@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Noto+Sans+JP:wght@400;500;600;700;900&display=swap";:root{color-scheme:light;--page-max-width: 1200px;--page-content-padding: 16px;--color-text: #1f2937;--color-text-muted: #4b5563;--color-bg: #fdfbf8;--color-surface: #fff;--color-surface-alt: #f7f3ed;--color-border: #e5e7eb;--color-success: #16a34a;--color-danger: #ef4444;--color-warning: #fb923c;--font-base: Noto Sans JP, Inter, Hiragino Sans, Yu Gothic, Meiryo, sans-serif;--radius-lg: 12px;--radius-xl: 16px;--shadow-soft: 0 24px 60px rgba(31, 41, 55, .08);--cls-color-1: #f78fb3;--cls-color-2: #8c7dff;--cls-color-3: #34c759;--cls-color-4: #4ec4eb;--cls-color-5: #fb7185;--cls-color-6: #fbbf24;--cls-color-7: #f97316;--cls-color-8: #8cc63f;--cls-color-9: #3b82f6;--cls-color-10: #1e40af;--cls-color-11: #f472b6;--cls-color-12: #94a3b8}@font-face{font-family:kin-iro-sansserif;src:url(/static/fonts/GN-Kin-iro_SansSerif.ttf) format("truetype");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:ginkinirosansserif;src:url(/static/fonts/GN-Kin-iro_SansSerif.ttf) format("truetype");font-weight:400;font-style:normal;font-display:swap}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#fff;color:#1a1a1a;line-height:1.4;min-height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden}.container{text-align:center;max-width:500px;padding:60px 40px}.logo-wrapper{display:block;text-align:center;text-decoration:none;margin-bottom:16px}.logo-img{height:52px;width:auto;opacity:0;transform:translateY(-60px) rotate(-3deg);animation:logoDrop .6s cubic-bezier(.34,1.56,.64,1) .1s forwards}@keyframes logoDrop{0%{opacity:0;transform:translateY(-60px) rotate(-3deg) scale(.9)}50%{opacity:1;transform:translateY(8px) rotate(1deg) scale(1.02)}70%{transform:translateY(-4px) rotate(-.5deg) scale(1)}to{opacity:1;transform:translateY(0) rotate(0) scale(1)}}.subtitle{font-size:.95rem;font-weight:400;color:#4b5563;margin-bottom:40px;opacity:0;animation:contentFadeIn .4s ease-out .5s forwards}@keyframes contentFadeIn{to{opacity:1}}.main-section{opacity:0;animation:contentFadeIn .5s ease-out .6s forwards}.button-group{display:flex;flex-direction:row;gap:12px}.btn{flex:1;display:inline-block;padding:10px 12px;font-size:.9rem;font-weight:600;text-decoration:none;border-radius:0;transition:all .2s ease;border:none;cursor:pointer;box-shadow:2px 3px #0000001a;text-align:center;white-space:nowrap}.btn:active{transform:translateY(1px);box-shadow:1px 2px #0000001a}.btn-login{background:#1a1a1a;color:#fff}.btn-login:hover{background:#333;transform:translateY(-1px);box-shadow:3px 4px #00000026}.btn-signup{background:#fff;color:#1a1a1a;border:1px solid #1a1a1a}.btn-signup:hover{background:#f5f5f5;transform:translateY(-1px);box-shadow:3px 4px #00000026}@media(max-width:768px){.logo-img{height:48px}.container{padding:40px 20px}}@media(max-width:480px){.logo-img{height:44px}.container{padding:30px 15px}}