/* 卡片集 — 深蓝 / 琥珀 / 纸张质感 */

:root {
  --bg-deep: #0d111c;
  --bg-card: #151b2b;
  --surface: #1c2438;
  --text: #e8e4dc;
  --text-muted: #8f96a8;
  --accent: #d4a574;
  --accent-soft: rgba(212, 165, 116, 0.22);
  --accent-glow: rgba(212, 165, 116, 0.45);
  --border: rgba(232, 228, 220, 0.12);
  --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.45);
  --radius: 14px;
  --font-display: "Fraunces", Georgia, serif;
  --font-ui: "Sora", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  font-weight: 400;
  color: var(--text);
  background: var(--bg-deep);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(212, 165, 116, 0.12), transparent 55%),
    radial-gradient(ellipse 80% 50% at 100% 50%, rgba(70, 90, 140, 0.15), transparent 50%),
    radial-gradient(ellipse 60% 40% at 0% 80%, rgba(40, 60, 100, 0.2), transparent 45%);
  line-height: 1.45;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.07;
  z-index: 9999;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.site-header {
  padding: 2.5rem 1.5rem 1.5rem;
  text-align: center;
}

.site-header__inner {
  max-width: 720px;
  margin: 0 auto;
}

.site-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.site-tagline {
  margin: 0.6rem 0 0;
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

.toolbar {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.85rem;
  margin-bottom: 1.75rem;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.toolbar__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.category-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.5rem;
  padding-bottom: 0.85rem;
  margin: 0 -0.15rem;
  border-bottom: 1px solid var(--border);
}

.category-nav__item {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.38rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.category-nav__item:hover {
  color: var(--text);
  border-color: var(--accent-soft);
  background: color-mix(in srgb, var(--accent-soft) 35%, var(--bg-card));
}

.category-nav__item.is-active {
  color: var(--text);
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 28%, transparent);
}

.per-page {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.per-page__label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.per-page__select {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  padding: 0.45rem 2rem 0.45rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
}

.toolbar__right {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem 1.25rem;
}

.toolbar__info {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.userbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-left: 1px solid var(--border);
  padding-left: 1rem;
}

.userbar__welcome {
  font-size: 0.88rem;
  color: var(--text);
  max-width: 10rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.userbar__logout {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.userbar__logout:hover {
  color: var(--text);
  border-color: rgba(212, 165, 116, 0.45);
  background: var(--accent-soft);
}

@media (max-width: 540px) {
  .userbar {
    border-left: none;
    padding-left: 0;
    width: 100%;
    justify-content: space-between;
  }
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1.25rem;
  min-height: 200px;
}

@media (min-width: 640px) {
  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
  }
}

.card {
  position: relative;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  opacity: 0;
  transform: translateY(12px);
  animation: cardIn 0.55s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.card:nth-child(1) { animation-delay: 0.03s; }
.card:nth-child(2) { animation-delay: 0.06s; }
.card:nth-child(3) { animation-delay: 0.09s; }
.card:nth-child(4) { animation-delay: 0.12s; }
.card:nth-child(5) { animation-delay: 0.15s; }
.card:nth-child(6) { animation-delay: 0.18s; }
.card:nth-child(7) { animation-delay: 0.21s; }
.card:nth-child(8) { animation-delay: 0.24s; }
.card:nth-child(9) { animation-delay: 0.27s; }
.card:nth-child(10) { animation-delay: 0.30s; }
.card:nth-child(11) { animation-delay: 0.33s; }
.card:nth-child(12) { animation-delay: 0.36s; }

@keyframes cardIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card:hover {
  border-color: rgba(212, 165, 116, 0.35);
  box-shadow:
    var(--shadow-card),
    0 0 0 1px var(--accent-soft),
    0 0 28px var(--accent-glow);
}

.card--has-link:hover {
  border-color: rgba(120, 180, 220, 0.45);
  box-shadow:
    var(--shadow-card),
    0 0 0 1px rgba(120, 180, 220, 0.2),
    0 0 24px rgba(100, 160, 220, 0.25);
}

.card__link {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: rgba(212, 165, 116, 0.25);
}

.card__image-wrap {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: linear-gradient(160deg, var(--surface) 0%, #0f1420 100%);
}

.card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.card:hover .card__image {
  transform: scale(1.05);
}

.card__caption {
  padding: 0.85rem 1rem 1rem;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(28, 36, 56, 0.6) 0%, var(--bg-card) 100%);
}

.card__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--text);
}

.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.pager__btn {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.65rem 1.35rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s, opacity 0.2s;
}

.pager__btn:hover:not(:disabled) {
  background: var(--accent-soft);
  border-color: rgba(212, 165, 116, 0.45);
  box-shadow: 0 0 20px var(--accent-glow);
}

.pager__btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.pager__pages {
  font-size: 0.95rem;
  color: var(--text-muted);
  min-width: 8rem;
  text-align: center;
}

.pager__pages strong {
  color: var(--accent);
  font-weight: 600;
}