.navbar[data-astro-cid-ymhdp2rl]{position:sticky;top:0;z-index:1000;background:var(--nav-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--nav-border);transition:background var(--transition-normal),border-color var(--transition-normal)}.navbar-inner[data-astro-cid-ymhdp2rl]{height:var(--nav-height);display:flex;align-items:center;gap:var(--space-6)}.navbar-brand[data-astro-cid-ymhdp2rl]{display:flex;align-items:center;white-space:nowrap;transition:opacity var(--transition-fast)}.navbar-brand[data-astro-cid-ymhdp2rl]:hover{opacity:.7}.brand-logo[data-astro-cid-ymhdp2rl]{display:block;height:26px;width:auto;vertical-align:middle}.brand-logo-dark[data-astro-cid-ymhdp2rl]{display:none}.brand-logo-light[data-astro-cid-ymhdp2rl],[data-theme=dark] .brand-logo-dark[data-astro-cid-ymhdp2rl]{display:block}[data-theme=dark] .brand-logo-light[data-astro-cid-ymhdp2rl]{display:none}.nav-links[data-astro-cid-ymhdp2rl]{display:flex;list-style:none;gap:var(--space-6);flex:1;justify-content:center}.nav-link[data-astro-cid-ymhdp2rl]{font-size:var(--text-sm);font-weight:500;color:var(--color-text-muted);position:relative;padding-block:var(--space-1);transition:color var(--transition-fast)}.nav-link[data-astro-cid-ymhdp2rl]:hover,.nav-link[data-astro-cid-ymhdp2rl].active{color:var(--color-text)}.nav-link[data-astro-cid-ymhdp2rl]:after{content:"";position:absolute;bottom:-2px;left:0;width:0;height:1.5px;background:var(--color-text);border-radius:var(--radius-full);transition:width var(--transition-normal)}.nav-link[data-astro-cid-ymhdp2rl]:hover:after,.nav-link[data-astro-cid-ymhdp2rl].active:after{width:100%}.nav-controls[data-astro-cid-ymhdp2rl]{display:flex;align-items:center;gap:var(--space-4);margin-left:auto}.theme-toggle[data-astro-cid-ymhdp2rl]{background:none;border:none;padding:0;display:flex;align-items:center;cursor:pointer}.toggle-track[data-astro-cid-ymhdp2rl]{position:relative;width:40px;height:22px;background:var(--toggle-track-bg);border-radius:var(--radius-full);transition:background var(--transition-normal)}.toggle-thumb[data-astro-cid-ymhdp2rl]{position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:var(--radius-full);background:var(--color-text);display:flex;align-items:center;justify-content:center;color:var(--color-bg);transition:transform var(--transition-normal),background var(--transition-normal),color var(--transition-normal)}[data-theme=dark] .toggle-thumb[data-astro-cid-ymhdp2rl]{transform:translate(18px)}.theme-icon[data-astro-cid-ymhdp2rl]{display:flex;align-items:center}.lang-switcher[data-astro-cid-ymhdp2rl]{position:relative}.lang-btn[data-astro-cid-ymhdp2rl]{display:flex;align-items:center;gap:var(--space-1);background:none;border:none;padding:var(--space-1) 0;color:var(--color-text-muted);font-size:var(--text-sm);font-weight:500;cursor:pointer;transition:color var(--transition-fast);min-height:44px}.lang-btn[data-astro-cid-ymhdp2rl]:hover{color:var(--color-text)}.chevron[data-astro-cid-ymhdp2rl]{transition:transform var(--transition-fast)}.lang-switcher[data-astro-cid-ymhdp2rl].open .chevron[data-astro-cid-ymhdp2rl]{transform:rotate(180deg)}.lang-dropdown[data-astro-cid-ymhdp2rl]{position:absolute;top:calc(100% + var(--space-1));right:0;background:var(--color-surface-raised);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-2);min-width:130px;display:none;flex-direction:column;gap:var(--space-1);box-shadow:var(--shadow-md);z-index:100}.lang-switcher[data-astro-cid-ymhdp2rl].open .lang-dropdown[data-astro-cid-ymhdp2rl]{display:flex}.lang-option[data-astro-cid-ymhdp2rl]{padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);font-size:var(--text-sm);font-weight:500;color:var(--color-text-muted);transition:background var(--transition-fast),color var(--transition-fast)}.lang-option[data-astro-cid-ymhdp2rl]:hover{background:var(--color-accent-subtle);color:var(--color-text)}.lang-option[data-astro-cid-ymhdp2rl].active{color:var(--color-text);font-weight:700}.hamburger[data-astro-cid-ymhdp2rl]{display:none;align-items:center;justify-content:center;background:none;border:none;padding:var(--space-1);color:var(--color-text);cursor:pointer;min-height:44px;min-width:44px}.ham-icon[data-astro-cid-ymhdp2rl]{display:flex;align-items:center}.mobile-drawer[data-astro-cid-ymhdp2rl]{overflow:hidden;max-height:0;transition:max-height var(--transition-slow);background:var(--nav-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--nav-border)}.mobile-drawer[data-astro-cid-ymhdp2rl].open{max-height:400px}.drawer-links[data-astro-cid-ymhdp2rl]{list-style:none;padding:var(--space-4) 0 var(--space-2);display:flex;flex-direction:column;gap:var(--space-1)}.drawer-link[data-astro-cid-ymhdp2rl]{display:block;padding:var(--space-3) var(--space-4);border-radius:var(--radius-sm);font-size:var(--text-base);font-weight:500;color:var(--color-text-muted);transition:background var(--transition-fast),color var(--transition-fast)}.drawer-link[data-astro-cid-ymhdp2rl]:hover,.drawer-link[data-astro-cid-ymhdp2rl].active{background:var(--color-accent-subtle);color:var(--color-text)}.drawer-controls[data-astro-cid-ymhdp2rl]{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);border-top:1px solid var(--color-border);margin-top:var(--space-2);gap:var(--space-4)}.drawer-theme-toggle[data-astro-cid-ymhdp2rl]{display:flex;align-items:center;gap:var(--space-3);background:none;border:none;cursor:pointer;color:var(--color-text-muted);padding:0;min-height:44px}.drawer-toggle-label[data-astro-cid-ymhdp2rl]{font-size:var(--text-sm);font-weight:500;color:var(--color-text-muted)}.drawer-lang-switcher[data-astro-cid-ymhdp2rl]{position:relative}.drawer-lang-btn[data-astro-cid-ymhdp2rl]{display:flex;align-items:center;gap:var(--space-2);background:none;border:none;color:var(--color-text-muted);font-size:var(--text-sm);font-weight:500;cursor:pointer;min-height:44px;padding:0;transition:color var(--transition-fast)}.drawer-lang-btn[data-astro-cid-ymhdp2rl]:hover{color:var(--color-text)}.drawer-lang-switcher[data-astro-cid-ymhdp2rl].open .chevron[data-astro-cid-ymhdp2rl]{transform:rotate(180deg)}.drawer-lang-dropdown[data-astro-cid-ymhdp2rl]{position:absolute;bottom:calc(100% + var(--space-1));right:0;background:var(--color-surface-raised);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-2);min-width:130px;display:none;flex-direction:column;gap:var(--space-1);box-shadow:var(--shadow-md);z-index:100}.drawer-lang-switcher[data-astro-cid-ymhdp2rl].open .drawer-lang-dropdown[data-astro-cid-ymhdp2rl]{display:flex}@media(max-width:1023px){.nav-links[data-astro-cid-ymhdp2rl]{display:none}.hamburger[data-astro-cid-ymhdp2rl]{display:flex}.theme-toggle[data-astro-cid-ymhdp2rl],.lang-switcher[data-astro-cid-ymhdp2rl]{display:none}}@media(max-width:767px){.lang-btn[data-astro-cid-ymhdp2rl] .lang-label[data-astro-cid-ymhdp2rl]{display:none}}.footer[data-astro-cid-sz7xmlte]{background:var(--color-bg-subtle);border-top:1px