:root {
  --navy:  #0a1628;
  --gold:  #d4a017;
  --green: #0aa08c;   /* 企業色：天良標誌青綠 */
  --navy-light: #132040;
}

html { scroll-behavior: smooth; }

/* ── Navbar ── */
#mainNav {
  background-color: var(--navy);
  box-shadow: 0 2px 10px rgba(0,0,0,.5);
}
#mainNav .navbar-brand { font-weight: 700; letter-spacing: .03em; }
#mainNav .nav-link { font-size: .9rem; letter-spacing: .03em; transition: color .2s; }
#mainNav .nav-link:hover,
#mainNav .nav-link:focus { color: var(--gold) !important; }

/* ── Hero Banner Carousel ── */
#bannerCarousel { background: var(--navy); }
.banner-slide-img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  display: block;
}
.banner-caption {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(10,22,40,.82) 0%,
    rgba(10,22,40,.45) 45%,
    transparent        72%
  );
  display: flex;
  align-items: center;
  pointer-events: none;
}
.hero-sub {
  color: var(--gold);
  letter-spacing: .18em;
  font-size: .8rem;
  text-transform: uppercase;
  margin-bottom: .5rem;
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: .75rem;
  text-shadow: 0 2px 8px rgba(0,0,0,.4);
}
.hero-desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,.8);
  text-shadow: 0 1px 4px rgba(0,0,0,.4);
  margin-bottom: 0;
}
@media (max-width: 575px) {
  .banner-slide-img { height: 280px; }
}

/* ── Ticker ── */
.ticker-bar { padding: .65rem 0; }
.ticker-label { font-weight: 700; font-size: .85rem; white-space: nowrap; }
.ticker-track { position: relative; }
.ticker-items {
  display: inline-flex;
  gap: 4rem;
  animation: ticker-scroll 30s linear infinite;
  white-space: nowrap;
  will-change: transform;
}
.ticker-items:hover { animation-play-state: paused; }
@keyframes ticker-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ── Section Badge ── */
.section-badge {
  display: inline-flex;
  align-items: center;
  background: var(--green);
  color: #fff;
  padding: .28rem .85rem;
  border-radius: 2rem;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.section-badge.bg-success  { background: var(--green) !important; }
.section-badge.bg-danger   { background: #b02a37 !important; }
.section-badge.bg-warning  { background: var(--gold) !important; color: #000 !important; }

/* ── Announcement Cards ── */
.announcement-card {
  border: none;
  border-radius: .75rem;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
  transition: transform .2s, box-shadow .2s;
}
.announcement-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,.14);
}
.announcement-card .card-img-top {
  height: 180px;
  object-fit: cover;
  background: var(--navy);
}
.ann-img-placeholder {
  height: 180px;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 2.5rem;
}
.announcement-date { font-size: .78rem; color: #888; }

/* ── Channel Table ── */
#channelTableContainer .table thead th {
  background: var(--green);
  color: #fff;
  font-weight: 600;
  white-space: nowrap;
  border: none;
}
#channelTableContainer .table {
  border-radius: .5rem;
  overflow: hidden;
}

/* ── Host Cards ── */
.host-card {
  border: none;
  border-radius: .75rem;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
  transition: transform .2s, box-shadow .2s;
}
.host-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,.14);
}
.host-program-badge {
  font-size: .75rem;
  background: var(--green);
  color: #fff;
  font-weight: 700;
  padding: .2em .65em;
  border-radius: .3rem;
}

/* ── NCC / Contact Section ── */
.bg-navy { background-color: var(--navy) !important; }
.company-dl dt {
  color: var(--gold);
  font-weight: 600;
  padding-bottom: .75rem;
}
.company-dl dd {
  color: rgba(255,255,255,.85);
  padding-bottom: .75rem;
}
.ncc-doc-list { list-style: none; padding: 0; }
.ncc-doc-link {
  display: flex;
  align-items: center;
  padding: .6rem .75rem;
  border-radius: .4rem;
  color: rgba(255,255,255,.8);
  text-decoration: none;
  transition: background .2s, color .2s;
  font-size: .9rem;
  margin-bottom: .35rem;
  border: 1px solid rgba(255,255,255,.12);
}
.ncc-doc-link:hover {
  background: rgba(212,160,23,.15);
  color: var(--gold);
  border-color: rgba(212,160,23,.4);
}

/* ── Host Carousel ── */
.host-carousel-wrap .carousel {
  padding-bottom: 2.75rem; /* 讓 indicators 在卡片下方 */
}
.host-carousel-wrap .carousel-inner {
  padding: 0 3.5rem; /* 左右留空給控制箭頭 */
}
.host-carousel-wrap .carousel-indicators {
  position: absolute;
  bottom: 0;
  margin: 0;
}
.host-carousel-wrap .carousel-indicators button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--green);
  border: none;
  opacity: .35;
  transition: opacity .2s;
}
.host-carousel-wrap .carousel-indicators button.active { opacity: 1; }
.host-carousel-wrap .carousel-control-prev,
.host-carousel-wrap .carousel-control-next {
  width: 2.75rem;
  height: 2.75rem;
  top: 50%;
  transform: translateY(calc(-50% - 1.4rem)); /* 往上移讓 indicators 不遮 */
  background-color: var(--green);
  border-radius: 50%;
  opacity: .85;
  transition: opacity .2s;
}
.host-carousel-wrap .carousel-control-prev:hover,
.host-carousel-wrap .carousel-control-next:hover { opacity: 1; }
.host-carousel-wrap .carousel-control-prev { left: 0; }
.host-carousel-wrap .carousel-control-next { right: 0; }

/* Host card image wrap */
.host-img-wrap {
  position: relative;
  overflow: hidden;
}
.host-avatar {
  width: 100%;
  height: 240px;
  object-fit: cover;
  object-position: top;
  display: block;
  transition: transform .35s ease;
}
.host-img-placeholder {
  height: 240px;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 3rem;
}
/* 放大提示 overlay */
.host-zoom-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,22,40,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .25s;
  font-size: 2rem;
  color: #fff;
  pointer-events: none;
}
.host-card {
  cursor: pointer;
}
.host-card:hover .host-avatar      { transform: scale(1.06); }
.host-card:hover .host-zoom-overlay { opacity: 1; }

/* ── Footer Social Links ── */
.footer-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.2);
  color: rgba(255,255,255,.55);
  font-size: 1.15rem;
  text-decoration: none;
  transition: background .2s, color .2s, border-color .2s;
}
.footer-social-link:hover { color: #fff; border-color: rgba(255,255,255,.6); background: rgba(255,255,255,.08); }

/* ── Back to Top ── */
#backToTop { line-height: 1; display: flex !important; align-items: center; justify-content: center; }
#backToTop[style*="display:none"] { display: none !important; }

/* ── Setup Banner (config not set) ── */
.setup-notice {
  background: #fff3cd;
  border: 1px solid #ffc107;
  border-radius: .5rem;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 575px) {
  .hero-banner { min-height: 300px; }
  .hero-overlay { padding: 2.5rem 0; }
  .company-dl dt, .company-dl dd { padding-bottom: .5rem; }
}