/* 小魚干潛水 — 品牌色：深藍 × 中藍 × 粉珊瑚，手繪柔和水感 */
:root {
  /* 主色（取自品牌色票，沿用舊變數名整站自動換色） */
  --navy: #235c80;       /* 深藍（logo 海洋藍） */
  --navy-2: #2b6c92;
  --teal: #3b85b6;       /* 品牌主藍（魚頭藍 #3B85B6） */
  --teal-dark: #2c6f96;
  --teal-bg: #e4eef7;    /* 淺藍底 */
  /* 粉珊瑚（魚尾） */
  --pink: #fcc9d0;
  --pink-bg: #fff5f6;
  --coral: #ff8594;      /* 強調 / 主要 CTA */
  --coral-dark: #f06b7d;
  --coral-2: #ff9796;
  --ink: #2b3a44;        /* logo 線條深色 */
  --ink-2: #5e7283;
  --line: #e3ebf1;
  --bg: #f4f8fb;         /* 全站底（藍白） */
  --card: #ffffff;
  --ok: #15803d;
  --ok-bg: #e9f6ee;
  --warn: #b45309;
  --warn-bg: #fdf3e3;
  --bad: #b91c1c;
  --bad-bg: #fbeae9;
  --info: #2c6f96;
  --info-bg: #e4eff6;
  --r: 14px;
  --shadow: 0 1px 3px rgba(35, 94, 126, 0.08);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
/* 錨點捲動時避開置頂列 */
[id] { scroll-margin-top: 62px; }

/* ---- 置頂導覽列（參考 seaotterdive，窄螢幕自動收合為漢堡選單） ---- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 10px;
  padding: 16px 22px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar .tb-logo { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 24px; color: var(--navy); flex: 0 0 auto; }
.topbar .tb-logo img { width: 44px; height: 44px; border-radius: 50%; }
.tb-nav { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.tb-nav a { white-space: nowrap; padding: 7px 11px; font-size: 14px; font-weight: 700; color: var(--ink); border-radius: 9px; }
.tb-nav a:hover { color: var(--teal); background: var(--teal-bg); }
.tb-nav a.on { color: var(--teal); }
.tb-nav a.tb-cta { background: var(--coral); color: #fff; }
.tb-nav a.tb-cta:hover { background: var(--coral-dark); }

/* 導覽下拉選單 */
.tb-drop { position: relative; display: flex; align-items: center; }
.tb-toggle { cursor: pointer; }
.tb-menu { position: absolute; top: calc(100% + 4px); left: 0; min-width: 172px; background: #fff; border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 10px 24px rgba(35, 94, 126, 0.14); padding: 6px; display: none; z-index: 50; }
.tb-drop:hover .tb-menu, .tb-drop:focus-within .tb-menu { display: block; }
.tb-menu a { display: block; white-space: nowrap; padding: 9px 12px; font-size: 14px; font-weight: 700; color: var(--ink); border-radius: 8px; }
.tb-menu a:hover { color: var(--teal); background: var(--teal-bg); }

/* 漢堡按鈕（桌面隱藏） */
.nav-burger { display: none; margin-left: auto; cursor: pointer; align-items: center; justify-content: center; width: 40px; height: 36px; border: 1.5px solid var(--teal); border-radius: 9px; color: var(--teal); flex: 0 0 auto; }
.nav-burger svg { width: 22px; height: 22px; }
.nav-toggle { display: none; }

/* 窄螢幕：收合成漢堡下拉選單 */
@media (max-width: 720px) {
  .nav-burger { display: inline-flex; }
  .tb-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    margin: 0; padding: 6px;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: 0 10px 24px rgba(35, 94, 126, 0.12);
    display: none;
  }
  .nav-toggle:checked ~ .tb-nav { display: flex; }
  .tb-nav a { padding: 12px 14px; font-size: 15px; border-radius: 10px; }
  .tb-nav a.tb-cta { text-align: center; margin-top: 4px; }
  /* 手機：下拉子項直接縮排展開 */
  .tb-drop { flex-direction: column; align-items: stretch; }
  .tb-menu { position: static; display: block; min-width: 0; border: 0; box-shadow: none; padding: 0 0 4px 12px; }
  .tb-menu a { padding: 10px 14px; font-size: 14px; color: var(--ink-2); }
}

