:root{
  --red:#E8001C;
  --red-deep:#B80016;
  --beige:#F6EFE4;
  --cream:#FCF8F1;
  --ink:#2B1B1B;
  --muted:#6E5E59;
  --line:#E6D9C7;
  --radius:24px;
  --font:'Jost',system-ui,sans-serif;
  --font-jp:'Zen Maru Gothic','Noto Sans JP',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--beige);color:var(--ink);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{width:min(1160px,100% - 40px);margin-inline:auto}
section{padding:96px 0}
.jp{font-family:var(--font-jp)}

/* type */
h1,h2,h3{font-weight:500;line-height:1.1;letter-spacing:-.01em}
h1{font-size:clamp(2.5rem,5.6vw,4.6rem)}
h2{font-size:clamp(2rem,4vw,3.1rem)}
h3{font-size:1.35rem}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.82rem;letter-spacing:.22em;text-transform:uppercase;color:var(--red);font-weight:500;margin-bottom:18px}
.eyebrow::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--red)}
.lead{font-size:1.15rem;color:var(--muted);max-width:56ch}
.sec-head{max-width:720px;margin-bottom:56px}
.sec-head p{margin-top:16px}
em.red{font-style:normal;color:var(--red)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 26px;border-radius:999px;font-weight:500;font-size:1rem;border:1.5px solid transparent;transition:transform .25s,box-shadow .25s,background .25s,color .25s;cursor:pointer}
.btn:hover{transform:translateY(-2px)}
.btn-wa{background:var(--red);color:#fff;box-shadow:0 10px 26px -8px rgba(232,0,28,.55)}
.btn-wa:hover{background:var(--red-deep);box-shadow:0 14px 30px -8px rgba(232,0,28,.6)}
.btn-ghost{border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--cream)}
.btn svg{width:20px;height:20px;fill:currentColor}
.btn-icon{width:56px;height:56px;padding:0;justify-content:center}
.btn-icon svg{width:28px;height:28px}
.btn-light{background:#fff;color:var(--red)}
.btn-light:hover{background:var(--cream)}
.btn-outline-light{border-color:rgba(255,255,255,.7);color:#fff}
.btn-outline-light:hover{background:#fff;color:var(--red)}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(246,239,228,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.scrolled{border-color:var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px}
.brand-dot{width:38px;height:38px;border-radius:50%;background:var(--red)}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text b{font-weight:500;font-size:1.15rem}
.brand-text span{font-size:.66rem;letter-spacing:.3em;color:var(--muted)}
.nav-links{display:flex;gap:30px;font-size:.96rem;color:var(--muted)}
.nav-links a:hover{color:var(--red)}
.nav .btn{padding:11px 20px;font-size:.92rem}

/* hero */
.hero{padding:56px 0 110px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero h1 em{font-style:normal;color:var(--red)}
.hero .lead{margin:24px 0 34px}
.cta-row{display:flex;flex-wrap:wrap;gap:14px}
.chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:38px}
.chip{display:flex;align-items:center;gap:10px;padding:10px 18px;border:1px solid var(--line);background:var(--cream);border-radius:999px;font-size:.92rem}
.chip b{color:var(--red);font-weight:600}
.hero-art{position:relative;aspect-ratio:1;max-width:520px;margin-left:auto;width:100%}
.sun{position:absolute;inset:11%;border-radius:50%;background:radial-gradient(circle at 32% 28%,#FF2A3F 0,var(--red) 55%,#CF0019 100%);box-shadow:0 40px 80px -30px rgba(232,0,28,.55);animation:breathe 7s ease-in-out infinite}
.sun-text{position:absolute;left:23%;bottom:19%;color:#fff;line-height:1.05}
.sun-text b{display:block;font-weight:400;font-size:clamp(1.9rem,4.4vw,3.1rem);letter-spacing:-.01em}
.sun-text span{display:block;font-size:clamp(.8rem,1.7vw,1.15rem);letter-spacing:.34em;margin-top:6px;font-weight:300}
.ring{position:absolute;inset:0;border-radius:50%;border:1px dashed rgba(43,27,27,.2);animation:spin 60s linear infinite}
.ring.r2{inset:-6%;animation-duration:90s;animation-direction:reverse;border-color:rgba(232,0,28,.25)}
.float{position:absolute;font-family:var(--font-jp);font-weight:500;color:var(--ink);background:var(--cream);border:1px solid var(--line);width:58px;height:58px;border-radius:50%;display:grid;place-items:center;font-size:1.6rem;box-shadow:0 10px 24px -12px rgba(43,27,27,.35);animation:bob 6s ease-in-out infinite}
.float.red{background:var(--red);color:#fff;border-color:var(--red)}
.float:nth-child(4){top:2%;left:30%;animation-delay:0s}
.float:nth-child(5){top:16%;right:2%;animation-delay:-1.2s}
.float:nth-child(6){bottom:22%;right:-2%;animation-delay:-2.4s}
.float:nth-child(7){bottom:2%;left:24%;animation-delay:-3.6s}
.float:nth-child(8){top:42%;left:-3%;animation-delay:-4.8s}
.float:nth-child(9){top:8%;left:2%;animation-delay:-.6s;width:48px;height:48px;font-size:1.3rem}
@keyframes bob{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-14px) rotate(3deg)}}
@keyframes breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.025)}}
@keyframes spin{to{transform:rotate(360deg)}}

