:root{--color-primary: #2e4b71;--color-accent: #b7282e;--color-bg: #f7f6f2;--color-text: #333333;--color-white: #ffffff;--color-overlay: rgba(0, 0, 0, .4);--font-serif: "Noto Serif JP", serif;--font-sans: "Noto Sans JP", sans-serif;--base-font-size: 18px;--line-height: 1.8;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 32px;--spacing-xl: 64px;--container-width: 1200px}*{box-sizing:border-box;margin:0;padding:0}html{font-size:100%;scroll-behavior:smooth;scroll-padding-top:100px}body{font-family:var(--font-sans);font-size:var(--base-font-size);line-height:var(--line-height);color:var(--color-text);background-color:var(--color-bg);padding-top:100px}h1,h2,h3{font-family:var(--font-serif);font-weight:700;line-height:1.4}a{color:var(--color-primary);text-decoration:none;transition:opacity .3s}a:hover{opacity:.8}.site-header{position:fixed;top:0;left:0;width:100%;height:100px;padding:0 var(--spacing-lg);background-color:#fffffff2;display:flex;justify-content:space-between;align-items:center;z-index:1000;box-shadow:0 2px 10px #0000000d}.logo{padding-left:0;height:100%;width:100px;display:flex;align-items:center;justify-content:center}.logo img{transform:rotate(90deg);width:60px;height:auto}.main-nav{visibility:hidden;opacity:0;position:absolute;top:100%;left:0;width:100%;background-color:var(--color-white);padding:var(--spacing-md);box-shadow:0 4px 6px #0000001a;transition:opacity .3s,visibility .3s}.main-nav.open{visibility:visible;opacity:1}.main-nav ul{display:flex;flex-direction:column;align-items:center;list-style:none;gap:var(--spacing-md)}@media(min-width:768px){.main-nav{display:block!important;visibility:visible!important;opacity:1!important;position:static;width:auto;padding:0;box-shadow:none;background-color:transparent}.main-nav ul{flex-direction:row;align-items:center;gap:var(--spacing-lg)}}#loader{position:fixed;top:0;left:0;width:100%;height:100%;background-color:var(--color-primary);z-index:9999;display:flex;align-items:center;justify-content:center;transition:opacity .8s ease-out,visibility .8s ease-out}#loader.hidden{opacity:0;visibility:hidden}.loader-content{position:relative;width:120px;height:120px;display:flex;align-items:center;justify-content:center}.loader-core{width:20px;height:20px;background-color:var(--color-accent);border-radius:50%;z-index:10;box-shadow:0 0 15px #b7282e99;animation:corePulse 1.5s infinite ease-in-out}.loader-ring{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);border-radius:50%;border:1px solid rgba(255,255,255,.4);opacity:0;animation:ringExpand 3s infinite cubic-bezier(.25,.46,.45,.94)}.loader-ring:nth-child(2){animation-delay:.5s}.loader-ring:nth-child(3){animation-delay:1s;border-color:#b7282e4d}.loader-ring:nth-child(4){animation-delay:1.5s}.loader-orbit{position:absolute;top:0;left:0;width:100%;height:100%;border-radius:50%;animation:orbitRotate 4s linear infinite}.loader-orbit:before{content:"";display:block;width:6px;height:6px;background-color:#d4af37;border-radius:50%;margin:0 auto;box-shadow:0 0 10px #d4af37cc}@keyframes corePulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(.8);opacity:.8}}@keyframes ringExpand{0%{width:20px;height:20px;opacity:.5;border-width:2px}to{width:140px;height:140px;opacity:0;border-width:0px}}@keyframes orbitRotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.main-nav ul li{opacity:0;transform:translateY(-10px);transition:opacity .3s ease,transform .3s ease}.main-nav ul li:nth-child(1){transition-delay:.55s}.main-nav ul li:nth-child(2){transition-delay:.5s}.main-nav ul li:nth-child(3){transition-delay:.45s}.main-nav ul li:nth-child(4){transition-delay:.4s}.main-nav ul li:nth-child(5){transition-delay:.35s}.main-nav ul li:nth-child(6){transition-delay:.3s}.main-nav ul li:nth-child(7){transition-delay:.25s}.main-nav ul li:nth-child(8){transition-delay:.2s}.main-nav ul li:nth-child(9){transition-delay:.15s}.main-nav ul