:root{--gold:#D4AF37;--white:#fff;--beige:#FAF7F0;--gray:#E8E8E8;--text:#333;--muted:#6D6A63;--danger:#B3261E;--radius:18px;--shadow:0 8px 28px rgba(0,0,0,.07);--max:1080px}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Yu Gothic",Meiryo,sans-serif;color:var(--text);line-height:1.75;background:#fff}a{color:inherit}
header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.96);border-bottom:1px solid var(--gray)}
.nav{max-width:var(--max);margin:auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{font-weight:800;text-decoration:none}.brand small{display:block;font-size:11px;color:var(--muted)}
nav{display:flex;gap:16px;flex-wrap:wrap}nav a{font-size:14px;text-decoration:none;color:var(--muted)}
main{max-width:var(--max);margin:auto;padding:42px 20px 72px}.hero{background:linear-gradient(180deg,#fff,var(--beige));border:1px solid #eee8da;border-radius:28px;padding:52px 34px;box-shadow:var(--shadow);text-align:center}
.kicker{color:#8A6A00;font-weight:800;letter-spacing:.08em;font-size:13px}h1{font-size:clamp(30px,6vw,54px);line-height:1.18;margin:10px 0 18px}h2{font-size:28px;margin:48px 0 18px}h3{font-size:20px;margin:28px 0 10px}.lead{font-size:18px;max-width:760px;margin:auto;color:#4b4944}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:26px}.btn{display:inline-block;padding:12px 18px;border-radius:999px;text-decoration:none;border:1px solid var(--gold);font-weight:700}.btn.primary{background:var(--gold);color:#fff}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}.card{border:1px solid var(--gray);border-radius:var(--radius);padding:22px;background:#fff;box-shadow:var(--shadow)}.card h3{margin-top:0}
.notice{background:var(--beige);border-left:4px solid var(--gold);padding:16px 18px;border-radius:12px}.warning{background:#fff7f5;border-left-color:var(--danger)}.meta{font-size:14px;color:var(--muted)}.content{max-width:820px;margin:auto}.content h1{font-size:38px}
form{display:grid;gap:16px}label{font-weight:700}input,select,textarea{width:100%;padding:12px 14px;border:1px solid #cbc7bd;border-radius:12px;font:inherit;background:#fff}textarea{min-height:180px;resize:vertical}button{border:0;border-radius:999px;background:var(--gold);color:#fff;padding:13px 22px;font:inherit;font-weight:800}
footer{border-top:1px solid var(--gray);background:var(--beige)}.footer{max-width:var(--max);margin:auto;padding:28px 20px;color:var(--muted);font-size:13px}.footer-links{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:10px}.footer a{text-decoration:none}.badge{display:inline-block;background:#fff8dc;border:1px solid #eadca0;border-radius:999px;padding:4px 10px;font-size:12px}
@media(max-width:820px){nav{display:none}.grid{grid-template-columns:1fr}.hero{padding:38px 20px}main{padding-top:28px}}

