:root{--color-primary: #1e3a8a;--color-primary-dark: #0f172a;--color-primary-light: #3b82f6;--color-primary-bg: #eff6ff;--color-accent: #f59e0b;--color-accent-dark: #d97706;--color-accent-light: #fef3c7;--color-accent-hover: #ea580c;--color-success: #10b981;--color-success-bg: #ecfdf5;--color-warning: #f59e0b;--color-warning-bg: #fffbeb;--color-danger: #ef4444;--color-danger-bg: #fef2f2;--color-text-main: #1e293b;--color-text-muted: #64748b;--color-text-light: #94a3b8;--color-text-inverse: #ffffff;--color-bg-body: #fcfbf9;--color-bg-card: #ffffff;--color-bg-subtle: #f1f5f9;--color-border: #e2e8f0;--color-border-subtle: #f1f5f9;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans JP", sans-serif;--font-mono: "JetBrains Mono", Consolas, Monaco, monospace;--shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, .05);--shadow-md: 0 4px 12px -1px rgba(15, 23, 42, .08), 0 2px 6px -1px rgba(15, 23, 42, .04);--shadow-lg: 0 10px 25px -3px rgba(15, 23, 42, .1), 0 4px 10px -2px rgba(15, 23, 42, .05);--shadow-hover: 0 16px 32px -4px rgba(15, 23, 42, .12), 0 6px 12px -2px rgba(15, 23, 42, .06);--radius-sm: 6px;--radius-md: 12px;--radius-lg: 18px;--radius-xl: 24px;--radius-full: 9999px;--max-width: 1180px;--content-width: 820px;--header-height: 72px;--transition-fast: .15s ease;--transition-normal: .25s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-sans);font-size:16px;line-height:1.75;color:var(--color-text-main);background-color:var(--color-bg-body);scroll-behavior:smooth;-webkit-font-smoothing:antialiased}body{min-height:100vh;display:flex;flex-direction:column}main{flex:1}a{color:var(--color-primary-light);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary);text-decoration:underline}img,svg{display:block;max-width:100%;height:auto}.container{width:100%;max-width:var(--max-width);margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}.content-container{max-width:var(--content-width);margin-left:auto;margin-right:auto}.site-header{position:sticky;top:0;z-index:100;height:var(--header-height);background:#fffffff2;backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border)}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:100%}.logo-group{display:flex;align-items:center;gap:12px;text-decoration:none!important;flex-shrink:0}.logo-symbol{display:flex;align-items:center;justify-content:center;flex-shrink:0}.logo-symbol svg{box-shadow:0 2px 6px #1e3a8a33;border-radius:7px}.logo-text{display:flex;flex-direction:column}.logo-title-wrap{display:flex;align-items:center;gap:8px}.logo-title{font-size:18px;font-weight:800;color:var(--color-primary-dark);letter-spacing:-.02em;line-height:1.2}.logo-tag{display:inline-block;font-size:10.5px;font-weight:800;color:#1e3a8a;background:#e0e7ff;padding:1px 6px;border-radius:4px;border:1px solid #c7d2fe}.logo-sub{font-size:10.5px;font-weight:600;color:var(--color-text-muted);margin-top:2px}.desktop-nav{display:flex;align-items:center}.nav-links{display:flex;align-items:center;gap:18px;list-style:none;margin:0;padding:0}.nav-link{font-size:13.5px;font-weight:700;color:var(--color-text-main);text-decoration:none!important;padding:8px 10px;border-radius:var(--radius-sm);transition:all 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var(--color-border);border-radius:6px;padding:6px;cursor:pointer}.mobile-menu-btn .bar{width:100%;height:2px;background:var(--color-primary-dark);border-radius:2px;transition:all var(--transition-fast)}.mobile-menu-btn.active .bar:nth-child(1){transform:translateY(6px) rotate(45deg)}.mobile-menu-btn.active .bar:nth-child(2){opacity:0}.mobile-menu-btn.active .bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.mobile-drawer{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--color-border);box-shadow:0 12px 28px #0f172a1f}.mobile-drawer.open{display:block}.drawer-inner{padding:20px;max-width:var(--max-width);margin:0 