/* OWS Common Styles — Extracted from main LP design system */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --color-deep:#0d1117;
  --color-primary:#1a2332;
  --color-secondary:#2a3a4e;
  --color-accent:#2680c2;
  --color-accent-light:#4da3e0;
  --color-cream:#f7f8fa;
  --color-surface:#ffffff;
  --color-text:#1a1f2e;
  --color-text-muted:#5a6678;
  --color-border:#e2e6ec;
  --color-gold:#c9a962;
  --color-green:#2d9d78;
  --color-green-light:#3db88c;
  --font-display:'Sora','Noto Sans JP',sans-serif;
  --font-serif:'Cormorant Garamond',serif;
  --font-body:'Noto Sans JP',sans-serif;
  --text-hero:clamp(1.8rem,4vw,2.8rem);
  --text-h1:clamp(1.8rem,3.5vw,2.8rem);
  --text-h2:clamp(1.3rem,2.5vw,1.8rem);
  --text-h3:1.2rem;
  --text-large:1.1rem;
  --text-base:0.95rem;
  --text-small:0.85rem;
  --text-xs:0.75rem;
  --section-pad:clamp(80px,10vw,140px);
  --content-max:1120px;
}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);font-weight:400;line-height:1.8;color:var(--color-text);background:var(--color-cream);letter-spacing:0.02em;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{max-width:var(--content-max);margin:0 auto;padding:0 clamp(24px,4vw,48px)}
.section-label{font-family:var(--font-display);font-size:var(--text-xs);font-weight:600;letter-spacing:0.15em;text-transform:uppercase;color:var(--color-accent);margin-bottom:12px;display:block}
.section-title{font-family:var(--font-display);font-size:var(--text-h1);font-weight:600;line-height:1.3;letter-spacing:0.01em;color:var(--color-primary)}
.section-lead{font-size:var(--text-base);color:var(--color-text-muted);line-height:2;max-width:640px;margin-top:16px}
.accent-line{width:40px;height:2px;background:var(--color-accent);margin:20px 0}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(247,248,250,0.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border);transition:all 0.3s}
.nav-inner{max-width:var(--content-max);margin:0 auto;padding:0 clamp(24px,4vw,48px);display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-logo{height:48px;opacity:0.9;mix-blend-mode:multiply}
.nav-ows{background:var(--color-green);color:#fff !important;padding:10px 24px;font-size:var(--text-small);font-weight:600;letter-spacing:0.06em;transition:all 0.4s;border-radius:4px;display:inline-block;margin-left:8px}
.nav-ows:hover{background:var(--color-green-light);color:#fff !important;transform:translateY(-1px)}
.nav-ows-active{box-shadow:inset 0 -2px 0 rgba(255,255,255,0.5)}
.nav-links{display:flex;gap:28px;list-style:none;align-items:center}
.nav-links a{font-size:var(--text-small);font-weight:500;color:var(--color-text-muted);transition:color 0.3s;letter-spacing:0.04em}
.nav-links a:hover{color:var(--color-accent)}
.nav-cta{background:var(--color-accent);color:#fff !important;padding:10px 24px;font-size:var(--text-small);font-weight:600;letter-spacing:0.06em;transition:all 0.4s;border-radius:4px;display:inline-block}
.nav-cta:hover{background:var(--color-accent-light);color:#fff !important;transform:translateY(-1px)}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.hamburger span{width:22px;height:1.5px;background:var(--color-primary);transition:all 0.3s;display:block}
.mobile-menu{display:none;position:fixed;top:64px;left:0;right:0;background:var(--color-surface);border-bottom:1px solid var(--color-border);padding:20px clamp(24px,4vw,48px);z-index:99;box-shadow:0 4px 20px rgba(0,0,0,0.08)}
.mobile-menu.active{display:block}
.mobile-menu a{display:block;padding:14px 0;font-size:var(--text-base);color:var(--color-text);border-bottom:1px solid var(--color-border);font-weight:500}
.mobile-menu a:last-child{border-bottom:none}

