/* 报纸风主题（与 homepage/style.css :root 数值同步，改一处必须改另一处） */
:root {
  --paper: #f5efe0;
  --paper-card: #fbf7ec;
  --ink: #2c2a24;
  --ink-soft: #6b6350;
  --line: #8a7f63;
  --rule: #b8ad8e;
  --accent: #5f7a68;
  --accent-soft: #e4e9dd;
  --accent-ink: #3f5347;
  --gold: #b49a5e;
  --green: #4a7c4f;
  --red: #b0533f;
  --gray: #a8a294;
  --shadow-sm: 0 1px 2px rgba(44, 42, 36, 0.08), 0 2px 6px rgba(44, 42, 36, 0.05);
  --shadow-md: 0 2px 4px rgba(44, 42, 36, 0.08), 0 8px 20px rgba(44, 42, 36, 0.09);
  --shadow-lg: 0 4px 8px rgba(44, 42, 36, 0.1), 0 16px 32px rgba(44, 42, 36, 0.12);
  --radius-sm: 6px;
  --radius-md: 12px;
  --motion-fast: 150ms;
  --motion-base: 250ms;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--paper);
  background-image:
    radial-gradient(rgba(44, 42, 36, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, #f8f3e6 0%, var(--paper) 40%, #f1ead8 100%);
  background-size: 22px 22px, 100% 100%;
  color: var(--ink);
  font-family: Georgia, "Songti SC", "Noto Serif SC", "SimSun", serif;
}

.toolbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  background: rgba(251, 247, 236, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--line);
}

.toolbar h1 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
}

.toolbar-link,
.btn-login,
.user-chip {
  font-size: 0.85rem;
  color: var(--accent-ink);
  text-decoration: none;
  padding: 0.35rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--rule);
  background: var(--paper-card);
}

.toolbar-link:hover,
.btn-login:hover,
.user-chip:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.filters label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.filters select,
.filters input,
.login-dialog input {
  background: var(--paper-card);
  border: 1px solid var(--rule);
  color: var(--ink);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.5rem;
  font-family: inherit;
}

.filters button,
.login-actions button.primary {
  background: var(--accent);
  color: var(--paper);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}

.filters button:hover,
.login-actions button.primary:hover {
  filter: brightness(1.08);
}

.stats {
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.auth-area {
  margin-left: auto;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-checkin {
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  color: var(--accent-ink);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.btn-checkin:hover {
  border-color: var(--accent-ink);
}

.btn-login,
.user-chip {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.user-chip img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  background: rgba(44, 42, 36, 0.06);
}

.user-chip .uid {
  color: var(--ink-soft);
  font-size: 0.75rem;
}

.login-dialog {
  border: none;
  border-radius: var(--radius-md);
  background: var(--paper-card);
  color: var(--ink);
  box-shadow: var(--shadow-md);
  padding: 1.4rem;
  width: min(380px, 90vw);
  max-width: 420px;
}

.login-dialog::backdrop {
  background: rgba(44, 42, 36, 0.45);
}

.login-dialog h2 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  letter-spacing: 0.1em;
  color: var(--ink);
}

.login-hint {
  margin: 0 0 1rem;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.login-dialog input {
  width: 100%;
}

.login-error {
  color: var(--red);
  font-size: 0.8rem;
  margin: 0.5rem 0 0;
}

.login-error.hidden {
  display: none;
}

.login-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1rem;
}

.login-actions button {
  font-family: inherit;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.9rem;
  cursor: pointer;
}

main {
  padding: 12px 16px 3rem;
  max-width: 1600px;
  margin: 0 auto;
}

.gallery {
  display: flex;
  flex-direction: column;
}

.day-section {
  margin-bottom: 0.5rem;
}

.day-section + .day-section {
  margin-top: 0.25rem;
  padding-top: 0.5rem;
  border-top: 2px solid var(--rule);
}

.day-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 0 0 1rem;
  padding: 0.35rem 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.02em;
  border-top: 2px solid var(--rule);
}

.day-section + .day-section .day-divider {
  margin-top: 0.75rem;
}

.day-divider::before,
.day-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--rule) 20%, var(--rule) 80%, transparent);
}

.day-divider-date {
  flex-shrink: 0;
  padding: 0.25rem 0.85rem;
  border-radius: 999px;
  background: var(--paper-card);
  border: 1px solid var(--rule);
  color: var(--accent);
}

.day-masonry {
  column-width: 260px;
  column-gap: 12px;
}

.card {
  break-inside: avoid;
  margin-bottom: 12px;
  background: var(--paper-card);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: zoom-in;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.card img {
  display: block;
  width: 100%;
  height: auto;
  background: rgba(44, 42, 36, 0.06);
}

.card .meta {
  padding: 0.5rem 0.65rem 0.65rem;
  font-size: 0.75rem;
  color: var(--ink-soft);
  line-height: 1.35;
}

.card .meta strong {
  color: var(--ink);
  font-weight: 500;
}

.sentinel {
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.85rem;
  padding: 1rem;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 12, 16, 0.88);
  padding: 1rem;
}

.lightbox.hidden {
  display: none;
}

.lightbox figure {
  margin: 0;
  max-width: min(96vw, 1200px);
  max-height: 92vh;
  text-align: center;
}

.lightbox img {
  max-width: 100%;
  max-height: 82vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  transition: opacity 0.2s ease;
}

.lightbox.is-loading img {
  opacity: 0.25;
}

.lightbox.is-loading figure::after {
  content: "加载原图…";
  display: block;
  margin-top: 0.5rem;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.lightbox figcaption {
  margin-top: 0.75rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

@media (max-width: 600px) {
  .day-masonry {
    column-width: 160px;
  }

  .stats {
    width: 100%;
    margin-left: 0;
  }
}