:root{--premium-page-bg:#e7f6fb;--premium-section-tint:#d7eff8;--premium-surface:#f7fcff;--premium-surface-muted:#edf8fd;--premium-border-soft:#bfe4f1;--premium-border-strong:#8cd9f4;--premium-text-main:#2c2c2c;--premium-text-strong:#222;--premium-text-soft:#4f4f4f;--premium-primary:#4285f4;--premium-primary-strong:#16459a;--premium-primary-soft:#ebf3ff;--premium-primary-ring:#4285f42e;--premium-success:#1e8a4b;--premium-success-soft:#edf8f1;--premium-warning:#e97132;--premium-warning-soft:#fff0db;--premium-danger:#c00;--premium-danger-soft:#fff4f4;--premium-neutral-soft:#eee}.premium-page{min-height:100vh;color:var(--premium-text-main);background:var(--premium-page-bg);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-family:Hiragino Kaku Gothic ProN,Yu Gothic Medium,Yu Gothic,Meiryo,Noto Sans JP,sans-serif;font-weight:600}.premium-card{background:#fffffff5;position:relative;overflow:hidden}