/* 網站報名頁（/tours/<slug>/book）；只在報名頁載入 */
.bk { padding: 108px 0 72px; }
.bk-head { margin-bottom: 24px; }
.bk-back { display: block; width: fit-content; font-size: 14px; color: var(--muted); margin-bottom: 14px; }
.bk-sub { margin: -14px 0 22px; color: var(--muted); font-size: 16px; }
.bk-back:hover { color: var(--ink); }
.bk-head h1 { font-family: var(--font-display); font-size: clamp(28px, 4vw, 44px); font-weight: 900; line-height: 1.1; margin: 8px 0 22px; word-break: keep-all; overflow-wrap: anywhere; }

.bk-steps { list-style: none; margin: 0; padding: 0; display: flex; gap: 6px; }
.bk-steps li { flex: 1; display: flex; align-items: center; gap: 8px; padding: 10px 12px; border-radius: 14px; background: var(--white); box-shadow: 0 1px 0 var(--line); font-size: 14px; color: var(--muted); min-width: 0; }
.bk-steps i { flex: none; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-style: normal; font-weight: 800; font-size: 13px; background: var(--stone); color: var(--muted); font-family: var(--font-display); }
.bk-steps span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bk-steps li.on { color: var(--ink); font-weight: 700; box-shadow: inset 0 0 0 2px var(--ink); }
.bk-steps li.on i { background: var(--yellow); color: var(--ink); }
.bk-steps li.ok i { background: var(--ink); color: #fff; }

.bk-grid { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 24px; align-items: start; }
.bk-grid.solo { grid-template-columns: minmax(0, 780px); }
.bk-main { min-width: 0; }
.bk-card { background: var(--white); border-radius: var(--r-lg); padding: clamp(20px, 3vw, 32px); box-shadow: 0 1px 0 var(--line); display: grid; gap: 28px; }
.bk-block h2, .bk-person legend, .bk-rules summary { font-family: var(--font-display); font-weight: 800; }
.bk-block h2 { font-size: 21px; line-height: 1.3; margin: 0 0 6px; }
.bk-lead { color: var(--muted); font-size: 15px; margin: 0 0 14px; }
.bk-hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

/* 後台寫的報名備註 */
.bk-note { padding: 14px 16px; border-radius: 16px; background: #fff6c2; box-shadow: inset 0 0 0 1.5px var(--yellow-deep); font-size: 15px; }
.bk-note b { display: block; font-size: 14px; margin-bottom: 2px; }
.bk-note p { margin: 0; white-space: pre-line; color: var(--ink-soft); }

/* 拼團 / 私人團 */
.bk-type { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.bk-type button { text-align: left; border: 0; border-radius: 16px; padding: 14px 16px; background: var(--stone); display: grid; gap: 2px; }
.bk-type button b { font-size: 16px; }
.bk-type button small { color: var(--muted); font-size: 13px; line-height: 1.45; }
.bk-type button.on { background: var(--ink); color: #fff; }
.bk-type button.on small { color: rgba(255, 255, 255, 0.7); }

/* 日期 */
.bk-any { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-radius: 16px; background: var(--stone); cursor: pointer; margin-bottom: 8px; }
.bk-any.on { background: #fff6c2; box-shadow: inset 0 0 0 2px var(--yellow-deep); }
.bk-any input, .bk-check input { width: 20px; height: 20px; margin: 2px 0 0; flex: none; accent-color: var(--ink); }
.bk-any span { display: grid; }
.bk-any small { color: var(--muted); font-size: 13px; }
.bk-month h3 { font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); font-weight: 800; margin: 20px 0 8px; font-family: var(--font-display); }
.bk-dates { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.bk-dates button { width: 100%; display: grid; grid-template-columns: 30px minmax(0, 1fr) auto auto; gap: 12px; align-items: center; text-align: left; border: 0; border-radius: 14px; padding: 12px 14px; background: var(--white); box-shadow: inset 0 0 0 1.5px var(--line); transition: box-shadow 0.15s, background 0.15s; }
.bk-dates button:hover { box-shadow: inset 0 0 0 1.5px var(--ink); }
.bk-dates button.on { background: #fffbe0; box-shadow: inset 0 0 0 2px var(--ink); }
.bk-ord { width: 28px; height: 28px; border-radius: 50%; box-shadow: inset 0 0 0 1.5px var(--line); display: grid; place-items: center; font-style: normal; font-weight: 800; font-family: var(--font-display); }
.on > .bk-ord { background: var(--ink); color: var(--yellow); box-shadow: none; }
.bk-d { display: grid; min-width: 0; }
.bk-d b { font-size: 16px; }
.bk-d small { color: var(--muted); font-size: 13px; }
.bk-backup { display: block; color: var(--muted); font-size: 13px; line-height: 1.45; }
.bk-backup .nw { white-space: nowrap; }
.bk-left { font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; background: var(--stone); white-space: nowrap; }
.bk-left.hot { background: #fde3e3; color: var(--red); }
.bk-p { display: grid; grid-template-columns: auto auto; column-gap: 8px; align-items: baseline; font-weight: 800; font-family: var(--font-display); font-size: 14px; text-align: right; white-space: nowrap; }
.bk-p small { font-weight: 500; font-size: 11px; color: var(--muted); font-family: var(--font-body); }

