:root{--green:#587865;--green-dark:#405d4d;--sage:#dfe9e1;--paper:#f8f5ed;--paper-alt:#f1f3ea;--ink:#26302b;--muted:#5e6963;--line:#d9dacd;--white:#fff}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:"Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;color:var(--ink);background:var(--paper);line-height:1.8;-webkit-font-smoothing:antialiased}img{display:block;max-width:100%}a{color:inherit;text-decoration:none}ul,ol{list-style:none}button,input,textarea,select{font:inherit}.wrap{width:min(1180px,100%);margin:auto;padding:0 28px}section{padding:96px 0}h1,h2,h3,h4{line-height:1.45}p{color:var(--muted)}
header{position:sticky;top:0;z-index:50;background:rgba(248,245,237,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.header-inner{width:min(1240px,100%);margin:auto;padding:15px 28px;display:flex;align-items:center;justify-content:space-between;gap:28px}.logo{font-size:25px;font-weight:900;letter-spacing:-.04em;color:var(--green-dark)}.logo span{color:var(--green)}nav.main-nav ul{display:flex;align-items:center;gap:25px;font-size:13px;font-weight:700;color:#45564f}nav.main-nav a:hover{color:var(--green)}.header-right{display:flex;align-items:center;gap:17px}.menu-btn{display:none;border:0;background:none;color:var(--green-dark);font-size:26px;cursor:pointer}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border:1px solid transparent;border-radius:12px;font-weight:800;font-size:14px;cursor:pointer}.btn-primary{background:var(--green);color:#fff}.btn-outline{background:transparent;border-color:#aebbb3;color:var(--green-dark)}.btn:hover{transform:translateY(-1px)}
.sec-title{text-align:center;font-size:clamp(29px,4vw,45px);letter-spacing:-.035em}.sec-sub{max-width:720px;margin:18px auto 48px;text-align:center;font-size:15px;line-height:2}.badge{display:inline-block;padding:5px 12px;border-radius:99px;background:var(--sage);color:var(--green-dark);font-size:11px;font-weight:800}
.features-grid,.gallery-grid,.price-grid,.voice-grid,.teacher-grid,.areas-grid{display:grid;gap:22px}.features-grid{grid-template-columns:repeat(4,1fr)}.gallery-grid,.price-grid,.voice-grid,.teacher-grid{grid-template-columns:repeat(3,1fr)}.areas-grid{grid-template-columns:repeat(4,1fr)}.feature-card,.gallery-card,.price-card,.voice-card,.teacher-card,.area-card,.flow-step,.app-feature-card{background:#fcfaf4;border:1px solid var(--line);border-radius:18px;padding:27px}.feature-card h3,.price-card h3{margin-bottom:9px;font-size:18px}.feature-card p,.area-card p{font-size:13px}.gallery-card{padding:0;overflow:hidden}.gallery-card img{width:100%;height:245px;object-fit:cover}.gallery-caption{padding:17px;text-align:center;font-weight:700;color:var(--ink)}.area-pref{display:inline-block;color:var(--green-dark);font-weight:800;margin-bottom:10px}.area-cities{display:flex;flex-wrap:wrap;gap:6px}.area-cities span{padding:4px 9px;border-radius:99px;background:var(--sage);font-size:11px}.areas-note{text-align:center;margin-top:24px;font-size:11px}
.flow-steps{display:grid;gap:13px;margin:auto}.flow-step{display:flex;align-items:flex-start;gap:16px}.flow-num{display:grid;place-items:center;flex:0 0 36px;height:36px;border-radius:50%;background:var(--green);color:#fff;font-weight:800}.flow-step h3{font-size:16px}.flow-step p{font-size:12px}.legal-hero{background:var(--paper-alt)}.legal-content{max-width:900px;margin:auto}.legal-content h2{margin:34px 0 12px}.legal-content p,.legal-content li{font-size:13px}
.faq-list{max-width:900px;margin:auto}.faq-item{border-top:1px solid var(--line);padding:22px 0}.faq-q{font-weight:800}.faq-a{margin-top:10px;font-size:13px}.contact-form{max-width:760px;margin:auto}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:7px;font-size:13px;font-weight:700}.form-group input,.form-group textarea,.form-group select{width:100%;padding:13px;border:1px solid var(--line);border-radius:10px;background:#fff}.form-group textarea{min-height:140px}
.contact-section{background:var(--paper-alt);text-align:center}.fixed-cta{position:fixed;right:18px;bottom:18px;z-index:40;background:var(--green);color:#fff}
footer{background:#0e211b;color:#fff;padding:70px 0 30px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:45px}.footer-grid h4{margin-bottom:14px}.footer-grid li{margin:7px 0}.footer-grid a,.tagline{color:#b8cbc4;font-size:12px}.footer-bottom{display:flex;justify-content:space-between;margin-top:45px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);color:#789088;font-size:10px}
@media(max-width:900px){nav.main-nav{position:fixed;inset:64px 0 0;background:var(--paper);padding:25px;transform:translateY(-120%);transition:.2s;overflow:auto}nav.main-nav.open{transform:translateY(0)}nav.main-nav ul{display:grid;gap:0;font-size:17px}nav.main-nav li{padding:14px 0;border-bottom:1px solid var(--line)}.menu-btn{display:block}.header-right>a:not([href="/app/"]){display:none}.features-grid,.areas-grid{grid-template-columns:1fr 1fr}.gallery-grid,.price-grid,.voice-grid,.teacher-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.wrap{padding:0 20px}section{padding:70px 0}.features-grid,.areas-grid,.gallery-grid,.price-grid,.voice-grid,.teacher-grid{grid-template-columns:1fr!important}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.fixed-cta{left:15px;right:15px;text-align:center}.header-inner{padding:14px 20px}}