auto}.drawer-links{list-style:none;margin:0 0 20px;padding:0}.drawer-link{display:block;padding:12px 14px;font-size:14.5px;font-weight:700;color:var(--color-primary-dark);border-bottom:1px solid 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#f1f5f9}.feat-icon{color:#10b981}.cta-box-action{display:flex;flex-direction:column;align-items:center;flex-shrink:0}.cta-main-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:#d97706;color:#fff!important;font-size:15px;font-weight:800;padding:13px 24px;border-radius:6px;box-shadow:0 2px 6px #d9770640;transition:all var(--transition-fast);text-decoration:none!important;white-space:nowrap}.cta-main-btn:hover{background:#b45309;box-shadow:0 4px 12px #d9770659;transform:translateY(-1px)}.cta-main-btn.btn-pending{background:#64748b;box-shadow:0 2px 6px #64748b26;cursor:default;pointer-events:none;user-select:none;opacity:.9}.btn-arrow{transition:transform var(--transition-fast)}.cta-main-btn:hover .btn-arrow{transform:translate(3px)}.cta-action-note{font-size:11px;color:var(--color-text-light);margin:8px 0 0;text-align:center;max-width:240px}@media(max-width:900px){.cta-box-card{padding:22px 20px!important}.cta-box-body{flex-direction:column;align-items:stretch;gap:20px}.cta-box-action,.cta-main-btn{width:100%}.cta-action-note{max-width:100%}}.site-footer{background:var(--color-primary-dark);color:var(--color-text-light);padding:60px 0 30px;margin-top:80px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}.footer-brand h3{color:#fff;font-size:20px;margin-bottom:12px}.footer-brand p{font-size:13px;line-height:1.7}.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px}.footer-col ul{list-style:none}.footer-col li{margin-bottom:10px}.footer-col a{color:var(--color-text-light);font-size:13px;transition:color var(--transition-fast)}.footer-col a:hover{color:#fff;text-decoration:none}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;text-align:center;font-size:12px}.prose{font-size:16px;line-height:1.85;color:var(--color-text-main)}.prose h1{font-size:28px;font-weight:800;line-height:1.35;margin-bottom:24px;color:var(--color-primary-dark)}.prose h2{font-size:22px;font-weight:800;line-height:1.4;margin-top:48px;margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--color-border);position:relative;color:var(--color-primary-dark)}.prose h2:after{content:"";position:absolute;bottom:-2px;left:0;width:48px;height:2px;background:var(--color-primary-light)}.prose h3{font-size:18px;font-weight:700;margin-top:36px;margin-bottom:16px;color:var(--color-primary)}.prose p{margin-bottom:24px}.prose ul,.prose ol{margin-top:12px;margin-bottom:24px;padding-left:24px}.prose li{margin-bottom:8px}.prose table{width:100%;border-collapse:collapse;margin:28px 0;font-size:14px;background:#fff;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--color-border)}.prose th{background:var(--color-primary-bg);color:var(--color-primary-dark);font-weight:700;text-align:left;padding:12px 16px;border-bottom:1px solid var(--color-border)}.prose td{padding:12px 16px;border-bottom:1px solid var(--color-border-subtle)}.prose tr:last-child td{border-bottom:none}.table-note{font-size:12px;color:var(--color-text-muted);margin-top:8px;margin-bottom:24px;line-height:1.5}.prose blockquote{border-left:4px solid var(--color-primary-light);padding:16px 20px;background:var(--color-primary-bg);border-radius:0 var(--radius-md) var(--radius-md) 0;margin:28px 0;font-style:normal;color:var(--color-primary-dark)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;border-radius:6px;cursor:pointer;border:none;transition:all var(--transition-fast);text-decoration:none!important;white-space:nowrap}.btn-primary{background:var(--color-primary);color:#fff;padding:12px 22px;box-shadow:0 2px 6px #1e3a8a33}.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px 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