/* nanairo official site home */
.home-main{max-width:1180px;padding-top:28px}
.site-hero{overflow:hidden;border-radius:30px;border:1px solid #eee8da;box-shadow:var(--shadow);background:var(--beige)}
.site-hero img{display:block;width:100%;height:auto}
.home-intro{max-width:860px;margin:64px auto 26px;text-align:center}
.home-eyebrow,.section-kicker{display:inline-block;margin:0 0 8px;color:#8A6A00;font-size:13px;font-weight:800;letter-spacing:.08em}
.home-intro h1{font-size:clamp(30px,4.8vw,48px);margin:6px 0 16px}
.home-intro p{max-width:720px;margin:0 auto;color:var(--muted);font-size:17px}
.mobile-break{display:none}
.feature-section{margin-top:76px}
.section-heading{display:flex;align-items:flex-start;gap:16px;margin-bottom:24px}
.section-heading h2{margin:0;font-size:clamp(25px,3.5vw,36px);line-height:1.35}
.section-kicker{margin-bottom:4px}
.section-number{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border:1px solid #eadca0;border-radius:50%;background:#fffaf0;color:#8A6A00;font-weight:800}
.feature-grid{display:grid;gap:22px}
.feature-grid-three{grid-template-columns:repeat(3,minmax(0,1fr))}
.feature-grid-two{grid-template-columns:repeat(2,minmax(0,1fr));max-width:820px;margin:0 auto}
.visual-card{overflow:hidden;border:1px solid #eee8da;border-radius:24px;background:#fff;box-shadow:var(--shadow)}
.visual-card img{display:block;width:100%;height:auto;background:var(--beige)}
.visual-card-copy{padding:18px 20px 22px}
.visual-card-copy span{color:#9A7100;font-size:12px;font-weight:800;letter-spacing:.1em}
.visual-card-copy h3{margin:5px 0 7px;font-size:20px;line-height:1.45}
.visual-card-copy p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.philosophy-section{margin-top:86px;padding:58px 34px;border:1px solid #eee8da;border-radius:30px;background:linear-gradient(135deg,#fff 0%,#fbf6ea 100%);box-shadow:var(--shadow);text-align:center}
.philosophy-copy{max-width:790px;margin:auto}
.philosophy-copy h2{margin:8px 0 18px;font-size:clamp(27px,4vw,40px);line-height:1.45}
.philosophy-copy>p{margin:0;color:#55514a;font-size:16px}
.home-cta-row{margin-top:28px}
.android-section{margin-top:28px;padding:28px 30px;border:1px solid #eadca0;border-radius:22px;background:#fffaf0}
.android-section h2{margin:8px 0 6px;font-size:24px}
.android-section p{margin:0;color:var(--muted)}
.safety-section{margin-top:54px}
.safety-section h2{margin-top:0}
@media(max-width:900px){.feature-grid-three{grid-template-columns:1fr 1fr}.feature-grid-three .visual-card:last-child{grid-column:1/-1;max-width:390px;justify-self:center;width:100%}}
@media(max-width:680px){.home-main{padding-top:18px}.site-hero{border-radius:18px}.home-intro{margin-top:42px}.mobile-break{display:block}.section-heading{gap:12px}.section-number{width:42px;height:42px}.feature-section{margin-top:58px}.feature-grid-three,.feature-grid-two{grid-template-columns:1fr}.feature-grid-three .visual-card:last-child{grid-column:auto;max-width:none}.visual-card{border-radius:20px}.visual-card-copy{padding:16px 17px 19px}.philosophy-section{margin-top:64px;padding:42px 20px;border-radius:22px}.android-section{padding:24px 20px}.android-section h2{font-size:21px}}