li:nth-child(10){transition-delay:.1s}.main-nav ul li:nth-child(11){transition-delay:.05s}.main-nav ul li:nth-child(12){transition-delay:0s}.main-nav.open ul li{opacity:1;transform:translateY(0)}.main-nav.open ul li:nth-child(1){transition-delay:.1s}.main-nav.open ul li:nth-child(2){transition-delay:.15s}.main-nav.open ul li:nth-child(3){transition-delay:.2s}.main-nav.open ul li:nth-child(4){transition-delay:.25s}.main-nav.open ul li:nth-child(5){transition-delay:.3s}.main-nav.open ul li:nth-child(6){transition-delay:.35s}.main-nav.open ul li:nth-child(7){transition-delay:.4s}.main-nav.open ul li:nth-child(8){transition-delay:.45s}.main-nav.open ul li:nth-child(9){transition-delay:.5s}.main-nav.open ul li:nth-child(10){transition-delay:.55s}.main-nav.open ul li:nth-child(11){transition-delay:.6s}.main-nav.open ul li:nth-child(12){transition-delay:.65s}@media(min-width:768px){.main-nav ul li{opacity:1;transform:none;transition:none}}.main-nav a{color:var(--color-text);font-weight:500;position:relative}.main-nav a:after{content:"";position:absolute;bottom:-4px;left:0;width:0%;height:2px;background-color:var(--color-accent);transition:width .3s}.main-nav a:hover:after{width:100%}.menu-toggle{display:flex;flex-direction:column;gap:6px;background:none;border:none;cursor:pointer;padding:var(--spacing-sm);z-index:1001}@media(min-width:768px){.menu-toggle{display:none}}.bar{width:30px;height:3px;background-color:var(--color-primary);border-radius:2px;transition:transform .3s,opacity .3s}.menu-text{font-size:.7rem;font-weight:700;color:var(--color-primary)}section{padding:80px var(--spacing-md)}.container{max-width:var(--container-width);margin:0 auto}.section-title{text-align:center;font-size:2.5rem;margin-bottom:var(--spacing-xl);color:var(--color-primary);position:relative;display:block}.section-title:after{content:"";display:block;width:60px;height:4px;background-color:var(--color-accent);margin:var(--spacing-sm) auto 0}.section-title .subtitle{display:block;font-size:1.1rem;color:#7a8b9f;font-family:var(--font-serif);font-weight:500;margin-top:5px;letter-spacing:.05em;text-transform:uppercase}.card-content h3{font-family:var(--font-serif);color:var(--color-primary);margin-bottom:var(--spacing-sm);font-size:1.6rem;letter-spacing:.05em}ruby{display:inline-flex;flex-direction:column;align-items:center;vertical-align:bottom;line-height:1;margin:0 4px}rt{order:2;font-family:var(--font-serif);color:#2e4b71b3;font-size:.5em;font-weight:500;letter-spacing:.05em;margin-top:2px}.cta-button{display:inline-block;background-color:var(--color-accent);color:var(--color-white);padding:1.2rem 3rem;border-radius:50px;font-size:1.2rem;font-weight:700;letter-spacing:.05em;transition:transform .2s,background-color .2s;box-shadow:0 4px 15px #b7282e4d}.cta-button:hover{background-color:#a01f25;transform:translateY(-2px);opacity:1}.section-contact{background-color:var(--color-primary);color:var(--color-white);text-align:center}.section-contact .section-title{color:var(--color-white)}.section-contact p{margin-bottom:var(--spacing-md)}.page-header{position:relative;height:300px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--color-white);background-size:cover;background-position:center}.header-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#2e4b71b3}.page-header h1{position:relative;z-index:1;font-size:3rem;margin-bottom:var(--spacing-sm)}.page-header p{position:relative;z-index:1;font-family:var(--font-serif);font-style:italic;font-size:1.2rem}.site-footer{background-color:#1a2c42;color:#ffffffb3;text-align:center;padding:var(--spacing-lg) var(--spacing-md);font-size:.9rem}.form-placeholder{margin-top:35px}.social-links{display:flex;justify-content:center;gap:var(--spacing-lg);margin-bottom:var(--spacing-lg)}.social-icon{display:block;width:30px;height:30px;transition:transform .3s ease;opacity:.8}.social-icon:hover{transform:translateY(-3px);opacity:1}.social-icon