:root {
  color-scheme: light;
  --bg: #f5f1eb;
  --bg-soft: #efe9dc;
  --surface: #ffffff;
  --surface-2: #fbf8f2;
  --ink: #141413;
  --ink-soft: #2c2b29;
  --muted: #6b6862;
  --muted-2: #8c8780;
  --line: rgba(20, 20, 19, 0.09);
  --line-strong: rgba(20, 20, 19, 0.16);
  --accent: #c96442;
  --accent-strong: #b5563a;
  --accent-soft: rgba(201, 100, 66, 0.1);
  --accent-ring: rgba(201, 100, 66, 0.22);
  --danger: #b5563a;
  --on-accent: #ffffff;
  --toast-bg: #1f1e1d;
  --toast-ink: #f5f1eb;
  --shadow:
    0 1px 2px rgba(20, 20, 19, 0.05),
    0 10px 28px rgba(20, 20, 19, 0.06);
  --shadow-lifted:
    0 1px 2px rgba(20, 20, 19, 0.06),
    0 22px 44px rgba(20, 20, 19, 0.1);
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --font-serif:
    "Tiempos Headline", "Source Serif Pro", "Charter", "Iowan Old Style",
    Georgia, ui-serif, serif;
  --font-sans:
    "Styrene B", "Inter", ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #1f1e1d;
  --bg-soft: #262624;
  --surface: #2a2a28;
  --surface-2: #1a1a18;
  --ink: #f5f1eb;
  --ink-soft: #e8e3d8;
  --muted: #a8a29e;
  --muted-2: #7d7872;
  --line: rgba(245, 241, 235, 0.08);
  --line-strong: rgba(245, 241, 235, 0.18);
  --accent: #d97757;
  --accent-strong: #e08868;
  --accent-soft: rgba(217, 119, 87, 0.14);
  --accent-ring: rgba(217, 119, 87, 0.3);
  --danger: #e5b96b;
  --on-accent: #1f1e1d;
  --toast-bg: #f5f1eb;
  --toast-ink: #1f1e1d;
  --shadow:
    0 1px 2px rgba(0, 0, 0, 0.3),
    0 18px 40px rgba(0, 0, 0, 0.38);
  --shadow-lifted:
    0 1px 2px rgba(0, 0, 0, 0.35),
    0 24px 50px rgba(0, 0, 0, 0.55);
}

* {
  box-sizing: border-box;
}

html,
body {
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100svh;
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition:
    background-color 220ms ease,
    color 220ms ease;
}

button,
input {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

::selection {
  background: var(--accent-soft);
  color: var(--ink);
}

.app-shell {
  display: grid;
  grid-template-columns: 296px minmax(0, 1fr);
  min-height: 100svh;
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: 28px;
  height: 100svh;
  padding: 32px 22px;
  background: var(--surface);
  border-right: 1px solid var(--line);
}

.brand-lockup {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
}

.brand-crab {
  display: block;
  width: 64px;
  aspect-ratio: 1;
  object-fit: contain;
  image-rendering: pixelated;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent-strong);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: var(--font-serif);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}

h1 {
  margin-bottom: 0;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.15;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.tabs {
  display: grid;
  gap: 4px;
}

.tab-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  transition:
    background 160ms ease,
    color 160ms ease,
    border-color 160ms ease,
    transform 160ms ease;
}

.tab-button:hover,
.tab-button:focus-visible {
  background: var(--bg-soft);
  color: var(--ink);
  outline: none;
}

.tab-button.is-active {
  background: var(--bg-soft);
  border-color: var(--line);
  color: var(--ink);
  font-weight: 600;
}

.tab-button:active {
  transform: translateY(1px);
}

.tab-button span {
  min-width: 22px;
  height: 22px;
  padding: 0 7px;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 11px;
  font-weight: 700;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: 38px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    color 160ms ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  background: var(--bg-soft);
  border-color: var(--line-strong);
  color: var(--ink);
  outline: none;
}

