.nattsu-page{background:#fff;color:#202024}
.nattsu-shell{max-width:1240px;margin:auto;padding:76px clamp(22px,6vw,84px)}
.nattsu-hero{padding-top:44px;padding-bottom:64px}
.nattsu-back{display:inline-block;color:#c73868;font-size:14px;text-decoration:underline;text-underline-offset:4px;margin-bottom:48px}
.nattsu-brand{color:#c73868;font-size:14px;letter-spacing:.035em;line-height:1.8;margin:0 0 18px}
.nattsu-hero h1{font-size:clamp(30px,4.4vw,58px);font-weight:500;line-height:1.7;letter-spacing:-.045em;margin:0 0 24px}
.nattsu-tagline{font-size:clamp(32px,5.6vw,68px);font-weight:500;line-height:1.6;letter-spacing:-.04em;margin:0 0 28px}
.nattsu-tagline em{color:#c73868;font-family:"Yu Mincho","Noto Serif JP",serif;font-weight:500;font-style:normal}
.nattsu-intro{max-width:720px;font-size:16px;line-height:2;color:#535158;margin:0 0 36px}
.nattsu-navigation{display:flex;flex-wrap:wrap;gap:16px 30px;border-top:1px solid #f0dce3;padding-top:22px;font-size:14px;color:#c73868}
.nattsu-navigation a{text-decoration:underline;text-underline-offset:5px}
.nattsu-section-heading>p{font-size:14px;color:#c73868;letter-spacing:.12em;margin:0 0 18px}
.nattsu-section-heading h2{font-family:"Yu Mincho","Noto Serif JP",serif;color:#71384d;font-size:clamp(26px,3.5vw,44px);line-height:1.75;font-weight:500;letter-spacing:-.035em;margin:0 0 24px}
.nattsu-technology{border-top:1px solid #f0dce3}
.nattsu-subheading{font-size:clamp(18px,2vw,24px);color:#c73868;font-weight:500;line-height:1.8;margin:0 0 32px}
.nattsu-tech-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:48px;align-items:center}
.nattsu-copy{font-size:16px;line-height:2;color:#535158;max-width:850px}
.nattsu-copy p{margin:0 0 22px}
.nattsu-size-card{border-left:2px solid #f0dce3;padding-left:32px;color:#c73868}
.nattsu-size-card p{font-size:14px;line-height:1.8;margin:0 0 12px}
.nattsu-size-card strong{display:block;font-size:clamp(36px,4.8vw,62px);letter-spacing:-.055em;font-weight:500;line-height:1.3;margin:14px 0}
.nattsu-size-card strong span{display:block;font-size:18px;letter-spacing:0;margin-top:8px}
.nattsu-size-card small{display:block;font-size:12px;color:#71656c;line-height:1.8}
.nattsu-diagram{margin:32px auto 20px;max-width:850px;background:#fff}
.nattsu-diagram img{display:block;width:100%;height:auto;object-fit:contain}
.nattsu-technology .nattsu-diagram img{aspect-ratio:3/1;object-fit:cover}
.nattsu-diagram figcaption,.nattsu-note{font-size:12px;line-height:1.9;color:#71656c;margin:16px 0 0}
.nattsu-skincare{border-top:1px solid #f0dce3;border-bottom:1px solid #f0dce3}
.nattsu-care-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:36px}
.nattsu-care-points p{font-size:16px;line-height:1.8;margin:0;padding-top:18px;border-top:1px solid #d6e3e7}
.nattsu-care-points span{display:block;font-size:12px;letter-spacing:.1em;color:#c73868;margin-bottom:10px}
.nattsu-products{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin-top:36px}
.nattsu-product{display:flex;flex-direction:column;min-width:0}
.nattsu-product-image{height:290px;background:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:24px}
.nattsu-product-image img{max-width:100%;width:auto;max-height:100%;height:auto;object-fit:contain}
.nattsu-product .nattsu-product-label{color:#c73868;font-size:12px;letter-spacing:.08em;margin:0 0 12px}
.nattsu-product h3{font-size:20px;line-height:1.7;font-weight:500;margin:0 0 14px;overflow-wrap:anywhere}
.nattsu-product .nattsu-volume{color:#71656c;font-size:14px;margin:0 0 16px}
.nattsu-product p{font-size:16px;line-height:1.9;color:#535158;margin:0 0 22px}
.nattsu-product-use{border-top:1px solid #f0dce3;padding-top:20px;margin-top:auto}
.nattsu-product-use h4{font-size:14px;line-height:1.8;color:#c73868;margin:0 0 8px;font-weight:500}
.nattsu-product-use p{font-size:14px}
.nattsu-cover{display:grid;grid-template-columns:1.1fr 1fr;gap:36px;align-items:center;margin-bottom:34px}
.nattsu-cover-copy{min-width:0}
.nattsu-page-title{font-size:14px;letter-spacing:.08em;color:#b6305e;line-height:1.8;margin:0 0 22px}
.nattsu-cover-products{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));align-items:center;gap:12px;background:#fdf2f5;padding:60px 24px 30px;min-height:340px;border-radius:100px 100px 0 0}
.nattsu-cover-products img{display:block;width:100%;height:210px;object-fit:contain;mix-blend-mode:multiply}
.nattsu-cover-products p{grid-column:1/-1;text-align:center;color:#a35c74;font-family:"Yu Mincho","Noto Serif JP",serif;font-size:16px;line-height:1.8;margin:14px 0 0}
.nattsu-products{gap:22px}
.nattsu-product{background:#fdf6f8;padding:28px 22px 24px}
.nattsu-product-image{height:245px;background:transparent}
.nattsu-product-image img{mix-blend-mode:multiply}
.nattsu-product h3{font-size:20px;color:#71384d}
.nattsu-tech-name{font-size:20px;line-height:1.8;font-weight:500;margin:0 0 20px}
.nattsu-subheading{font-size:16px;line-height:1.9}
.nattsu-size-card strong{font-size:clamp(32px,3.2vw,46px)}
.nattsu-skincare{background:#fff}
.nattsu-copy{color:#665760}
.nattsu-navigation a{padding:5px 0}
@media(max-width:1080px) and (min-width:821px){.nattsu-products{gap:16px}.nattsu-product{padding:22px 16px}.nattsu-product h3{font-size:18px}}
@media(max-width:820px){.nattsu-shell{padding:52px 22px}.nattsu-hero{padding-top:28px}.nattsu-back{margin-bottom:30px}.nattsu-tech-layout{grid-template-columns:1fr;gap:20px}.nattsu-size-card{padding-left:22px}.nattsu-products{grid-template-columns:1fr;gap:40px}.nattsu-product{max-width:560px;width:100%;margin:auto}.nattsu-product-image{height:260px}.nattsu-care-points{grid-template-columns:1fr;gap:20px}.nattsu-tagline{font-size:clamp(28px,6.8vw,52px)}.nattsu-diagram{margin-top:24px}}
@media(max-width:820px){.nattsu-cover{grid-template-columns:1fr;gap:28px}.nattsu-hero h1{font-size:clamp(28px,8.1vw,58px)}.nattsu-cover-products{max-width:560px;width:100%;margin:auto;min-height:280px;padding:40px 20px 28px}.nattsu-cover-products img{height:180px}.nattsu-intro{margin-bottom:24px}.nattsu-product{padding:28px}.nattsu-navigation{gap:12px 22px}}