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var(--case-line);border-bottom:1px solid var(--case-line)}.bc-case__chain-item{flex:1 1 160px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding:16px 8px;background:transparent;border-radius:0}.bc-case__chain-num{font-size:14px;font-weight:700;color:var(--case-indigo)}.bc-case__chain-item strong{font-size:17px;font-weight:700;color:var(--case-ink)}.bc-case__chain-item>span:last-child{font-size:14px;line-height:1.55;color:var(--case-muted)}.bc-case__chain-arrow{align-self:center;color:var(--case-blue);font-size:22px;font-weight:700}.bc-case__loop{display:flex;align-items:stretch;gap:10px}.bc-case__loop-step{flex:1 1 180px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding:20px 14px;background:#ffffffb3;border:1px solid var(--case-line);border-radius:var(--case-radius-sm)}.bc-case__loop-num{font-size:14px;font-weight:700;color:var(--case-teal)}.bc-case__loop-step 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p{margin:0}.bc-case__result-lead{display:inline-block;font-size:22px;font-weight:700;color:var(--case-indigo);line-height:1.2;min-width:28px}.bc-case__migrate{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:44px;font-size:15px;color:var(--case-ink)}.bc-case__migrate-label{font-weight:700;color:var(--case-teal);margin-right:4px}.bc-case__migrate-tag{font-size:14px;font-weight:600;color:var(--case-teal);background:transparent;border:1px solid var(--case-line);border-radius:999px;padding:6px 16px}.bc-case__footer-nav{border-top:1px solid var(--case-line);background:#fff;padding:64px 0}.bc-case__footer-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.bc-case__footer-back,.bc-case__footer-next{font-size:16px;font-weight:600;padding:12px 22px;border-radius:12px;border:1px solid var(--case-line)}.bc-case__footer-back{color:var(--case-ink);background:#fff}.bc-case__footer-back:hover{border-color:var(--case-indigo);color:var(--case-indigo)}.bc-case__footer-next{color:#fff;background:var(--case-hero-gradient);border-color:transparent}.bc-case__footer-next:hover{opacity:.92}@media (max-width: 900px){.bc-case__hero{min-height:auto;padding:72px 0 48px}.bc-case__hero-inner{flex-direction:column;align-items:flex-start;gap:36px}.bc-case__hero-figure{flex:1 1 auto;width:100%}.bc-case__meta{grid-template-columns:1fr;max-width:none}.bc-case__h2{font-size:30px}.bc-case__statement,.bc-case__figure-head{font-size:21px}.bc-case__section{padding:72px 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