/* ---- 報名須知區塊 ---- */
.notice-cards { display: grid; gap: 14px; }
.notice-card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; box-shadow: var(--shadow); }
.notice-card h3 { margin: 0 0 8px; font-size: 15px; color: var(--navy); display: flex; align-items: center; gap: 7px; }
.notice-card ul { margin: 0; padding-left: 18px; color: var(--ink-2); font-size: 13.5px; line-height: 1.85; }
.notice-card .bank-row { display: flex; justify-content: space-between; padding: 5px 0; font-size: 14px; border-top: 1px solid var(--line); }
.notice-card .bank-row:first-of-type { border-top: 0; }
.notice-card .bank-row span { color: var(--ink-2); }

/* 課程分組標題 */
.course-group { margin: 18px 0 8px; font-size: 14px; font-weight: 800; color: var(--coral-dark); letter-spacing: .5px; }
.course-group:first-child { margin-top: 0; }

@media (min-width: 700px) {
  .tb-nav { gap: 4px; }
  .notice-cards { grid-template-columns: 1fr 1fr; }
  .notice-cards .notice-card.full { grid-column: 1 / -1; }
}
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Noto Sans TC', 'PingFang TC', sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}
.wrap { max-width: 560px; margin: 0 auto; padding: 0 16px 40px; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
svg.i { width: 1em; height: 1em; vertical-align: -0.12em; }

/* ---- 頂部 ---- */
.hero {
  background: var(--navy);
  color: #fff;
  border-radius: 0 0 20px 20px;
  padding: 22px 16px 24px;
  margin: 0 -16px 16px;
}
.hero .brand { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 19px; letter-spacing: 0.4px; }
.hero .brand svg { width: 26px; height: 26px; }
.hero h1 { margin: 12px 0 4px; font-size: 22px; letter-spacing: 0.3px; }
.hero p { margin: 0; opacity: 0.78; font-size: 14px; }
.hero.small { padding-bottom: 18px; }
.hero .back { display: inline-block; margin-bottom: 8px; font-size: 14px; opacity: 0.82; }

/* ---- 篩選 ---- */
.filters { display: flex; gap: 8px; margin-bottom: 14px; overflow-x: auto; padding-bottom: 2px; }
.chip {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink-2);
  border-radius: 999px;
  padding: 7px 15px;
  font-size: 14px;
}
.chip.on { background: var(--navy); color: #fff; border-color: var(--navy); font-weight: 700; }

/* ---- 卡片 ---- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 14px;
}
.card h3 { margin: 0 0 8px; font-size: 16px; display: flex; align-items: center; }

.step {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; flex: 0 0 22px;
  border-radius: 50%;
  background: var(--navy); color: #fff;
  font-size: 13px; font-weight: 700;
  margin-right: 8px;
}

.coach-head { display: flex; gap: 12px; align-items: center; }
.avatar {
  width: 52px; height: 52px; flex: 0 0 52px;
  border-radius: 50%;
  color: #fff; font-weight: 800; font-size: 21px;
  display: flex; align-items: center; justify-content: center;
}
.avatar.lg { width: 66px; height: 66px; flex-basis: 66px; font-size: 26px; }
.coach-head .meta { min-width: 0; }
.coach-head .name { font-weight: 800; font-size: 17px; }
.rating { color: var(--warn); font-size: 13px; font-weight: 700; }
.rating .cnt { color: var(--ink-2); font-weight: 400; }
.loc { color: var(--ink-2); font-size: 13px; }

.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.tag {
  background: var(--teal-bg); color: var(--teal-dark);
  border-radius: 999px; padding: 3px 11px;
  font-size: 12px; font-weight: 600;
}
.tag.alt { background: var(--pink-bg); color: var(--coral-dark); }

/* ---- 關於教練：適合對象 / 服務項目 / IG ---- */
.about-sub { margin-top: 12px; }
.about-lbl { display: block; font-size: 12px; font-weight: 700; color: var(--ink-2); margin-bottom: 6px; }
.pill-row { display: flex; flex-wrap: wrap; gap: 6px; }
.pill {
  background: var(--teal-bg); color: var(--teal-dark);
  border-radius: 8px; padding: 4px 10px; font-size: 12.5px; font-weight: 600;
}
.pill.ghost { background: var(--bg); color: var(--ink); border: 1px solid var(--line); }
.ig-link {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 14px;
  font-size: 13px; font-weight: 700; color: var(--teal-dark);
}
.ig-link svg { width: 17px; height: 17px; }