solid var(--color-border);margin-top:var(--space-20)}.footer-grid[data-astro-cid-sz7xmlte]{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:var(--space-10);padding-block:var(--space-12)}@media(max-width:1023px){.footer-grid[data-astro-cid-sz7xmlte]{grid-template-columns:1fr 1fr;gap:var(--space-8)}}@media(max-width:767px){.footer-grid[data-astro-cid-sz7xmlte]{grid-template-columns:1fr;gap:var(--space-2);padding-block:var(--space-8)}}.footer-brand[data-astro-cid-sz7xmlte]{display:flex;flex-direction:column;gap:var(--space-3)}.brand-name[data-astro-cid-sz7xmlte]{font-size:var(--text-xl);font-weight:700;color:var(--color-text);transition:opacity var(--transition-fast)}.brand-name[data-astro-cid-sz7xmlte]:hover{opacity:.7}.brand-tagline[data-astro-cid-sz7xmlte]{font-size:var(--text-sm);color:var(--color-text-muted);line-height:1.6;max-width:24ch}.footer-col[data-astro-cid-sz7xmlte]{min-width:0}.footer-group[data-astro-cid-sz7xmlte]{border:none;background:none}.footer-heading[data-astro-cid-sz7xmlte]{font-size:var(--text-sm);font-weight:700;color:var(--color-text);text-transform:uppercase;letter-spacing:.08em;margin-bottom:var(--space-4);list-style:none;cursor:default}.footer-heading[data-astro-cid-sz7xmlte]::-webkit-details-marker{display:none}.footer-links[data-astro-cid-sz7xmlte]{list-style:none;display:flex;flex-direction:column;gap:var(--space-2)}.footer-link[data-astro-cid-sz7xmlte]{font-size:var(--text-sm);color:var(--color-text-muted);transition:color var(--transition-fast)}.footer-link[data-astro-cid-sz7xmlte]:hover{color:var(--color-accent)}.footer-social[data-astro-cid-sz7xmlte]{display:flex;align-items:center;gap:var(--space-2)}.newsletter-form[data-astro-cid-sz7xmlte]{display:flex;flex-direction:column;gap:var(--space-3);margin-top:var(--space-4)}.newsletter-input[data-astro-cid-sz7xmlte]{width:100%;padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface-raised);color:var(--color-text);font-size:var(--text-sm);font-family:inherit;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.newsletter-input[data-astro-cid-sz7xmlte]::placeholder{color:var(--color-text-muted)}.newsletter-input[data-astro-cid-sz7xmlte]:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-subtle)}.newsletter-btn[data-astro-cid-sz7xmlte]{padding:var(--space-3) var(--space-4);background:var(--color-accent);color:var(--color-btn-text);border:none;border-radius:var(--radius-sm);font-size:var(--text-sm);font-weight:600;transition:background var(--transition-fast),transform var(--transition-fast)}.newsletter-btn[data-astro-cid-sz7xmlte]:hover{background:var(--color-accent-hover);transform:translateY(-1px)}.newsletter-btn[data-astro-cid-sz7xmlte]:active{transform:translateY(0)}.footer-bottom[data-astro-cid-sz7xmlte]{border-top:1px solid var(--color-border);padding-block:var(--space-4)}.footer-bottom-inner[data-astro-cid-sz7xmlte]{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:var(--space-3)}.copyright[data-astro-cid-sz7xmlte]{font-size:var(--text-xs);color:var(--color-text-muted)}.back-to-top[data-astro-cid-sz7xmlte]{font-size:var(--text-xs);font-weight:600;color:var(--color-text-muted);transition:color var(--transition-fast)}.back-to-top[data-astro-cid-sz7xmlte]:hover{color:var(--color-accent)}@media(max-width:767px){.footer-group[data-astro-cid-sz7xmlte]{border-bottom:1px solid