:root{color:#173b69;background:#edf6fc;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;--ckas-accent:#0879de;--ckas-accent-soft:#e8f4ff;--blue:var(--ckas-accent);--ink:#173b69;--muted:#5f7890;--line:#d7e6f2}:root[data-color-theme=teal]{--ckas-accent:#0f8f8a;--ckas-accent-soft:#e3f5f3}:root[data-color-theme=violet]{--ckas-accent:#7656d8;--ckas-accent-soft:#f0ecff}:root[data-color-theme=coral]{--ckas-accent:#d65a3f;--ckas-accent-soft:#fff0ec}:root[data-color-theme=rose]{--ckas-accent:#cf4775;--ckas-accent-soft:#ffedf3}*{box-sizing:border-box}html{background:var(--ckas-accent)}body{min-width:320px;min-height:100vh;margin:0;background:linear-gradient(180deg,#f8fcff,#edf6fc)}a{color:var(--ckas-accent);text-underline-offset:3px}.info-header{max-width:760px;margin:auto;padding:calc(22px + env(safe-area-inset-top)) 20px 16px;display:flex;align-items:center;gap:14px}.info-header .ckas-back-button{width:44px;height:44px;flex:0 0 44px;padding:0;display:grid;place-items:center;border:1px solid color-mix(in srgb,var(--ckas-accent) 78%,#fff);border-radius:15px;color:#fff;background:var(--ckas-accent);font-size:22px;text-decoration:none;box-shadow:0 9px 20px color-mix(in srgb,var(--ckas-accent) 28%,transparent),inset 0 1px 0 rgba(255,255,255,.3);transition:transform .16s ease,box-shadow .16s ease,filter .16s ease}.info-header .ckas-back-button:hover{filter:saturate(1.08) brightness(1.04);transform:translateY(-1px);box-shadow:0 12px 24px color-mix(in srgb,var(--ckas-accent) 32%,transparent),inset 0 1px 0 rgba(255,255,255,.34)}.info-header .ckas-back-button:active{transform:translateY(1px) scale(.98)}.info-header .ckas-back-button:focus-visible{outline:3px solid color-mix(in srgb,var(--ckas-accent) 28%,transparent);outline-offset:3px}.info-header .ckas-back-button>span{display:grid;place-items:center;width:21px;height:21px;margin:0;padding:0;line-height:1;transform:translateX(1px)}.info-header .ckas-wordmark{display:block;white-space:nowrap;color:var(--ink);font:700 15px/1 Arial,sans-serif;letter-spacing:-.045em}.info-header .ckas-wordmark strong{display:inline!important;margin:0!important;padding:0!important;color:var(--ckas-accent)!important;font:inherit!important;letter-spacing:inherit!important}.info-header>div>strong{display:block;margin-top:4px;color:var(--ink);font-size:19px;line-height:1.2}.language-toggle{margin-left:auto;min-width:52px;height:38px;padding:0 12px;border:1px solid color-mix(in srgb,var(--ckas-accent) 30%,#fff);border-radius:11px;color:var(--ckas-accent);background:#fff;font:inherit;font-size:12px;font-weight:800;cursor:pointer}.language-toggle:focus-visible{outline:3px solid color-mix(in srgb,var(--ckas-accent) 25%,transparent);outline-offset:2px}.info-main{max-width:760px;margin:0 auto;padding:8px 20px 60px}.info-card{padding:clamp(22px,5vw,42px);border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 12px 36px rgba(23,59,105,.07)}html[data-language=en] [data-lang-panel=ja],html:not([data-language=en]) [data-lang-panel=en]{display:none}h1{margin:0 0 14px;font-size:clamp(28px,6vw,42px);letter-spacing:-.04em}h2{margin:32px 0 9px;font-size:20px}h3{margin:23px 0 7px;font-size:16px}p,li{color:var(--muted);font-size:14px;line-height:1.9}.lead{font-size:16px}.meta{margin-top:28px;font-size:12px}.info-links{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px 18px;font-size:13px;font-weight:700}.contact-box{margin:20px 0;padding:20px;border-radius:14px;background:var(--ckas-accent-soft)}.contact-box a{font-weight:800}@media(max-width:520px){.info-header{padding-inline:14px}.info-main{padding-inline:12px}.info-card{padding:23px 18px;border-radius:16px}}@media(prefers-reduced-motion:reduce){.info-header .ckas-back-button{transition:none}}