@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f4f7fb;
  --text-main: #1e293b;
  --text-muted: #475569;
  --text-hint: #94a3b8;
  --card-bg: #ffffff;
  --card-border: #e2e8f0;
  --input-bg: #ffffff;
  --chip-bg: #ffffff;
  --chip-border: #e2e8f0;
  --chip-hover-bg: #f1f5f9;
  --block-hdr-bg: #fafafa;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.02);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --overlay: rgba(0,0,0,0.88);
  --primary: #3b82f6;
  --primary-light: #e0f2fe;
}

body.dark {
  --bg: #0f172a;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-hint: #64748b;
  --card-bg: #1e293b;
  --card-border: #334155;
  --input-bg: #1e293b;
  --chip-bg: #1e293b;
  --chip-border: #334155;
  --chip-hover-bg: #273548;
  --block-hdr-bg: #172033;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.3);
  --primary: #60a5fa;
  --primary-light: #1e3a8a;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(100,116,139,0.2); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: rgba(100,116,139,0.4); }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text-main);
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
  overflow-x: hidden;
}

.container {
  position: relative;
  width: min(1680px, calc(100% - 180px));
  margin: 0 auto;
}


@media (max-width: 1440px) {
  .container {
    width: min(1500px, calc(100% - 96px));
  }
}

@media (max-width: 900px) {
  .container {
    width: calc(100% - 28px);
  }
}

/* =============================================
   顶部导航
   ============================================= */
.new-site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 2;
  padding: 12px 0 14px;
}

/* 左侧：Logo 与 菜单 */
.nh-left { display: flex; align-items: center; gap: 36px; }
.nh-brand-wrap { display: flex; align-items: center; gap: 10px; }
.nh-logo {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.nh-logo svg { width: 18px; height: 18px; }
.nh-brand { font-size: 18px; font-weight: 600; color: var(--primary); letter-spacing: 1px; }

.nh-nav { display: flex; align-items: center; gap: 24px; }
.nh-link {
  color: var(--text-muted); font-size: 15px; font-weight: 500;
  text-decoration: none; position: relative; transition: color 0.2s;
}
.nh-link:hover { color: var(--primary); }
.nh-link.active { color: var(--primary); font-weight: 600; }
.nh-link.active::after {
  content: ''; position: absolute; bottom: -6px; left: 50%; transform: translateX(-50%);
  width: 18px; height: 3px; background: var(--primary); border-radius: 99px;
}

/* 右侧：搜索、按钮、主题 */
.nh-right { display: flex; align-items: center; gap: 16px; }

/* 头部搜索框 */
.header-search {
  display: flex; align-items: center;
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: 99px; padding: 0 16px; height: 38px; width: 260px; gap: 8px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.header-search:focus-within {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}
.icon-search { width: 14px; height: 14px; color: var(--text-hint); flex-shrink: 0; }
#searchInput {
  border: none; outline: none; background: transparent;
  color: var(--text-main); width: 100%; font-size: 13px; font-weight: 500;
}
#searchInput::placeholder { color: var(--text-hint); }

/* 登录与注册按钮 */
.auth-group { display: flex; align-items: center; gap: 10px; margin-left: 4px; margin-right: 4px; }
.nh-btn-login {
  display: flex; align-items: center; gap: 6px;
  background: var(--primary); color: white !important;
  padding: 0 18px; height: 34px; border-radius: 99px;
  text-decoration: none; font-size: 13px; font-weight: 600; transition: transform 0.2s;
}
.nh-btn-login svg { width: 14px; height: 14px; }
.nh-btn-login:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(59,130,246,0.3); }
.nh-btn-register {
  color: var(--primary); font-size: 13px; font-weight: 600; text-decoration: none; padding: 0 4px;
}

/* 主题切换下拉菜单 */
.theme-dropdown-container { position: relative; }
.nh-btn-circle {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--card-border); background: var(--card-bg);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); cursor: pointer; transition: 0.2s; outline: none;
}
.nh-btn-circle:hover { background: var(--chip-hover-bg); color: var(--primary); border-color: var(--primary); }
.nh-btn-circle svg { width: 16px; height: 16px; }

.theme-menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: 12px; padding: 6px; min-width: 140px;
  box-shadow: var(--shadow-md); opacity: 0; visibility: hidden;
  transform: translateY(-6px); transition: 0.2s cubic-bezier(0.25,0.8,0.25,1); z-index: 200;
}
.theme-dropdown-container.open .theme-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.theme-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-radius: 8px; font-size: 13px; font-weight: 500;
  color: var(--text-muted); cursor: pointer; transition: 0.15s;
}
.theme-item:hover { background: var(--chip-hover-bg); color: var(--text-main); }
.theme-item.active { background: var(--chip-hover-bg); color: var(--text-main); font-weight: 600; }
.check-icon { width: 14px; height: 14px; stroke: currentColor; opacity: 0; transition: 0.2s; }
.theme-item.active .check-icon { opacity: 1; }

