:root{--bg-color: #F5F5F7;--surface-color: #FFFFFF;--surface-hover: #F1F5F9;--kanji-color: #E0358B;--kanji-bg: #FFF0F6;--word-color: #8B5CF6;--word-bg: #F5F0FF;--sentence-color: #0EA5E9;--sentence-bg: #F0F9FF;--learned-color: #10B981;--learned-bg: #ECFDF5;--practice-color: #F59E0B;--practice-bg: #FEF3C7;--text-primary: #1A1A2E;--text-secondary: #64748B;--text-muted: #94A3B8;--border: #E2E8F0;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .1);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color-scheme:light;color:var(--text-primary);background-color:var(--bg-color);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh;overflow-x:hidden;position:relative;background:linear-gradient(180deg,#FEFCFD 0%,var(--bg-color) 15%,var(--bg-color) 85%,#F8F0FF 100%)}.bg-orbs{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}.orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.35;animation:orbFloat 20s ease-in-out infinite}.orb-pink{width:400px;height:400px;background:var(--kanji-color);top:-5%;right:-5%;animation-delay:0s}.orb-purple{width:350px;height:350px;background:var(--word-color);top:40%;left:-8%;animation-delay:-7s}.orb-blue{width:300px;height:300px;background:var(--sentence-color);bottom:10%;right:5%;animation-delay:-14s}@keyframes orbFloat{0%,to{transform:translate(0) scale(1)}25%{transform:translate(30px,-20px) scale(1.05)}50%{transform:translate(-20px,30px) scale(.95)}75%{transform:translate(15px,15px) scale(1.02)}}.japanese-text{font-family:Noto Sans JP,sans-serif}#app{max-width:1100px;margin:0 auto;padding:0 1.5rem;display:flex;flex-direction:column;min-height:100vh;position:relative;z-index:1}.navbar{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 0;z-index:10}.logo{display:flex;align-items:center;gap:.6rem;font-family:Outfit,sans-serif;font-weight:800;font-size:1.2rem;letter-spacing:-.02em;white-space:nowrap;color:var(--text-primary);text-decoration:none}.logo-img{width:28px;height:28px}.nav-links{display:flex;gap:1.5rem}.nav-links a{color:var(--text-secondary);text-decoration:none;font-size:.9rem;font-weight:500;transition:color .2s ease}.nav-links a:hover{color:var(--text-primary)}.hero{display:flex;align-items:center;justify-content:space-between;gap:4rem;padding:3rem 0 4rem;position:relative;overflow:hidden}.hero-bg-kanji{position:absolute;inset:0;pointer-events:none;z-index:0;overflow:hidden}.hero-bg-kanji span{position:absolute;font-family:Noto Sans JP,sans-serif;font-weight:900;color:var(--kanji-color);opacity:.04;line-height:1}.hero-bg-kanji span:nth-child(1){font-size:8rem;top:-10%;left:-2%;transform:rotate(-12deg)}.hero-bg-kanji span:nth-child(2){font-size:6rem;top:5%;right:8%;transform:rotate(8deg)}.hero-bg-kanji span:nth-child(3){font-size:10rem;bottom:-5%;right:-3%;transform:rotate(-5deg)}.hero-bg-kanji span:nth-child(4){font-size:5rem;top:35%;left:15%;transform:rotate(15deg)}.hero-bg-kanji span:nth-child(5){font-size:7rem;bottom:10%;left:-1%;transform:rotate(-8deg)}.hero-bg-kanji span:nth-child(6){font-size:6rem;top:60%;right:20%;transform:rotate(10deg);opacity:.03}.hero-bg-kanji span:nth-child(7){font-size:9rem;top:-5%;left:40%;transform:rotate(-3deg);opacity:.025}.hero-bg-kanji span:nth-child(8){font-size:5rem;bottom:5%;left:55%;transform:rotate(12deg);opacity:.035}.hero-content{flex:1;max-width:520px;position:relative;z-index:1}.badge{display:inline-flex;align-items:center;gap:.5rem;padding:.35rem .9rem;background:linear-gradient(135deg,var(--kanji-bg),rgba(139,92,246,.1));border:1px solid rgba(224,53,139,.2);border-radius:100px;color:var(--kanji-color);font-size:.8rem;font-weight:700;margin-bottom:1.5rem;box-shadow:0 