:root{--color-primary: #b3dff6;--color-secondary: #3fa2b6;--color-accent: #e97997;--color-gray: #ddd}html{font-family:"Noto Sans JP, 'sans-serif'";line-height:1.5;scroll-behavior:smooth}body{color:#2c2c2c}h2{font-family:源ノ明朝}.serif-text{font-family:"Noto Serif JP",serif}.fade-in{opacity:0;transform:translateY(20px);transition:opacity .8s ease-out,transform .8s ease-out}.fade-in.show{opacity:1;transform:translateY(0)}.nayami_1 img{top:-29px}.nayami_3 img{top:-17px}.triangle{width:0;height:0;border-left:10px solid transparent;border-right:10px solid transparent;border-top:10px solid #ddd;margin:auto auto 8px}.fukidashi{padding:10px 0;border-radius:50px;display:block;margin:auto;width:80%}.fukidashi-triangle{position:absolute;left:50%;bottom:-6px;width:0;height:0;border-left:10px solid transparent;border-right:10px solid transparent;border-top:10px solid;text-align:center;transform:translate(-50%)}.vertical-line{position:absolute;left:17%;top:1.5rem;height:80%;border-left:20px solid #b3dff6;z-index:1}.btn span{clip-path:polygon(0 0,100% 0,100% 80%,50% 100%,0 80%)}.nav.active{display:block}.pc-only{display:none}.grid{--size: 24px;--line: rgba(0, 0, 0, .08);width:100%;height:100%;background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px calc(var(--size)));background-size:var(--size) var(--size);background-image:repeating-linear-gradient(0deg,var(--line) 0 1px,transparent 1px calc(var(--size))),repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px calc(var(--size)))}.intro_triangle{width:0;height:0;border-left:80px solid transparent;border-right:80px solid transparent;border-top:80px solid #b3dff6}.writing-vertical{writing-mode:vertical-rl}@media screen and (min-width: 768px){.fukidashi{width:50%}.vertical-line{position:absolute;left:12%}.pc-only{display:inline}.sp-only{display:none}}