/* 經歷成就 */
.ach-group { margin-top: 8px; }
.ach-head { font-size: 13.5px; font-weight: 800; margin: 8px 0 4px; }
.ach-group:nth-of-type(1) .ach-head { color: var(--teal); }   /* 自由潛水：藍 */
.ach-group:nth-of-type(2) .ach-head { color: var(--coral); }  /* 人魚：粉珊瑚 */
.ach-item { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: 13px; color: var(--ink); padding: 4px 0; border-top: 1px solid var(--line); line-height: 1.5; }
.ach-item:first-of-type { border-top: 0; }
.ach-item b { color: var(--ink-2); font-weight: 700; }
.ach-award { flex: 0 0 auto; font-size: 12px; font-weight: 800; padding: 2px 9px; border-radius: 7px; background: var(--teal-bg); color: var(--teal-dark); white-space: nowrap; }
.ach-group:nth-of-type(2) .ach-award { background: var(--pink-bg); color: var(--coral-dark); }

.course-line { display: flex; justify-content: space-between; gap: 10px; padding: 9px 0; border-top: 1px solid var(--line); font-size: 14px; }
.course-line:first-of-type { border-top: 0; }
.course-line .price { font-weight: 800; color: var(--navy); white-space: nowrap; }
.course-line .sub { color: var(--ink-2); font-size: 12px; margin-top: 2px; }
.course-line .sub b { display: inline-block; color: var(--teal-dark); font-weight: 700; margin-right: 4px; }

.badge { display: inline-block; border-radius: 6px; padding: 2px 9px; font-size: 12px; font-weight: 700; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.info { background: var(--info-bg); color: var(--info); }

/* ---- 按鈕 ---- */
.btn {
  display: block; width: 100%;
  background: var(--teal); color: #fff;
  border: 0; border-radius: 11px;
  padding: 13px; font-size: 16px; font-weight: 700;
  text-align: center;
}
.btn:active { background: var(--teal-dark); }
.btn:disabled { opacity: 0.4; cursor: default; }
.btn.ghost { background: #fff; color: var(--teal-dark); border: 1.5px solid var(--teal); }
.btn.sm { width: auto; padding: 7px 14px; font-size: 13px; border-radius: 9px; display: inline-block; }
.btn.danger { background: #fff; color: var(--bad); border: 1.5px solid #e4b6b3; }

/* ---- 預約精靈：類型 / 地點 / 場次 ---- */
.cat-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cat-btn {
  display: flex; flex-direction: column; gap: 2px; text-align: left;
  border: 1.5px solid var(--line); background: #fff; border-radius: 12px; padding: 13px 14px;
}
.cat-btn .cat-en { font-size: 11px; letter-spacing: 1.5px; font-weight: 700; color: var(--ink-2); }
.cat-btn strong { font-size: 17px; color: var(--navy); }
.cat-btn .cat-desc { font-size: 11.5px; color: var(--ink-2); line-height: 1.4; }
.cat-btn.on { border-color: var(--teal); background: var(--teal-bg); }
.cat-btn.on strong { color: var(--teal-dark); }

.loc-row { display: flex; flex-wrap: wrap; gap: 8px; }
.loc-btn {
  border: 1.5px solid var(--line); background: #fff; color: var(--ink);
  border-radius: 999px; padding: 9px 18px; font-size: 14px; font-weight: 700;
}
.loc-btn.on { border-color: var(--teal); background: var(--teal-bg); color: var(--teal-dark); }
.loc-btn .rem { display: block; font-size: 11px; font-weight: 600; color: var(--coral-dark); margin-top: 2px; }
.sess-list { display: flex; flex-direction: column; gap: 8px; }
.sess-card {
  display: flex; flex-direction: column; gap: 3px; text-align: left;
  border: 1.5px solid var(--line); background: #fff; border-radius: 14px; padding: 12px 14px; cursor: pointer;
}
.sess-card.on { border-color: var(--teal); background: var(--teal-bg); }
.sess-card:disabled { opacity: .5; cursor: not-allowed; }
.sess-theme { font-size: 15px; font-weight: 800; color: var(--navy); }
.sess-meta { font-size: 13px; color: var(--ink-2); }
.sess-rem { font-size: 12px; font-weight: 700; color: var(--teal-dark); }
.sess-rem.full { color: var(--ink-2); }
.date-grid { display: flex; flex-wrap: wrap; gap: 8px; max-height: 240px; overflow-y: auto; padding: 2px; }
.date-grid .loc-btn { padding: 9px 14px; font-size: 13.5px; }