2px 12px #e0358b1a}.pulse-dot{width:7px;height:7px;background:var(--kanji-color);border-radius:50%;animation:pulse 2s infinite}@keyframes pulse{0%{box-shadow:0 0 #e0358b80}70%{box-shadow:0 0 0 8px #e0358b00}to{box-shadow:0 0 #e0358b00}}h1{font-family:Outfit,sans-serif;font-size:clamp(2.5rem,4.5vw,3.5rem);font-weight:800;line-height:1.1;letter-spacing:-.03em;margin-bottom:1.25rem;color:var(--text-primary)}.gradient-text{background:linear-gradient(135deg,var(--kanji-color),var(--word-color),var(--sentence-color));background-size:200% 200%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:gradientShift 4s ease infinite}@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.hero-content p{font-size:1.05rem;line-height:1.65;color:var(--text-secondary);margin-bottom:2rem;max-width:460px}.cta-group{display:flex;flex-direction:column;gap:1rem}.store-badges{display:flex;gap:.75rem}.store-badge-placeholder{padding:.7rem 1.2rem;font-size:.85rem;font-weight:600;color:var(--text-muted);background:var(--surface-color);border:1px solid var(--border);border-radius:12px;transition:border-color .2s}.store-badge-placeholder:hover{border-color:var(--text-muted)}.store-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:.9rem;font-weight:700;color:#fff;background:linear-gradient(135deg,#1a1a2e,#2d1b69);border:none;border-radius:14px;text-decoration:none;transition:transform .25s ease,box-shadow .25s ease;box-shadow:0 4px 15px #1a1a2e33}.store-badge svg{flex-shrink:0}.store-badge:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 8px 28px #8b5cf64d;color:#fff}.hero-visual{flex:1;display:flex;align-items:center;justify-content:center;position:relative;z-index:1}.unlock-chain{display:flex;flex-direction:column;align-items:center;gap:.5rem}.chain-step{display:flex;flex-direction:column;align-items:center;gap:.35rem}.chain-card{background:var(--surface-color);border:1px solid var(--border);border-radius:16px;padding:1rem 1.5rem;box-shadow:var(--shadow-md);display:flex;align-items:center;gap:1rem;border-left:3px solid transparent;transition:transform .3s ease,box-shadow .3s ease}.chain-card.kanji-accent{border-left-color:var(--kanji-color);background:linear-gradient(135deg,var(--surface-color) 70%,var(--kanji-bg));box-shadow:0 4px 16px #e0358b14}.chain-card.kanji-accent:hover{box-shadow:0 6px 24px #e0358b33;transform:translate(4px)}.chain-card.word-accent{border-left-color:var(--word-color);background:linear-gradient(135deg,var(--surface-color) 70%,var(--word-bg));box-shadow:0 4px 16px #8b5cf614}.chain-card.word-accent:hover{box-shadow:0 6px 24px #8b5cf633;transform:translate(4px)}.chain-card.sentence-accent{border-left-color:var(--sentence-color);background:linear-gradient(135deg,var(--surface-color) 70%,var(--sentence-bg));box-shadow:0 4px 16px #0ea5e914}.chain-card.sentence-accent:hover{box-shadow:0 6px 24px #0ea5e933;transform:translate(4px)}.chain-kanji{font-size:1.8rem;font-weight:900;color:var(--text-primary);padding:0 .25rem}.chain-word-row{display:flex;align-items:baseline;gap:.5rem}.chain-word{font-size:1.3rem;font-weight:700;color:var(--text-primary)}.chain-reading{font-size:.8rem;color:var(--text-muted)}.chain-card.word-accent{flex-direction:column;align-items:flex-start;gap:.4rem}.chain-sentence{font-size:1.2rem;font-weight:700;color:var(--text-primary)}.chain-translation{font-size:.8rem;color:var(--text-secondary);margin-top:.15rem}.chain-card.sentence-accent{flex-direction:column;align-items:flex-start;gap:.15rem}.chain-connector{color:var(--kanji-color);display:flex;align-items:center;justify-content:center;animation:connectorPulse 2s ease-in-out