@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@24,400,0,0&display=swap");:root{--ik-bg:#fff;--ik-bg-subtle:#f8f9fa;--ik-bg-canvas:#f1f3f4;--ik-surface:#fff;--ik-surface-1:#fff;--ik-surface-2:#f8f9fa;--ik-surface-3:#f1f3f4;--ik-text-primary:#202124;--ik-text-secondary:#5f6368;--ik-text-tertiary:#80868b;--ik-text-disabled:#bdc1c6;--ik-text-on-accent:#fff;--ik-border:#dadce0;--ik-border-strong:#bdc1c6;--ik-divider:#e8eaed;--ik-accent:#1a73e8;--ik-accent-hover:#1967d2;--ik-accent-pressed:#185abc;--ik-accent-soft:#e8f0fe;--ik-accent-on:#fff;--ik-success:#1e8e3e;--ik-success-soft:#e6f4ea;--ik-warning:#f9ab00;--ik-warning-soft:#fef7e0;--ik-danger:#d93025;--ik-danger-soft:#fce8e6;--ik-info:#1a73e8;--ik-info-soft:#e8f0fe;--ik-font-sans:"Roboto","Google Sans",-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic UI","Noto Sans JP","Segoe UI",system-ui,sans-serif;--ik-font-mono:"Roboto Mono",ui-monospace,"SF 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rgba(60,64,67,.3);--ik-content-narrow:720px;--ik-content-default:960px;--ik-content-wide:1280px;--ik-header-height:64px;--ik-duration-fast:100ms;--ik-duration-base:200ms;--ik-duration-slow:300ms;--ik-easing-standard:cubic-bezier(0.4,0,0.2,1);--ik-easing-accelerate:cubic-bezier(0.4,0,1,1);--ik-easing-decelerate:cubic-bezier(0,0,0.2,1)}*,:after,:before{box-sizing:border-box}html{color-scheme:light;-webkit-text-size-adjust:100%;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background:var(--ik-bg-canvas);font-family:var(--ik-font-sans);font-size:var(--ik-text-sm);line-height:var(--ik-leading-normal);font-feature-settings:"palt"}body,h1,h2,h3,h4,h5,h6{margin:0;color:var(--ik-text-primary)}h1,h2,h3,h4,h5,h6{font-weight:var(--ik-weight-medium);letter-spacing:-.005em}h1{font-size:var(--ik-text-3xl);line-height:var(--ik-leading-tight);font-weight:var(--ik-weight-regular)}h2{font-size:var(--ik-text-2xl);line-height:var(--ik-leading-snug)}h3{font-size:var(--ik-text-xl)}h4{font-size:var(--ik-text-lg)}p{margin:0 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400,"GRAD" 0,"opsz" 24}.ik-skip-link{position:absolute;left:var(--ik-space-2);top:var(--ik-space-2);background:var(--ik-accent);color:var(--ik-accent-on);padding:var(--ik-space-2) var(--ik-space-4);border-radius:var(--ik-radius-sm);transform:translateY(-200%);transition:transform var(--ik-duration-base) var(--ik-easing-standard);z-index:1000}.ik-skip-link:focus{transform:translateY(0);text-decoration:none}.ik-container{width:100%;max-width:var(--ik-content-default);margin:0 auto;padding-left:var(--ik-space-4);padding-right:var(--ik-space-4)}.ik-container--narrow{max-width:var(--ik-content-narrow)}.ik-container--wide{max-width:var(--ik-content-wide)}.ik-topbar{position:-webkit-sticky;position:sticky;top:0;z-index:10;background:var(--ik-surface);border-bottom:1px solid var(--ik-divider);height:var(--ik-header-height);display:flex;align-items:center;padding:0 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p{margin:0;color:var(--ik-text-secondary)}.hk-cta-row{display:flex;gap:var(--ik-space-3);flex-wrap:wrap}.hk-articles,.hk-cta-row{margin-top:var(--ik-space-5)}.hk-articles{display:grid;grid-gap:var(--ik-space-4);gap:var(--ik-space-4)}.hk-article-content{max-width:var(--ik-content-narrow);margin:0 auto;padding:var(--ik-space-6) var(--ik-space-4)}.hk-article-content h2{margin-top:var(--ik-space-6)}.hk-article-content li,.hk-article-content p{font-size:16px;line-height:1.7}.hk-article-content ol,.hk-article-content ul{padding-left:var(--ik-space-5);margin-bottom:var(--ik-space-4)}.hk-feedback-link{display:inline-flex;align-items:center;gap:var(--ik-space-1);font-size:var(--ik-text-xs);color:var(--ik-accent);padding:var(--ik-space-1) var(--ik-space-2)}input,select,textarea{font-size:max(16px,16px)}@media (max-width:839px){.ik-button,[role=button],a,button,input[type=button],input[type=submit]{min-height:44px}.ik-footer__nav a,.ik-topbar__nav a,nav a{padding:12px 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