.session-list { display: flex; flex-direction: column; gap: 8px; }
.session-item {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  border: 1.5px solid var(--line); background: #fff; border-radius: 12px; padding: 11px 14px; text-align: left;
}
.session-item.on { border-color: var(--teal); background: var(--teal-bg); }
.si-main { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.si-date { font-weight: 800; color: var(--navy); font-size: 14.5px; }
.si-time { font-weight: 600; color: var(--ink-2); font-size: 12.5px; margin-left: 4px; }
.si-sub { font-size: 12px; color: var(--coral-dark); font-weight: 700; }
.si-price { font-weight: 800; color: var(--navy); white-space: nowrap; }

/* ---- 時段選擇 ---- */
.slot-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.slot {
  border: 1.5px solid var(--line); background: #fff;
  border-radius: 11px; padding: 9px 4px;
  text-align: center; font-size: 13px;
}
.slot .d { font-weight: 700; }
.slot .t { color: var(--ink-2); font-size: 12px; }
.slot.on { border-color: var(--teal); background: var(--teal-bg); color: var(--teal-dark); }
.slot.on .t { color: var(--teal-dark); }

/* ---- 表單 ---- */
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 13px; font-weight: 700; color: var(--ink-2); margin-bottom: 5px; }
.field input, .field select {
  width: 100%; border: 1.5px solid var(--line); border-radius: 10px;
  padding: 10px 12px; font-size: 15px; background: #fff; color: var(--ink);
}
.field input:focus, .field select:focus { outline: none; border-color: var(--teal); }
.note { font-size: 12px; color: var(--ink-2); }
.req { color: var(--bad); font-weight: 800; }

/* 表單分段標題 */
.form-sec { margin: 18px 0 10px; font-size: 13.5px; font-weight: 800; color: var(--navy); padding-top: 14px; border-top: 1px dashed var(--line); }

/* 匯款資訊卡 */
.bank { background: var(--teal-bg); border-radius: 10px; padding: 10px 12px; margin-bottom: 12px; }
.bank div { display: flex; justify-content: space-between; font-size: 14px; padding: 3px 0; }
.bank span { color: var(--ink-2); }
.bank strong { letter-spacing: 0.3px; }

/* 課前注意事項 */
.notice { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; font-size: 12.5px; color: var(--ink-2); }
.notice strong { display: block; color: var(--ink); margin: 8px 0 4px; font-size: 13px; }
.notice strong:first-child { margin-top: 0; }
.notice ul { margin: 0; padding-left: 18px; }
.notice li { margin: 2px 0; }
.agree { display: flex; align-items: flex-start; gap: 8px; font-size: 13px; color: var(--ink); margin: 12px 0 14px; cursor: pointer; }
.agree input { width: 17px; height: 17px; margin-top: 1px; flex: 0 0 auto; }

/* 預約成功 → 加入官方 LINE */
.line-cta { background: #eafaf0; border: 1px solid #b6e8c8; border-radius: 12px; padding: 14px 16px; margin-bottom: 12px; }
.line-cta-h { font-weight: 800; color: var(--ok); font-size: 15px; margin-bottom: 4px; }
.line-cta p { margin: 0 0 12px; font-size: 13.5px; color: var(--ink-2); line-height: 1.7; }
.line-btn {
  display: inline-flex; align-items: center; gap: 8px; width: 100%; justify-content: center;
  background: #06C755; color: #fff; font-weight: 800; font-size: 16px;
  padding: 13px; border-radius: 11px; box-shadow: 0 6px 16px rgba(6,199,85,.32);
}
.line-btn svg { width: 22px; height: 22px; }
.line-btn:active { background: #05a948; }