infinite}@keyframes connectorPulse{0%,to{opacity:.4;transform:scale(1)}50%{opacity:1;transform:scale(1.15)}}section h2{font-family:Outfit,sans-serif;font-size:2rem;font-weight:800;text-align:center;margin-bottom:.5rem;color:var(--text-primary)}.subtitle,.section-intro,.section-body{text-align:center;color:var(--text-secondary);font-size:1rem;line-height:1.65;max-width:620px;margin:0 auto}.subtitle{margin-bottom:2.5rem}.section-intro{margin-bottom:2rem}.section-body{margin-bottom:2.5rem}.problem-section{padding:4rem 2rem;margin:0 -1.5rem;background:linear-gradient(135deg,#f871710d,#e0358b0a);border-radius:32px}.problem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;margin-top:.5rem}.problem-card{background:var(--surface-color);border:1px solid var(--border);border-top:3px solid #F87171;border-radius:16px;padding:1.5rem;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}.problem-card:hover{transform:translateY(-3px);box-shadow:0 6px 20px #f8717126}.problem-icon{font-size:1.5rem;margin-bottom:.75rem;opacity:.7}.problem-card h3{font-family:Outfit,sans-serif;font-size:1.05rem;font-weight:700;margin-bottom:.5rem;color:var(--text-primary)}.problem-card p{font-size:.85rem;line-height:1.55;color:var(--text-secondary)}.solution-section{padding:4rem 2rem;margin:2rem -1.5rem 0;background:linear-gradient(135deg,#8b5cf60a,#0ea5e90a);border-radius:32px}.journey-bar{display:flex;align-items:center;justify-content:center;gap:.75rem;flex-wrap:wrap}.journey-step{background:var(--surface-color);border:1px solid var(--border);border-radius:14px;padding:1rem 1.5rem;text-align:center;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:.25rem}.journey-step.kanji-accent{border-bottom:3px solid var(--kanji-color);background:linear-gradient(to bottom,var(--surface-color),var(--kanji-bg))}.journey-step.word-accent{border-bottom:3px solid var(--word-color);background:linear-gradient(to bottom,var(--surface-color),var(--word-bg))}.journey-step.sentence-accent{border-bottom:3px solid var(--sentence-color);background:linear-gradient(to bottom,var(--surface-color),var(--sentence-bg))}.journey-label{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted)}.journey-text{font-size:1.15rem;font-weight:700;color:var(--text-primary)}.journey-arrow{color:var(--word-color);display:flex;align-items:center;opacity:.6;animation:arrowPulse 2s ease-in-out infinite}@keyframes arrowPulse{0%,to{opacity:.4}50%{opacity:.8}}.features-section{padding:4rem 0}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}.feature-tile{background:var(--surface-color);border:1px solid var(--border);border-radius:20px;padding:1.75rem;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;position:relative;overflow:hidden}.feature-tile:before{content:"";position:absolute;top:0;left:0;right:0;height:4px}.feature-tile:nth-child(1):before{background:linear-gradient(90deg,var(--kanji-color),rgba(224,53,139,.3))}.feature-tile:nth-child(2):before{background:linear-gradient(90deg,var(--word-color),rgba(139,92,246,.3))}.feature-tile:nth-child(3):before{background:linear-gradient(90deg,var(--sentence-color),rgba(14,165,233,.3))}.feature-tile:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.feature-tile:nth-child(1):hover{box-shadow:0 8px 28px #e0358b26;border-color:#e0358b33}.feature-tile:nth-child(2):hover{box-shadow:0 8px 28px #8b5cf626;border-color:#8b5cf633}.feature-tile:nth-child(3):hover{box-shadow:0 8px 28px #0ea5e926;border-color:#0ea5e933}.step-number{font-family:Outfit,sans-serif;font-size:3.5rem;font-weight:800;position:absolute;top:.75rem;right:1.25rem;line-height:1;opacity:.12}.feature-tile:nth-child(1) .step-number{color:var(--kanji-color)}.feature-tile:nth-child(2) .step-number{color:var(--word-color)}.feature-tile:nth-child(3) .step-number{color:var(--sentence-color)}.feature-tile