.theme-toggle .theme-icon {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

.workspace {
  min-width: 0;
  padding: 40px clamp(20px, 4vw, 56px) 64px;
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
  animation: rise-in 320ms ease both;
}

.workspace-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 26px;
}

.search-box {
  display: grid;
  gap: 6px;
  width: min(390px, 42vw);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

input {
  min-height: 42px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  outline: none;
  padding: 0 12px;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

input::placeholder {
  color: var(--muted-2);
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.chip {
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  transition:
    background 160ms ease,
    color 160ms ease,
    border-color 160ms ease,
    transform 160ms ease;
}

.chip:hover,
.chip:focus-visible {
  background: var(--bg-soft);
  border-color: var(--line-strong);
  color: var(--ink);
  outline: none;
}

.chip.is-active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-strong);
}

.chip:active {
  transform: translateY(1px);
}

.meme-grid,
.source-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(248px, 1fr));
  gap: 18px;
}

.meme-card,
.source-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.meme-card:hover,
.source-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-lifted);
}

.meme-media {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 228px;
  aspect-ratio: 1;
  padding: 22px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
}

.meme-media::after {
  content: "预览加载失败";
  display: none;
  color: var(--muted);
  font-size: 13px;
}

.meme-media.is-broken img {
  display: none;
}

.meme-media.is-broken::after {
  display: block;
}

.meme-media img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
}

.meme-info,
.source-card {
  display: grid;
  gap: 12px;
  padding: 16px;
}

.meme-title-row {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.meme-title-row h3,
.source-card h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.005em;
  color: var(--ink);
}

.meme-title-row span {
  flex: 0 0 auto;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.meme-note,
.source-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.55;
}

.tag-line {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  min-height: 24px;
}

.tag-line span {
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--muted);
  font-size: 12px;
}

.card-actions,
.header-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.primary-action,
.ghost-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 600;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.primary-action {
  background: var(--accent);
  color: var(--on-accent);
  border-color: var(--accent);
}

.primary-action:hover,
.primary-action:focus-visible {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  outline: none;
}

.ghost-action {
  background: transparent;
  border-color: var(--line);
  color: var(--ink-soft);
}

.ghost-action:hover,
.ghost-action:focus-visible {
  border-color: var(--accent);
  color: var(--accent-strong);
  background: var(--accent-soft);
  outline: none;
}

.ghost-action.danger {
  color: var(--danger);
}

.ghost-action.danger:hover,
.ghost-action.danger:focus-visible {
  border-color: var(--danger);
  background: var(--accent-soft);
}

.primary-action:active,
.ghost-action:active {
  transform: translateY(1px);
}

.pack-empty {
  display: none;
  min-height: 58vh;
  place-items: center;
  align-content: center;
  gap: 18px;
  color: var(--muted);
}

.pack-empty.is-visible {
  display: grid;
}

.pack-empty img {
  width: 104px;
  image-rendering: pixelated;
  opacity: 0.85;
}

.pack-empty p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--ink-soft);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 10;
  transform: translate(-50%, 18px);
  opacity: 0;
  pointer-events: none;
  max-width: calc(100vw - 32px);
  padding: 11px 18px;
  border-radius: 999px;
  background: var(--toast-bg);
  color: var(--toast-ink);
  font-size: 13.5px;
  font-weight: 600;
  box-shadow: var(--shadow-lifted);
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
    padding: 20px;
    gap: 18px;
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .tabs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .tab-button {
    justify-content: center;
    gap: 8px;
    text-align: center;
  }

  .workspace {
    padding: 24px 20px 48px;
  }

  .workspace-header {
    display: grid;
    align-items: start;
  }

  .search-box {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .brand-lockup {
    grid-template-columns: 52px minmax(0, 1fr);
  }

  .brand-crab {
    width: 52px;
  }

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

  .workspace {
    padding: 18px 16px 40px;
  }

  .meme-grid,
  .source-grid {
    grid-template-columns: 1fr;
  }

  .header-actions,
  .card-actions {
    display: grid;
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}