.header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:1000;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);box-shadow:var(--shadow-md)}.header-inner[data-astro-cid-3ef6ksr2]{max-width:var(--max-content-width);margin:0 auto;padding:0 var(--spacing-md);display:flex;align-items:center;justify-content:space-between;height:var(--header-height)}.logo[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;text-decoration:none;color:var(--color-white)}.logo-text[data-astro-cid-3ef6ksr2]{font-size:1.5rem;font-weight:800;letter-spacing:.05em}.nav-list[data-astro-cid-3ef6ksr2]{display:flex;list-style:none;gap:var(--spacing-xs)}.nav-link[data-astro-cid-3ef6ksr2]{display:block;padding:.5rem .75rem;color:var(--color-white);text-decoration:none;font-size:.9rem;font-weight:500;border-radius:4px;transition:all var(--transition-fast)}.nav-link[data-astro-cid-3ef6ksr2]:hover{background:#fff3;text-decoration:none}.nav-link[data-astro-cid-3ef6ksr2].active{background:#ffffff40}.mobile-menu-btn[data-astro-cid-3ef6ksr2]{display:none;background:none;border:none;cursor:pointer;padding:.5rem}.hamburger[data-astro-cid-3ef6ksr2]{display:block;width:24px;height:2px;background:var(--color-white);position:relative}.hamburger[data-astro-cid-3ef6ksr2]:before,.hamburger[data-astro-cid-3ef6ksr2]:after{content:"";position:absolute;width:24px;height:2px;background:var(--color-white);left:0}.hamburger[data-astro-cid-3ef6ksr2]:before{top:-7px}.hamburger[data-astro-cid-3ef6ksr2]:after{bottom:-7px}@media (max-width: 1024px){.nav-link[data-astro-cid-3ef6ksr2]{padding:.5rem;font-size:.85rem}}@media (max-width: 768px){.mobile-menu-btn[data-astro-cid-3ef6ksr2]{display:block}.nav[data-astro-cid-3ef6ksr2]{position:fixed;top:var(--header-height);left:0;right:0;background:var(--color-primary-dark);padding:var(--spacing-md);transform:translateY(-100%);opacity:0;visibility:hidden;transition:all var(--transition-normal)}.nav[data-astro-cid-3ef6ksr2].open{transform:translateY(0);opacity:1;visibility:visible}.nav-list[data-astro-cid-3ef6ksr2]{flex-direction:column;gap:var(--spacing-xs)}.nav-link[data-astro-cid-3ef6ksr2]{padding:.75rem 1rem;font-size:1rem}}.footer[data-astro-cid-sz7xmlte]{background:var(--color-gray-800);color:var(--color-gray-300);padding:var(--spacing-2xl) 0 var(--spacing-lg);margin-top:auto}.footer-inner[data-astro-cid-sz7xmlte]{max-width:var(--max-content-width);margin:0 auto;padding:0 var(--spacing-md)}.footer-content[data-astro-cid-sz7xmlte]{display:flex;justify-content:space-between;flex-wrap:wrap;gap:var(--spacing-xl);padding-bottom:var(--spacing-xl);border-bottom:1px solid var(--color-gray-700)}.footer-title[data-astro-cid-sz7xmlte]{font-size:1.125rem;font-weight:600;color:var(--color-white);margin-bottom:var(--spacing-sm)}.footer-venue[data-astro-cid-sz7xmlte],.footer-dates[data-astro-cid-sz7xmlte]{font-size:.875rem;margin-bottom:var(--spacing-xs)}.footer-contact[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--color-primary-light)}.footer-contact[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--color-white)}.footer-bottom[data-astro-cid-sz7xmlte]{padding-top:var(--spacing-lg);text-align:center;font-size:.875rem}@media (max-width: 768px){.footer-content[data-astro-cid-sz7xmlte]{flex-direction:column;text-align:center}}:root{--color-primary: #00A8A8;--color-primary-dark: #008B8B;--color-primary-light: #40C4C4;--color-primary-pale: #E0F7F7;--color-accent-orange: #E87B35;--color-accent-purple: #8B5BA0;--color-accent-yellow: #F5C842;--color-accent-pink: #E85D8C;--color-white: #FFFFFF;--color-black: #1A1A1A;--color-gray-50: #F9FAFB;--color-gray-100: #F3F4F6;--color-gray-200: #E5E7EB;--color-gray-300: #D1D5DB;--color-gray-400: #9CA3AF;--color-gray-500: #6B7280;--color-gray-600: #4B5563;--color-gray-700: #374151;--color-gray-800: #1F2937;--color-gray-900: #111827;--color-sponsor-platinum-plus: #1A1A1A;--color-sponsor-platinum: #4A4A4A;--color-sponsor-gold: #D4AF37;--color-sponsor-silver: #A0A0A0;--color-sponsor-academia: #00A8A8;--font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;--font-heading: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4rem;--sidebar-width: 280px;--header-height: 70px;--max-content-width: 1200px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--transition-fast: .15s ease;--transition-normal: .3s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-sans);line-height:1.7;color:var(--color-gray-800);background-color:var(--color-white);min-height:100vh}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.3;color:var(--color-gray-900)}h1{font-size:2.25rem}h2{font-size:1.75rem}h3{font-size:1.5rem}h4{font-size:1.25rem}p{margin-bottom:1rem}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-dark);text-decoration:underline}img{max-width:100%;height:auto}.container{max-width:var(--max-content-width);margin:0 auto;padding:0 var(--spacing-md)}.section{padding:var(--spacing-3xl) 0}.section-title{font-size:1.75rem;color:var(--color-primary-dark);margin-bottom:var(--spacing-xl);padding-bottom:var(--spacing-sm);border-bottom:3px solid var(--color-primary);display:inline-block}.text-primary{color:var(--color-primary)}.text-center{text-align:center}.text-small{font-size:.875rem}.bg-primary{background-color:var(--color-primary)}.bg-primary-pale{background-color:var(--color-primary-pale)}.bg-gray{background-color:var(--color-gray-50)}.btn{display:inline-block;padding:.75rem 1.5rem;border-radius:6px;font-weight:600;text-align:center;text-decoration:none;transition:all var(--transition-fast);cursor:pointer;border:none}.btn-primary{background-color:var(--color-primary);color:var(--color-white)}.btn-primary:hover{background-color:var(--color-primary-dark);color:var(--color-white);text-decoration:none}.btn-outline{background-color:transparent;color:var(--color-primary);border:2px solid var(--color-primary)}.btn-outline:hover{background-color:var(--color-primary);color:var(--color-white);text-decoration:none}.card{background:var(--color-white);border-radius:8px;box-shadow:var(--shadow-md);padding:var(--spacing-lg)}.news-list{list-style:none}.news-item{padding:var(--spacing-md) 0;border-bottom:1px solid var(--color-gray-200)}.news-item:last-child{border-bottom:none}.news-date{font-size:.875rem;color:var(--color-gray-500);margin-right:var(--spacing-md)}.news-badge{display:inline-block;background-color:var(--color-accent-orange);color:var(--color-white);font-size:.75rem;font-weight:700;padding:.125rem .5rem;border-radius:3px;margin-left:var(--spacing-sm)}.coming-soon{text-align:center;padding:var(--spacing-3xl)}.coming-soon-icon{font-size:4rem;margin-bottom:var(--spacing-lg)}.coming-soon-title{font-size:2rem;color:var(--color-primary);margin-bottom:var(--spacing-md)}.coming-soon-date{font-size:1.125rem;color:var(--color-gray-600)}table{width:100%;border-collapse:collapse;margin:var(--spacing-lg) 0}th,td{padding:var(--spacing-sm) var(--spacing-md);text-align:left;border-bottom:1px solid var(--color-gray-200)}th{background-color:var(--color-primary-pale);font-weight:600;color:var(--color-primary-dark)}@media (max-width: 1024px){:root{--sidebar-width: 220px}}@media (max-width: 768px){:root{--sidebar-width: 100%;--header-height: 60px}html{font-size:14px}.section{padding:var(--spacing-2xl) 0}}.page-title{font-size:2rem;color:var(--color-primary-dark);margin-bottom:var(--spacing-xl);padding-bottom:var(--spacing-md);border-bottom:3px solid var(--color-primary);position:relative}.page-title:before{content:"";position:absolute;bottom:-3px;left:0;width:60px;height:3px;background:var(--color-accent-orange)}