/* ═══════════════════════════════════════════
   NEO-BRUTALISM GALLERY — Design System v2
   Zero external dependencies. System fonts only.
   ═══════════════════════════════════════════ */

/* === CSS Variables === */
:root {
  /* Candy Palette */
  --pink:       #FF477E;
  --pink-light: #FF8FAB;
  --pink-bg:    #FFF0F5;
  --yellow:     #FFD60A;
  --yellow-bg:  #FFF9D6;
  --green:      #30D158;
  --green-bg:   #E8FFE8;
  --blue:       #0A84FF;
  --blue-bg:    #E8F4FF;
  --purple:     #AF52DE;
  --purple-bg:  #F8EDFF;
  --orange:     #FF9F0A;
  --orange-bg:  #FFF4E0;
  --teal:       #5AC8FA;
  --teal-bg:    #E8FAFF;
  
  /* Surfaces */
  --bg-cream:   #FFFBF5;
  --bg-white:   #FFFFFF;
  --ink:        #1A1A2E;
  --ink-light:  #4A4A6A;
  --ink-muted:  #8888AA;
  --border:     #000000;
  
  /* Typography — system fonts, NO google fonts */
  --font-display:  'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body:     'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:     'Cascadia Code', 'Fira Code', 'JetBrains Mono', 'Courier New', Consolas, monospace;
  
  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;
  
  /* Borders & Shadows — 轻量化阴影 */
  --border-width: 3px;
  --shadow-sm: 2px 2px 0 rgba(0,0,0,0.2);
  --shadow-md: 3px 3px 0 rgba(0,0,0,0.18);
  --shadow-lg: 5px 5px 0 rgba(0,0,0,0.16);
  --shadow-xl: 7px 7px 0 rgba(0,0,0,0.14);
  
  /* Radius */
  --radius-none: 0;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  
  /* Transitions */
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out:    cubic-bezier(0, 0, 0.2, 1);
}

/* === Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-cream);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Subtle noise texture overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 300 300' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

/* === Typography === */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0;
}

/* === Scrollbar === */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-cream); border-left: 2px solid var(--border); }
::-webkit-scrollbar-thumb { background: var(--ink); border: 2px solid var(--border); border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: var(--pink); }

/* ═══════════════════════════════════════════
   LAYOUT
   ═══════════════════════════════════════════ */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* ═══════════════════════════════════════════
   NEO-BRUTALISM BUTTONS
   ═══════════════════════════════════════════ */
.btn-brutal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.8rem 1.8rem;
  border: var(--border-width) solid var(--border);
  background: var(--bg-white);
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  box-shadow: var(--shadow-md);
  transition: all 0.15s var(--ease-out);
  user-select: none;
  border-radius: var(--radius-none);
  position: relative;
}
.btn-brutal:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 rgba(0,0,0,0.2);
}
.btn-brutal:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(0,0,0,0.2);
}

/* Color variants */
.btn-brutal.pink   { background: var(--pink);   color: #fff; }
.btn-brutal.yellow { background: var(--yellow); color: var(--ink); }
.btn-brutal.green  { background: var(--green);  color: #fff; }
.btn-brutal.blue   { background: var(--blue);   color: #fff; }
.btn-brutal.purple { background: var(--purple); color: #fff; }
.btn-brutal.dark   { background: var(--ink);    color: #fff; }
.btn-brutal.orange { background: var(--orange); color: #fff; }

/* Size variants */
.btn-brutal.sm {
  font-size: 0.8rem;
  padding: 0.5rem 1.1rem;
  box-shadow: var(--shadow-sm);
}
.btn-brutal.sm:hover { box-shadow: 4px 4px 0 rgba(0,0,0,0.2); transform: translate(-1px, -1px); }
.btn-brutal.sm:active { box-shadow: 1px 1px 0 rgba(0,0,0,0.2); transform: translate(1px, 1px); }

.btn-brutal.lg {
  font-size: 1.15rem;
  padding: 1rem 2.5rem;
  box-shadow: var(--shadow-md);
}
.btn-brutal.lg:hover { box-shadow: 6px 6px 0 rgba(0,0,0,0.18); }
.btn-brutal.lg:active { box-shadow: var(--shadow-sm); transform: translate(2px, 2px); }

/* Block button */
.btn-brutal.block { width: 100%; }

/* ═══════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════ */
.hero {
  padding: 1.25rem 0 1rem;
  position: relative;
  overflow: hidden;
  background: var(--bg-white);
  border-bottom: 3px solid var(--border);
}

/* Hero background pattern — diagonal stripes */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 12px,
    rgba(0,0,0,0.03) 12px,
    rgba(0,0,0,0.03) 24px
  );
  pointer-events: none;
}

.hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  position: relative;
  z-index: 1;
}

.hero-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  min-width: 0;
  flex: 1;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  color: var(--ink);
  white-space: nowrap;
}

.hero-title .hl {
  display: inline-block;
  padding: 0.04em 0.15em;
  border: 2.5px solid var(--border);
}

.hero-title .hl-pink   { background: var(--pink); color: #fff; transform: rotate(-1deg); }
.hero-title .hl-yellow { background: var(--yellow); transform: rotate(1deg); }
.hero-title .hl-green  { background: var(--green); color: #fff; transform: rotate(-2deg); }
.hero-title .hl-blue   { background: var(--blue); color: #fff; transform: rotate(0.5deg); }
.hero-title .hl-purple { background: var(--purple); color: #fff; transform: rotate(-1.5deg); }

.hero-tagline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* Hero stickers — 紧凑行内 */
.hero-stickers {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0;
}