img{width:100%;height:100%;object-fit:contain}.hero{position:relative;height:100vh;min-height:600px;display:flex;align-items:center;justify-content:center;color:var(--color-white);overflow:hidden}.hero-slides{position:absolute;top:0;left:0;width:100%;height:100%;z-index:-2}.slide{position:absolute;top:0;left:0;width:100%;height:100%;background-size:cover;background-position:center;opacity:0;transition:opacity 1.5s ease-in-out}.slide.active{opacity:1}.section-message .message-text{font-family:Zen Old Mincho,serif;font-size:1.5rem;font-weight:900;letter-spacing:.1em;line-height:2;color:var(--color-primary)}.hero-bg-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(#2e4b7166,#0009);z-index:-1}.hero-content{text-align:center;padding:var(--spacing-lg);max-width:800px}.hero h1{font-size:clamp(2.5rem,5vw,5rem);margin-bottom:24px;text-shadow:2px 2px 4px rgba(0,0,0,.5);letter-spacing:.1em;line-height:1.4}.hero p{font-size:clamp(1.2rem,3vw,1.5rem);margin-bottom:var(--spacing-xl);font-weight:500;letter-spacing:.08em;line-height:1.8}.section-message{padding:var(--spacing-xl) var(--spacing-md);text-align:center;background-color:var(--color-bg)}.section-message p{font-size:1.2rem;font-weight:500;line-height:2;color:var(--color-primary);max-width:800px;margin:0 auto}.section-concept{text-align:center;background-color:#fff9}.section-atmosphere{padding:var(--spacing-xl) 0;background-color:#fcfcfc}.atmosphere-content{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-lg);max-width:1000px;margin:0 auto}.atmosphere-image{width:100%;max-width:500px;border-radius:12px;overflow:hidden;box-shadow:0 4px 15px #0000001a}.atmosphere-image img{width:100%;height:auto;display:block;transition:transform .5s}.atmosphere-image:hover img{transform:scale(1.05)}.atmosphere-text{flex:1;text-align:center;padding:var(--spacing-md)}.atmosphere-text p{line-height:1.8;margin-bottom:var(--spacing-lg);font-size:1.1rem;color:#555;text-align:left}@media(min-width:768px){.atmosphere-content{flex-direction:row;align-items:center;text-align:left}.atmosphere-text{text-align:left;padding-left:var(--spacing-lg)}}.class-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--spacing-lg);padding:var(--spacing-md)}.class-card{background-color:var(--color-white);border-radius:12px;overflow:hidden;box-shadow:0 4px 20px #0000000d;transition:transform .3s}.class-card:hover{transform:translateY(-5px)}.card-image{height:200px;overflow:hidden}.card-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s}.class-card:hover .card-image img{transform:scale(1.05)}.card-content{padding:var(--spacing-md);text-align:center}.card-content h3{color:var(--color-primary);margin-bottom:var(--spacing-sm);font-size:1.5rem}.schedule-list{background-color:var(--color-white);border-radius:12px;padding:var(--spacing-lg);box-shadow:0 4px 20px #0000000d}.schedule-item{display:flex;flex-direction:column;padding:var(--spacing-md) 0;border-bottom:1px solid #eee}.schedule-item:last-child{border-bottom:none}@media(min-width:768px){.schedule-item{flex-direction:row;align-items:center;gap:var(--spacing-lg)}}.schedule-date{font-family:var(--font-serif);font-weight:700;font-size:1.2rem;color:var(--color-accent);min-width:120px}.schedule-content h3{font-size:1.2rem;margin-bottom:4px}.schedule-content p{color:#666;font-size:.9rem}.section-furusato{text-align:center;background-color:#f9f4ef;padding:var(--spacing-xl) 0;border-top:1px solid #ddd;border-bottom:1px solid #ddd}.section-furusato .section-title{color:var(--color-primary);margin-bottom:var(--spacing-md)}.furusato-content p{line-height:1.8;margin-bottom:var(--spacing-lg);color:var(--color-text);font-weight:500}.section-furusato .cta-button{background-color:#bf0000;color:#fff;padding:1rem 2rem;font-size:1.1rem;box-shadow:0 4px 10px #bf00004d}.section-furusato .cta-button:hover{background-color:#a00000;transform:translateY(-2px)}