/* ---- 底部導覽 ---- */
.tabbar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 20;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--line);
  display: flex;
  padding-bottom: env(safe-area-inset-bottom);
}
.tabbar a {
  flex: 1; text-align: center; padding: 10px 0 7px;
  font-size: 11px; color: var(--ink-2);
}
.tabbar a .ico { display: block; line-height: 1; margin-bottom: 3px; }
.tabbar a .ico svg { width: 22px; height: 22px; }
.tabbar a.on { color: var(--teal-dark); font-weight: 700; }

/* ---- 區段標題 ---- */
.sec { display: flex; align-items: center; justify-content: space-between; margin: 20px 0 10px; }
.sec h2 { margin: 0; font-size: 15px; letter-spacing: 0.3px; color: var(--navy); text-transform: uppercase; }
.sec h2::before { content: ''; display: inline-block; width: 4px; height: 14px; background: var(--teal); border-radius: 2px; margin-right: 8px; vertical-align: -2px; }

/* ---- 後台 ---- */
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); padding: 12px; text-align: center; }
.stat .num { font-size: 22px; font-weight: 800; color: var(--navy); }
.stat .lbl { font-size: 12px; color: var(--ink-2); }
.income-line { display: flex; justify-content: space-between; padding: 8px 0; border-top: 1px solid var(--line); font-size: 14px; }
.income-line:first-child { border-top: 0; }
.income-line .neg { color: var(--bad); }
.income-line.total { font-weight: 800; font-size: 15px; }
.list-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 10px 0; border-top: 1px solid var(--line); font-size: 14px; }
.list-row:first-child { border-top: 0; }
.list-row .sub { color: var(--ink-2); font-size: 12px; }
.row-actions { display: flex; gap: 6px; flex: 0 0 auto; flex-wrap: wrap; justify-content: flex-end; }
.sec-note { font-size: 12px; color: var(--ink-2); }

/* 後台：報名資料明細 */
.detail { background: var(--bg); border-radius: 10px; padding: 10px 12px; margin: 2px 0 10px; }
.detail div { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; padding: 3px 0; border-top: 1px solid var(--line); }
.detail div:first-child { border-top: 0; }
.detail span { color: var(--ink-2); flex: 0 0 auto; }
.detail b { text-align: right; word-break: break-all; }

/* 後台：各課程排課 */
.slot-form { background: var(--bg); border-radius: 10px; padding: 10px; margin-bottom: 12px; }
.slot-form select { width: 100%; border: 1.5px solid var(--line); border-radius: 10px; padding: 9px 12px; font-size: 14px; background: #fff; margin-bottom: 8px; }
.slot-form-row { display: grid; grid-template-columns: 1fr 1fr 1fr auto; gap: 6px; }
.slot-form-row input { border: 1.5px solid var(--line); border-radius: 10px; padding: 8px; font-size: 13px; min-width: 0; }
.course-slots { margin-top: 4px; }
.course-slots-head { font-weight: 800; font-size: 14px; color: var(--navy); margin: 14px 0 2px; }
.course-slots-head .cnt { font-weight: 600; font-size: 12px; color: var(--ink-2); margin-left: 6px; }
.list-row.sub-row { padding: 8px 0; font-size: 13px; }
.empty.sm { padding: 10px 0; font-size: 13px; text-align: left; }

.empty { text-align: center; color: var(--ink-2); padding: 28px 0; font-size: 14px; }

/* ---- 教練操作說明頁 ---- */
.g-links { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 6px; }
.g-link { display: flex; flex-direction: column; gap: 2px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 13px 14px; box-shadow: var(--shadow); font-weight: 800; color: var(--navy); }
.g-link span { font-size: 12px; font-weight: 600; color: var(--ink-2); }
.g-fields { display: grid; gap: 6px; }
.g-fields > div { font-size: 13.5px; color: var(--ink); padding: 8px 10px; background: var(--bg); border-radius: 9px; }
.g-k { display: inline-block; min-width: 72px; font-weight: 800; color: var(--teal-dark); margin-right: 6px; }
.g-ul, .g-ol { margin: 8px 0 0; padding-left: 20px; font-size: 13.5px; color: var(--ink); line-height: 1.9; }
.g-ol li, .g-ul li { margin: 4px 0; }
.g-qa { border-top: 1px solid var(--line); padding: 10px 0 2px; }
.g-qa:first-of-type { border-top: 0; }
.g-qa b { color: var(--navy); font-size: 14px; }
.g-qa p { margin: 3px 0 0; font-size: 13px; color: var(--ink-2); line-height: 1.7; }

