/* IDYOCF — 線上雜誌翻頁器（PDF 如同閱讀書刊般逐頁翻閱） */
.flipbox{margin:26px 0 8px;border:1px solid var(--border,#D6E0EC);border-radius:14px;background:#fff;overflow:hidden;box-shadow:0 2px 10px rgba(10,33,56,.06)}
.fb__bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:9px 12px;border-bottom:1px solid var(--border,#D6E0EC);background:#fbfcfd}
.fb__btn{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border:1px solid var(--border,#D6E0EC);border-radius:9px;background:#fff;color:#143B66;cursor:pointer}
.fb__btn:hover{background:#eef4fa}
.fb__btn:disabled{opacity:.35;cursor:default}
.fb__btn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.fb__page{font-size:13px;color:#56657A;white-space:nowrap}
.fb__page input{width:52px;padding:4px 6px;border:1px solid var(--border,#D6E0EC);border-radius:7px;text-align:center;font:inherit;font-size:13px}
.fb__grow{flex:1 1 auto}
.fb__link{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border-radius:9px;background:#0B76B3;color:#fff;font-size:13px;text-decoration:none}
.fb__link:hover{background:#095d8d;color:#fff}
.fb__link svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.fb__stage{position:relative;display:flex;justify-content:center;align-items:stretch;gap:2px;padding:14px;background:linear-gradient(180deg,#eef3f8,#e3ebf3);min-height:320px}
.fb__pages{display:flex;gap:6px;align-items:flex-start;justify-content:center;width:100%}
.fb__sheet{background:#fff;border-radius:4px;box-shadow:0 6px 18px rgba(10,33,56,.18);overflow:hidden;line-height:0}
.fb__sheet canvas{display:block;width:100%;height:auto}
.fb__nav{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:0;background:rgba(255,255,255,.94);color:#0A2138;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 2px 10px rgba(10,33,56,.22)}
.fb__nav svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.fb__nav--prev{left:10px}
.fb__nav--next{right:10px}
.fb__thumbs{display:none;gap:8px;overflow-x:auto;padding:10px 12px;border-top:1px solid var(--border,#D6E0EC);background:#fbfcfd}
.fb__thumbs.on{display:flex}
.fb__thumb{flex:0 0 auto;width:64px;border:1px solid var(--border,#D6E0EC);border-radius:5px;background:#fff;padding:0;cursor:pointer;overflow:hidden}
.fb__thumb.is-cur{border-color:#0B76B3;box-shadow:0 0 0 2px rgba(11,118,179,.25)}
.fb__thumb canvas{display:block;width:100%;height:auto}
.fb__thumb b{display:block;font-size:10.5px;color:#56657A;text-align:center;padding:2px 0;background:#fff;font-weight:600}
.fb__msg{padding:26px 16px;text-align:center;color:#56657A;font-size:14px}
.fb__loading{display:inline-block;width:16px;height:16px;border:2px solid #c9d6e4;border-top-color:#0B76B3;border-radius:50%;animation:fbspin .8s linear infinite;vertical-align:-3px;margin-right:8px}
@keyframes fbspin{to{transform:rotate(360deg)}}
.fb__hint{padding:8px 14px;border-top:1px solid var(--border,#D6E0EC);font-size:12.5px;color:#6b7c8f;background:#fff}
.flipbox:fullscreen{background:#fff}
.flipbox:fullscreen .fb__stage{min-height:70vh}

/* ---- 小標題：線上雜誌 ---- */
.flipwrap{margin-top:30px}
.flipwrap__h{font-family:var(--font-display,Fraunces,serif);font-size:21px;font-weight:600;color:#0A2138;margin:0 0 12px}

/* ---- 責任部門／編輯 ---- */
.detail__credit{margin:0 0 14px;font-size:13px;color:#56657A;letter-spacing:.02em}
.detail__credit .zh,.detail__credit .en{margin-right:14px;display:inline}
.detail__credit .zh::before,.detail__credit .en::before{content:"· ";color:#9fb0c2}