.sticker {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.28rem 0.7rem;
  border: 2px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.15);
  transition: all 0.2s var(--ease-bounce);
  cursor: default;
  user-select: none;
}
.sticker:hover {
  transform: translateY(-1px) !important;
  box-shadow: 3px 3px 0 rgba(0,0,0,0.2);
}
.sticker.s-1 { transform: rotate(-3deg); background: var(--pink); color: #fff; }
.sticker.s-2 { transform: rotate(2deg);  background: var(--yellow); }
.sticker.s-3 { transform: rotate(-2deg); background: var(--green); color: #fff; }
.sticker.s-4 { transform: rotate(2deg); background: var(--blue); color: #fff; }
.sticker.s-5 { transform: rotate(-1deg); background: var(--purple); color: #fff; }
.sticker.s-6 { transform: rotate(1.5deg); background: var(--orange); }
.sticker.s-7 { transform: rotate(-2deg); background: var(--teal); }
.sticker.s-8 { transform: rotate(1.5deg);  background: var(--pink-light); color: #fff; }
.sticker.s-9 { transform: rotate(-2.5deg); background: var(--blue-bg); }
.sticker.s-10 { transform: rotate(2.5deg); background: var(--ink); color: #fff; }

/* Hero right side — stickers + stats + admin btn */
.hero-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ═══════════════════════════════════════════
   STATS BAR — 紧凑内联
   ═══════════════════════════════════════════ */
.stats-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0 0;
  border-bottom: none;
}

.stat-card {
  background: var(--bg-white);
  border: 2px solid var(--border);
  padding: 0.45rem 0.85rem;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.12);
  min-width: auto;
}

.stat-card .stat-num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.3rem;
  line-height: 1;
  color: var(--ink);
}

.stat-card .stat-lbl {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin-top: 0.1rem;
}

.stat-card.pink  { border-color: var(--pink);  }
.stat-card.green { border-color: var(--green); }
.stat-card.blue  { border-color: var(--blue);  }

/* ═══════════════════════════════════════════
   SORT BAR + ZOOM CONTROLS (始终横向)
   ═══════════════════════════════════════════ */
.controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0 0.5rem;
  flex-wrap: nowrap;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.sort-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  flex-wrap: nowrap;
}

.sort-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  margin-right: 0.5rem;
  white-space: nowrap;
}

.sort-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.5rem 1.1rem;
  border: 2px solid var(--border);
  background: var(--bg-white);
  cursor: pointer;
  color: var(--ink-light);
  box-shadow: 2px 2px 0 rgba(0,0,0,0.12);
  transition: all 0.15s var(--ease-out);
  border-radius: var(--radius-none);
  white-space: nowrap;
}
.sort-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.18);
}
.sort-btn.active {
  background: var(--ink);
  color: #fff;
  box-shadow: 1px 1px 0 rgba(0,0,0,0.2);
  transform: translate(1px, 1px);
  border-color: var(--ink);
}

/* Zoom bar */
.zoom-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

/* Hide controls-bar scrollbar at all sizes */
.controls-bar::-webkit-scrollbar { display: none; }

.zoom-label {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink-light);
  cursor: default;
  user-select: none;
}

.zoom-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100px;
  height: 10px;
  background: var(--bg-cream);
  border: 2.5px solid var(--border);
  border-radius: 0;
  outline: none;
  cursor: pointer;
}

.zoom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--ink);
  border: 2px solid var(--border);
  border-radius: 0;
  cursor: pointer;
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.2);
  transition: background 0.15s var(--ease-out);
}

.zoom-slider::-webkit-slider-thumb:hover {
  background: var(--pink);
}

.zoom-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--ink);
  border: 2px solid var(--border);
  border-radius: 0;
  cursor: pointer;
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.2);
}

/* ═══════════════════════════════════════════
   MASONRY GRID
   ═══════════════════════════════════════════ */
.masonry-grid {
  columns: 4;
  column-gap: 1.25rem;
  padding: 0.5rem 0 2rem;
}

@media (max-width: 1200px) { .masonry-grid { columns: 3; } }
@media (max-width: 768px)  { .masonry-grid { columns: 2; column-gap: 0.75rem; } }
/* 480px 以下由 JS _applyZoom() 控制，CSS 保底 2 列 */

/* ═══════════════════════════════════════════
   IMAGE CARD
   ═══════════════════════════════════════════ */
.image-card {
  background: var(--bg-white);
  border: 2.5px solid var(--border);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.15);
  border-radius: var(--radius-none);
  overflow: hidden;
  transition: all 0.3s var(--ease-bounce);
  cursor: pointer;
  break-inside: avoid;
  margin-bottom: 1rem;
  position: relative;
}

.image-card:hover {
  transform: translate(-3px, -4px);
  box-shadow: 6px 6px 0 rgba(0,0,0,0.18);
}

.image-card:active {
  transform: scale(0.98);
}

/* Image container */
.image-card .img-wrap {
  position: relative;
  overflow: hidden;
  background: var(--bg-cream);
  line-height: 0;
}

.image-card .img-wrap img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s var(--ease-smooth);
}

.image-card:hover .img-wrap img {
  transform: scale(1.06);
}

/* Rank badge */
.image-card .rank-badge {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  width: 36px;
  height: 36px;
  background: var(--yellow);
  border: 2.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  color: var(--ink);
  z-index: 5;
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.2);
}

.image-card .rank-badge.top1 { background: var(--pink); color: #fff; width: 44px; height: 44px; font-size: 1.3rem; }
.image-card .rank-badge.top2 { background: var(--blue); color: #fff; }
.image-card .rank-badge.top3 { background: var(--purple); color: #fff; }

/* Card info bar */
.image-card .card-info {
  padding: 0.8rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  border-top: 2.5px solid var(--border);
  background: var(--bg-white);
}

.image-card .card-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--ink);
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Like button */
.like-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.8rem;
  border: 2px solid var(--border);
  background: var(--bg-white);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--ink);
  transition: all 0.15s var(--ease-out);
  flex-shrink: 0;
  border-radius: var(--radius-none);
  box-shadow: 2px 2px 0 #000;
}
.like-btn:hover {
  background: var(--pink);
  color: #fff;
  border-color: var(--ink);
  transform: scale(1.05);
}
.like-btn:active {
  transform: scale(0.92);
}
.like-btn .heart-icon {
  font-size: 1rem;
  transition: transform 0.3s var(--ease-bounce);
  line-height: 1;
}
.like-btn .like-count {
  font-weight: 700;
  min-width: 1.8ch;
  text-align: center;
}