/* ---- 提示浮層 ---- */
#toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: var(--navy); color: #fff;
  padding: 10px 18px; border-radius: 999px; font-size: 14px;
  opacity: 0; pointer-events: none; transition: opacity 0.25s;
  z-index: 50; max-width: 88vw; text-align: center;
}
#toast.show { opacity: 1; }

@media (min-width: 600px) {
  .hero { border-radius: 20px; margin: 16px 0; }
  .slot-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ============================================================
   小魚干潛水 — 首頁設計（參考 seaotterdive：全幅 hero + 波浪分隔 + 分區）
   ============================================================ */

/* ---- 全幅 Hero ---- */
.hero-full {
  position: relative;
  min-height: 82vh;
  display: flex; flex-direction: column;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(20,60,90,.18) 0%, rgba(25,70,100,.34) 52%, rgba(35,94,126,.66) 100%),
    url('../assets/hero.jpg') center/cover no-repeat,
    linear-gradient(180deg, #4f7fa3, #235c80);
}
.hero-nav {
  position: relative; z-index: 3;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
}
.hero-nav .logo { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 17px; letter-spacing: .5px; text-shadow: 0 1px 6px rgba(0,0,0,.25); }
.hero-nav .logo img { width: 52px; height: 52px; border-radius: 50%; background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,.18); }
.hero-inner {
  position: relative; z-index: 2;
  flex: 1; display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center; padding: 20px 22px 70px;
}
.hero-kicker { margin: 0 0 14px; font-size: 13px; letter-spacing: 3px; opacity: .92; font-weight: 600; }
.hero-tagline {
  margin: 0; font-style: italic; font-weight: 800;
  font-size: clamp(30px, 9vw, 46px); line-height: 1.12;
  text-shadow: 0 2px 16px rgba(0,0,0,.3);
}
.hero-sub { margin: 16px 0 26px; font-size: 15px; opacity: .94; max-width: 18em; line-height: 1.7; }
.hero-cta {
  display: inline-block; background: var(--coral); color: #fff;
  padding: 13px 30px; border-radius: 999px; font-weight: 800; font-size: 16px;
  box-shadow: 0 8px 22px rgba(247,110,116,.4);
}
.hero-cta:active { background: var(--coral-dark); }
/* hero 底部白色波浪 */
.hero-wave { position: absolute; left: 0; right: 0; bottom: -1px; z-index: 2; line-height: 0; }
.hero-wave svg { width: 100%; height: 60px; display: block; }
.hero-wave path { fill: var(--bg); }

/* ---- 區塊 ---- */
.section { padding: 38px 16px; }
.section.alt { background: var(--teal-bg); }
.section.pink { background: var(--pink-bg); }
.section-inner { max-width: 560px; margin: 0 auto; }
.section-head { text-align: center; margin-bottom: 20px; }
.section-head .en { display: block; font-size: 12px; letter-spacing: 3px; font-weight: 700; color: var(--teal); margin-bottom: 4px; }
.section-head h2 { margin: 0; font-size: 22px; color: var(--navy); }
.section-head::before { display: none; }
.intro-text { text-align: center; color: var(--ink-2); font-size: 14.5px; line-height: 1.85; margin: 0 auto; max-width: 28em; }

/* 波浪分隔（區塊之間） */
.wave { line-height: 0; }
.wave svg { width: 100%; height: 46px; display: block; }

/* ---- 活動紀錄 ---- */
.activity-grid { display: grid; gap: 16px; }
.activity-card {
  background: var(--card); border-radius: 16px; overflow: hidden;
  box-shadow: var(--shadow); border: 1px solid var(--line);
}
.activity-card .photo { aspect-ratio: 4/3; background: var(--teal-bg) center/cover no-repeat; display: block; }
.activity-card .body { padding: 13px 15px 16px; }
.activity-card .ac-title { font-weight: 800; font-size: 16px; color: var(--navy); margin: 0 0 2px; }
.activity-card .ac-date { font-size: 12px; color: var(--coral); font-weight: 700; margin-bottom: 7px; }
.activity-card .ac-desc { font-size: 13.5px; color: var(--ink-2); line-height: 1.7; margin: 0; }
.activity-card .ac-tags { margin-top: 9px; }