/* marquee */
.marquee{background:var(--ink);color:var(--cream);overflow:hidden;padding:18px 0;font-family:var(--font-jp);font-size:1.4rem}
.marquee-track{display:flex;gap:56px;width:max-content;animation:slide 38s linear infinite}
.marquee-track span{display:flex;align-items:center;gap:56px;white-space:nowrap}
.marquee-track span::after{content:"●";color:var(--red);font-size:.55rem}
@keyframes slide{to{transform:translateX(-50%)}}

/* scripts */
.scripts{background:var(--cream)}
.word-demo{margin:0 auto 56px;text-align:center}
.word-box{display:inline-flex;align-items:center;gap:22px;padding:28px 44px;border-radius:var(--radius);background:var(--beige);border:1px solid var(--line)}
.word-main{font-family:var(--font-jp);font-size:clamp(3rem,8vw,5.5rem);min-width:4.6ch;transition:opacity .4s,transform .4s,color .4s}
.word-main.swap{opacity:0;transform:translateY(10px)}
.word-meta{text-align:left;min-width:130px}
.word-meta b{display:block;font-weight:500;color:var(--red);font-size:1.15rem}
.word-meta span{font-size:.9rem;color:var(--muted)}
.word-note{margin-top:14px;color:var(--muted);font-size:.95rem}
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--beige);border:1px solid var(--line);border-radius:var(--radius);padding:34px;transition:transform .3s,box-shadow .3s,border-color .3s}
.card:hover{transform:translateY(-6px);box-shadow:0 24px 40px -26px rgba(43,27,27,.4);border-color:var(--red)}
.script-char{font-family:var(--font-jp);font-size:4.2rem;line-height:1;color:var(--red);height:84px;transition:opacity .35s}
.card h3{margin:14px 0 8px}
.card p{color:var(--muted);font-size:.98rem}
.tag{display:inline-block;margin-top:16px;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;padding:5px 12px;border-radius:999px;background:var(--cream);border:1px solid var(--line);color:var(--muted)}

/* why */
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.big-num{font-size:clamp(5rem,13vw,10rem);font-weight:300;line-height:.9;color:var(--red);letter-spacing:-.04em}
.big-num small{font-size:.35em;vertical-align:top;margin-left:4px}
.num-cap{margin-top:14px;font-size:1.2rem;color:var(--muted);max-width:30ch}
.points{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.point{padding:26px;border-radius:var(--radius);background:var(--cream);border:1px solid var(--line)}
.point .ico{width:44px;height:44px;border-radius:50%;background:var(--red);color:#fff;display:grid;place-items:center;font-family:var(--font-jp);font-size:1.15rem;margin-bottom:16px}
.point h3{font-size:1.15rem;margin-bottom:6px}
.point p{color:var(--muted);font-size:.95rem}

/* steps */
.steps{background:var(--ink);color:var(--cream)}
.steps .eyebrow{color:#ff6b7b}
.steps .eyebrow::before{background:#ff6b7b}
.steps .lead{color:#cdbfb4}
.step-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step-row::before{content:"";position:absolute;top:34px;left:6%;right:6%;border-top:1.5px dashed rgba(255,255,255,.25)}
.step{position:relative;text-align:left}
.step-n{width:68px;height:68px;border-radius:50%;background:var(--red);display:grid;place-items:center;font-size:1.5rem;font-weight:500;color:#fff;margin-bottom:22px;position:relative}
.step h3{margin-bottom:8px}
.step p{color:#cdbfb4;font-size:.96rem}

/* materials */
.mat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.mat{padding:30px;border-radius:var(--radius);background:var(--cream);border:1px solid var(--line)}
.mat .lvl{font-size:.8rem;letter-spacing:.2em;color:var(--red);font-weight:500}
.mat h3{margin:10px 0 14px}
.mat ul{list-style:none}
.mat li{padding:9px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.97rem;display:flex;gap:10px}
.mat li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--red);margin-top:10px;flex:none}
.fine{margin-top:22px;color:var(--muted);font-size:.9rem}

