/* 導覽列 */
nav.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 5%;
  background: rgba(15, 31, 22, 0.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(200, 160, 96, 0.18);
}

nav.site-nav .logo-wrap {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
}

.logo-main {
  font-family: 'Noto Serif TC', serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--gold2);
  letter-spacing: 3px;
}

.logo-sub {
  font-family: 'Cormorant Garamond', serif;
  font-size: 10px;
  letter-spacing: 6px;
  color: rgba(200, 160, 96, 0.55);
  font-weight: 400;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 12.5px;
  letter-spacing: 2px;
  color: rgba(245, 240, 230, 0.75);
  text-decoration: none;
  font-weight: 300;
  transition: color 0.25s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--gold);
}

.nav-btn {
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--gold) !important;
  padding: 8px 22px;
  font-size: 11.5px !important;
  letter-spacing: 2px;
  transition: all 0.25s !important;
}

.nav-btn:hover {
  background: var(--gold) !important;
  color: var(--g2) !important;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--gold2);
  font-size: 22px;
  cursor: pointer;
  padding: 4px 8px;
}

/* 頁尾 */
footer.site-footer {
  background: var(--g1);
  padding: 56px 7% 36px;
  border-top: 1px solid rgba(200, 160, 96, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 52px;
  margin-bottom: 44px;
}

.footer-logo {
  font-family: 'Noto Serif TC', serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--gold2);
  letter-spacing: 5px;
}

.footer-logo-sub {
  font-family: 'Cormorant Garamond', serif;
  font-size: 9.5px;
  letter-spacing: 5px;
  color: rgba(200, 160, 96, 0.4);
  margin-top: 3px;
  margin-bottom: 18px;
}

.footer-about {
  font-size: 12.5px;
  line-height: 1.9;
  color: rgba(240, 235, 220, 0.35);
  font-weight: 300;
  max-width: 240px;
}

.footer-col h4 {
  font-family: 'Noto Serif TC', serif;
  font-size: 12.5px;
  letter-spacing: 3px;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 11px;
}

.footer-col ul li a {
  font-size: 12px;
  letter-spacing: 1px;
  color: rgba(240, 235, 220, 0.38);
  text-decoration: none;
  font-weight: 300;
  transition: color 0.25s;
}

.footer-col ul li a:hover {
  color: var(--gold);
}

.footer-bottom {
  border-top: 1px solid rgba(200, 160, 96, 0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 10.5px;
  letter-spacing: 2px;
  color: rgba(240, 235, 220, 0.2);
  font-family: 'Cormorant Garamond', serif;
}

/* 懸浮按鈕 */
.float-actions {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 150;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.float-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 18px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  transition: transform 0.25s;
}

.float-btn:hover {
  transform: translateY(-2px);
}

.float-btn-top {
  background: var(--g2);
  color: var(--gold);
  border: 1px solid rgba(200, 160, 96, 0.3);
}

.float-btn-line {
  background: #06c755;
  color: #fff;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(15, 31, 22, 0.98);
    border-bottom: 1px solid rgba(200, 160, 96, 0.18);
    padding: 12px 5% 20px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
    border-bottom: 1px solid rgba(200, 160, 96, 0.08);
  }

  .nav-links a {
    display: block;
    padding: 14px 0;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}