/* LP layout v3 */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid #eee8da}
.lp-main{max-width:none;padding:0 0 72px;overflow:hidden}
.lp-hero{max-width:1180px;margin:0 auto;padding:28px 20px 0}
.lp-hero-image{border-radius:28px;overflow:hidden;border:1px solid #eee8da;box-shadow:var(--shadow);background:var(--beige)}
.lp-hero-image img{display:block;width:100%;height:auto}
.lp-hero-copy{max-width:820px;margin:34px auto 0;text-align:center}
.lp-eyebrow{margin:0 0 8px;color:#8A6A00;font-size:13px;font-weight:800;letter-spacing:.08em}
.lp-hero-copy h1{margin:6px 0 16px;font-size:clamp(30px,5vw,48px);line-height:1.35}
.lp-hero-copy h1 span{color:#B87900}
.lp-lead{max-width:700px;margin:0 auto;color:var(--muted);font-size:17px;line-height:1.9}
.play-cta{display:inline-flex;align-items:center;justify-content:center;margin-top:22px;padding:13px 22px;border-radius:999px;background:var(--gold);color:#fff;text-decoration:none;font-weight:800;box-shadow:0 8px 24px rgba(212,175,55,.25)}
.lp-problem{max-width:900px;margin:78px auto 0;padding:0 20px;text-align:center}
.lp-problem h2,.lp-section-title h2,.lp-philosophy h2,.lp-download h2{margin:4px 0 18px;font-size:clamp(26px,4vw,40px);line-height:1.45}
.problem-chips{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.problem-chips span{padding:9px 14px;border:1px solid #eadca0;border-radius:999px;background:#fffaf0;color:#6f5920;font-weight:700;font-size:14px}
.lp-features,.lp-more{max-width:1080px;margin:88px auto 0;padding:0 20px}.lp-section-title{text-align:center;margin-bottom:34px}
.lp-feature-row{display:grid;grid-template-columns:minmax(280px,410px) minmax(0,1fr);gap:56px;align-items:center;padding:54px 0;border-top:1px solid #f0eadc}.lp-feature-row:first-of-type{border-top:0}.lp-feature-row.reverse{grid-template-columns:minmax(0,1fr) minmax(280px,410px)}.lp-feature-row.reverse .lp-feature-media{order:2}.lp-feature-row.reverse .lp-feature-copy{order:1}
.lp-feature-media{max-height:680px;overflow:hidden;border-radius:28px;border:1px solid #eee8da;background:#fff;box-shadow:var(--shadow)}.lp-feature-media img{display:block;width:100%;height:auto}
.lp-feature-copy{padding:12px 0}.step-pill{display:inline-block;padding:5px 11px;border-radius:999px;background:#fff6d7;color:#8A6A00;font-weight:800;font-size:12px;letter-spacing:.08em}.lp-feature-copy h3{margin:12px 0 12px;font-size:clamp(25px,3.4vw,36px);line-height:1.45}.lp-feature-copy p{margin:0;max-width:560px;color:var(--muted);font-size:16px;line-height:1.95}
.lp-more-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;max-width:900px;margin:0 auto}.lp-more-card{overflow:hidden;border:1px solid #eee8da;border-radius:26px;background:#fff;box-shadow:var(--shadow)}.lp-more-media{max-height:580px;overflow:hidden}.lp-more-media img{display:block;width:100%;height:auto}.lp-more-copy{padding:20px 22px 24px}.lp-more-copy h3{margin:0 0 8px;font-size:22px;line-height:1.45}.lp-more-copy p{margin:0;color:var(--muted);font-size:14px;line-height:1.8}
.lp-philosophy{max-width:920px;margin:96px auto 0;padding:54px 34px;border-radius:30px;background:linear-gradient(135deg,#fff,#fbf6ea);border:1px solid #eee8da;text-align:center;box-shadow:var(--shadow)}.lp-philosophy>p:last-child{max-width:760px;margin:0 auto;color:#55514a;font-size:16px;line-height:1.95}
.lp-download{max-width:920px;margin:34px auto 0;padding:0 20px}.lp-download-inner{padding:36px 34px;border:1px solid #eadca0;border-radius:24px;background:#fffaf0;text-align:center}.lp-download h2{font-size:clamp(24px,3.4vw,34px);margin-top:10px}.lp-download p{max-width:700px;margin:0 auto;color:var(--muted);line-height:1.9}.download-status{display:inline-block;margin-top:20px;padding:11px 16px;border-radius:999px;background:#fff;border:1px solid #eadca0;color:#8A6A00;font-weight:800}
.lp-safety{max-width:920px;margin:54px auto 0;padding:0 20px}.lp-safety h2{font-size:24px;margin:0 0 14px}

@media(max-width:900px){
  .lp-feature-row,.lp-feature-row.reverse{grid-template-columns:minmax(240px,320px) minmax(0,1fr);gap:34px}.lp-feature-row.reverse .lp-feature-media{order:1}.lp-feature-row.reverse .lp-feature-copy{order:2}.lp-feature-row.reverse{grid-template-columns:minmax(240px,320px) minmax(0,1fr)}
  .lp-feature-media{max-height:560px}.lp-more-grid{gap:18px}
}
@media(max-width:680px){
  .lp-main{padding-bottom:56px}.lp-hero{padding:14px 0 0}.lp-hero-image{border-radius:0;border-left:0;border-right:0;box-shadow:none}.lp-hero-copy{margin-top:28px;padding:0 20px}.lp-hero-copy h1{font-size:30px;line-height:1.45}.lp-lead{font-size:15px;line-height:1.85}.play-cta{width:100%;max-width:360px}
  .lp-problem{margin-top:58px}.lp-problem h2{font-size:26px;line-height:1.55}.problem-chips{gap:8px}.problem-chips span{font-size:13px}
  .lp-features,.lp-more{margin-top:64px;padding:0 16px}.lp-section-title{margin-bottom:14px}.lp-section-title h2{font-size:28px;line-height:1.5}
  .lp-feature-row,.lp-feature-row.reverse{display:flex;flex-direction:column;gap:20px;padding:34px 0}.lp-feature-row.reverse .lp-feature-media,.lp-feature-row.reverse .lp-feature-copy{order:initial}.lp-feature-media{width:min(78vw,330px);max-height:520px;border-radius:22px}.lp-feature-copy{text-align:center;padding:0 8px}.lp-feature-copy h3{font-size:26px;margin-top:10px}.lp-feature-copy p{font-size:15px;line-height:1.85}
  .lp-more-grid{grid-template-columns:1fr;max-width:360px}.lp-more-card{border-radius:22px}.lp-more-media{max-height:470px}.lp-more-copy{text-align:center}.lp-more-copy h3{font-size:21px}
  .lp-philosophy{margin-top:68px;border-radius:0;border-left:0;border-right:0;padding:42px 22px}.lp-philosophy h2{font-size:28px}.lp-philosophy>p:last-child{font-size:15px}
  .lp-download{margin-top:24px;padding:0 16px}.lp-download-inner{padding:30px 20px;border-radius:22px}.lp-download h2{font-size:25px}.download-status{display:block}
  .lp-safety{margin-top:44px;padding:0 16px}
}