/* Liked state */
.like-btn.liked {
  background: var(--pink);
  color: #fff;
  animation: popPulse 0.4s var(--ease-bounce);
}
.like-btn.liked .heart-icon {
  transform: scale(1.3);
}

@keyframes popPulse {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.2); }
  70%  { transform: scale(0.92); }
  100% { transform: scale(1); }
}

/* Card animations */
.image-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out), box-shadow 0.3s var(--ease-bounce);
}
.image-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════
   LIGHTBOX
   ═══════════════════════════════════════════ */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.lightbox-box {
  position: relative;
  max-width: 92vw;
  max-height: 92vh;
  background: var(--bg-white);
  border: 4px solid var(--border);
  box-shadow: 16px 16px 0 rgba(0,0,0,0.3);
  display: flex;
  flex-direction: column;
  animation: lbIn 0.4s var(--ease-bounce);
}

@keyframes lbIn {
  from { opacity: 0; transform: scale(0.8) translateY(30px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.lightbox-img-area {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-cream);
  padding: 1rem;
  min-height: 250px;
  overflow: auto;
}

.lightbox-img-area img {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
}

.lightbox-info-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-top: 3px solid var(--border);
  background: var(--bg-white);
  gap: 1rem;
  flex-wrap: wrap;
}

.lightbox-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  flex: 1;
  min-width: 140px;
}

.lightbox-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-muted);
}

.lightbox-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lightbox-close {
  position: absolute;
  top: -16px;
  right: -16px;
  width: 48px;
  height: 48px;
  border: 3px solid var(--border);
  background: var(--pink);
  color: #fff;
  font-size: 1.5rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 5px 5px 0 #000;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all 0.15s var(--ease-out);
  font-family: var(--font-mono);
  border-radius: 0;
}
.lightbox-close:hover {
  background: #000;
  transform: scale(1.1);
}
.lightbox-close:active {
  transform: scale(0.9);
}

/* ═══════════════════════════════════════════
   EMPTY STATE
   ═══════════════════════════════════════════ */
.empty-state {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  background: repeating-linear-gradient(
    45deg,
    var(--bg-white),
    var(--bg-white) 10px,
    var(--bg-cream) 10px,
    var(--bg-cream) 20px
  );
  border: 4px dashed var(--border);
  margin: 2rem 0;
}

.empty-state .empty-emoji {
  font-size: 5rem;
  margin-bottom: 1rem;
  display: block;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

.empty-state .empty-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.empty-state .empty-desc {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-muted);
  max-width: 400px;
  margin: 0 auto;
}

/* ═══════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════ */
.site-footer {
  border-top: 4px solid var(--border);
  background: linear-gradient(135deg, var(--bg-white) 0%, var(--yellow-bg) 100%);
  padding: 2.5rem 0;
  margin-top: var(--space-3xl);
  text-align: center;
}

.site-footer .footer-brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.site-footer .footer-sub {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
  margin-top: 0.5rem;
  letter-spacing: 0.04em;
}

.footer-doodle {
  display: inline-flex;
  gap: 0.25rem;
  margin: 0 0.5rem;
}

.footer-doodle span {
  display: inline-block;
  animation: bounce 1.4s ease infinite;
}
.footer-doodle span:nth-child(2) { animation-delay: 0.15s; }
.footer-doodle span:nth-child(3) { animation-delay: 0.3s; }

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  40%      { transform: translateY(-10px); }
}

/* ═══════════════════════════════════════════
   ADMIN PAGE SPECIFIC
   ═══════════════════════════════════════════ */

/* Login Page */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: repeating-linear-gradient(
    45deg,
    var(--bg-cream),
    var(--bg-cream) 15px,
    var(--bg-white) 15px,
    var(--bg-white) 30px
  );
}

.login-box {
  background: var(--bg-white);
  border: 4px solid var(--border);
  box-shadow: 12px 12px 0 #000;
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
}

.login-box h1 {
  font-size: 2rem;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.login-box .login-sub {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
  margin-bottom: 1.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.form-field {
  margin-bottom: 1.25rem;
}

.form-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.4rem;
  color: var(--ink);
}

.input-brutal {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 3px solid var(--border);
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--bg-cream);
  color: var(--ink);
  outline: none;
  box-sizing: border-box;
  transition: all 0.15s var(--ease-out);
  border-radius: 0;
}
.input-brutal:focus {
  background: var(--bg-white);
  box-shadow: 5px 5px 0 #000;
}

.login-error {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--pink);
  font-weight: 700;
  padding: 0.5rem 0.75rem;
  background: var(--pink-bg);
  border: 2px solid var(--pink);
  margin-bottom: 1rem;
  display: none;
}
.login-error.show { display: block; }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%      { transform: translateX(-8px); }
  40%      { transform: translateX(8px); }
  60%      { transform: translateX(-6px); }
  80%      { transform: translateX(4px); }
}

/* Admin Nav */
.admin-nav {
  background: var(--bg-white);
  border-bottom: 4px solid var(--border);
  padding: 0.9rem 0;
  position: sticky;
  top: 0;
  z-index: 500;
}

.admin-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.admin-nav .nav-logo {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

.admin-nav .nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Admin Content */
.admin-content {
  padding: 2rem 0 4rem;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.admin-header h2 {
  font-size: 1.6rem;
  text-transform: uppercase;
}

.admin-meta {
  display: flex;
  gap: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-light);
}
.admin-meta strong {
  font-weight: 800;
  color: var(--ink);
}

/* Upload Zone */
.upload-zone {
  background: var(--bg-white);
  border: 4px dashed var(--border);
  text-align: center;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  margin-bottom: 2rem;
}

/* 紧凑上传区 */
.upload-zone.compact {
  padding: 1.25rem 1.5rem;
}

.upload-zone.compact .upload-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.upload-zone.compact .upload-emoji {
  font-size: 2rem;
  margin-bottom: 0;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.upload-zone.compact .upload-text {
  text-align: left;
  min-width: 0;
}

