/*! (c) 2025 Kazuki Kawamura (casp.jp). All rights reserved. Unauthorized copying or redistribution of this stylesheet is prohibited. */
@keyframes fadeInUp{0%{opacity:0;transform:translateY(2rem)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes neuralFlow{0%,to{background-position:0 50%}50%{background-position:100% 50%}}:root{--primary-color:#007aff;--primary-light:#5ac8fa;--primary-dark:#0051d5;--secondary-color:#5856d6;--accent-color:#ff9500;--success-color:#34c759;--warning-color:#ff9500;--error-color:#ff3b30;--primary-color-rgb:0, 122, 255;--primary-light-rgb:90, 200, 250;--secondary-color-rgb:88, 86, 214;--secondary-light-rgb:94, 92, 230;--neural-blue:#007aff;--neural-purple:#5856d6;--neural-cyan:#5ac8fa;--neural-green:#30d158;--text-primary:#1d1d1f;--text-secondary:#86868b;--text-muted:#a1a1a6;--text-inverse:#ffffff;--bg-primary:#ffffff;--bg-secondary:#f5f5f7;--bg-tertiary:#fbfbfd;--bg-overlay:rgba(255, 255, 255, 0.8);--glass-bg:rgba(255, 255, 255, 0.72);--glass-border:rgba(0, 0, 0, 0.05);--glass-shadow:0 8px 32px rgba(0, 0, 0, 0.12);--surface-blur-soft:8px;--surface-blur-medium:10px;--surface-blur-strong:14px;--shadow-sm:0 1px 3px rgba(0, 0, 0, 0.04);--shadow-md:0 4px 16px rgba(0, 0, 0, 0.06);--shadow-lg:0 12px 40px rgba(0, 0, 0, 0.08);--shadow-xl:0 24px 64px rgba(0, 0, 0, 0.12);--shadow-glow:0 0 32px rgba(0, 122, 255, 0.15);--shadow-neural:0 8px 40px rgba(88, 86, 214, 0.15);--hero-bg-opacity:0;--neural-opacity:0;--gradient-primary:var(--gradient-text);--gradient-neural:linear-gradient(135deg, #0b6fc4 0%, #0a84ff 50%, #5ac8fa 100%);--gradient-community:linear-gradient(135deg, #007aff 0%, #ff9500 100%);--gradient-mesh:radial-gradient(circle at 20% 50%, rgba(0, 122, 255, 0.1) 0%, transparent 50%), 
                        radial-gradient(circle at 80% 20%, rgba(88, 86, 214, 0.1) 0%, transparent 50%),
                        radial-gradient(circle at 40% 80%, rgba(90, 200, 250, 0.1) 0%, transparent 50%);--gradient-text:linear-gradient(120deg, #0b6fc4 0%, #0a84ff 90%);--text-glow-soft:0 6px 18px rgba(10, 132, 255, 0.2);--brand-x:#000000;--brand-linkedin:#0a66c2;--brand-scholar:#4285f4;--brand-acm:#0085ca;--brand-soundcloud:#ff5500;--space-xs:0.25rem;--space-sm:0.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--space-3xl:4rem;--font-family-primary:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'BIZ UDGothic', 'Noto Sans JP', sans-serif;--font-family-mono:'JetBrains Mono', 'SF Mono', Consolas, monospace;--font-size-xs:0.75rem;--font-size-sm:0.875rem;--font-size-base:1rem;--font-size-lg:1.125rem;--font-size-xl:1.25rem;--font-size-2xl:1.5rem;--font-size-3xl:1.875rem;--font-size-4xl:2.25rem;--font-size-5xl:3rem;--transition-fast:0.12s cubic-bezier(0.22, 1, 0.36, 1);--transition-base:0.22s cubic-bezier(0.22, 1, 0.36, 1);--transition-slow:0.36s cubic-bezier(0.22, 1, 0.36, 1);--container-max-width:1160px;--content-max-width:780px;--section-media-width-desktop:148px;--section-column-gap:calc(var(--space-sm) + 0.45rem);--section-text-measure:45rem;--section-block-max-width:calc(var(--section-media-width-desktop) + var(--section-column-gap) + var(--section-text-measure));--section-padding:6rem;--nav-height:3.5rem;--radius-sm:0.5rem;--radius-md:0.75rem;--radius-lg:1rem;--radius-xl:1.5rem;--radius-full:9999px;--bg-card:var(--bg-secondary);--border-subtle:var(--glass-border);--text-tertiary:var(--text-muted);--accent-primary:var(--primary-color);--accent-primary-alpha:rgba(var(--primary-color-rgb), 