/* LP refinements v4: branded header + mobile reading order */
.brand-image{display:flex;align-items:center;min-width:0;text-decoration:none}
.brand-image img{display:block;width:220px;max-width:42vw;height:auto}
@media(max-width:820px){
  .nav{padding:10px 14px;min-height:64px}
  .brand-image img{width:190px;max-width:66vw}
}
@media(max-width:680px){
  .lp-feature-row .lp-feature-copy,.lp-feature-row.reverse .lp-feature-copy{order:1}
  .lp-feature-row .lp-feature-media,.lp-feature-row.reverse .lp-feature-media{order:2}
  .lp-more-card{display:flex;flex-direction:column}
  .lp-more-copy{order:1;padding:18px 18px 14px}
  .lp-more-media{order:2}
}

/* LP refinement v5: concern visual + three-step transition */
.lp-problem-visual{max-width:1080px;padding:0 20px;text-align:initial}
.lp-problem-visual img{display:block;width:100%;height:auto;border-radius:28px;box-shadow:var(--shadow)}
.lp-section-title h2 span{color:#e87516}
@media(max-width:680px){
  .lp-problem-visual{margin-top:46px;padding:0}
  .lp-problem-visual img{border-radius:0;box-shadow:none}
  .lp-features{margin-top:48px}
  .lp-section-title h2{font-size:26px;line-height:1.55}
}

/* v6: bridge from sharing to community recipes */
.lp-community-bridge{grid-column:1/-1;max-width:760px;margin:12px auto 4px;padding:30px 28px;text-align:center;border-radius:24px;background:#fffaf0;border:1px solid #eadca0}
.lp-community-bridge h3{margin:4px 0 10px;font-size:clamp(24px,3.2vw,34px);line-height:1.5}
.lp-community-bridge>p:last-child{margin:0;color:var(--muted);font-size:15px;line-height:1.85}
@media(max-width:680px){.lp-community-bridge{margin:4px 0 0;padding:25px 18px;border-radius:20px}.lp-community-bridge h3{font-size:24px;line-height:1.55}.lp-community-bridge>p:last-child{font-size:14px}}

/* v7: sharing/community as readable LP rows */
.lp-more-flow{max-width:900px;margin:0 auto}
.lp-more-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,410px);gap:56px;align-items:center;padding:48px 0;border-top:1px solid #f0eadc}
.lp-more-row:first-child{border-top:0}
.lp-more-row.community-row{grid-template-columns:minmax(280px,410px) minmax(0,1fr)}
.lp-more-row .lp-more-media{max-height:580px;overflow:hidden;border-radius:26px;border:1px solid #eee8da;background:#fff;box-shadow:var(--shadow)}
.lp-more-row .lp-more-copy{padding:12px 0}
.lp-more-row .lp-more-copy h3{margin:4px 0 12px;font-size:clamp(25px,3.2vw,34px);line-height:1.5}
.lp-more-row .lp-more-copy p{font-size:15px;line-height:1.9}
@media(max-width:680px){
  .lp-more-flow{max-width:360px}
  .lp-more-row,.lp-more-row.community-row{display:flex;flex-direction:column;gap:18px;padding:32px 0}
  .lp-more-row .lp-more-copy{order:1;text-align:center;padding:0 8px}
  .lp-more-row .lp-more-media{order:2;width:100%;max-height:470px;border-radius:22px}
  .lp-more-row .lp-more-copy h3{font-size:24px;line-height:1.5}
  .lp-more-row .lp-more-copy p{font-size:14px;line-height:1.85}
}

