:root{--ink:#12333b;--deep:#0b3b46;--teal:#0e7580;--mint:#61c6b7;--lime:#d9f275;--cream:#f6f5ed;--white:#fff;--line:#d9e3df;--muted:#5a7176}*{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}a{color:inherit;text-decoration:none}.header{height:78px;display:flex;align-items:center;padding:0 max(24px,4vw);gap:38px;position:sticky;top:0;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);z-index:20;border-bottom:1px solid rgba(11,59,70,.08)}.brand{display:flex;align-items:center;gap:10px;margin-right:auto}.brand svg{width:40px;fill:none;stroke:var(--teal);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.brand span{display:flex;flex-direction:column;line-height:1.25}.brand b{font-size:19px;letter-spacing:.08em}.brand small{font-size:9px;letter-spacing:.08em;color:var(--muted)}nav{display:flex;gap:28px;font-size:13px;font-weight:700}.button{display:inline-flex;justify-content:center;align-items:center;gap:20px;background:var(--teal);color:#fff;border:0;border-radius:8px;padding:16px 24px;font:700 15px inherit;box-shadow:0 7px 18px rgba(14,117,128,.18);cursor:pointer;transition:.2s}.button:hover{transform:translateY(-2px);background:#095f68}.button-small{padding:10px 18px;font-size:12px}.hero{min-height:680px;padding:92px max(7vw,28px) 100px;display:grid;grid-template-columns:1.15fr .85fr;gap:8vw;align-items:center;background:linear-gradient(115deg,#f5f6ef 0 68%,#e3f1ed 68%);overflow:hidden}.eyebrow,.section-kicker{font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--teal);margin:0 0 18px;text-transform:uppercase}.hero h1{font-size:clamp(38px,5.2vw,72px);line-height:1.3;letter-spacing:-.04em;margin:0 0 26px;font-weight:900}.hero h1 em{font-style:normal;color:var(--teal);position:relative}.hero h1 em:after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:5px;background:var(--lime);z-index:-1}.lead{font-size:16px;max-width:690px;color:#405d63;margin-bottom:30px}.hero-actions{display:flex;align-items:center;gap:28px}.text-link{font-weight:700;font-size:14px;border-bottom:1px solid}.checks{display:flex;list-style:none;padding:0;margin:24px 0 0;gap:22px;font-size:12px;font-weight:700}.checks li:before{content:'✓';color:var(--teal);margin-right:6px}.hero-card{background:#fff;border-radius:20px;padding:28px 30px;box-shadow:0 30px 70px rgba(11,59,70,.15);transform:rotate(2deg);max-width:440px}.status{font:700 10px sans-serif;letter-spacing:.12em;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:16px}.status span{display:inline-block;width:8px;height:8px;border-radius:50%;background:#36c66d;margin-right:8px}.card-label{font-size:11px;color:var(--muted);margin:25px 0 3px}.hero-card h2{font-size:28px;line-height:1.4;margin:0}.circuit{display:flex;align-items:center;justify-content:center;margin:34px 0}.circuit span{width:54px;height:54px;border:3px solid var(--teal);border-radius:50%;display:grid;place-items:center;font-size:22px;font-weight:900}.circuit i{width:42px;height:3px;background:var(--teal)}.understand{background:#eff8f4;border-radius:10px;padding:14px;display:flex;align-items:center;gap:12px}.understand b{background:var(--mint);color:#fff;border-radius:50%;width:34px;height:34px;display:grid;place-items:center}.understand span{display:flex;flex-direction:column;font-size:12px;font-weight:700}.understand small{color:var(--teal)}.section{padding:100px max(7vw,28px)}.section h2{font-size:clamp(30px,4vw,48px);line-height:1.45;margin:0 0 46px;letter-spacing:-.03em}.pain{text-align:center}.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;text-align:left}.pain-grid article{background:var(--cream);padding:32px;border-radius:12px}.pain-grid span{font-size:12px;font-weight:900;color:var(--teal)}.pain-grid h3{font-size:19px}.pain-grid p,.section-head>p,.teacher p{font-size:14px;color:var(--muted)}.subjects{background:var(--deep);color:white}.section-head{display:grid;grid-template-columns:1fr .6fr;gap:60px;align-items:end}.section-head>p{color:#bad0d1;margin-bottom:46px}.subject-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.subject-grid article{background:#fff;color:var(--ink);padding:34px;border-radius:14px;position:relative}.subject-icon{position:absolute;right:24px;top:24px;font-weight:900;font-size:26px;color:#b7d7d3}.tag{display:inline-block;background:#e8f5f1;color:var(--teal);font-size:11px;font-weight:800;border-radius:30px;padding:3px 12px}.subject-grid h3{font-size:22px}.subject-grid ul,.pricing ul{padding:0;list-style:none}.subject-grid li,.pricing li{padding:7px 0;border-bottom:1px solid var(--line);font-size:14px}.subject-grid li:before,.pricing li:before{content:'✓';color:var(--teal);font-weight:900;margin-right:10px}.strength{text-align:center}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;text-align:left;max-width:1100px;margin:auto}.steps