:root{--navy:#0b2341;--green:#155b47;--ink:#10233a;--soft:#f3f7f6;--line:#dbe4e2}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:'Noto Sans JP',sans-serif;color:var(--ink);background:#fff;line-height:1.8}img{max-width:100%;display:block}a{text-decoration:none;color:inherit}header{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 4vw;position:sticky;top:0;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);z-index:20;border-bottom:1px solid #edf1f0}.logo{display:flex;align-items:center;gap:10px}.logo img{width:54px;height:58px;object-fit:contain}.logo span{display:grid}.logo b{font-size:20px;color:var(--navy)}.logo small{font-size:10px}.menu{display:none;border:0;background:none;font-size:26px}nav{display:flex;gap:28px;align-items:center;font-size:13px;font-weight:700}.navbtn{background:var(--green);color:#fff;padding:11px 18px;border-radius:24px}.hero{min-height:720px;display:grid;grid-template-columns:42% 58%;align-items:center;background:linear-gradient(110deg,#fff 0,#f6faf9 55%,#eaf3f0 100%)}.hero-copy{padding:70px 4vw 70px 6vw}.tag,.kicker,.section-title span{font-size:11px;letter-spacing:.22em;font-weight:900;color:var(--green)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(34px,4vw,64px);line-height:1.45;letter-spacing:-.04em;color:var(--navy)}h1 em{font-style:normal;color:var(--green)}.lead{font-size:22px;font-weight:800;color:var(--green)}.hero-copy>p:not(.tag,.lead){max-width:620px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}.btn{display:inline-flex;justify-content:center;align-items:center;padding:14px 22px;border-radius:12px;font-weight:800}.primary{background:var(--navy);color:#fff}.green{background:var(--green);color:#fff}.outline{border:1px solid var(--navy);background:#fff}.hero-visual{height:100%;position:relative;overflow:hidden}.hero-visual img{width:100%;height:100%;object-fit:cover}.hero-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#f6faf9 0,transparent 24%)}.hero-visual span{position:absolute;right:6%;bottom:7%;z-index:2;background:rgba(255,255,255,.92);padding:12px 18px;border-radius:12px;font-weight:800;transform:rotate(-3deg)}.media-focus{padding:110px 5vw}.section-title{max-width:1180px;margin:0 auto 44px}.section-title h2,.about h2,.contact h2,.channels h2{font-family:'Noto Serif JP',serif;font-size:clamp(32px,4vw,52px);line-height:1.45;margin:8px 0 12px;color:var(--navy)}.focus-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:1fr 1fr;gap:28px}.youtube-card,.podcast-card{border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#fff;box-shadow:0 18px 55px rgba(14,48,66,.08)}.thumb{position:relative;height:330px}.thumb img{width:100%;height:100%;object-fit:cover}.thumb i{position:absolute;inset:0;margin:auto;width:84px;height:84px;border-radius:50%;background:rgba(255,255,255,.94);display:grid;place-items:center;color:#e62117;font-style:normal;font-size:32px;padding-left:5px}.card-body{padding:28px}.card-body>b{color:var(--green);font-size:14px}.card-body h3{font-size:28px;line-height:1.45}.textlink{font-weight:900;color:var(--navy)}.podcast-card{background:linear-gradient(145deg,#103f34,#09261f);color:#fff;padding:12px}.podcast-card .card-body h3{color:#fff}.podcast-card .card-body>b{color:#5ce2a9}.topics{display:grid;grid-template-columns:repeat(5,1fr);border-block:1px solid var(--line)}.topics article{padding:36px 24px;text-align:center;border-right:1px solid var(--line)}.topics span{color:var(--green);font-size:12px;font-weight:900}.topics h3{margin:8px 0 0;font-size:17px}.topics p{font-size:12px;color:#617079}.activities{padding:110px 5vw;background:var(--navy);color:#fff}.section-title.light h2{color:#fff}.section-title.light p{color:#c7d2db}.gallery{max-width:1180px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.gallery figure{margin:0;position:relative;border-radius:18px;overflow:hidden;height:300px}.gallery .wide{grid-column:span 2}.gallery img{width:100%;height:100%;object-fit:cover;transition:.35s}.gallery figure:hover img{transform:scale(1.04)}figcaption{position:absolute;left:20px;bottom:18px;background:rgba(255,255,255,.92);color:var(--navy);padding:9px 14px;border-radius:10px;font-weight:800}.about{padding:110px 7vw;display:grid;grid-template-columns:38% 62%;align-items:center;max-width:1250px;margin:auto}.about-char{background:var(--soft);border-radius:35px;min-height:590px;display:grid;place-items:end center;overflow:hidden}.about-char img{height:560px;object-fit:contain}.about>div:last-child{padding-left:9%}.aboutlead{font-size:19px;font-weight:800}.about ul{padding:0;list-style:none}.about li{padding:12px 0;border-bottom:1px solid var(--line)}.about li:before{content:'✓';color:var(--green);font-weight:900;margin-right:10px}.channels{padding:90px 5vw;background:var(--soft)}.channels h2{text-align:center}.channels>div{max-width:1050px;margin:35px auto 0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.channels a{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;font-weight:900}.channels span{display:block;font-size:12px;color:#617079;font-weight:600}.contact{padding:110px 7vw;display:grid;grid-template-columns:1fr 1fr;gap:8%;max-width:1250px;margin:auto}.contact form{background:var(--soft);padding:34px;border-radius:22px}.contact label{display:block;font-weight:800;font-size:13px;margin-bottom:16px}.contact input,.contact select,.contact textarea{width:100%;margin-top:7px;border:1px solid #cad7d3;border-radius:10px;padding:13px;background:#fff;font:inherit}.contact button{border:0;width:100%;font:inherit}footer{background:#061b2d;color:#fff;text-align:center;padding:55px 20px 28px}.footer-logo{display:flex;justify-content:center;align-items:center;gap:10px;margin-bottom:12px}.footer-logo img{width:55px;height:65px;object-fit:contain}.footer-logo b,.footer-logo span{display:block}.footer-logo span{font-size:11px;color:#a8bbc8}footer p{color:#c8d3da}footer small{color:#748b9b}
@media(max-width:900px){.menu{display:block}nav{display:none;position:absolute;top:78px;left:0;right:0;background:#fff;padding:24px;flex-direction:column;box-shadow:0 12px 30px rgba(0,0,0,.12)}nav.open{display:flex}.hero{grid-template-columns:1fr}.hero-copy{padding:70px 6vw 30px}.hero-visual{height:520px}.focus-grid,.about,.contact{grid-template-columns:1fr}.topics{grid-template-columns:repeat(2,1fr)}.gallery{grid-template-columns:1fr 1fr}.gallery .wide{grid-column:span 2}.about>div:last-child{padding:50px 0 0}.channels>div{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){header{padding:0 18px}.logo b{font-size:16px}.logo img{width:46px}.hero{min-height:auto}.hero-copy{padding:52px 22px 24px}.hero-visual{height:430px}.hero-visual span{font-size:12px}.actions{display:grid}.btn{width:100%}.media-focus,.activities,.channels{padding:74px 20px}.focus-grid{gap:20px}.thumb{height:240px}.topics{grid-template-columns:1fr 1fr}.topics article{padding:25px 10px}.gallery{grid-template-columns:1fr}.gallery .wide{grid-column:span 1}.gallery figure{height:260px}.about,.contact{padding:74px 22px}.about-char{min-height:430px}.about-char img{height:420px}.channels>div{grid-template-columns:1fr}.contact form{padding:24px 18px}}
.youtube-embed{position:relative;width:100%;aspect-ratio:16/9;background:#000;overflow:hidden}.youtube-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* YouTube埋め込みを直接操作できるようにする */
.youtube-embed,
.youtube-embed iframe {
  pointer-events: auto;
}
.youtube-embed iframe {
  position: relative;
  z-index: 2;
}

/* 歩けば学べる：ブランドストーリー */
.philosophy{padding:120px 5vw;background:linear-gradient(180deg,#f4f8f6 0%,#fff 72%);overflow:hidden}
.philosophy>.section-title{text-align:center;max-width:920px}
.learning-route{max-width:1240px;margin:55px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.learning-route:before{content:"";position:absolute;top:110px;left:11%;right:11%;border-top:2px dashed rgba(21,91,71,.3);z-index:0}
.learning-route article{position:relative;z-index:1;background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:0 18px 48px rgba(11,35,65,.07);transition:.35s}
.learning-route article:hover{transform:translateY(-8px);box-shadow:0 26px 65px rgba(11,35,65,.12)}
.learning-route article>strong{position:absolute;top:14px;left:14px;z-index:2;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:#fff;font-size:12px;box-shadow:0 7px 18px rgba(0,0,0,.2)}
.learning-route img{height:210px;width:100%;object-fit:cover}
.learning-route article:nth-child(2) img{object-position:center 38%}
.learning-route article>div{padding:23px}
.learning-route span{font-size:10px;letter-spacing:.2em;font-weight:900;color:var(--green)}
.learning-route h3{font-size:22px;margin:5px 0 7px;color:var(--navy)}
.learning-route p{font-size:13px;line-height:1.8;color:#52636e;margin:0}