.upload-zone.compact .upload-headline {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.upload-zone.compact .upload-hint {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--ink-muted);
  line-height: 1.35;
}

.upload-zone:hover {
  background: var(--yellow-bg);
  border-style: solid;
  box-shadow: var(--shadow-lg);
}
.upload-zone.drag-over {
  background: var(--green-bg);
  border-style: solid;
  border-color: var(--green);
  box-shadow: 10px 10px 0 var(--green);
}

/* Admin Sort Bar */
.admin-sort-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: nowrap;
  padding: 0 0 1.25rem;
  margin-bottom: 0.25rem;
}

.admin-sort-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  margin-right: 0.5rem;
  white-space: nowrap;
}

.admin-sort-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.4rem 0.9rem;
  border: 2px solid var(--border);
  background: var(--bg-white);
  cursor: pointer;
  color: var(--ink-light);
  box-shadow: 2px 2px 0 #000;
  transition: all 0.15s var(--ease-out);
  white-space: nowrap;
}
.admin-sort-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 #000;
}
.admin-sort-btn.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  box-shadow: 1px 1px 0 #000;
  transform: translate(1px, 1px);
}

/* Admin Table */
.admin-table-wrap {
  background: var(--bg-white);
  border: 3px solid var(--border);
  box-shadow: var(--shadow-md);
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.admin-table thead th {
  background: var(--ink);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}

.admin-table tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #e0e0e0;
  vertical-align: middle;
}

.admin-table tbody tr:hover td {
  background: var(--bg-cream);
}

.admin-table .td-thumb {
  width: 64px;
  height: 48px;
  object-fit: cover;
  border: 2px solid var(--border);
}

.admin-table .td-input {
  border: 2px solid var(--border);
  padding: 0.4rem 0.6rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  background: var(--bg-cream);
  width: 100%;
  box-sizing: border-box;
  border-radius: 0;
}
.admin-table .td-input:focus {
  background: var(--bg-white);
  outline: none;
  box-shadow: 2px 2px 0 #000;
}

/* ═══════════════════════════════════════════
   TOAST NOTIFICATIONS
   ═══════════════════════════════════════════ */
.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 20000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  background: var(--bg-white);
  border: 3px solid var(--border);
  padding: 1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  box-shadow: var(--shadow-md);
  animation: toastSlideIn 0.35s var(--ease-bounce);
  max-width: 380px;
  pointer-events: auto;
}

.toast.ok  { border-color: var(--green); background: var(--green-bg); }
.toast.err { border-color: var(--pink);  background: var(--pink-bg); }
.toast.info{ border-color: var(--blue);  background: var(--blue-bg); }

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateX(120px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ═══════════════════════════════════════════
   COS SETTINGS PANEL
   ═══════════════════════════════════════════ */
.cos-settings-panel {
  background: var(--bg-white);
  border: 3px solid var(--border);
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
}

.cos-settings-toggle {
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--ink);
  color: #fff;
  border: none;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s var(--ease-out);
}
.cos-settings-toggle:hover {
  background: #2A2A3E;
}

.cos-settings-toggle .toggle-arrow {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  transition: transform 0.25s var(--ease-out);
}
.cos-settings-toggle.open .toggle-arrow {
  transform: rotate(180deg);
}

.cos-settings-body {
  padding: 1.5rem;
  border-top: 3px solid var(--border);
}

.cos-settings-body .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.cos-settings-body .form-field {
  margin-bottom: 1rem;
}
.cos-settings-body .form-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
  color: var(--ink);
}

.cos-settings-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.cos-status {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  margin-left: 0.5rem;
}
.cos-status.ok  { color: var(--green); }
.cos-status.err { color: var(--pink); }

@media (max-width: 768px) {
  .cos-settings-body .form-row {
    grid-template-columns: 1fr;
  }
  .site-settings-body .form-row {
    grid-template-columns: 1fr;
  }
}

/* ═══════════════════════════════════════════
   BACKUP PANEL (管理后台 - 数据备份与恢复)
   ═══════════════════════════════════════════ */
.backup-panel {
  background: var(--bg-white);
  border: 3px solid var(--border);
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
}

.backup-body {
  padding: 1.5rem;
  border-top: 3px solid var(--border);
}

.backup-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.backup-include-images {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-light);
  cursor: pointer;
  user-select: none;
}

.backup-include-images input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--blue);
  cursor: pointer;
}

.backup-img-badge {
  display: inline-block;
  background: var(--green-bg);
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  padding: 0.1em 0.4em;
  border: 1.5px solid var(--green);
  border-radius: 3px;
  margin-left: 0.4rem;
  vertical-align: middle;
}

/* 恢复区 */
.backup-restore-zone {
  border: 2px dashed var(--border);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  background: var(--bg-light);
}

.backup-restore-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.backup-restore-hint {
  font-size: 0.7rem;
  color: var(--ink-muted);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.backup-restore-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.backup-upload-btn {
  cursor: pointer;
  position: relative;
}

.backup-restore-name {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 备份列表 */
.backup-list-section {
  border-top: 2px solid var(--border);
  padding-top: 1.25rem;
}

.backup-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.backup-total-size {
  font-size: 0.68rem;
  color: var(--ink-muted);
  font-weight: 400;
}

.backup-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 300px;
  overflow-y: auto;
}

.backup-empty {
  text-align: center;
  padding: 2rem;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.backup-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.85rem;
  border: 2px solid var(--border);
  background: var(--bg-white);
  gap: 0.5rem;
  flex-wrap: wrap;
}

.backup-item-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.backup-item-name {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  word-break: break-all;
}

.backup-item-meta {
  font-size: 0.65rem;
  color: var(--ink-muted);
  display: flex;
  gap: 1rem;
}

.backup-item-actions {
  display: flex;
  gap: 0.4rem;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════
   SITE SETTINGS PANEL (管理后台)
   ═══════════════════════════════════════════ */
.site-settings-panel {
  background: var(--bg-white);
  border: 3px solid var(--border);
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
}