article{display:flex;gap:20px;padding:28px;border-right:1px solid var(--line)}.steps article:last-child{border:0}.steps b{font-size:50px;line-height:1;color:#d3e5e2}.steps small{font:700 9px sans-serif;letter-spacing:.14em;color:var(--teal)}.steps h3{font-size:24px;margin:4px 0}.steps p{font-size:13px;color:var(--muted)}.pricing{background:var(--cream);text-align:center}.price-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;max-width:950px;margin:auto;text-align:left;align-items:center}.price-grid article{background:#fff;padding:38px;border-radius:14px;border:1px solid var(--line);position:relative}.price-grid .featured{border:3px solid var(--teal);padding:44px 38px}.ribbon{position:absolute;top:-17px;left:28px;background:var(--lime);padding:5px 16px;border-radius:30px;font-size:12px;font-weight:900}.plan{color:var(--teal);font-weight:800;font-size:13px}.price-grid h3{font-size:22px}.price{display:flex;flex-direction:column;margin:20px 0}.price del{font-size:13px;color:var(--muted)}.price strong{font-size:44px;line-height:1.2;color:var(--deep)}.price small{font-size:13px}.price-grid .button{width:100%;margin-top:15px}.secondary{background:#fff;color:var(--teal);border:1px solid var(--teal);box-shadow:none}.price-note{font-size:12px;color:var(--muted);margin-top:24px}.teacher{display:grid;grid-template-columns:.65fr 1fr;align-items:center;gap:8vw}.teacher-mark{aspect-ratio:1;background:linear-gradient(145deg,var(--teal),var(--deep));border-radius:50%;display:grid;place-items:center;color:#fff;font-size:clamp(46px,8vw,90px);font-weight:900;line-height:.75;letter-spacing:-.1em;box-shadow:24px 24px 0 var(--lime)}.teacher-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.teacher-tags span{font-size:11px;font-weight:700;border:1px solid var(--line);border-radius:30px;padding:5px 13px}.faq{background:#f7faf9}.faq-list{max-width:920px;margin:auto}.faq details{border-top:1px solid var(--line);padding:20px 4px}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{font-weight:700;cursor:pointer;list-style:none;padding-right:30px;position:relative}.faq summary:before{content:'Q';color:var(--teal);margin-right:16px;font-weight:900}.faq summary:after{content:'＋';position:absolute;right:0}.faq details[open] summary:after{content:'−'}.faq details p{font-size:14px;color:var(--muted);padding-left:36px}.trial{background:var(--deep);color:#fff;display:grid;grid-template-columns:.8fr 1.1fr;gap:8vw;align-items:start}.light{color:var(--lime)}.trial-copy>p:not(.section-kicker){color:#c0d2d3}.trial-copy ul{list-style:none;padding:0}.trial-copy li{margin:10px 0}.trial-copy li:before{content:'✓';display:inline-grid;place-items:center;background:var(--mint);border-radius:50%;width:22px;height:22px;margin-right:10px;font-size:12px}.form{background:#fff;color:var(--ink);border-radius:14px;padding:36px}.form label{display:flex;flex-direction:column;font-size:13px;font-weight:700;margin-bottom:18px}.form label span{color:#d65b55;font-size:10px;margin-left:4px}.form input,.form select,.form textarea{margin-top:7px;border:1px solid #cbd9d6;border-radius:6px;padding:13px;font:400 14px inherit;background:#fff;width:100%}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form .consent{flex-direction:row;align-items:center;font-size:11px}.consent input{width:auto;margin:0 8px 0 0}.submit{width:100%}.form-note{text-align:center;color:var(--muted);font-size:10px}.hidden{display:none}footer{padding:38px max(7vw,28px);display:flex;align-items:center;border-top:1px solid var(--line)}footer p{margin-left:auto;font-size:10px;color:var(--muted)}.mobile{display:none}@media(max-width:820px){.header{height:66px;padding:0 18px}.header nav,.header>.button{display:none}.hero{grid-template-columns:1fr;padding:58px 22px 70px;background:linear-gradient(160deg,#f5f6ef 0 77%,#e3f1ed 77%);gap:55px}.hero h1{font-size:39px}.lead{font-size:14px}.hero-actions{align-items:stretch;flex-direction:column;gap:15px}.text-link{text-align:center;border:0}.checks{flex-wrap:wrap;gap:6px 15px}.hero-card{margin:auto;width:95%;padding:23px}.section{padding:72px 22px}.section h2{font-size:29px}.pain-grid,.subject-grid,.steps,.price-grid,.teacher,.trial,.section-head{grid-template-columns:1fr}.pain-grid{gap:12px}.section-head{gap:0}.section-head>p{margin-top:-24px}.steps article{border-right:0;border-bottom:1px solid var(--line);padding:24px 0}.price-grid .featured{padding:40px 25px}.price-grid article{padding:28px 25px}.teacher{gap:55px}.teacher-mark{width:70%;margin:auto}.form{padding:25px 20px}.form-row{grid-template-columns:1fr}.mobile{display:block}footer{align-items:flex-start;gap:20px;flex-direction:column}footer p{margin:0}}
