/* engineering-basics 拆頁樣式（Claude，2026-10-15）：只作用於新增的 eb- 類別，原有區塊樣式不動 */
.eb-pick,.eb-small,.eb-unit,.eb-wb-title{max-width:1100px;margin-left:auto;margin-right:auto;padding-left:16px;padding-right:16px;box-sizing:border-box}
.eb-pick{margin-top:8px}
.eb-pick h2{margin:0 0 8px;font-size:1.3rem}
.eb-primary-wrap{margin:0 0 12px}
.eb-primary{display:inline-flex;align-items:center;min-height:48px}
.eb-cards{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px}
.eb-card-link{display:grid;grid-template-columns:96px 1fr auto;gap:10px;align-items:center;padding:8px;border:1px solid #d9d4c8;border-radius:14px;background:#fff;color:inherit;text-decoration:none;box-shadow:0 2px 6px rgba(0,0,0,.06);min-height:72px}
.eb-card-link:hover,.eb-card-link:focus-visible{border-color:#f58220;box-shadow:0 4px 12px rgba(245,130,32,.18)}
.eb-card-link .eb-fig{display:block;width:96px}
.eb-card-link .eb-fig svg{display:block;width:100%;height:auto;border-radius:8px}
.eb-card-body{display:flex;flex-direction:column;gap:2px;min-width:0}
.eb-card-body b{font-size:1rem}
.eb-card-body span{font-size:.85rem;color:#5b6778;overflow-wrap:anywhere}
.eb-meta{font-size:.75rem!important}
.eb-go{font-weight:800;color:#c2560a;white-space:nowrap}
.eb-done{border-color:#1f8a5b}
.eb-done .eb-go::after{content:" ✓"}
.eb-small{margin-top:16px}
.eb-small-title{font-size:1rem;margin:0 0 6px}
.eb-small-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:8px}
.eb-mini{border:1px solid #d9d4c8;border-radius:12px;background:#fff;padding:8px 12px;min-width:0}
.eb-mini>summary{cursor:pointer;font-weight:700;min-height:32px;display:flex;align-items:center}
.eb-mini aside,.eb-mini section{margin:8px 0!important;max-width:100%!important}
.eb-more{margin:8px 0}
.eb-more>summary{cursor:pointer;font-weight:700;color:#1458a6}
.eb-unit-head{margin:8px 0 16px}
.eb-unit-head h1{font-size:clamp(1.3rem,4.6vw,2rem);line-height:1.3;margin:4px 0 10px}
.eb-fig-hero{max-width:560px}
.eb-fig-hero svg{display:block;width:100%;height:auto;border-radius:12px;border:1px solid #d9d4c8}
.eb-steps{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:12px 0 0;counter-reset:eb}
.eb-steps li{counter-increment:eb}
.eb-steps a{display:inline-flex;align-items:center;gap:4px;min-height:36px;padding:0 12px;border-radius:999px;border:1px solid #d9d4c8;background:#fff;color:inherit;text-decoration:none;font-weight:700}
.eb-steps a::before{content:counter(eb);display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:#0b2d62;color:#fff;font-size:12px}
.eb-stage{margin:24px 0;scroll-margin-top:80px}
.eb-stage>h2{display:flex;align-items:center;gap:8px;font-size:1.2rem;margin:0 0 10px}
.eb-step{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:#f58220;color:#fff;font-size:15px;flex:0 0 auto}
.eb-tip{background:#fff7ec;border:1px solid #f3c98f;border-radius:10px;padding:8px 12px}
.eb-recall-list{padding-left:0;list-style:none;display:grid;gap:10px}
.eb-rc{border:1px solid #d9d4c8;border-radius:12px;background:#fff;padding:10px 12px}
.eb-rc-q{font-weight:700;margin:0 0 8px}
.eb-rc-a p{margin:6px 0}
.eb-rc-rate{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
.eb-rc-rate button{min-height:40px;border-radius:10px;border:1px solid #c9c3b6;background:#fbfaf6;font:inherit;font-weight:700;cursor:pointer}
.eb-rc-rate button[aria-pressed="true"]{background:#0b2d62;color:#fff;border-color:#0b2d62}
.eb-small{font-size:.85rem;color:#5b6778}
.eb-next{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}
.eb-wb-title{font-size:clamp(1.3rem,4.6vw,2rem);margin-top:8px}
/* 主站目前只有淺色版面；系統深色時維持淺色，與原頁一致 */
@media (max-width:560px){.eb-card-link{grid-template-columns:72px 1fr auto}.eb-card-link .eb-fig{width:72px}}
@media print{.eb-steps,.eb-next,.eb-rc-flip{display:none}}
.eb-rc-rate button{white-space:nowrap;font-size:.9rem;padding:0 4px}
.eb-cases>summary{min-height:44px;display:flex;align-items:center}
.eb-next-note{font-size:.85rem;color:#5b6778;margin:-12px 0 24px;overflow-wrap:anywhere}