.useful-guide{box-sizing:border-box;max-width:1120px;width:calc(100% - 32px);margin:32px auto;padding:clamp(18px,4vw,36px);border:1px solid #79898b;border-radius:18px;color:inherit;line-height:1.65;text-align:left;scroll-margin-top:100px}.useful-guide *{box-sizing:border-box}.useful-guide h2{font-size:clamp(24px,3vw,32px);line-height:1.25;margin:0 0 18px}.useful-guide h3{font-size:21px;line-height:1.35;margin:24px 0 10px}.useful-guide p{max-width:85ch;margin:10px 0 18px}.useful-guide a{color:inherit;text-decoration:underline;text-underline-offset:3px}.useful-guide label{display:block;font-weight:600;margin:15px 0}.useful-guide select,.useful-guide input{display:block;font:inherit;font-weight:400;width:100%;min-height:46px;background:#fff;color:#17292f;border:1px solid #61747b;border-radius:7px;padding:9px;margin-top:7px}.useful-guide fieldset{min-width:0;border:1px solid #79898b;border-radius:10px;padding:16px}.useful-guide legend{font-weight:700;padding:0 6px}.useful-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.useful-result{border-left:4px solid #60857b;padding:10px 18px;margin:22px 0;background:rgba(120,145,130,.09)}.useful-guide small{display:block;line-height:1.5}.useful-guide li{margin:8px 0}.useful-guide button{font:inherit;border:1px solid #61747b;border-radius:8px;padding:10px 18px;cursor:pointer;background:#fff;color:#17292f}.useful-guide button:focus-visible,.useful-guide input:focus-visible,.useful-guide select:focus-visible{outline:3px solid #267fac;outline-offset:3px}.useful-guide .useful-confirm input{display:inline-block;width:22px;min-height:22px;height:22px;vertical-align:middle;margin:0 10px 0 0}.useful-guide output{display:block}@media(max-width:680px){.useful-grid{grid-template-columns:1fr}}@media print{.useful-guide button{display:none}}