.site-settings-body {
  padding: 1.5rem;
  border-top: 3px solid var(--border);
}

.site-settings-body .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.site-settings-body .form-field {
  margin-bottom: 1rem;
}
.site-settings-body .form-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
  color: var(--ink);
}

.site-settings-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

/* 标签颜色选择器 */
.sticker-color-select {
  width: 100%;
  padding: 0.55rem 0.6rem;
  border: 2.5px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background: var(--bg-cream);
  color: var(--ink);
  cursor: pointer;
  border-radius: 0;
}
.sticker-color-select:focus {
  outline: none;
  background: var(--bg-white);
  box-shadow: 2px 2px 0 #000;
}

/* 标签管理列表 */
.sticker-manager {
  margin-bottom: 1rem;
}

.sticker-manager-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
  color: var(--ink);
}

.sticker-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sticker-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-cream);
  border: 2px solid var(--border);
  padding: 0.5rem 0.75rem;
}

.sticker-item .sticker-input {
  flex: 1;
  border: 2px solid var(--border);
  padding: 0.4rem 0.6rem;
  font-family: var(--font-body);
  font-size: 0.82rem;
  background: var(--bg-white);
  border-radius: 0;
}
.sticker-item .sticker-input:focus {
  outline: none;
  box-shadow: 2px 2px 0 #000;
}

.sticker-item .sticker-preview {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.6rem;
  border: 2px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  min-width: 70px;
  justify-content: center;
}

.sticker-add-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.4rem 0.9rem;
  border: 2px dashed var(--border);
  background: var(--bg-white);
  cursor: pointer;
  margin-top: 0.5rem;
  transition: all 0.15s var(--ease-out);
}
.sticker-add-btn:hover {
  background: var(--green-bg);
  border-style: solid;
}

/* ═══════════════════════════════════════════
   UTILITIES
   ═══════════════════════════════════════════ */
.text-center { text-align: center; }
.hidden { display: none !important; }
.w-full { width: 100%; }
.mt-1 { margin-top: var(--space-md); }
.mt-2 { margin-top: var(--space-xl); }
.mt-3 { margin-top: var(--space-2xl); }
.mb-1 { margin-bottom: var(--space-md); }
.mb-2 { margin-bottom: var(--space-xl); }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */

/* ─── 平板 / 小屏笔记本 (≤768px) ─── */
@media (max-width: 768px) {
  :root {
    --space-3xl: 2.5rem;
    --space-2xl: 1.75rem;
    --space-xl: 1.25rem;
  }

  .container { padding: 0 1rem; }

  /* Hero */
  .hero {
    padding: var(--space-2xl) 0 var(--space-xl);
    border-bottom-width: 3px;
  }
  .hero-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .hero { padding: 1rem 0 0.75rem; }
  .hero-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  .hero-brand {
    min-width: unset;
    width: 100%;
    flex-wrap: wrap;
  }
  .hero-title {
    font-size: clamp(1.3rem, 6vw, 1.8rem);
  }
  .hero-tagline {
    font-size: 0.6rem;
    margin-top: 0;
  }

  /* Hero right — stack on tablet */
  .hero-right {
    width: 100%;
    justify-content: space-between;
    gap: 0.5rem;
  }

  .hero-stickers {
    gap: 0.35rem;
    margin-top: 0;
    order: -1;
  }
  .sticker {
    font-size: 0.55rem;
    padding: 0.22rem 0.55rem;
    border-width: 1.8px;
  }

  /* Stats — inline flex */
  .stats-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0 0;
  }

  /* Controls — 始终横向，溢出滚 */
  .controls-bar {
    gap: 0.75rem;
    padding: 1rem 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .controls-bar::-webkit-scrollbar { display: none; }

  /* Sort */
  .sort-bar {
    gap: 0.5rem;
  }
  .sort-label {
    margin-right: 0;
    font-size: 0.6rem;
  }
  .sort-btn {
    font-size: 0.7rem;
    padding: 0.5rem 0.8rem;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  /* Zoom bar */
  .zoom-bar {
    gap: 0.35rem;
  }
  .zoom-slider {
    width: 70px;
    height: 10px;
  }
  .zoom-slider::-webkit-slider-thumb {
    width: 20px;
    height: 20px;
  }

  /* Masonry */
  .masonry-grid { columns: 2; column-gap: 0.75rem; }
  .image-card { margin-bottom: 0.75rem; }

  /* Card info */
  .image-card .card-info { padding: 0.6rem 0.75rem; }
  .image-card .card-title { font-size: 0.8rem; }
  .like-btn {
    padding: 0.4rem 0.7rem;
    min-height: 40px;
    min-width: 56px;
    font-size: 0.72rem;
  }

  /* Lightbox — 全屏 */
  .lightbox-overlay { padding: 0; }
  .lightbox-box {
    max-width: 100vw;
    max-height: 100vh;
    border-width: 2px;
    box-shadow: none;
  }
  .lightbox-close {
    top: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    border-width: 2px;
    box-shadow: 3px 3px 0 #000;
  }
  .lightbox-img-area { padding: 0.75rem; min-height: 200px; }
  .lightbox-img-area img { max-height: 55vh; }
  .lightbox-info-bar {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.75rem 1rem;
    gap: 0.5rem;
  }
  .lightbox-title { font-size: 0.95rem; }
  .lightbox-meta { gap: 0.75rem; font-size: 0.68rem; }
  .lightbox-actions { width: 100%; justify-content: flex-end; }

  /* Footer */
  .site-footer { padding: 2rem 0; margin-top: var(--space-2xl); }
  .site-footer .footer-brand { font-size: 1.05rem; }
  .site-footer .footer-sub { font-size: 0.65rem; max-width: 280px; margin: 0.5rem auto 0; }

  /* Empty state */
  .empty-state { padding: var(--space-2xl) 1rem; }
  .empty-state .empty-emoji { font-size: 3.5rem; }
  .empty-state .empty-title { font-size: 1.25rem; }

