.fb-au-calc{
  --fb-au-bg:#f7f8fa;
  --fb-au-card:#fff;
  --fb-au-text:#15171a;
  --fb-au-sub:#62676f;
  --fb-au-line:#e3e6ea;
  --fb-au-accent:#d71920;
  --fb-au-accent-dark:#a80f14;
  --fb-au-dark:#17191d;
  --fb-au-good:#137333;
  --fb-au-amz:#167f96;
  max-width:860px;
  margin:28px auto;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
  color:var(--fb-au-text);
  line-height:1.65
}
.fb-au-calc *{box-sizing:border-box}
.fb-au-shell{border:1px solid var(--fb-au-line);border-radius:18px;overflow:hidden;background:var(--fb-au-card);box-shadow:0 12px 34px rgba(0,0,0,.07)}
.fb-au-head{padding:24px 26px;background:var(--fb-au-dark);color:#fff}
.fb-au-kicker{display:inline-block;margin-bottom:7px;padding:3px 9px;border:1px solid rgba(255,255,255,.28);border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.04em}
.fb-au-head h2{margin:0;color:#fff;font-size:clamp(22px,4vw,32px);line-height:1.35}
.fb-au-head p{margin:9px 0 0;color:#d8dadd;font-size:14px}
.fb-au-body{padding:24px 26px 28px;background:var(--fb-au-bg)}
.fb-au-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.fb-au-field{background:#fff;border:1px solid var(--fb-au-line);border-radius:12px;padding:13px}
.fb-au-field label{display:block;margin-bottom:6px;font-size:13px;font-weight:800}
.fb-au-help{display:block;margin-top:5px;color:var(--fb-au-sub);font-size:11px;font-weight:400}
.fb-au-input-wrap{display:flex;align-items:center;gap:8px}
.fb-au-input-wrap input{width:100%;min-width:0;border:1px solid #cfd4da;border-radius:9px;padding:11px 12px;background:#fff;color:var(--fb-au-text);font:inherit;font-size:16px;outline:none}
.fb-au-input-wrap input:focus{border-color:#6c737d;box-shadow:0 0 0 3px rgba(0,0,0,.06)}
.fb-au-unit{flex:0 0 auto;color:var(--fb-au-sub);font-size:13px;font-weight:700}
.fb-au-live-note{margin-top:11px;color:var(--fb-au-sub);font-size:12px}
.fb-au-actions{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0 18px}
.fb-au-actions button{appearance:none;border-radius:10px;padding:10px 15px;font:inherit;font-weight:800;cursor:pointer}
.fb-au-secondary{background:#fff;color:var(--fb-au-text);border:1px solid var(--fb-au-line)}
.fb-au-results{margin-top:18px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.fb-au-result{border:1px solid var(--fb-au-line);border-radius:12px;background:#fff;padding:14px 15px}
.fb-au-result.fb-au-main{grid-column:1/-1;border:2px solid var(--fb-au-accent);padding:17px}
.fb-au-result-name{color:var(--fb-au-sub);font-size:12px;font-weight:800}
.fb-au-result-value{margin-top:3px;font-size:clamp(20px,3.4vw,28px);font-weight:950;line-height:1.25;letter-spacing:.01em}
.fb-au-main .fb-au-result-value{color:var(--fb-au-accent);font-size:clamp(28px,5vw,40px)}
.fb-au-note{margin-top:15px;padding:13px 14px;border-radius:10px;background:#fff;border:1px solid var(--fb-au-line);color:var(--fb-au-sub);font-size:12px}
.fb-au-status{min-height:20px;margin-top:8px;color:var(--fb-au-good);font-size:12px;font-weight:700}

.fb-au-detail{margin-top:18px;border:1px solid var(--fb-au-line);border-radius:12px;background:#fff;overflow:hidden}
.fb-au-detail summary{cursor:pointer;list-style:none;padding:15px 16px;font-weight:900}
.fb-au-detail summary::-webkit-details-marker{display:none}
.fb-au-detail summary::after{content:"＋";float:right;font-weight:700}
.fb-au-detail[open] summary::after{content:"－"}
.fb-au-advanced{padding:0 14px 16px}
.fb-au-advanced-lead{margin:0 0 13px;color:var(--fb-au-sub);font-size:13px}
.fb-au-detail-results{margin-top:14px}
.fb-au-detail-results .fb-au-result-value{font-size:clamp(18px,3vw,26px)}