/* exams */
.exams{background:var(--cream)}
.exam-cols{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-bottom:34px}
.exam{padding:34px;border-radius:var(--radius);background:var(--beige);border:1px solid var(--line)}
.exam h3{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.exam h3 span{font-family:var(--font-jp);font-size:.95rem;color:var(--red);font-weight:500}
.exam p{color:var(--muted)}
.exam ul{margin-top:16px;list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.exam li{font-size:.85rem;padding:6px 14px;border-radius:999px;background:var(--cream);border:1px solid var(--line)}
.lvl-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--beige)}
.lvl-row{display:grid;grid-template-columns:90px 160px 1fr;gap:20px;padding:22px 30px;border-top:1px solid var(--line);align-items:center}
.lvl-row:first-child{border-top:0}
.lvl-row .badge{width:58px;height:58px;border-radius:50%;background:var(--red);color:#fff;display:grid;place-items:center;font-weight:500;font-size:1.1rem}
.lvl-row b{font-weight:500}
.lvl-row span{color:var(--muted);font-size:.97rem}

/* levels */
.level-card{display:flex;flex-direction:column}
.level-card .big{font-size:3.2rem;font-weight:400;color:var(--red);line-height:1}
.level-card ul{margin:18px 0 26px;list-style:none;flex:1}
.level-card li{padding:8px 0;color:var(--muted);font-size:.96rem;display:flex;gap:10px}
.level-card li::before{content:"✓";color:var(--red);font-weight:600}
.level-card .btn{justify-content:center}
.level-card.featured{background:var(--ink);color:var(--cream);border-color:var(--ink)}
.level-card.featured p,.level-card.featured li{color:#cdbfb4}
.level-card.featured .tag{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);color:#e6d9c7}

/* faq */
.faq{background:var(--cream)}
.faq-list{max-width:820px}
details{border-top:1px solid var(--line);padding:22px 0}
details:last-child{border-bottom:1px solid var(--line)}
summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:1.2rem;font-weight:500}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";width:36px;height:36px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;font-size:1.4rem;color:var(--red);flex:none;transition:transform .3s,background .3s,color .3s}
details[open] summary::after{transform:rotate(45deg);background:var(--red);color:#fff;border-color:var(--red)}
details p{margin-top:12px;color:var(--muted);max-width:62ch}

/* final cta */
.final{padding:0 0 96px;background:var(--cream)}
.final-box{position:relative;overflow:hidden;background:var(--red);color:#fff;border-radius:36px;padding:80px 40px;text-align:center}
.final-box::before,.final-box::after{content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.08)}
.final-box::before{width:420px;height:420px;left:-120px;top:-160px}
.final-box::after{width:300px;height:300px;right:-80px;bottom:-130px}
.final-box>*{position:relative}
.final-box h2{max-width:16ch;margin:0 auto 18px}
.final-box p{opacity:.9;max-width:46ch;margin:0 auto 34px;font-size:1.12rem}
.final-box .cta-row{justify-content:center}

/* footer */
footer{background:var(--ink);color:#cdbfb4;padding:56px 0 34px}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:30px}
footer .brand-text b{color:var(--cream)}
footer .brand-text span{color:#9d8e85}
.foot-links{display:flex;flex-direction:column;gap:8px;font-size:.96rem}
.foot-links a:hover{color:#fff}
.copy{margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:.85rem;color:#9d8e85}

/* floating wa */
.fab{position:fixed;right:20px;bottom:20px;z-index:60;width:62px;height:62px;border-radius:50%;background:#25D366;display:grid;place-items:center;box-shadow:0 12px 28px -8px rgba(0,0,0,.4);transition:transform .25s}
.fab:hover{transform:scale(1.08)}
.fab svg{width:32px;height:32px;fill:#fff}
.fab::before{content:"";position:absolute;inset:0;border-radius:50%;background:#25D366;animation:pulse 2.4s ease-out infinite;z-index:-1}
@keyframes pulse{0%{transform:scale(1);opacity:.55}100%{transform:scale(1.7);opacity:0}}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}.reveal.d3{transition-delay:.3s}