h3{font-family:Outfit,sans-serif;font-size:1.1rem;font-weight:700;margin-bottom:.5rem;margin-top:.5rem;color:var(--text-primary)}.feature-tile p{font-size:.85rem;line-height:1.5;color:var(--text-secondary)}.type-badge{display:inline-block;padding:.2rem .6rem;border-radius:6px;font-size:.65rem;font-weight:800;letter-spacing:.5px;margin-bottom:.5rem}.type-badge.kanji{background:var(--kanji-bg);color:var(--kanji-color)}.type-badge.word{background:var(--word-bg);color:var(--word-color)}.type-badge.sentence{background:var(--sentence-bg);color:var(--sentence-color)}.stats-section{padding:4rem 2rem;margin:2rem -1.5rem 0;background:linear-gradient(135deg,#e0358b0a,#8b5cf60d,#0ea5e90a);border-radius:32px}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}.stat-card{background:var(--surface-color);border:1px solid var(--border);border-radius:16px;padding:1.5rem;text-align:center;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}.stat-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #e0358b1f}.stat-number{display:block;font-family:Outfit,sans-serif;font-size:2.2rem;font-weight:800;background:linear-gradient(135deg,var(--kanji-color),var(--word-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}.stat-label{display:block;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-bottom:.5rem}.stat-card p{font-size:.82rem;line-height:1.5;color:var(--text-secondary)}.credibility-section{padding:4rem 0}.credibility-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;margin-top:2rem}.credibility-card{background:var(--surface-color);border:1px solid var(--border);border-left:3px solid var(--word-color);border-radius:16px;padding:1.5rem;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.credibility-card:nth-child(1){border-left-color:var(--kanji-color)}.credibility-card:nth-child(2){border-left-color:var(--word-color)}.credibility-card:nth-child(3){border-left-color:var(--sentence-color)}.credibility-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #8b5cf61f;border-color:#8b5cf633}.credibility-card:nth-child(1):hover{box-shadow:0 8px 24px #e0358b1f}.credibility-card:nth-child(2):hover{box-shadow:0 8px 24px #8b5cf61f}.credibility-card:nth-child(3):hover{box-shadow:0 8px 24px #0ea5e91f}.credibility-card h3{font-family:Outfit,sans-serif;font-size:1rem;font-weight:700;margin-bottom:.5rem;color:var(--text-primary)}.credibility-card p{font-size:.85rem;line-height:1.55;color:var(--text-secondary)}.faq-section{padding:4rem 0}.faq-section h2{margin-bottom:2rem}.faq-list{max-width:680px;margin:0 auto}.faq-section .faq-item{background:var(--surface-color);border:1px solid var(--border);border-radius:14px;margin-bottom:.75rem;overflow:hidden}.faq-section .faq-item summary{padding:1rem 1.25rem;font-weight:600;font-size:.95rem;cursor:pointer;color:var(--text-primary);list-style:none;display:flex;justify-content:space-between;align-items:center}.faq-section .faq-item summary::-webkit-details-marker{display:none}.faq-section .faq-item summary:after{content:"+";font-size:1.2rem;font-weight:600;color:var(--text-muted);transition:transform .2s}.faq-section .faq-item[open] summary:after{content:"−"}.faq-section .faq-item p{padding:0 1.25rem 1rem;font-size:.9rem;line-height:1.6;color:var(--text-secondary)}.final-cta{padding:4rem 2rem;background:linear-gradient(135deg,var(--kanji-bg),var(--word-bg),var(--sentence-bg));background-size:200% 200%;animation:gradientShift 6s ease