@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700&display=swap");

:root {
  --c-primary:      #3b5d50;
  --c-primary-dark: #2d4840;
  --c-primary-dark: #2d4840;
  --c-secondary-lt: #f9bf29;
  --c-text:         #3a3a3a;
  --c-muted:        #595959;
  --c-bg:           #eff2f1;
  --c-card:         #ffffff;
  --c-border:       #c8d3d1;
  --c-accent:       #dce5e4;
  --c-white:        #ffffff;
  --c-focus:        #005fcc;
  --font:           'Noto Sans TC', sans-serif;
  --radius-sm:      6px;
  --radius-md:      12px;
  --radius-lg:      20px;
  --radius-pill:    50px;
  --shadow-sm:      0 1px 4px rgba(0,0,0,.08);
  --shadow-md:      0 4px 16px rgba(0,0,0,.12);
  --trans:          .22s ease;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 100%; }
body {
  font-family: var(--font); font-size: 1rem; line-height: 1.75;
  color: var(--c-text); background-color: var(--c-bg); overflow-x: hidden;
}

/* ── 跳至主要內容 */
.skip-link {
  position: absolute; top: -120px; left: 1rem; z-index: 9999;
  padding: .7rem 1.4rem; background: var(--c-primary); color: #fff;
  font-weight: 700; border-radius: var(--radius-sm); text-decoration: none;
  transition: top var(--trans);
}
.skip-link:focus { top: 1rem; outline: 3px solid var(--c-focus); outline-offset: 2px; }

:focus-visible { outline: 3px solid var(--c-focus); outline-offset: 3px; }
:focus:not(:focus-visible) { outline: none; }

a { color: var(--c-primary); text-decoration: underline; transition: color var(--trans); }
a:hover { color: var(--c-primary-dark); text-decoration: none; }

/* ── Navbar */
.custom-navbar {
  background: var(--c-white) !important; padding: .9rem 0;
  box-shadow: var(--shadow-sm); position: sticky; top: 0; z-index: 1030;
}
.custom-navbar.scrolled { box-shadow: 0 2px 12px rgba(0,0,0,.14); }
.custom-navbar .navbar-brand { display: flex; align-items: center; text-decoration: none; }
.custom-navbar .navbar-brand img { max-height: 54px; width: auto; }
.custom-navbar .navbar-toggler {
  background: var(--c-secondary-lt); border: 2px solid #c9980d;
  border-radius: var(--radius-sm); padding: .35rem .55rem;
}
.custom-navbar .navbar-toggler:focus-visible {
  outline: 3px solid var(--c-focus); outline-offset: 2px; box-shadow: none;
}
.custom-navbar-nav { gap: .25rem; }
@media (min-width: 992px) { .custom-navbar-nav { gap: .5rem; } }
.custom-navbar-nav .nav-item .nav-link {
  font-weight: 600; font-size: .9375rem; color: var(--c-muted) !important;
  text-decoration: none; padding: .5rem .8rem; border-radius: var(--radius-sm);
  position: relative; transition: color var(--trans);
}
@media (min-width: 768px) {
  .custom-navbar-nav .nav-item .nav-link::after {
    content: ''; position: absolute; bottom: 4px; left: .8rem; right: .8rem;
    height: 3px; background: var(--c-secondary-lt); border-radius: 2px;
    width: 0; transition: width .18s ease-out;
  }
  .custom-navbar-nav .nav-item .nav-link:hover::after,
  .custom-navbar-nav .nav-item.active .nav-link::after { width: calc(100% - 1.6rem); }
}
.custom-navbar-nav .nav-item .nav-link:hover,
.custom-navbar-nav .nav-item.active .nav-link { color: var(--c-text) !important; }
.custom-navbar-nav .nav-item.active .nav-link { font-weight: 700; }

/* ── Banner */
.hero-banner {
  position: relative; width: 100%; overflow: hidden; background-color: var(--c-primary);
}
.hero-banner .hero-img {
  width: 100%; display: block; max-height: 400px; object-fit: cover; object-position: center top;
}
.hero-banner .hero-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center; pointer-events: none;
}
.hero-banner .hero-title-img { max-height: 110px; width: auto; }

/* ── 篩選列（preview / main / shop 共用） */
.filter-section {
  background: var(--c-white); padding: 1.1rem 0;
  border-bottom: 2px solid var(--c-border); box-shadow: var(--shadow-sm);
}
.filter-form { display: flex; flex-wrap: wrap; gap: .7rem; align-items: flex-end; }