/* 欄位 */
.bk-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
.bk-field { display: grid; gap: 6px; align-content: start; min-width: 0; }
.bk-field.wide { grid-column: 1 / -1; }
.bk-field > span { font-size: 14px; font-weight: 700; }
.bk-field em { font-style: normal; font-weight: 400; color: var(--muted); }
.bk input:not([type=checkbox]):not([type=file]), .bk select, .bk textarea {
  width: 100%; box-sizing: border-box; font: inherit; font-size: 16px; color: var(--ink); background: var(--white);
  border: 0; border-radius: 12px; padding: 12px 14px; min-height: 48px; box-shadow: inset 0 0 0 1.5px var(--line); transition: box-shadow 0.15s;
}
.bk textarea { resize: vertical; line-height: 1.5; }
.bk input:focus, .bk select:focus, .bk textarea:focus { outline: none; box-shadow: inset 0 0 0 2px var(--ink); }
.bk-field:has(.bk-err) input, .bk-field:has(.bk-err) select, .bk-field:has(.bk-err) textarea { box-shadow: inset 0 0 0 2px var(--red); }
.bk-mt { margin-top: 6px; }
.bk-field > label { font-size: 14px; font-weight: 700; }
.bk-phone { display: grid; grid-template-columns: minmax(0, 132px) minmax(0, 1fr); gap: 6px; }
.bk-hint { color: var(--muted); font-size: 13px; line-height: 1.45; }
.bk-desc { margin-top: -3px; white-space: pre-line; }
.bk-err { color: var(--red); font-size: 13px; font-weight: 700; display: block; }
.bk-seg { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.bk-seg button { min-height: 48px; border: 0; border-radius: 12px; background: var(--white); box-shadow: inset 0 0 0 1.5px var(--line); font-weight: 700; }
.bk-seg button.on { background: var(--ink); color: #fff; box-shadow: none; }
.bk-years { grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 420px; }
.bk-sublabel { display: block; font-size: 14px; font-weight: 700; margin-top: 4px; }

/* 團員 */
.bk-person { border: 0; margin: 0; padding: 18px; border-radius: 20px; background: var(--stone); min-width: 0; }
.bk-person legend { float: left; width: 100%; display: flex; justify-content: space-between; align-items: center; font-size: 17px; margin-bottom: 14px; padding: 0; }
.bk-person legend span { display: flex; align-items: center; gap: 10px; }
.bk-person legend i { width: 28px; height: 28px; border-radius: 50%; background: var(--ink); color: var(--yellow); display: grid; place-items: center; font-style: normal; font-size: 14px; }
.bk-person .bk-fields { clear: both; }
.bk-x { border: 0; background: none; color: var(--muted); font-size: 14px; text-decoration: underline; padding: 6px; }
.bk-add { border: 0; border-radius: 16px; padding: 16px; background: none; box-shadow: inset 0 0 0 1.5px dashed var(--line); outline: 2px dashed var(--line); outline-offset: -2px; font-weight: 700; font-size: 16px; }
.bk-add:hover { outline-color: var(--ink); }