  /* ─── 管理后台 ─── */

  /* Login */
  .login-page { padding: 1rem; }
  .login-box { padding: 1.5rem; max-width: 100%; box-shadow: 6px 6px 0 #000; }
  .login-box h1 { font-size: 1.5rem; }

  /* Admin nav */
  .admin-nav { padding: 0.6rem 0; position: sticky; }
  .admin-nav .container {
    flex-direction: column;
    gap: 0.5rem;
  }
  .admin-nav .nav-logo { font-size: 0.85rem; }
  .admin-nav .nav-actions { width: 100%; justify-content: space-between; }

  /* Admin content */
  .admin-content { padding: 1.25rem 0 2.5rem; }
  .admin-header { flex-direction: column; gap: 0.5rem; margin-bottom: 1rem; }
  .admin-header h2 { font-size: 1.25rem; }
  .admin-meta { gap: 0.8rem; font-size: 0.7rem; }

  /* Admin sort bar */
  .admin-sort-bar {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 0.35rem;
  }
  .admin-sort-bar::-webkit-scrollbar { display: none; }
  .admin-sort-btn {
    font-size: 0.65rem;
    padding: 0.35rem 0.65rem;
    min-height: 40px;
  }

  /* Upload zone */
  .upload-zone { padding: 1.5rem 1rem; border-width: 3px; }
  .upload-zone.compact { padding: 1rem 0.75rem; }
  .upload-zone.compact .upload-row { flex-direction: column; gap: 0.5rem; text-align: center; }
  .upload-zone.compact .upload-text { text-align: center; }
  .upload-zone.compact .upload-emoji { font-size: 1.5rem; }
  .upload-zone .upload-emoji { font-size: 2.5rem; }
  .upload-zone .upload-headline { font-size: 0.95rem; }
  .upload-zone .upload-hint { font-size: 0.65rem; }

  /* Table */
  .admin-table-wrap { border-width: 2px; }
  .admin-table { font-size: 0.72rem; }
  .admin-table thead th {
    font-size: 0.6rem;
    padding: 0.6rem 0.6rem;
  }
  .admin-table tbody td { padding: 0.5rem 0.6rem; }
  .admin-table .td-input {
    font-size: 0.7rem;
    padding: 0.35rem 0.45rem;
  }
  .admin-table .td-thumb { width: 48px; height: 36px; }
  .td-likes { width: 56px !important; }

  /* Panels */
  .cos-settings-body { padding: 1rem; }
  .cos-settings-body .form-row { grid-template-columns: 1fr; gap: 0; }
  .site-settings-body { padding: 1rem; }
  .site-settings-body .form-row { grid-template-columns: 1fr; gap: 0; }

  /* Settings toggles */
  .cos-settings-toggle {
    padding: 0.8rem 1rem;
    font-size: 0.8rem;
  }
  .cos-settings-actions,
  .site-settings-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .cos-settings-actions .btn-brutal,
  .site-settings-actions .btn-brutal {
    width: 100%;
  }

  /* Sticker manager */
  .sticker-item {
    flex-wrap: wrap;
    gap: 0.4rem;
  }
  .sticker-item .sticker-input { min-width: 100px; }
  .sticker-item .sticker-preview { min-width: 60px; font-size: 0.58rem; }
}

/* ─── 手机竖屏 (≤480px) ─── */
@media (max-width: 480px) {
  :root {
    --space-3xl: 2rem;
    --space-2xl: 1.5rem;
  }

  /* Hero — 紧凑 */
  .hero {
    padding: 0.85rem 0 0.65rem;
  }
  .hero-inner {
    gap: 0.5rem;
  }
  .hero-brand {
    gap: 0.4rem;
  }
  .hero-title {
    font-size: clamp(1.15rem, 8vw, 1.5rem);
  }
  .hero-title .hl {
    display: inline;
    padding: 0.02em 0.1em;
    border-width: 2px;
  }
  .hero-tagline { font-size: 0.55rem; }

  /* Hero right */
  .hero-right {
    width: 100%;
    flex-wrap: wrap;
    gap: 0.35rem;
  }
  .hero-stickers {
    gap: 0.3rem;
    justify-content: flex-start;
    order: -1;
  }
  .sticker {
    font-size: 0.5rem;
    padding: 0.2rem 0.45rem;
    border-width: 1.5px;
    box-shadow: 1px 1px 0 rgba(0,0,0,0.12);
  }
  .sticker:hover {
    transform: none !important;
    box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.15);
  }

  /* Stats */
  .stats-bar {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0 0;
  }
  .stat-card { padding: 0.5rem 0.75rem; }
  .stat-card .stat-num { font-size: 1.3rem; }

  /* Controls */
  .controls-bar {
    gap: 0.5rem;
    padding: 0.75rem 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .controls-bar::-webkit-scrollbar { display: none; }
  .sort-btn {
    font-size: 0.65rem;
    padding: 0.45rem 0.65rem;
    min-height: 42px;
  }
  .zoom-slider {
    width: 56px;
    height: 8px;
  }
  .zoom-slider::-webkit-slider-thumb {
    width: 18px;
    height: 18px;
  }

  /* Masonry — 始终至少 2 列 */
  .masonry-grid { columns: 2; column-gap: 0.5rem; }
  .image-card { margin-bottom: 0.5rem; }

  /* Card */
  .image-card .card-info { padding: 0.5rem 0.6rem; }
  .image-card .card-title { font-size: 0.75rem; }
  .like-btn {
    padding: 0.35rem 0.6rem;
    min-height: 38px;
    min-width: 50px;
    font-size: 0.68rem;
  }

  /* Lightbox */
  .lightbox-close {
    top: 8px;
    right: 8px;
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
  .lightbox-img-area { padding: 0.5rem; min-height: 160px; overflow: auto; }
  .lightbox-img-area img { max-height: 45vh; }
  .lightbox-info-bar { padding: 0.6rem 0.75rem; }
  .lightbox-title { font-size: 0.82rem; }
  .lightbox-meta { font-size: 0.62rem; gap: 0.5rem; flex-wrap: wrap; }