/* BUTTONS */
.btn-primary{background:var(--color-accent);color:#fff;padding:18px 44px;font-family:var(--font-display);font-size:var(--text-small);font-weight:500;letter-spacing:0.08em;transition:all 0.4s;display:inline-block;border-radius:4px;text-align:center}
.btn-primary:hover{background:var(--color-accent-light);transform:translateY(-2px)}
.btn-outline{border:1px solid var(--color-border);color:var(--color-text);padding:18px 44px;font-family:var(--font-display);font-size:var(--text-small);font-weight:500;letter-spacing:0.08em;transition:all 0.4s;display:inline-block;border-radius:4px;text-align:center}
.btn-outline:hover{border-color:var(--color-accent);color:var(--color-accent)}
.btn-green{background:var(--color-green);color:#fff;padding:18px 44px;font-family:var(--font-display);font-size:var(--text-small);font-weight:500;letter-spacing:0.08em;transition:all 0.4s;display:inline-block;border-radius:4px;text-align:center}
.btn-green:hover{background:var(--color-green-light);transform:translateY(-2px)}

/* FOOTER */
.footer{padding:40px 0;background:var(--color-deep);color:rgba(255,255,255,0.5)}
.footer-inner{display:flex;align-items:center;justify-content:space-between}
.footer-company{color:rgba(255,255,255,0.8);font-family:var(--font-display);font-weight:500;font-size:var(--text-small);letter-spacing:0.06em;margin-bottom:4px}
.footer-link{font-size:var(--text-xs);color:rgba(255,255,255,0.4);transition:color 0.3s}
.footer-link:hover{color:rgba(255,255,255,0.7)}
.footer-copy{font-size:var(--text-xs);letter-spacing:0.06em}

/* FLOATING CTA */
.floating-cta{position:fixed;bottom:24px;right:24px;z-index:90;opacity:0;transform:translateY(20px);transition:all 0.4s;pointer-events:none}
.floating-cta.visible{opacity:1;transform:translateY(0);pointer-events:auto}
.floating-cta a{display:flex;align-items:center;gap:8px;background:var(--color-accent);color:#fff;padding:16px 28px;border-radius:4px;font-size:var(--text-small);font-weight:600;box-shadow:0 4px 20px rgba(38,128,194,0.3);transition:all 0.3s}
.floating-cta a:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(38,128,194,0.4)}

/* CTA SECTION */
.cta-section{padding:var(--section-pad) 0;background:linear-gradient(135deg,var(--color-deep) 0%,var(--color-primary) 100%);text-align:center}
.cta-section .section-title{color:#fff}
.cta-section .section-lead{color:rgba(255,255,255,0.65);margin:16px auto 0}
.cta-buttons{display:flex;gap:16px;justify-content:center;margin-top:40px;flex-wrap:wrap}

/* FADE IN ANIMATION */
.fade-in{opacity:0;transform:translateY(24px);transition:opacity 0.7s,transform 0.7s}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* ARTICLE PAGE STYLES */
.article-hero{padding-top:clamp(100px,14vw,140px);padding-bottom:clamp(40px,6vw,60px);background:linear-gradient(135deg,rgba(38,128,194,0.04) 0%,rgba(45,157,120,0.03) 50%,transparent 100%),var(--color-cream)}
.article-hero .container{max-width:800px}
.article-hero .breadcrumb{font-size:var(--text-xs);color:var(--color-text-muted);margin-bottom:20px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.article-hero .breadcrumb a{color:var(--color-accent);transition:opacity 0.3s}
.article-hero .breadcrumb a:hover{opacity:0.7}
.article-hero .breadcrumb span{color:var(--color-text-muted)}
.article-hero h1{font-family:var(--font-display);font-size:var(--text-h1);font-weight:700;line-height:1.4;color:var(--color-deep);letter-spacing:-0.01em}
.article-hero .hero-desc{font-size:var(--text-large);color:var(--color-text-muted);line-height:2;margin-top:20px;max-width:680px}

