radius:14px;background:#0d1925}.video-grid .event-video{display:block;width:100%;aspect-ratio:16/9;margin:0;object-fit:cover;border-radius:0;box-shadow:none;background:#081019}.video-item figcaption{display:grid;gap:2px;padding:14px 15px}.video-item figcaption strong{color:#fff;font-size:15px}.video-item figcaption span{color:#91a1b0;font-size:12px}
@media (max-width:900px){.video-grid{grid-template-columns:1fr}.video-item{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(180px,.8fr);align-items:center}}
@media (max-width:640px){.video-item{display:block}}