.main-nav a{
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.main-nav .icon{
  width: 1em;
  height: 1em;
}
.brand{
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  letter-spacing: 0;
  min-width: 0;
}
.brand img{
  width: 96px;
  height: 48px;
  object-fit: contain;
}
.main-nav{
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--muted);
}
.main-nav a{
  min-height: 42px;
  padding: 0.18rem 0.7rem;
  border: 2px solid transparent;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 700;
}
.main-nav a:hover{
  background: transparent;
  border-color: #ff9595;
  color: var(--brand-dark);
  box-shadow: 0 0 0 3px rgba(255, 149, 149, 0.18);
}
.main-nav a.member-entry{
  justify-content: flex-start;
}
.member-entry img{
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
}
.site-map{
  width: 100%;
  padding: clamp(1.25rem, 4vw, 2rem) clamp(1rem, 5vw, 2rem) clamp(1.5rem, 5vw, 2.5rem);
}
.site-map-inner{
  width: min(var(--max), 100%);
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 2.5rem) clamp(1.25rem, 5vw, 2.25rem);
  border: 1px solid rgba(234, 217, 205, 0.9);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(255, 250, 245, 0.95), rgba(255, 242, 232, 0.92));
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
}
.site-map-story{
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding-right: clamp(1rem, 3vw, 1.8rem);
  border-right: 1px solid var(--line);
}
.site-map-story img{
  height: 56px;
  width: auto;
  align-self: flex-start;
}
.site-map-story .brand-text{
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--muted);
}
.site-map-story p{
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.7;
}
.site-map-social{
  display: flex;
  gap: 0.6rem;
  margin-top: 0.3rem;
}
.site-map-social a{
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  color: var(--muted);
  text-decoration: none;
  background: var(--surface);
  transition: all 0.15s;
}
.site-map-social a:hover,
.site-map-social a:focus-visible{
  background: var(--surface-soft);
  color: var(--brand-dark);
  border-color: var(--brand);
}
.site-map-social .icon{
  width: 18px;
  height: 18px;
}
.site-map-nav{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem 1rem;
}
.site-map-group h3{
  margin: 0 0 0.6rem;
  font-size: 0.92rem;
}
.site-map-group a{
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 32px;
  padding: 0.2rem 0;
  color: var(--muted);
  font-weight: 700;
  font-size: 0.88rem;
}
.site-map-group a:hover,
.site-map-group a:focus-visible{
  color: var(--brand-dark);
}
.site-map-group .icon{
  width: 1em;
  height: 1em;
}
.site-map-copy{
  grid-column: 1 / -1;
  margin-top: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.4rem;
}

@media (max-width: 1024px) {
.site-map-inner{
    grid-template-columns: 1fr;
  }
.site-map-story{
    border-right: none;
    border-bottom: 1px solid var(--line);
    padding-right: 0;
    padding-bottom: 1.25rem;
  }
.site-map-nav{
    grid-template-columns: 1fr 1fr;
  }
.site-map-nav{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }}

@media (max-width: 820px) {
body.nav-open { overflow: hidden; }
body.nav-open .site-header { z-index: 40; }
body.nav-open::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 21;
    background: rgba(61, 48, 43, 0.42);
}
.main-nav{
    position: fixed;
    inset: 0 0 0 auto;
    z-index: 30;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: 0;
    height: 100dvh;
    padding: 5.25rem 0 1.25rem;
    background: rgba(255, 250, 245, 0.98);
    border-left: 0;
    box-shadow: -18px 0 42px rgba(61, 48, 43, 0.18);
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    visibility: hidden;
    pointer-events: none;
    transition: width 220ms ease, padding 220ms ease, visibility 220ms ease;
  }
.main-nav.open{
    width: min(86vw, 360px);
    padding: 5.25rem 1rem 1.25rem;
    border-left: 1px solid var(--line);
    visibility: visible;
    pointer-events: auto;
  }
.main-nav a{
    min-height: 46px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0.55rem 0.7rem;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    box-shadow: none;
    font-size: 1rem;
  }
.main-nav a:hover{
    box-shadow: none;
  }
.main-nav a.member-entry{
    width: auto;
    min-width: 0;
    height: auto;
    min-height: 52px;
    justify-content: flex-start;
    gap: 0.75rem;
  }
.main-nav a.member-entry:hover{
    box-shadow: none;
    color: var(--brand-dark);
  }
.member-entry img{
    width: 34px;
    height: 34px;
    flex: 0 0 auto;
  }}

@media (max-width: 620px) {
.brand span{
    display: none;
  }
.site-map-nav{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
  }}

/* 無照片會員以名稱首字取代原型照片；維持原有頭像尺寸。 */
.member-avatar-fallback { display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; background: var(--surface-soft); color: var(--brand-dark); font-weight: 700; line-height: 1; }
.member-entry .member-avatar-fallback { width: 34px; height: 34px; border-radius: 50%; font-size: 1rem; }
.member-profile-avatar.member-avatar-fallback { font-size: 2rem; }
.member-profile-avatar.large.member-avatar-fallback { font-size: 2.7rem; }

/* 圖片保留原型三處頭像的尺寸，無照片時仍顯示姓名首字。 */
.member-avatar-fallback { overflow: hidden; }
.member-avatar-fallback > img,
.member-entry .member-avatar-fallback > img { display: block; width: 100%; height: 100%; border-radius: inherit; object-fit: cover; }

/* site.js 建立的波浪畫布須脫離導覽 flex 排版。 */
.site-header > .header-wave-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}