.article-body{padding:clamp(40px,6vw,60px) 0 var(--section-pad)}
.article-body .container{max-width:800px}
.article-body h2{font-family:var(--font-display);font-size:var(--text-h2);font-weight:600;color:var(--color-primary);margin-top:clamp(48px,6vw,64px);margin-bottom:20px;padding-bottom:12px;border-bottom:2px solid var(--color-accent);line-height:1.4}
.article-body h3{font-family:var(--font-display);font-size:var(--text-h3);font-weight:600;color:var(--color-primary);margin-top:32px;margin-bottom:12px;line-height:1.4}
.article-body p{font-size:var(--text-base);line-height:2;color:var(--color-text);margin-bottom:20px}
.article-body ul,.article-body ol{margin:0 0 20px 24px;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{font-size:var(--text-base);line-height:2;color:var(--color-text);margin-bottom:8px}
.article-body strong{color:var(--color-primary);font-weight:600}

/* DATA TABLE */
.data-table{width:100%;border-collapse:collapse;margin:24px 0 32px;font-size:var(--text-small)}
.data-table th{background:var(--color-primary);color:#fff;padding:14px 16px;text-align:left;font-weight:500;font-size:var(--text-xs);letter-spacing:0.04em;white-space:nowrap}
.data-table td{padding:14px 16px;border-bottom:1px solid var(--color-border);vertical-align:top;line-height:1.7}
.data-table tr:nth-child(even){background:var(--color-cream)}
.data-table tr:hover{background:rgba(38,128,194,0.04)}

/* INFO BOX */
.info-box{background:var(--color-surface);border:1px solid var(--color-border);border-left:4px solid var(--color-accent);padding:24px 28px;margin:24px 0 32px;border-radius:0 8px 8px 0}
.info-box.green{border-left-color:var(--color-green)}
.info-box.warning{border-left-color:var(--color-gold);background:#fffdf5}
.info-box h4{font-family:var(--font-display);font-size:var(--text-base);font-weight:600;color:var(--color-primary);margin-bottom:8px}
.info-box p{font-size:var(--text-small);margin-bottom:0}
.info-box ul{margin:8px 0 0 20px;list-style:disc}
.info-box li{font-size:var(--text-small);line-height:1.8;margin-bottom:4px}

/* STAT CARD */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:24px 0 32px}
.stat-card{background:var(--color-surface);border:1px solid var(--color-border);padding:28px 20px;text-align:center;border-radius:8px}
.stat-number{font-family:var(--font-serif);font-size:clamp(2rem,4vw,2.8rem);font-weight:400;color:var(--color-accent);line-height:1}
.stat-number.green{color:var(--color-green)}
.stat-unit{font-size:var(--text-small);color:var(--color-text-muted);margin-top:4px}
.stat-desc{font-size:var(--text-xs);color:var(--color-text-muted);margin-top:8px;line-height:1.6}

/* STEP LIST */
.step-list{counter-reset:step;margin:24px 0 32px}
.step-item{display:flex;gap:20px;padding:24px 0;border-bottom:1px solid var(--color-border)}
.step-item:last-child{border-bottom:none}
.step-num{counter-increment:step;flex-shrink:0;width:40px;height:40px;background:var(--color-accent);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-size:1.1rem;font-weight:500}
.step-item h4{font-family:var(--font-display);font-size:var(--text-base);font-weight:600;color:var(--color-primary);margin-bottom:6px}
.step-item p{font-size:var(--text-small);color:var(--color-text-muted);margin-bottom:0}

/* RELATED PAGES */
.related-pages{padding:clamp(40px,6vw,60px) 0;background:var(--color-surface);border-top:1px solid var(--color-border)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.related-card{border:1px solid var(--color-border);border-radius:8px;padding:28px 24px;transition:all 0.3s;display:block}
.related-card:hover{border-color:var(--color-accent);transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,0,0,0.06)}
.related-card .card-label{font-size:var(--text-xs);color:var(--color-accent);font-weight:600;letter-spacing:0.1em;text-transform:uppercase;margin-bottom:8px}
.related-card h3{font-family:var(--font-display);font-size:var(--text-base);font-weight:600;color:var(--color-primary);line-height:1.5;margin-bottom:8px}
.related-card p{font-size:var(--text-small);color:var(--color-text-muted);line-height:1.7}

/* RESPONSIVE */
@media(max-width:1024px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-links{display:none}
  .hamburger{display:flex}
  .stat-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .data-table{font-size:var(--text-xs)}
  .data-table th,.data-table td{padding:10px 12px}
  .footer-inner{flex-direction:column;gap:16px;text-align:center}
}