0.2);--shadow-card:var(--shadow-md);--research-thumb-bg:#fdfdfd;--research-thumb-border:rgba(0, 0, 0, 0.08)}[data-theme=dark]{--primary-color:#0a84ff;--primary-light:#64d2ff;--primary-dark:#0056cc;--secondary-color:#5e5ce6;--accent-color:#ff9f0a;--primary-color-rgb:10, 132, 255;--primary-light-rgb:100, 210, 255;--secondary-color-rgb:94, 92, 230;--secondary-light-rgb:100, 210, 255;--text-primary:#ffffff;--text-secondary:#a8a8ad;--text-muted:#737378;--text-inverse:#000000;--bg-primary:#000000;--bg-secondary:#1c1c1e;--bg-tertiary:#2c2c2e;--bg-overlay:rgba(0, 0, 0, 0.8);--glass-bg:rgba(28, 28, 30, 0.72);--glass-border:rgba(255, 255, 255, 0.1);--glass-shadow:0 8px 32px rgba(0, 0, 0, 0.3);--shadow-sm:0 1px 3px rgba(0, 0, 0, 0.2);--shadow-md:0 4px 16px rgba(0, 0, 0, 0.25);--shadow-lg:0 12px 40px rgba(0, 0, 0, 0.3);--shadow-xl:0 24px 64px rgba(0, 0, 0, 0.4);--shadow-glow:0 0 32px rgba(10, 132, 255, 0.25);--shadow-neural:0 8px 40px rgba(94, 92, 230, 0.25);--hero-bg-opacity:0.03;--neural-opacity:0.1;--gradient-primary:var(--gradient-text);--gradient-mesh:radial-gradient(circle at 20% 50%, rgba(10, 132, 255, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 80% 20%, rgba(94, 92, 230, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 40% 80%, rgba(100, 210, 255, 0.15) 0%, transparent 50%);--gradient-text:linear-gradient(120deg, #5ba8ff 0%, #2d9bff 90%);--text-glow-soft:0 6px 22px rgba(100, 210, 255, 0.25);--bg-card:var(--bg-secondary);--border-subtle:var(--glass-border);--text-tertiary:var(--text-muted);--accent-primary:var(--primary-color);--accent-primary-alpha:rgba(var(--primary-color-rgb), 0.3);--shadow-card:var(--shadow-md);--research-thumb-bg:rgba(255, 255, 255, 0.96);--research-thumb-border:rgba(255, 255, 255, 0.14)}@media (prefers-color-scheme:dark) and (min-width:769px){:root:not([data-theme=light]){--primary-color:#0a84ff;--primary-light:#64d2ff;--primary-dark:#0056cc;--secondary-color:#5e5ce6;--accent-color:#ff9f0a;--primary-color-rgb:10, 132, 255;--primary-light-rgb:100, 210, 255;--secondary-color-rgb:94, 92, 230;--secondary-light-rgb:100, 210, 255;--text-primary:#ffffff;--text-secondary:#a8a8ad;--text-muted:#737378;--text-inverse:#000000;--bg-primary:#000000;--bg-secondary:#1c1c1e;--bg-tertiary:#2c2c2e;--bg-overlay:rgba(0, 0, 0, 0.8);--glass-bg:rgba(28, 28, 30, 0.72);--glass-border:rgba(255, 255, 255, 0.1);--glass-shadow:0 8px 32px rgba(0, 0, 0, 0.3);--shadow-sm:0 1px 3px rgba(0, 0, 0, 0.2);--shadow-md:0 4px 16px rgba(0, 0, 0, 0.25);--shadow-lg:0 12px 40px rgba(0, 0, 0, 0.3);--shadow-xl:0 24px 64px rgba(0, 0, 0, 0.4);--shadow-glow:0 0 32px rgba(10, 132, 255, 0.25);--shadow-neural:0 8px 40px rgba(94, 92, 230, 0.25);--hero-bg-opacity:0.03;--neural-opacity:0.1;--gradient-primary:var(--gradient-text);--gradient-mesh:radial-gradient(circle at 20% 50%, rgba(10, 132, 255, 0.15) 0%, transparent 50%),
                            radial-gradient(circle at 80% 20%, rgba(94, 92, 230, 0.15) 0%, transparent 50%),
                            radial-gradient(circle at 40% 80%, rgba(100, 210, 255, 0.15) 0%, transparent 50%);--gradient-text:linear-gradient(120deg, #5ba8ff 0%, #2d9bff 90%);--text-glow-soft:0 6px 22px rgba(100, 210, 255, 0.25);--bg-card:var(--bg-secondary);--border-subtle:var(--glass-border);--text-tertiary:var(--text-muted);--accent-primary:var(--primary-color);--accent-primary-alpha:rgba(var(--primary-color-rgb), 0.3);--shadow-card:var(--shadow-md);--research-thumb-bg:rgba(255, 255, 255, 0.96);--research-thumb-border:rgba(255, 255, 255, 