.brookbreath{--bb-grad-start:#667eea;--bb-grad-end:#764ba2;--bb-text:#1f2937;--bb-muted:#6b7280;--bb-bg:#f9fafb;--bb-surface:#fff;--bb-border:rgba(15,23,42,.08);--bb-shadow:0 20px 60px rgba(15,23,42,.08);--bb-radius:18px;color:var(--bb-text);background:var(--bb-bg);min-height:100vh}.brookbreath .bb-shell{min-height:100vh;display:flex;flex-direction:column}.brookbreath .bb-container{width:min(1120px,100%);margin:0 auto;padding:0 20px}.brookbreath .bb-header{background:linear-gradient(135deg,var(--bb-grad-start) 0,var(--bb-grad-end) 100%);color:#fff}.brookbreath .bb-header-inner{display:flex;align-items:center;justify-content:space-between;padding:20px 0;gap:20px}.brookbreath .bb-brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1.25rem}.brookbreath .bb-brand img{border-radius:12px}.brookbreath .bb-nav{display:flex;align-items:center;gap:16px}.brookbreath .bb-nav-links{display:flex;align-items:center;gap:22px}.brookbreath .bb-nav a{color:hsla(0,0%,100%,.85);text-decoration:none;font-weight:500;transition:color .2s ease}.brookbreath .bb-nav a.bb-active,.brookbreath .bb-nav a:hover{color:#fff}.brookbreath .bb-lang{font-size:.85rem}.brookbreath .bb-menu-toggle{display:none;border:none;background:transparent;color:#fff;cursor:pointer}.brookbreath .bb-mobile-menu{display:none;padding:12px 0 18px;border-top:1px solid hsla(0,0%,100%,.2)}.brookbreath .bb-mobile-menu a{display:block;padding:8px 0;color:hsla(0,0%,100%,.9);text-decoration:none}.brookbreath .bb-mobile-menu[data-open=true]{display:block}.brookbreath .bb-main{flex:1}.brookbreath .bb-hero{padding:64px 0 72px;background:linear-gradient(180deg,var(--bb-bg) 0,#fff 100%);text-align:center}.brookbreath .bb-hero-title{font-size:clamp(2.25rem,4vw,3.2rem);font-weight:700;margin-bottom:16px}.brookbreath .bb-gradient-text{background:linear-gradient(135deg,var(--bb-grad-start) 0,var(--bb-grad-end) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}.brookbreath .bb-hero-text{font-size:1.15rem;color:var(--bb-muted);max-width:640px;margin:0 auto 28px;line-height:1.7}.brookbreath .bb-store-button{display:inline-flex;align-items:center;gap:12px;padding:14px 24px;border-radius:14px;background:#111827;color:#fff;text-decoration:none;font-weight:600;transition:transform .2s ease,box-shadow .2s ease;box-shadow:0 16px 30px rgba(17,24,39,.25)}.brookbreath .bb-store-button:hover{transform:translateY(-2px)}.brookbreath .bb-section{padding:60px 0;background:#fff}.brookbreath .bb-section-title{font-size:clamp(1.8rem,3vw,2.4rem);font-weight:700;margin-bottom:12px;text-align:center}.brookbreath .bb-section-subtitle{text-align:center;color:var(--bb-muted);margin-bottom:32px}.brookbreath .bb-grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.brookbreath .bb-card{background:var(--bb-bg);border-radius:var(--bb-radius);padding:28px;border:1px solid var(--bb-border);box-shadow:var(--bb-shadow)}.brookbreath .bb-card h3{font-size:1.2rem;margin-bottom:10px}.brookbreath .bb-card p{color:var(--bb-muted);line-height:1.6}.brookbreath .bb-doc{padding:48px 0 64px}.brookbreath .bb-doc-inner{background:var(--bb-surface);border-radius:20px;padding:clamp(24px,4vw,48px);box-shadow:var(--bb-shadow);border:1px solid var(--bb-border)}.brookbreath .bb-doc h1{font-size:clamp(2rem,3vw,2.6rem);margin-bottom:8px}.brookbreath .bb-doc-meta{color:var(--bb-muted);font-size:.95rem;margin-bottom:24px}.brookbreath .bb-doc-section{margin-bottom:28px}.brookbreath .bb-doc-section h2{font-size:1.2rem;margin-bottom:10px}.brookbreath .bb-doc-section p{color:var(--bb-muted);line-height:1.7}.brookbreath .bb-doc-section a{color:#2563eb}.brookbreath .bb-support-text{color:var(--bb-muted);margin-bottom:24px}.brookbreath .bb-form{display:grid;gap:20px}.brookbreath .bb-field label{display:block;margin-bottom:8px;font-weight:600;color:#374151}.brookbreath .bb-input,.brookbreath .bb-textarea{width:100%;padding:12px 14px;border-radius:12px;border:1px solid rgba(148,163,184,.6);font-size:1rem;transition:border .2s ease,box-shadow .2s ease}.brookbreath .bb-input:focus,.brookbreath .bb-textarea:focus{outline:none;border-color:#8b5cf6;box-shadow:0 0 0 4px rgba(139,92,246,.2)}.brookbreath .bb-textarea{min-height:140px;resize:vertical}.brookbreath .bb-submit{justify-self:start;padding:12px 24px;border-radius:12px;border:none;background:linear-gradient(135deg,#7c3aed,#6d28d9);color:#fff;font-weight:600;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.brookbreath .bb-submit:hover{transform:translateY(-1px);box-shadow:0 10px 20px rgba(124,58,237,.25)}.brookbreath .bb-submit:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}.brookbreath .bb-thanks{margin-top:24px;padding:18px 20px;border-radius:14px;background:#ecfdf5;border:1px solid #bbf7d0;color:#065f46}.brookbreath .bb-footer{padding:24px 0;background:#f3f4f6;color:var(--bb-muted);font-size:.9rem}.brookbreath .bb-footer-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px}.brookbreath .bb-footer-links{display:flex;gap:18px}.brookbreath .bb-footer-links a{color:var(--bb-muted);text-decoration:none}.brookbreath .bb-footer-links a:hover{color:#111827}.brookbreath .lang-ja{font-family:var(--bb-font-ja),var(--bb-font-en),sans-serif}.brookbreath .lang-en{font-family:var(--bb-font-en),sans-serif}@media (max-width:820px){.brookbreath .bb-nav-links{display:none}.brookbreath .bb-menu-toggle{display:inline-flex}.brookbreath .bb-footer-inner{flex-direction:column;align-items:flex-start}}