/* ---- 編輯器正文（richtext） ---- */
.richtext{line-height:1.85}
.richtext p{margin:0 0 14px}
.richtext h2,.richtext h3,.richtext h4{font-family:var(--font-display,Fraunces,serif);color:#0A2138;margin:22px 0 10px;line-height:1.3}
.richtext h2{font-size:22px}
.richtext h3{font-size:19px}
.richtext h4{font-size:16.5px}
.richtext ul,.richtext ol{margin:0 0 14px;padding-left:22px}
.richtext li{margin:0 0 6px}
.richtext blockquote{margin:16px 0;padding:10px 16px;border-left:3px solid #C8A24A;background:#FBF7EF;color:#3d4b5c}
.richtext a{color:#0B76B3;text-decoration:underline}
.richtext img,.richtext video{max-width:100%;height:auto;border-radius:10px;margin:14px 0;display:block}
.richtext iframe{width:100%;aspect-ratio:16/9;height:auto;border:0;border-radius:10px;margin:14px 0;display:block}
.richtext .embed-video{position:relative;width:100%;padding-top:56.25%;margin:14px 0;border-radius:10px;overflow:hidden;background:#000}
.richtext .embed-video iframe{position:absolute;top:0;left:0;width:100%;height:100%;margin:0;border:0;border-radius:0}
.richtext figure{margin:16px 0}
.richtext figcaption{font-size:12.5px;color:#6b7c8f;margin-top:6px;text-align:center}

/* ---- 活動網上報名 ---- */
.regbox{border:1px solid var(--border,#D6E0EC);border-radius:14px;background:#fff;padding:20px 22px;margin:26px 0 6px;box-shadow:0 2px 10px rgba(10,33,56,.06)}
.regbox__h{font-family:var(--font-display,Fraunces,serif);font-size:20px;font-weight:600;color:#0A2138;margin:0 0 8px}
.regbox__note{font-size:13.5px;color:#56657A;margin:0 0 14px;display:flex;flex-wrap:wrap;gap:4px 18px}
.reg-form .grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.reg-form .field{margin-bottom:12px}
.reg-form .field label{display:block;font-size:13px;font-weight:600;color:#3d4b5c;margin-bottom:5px}
.reg-form .field input,.reg-form .field textarea,.reg-form .field select{
  width:100%;padding:10px 12px;border:1px solid var(--border,#D6E0EC);border-radius:9px;font:inherit;font-size:14.5px;background:#fff;color:#1d2b39}
.reg-form .field input:focus,.reg-form .field textarea:focus,.reg-form .field select:focus{
  outline:2px solid rgba(11,118,179,.35);outline-offset:1px;border-color:#0B76B3}
.reg-form .field textarea{min-height:96px;resize:vertical}
.reg-form .q{margin:0 0 12px;border:1px solid var(--border,#D6E0EC);border-radius:10px;padding:12px 14px;background:#fbfcfd}
.reg-form .q__title{font-weight:600;font-size:14.5px;color:#0A2138;margin-bottom:8px}
.reg-form .q__title .n{color:#0B76B3;margin-right:6px}
.reg-form .q__title .req{color:#c0392b}
.reg-form .q__opts{display:flex;flex-wrap:wrap;gap:8px 18px}
.reg-form .q__opts label{display:inline-flex;align-items:center;gap:7px;font-size:14px;cursor:pointer}
.reg-form .rowflex{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.reg-form .form-ok{margin-top:12px}
.reg-form .form-ok.is-err{background:#fdecec;border:1px solid #f2c0c0;color:#a02c2c}
.reg-form .btn[disabled]{opacity:.6;cursor:default}
@media(max-width:640px){
  .reg-form .grid2{grid-template-columns:1fr}
  .regbox{padding:16px}
}
@media(max-width:700px){
  .fb__stage{padding:8px}
  .fb__nav--prev{left:2px}
  .fb__nav--next{right:2px}
  .fb__bar{gap:6px;padding:8px}
}