0.14)}}*,::after,::before{box-sizing:border-box;margin:0;padding:0}html{font-size:15px;scroll-behavior:auto;scroll-padding-top:var(--nav-height);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body,h1,h2,h3,h4,h5,h6{color:var(--text-primary)}body{font-family:var(--font-family-primary);font-size:var(--font-size-base);line-height:1.66;background-color:var(--bg-primary);transition:background-color var(--transition-base),color var(--transition-base);overflow-x:hidden}h1,h2,h3,h4,h5,h6{line-height:1.3;letter-spacing:-.02em}h1{font-size:var(--font-size-5xl);font-weight:700}h2,h3,h4,h5,h6{font-weight:600;margin-bottom:var(--space-md)}h2{font-size:var(--font-size-4xl)}h3{font-size:var(--font-size-3xl)}h4{font-size:var(--font-size-2xl)}h5{font-size:var(--font-size-xl)}h6{font-size:var(--font-size-lg)}h1,ol,p,ul{margin-bottom:var(--space-md)}p{color:var(--text-secondary);line-height:1.82}a{color:var(--primary-color);text-decoration:none;transition:all var(--transition-fast)}a:hover{color:var(--primary-dark)}code{font-family:var(--font-family-mono);font-size:.875em;background-color:var(--bg-tertiary);padding:.125rem .25rem;border-radius:var(--radius-sm)}img{max-width:100%;height:auto}ol,ul{margin-left:var(--space-lg)}li{margin-bottom:var(--space-xs)}.container{max-width:var(--container-max-width);margin:0 auto;padding:0 var(--space-lg)}.section-modern{padding:0;position:relative;content-visibility:auto;contain-intrinsic-size:1px 900px}.section-title{font-size:var(--font-size-3xl);font-weight:700;margin-bottom:var(--space-2xl);padding-bottom:0;text-align:center;position:relative;background:var(--gradient-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.section-title::after{content:none}.content-en,.content-ja{display:none}html[lang=en] .content-en,html[lang=ja] .content-ja,img{display:block}html[lang=en] .content-en.inline,html[lang=ja] .content-ja.inline{display:inline}.highlight{background:var(--gradient-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;font-weight:600;text-shadow:var(--text-glow-soft)}.content-ja .highlight{margin-inline:.25em}.content-ja .highlight.is-flush{margin-inline:0}.glass-card{background:var(--glass-bg);backdrop-filter:blur(var(--surface-blur-strong));-webkit-backdrop-filter:blur(var(--surface-blur-strong));border:1px solid var(--glass-border);border-radius:var(--radius-xl);box-shadow:var(--glass-shadow);transition:transform var(--transition-base),box-shadow var(--transition-base),border-color var(--transition-base),background-color var(--transition-base)}.glass-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl)}.neural-glow{box-shadow:var(--shadow-neural)}@media (max-width:1024px){:root{--section-padding:4rem;--font-size-5xl:2.5rem;--font-size-4xl:2rem}.container{padding:0 var(--space-md)}}@media (max-width:768px){:root{--section-padding:3rem;--font-size-5xl:2rem;--font-size-4xl:1.75rem;--font-size-3xl:1.5rem}html{font-size:14px}.container{padding:0 var(--space-md)}.section-modern{padding:0}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}h4{font-size:var(--font-size-lg)}}@media (max-width:480px){:root{--section-padding:2rem;--space-lg:1rem}.container{padding:0 var(--space-md)}.section-modern{padding:0}}@media print{.hamburger,.mobile-menu,.scroll-indicator{display:none!important}body{color:#000;background:#fff}.section-modern{padding:1rem 0;content-visibility:visible;contain-intrinsic-size:auto}}@media (prefers-reduced-motion:reduce){*,::after,::before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}html{scroll-behavior:auto}}