:root{--neutral-950: #0A0A0B;--neutral-900: #141416;--neutral-800: #1E1E21;--neutral-700: #2C2C30;--neutral-600: #3F3F44;--neutral-500: #63636B;--neutral-400: #8E8E96;--neutral-300: #B5B5BC;--neutral-200: #D4D4D9;--neutral-100: #EBEBEE;--neutral-50: #FAFAFA;--brand-blue: #2563EB;--brand-blue-light: #3B82F6;--brand-blue-dark: #1D4ED8;--attic-purple-dark: #332659;--attic-purple: #59408C;--attic-purple-accent: #9980E6;--attic-purple-glow: rgba(153, 128, 230, .25);--pin-amber: #D4860B;--pin-amber-light: #E69B1A;--pin-coral: #FF6B6B;--pin-coral-dark: #E85D5D;--pin-warm-white: #FAF9F6;--app-primary: var(--brand-blue);--app-primary-dark: var(--brand-blue-dark);--app-accent: var(--brand-blue-light);--app-glow: rgba(37, 99, 235, .2);--text-primary: var(--neutral-950);--text-secondary: var(--neutral-600);--text-tertiary: var(--neutral-500);--text-inverse: var(--neutral-50);--bg-primary: var(--neutral-50);--bg-secondary: #FFFFFF;--bg-tertiary: var(--neutral-100);--border-primary: var(--neutral-200);--border-secondary: var(--neutral-100);--success: #16A34A;--warning: #D97706;--error: #DC2626;--font-heading: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;--font-cjk-ja: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;--font-cjk-zh-hans: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;--font-cjk-zh-hant: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", "Source Han Sans TC", sans-serif;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--text-4xl: clamp(2rem, 4vw, 2.5rem);--text-5xl: clamp(2.5rem, 5vw, 3.5rem);--text-6xl: clamp(3.5rem, 8vw, 5rem);--leading-tight: 1.2;--leading-normal: 1.6;--leading-relaxed: 1.75;--weight-normal: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--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;--space-24: 6rem;--space-32: 8rem;--max-width: 72rem;--max-width-narrow: 48rem;--max-width-wide: 80rem;--gutter: var(--space-6);--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .07), 0 2px 4px -2px rgba(0, 0, 0, .05);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -4px rgba(0, 0, 0, .04);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .08), 0 8px 10px -6px rgba(0, 0, 0, .04);--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-in-out: cubic-bezier(.45, 0, .55, 1);--duration-fast: .15s;--duration-normal: .25s;--duration-slow: .4s}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-size-adjust:100%}@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}body{min-height:100dvh;line-height:var(--leading-normal);color:var(--text-primary);background:var(--bg-primary)}img,picture,video,svg{display:block;max-width:100%}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer;background:none;border:none}ul,ol{list-style:none}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(/fonts/inter-variable.woff2) format("woff2");unicode-range:U+0000-017F,U+2000-206F,U+2074,U+20AC,U+2122,U+2190-21BB,U+2212,U+2215,U+FEFF,U+FFFD}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:var(--weight-bold);line-height:var(--leading-tight);color:var(--text-primary)}h1{font-size:var(--text-5xl)}h2{font-size:var(--text-4xl)}h3{font-size:var(--text-2xl)}h4{font-size:var(--text-xl)}p{max-width:65ch}strong{font-weight:var(--weight-bold)}code{font-family:var(--font-mono);font-size:.9em}:focus-visible{outline:2px solid var(--app-primary);outline-offset:2px;border-radius:var(--radius-sm)}::selection{background:var(--app-primary);color:var(--text-inverse)}.skip-link{position:absolute;top:-100%;left:var(--space-4);z-index:1000;padding:var(--space-2) var(--space-4);font-size:var(--text-sm);font-weight:var(--weight-bold);color:var(--text-inverse);background:var(--app-primary);border-radius:var(--radius-md);transition:top var(--duration-fast) var(--ease-out)}.skip-link:focus{top:var(--space-4)}.container{width:100%;max-width:var(--max-width);margin-inline:auto;padding-inline:var(--gutter)}.container--narrow{max-width:var(--max-width-narrow)}.container--wide{max-width:var(--max-width-wide)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.text-center{text-align:center}.text-balance{text-wrap:balance}html[lang=ja]{font-family:"Inter",var(--font-cjk-ja)}html[lang=zh-Hans],html[lang=zh-Hant]{word-break:normal;overflow-wrap:anywhere;line-break:strict}html[lang=zh-Hans]{font-family:"Inter",var(--font-cjk-zh-hans)}html[lang=zh-Hant]{font-family:"Inter",var(--font-cjk-zh-hant)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}