/* 首頁「探索更多」導覽卡 */
.nav-cards { display: grid; gap: 12px; }
.nav-card { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; box-shadow: var(--shadow); }
.nav-card .nc-en { display: block; font-size: 11px; letter-spacing: 2px; font-weight: 700; color: var(--teal); margin-bottom: 4px; }
.nav-card strong { display: block; font-size: 16px; color: var(--navy); margin-bottom: 4px; }
.nav-card .nc-desc { font-size: 13px; color: var(--ink-2); }
.nav-card:active { background: var(--teal-bg); }
@media (min-width: 600px) { .nav-cards { grid-template-columns: 1fr 1fr; } }

/* 首頁活動 teaser */
.teaser-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 16px; }
.teaser-grid .t { aspect-ratio: 1; border-radius: 12px; background: var(--teal-bg) center/cover no-repeat; }
.teaser-cta { text-align: center; }

/* ---- Footer ---- */
.site-footer { background: var(--navy); color: #cfe0ea; padding: 30px 18px calc(30px + env(safe-area-inset-bottom)); text-align: center; }
.site-footer .f-logo { display: inline-flex; align-items: center; gap: 9px; font-weight: 800; font-size: 17px; color: #fff; margin-bottom: 10px; }
.site-footer .f-logo img { width: 46px; height: 46px; border-radius: 50%; background: #fff; }
.site-footer p { margin: 4px 0; font-size: 13px; opacity: .9; }
.site-footer a { color: #fff; font-weight: 600; }
.site-footer .f-links { display: flex; gap: 14px; justify-content: center; margin: 12px 0; flex-wrap: wrap; font-size: 13px; }
.site-footer .copy { margin-top: 14px; font-size: 11px; opacity: .55; }

@media (min-width: 600px) {
  .activity-grid { grid-template-columns: 1fr 1fr; }
}

/* ---- 部落格 ---- */
.blog-grid { display: grid; gap: 18px; }
.blog-card { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); transition: transform .15s ease, box-shadow .15s ease; }
.blog-card:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(35, 94, 126, 0.14); }
.blog-card .cover { display: block; height: 188px; background: var(--teal-bg) center/cover no-repeat; }
.blog-card .body { padding: 16px 18px 18px; }
.bc-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 9px; }
.bc-date { color: var(--ink-2); font-size: 13px; }
.bc-title { margin: 0 0 8px; font-size: 18px; line-height: 1.5; color: var(--navy); }
.bc-excerpt { margin: 0 0 12px; font-size: 14px; line-height: 1.75; color: var(--ink); }
.bc-more { font-size: 14px; font-weight: 700; color: var(--teal); }

/* ---- 部落格單篇 ---- */
.post { max-width: 600px; margin: 0 auto; }
.post-cover { height: 220px; border-radius: 16px; background: var(--teal-bg) center/cover no-repeat; margin-bottom: 18px; }
.post-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; color: var(--ink-2); font-size: 13px; margin-bottom: 12px; }
.post-title { font-size: clamp(22px, 6vw, 28px); line-height: 1.45; color: var(--navy); margin: 0 0 20px; }
.post p { font-size: 15.5px; line-height: 1.95; color: var(--ink); margin: 0 0 17px; }
.post-back { margin-top: 26px; }

@media (min-width: 600px) {
  .blog-grid { grid-template-columns: 1fr 1fr; }
}

/* ---- 常見問答 FAQ ---- */
.faq-list { display: grid; gap: 10px; }
.faq { background: var(--card); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); overflow: hidden; }
.faq > summary { list-style: none; cursor: pointer; padding: 15px 16px; font-size: 15px; font-weight: 700; color: var(--navy); display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.faq > summary::-webkit-details-marker { display: none; }
.faq > summary::after { content: '+'; color: var(--teal); font-size: 20px; font-weight: 700; line-height: 1; flex: 0 0 auto; }
.faq[open] > summary { color: var(--teal); }
.faq[open] > summary::after { content: '\2212'; }
.faq-a { padding: 0 16px 16px; font-size: 14px; line-height: 1.85; color: var(--ink); }