/* About page */
.about-page{max-width:1040px;margin:0 auto;padding:56px 22px 88px}.about-intro{max-width:900px;margin:0 auto;text-align:center}.about-intro h1{margin:12px 0 10px;font-size:clamp(36px,5vw,54px)}.about-intro h2{margin:0 0 22px;font-size:clamp(25px,3.4vw,38px);line-height:1.45}.about-intro>p{max-width:780px;margin:12px auto;color:#514c44;line-height:1.95}.about-hero-image{display:block;width:100%;margin:34px auto 0;border-radius:26px;box-shadow:var(--shadow)}
.about-section{margin-top:84px}.about-section>h2{margin:4px 0 28px;font-size:clamp(27px,3.5vw,38px);line-height:1.4}.about-feature-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.about-feature-list article{padding:26px 26px 24px;border:1px solid #eee8da;border-radius:22px;background:#fff;box-shadow:0 8px 28px rgba(64,45,20,.06)}.about-feature-list h3{margin:0 0 10px;font-size:21px;line-height:1.5}.about-feature-list p{margin:0;color:#5c564e;line-height:1.85}
.about-share-section{padding-top:10px}.about-calc-section{max-width:900px;margin-left:auto;margin-right:auto}.about-copy-block{margin:34px 0}.about-copy-block h3{margin:0 0 10px;font-size:23px}.about-copy-block p{color:#565149;line-height:1.9}.formula-box{margin:18px 0;padding:18px 20px;border:1px solid #eadca0;border-radius:16px;background:#fffaf0;font-weight:800;text-align:center;font-size:clamp(18px,2.4vw,24px);letter-spacing:.02em}.formula-box span{color:#a87600}.about-note{font-size:14px;color:var(--muted)!important}.about-infographic{margin:36px auto 52px}.about-infographic img{display:block;width:min(100%,820px);margin:auto;border-radius:22px;box-shadow:var(--shadow)}.about-infographic figcaption{text-align:center;margin-top:10px;color:var(--muted);font-size:13px}
.supplement-section{max-width:900px;margin-left:auto;margin-right:auto}.supplement-section>p{line-height:1.9;color:#565149}.supplement-types{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0 22px}.supplement-types span{padding:10px 14px;border:1px solid #eadca0;border-radius:999px;background:#fffaf0;color:#6f5920;font-weight:700}
.about-philosophy{margin-top:90px;padding:58px 30px;border:1px solid #eee8da;border-radius:30px;background:linear-gradient(135deg,#fff 0%,#fbf6ea 100%);box-shadow:var(--shadow);text-align:center}.about-philosophy h2{font-size:clamp(27px,3.5vw,38px);line-height:1.5}.about-philosophy p{max-width:720px;margin:14px auto;line-height:1.9}.philosophy-lines{font-size:clamp(19px,2.8vw,26px);line-height:1.8!important}.about-closing{margin-top:28px!important;color:#b37a00;font-size:clamp(25px,3.5vw,38px);font-weight:800;line-height:1.5!important}.about-operator{max-width:900px;margin-left:auto;margin-right:auto}.about-operator h2{font-size:24px}.about-operator p{color:var(--muted)}
@media(max-width:720px){.about-page{padding:34px 16px 68px}.about-intro{text-align:left}.about-intro>p{margin-left:0}.about-hero-image{margin-top:26px;border-radius:18px}.about-section{margin-top:62px}.about-feature-list{grid-template-columns:1fr;gap:14px}.about-feature-list article{padding:21px 19px;border-radius:18px}.about-feature-list h3{font-size:20px}.about-section>h2{margin-bottom:20px}.about-copy-block{margin:28px 0}.about-copy-block h3{font-size:21px}.formula-box{padding:16px 12px;font-size:18px}.about-infographic{margin:28px auto 42px}.about-infographic img{border-radius:16px}.about-philosophy{margin-top:66px;padding:42px 20px;border-radius:22px}.supplement-types{gap:8px}.supplement-types span{font-size:13px}}

/* about page refinements */
.desktop-break{display:block}
.about-share-visual{max-width:1100px;margin:0 auto 30px}
.about-share-visual img{display:block;width:100%;height:auto;border-radius:22px;border:1px solid #eee8da;box-shadow:var(--shadow);background:var(--beige)}
@media(max-width:720px){.desktop-break{display:none}.about-share-visual{margin-bottom:22px}.about-share-visual img{border-radius:16px}}