infinite;border-radius:28px;text-align:center;margin:2rem -1.5rem;border:1px solid rgba(224,53,139,.1);box-shadow:0 4px 30px #e0358b14,0 4px 30px #8b5cf60f;position:relative;overflow:hidden}.final-cta:before{content:"読";position:absolute;font-family:Noto Sans JP,sans-serif;font-weight:900;font-size:14rem;color:var(--kanji-color);opacity:.03;top:-20%;right:-5%;pointer-events:none;transform:rotate(-10deg)}.final-cta h2{margin-bottom:.75rem}.final-cta p{color:var(--text-secondary);font-size:1rem;line-height:1.6;max-width:480px;margin:0 auto 1.5rem}.final-cta .store-badges{justify-content:center}footer{text-align:center;padding:1.5rem 0;color:var(--text-muted);font-size:.85rem;border-top:1px solid var(--border);margin-top:2rem}.fade-in-up{opacity:0;transform:translateY(16px);animation:fadeInUp .7s cubic-bezier(.16,1,.3,1) forwards}.delay-1{animation-delay:.1s}.delay-2{animation-delay:.2s}.delay-3{animation-delay:.3s}.delay-4{animation-delay:.4s}.delay-5{animation-delay:.5s}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.scroll-fade-in{opacity:0;transform:translateY(24px);transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1)}.scroll-fade-in.visible{opacity:1;transform:translateY(0)}.legal-content{max-width:720px;margin:0 auto;padding:3rem 0;line-height:1.8}.legal-content h1{font-family:Outfit,sans-serif;font-size:2.5rem;margin-bottom:.75rem;color:var(--text-primary)}.legal-content .last-updated{color:var(--text-muted);margin-bottom:2.5rem}.legal-content h2{font-family:Outfit,sans-serif;font-size:1.4rem;margin-top:2rem;margin-bottom:.75rem;color:var(--kanji-color)}.legal-content p{margin-bottom:1.25rem;color:var(--text-secondary)}.legal-content ul{margin-left:1.5rem;margin-bottom:1.25rem}.legal-content li{margin-bottom:.4rem;color:var(--text-secondary)}.legal-content header{text-align:center;margin-bottom:3rem}.legal-content a{color:var(--kanji-color);text-decoration:none}.legal-content a:hover{text-decoration:underline}.contact-card{background:var(--surface-color);border:1px solid var(--border);padding:2.5rem;border-radius:20px;text-align:center;margin-top:1.5rem;display:flex;flex-direction:column;align-items:center;gap:1rem;box-shadow:var(--shadow-sm)}.contact-card h2{color:var(--text-primary)}.contact-icon{font-size:2.5rem;background:var(--kanji-bg);padding:1rem;border-radius:16px}.legal-content a.support-btn,.support-btn{background:var(--kanji-color);color:#fff;text-decoration:none;padding:.85rem 1.75rem;border-radius:14px;font-weight:700;font-size:.95rem;transition:transform .2s ease,box-shadow .2s ease}.legal-content a.support-btn:hover,.support-btn:hover{color:#fff;transform:translateY(-2px);box-shadow:0 4px 16px #e0358b40;text-decoration:none}.faq-item{margin-bottom:1.5rem}.faq-item h3{color:var(--text-primary);margin-bottom:.4rem;font-size:1rem}@media(max-width:968px){.hero{flex-direction:column;text-align:center;gap:2.5rem}.hero-content p{margin:0 auto 2rem}.cta-group{align-items:center}.problem-grid,.features-grid,.credibility-grid{grid-template-columns:1fr;max-width:400px;margin-left:auto;margin-right:auto}.stats-grid{grid-template-columns:repeat(2,1fr)}.journey-bar{flex-direction:column}.journey-arrow{transform:rotate(90deg)}}@media(max-width:600px){h1{font-size:2.2rem}.stats-grid{grid-template-columns:1fr;max-width:320px;margin-left:auto;margin-right:auto}.store-badges{flex-direction:column;align-items:center}.store-badge{justify-content:center}.problem-section,.solution-section,.stats-section,.final-cta{margin-left:-.75rem;margin-right:-.75rem;padding-left:1.25rem;padding-right:1.25rem;border-radius:20px}.orb{opacity:.2}.hero-bg-kanji span{opacity:.025}}