*,:before,:after{box-sizing:border-box}:root{--color-indigo:#0a1e3c;--color-gold:#e69500;--color-sumi:#2f2f2f;--color-white:#fff;--color-paper:#fbfaf7;--color-mist:#eef3f7;--color-border-medium:#ccc;--color-dark-text:#111827;--color-medium-text:#4b5563;--color-vector-blue:#2f6fed;--color-vector-blue-soft:#dfe9ff;--color-amber-soft:#fff3d6;--color-line:#091b331f;--color-line-strong:#091b3333;--color-disabled-bg:#f5f5f5;--color-disabled-text:#a5a5a5;--color-indigo-dark:#14213d;--color-indigo-darker:#1a2a47;--shadow-soft:0 18px 50px #091b331a;--font-primary:"Noto Sans JP", sans-serif;--font-secondary:"Montserrat", "Noto Sans JP", sans-serif;--font-monospace:"Share Tech Mono", "Roboto Mono", ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, "DejaVu Sans Mono", monospace;--font-ui:Inter, Roboto, "Helvetica Neue", "Arial Nova", "Nimbus Sans", Arial, sans-serif;--section-padding-mobile:2rem 0;--section-padding-tablet:3rem 0;--section-padding-desktop:4rem 0;--section-padding-large:6rem 0}html,body{width:100%;font-family:var(--font-primary);color:var(--color-sumi);background:var(--color-paper);scroll-behavior:smooth;margin:0;padding:0;font-size:16px;line-height:1.6;overflow-x:hidden}h1,h2,h3,h4,h5,h6{margin:0 0 1rem;font-weight:700;line-height:1.2}h1{font-size:1.75rem}h2{font-size:1.5rem}h3{font-size:1.25rem}p{margin:0 0 1.5rem}img{max-width:100%;height:auto}a{color:var(--color-indigo);text-decoration:none;transition:color .3s}a:hover{color:var(--color-gold)}:focus-visible{outline-offset:4px;outline:3px solid #2f6fed6b}.button{cursor:pointer;text-align:center;border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;width:100%;padding:.85rem 1.35rem;font-size:1rem;font-weight:700;line-height:1.2;text-decoration:none;transition:background-color .3s,border-color .3s,box-shadow .3s,color .3s,transform .3s;display:inline-flex}.button-primary{background-color:var(--color-indigo);color:var(--color-white);border-color:var(--color-indigo);padding:.95rem 1.65rem;font-size:1.05rem;font-weight:600;box-shadow:0 12px 30px #091b332e}.button-primary:hover{background-color:var(--color-indigo-darker);color:var(--color-white);transform:translateY(-2px)}.button-secondary{background-color:var(--color-white);color:var(--color-indigo);border-color:var(--color-line-strong)}.button-secondary:hover{background-color:var(--color-amber-soft);color:var(--color-indigo);border-color:#e6950080;transform:translateY(-2px)}.button-submit{background-color:var(--color-indigo);color:var(--color-white);border-color:var(--color-indigo);padding:1rem}.button-submit:hover{background-color:var(--color-indigo-darker);color:var(--color-white)}.button:disabled,.button-primary:disabled,.button-secondary:disabled,.button-submit:disabled{background-color:var(--color-disabled-bg);color:var(--color-disabled-text);border:1px solid var(--color-border-medium);cursor:not-allowed;opacity:.7}.container{width:100%;max-width:100%;margin:0 auto;padding:0 1.25rem}section{padding:var(--section-padding-mobile)}@media (width>=481px){h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.5rem}section{padding:var(--section-padding-tablet)}.button,.button-primary,.button-secondary,.button-submit{width:auto}}@media (width>=769px){h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.75rem}section{padding:var(--section-padding-desktop)}.container{max-width:1200px}}@media (width>=1024px){section{padding:var(--section-padding-large)}}