.type-tabs { display: flex; gap: .45rem; align-items: center; }
.type-tab-input { position: absolute; opacity: 0; width: 0; height: 0; }
.type-tab-label {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .45rem .85rem; border: 2px solid var(--c-border);
  border-radius: var(--radius-pill); cursor: pointer; font-weight: 600; font-size: .9rem;
  color: var(--c-muted); background: var(--c-white); transition: all var(--trans); user-select: none;
}
.type-tab-label img { width: 28px; height: 28px; object-fit: contain; }
.type-tab-input:checked + .type-tab-label {
  background: var(--c-primary); border-color: var(--c-primary); color: #fff;
}
.type-tab-input:focus-visible + .type-tab-label { outline: 3px solid var(--c-focus); outline-offset: 2px; }
.type-tab-label:hover { border-color: var(--c-primary); color: var(--c-primary); }

.filter-group { display: flex; flex-direction: column; gap: .2rem; }
.filter-group label { font-size: .875rem; font-weight: 600; color: var(--c-text); }
.filter-select, .filter-input {
  height: 44px; padding: .45rem .7rem;
  border: 2px solid var(--c-border); border-radius: var(--radius-sm);
  font-family: var(--font); font-size: .9rem; color: var(--c-text);
  background: var(--c-white); transition: border-color var(--trans), box-shadow var(--trans);
  min-width: 140px;
}
.filter-select:focus, .filter-input:focus {
  border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(59,93,80,.2); outline: none;
}
.filter-input::placeholder { color: var(--c-muted); }

.btn-query {
  display: inline-flex; align-items: center; gap: .4rem;
  height: 44px; padding: 0 1.4rem;
  background: var(--c-primary); color: #fff;
  font-weight: 700; font-size: .9rem;
  border: 2px solid transparent; border-radius: var(--radius-sm);
  cursor: pointer; white-space: nowrap; transition: background var(--trans);
}
.btn-query:hover { background: var(--c-primary-dark); }
.btn-query:focus-visible { outline: 3px solid var(--c-focus); outline-offset: 2px; }

/* ── Footer */
.site-footer {
  background: #1c2e26; color: rgba(255,255,255,.9); /* 深林暗綠，白字對比 ~14.6:1 ✓ */
  padding: 3rem 0 2rem; margin-top: 3rem;
}
.site-footer a { color: rgba(255,255,255,.9); text-decoration: underline; }
.site-footer a:hover { color: #fff; text-decoration: none; }
.site-footer a:focus-visible { outline: 3px solid var(--c-secondary-lt); outline-offset: 2px; }
.footer-info-table { width: 100%; font-size: .9375rem; line-height: 1.9; }
.footer-info-table th {
  white-space: nowrap; padding-right: 1rem;
  font-weight: 700; color: rgba(255,255,255,.7); vertical-align: top;
}
.footer-info-table td { color: rgba(255,255,255,.95); }
.footer-copyright {
  border-top: 1px solid rgba(255,255,255,.2); margin-top: 2rem; padding-top: 1.25rem;
  font-size: .875rem; color: rgba(255,255,255,.75); text-align: center;
}
.footer-copyright a { color: rgba(255,255,255,.75); }

/* ── 捲動回頂端 */
.btn-scroll-top {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  width: 46px; height: 46px; background: var(--c-primary); color: #fff;
  border: none; border-radius: 50%;
  display: none; align-items: center; justify-content: center;
  font-size: 1.1rem; cursor: pointer; z-index: 900; box-shadow: var(--shadow-md);
  transition: background var(--trans), opacity var(--trans);
}
.btn-scroll-top:hover { background: var(--c-primary-dark); }
.btn-scroll-top:focus-visible { outline: 3px solid var(--c-focus); outline-offset: 2px; }

/* ── 輔助 */
.visually-hidden {
  position: absolute !important; width: 1px !important; height: 1px !important;
  padding: 0 !important; margin: -1px !important; overflow: hidden !important;
  clip: rect(0,0,0,0) !important; white-space: nowrap !important; border: 0 !important;
}

@media (max-width: 767.98px) {
  .filter-form { flex-direction: column; align-items: stretch; }
  .filter-select, .filter-input { min-width: unset; width: 100%; }
  .type-tabs { justify-content: center; }
}

/* ── 線上詢問按鈕（main_preview / item_preview 共用） */
.btn-inquiry {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .65rem 2rem; background: var(--c-primary); color: #fff;
  border: none; border-radius: var(--radius-pill); font-weight: 700; font-size: 1rem;
  cursor: pointer; text-decoration: none; transition: background var(--trans);
}
.btn-inquiry:hover { background: var(--c-primary-dark); color: #fff; text-decoration: none; }
.btn-inquiry:focus-visible { outline: 3px solid var(--c-focus); outline-offset: 2px; }

/* 活動詳情面板底部按鈕群組 */
.detail-btn-group { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }