:root{--p:#B91C1C;--a:#1F2937;--bg:#FEF8E7;--bg2:#FEF3C7;--tx:#1F2937;--tm:#57534E;--cb:#FFFFFF;--br:#FDE68A}
*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--bg);color:var(--tx);font-family:'Noto Sans',sans-serif;line-height:1.7}
h1,h2,h3{font-family:'Noto Serif',serif;font-weight:700;line-height:1.2;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 1.5rem}

.site-header{background:var(--bg);border-bottom:1px solid var(--br);position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:.6rem;font-family:'Noto Serif',serif;font-size:1.4rem;font-weight:700;color:var(--p)}
.brand img{width:34px;height:34px}
.brand .em{color:var(--a)}
.nav-links{display:flex;gap:2rem;list-style:none}
.nav-links a{font-size:.9rem;color:var(--tm);font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--p)}
.nav-links a.nav-cta{background:var(--p);color:#fff;padding:.45rem 1.3rem;border-radius:2px;font-weight:600;font-family:'Noto Serif',serif;position:relative}
.nav-links a.nav-cta::before{content:'';position:absolute;top:3px;right:3px;bottom:3px;left:3px;border:1px solid rgba(255,255,255,.4);pointer-events:none}
.nav-links a.nav-cta:hover{background:#991B1B}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:.4rem}
.burger span{display:block;width:22px;height:1.5px;background:var(--a)}
.mobile-menu{display:none;flex-direction:column;background:var(--bg);border-bottom:1px solid var(--br)}
.mobile-menu.is-open{display:flex}
.mobile-menu a{padding:.8rem 1.5rem;color:var(--tm);font-size:.9rem;font-weight:500;border-bottom:1px solid var(--br)}
.mobile-menu a.nav-cta{color:var(--p);font-weight:700}

/* Paper-fold hero with washi pattern */
.hero{padding:90px 0 70px;position:relative;overflow:hidden;background:var(--bg)}
.hero::before{content:'';position:absolute;inset:0;background-image:
  repeating-linear-gradient(45deg,transparent,transparent 30px,rgba(185,28,28,.03) 30px,rgba(185,28,28,.03) 31px),
  repeating-linear-gradient(-45deg,transparent,transparent 30px,rgba(31,41,55,.02) 30px,rgba(31,41,55,.02) 31px)}
.hero::after{content:'';position:absolute;top:0;left:0;right:0;height:8px;background:repeating-linear-gradient(90deg,var(--p) 0,var(--p) 12px,transparent 12px,transparent 18px)}
.hero-inner{max-width:780px;position:relative;z-index:1}
.badge{display:inline-flex;align-items:center;gap:.4rem;background:#fff;border:1px solid var(--p);color:var(--p);padding:.3rem .9rem;font-size:.78rem;font-weight:600;margin-bottom:1.6rem;letter-spacing:.05em;position:relative}
.badge::after{content:'';position:absolute;top:2px;right:2px;bottom:2px;left:2px;border:1px solid var(--p);opacity:.3;pointer-events:none}
h1{font-size:clamp(2.4rem,5.5vw,4rem);color:var(--a);margin-bottom:1.2rem;position:relative}
h1::before{content:'';position:absolute;left:-1.5rem;top:.4rem;bottom:.4rem;width:4px;background:var(--p)}
h1 .acc{color:var(--p);font-style:italic}
.hero-desc{color:var(--tm);font-size:1.05rem;max-width:580px;margin-bottom:2rem;line-height:1.75}
.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-bottom:2.5rem}
.btn{display:inline-block;padding:.7rem 1.8rem;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:'Noto Serif',serif;position:relative}
.btn-primary{background:var(--p);color:#fff;border:2px solid var(--p)}
.btn-primary::before{content:'';position:absolute;top:3px;right:3px;bottom:3px;left:3px;border:1px solid rgba(255,255,255,.4);pointer-events:none}
.btn-primary:hover{background:#991B1B;border-color:#991B1B;transform:translate(-2px,-2px);box-shadow:4px 4px 0 var(--a)}
.btn-ghost{background:transparent;color:var(--a);border:2px solid var(--a)}
.btn-ghost:hover{background:var(--a);color:var(--bg)}
.btn-gold{background:var(--a);color:var(--bg);border:2px solid var(--a)}
.btn-gold:hover{background:var(--p);border-color:var(--p)}
.stats{display:flex;gap:2.5rem;padding-top:1.5rem;border-top:1px solid var(--br)}
.stat{display:flex;flex-direction:column}
.stat strong{font-family:'Noto Serif',serif;font-size:1.7rem;color:var(--p);font-weight:700}
.stat span{font-size:.78rem;color:var(--tm);font-weight:500}

section{padding:80px 0;position:relative}
.alt{background:var(--bg2)}
.section-head{margin-bottom:3rem}
.section-head.center{text-align:center}
.eyebrow{display:inline-block;color:var(--p);font-size:.78rem;font-weight:600;letter-spacing:.15em;margin-bottom:.7rem;border-bottom:1px solid var(--p);padding-bottom:.2rem;text-transform:uppercase}
h2{font-size:clamp(1.7rem,3.2vw,2.6rem);margin-bottom:.7rem;color:var(--a)}
h2 .acc{color:var(--p);font-style:italic}

/* Paper card with corner crease */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.feature-card{background:var(--cb);padding:1.8rem;position:relative;border:1px solid var(--br);transition:transform .25s,box-shadow .25s}
.feature-card::before{content:'';position:absolute;top:0;right:0;width:24px;height:24px;background:linear-gradient(225deg,var(--bg2) 50%,transparent 50%)}
.feature-card::after{content:'';position:absolute;top:0;right:0;width:24px;height:24px;border-left:1px solid var(--br);border-bottom:1px solid var(--br);transform:translate(0,0);clip-path:polygon(100% 0,0 100%,100% 100%)}
.feature-card:hover{transform:translate(-3px,-3px);box-shadow:6px 6px 0 var(--br)}
.f-icon{font-family:'Noto Serif',serif;font-size:2rem;font-weight:700;color:var(--p);display:inline-block;margin-bottom:.8rem;border-bottom:2px solid var(--p);padding-bottom:.2rem;font-style:italic}
.feature-card h3{font-size:1.05rem;margin-bottom:.5rem;color:var(--a)}
.feature-card p{font-size:.88rem;color:var(--tm);line-height:1.7}

.platforms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.platform-card{background:var(--cb);padding:1.4rem;text-align:left;border:1px solid var(--br);text-decoration:none;display:flex;align-items:center;gap:1rem;transition:all .25s;position:relative}
.platform-card::before{content:'';position:absolute;top:0;left:0;width:0;height:100%;background:var(--p);transition:width .3s}
.platform-card:hover{border-color:var(--p);padding-left:1.6rem}
.platform-card:hover::before{width:4px}
.platform-icon{width:44px;height:44px;background:var(--p);color:var(--bg);display:flex;align-items:center;justify-content:center;font-family:'Noto Serif',serif;font-weight:700;font-size:.9rem;flex-shrink:0;position:relative}
.platform-icon::after{content:'';position:absolute;top:2px;right:2px;bottom:2px;left:2px;border:1px solid rgba(255,255,255,.3)}
.platform-card h3{font-size:.95rem;font-weight:700;color:var(--a);margin-bottom:.15rem;font-family:'Noto Serif',serif}
.platform-card p{font-size:.8rem;color:var(--tm)}

.cta-banner{background:var(--a);padding:4rem 2rem;text-align:center;position:relative;overflow:hidden}
.cta-banner::before{content:'';position:absolute;top:8px;left:8px;right:8px;bottom:8px;border:1px solid rgba(254,243,199,.25);pointer-events:none}
.cta-banner::after{content:'';position:absolute;top:0;left:0;right:0;height:6px;background:repeating-linear-gradient(90deg,var(--p) 0,var(--p) 12px,transparent 12px,transparent 18px)}
.cta-banner h2{color:var(--bg);margin-bottom:.8rem;position:relative}
.cta-banner h2 .acc{color:var(--bg2)}
.cta-banner p{color:rgba(254,248,231,.75);margin-bottom:2rem;font-size:1rem;position:relative}
.cta-banner .btn{position:relative}

.faq-list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:.6rem}
.faq-item{background:var(--cb);border:1px solid var(--br);overflow:hidden;transition:border-color .25s,transform .25s,box-shadow .25s}
.faq-item.is-open{border-color:var(--p)}
.faq-q{padding:1.1rem 1.5rem;cursor:pointer;font-family:'Noto Serif',serif;font-weight:700;font-size:.98rem;display:flex;justify-content:space-between;align-items:center;color:var(--a);gap:.5rem}
.faq-q::after{content:'＋';color:var(--p);font-size:1rem;transition:transform .25s;flex-shrink:0}
.faq-item.is-open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s}
.faq-a p{padding:0 1.5rem 1.1rem;color:var(--tm);font-size:.89rem;line-height:1.75}

.site-footer{background:var(--a);padding:3rem 0 1.5rem;position:relative}
.site-footer::before{content:'';position:absolute;top:0;left:0;right:0;height:6px;background:repeating-linear-gradient(90deg,var(--p) 0,var(--p) 12px,transparent 12px,transparent 18px)}
.footer-row{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1.5rem;margin-bottom:1.8rem}
.footer-brand{display:flex;align-items:center;gap:.6rem;font-family:'Noto Serif',serif;font-weight:700;font-size:1.3rem;color:var(--bg)}
.footer-brand img{width:30px;height:30px}
.footer-brand .em{color:var(--p)}
.footer-nav{display:flex;gap:2rem;list-style:none}
.footer-nav a{font-size:.85rem;color:rgba(254,248,231,.5);font-weight:500;transition:color .2s}
.footer-nav a:hover{color:var(--bg2)}
.footer-bottom{border-top:1px solid rgba(254,243,199,.12);padding-top:1.3rem;display:flex;justify-content:space-between;font-size:.78rem;color:rgba(254,243,199,.35)}

.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s,transform .6s}
.reveal.in{opacity:1;transform:none}

@media(max-width:900px){.features-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.nav-links{display:none}.burger{display:flex}.platforms-grid{grid-template-columns:1fr 1fr}.stats{gap:1.5rem}h1::before{left:-1rem;width:3px}}
@media(max-width:480px){.features-grid,.platforms-grid{grid-template-columns:1fr}.stats{gap:1rem;flex-wrap:wrap}h1::before{display:none}}