:root{--space-0:0;--space-1:0.5rem;--space-1-5:0.75rem;--space-2:1rem;--space-3:1.5rem;--space-4:2rem;--space-6:3rem;--space-8:4rem;--space-12:6rem;--container-max:1200px;--container-pad-sm:var(--space-3);--container-pad-md:var(--space-4);--container-pad-lg:var(--space-6);--gap-sm:var(--space-2);--gap-md:var(--space-3);--gap-lg:var(--space-4);--color-positive-500:#0b5f3a;--color-bg:#ffffff;--color-surface:#f8fafb;--color-text:#1a1a1a;--color-text-strong:#111827;--color-text-muted:#4b5563;--color-text-subtle:#6b7280;--color-muted:#6b7280;--color-muted-stronger:#1f2937;--color-primary:#bb4430;--color-primary-strong:#9e3a28;--radius:12px;--radius-sm:8px;--radius-md:12px;--radius-lg:24px;--radius-xl:32px;--shadow-soft:0 10px 30px rgba(0,0,0,0.08);--shadow-lg:0 28px 60px rgba(var(--ink-rgb),0.14);--surface-warm:#fff7f3;--surface-frosted:rgba(255,255,255,0.92);--surface-frosted-soft:rgba(255,255,255,0.88);--surface-notice:#fff1ec;--surface-muted:#f5f7fa;--border-subtle-soft:#d6e8ea;--ink-rgb:15,23,42;--ink-elevated-rgb:17,19,24;--brand-primary-rgb:187,68,48;--brand-iris-rgb:99,102,241;--brand-indigo-rgb:79,70,229;--brand-sky-rgb:59,130,246;--tone-positive-rgb:9,94,57;--font-sans-en:"Inter",system-ui,-apple-system,"Segoe UI","Helvetica Neue","Roboto",Arial,"Apple Color Emoji","Segoe UI Emoji",sans-serif;--font-sans-ja:"IBM Plex Sans JP","Hiragino Sans","Yu Gothic","Meiryo","Noto Sans JP",system-ui,-apple-system,"Segoe UI","Helvetica Neue",Arial,sans-serif;--font-sans-zh:"Noto Sans SC","Source Han Sans SC","PingFang SC",system-ui,-apple-system,"Segoe UI","Helvetica Neue","Hiragino Sans","Yu Gothic","Meiryo",Arial,sans-serif;--font-body:var(--font-sans-en);--font-heading:var(--font-sans-en);--font-sans:var(--font-body);--font-display:var(--font-heading);--font-serifjp:"Zen Old Mincho",serif;--heading-1-min:2.75rem;--heading-1-max:2.875rem;--heading-1-line-height:1.15;--heading-1-letter-spacing:-0.01em;--heading-2-min:1.875rem;--heading-2-max:2rem;--heading-2-line-height:1.2;--heading-2-letter-spacing:-0.005em;--heading-3-size:1.25rem;--heading-3-line-height:1.35;--heading-3-letter-spacing:0;--body-size:1rem;--body-line-height:1.6;--body-letter-spacing:0;--body-lg-size:1.125rem;--body-lg-line-height:1.65;--body-sm-size:0.875rem;--body-sm-line-height:1.55;--body-xs-size:0.75rem;--body-xs-line-height:1.5;--tracking-wide:0.08em;--surface-page:0 0% 100%;--surface-card:210 40% 98%;--surface-float:0 0% 100%;--surface-muted-hsl:27 48% 95%;--surface-accent-hsl:27 48% 95%;--text-strong:222 84% 4%;--text-muted:215 16% 30%;--text-inverse:0 0% 100%;--brand-primary:9 59% 46%;--brand-on-primary:0 0% 100%;--brand-secondary:184 36% 63%;--brand-on-secondary:0 0% 100%;--signal-danger:0 72% 51%;--signal-on-danger:0 0% 100%;--border-subtle:218 15% 90%;--border-strong:215 16% 30%;--border-input:218 15% 90%;--focus-ring:9 59% 46%;--overlay-backdrop:rgba(var(--ink-rgb),0.55);--overlay-panel:hsl(var(--surface-card));--veil-light:rgba(255,255,255,0.16);--veil-strong:rgba(255,255,255,0.4);--veil-subtle:rgba(var(--ink-rgb),0.08)}.dark{--surface-page:222 47% 7%;--surface-card:222 42% 10%;--surface-float:222 42% 10%;--surface-muted-hsl:217 33% 18%;--surface-accent-hsl:217 33% 18%;--text-strong:210 20% 98%;--text-muted:214 15% 75%;--brand-primary:9 59% 52%;--brand-secondary:184 36% 58%;--signal-danger:0 72% 51%;--border-subtle:217 33% 18%;--border-strong:214 15% 65%;--border-input:217 33% 18%;--focus-ring:9 59% 52%;--overlay-backdrop:rgba(6,9,18,0.72);--color-bg:#0b0c0f;--color-surface:#111318;--color-text:#e5e7eb;--color-muted:#9ca3af}:lang(ja){--font-body:var(--font-sans-ja);--font-heading:var(--font-sans-ja);--heading-1-min:2.55rem;--heading-1-max:2.625rem;--heading-1-line-height:1.2;--heading-1-letter-spacing:0;--heading-2-min:1.75rem;--heading-2-max:1.875rem;--heading-2-line-height:1.3;--heading-2-letter-spacing:0;--heading-3-size:1.125rem;--heading-3-line-height:1.45;--body-line-height:1.75;--body-lg-line-height:1.7}:lang(zh),:lang(zh-CN){--font-body:var(--font-sans-zh);--font-heading:var(--font-sans-zh);--heading-1-min:2.45rem;--heading-1-max:2.5rem;--heading-1-line-height:1.2;--heading-1-letter-spacing:0;--heading-2-min:1.7rem;--heading-2-max:1.75rem;--heading-2-line-height:1.3;--heading-2-letter-spacing:0;--heading-3-size:1.125rem;--heading-3-line-height:1.45;--body-line-height:1.7;--body-lg-line-height:1.68}*,:after,:before{box-sizing:border-box;border-color:hsl(var(--border-subtle))}html{scroll-behavior:smooth;font-kerning:normal}body,html{font-family:var(--font-body)}body{min-height:100vh;margin:0;background-color:hsl(var(--surface-page));color:hsl(var(--text-strong));-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:var(--body-size);line-height:var(--body-line-height);letter-spacing:var(--body-letter-spacing);font-weight:400}h1,h2,h3{font-family:var(--font-heading);margin:0 0 .75em}h1{font-size:clamp(var(--heading-1-min),calc(var(--heading-1-min) + 1vw),var(--heading-1-max));line-height:var(--heading-1-line-height);letter-spacing:var(--heading-1-letter-spacing);font-weight:700}h2{font-size:clamp(var(--heading-2-min),calc(var(--heading-2-min) + .6vw),var(--heading-2-max));line-height:var(--heading-2-line-height);letter-spacing:var(--heading-2-letter-spacing)}h2,h3{font-weight:600}h3{font-size:var(--heading-3-size);line-height:var(--heading-3-line-height);letter-spacing:var(--heading-3-letter-spacing)}.cluster{display:flex;flex-wrap:wrap;align-items:center;gap:var(--cluster-gap,.75rem)}.cluster[data-gap=sm]{--cluster-gap:0.5rem}.cluster[data-gap=lg]{--cluster-gap:1rem}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}:focus-visible{outline-color:hsl(var(--focus-ring))}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}