/* 確認 */
.bk-review { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 10px 14px; margin: 0; font-size: 15px; }
.bk-review dt { color: var(--muted); }
.bk-review dd { margin: 0; }
.bk-review ol { margin: 0; padding-left: 20px; }
.bk-link { border: 0; background: none; padding: 0; text-decoration: underline; font-size: 14px; color: var(--ink); }
.bk-rules { border-radius: 16px; background: var(--stone); padding: 14px 18px; }
.bk-rules summary { cursor: pointer; font-size: 16px; }
.bk-rich { max-height: 360px; overflow: auto; margin-top: 10px; font-size: 14px; }
.bk-rich h4 { margin: 14px 0 4px; font-size: 15px; }
.bk-rich p { margin: 0; white-space: pre-line; color: var(--ink-soft); }
.bk-agree { display: grid; gap: 12px; }
.bk-check { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; line-height: 1.55; cursor: pointer; }
.bk-check a { text-decoration: underline; font-weight: 700; }
.bk-fine { color: var(--muted); font-size: 13px; margin: 0; }
.bk-fine a { text-decoration: underline; }
.bk-fail { background: #fde3e3; color: var(--red); font-weight: 700; padding: 12px 16px; border-radius: 12px; margin: 0; }

.bk-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 18px; }
.bk-nav .btn[disabled], .bk-mbar .btn[disabled] { opacity: 0.6; pointer-events: none; }

/* 摘要 */
.bk-side { position: sticky; top: 96px; }
.bk-sum { background: var(--white); border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow); }
.bk-sum > img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; }
.bk-sum-b { padding: 18px 20px 20px; display: grid; gap: 4px; }
.bk-sum-t { font-size: 18px; line-height: 1.3; }
.bk-sum-b > small { color: var(--muted); font-size: 13px; }
.bk-sum dl { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px 12px; margin: 12px 0 0; font-size: 14px; }
.bk-sum dt { color: var(--muted); }
.bk-sum dd { margin: 0; text-align: right; font-weight: 700; }
.bk-sum dd small { font-weight: 400; color: var(--muted); }
.bk-total { margin-top: 14px; padding: 14px 16px; border-radius: 14px; background: var(--ink); color: #fff; display: grid; }
.bk-total span { font-size: 13px; color: rgba(255, 255, 255, 0.7); }
.bk-total b { font-family: var(--font-display); font-size: 26px; line-height: 1.2; color: var(--yellow); }
.bk-total small { font-size: 12px; color: rgba(255, 255, 255, 0.6); }
.bk-total.soft { background: var(--stone); color: var(--ink); }
.bk-total.soft span, .bk-total.soft small { color: var(--muted); }
.bk-total.soft b { color: var(--ink); font-size: 20px; }
.bk-help { font-size: 14px; color: var(--muted); margin: 14px 4px 0; }
.bk-help a { color: var(--ink); font-weight: 700; }

/* 完成 */
.bk-ok { text-align: center; display: grid; justify-items: center; gap: 4px; }
.bk-ok > i { width: 64px; height: 64px; border-radius: 50%; background: var(--yellow); display: grid; place-items: center; font-style: normal; font-size: 30px; font-weight: 900; }
.bk-ok h2 { font-family: var(--font-display); font-size: 28px; margin: 10px 0 0; }
.bk-ok p { margin: 0; color: var(--muted); }
.bk-ok .bk-lead { max-width: 46ch; margin-top: 8px; }
.bk-ref { display: flex; align-items: center; gap: 10px; padding: 10px 10px 10px 20px; border-radius: 14px; background: var(--stone); margin-top: 4px; }
.bk-ref b { font-family: var(--font-display); font-size: 24px; letter-spacing: 0.06em; }
.bk-copy { border: 0; border-radius: 10px; padding: 6px 12px; background: var(--ink); color: #fff; font-size: 13px; font-weight: 700; }
.bk-amt { font-size: 16px; margin: 0 0 10px; }
.bk-amt b { font-family: var(--font-display); font-size: 22px; }
.bk-amt small { color: var(--muted); }
.bk-notes { margin: 0 0 16px; padding-left: 20px; font-size: 14px; display: grid; gap: 4px; }
.bk-pay { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 14px; margin-bottom: 12px; }
.bk-bank, .bk-qr { background: var(--stone); border-radius: 16px; padding: 16px 18px; }
.bk-bank > small, .bk-qr > small { font-family: var(--font-display); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 800; color: var(--muted); }
.bk-bank dl { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px 14px; margin: 8px 0 0; font-size: 15px; }
.bk-bank dt { color: var(--muted); }
.bk-bank dd { margin: 0; font-weight: 700; overflow-wrap: anywhere; }
.bk-qr { display: grid; justify-items: center; gap: 8px; }
.bk-qr img { border-radius: 8px; }
.bk-qr a { font-size: 13px; text-decoration: underline; }
.bk-file { display: flex; align-items: center; justify-content: center; min-height: 56px; border-radius: 16px; outline: 2px dashed var(--line); outline-offset: -2px; cursor: pointer; font-weight: 700; position: relative; }
.bk-file:hover { outline-color: var(--ink); }
.bk-file.busy { opacity: 0.6; }
.bk-file input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.bk-okline { font-weight: 700; color: #178c46; margin: 0; }
/* 護照說明 ⓘ */
.bk-tip { position: relative; display: inline-block; margin-left: 6px; vertical-align: middle; }
.bk-tip-i { width: 18px; height: 18px; border-radius: 50%; border: 0; padding: 0; background: var(--ink); color: #fff; font: italic 700 12px/18px Georgia, serif; text-align: center; }
.bk-tip-box { display: none; position: absolute; z-index: 5; top: calc(100% + 8px); left: -8px; width: min(280px, 72vw); padding: 10px 12px; border-radius: 12px; background: var(--ink); color: #fff; font-size: 13px; font-weight: 400; line-height: 1.5; box-shadow: var(--shadow); }
.bk-tip-box b { color: var(--yellow); }
.bk-tip.open .bk-tip-box { display: block; }
/* 手機：說明框改成和欄位一樣寬，不會超出畫面 */
@media (max-width: 760px) { .bk-field { position: relative; } .bk-tip { position: static; } .bk-tip-box { left: 0; right: 0; width: auto; top: 28px; } }

/* 報名成功頁「需注意」 */
.bk-warn { padding: 16px 18px; border-radius: 16px; background: #fdf3dc; box-shadow: inset 0 0 0 1.5px #f1d48a; }
.bk-warn-h { display: block; font-size: 15px; color: #8a5a00; }
.bk-warn h3 { font-size: 16px; margin: 6px 0 4px; }
.bk-warn ul { margin: 0; padding-left: 20px; font-size: 14px; line-height: 1.6; display: grid; gap: 4px; color: var(--ink-soft); }
.bk-pay { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 16px; }
.bk-warn ul + .bk-pay { margin-top: 14px; padding-top: 14px; border-top: 1px dashed #e8c66e; }
.bk-pay p { margin: 0; flex: 1 1 260px; font-size: 14px; line-height: 1.55; color: var(--ink-soft); }
.bk-pay p b { display: block; color: var(--ink); font-size: 15px; }

.bk-finish { display: grid; justify-items: center; gap: 10px; text-align: center; }

.bk-mbar { display: none; }

@media (max-width: 960px) {
  .bk-grid { grid-template-columns: 1fr; }
  .bk-side { position: static; order: -1; }
  .bk-sum { display: grid; grid-template-columns: 96px minmax(0, 1fr); box-shadow: 0 1px 0 var(--line); }
  .bk-sum > img { height: 100%; aspect-ratio: auto; }
  .bk-sum-b { padding: 14px 16px; }
  .bk-sum dl, .bk-total, .bk-help { display: none; }
}
@media (max-width: 760px) {
  .bk { padding: 88px 0 120px; }
  .bk-steps span { display: none; }
  .bk-steps li { justify-content: center; padding: 8px; }
  .bk-steps li.on span { display: inline; }
  .bk-steps li.on { flex: 2.5; }
  .bk-fields { grid-template-columns: 1fr; }
  .bk-type { grid-template-columns: 1fr; }
  .bk-dates button { grid-template-columns: 28px minmax(0, 1fr) auto; row-gap: 6px; }
  .bk-ord { grid-row: 1 / span 2; }
  .bk-left { grid-column: 3; grid-row: 1; }
  .bk-p { grid-column: 2 / -1; grid-row: 2; grid-template-columns: auto auto auto auto; justify-content: start; text-align: left; column-gap: 6px; }
  .bk-p small:nth-of-type(2) { margin-left: 8px; }
  .bk-person { padding: 14px; margin-inline: -6px; }
  .bk-pay { grid-template-columns: 1fr; }
  .bk-nav { display: none; }
  .bk-side { display: none; }
  .bk-mbar { display: flex; }
  .bk-review { grid-template-columns: 70px minmax(0, 1fr); }
}