/* responsive */
@media (max-width:960px){
  section{padding:72px 0}
  .nav-links{display:none}
  .hero-grid,.why-grid,.exam-cols{grid-template-columns:1fr}
  .hero-art{margin:20px auto 0;max-width:400px}
  .cards3,.mat-grid{grid-template-columns:1fr}
  .step-row{grid-template-columns:1fr 1fr;gap:34px 22px}
  .step-row::before{display:none}
}
@media (max-width:620px){
  body{font-size:16px}
  .wrap{width:calc(100% - 32px)}
  .nav .btn span.long{display:none}
  .points{grid-template-columns:1fr}
  .step-row{grid-template-columns:1fr}
  .lvl-row{grid-template-columns:58px 1fr;gap:6px 16px;padding:20px}
  .lvl-row span{grid-column:1/-1}
  .word-box{padding:22px 24px;gap:14px;flex-direction:column}
  .word-meta{text-align:center}
  .final-box{padding:56px 22px;border-radius:28px}
  .cta-row .btn{width:100%;justify-content:center}
  .float{width:46px;height:46px;font-size:1.25rem}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ---- blog ---- */
.wrap.narrow{width:min(760px,100% - 40px)}
.blog-hero{padding:72px 0 24px}
.blog-hero h1{max-width:18ch;margin-bottom:18px}
.blog-list{padding:40px 0 72px}
.featured{display:grid;grid-template-columns:.8fr 1.2fr;gap:0;border:1px solid var(--line);border-radius:32px;overflow:hidden;background:var(--cream);margin-bottom:28px;transition:transform .3s,box-shadow .3s}
.featured:hover{transform:translateY(-4px);box-shadow:0 28px 44px -28px rgba(43,27,27,.4)}
.feat-art{background:var(--red);color:#fff;display:grid;place-items:center;font-size:clamp(6rem,14vw,10rem);min-height:260px;position:relative;overflow:hidden}
.feat-art::after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;background:rgba(255,255,255,.1);right:-90px;bottom:-110px}
.feat-body{padding:44px}
.feat-body h2{font-size:clamp(1.7rem,3vw,2.4rem);margin:14px 0}
.feat-body p{color:var(--muted)}
.read{display:inline-block;margin-top:18px;color:var(--red);font-weight:500}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-card{display:flex;flex-direction:column;background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s}
.post-card:hover{transform:translateY(-6px);box-shadow:0 24px 40px -26px rgba(43,27,27,.4);border-color:var(--red)}
.post-thumb{background:var(--ink);color:var(--cream);display:grid;place-items:center;font-size:4.4rem;height:150px}
.post-card:nth-child(2) .post-thumb{background:var(--red)}
.post-body{padding:24px;display:flex;flex-direction:column;flex:1}
.post-body h3{margin:12px 0 10px;font-size:1.2rem;line-height:1.25}
.post-body p{color:var(--muted);font-size:.95rem;flex:1}
.post-body .tag{align-self:flex-start;margin-top:0}
.article{padding:56px 0 24px}
.back{display:inline-block;color:var(--muted);margin-bottom:26px}
.back:hover{color:var(--red)}
.article h1{font-size:clamp(2rem,4.6vw,3.2rem);margin-bottom:16px}
.meta{color:var(--muted);font-size:.95rem;margin-bottom:36px;padding-bottom:28px;border-bottom:1px solid var(--line)}
.prose{font-size:1.1rem;line-height:1.75}
.prose .lead-in{font-size:1.25rem;color:var(--muted);margin-bottom:12px}
.prose h2{font-size:1.7rem;margin:44px 0 14px}
.prose p{margin-bottom:16px}
.prose ul,.prose ol{margin:0 0 18px 1.3em}
.prose li{margin-bottom:8px}
.prose a{color:var(--red);text-decoration:underline;text-underline-offset:3px}
.prose sup a{text-decoration:none;font-weight:500;padding:0 1px}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:28px 0}
.stat{background:var(--cream);border:1px solid var(--line);border-radius:20px;padding:22px}
.stat b{display:block;font-size:2.2rem;font-weight:500;color:var(--red);line-height:1.1}
.stat span{font-size:.9rem;color:var(--muted)}
.prose .lvl-table{margin:24px 0}
.prose .lvl-row b{font-size:1rem}
.sources{margin:48px 0 28px;padding:26px;border-radius:var(--radius);background:var(--cream);border:1px solid var(--line)}
.sources h3{font-size:1.1rem;margin-bottom:10px}
.sources ol{margin-left:1.2em;font-size:.95rem}
.sources a{color:var(--red);text-decoration:underline;text-underline-offset:3px}
.sources .fine{margin-top:14px}
.cta-box{background:var(--red);color:#fff;border-radius:28px;padding:44px 32px;text-align:center}
.cta-box h2{font-size:1.9rem;margin-bottom:10px}
.cta-box p{opacity:.92;margin-bottom:24px}
.cta-box .cta-row{justify-content:center}
.more{padding:64px 0 24px}
.more h2{margin-bottom:26px;font-size:1.8rem}
.home-blog{background:var(--beige)}
.home-blog .post-grid{margin-top:0}
.home-blog .all{margin-top:30px;text-align:center}
@media (max-width:960px){
  .featured{grid-template-columns:1fr}
  .feat-body{padding:30px}
  .post-grid{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr}
}