  /* Footer */
  .site-footer { padding: 1.5rem 0; }
  .site-footer .footer-brand { font-size: 0.9rem; }
  .site-footer .footer-sub {
    font-size: 0.58rem;
    max-width: 240px;
  }
  .footer-doodle { gap: 0.15rem; margin: 0 0.3rem; }

  /* Empty */
  .empty-state .empty-emoji { font-size: 2.5rem; }
  .empty-state .empty-title { font-size: 1.1rem; }

  /* ─── 管理后台 ─── */

  .login-box {
    padding: 1.25rem;
    border-width: 3px;
    box-shadow: 4px 4px 0 #000;
  }
  .login-box h1 { font-size: 1.3rem; }

  .admin-nav .nav-logo { font-size: 0.75rem; }
  .admin-nav .nav-actions { gap: 0.4rem; }
  .admin-nav .nav-actions .btn-brutal { font-size: 0.65rem; padding: 0.35rem 0.55rem; }

  .upload-zone { padding: 1.25rem 0.75rem; }
  .upload-zone.compact { padding: 0.85rem 0.65rem; }
  .upload-zone.compact .upload-emoji { font-size: 1.25rem; }
  .upload-zone.compact .upload-headline { font-size: 0.75rem; }
  .upload-zone.compact .upload-hint { font-size: 0.58rem; }
  .upload-zone .upload-emoji { font-size: 2rem; }
  .upload-zone .upload-headline { font-size: 0.82rem; }
  .upload-zone .upload-hint { font-size: 0.6rem; }

  /* Admin sort bar mobile */
  .admin-sort-bar {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .admin-sort-bar::-webkit-scrollbar { display: none; }
  .admin-sort-btn {
    font-size: 0.6rem;
    padding: 0.3rem 0.5rem;
    min-height: 36px;
  }
  .admin-sort-label { font-size: 0.58rem; }

  /* Table — 横向滚动 */
  .admin-table-wrap {
    -webkit-overflow-scrolling: touch;
    margin: 0 -1rem;
    border-left: none;
    border-right: none;
  }
  .admin-table { font-size: 0.65rem; }
  .admin-table thead th { font-size: 0.55rem; padding: 0.5rem 0.4rem; }
  .admin-table tbody td { padding: 0.4rem 0.4rem; }
  .admin-table .td-input { font-size: 0.65rem; }

  /* Settings panels */
  .cos-settings-toggle {
    font-size: 0.72rem;
    padding: 0.65rem 0.8rem;
  }
  .cos-settings-body,
  .site-settings-body {
    padding: 0.75rem;
  }

  /* Sticker items — 纵向堆叠 */
  .sticker-item {
    flex-direction: column;
    align-items: stretch;
    padding: 0.4rem 0.5rem;
  }
  .sticker-item .sticker-input { min-width: unset; }
  .sticker-item .sticker-preview {
    min-width: unset;
    justify-content: center;
    font-size: 0.55rem;
  }
  .sticker-item .sticker-color-select { width: 100% !important; }
  .sticker-item .btn-brutal { align-self: flex-end; }

  /* Toast */
  .toast-container {
    left: 0.5rem;
    right: 0.5rem;
    top: 0.5rem;
  }
  .toast {
    max-width: 100%;
    font-size: 0.7rem;
    padding: 0.75rem 1rem;
  }
}

/* ─── 触控设备 — 禁用 hover 效果、增大交互区域 ─── */
@media (hover: none) and (pointer: coarse) {
  /* 禁用卡片 hover 偏移（触控无 hover） */
  .image-card:hover {
    transform: none;
    box-shadow: var(--shadow-md);
  }
  .image-card:hover .img-wrap img {
    transform: none;
  }

  /* 禁用 sticker hover 旋转 */
  .sticker:hover {
    transform: none !important;
    box-shadow: var(--shadow-sm);
  }

  /* 按钮 hover 偏移也禁用 */
  .btn-brutal:hover {
    transform: none;
    box-shadow: var(--shadow-md);
  }
  .btn-brutal.sm:hover { box-shadow: var(--shadow-sm); }
  .btn-brutal.lg:hover { box-shadow: var(--shadow-lg); }

  /* Sort button hover */
  .sort-btn:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
  }

  /* Admin sort button hover */
  .admin-sort-btn:hover {
    transform: none;
    box-shadow: 2px 2px 0 #000;
  }

  /* Zoom slider thumb hover */
  .zoom-slider::-webkit-slider-thumb:hover {
    background: var(--ink);
  }

  /* Lightbox close */
  .lightbox-close:hover { transform: none; }

  /* 确保所有交互元素最小触控尺寸 ≥ 44px */
  .sort-btn,
  .btn-brutal,
  .like-btn,
  .admin-sort-btn { min-height: 44px; }

  /* 输入框触控友好 — 防止 iOS 自动缩放 */
  .input-brutal,
  .sticker-input,
  .admin-table .td-input,
  .td-likes { font-size: 16px !important; }
}

/* ─── 消除 300ms 点击延迟（现代浏览器默认已处理，显式声明） ─── */
html {
  touch-action: manipulation;
}

/* ═══════════════════════════════════════════
   PRINT
   ═══════════════════════════════════════════ */
@media print {
  .hero-stickers, .sort-bar, .like-btn, .site-footer,
  .lightbox-overlay, .toast-container, .admin-nav { display: none !important; }
  body { background: #fff; }
  .image-card { break-inside: avoid; box-shadow: none; border: 1px solid #000; }
}

/* ═══════════════════ 标签筛选栏 ═══════════════════ */
.tag-filter-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.tag-filter-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--ink);
  background: var(--yellow);
  padding: 0.22rem 0.65rem;
  border: 3px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
  align-self: center;
}

.tag-filter-list {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  align-items: center;
}