.fb-au-revcal{margin-top:22px}
.fb-au-revcal-head{padding:20px;border-radius:14px;background:#fff;border:1px solid var(--fb-au-line);text-align:center}
.fb-au-section-badge{display:inline-block;padding:3px 9px;border-radius:999px;background:#eef8fa;color:#0e6d80;font-size:11px;font-weight:900}
.fb-au-revcal-head h3{margin:9px 0 7px;font-size:21px;line-height:1.45}
.fb-au-revcal-head p{margin:0 auto 14px;max-width:650px;color:var(--fb-au-sub);font-size:13px}
.fb-au-revcal-btn{display:inline-block;width:min(100%,520px);padding:14px 18px;border-radius:10px;background:var(--fb-au-amz);color:#fff!important;text-decoration:none!important;font-weight:900}
.fb-au-revcal-btn:hover{filter:brightness(.94)}
.fb-au-login-note{margin-top:8px;color:var(--fb-au-sub);font-size:11px}

.fb-au-manual{margin-top:16px;padding:20px;border-radius:14px;background:#fff;border:1px solid var(--fb-au-line)}
.fb-au-manual>h3{margin:0;font-size:22px}
.fb-au-manual-lead{margin:5px 0 18px;color:var(--fb-au-sub);font-size:13px}
.fb-au-step{margin-top:22px;padding-top:22px;border-top:1px solid var(--fb-au-line)}
.fb-au-step:first-of-type{margin-top:0;padding-top:0;border-top:0}
.fb-au-step-title{display:flex;align-items:center;gap:10px;margin-bottom:7px}
.fb-au-step-title span{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:var(--fb-au-dark);color:#fff;font-size:15px;font-weight:900;flex:0 0 auto}
.fb-au-step-title strong{font-size:17px}
.fb-au-step p{margin:0 0 11px;color:#41464d;font-size:13px}
.fb-au-step a{display:block}
.fb-au-step img{display:block;width:100%;height:auto;border:1px solid #d9dde2;border-radius:8px;background:#fff}
.fb-au-tip{margin-top:22px;padding:15px;border-radius:10px;background:#f7fafb;border:1px solid #dfe7e9}
.fb-au-tip>strong{display:block;margin-bottom:10px;font-size:15px}
.fb-au-tip-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.fb-au-tip-grid div{padding:11px;background:#fff;border:1px solid var(--fb-au-line);border-radius:8px}
.fb-au-tip-grid span{display:block;color:var(--fb-au-amz);font-size:13px;font-weight:900}
.fb-au-tip-grid b{display:block;margin-top:2px;font-size:12px}

.fb-au-cta{margin-top:18px;border-radius:14px;background:#fff;border:1px solid var(--fb-au-line);padding:18px;text-align:center}
.fb-au-cta strong{display:block;margin-bottom:6px;font-size:18px}
.fb-au-cta p{margin:0 0 12px;color:var(--fb-au-sub);font-size:13px}
.fb-au-line-btn{display:inline-block;width:min(100%,420px);padding:13px 18px;border-radius:10px;background:#06c755;color:#fff!important;text-decoration:none!important;font-weight:900}
.fb-au-line-btn:hover{filter:brightness(.94)}
.fb-au-mini{margin-top:9px;color:var(--fb-au-sub);font-size:10px}


.fb-au-case{margin-top:18px;padding:20px;border-radius:14px;background:#fff;border:1px solid var(--fb-au-line)}
.fb-au-case>h3{margin:0;font-size:22px;line-height:1.45}
.fb-au-case-lead{margin:6px 0 18px;color:var(--fb-au-sub);font-size:13px}
.fb-au-case-summary{margin-top:20px;padding:16px;border-radius:12px;background:#fff7f7;border:1px solid #f0d7d7}
.fb-au-case-summary strong{display:block;margin-bottom:6px;font-size:16px}
.fb-au-case-summary p{margin:0;color:#333;font-size:14px;line-height:1.8}

@media (max-width:640px){
  .fb-au-calc{margin:18px auto}
  .fb-au-head,.fb-au-body{padding:20px 16px}
  .fb-au-grid,.fb-au-results,.fb-au-tip-grid{grid-template-columns:1fr}
  .fb-au-result.fb-au-main{grid-column:auto}
  .fb-au-actions button{width:100%}
  .fb-au-manual,.fb-au-revcal-head{padding:16px}
  .fb-au-revcal-head h3,.fb-au-manual>h3{font-size:19px}
}