.walk-message{max-width:920px;margin:56px auto 0;background:var(--navy);color:#fff;border-radius:28px;min-height:185px;display:flex;align-items:center;padding:22px 55px 0 230px;position:relative;box-shadow:0 24px 55px rgba(11,35,65,.17)}
.walk-message img{position:absolute;left:32px;bottom:0;height:220px;width:175px;object-fit:contain;object-position:bottom}
.walk-message p{font-size:18px;line-height:1.9;margin:0}.walk-message b{font-family:'Noto Serif JP',serif;font-size:25px}
.hero-copy:before{content:'歩くことは、考えること。';display:block;color:var(--green);font-family:'Noto Serif JP',serif;font-weight:700;font-size:15px;margin-bottom:14px}
.hero-visual span:before{content:'↗  ';color:var(--green)}
.media-focus{background:#fff}
.youtube-card{position:relative}.youtube-card:before{content:'街で見つけた「なぜ？」を解説';position:absolute;z-index:4;top:16px;left:16px;background:rgba(255,255,255,.94);color:var(--navy);padding:7px 12px;border-radius:999px;font-weight:800;font-size:11px;pointer-events:none}
.activities .gallery figure:after{content:'';position:absolute;inset:auto 0 0;height:45%;background:linear-gradient(transparent,rgba(2,13,25,.55));pointer-events:none}
.activities figcaption{z-index:2}
@media(max-width:1000px){.learning-route{grid-template-columns:repeat(2,1fr)}.learning-route:before{display:none}}
@media(max-width:600px){.philosophy{padding:76px 20px}.learning-route{grid-template-columns:1fr;gap:16px}.learning-route img{height:230px}.walk-message{padding:28px 24px 185px;min-height:auto;text-align:center}.walk-message img{height:190px;width:160px;left:50%;transform:translateX(-50%)}.walk-message p{font-size:15px}.walk-message b{font-size:20px}.youtube-card:before{font-size:9px}}

/* YouTube：関連画像からチャンネルを開くビジュアルカード */
.youtube-link-card{overflow:hidden}
.youtube-visual-link{display:block;position:relative;isolation:isolate}
.youtube-collage{position:relative;height:360px;background:#071a2d;overflow:hidden}
.youtube-collage:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,20,38,.12),rgba(5,20,38,.05) 45%,rgba(5,20,38,.72));z-index:2;transition:.35s}
.youtube-collage img{position:absolute;object-fit:cover;transition:transform .45s ease,filter .45s ease}
.yt-main{inset:0;width:72%;height:100%;object-position:center}
.yt-sub{right:0;width:31%;height:50%;border-left:4px solid #fff}
.yt-sub-one{top:0;border-bottom:2px solid #fff}
.yt-sub-two{bottom:0;border-top:2px solid #fff}
.yt-character{z-index:3;right:22%;bottom:-10px;width:150px;height:245px!important;object-fit:contain!important;filter:drop-shadow(0 16px 16px rgba(0,0,0,.3))}
.youtube-play{position:absolute;z-index:5;left:31%;top:50%;transform:translate(-50%,-50%);width:88px;height:88px;border-radius:50%;display:grid;place-items:center;padding-left:7px;background:rgba(255,255,255,.95);color:#e62117;font-size:34px;box-shadow:0 14px 35px rgba(0,0,0,.28);transition:.3s}
.youtube-label{position:absolute;z-index:5;right:22px;bottom:22px;background:#e62117;color:#fff;padding:10px 16px;border-radius:999px;font-size:13px;font-weight:900;box-shadow:0 8px 22px rgba(0,0,0,.24)}
.youtube-visual-link:hover .youtube-collage img{transform:scale(1.035);filter:saturate(1.06)}
.youtube-visual-link:hover .youtube-play{transform:translate(-50%,-50%) scale(1.1)}
.youtube-open-button{display:inline-flex;align-items:center;gap:8px;margin-top:12px;padding:12px 18px;border-radius:999px;background:#e62117;color:#fff;font-weight:900;font-size:14px;box-shadow:0 8px 20px rgba(230,33,23,.2);transition:.25s}
.youtube-open-button:hover{transform:translateY(-2px);box-shadow:0 12px 25px rgba(230,33,23,.28)}
@media(max-width:600px){.youtube-collage{height:300px}.yt-main{width:100%}.yt-sub{display:none}.yt-character{right:-5px;width:125px;height:205px!important}.youtube-play{left:42%;width:72px;height:72px;font-size:28px}.youtube-label{right:12px;bottom:12px;font-size:11px;padding:8px 12px}}

/* お問い合わせフォーム：同意チェック欄 */
.privacy-consent{display:flex!important;align-items:flex-start;gap:10px;font-weight:600!important;line-height:1.6}
.contact .privacy-consent input[type="checkbox"]{width:18px;height:18px;flex:0 0 18px;margin:4px 0 0;padding:0;accent-color:var(--green)}
.contact-note{margin-top:18px;padding:14px 16px;background:#eef5f2;border-left:4px solid var(--green);border-radius:8px;font-size:14px}
.form-help{font-size:12px;color:#68777f;margin:12px 0 0;line-height:1.7}