var(--color-border);padding-block:var(--space-1)}.footer-heading[data-astro-cid-sz7xmlte]{cursor:pointer;padding-block:var(--space-3);margin-bottom:0;display:flex;justify-content:space-between;align-items:center}.footer-heading[data-astro-cid-sz7xmlte]:after{content:"+";font-size:var(--text-lg);font-weight:300;transition:transform var(--transition-fast)}details[data-astro-cid-sz7xmlte][open]>.footer-heading[data-astro-cid-sz7xmlte]:after{transform:rotate(45deg)}.footer-links[data-astro-cid-sz7xmlte]{padding-bottom:var(--space-3)}.footer-col[data-astro-cid-sz7xmlte]:last-child .footer-heading[data-astro-cid-sz7xmlte]{cursor:default}.footer-col[data-astro-cid-sz7xmlte]:last-child .footer-heading[data-astro-cid-sz7xmlte]:after{display:none}.footer-brand[data-astro-cid-sz7xmlte]{padding-bottom:var(--space-4);border-bottom:1px solid var(--color-border)}}:root{--color-bg: #ffffff;--color-bg-subtle: #f7f7f7;--color-surface: rgba(255, 255, 255, .72);--color-surface-raised:#ffffff;--color-border: rgba(0, 0, 0, .1);--color-text: #111111;--color-text-muted: #888888;--color-accent: #111111;--color-accent-hover: #333333;--color-accent-subtle: rgba(0, 0, 0, .05);--color-overlay: rgba(0, 0, 0, .4);--color-btn-text: #ffffff;--toggle-track-bg: rgba(0, 0, 0, .15);--nav-bg: rgba(255, 255, 255, .8);--nav-border: rgba(0, 0, 0, .08);--shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.04);--shadow-lg: 0 16px 40px rgba(0,0,0,.12);--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--font-sans: "IBM Plex Sans", system-ui, -apple-system, sans-serif;--text-xs: clamp(.7rem, 1.5vw, .75rem);--text-sm: clamp(.8rem, 1.8vw, .875rem);--text-base: clamp(.9rem, 2vw, 1rem);--text-lg: clamp(1rem, 2.5vw, 1.125rem);--text-xl: clamp(1.1rem, 3vw, 1.25rem);--text-2xl: clamp(1.25rem, 3.5vw, 1.5rem);--text-3xl: clamp(1.5rem, 4vw, 2rem);--text-4xl: clamp(2rem, 5vw, 2.75rem);--text-5xl: clamp(2.5rem, 6vw, 3.75rem);--radius-sm: 6px;--radius-md: 9px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease;--max-width: 1200px;--nav-height: 68px}[data-theme=dark]{--color-bg: #111111;--color-bg-subtle: #1a1a1a;--color-surface: rgba(17, 17, 17, .8);--color-surface-raised:#222222;--color-border: rgba(255, 255, 255, .1);--color-text: #eeeeee;--color-text-muted: #888888;--color-accent: #eeeeee;--color-accent-hover: #cccccc;--color-accent-subtle: rgba(255, 255, 255, .07);--color-overlay: rgba(0, 0, 0, .6);--color-btn-text: #111111;--toggle-track-bg: rgba(255, 255, 255, .2);--nav-bg: rgba(17, 17, 17, .85);--nav-border: rgba(255, 255, 255, .08);--shadow-sm: 0 1px 3px rgba(0,0,0,.4), 0 1px 2px rgba(0,0,0,.3);--shadow-md: 0 4px 16px rgba(0,0,0,.4), 0 2px 6px rgba(0,0,0,.3);--shadow-lg: 0 16px 40px rgba(0,0,0,.6)}:lang(ja){--font-sans: "IBM Plex Sans JP", "IBM Plex Sans", sans-serif}:lang(zh){--font-sans: "IBM Plex Sans SC", "IBM Plex Sans", sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);font-size:var(--text-base);color:var(--color-text);background-color:var(--color-bg);line-height:1.6;transition:background-color var(--transition-normal),color var(--transition-normal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}img,video{max-width:100%;display:block}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer}.container{width:100%;max-width:var(--max-width);margin-inline:auto;padding-inline:var(--space-8)}@media(max-width:768px){.container{padding-inline:var(--space-4)}}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}