.tag-filter-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.7rem;
  border: 3px solid var(--ink);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: 3px 3px 0 var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.tag-filter-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ink);
}

.tag-filter-btn.active {
  background: var(--yellow);
  color: var(--ink);
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ink);
}

/* ═══════════════════ 卡片标签 ═══════════════════ */
.card-tags {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
  flex: 1;
  margin-right: 0.5rem;
}

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border: 2px solid var(--ink);
  background: var(--yellow);
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

/* ═══════════════════ 卡片分类 + 标签容器 ═══════════════════ */
.card-meta {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
  margin-bottom: 0.15rem;
}

.card-category {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border: 2px solid var(--ink);
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.12);
  flex-shrink: 0;
}

/* 分类颜色变体 */
.card-cat-pink    { background: var(--pink); }
.card-cat-yellow  { background: var(--yellow); }
.card-cat-green   { background: var(--green); }
.card-cat-blue    { background: var(--blue); }
.card-cat-purple  { background: var(--purple); }
.card-cat-orange  { background: var(--orange); }
.card-cat-red     { background: var(--red); }
.card-cat-teal    { background: var(--teal); }
.card-cat-gray    { background: var(--gray-light, #e5e5e5); }
.card-cat-default { background: var(--yellow); }

/* 后台标签输入 */
.td-tags {
  font-size: 0.72rem;
  font-family: var(--font-mono);
}

/* ═══════════════════ 后台 UI 美化补充 ═══════════════════ */

/* 仪表盘卡片 */
.admin-dashboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.dash-card {
  border: 4px solid var(--ink);
  background: #fff;
  padding: 1.25rem 1rem;
  box-shadow: 6px 6px 0 var(--ink);
  transition: transform 0.2s, box-shadow 0.2s;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.dash-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--ink);
}

.dash-card.pink   { background: var(--pink); }
.dash-card.yellow { background: var(--yellow); }
.dash-card.green  { background: var(--green); }
.dash-card.purple { background: var(--purple); color: #fff; }
.dash-card.blue   { background: var(--blue); color: #fff; }
.dash-card.orange { background: var(--orange); }

.dash-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  opacity: 0.7;
}

.dash-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 0.3rem;
}

.dash-lbl {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.8;
}

/* 区块卡片 */
.section-card {
  border: 4px solid var(--ink);
  background: #fff;
  box-shadow: 6px 6px 0 var(--ink);
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
}

.section-hint {
  font-size: 0.68rem;
  font-weight: 400;
  opacity: 0.7;
}

/* 上传额外区域 */
.upload-extra {
  padding: 0.75rem 1rem;
  border-top: 3px solid var(--ink);
  background: #f9f9f9;
}

/* 可折叠面板 */
.admin-panel {
  border: 4px solid var(--ink);
  background: #fff;
  box-shadow: 6px 6px 0 var(--ink);
  margin-bottom: 1rem;
  overflow: hidden;
}

.panel-toggle {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: #fff;
  border: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink);
  transition: background 0.15s;

.panel-toggle:hover {
  background: var(--yellow);
}

.panel-toggle .toggle-arrow {
  transition: transform 0.2s;
}

.panel-body {
  padding: 1rem;
  border-top: 3px solid var(--ink);
}

.panel-body.hidden {
  display: none;
}

/* 表单行 */
.form-row {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.form-row .form-field {
  flex: 1;
  min-width: 200px;
}

/* 面板操作区 */
.panel-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

/* 分类管理 */
.cat-add-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.cat-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cat-item {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.cat-item-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border: 2px solid var(--ink);
  white-space: nowrap;
}

.cat-item-tag.pink { background: var(--pink); }
.cat-item-tag.yellow { background: var(--yellow); }
.cat-item-tag.green { background: var(--green); }
.cat-item-tag.blue { background: var(--blue); color: #fff; }
.cat-item-tag.purple { background: var(--purple); color: #fff; }
.cat-item-tag.orange { background: var(--orange); }
.cat-item-tag.teal { background: var(--teal); }

.cat-empty {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-muted);
  padding: 1rem 0;
  text-align: center;
}

.cat-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border: 2px solid var(--ink);
  white-space: nowrap;
  display: inline-block;
}

/* 浏览量管理 */
.views-manager {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.views-stats {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.views-stat-card {
  flex: 1;
  min-width: 150px;
  border: 3px solid var(--ink);
  padding: 1rem;
  text-align: center;
  background: #f9f9f9;
}

.views-stat-num {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 900;
  line-height: 1;
}

.views-stat-lbl {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-top: 0.3rem;
  opacity: 0.7;
}

/* 状态文本 */
.cos-status {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.cos-status.ok { color: var(--green); }
.cos-status.err { color: var(--pink); }

/* 表格输入框 */
.td-input {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  border: 2px solid var(--ink);
  padding: 0.25rem 0.5rem;
  background: #fff;
  width: 100%;
  max-width: 180px;
}

.td-input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 2px 2px 0 var(--blue);
}

.td-thumb {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border: 2px solid var(--ink);
}

/* 标签管理器 */
.sticker-manager {
  border: 3px solid var(--ink);
  padding: 0.75rem;
  margin: 0.75rem 0;
  background: #f9f9f9;
}

.sticker-manager-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.sticker-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.sticker-add-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.4rem 0.8rem;
  border: 3px solid var(--ink);
  background: var(--green);
  color: var(--ink);
  cursor: pointer;
  box-shadow: 3px 3px 0 var(--ink);
  transition: transform 0.15s;
  margin-top: 0.5rem;
}

.sticker-add-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ink);
}

/* 颜色选择器 */
.sticker-color-select {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border: 3px solid var(--ink);
  padding: 0.3rem 0.5rem;
  background: #fff;
  cursor: pointer;
}

/* 响应式 */
@media (max-width: 768px) {
  .admin-dashboard {
    grid-template-columns: repeat(2, 1fr);
  }
  .dash-num {
    font-size: 1.5rem;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }
  .form-row {
    flex-direction: column;
  }
  .td-input {
    max-width: 120px;
  }
}