/* 分类区域中的排序下拉菜单 */
.custom-dropdown { position: relative; }
.dropdown-trigger {
  display: flex; align-items: center; gap: 6px;
  background: transparent; border: none; height: 24px;
  cursor: pointer; font-size: 12px; font-weight: 500; color: var(--text-muted); transition: 0.2s;
}
.dropdown-trigger:hover { color: var(--primary); }
.sort-icon { width: 13px; height: 13px; }
.chevron { width: 12px; height: 12px; transition: transform 0.25s; }
.custom-dropdown.open .chevron { transform: rotate(180deg); color: var(--primary); }
.dropdown-menu {
  position: absolute; top: calc(100% + 6px); right: 0;
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: 12px; padding: 6px; min-width: 120px; box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: all 0.2s cubic-bezier(0.25,0.8,0.25,1); z-index: 200;
}
.custom-dropdown.open .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-item {
  padding: 8px 14px; border-radius: 8px; font-size: 12px; font-weight: 500; color: var(--text-muted);
  cursor: pointer; transition: 0.15s;
}
.dropdown-item:hover { background: var(--chip-hover-bg); color: var(--text-main); }
.dropdown-item.active { background: #eff6ff; color: var(--primary); }
body.dark .dropdown-item.active { background: rgba(37,99,235,0.2); color: #60a5fa; }

/* =============================================
   CATEGORY BLOCKS
   ============================================= */
.categories-container { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px;}

.cat-block {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
}

.cat-block-hdr {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 18px;
  background: var(--block-hdr-bg);
  border-bottom: 1px solid var(--card-border);
  border-radius: 13px 13px 0 0;
  position: relative; /* pull-switch 绝对定位的基准 */
  overflow: visible;  /* 允许开关从底部伸出 */
}
.cat-block-label {
  font-size: 11px; font-weight: 700; color: var(--text-hint);
  letter-spacing: 0.6px; text-transform: uppercase;
}

.cat-chips-wrap {
  display: flex; flex-wrap: wrap; gap: 8px; padding: 12px 16px;
}

/* 分类标签按钮 */
.category-chip {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--chip-bg);
  border: 1px solid var(--chip-border);
  border-radius: 10px;
  padding: 6px 12px;
  font-size: 13px; font-weight: 500; color: var(--text-muted);
  cursor: pointer;
  transition: all 0.18s;
}
.category-chip:hover {
  background: var(--chip-hover-bg);
  border-color: #cbd5e1;
  color: var(--text-main);
}
.chip-icon { width: 15px; height: 15px; fill: currentColor; flex-shrink: 0; }
.chip-count {
  background: rgba(0,0,0,0.05);
  color: var(--text-muted);
  font-size: 11px; padding: 2px 7px; border-radius: 6px; font-weight: 600;
}
body.dark .chip-count { background: rgba(255,255,255,0.08); }

.category-chip.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff !important;
}
.category-chip.active .chip-icon { color: #fff !important; }
.category-chip.active .chip-count { background: rgba(255,255,255,0.22); color: #fff; }

/* 我的收藏标签定制粉色 */
.category-chip.fav-chip.active {
  background: #fff0f3 !important; border-color: #fca5a5 !important; color: #e11d48 !important;
}
.category-chip.fav-chip.active .chip-icon { color: #f43f5e !important; }
.category-chip.fav-chip.active .chip-count { background: rgba(244,63,94,0.12); color: #e11d48; }
body.dark .category-chip.fav-chip.active {
  background: rgba(244,63,94,0.12) !important; border-color: rgba(244,63,94,0.3) !important; color: #f43f5e !important;
}
body.dark .category-chip.fav-chip.active .chip-count { color: #fca5a5; }

/* 返回按钮 */
.btn-back {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--chip-bg); border: 1px solid var(--chip-border);
  color: var(--text-muted); border-radius: 7px;
  padding: 4px 10px; font-size: 12px; cursor: pointer; transition: 0.15s;
  font-family: inherit;
}
.btn-back:hover { background: var(--chip-hover-bg); color: var(--text-main); }
.btn-back svg { width: 12px; height: 12px; }

/* =============================================
   图库（多列瀑布流）
   ============================================= */
.gallery {
  column-count: 4; /* 默认大屏显示 4 列 */
  column-gap: 16px; /* 列与列之间的间距 */
  padding-bottom: 20px;
  width: 100%;
}

.card {
  break-inside: avoid; /* 核心：防止卡片被从中间截断分到两列 */
  margin-bottom: 16px; /* 替代原本 grid 的行间距 */
  border-radius: 14px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  background: var(--chip-bg);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s cubic-bezier(0.25,0.8,0.25,1), box-shadow 0.25s;
  min-height: 120px; /* 给一个最小骨架高度，防止加载图片前卡片完全塌陷 */
  transform: translateZ(0); /* 开启硬件加速，让动画更流畅 */
}

.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
body.dark .card { border-color: #334155; }
.card.is-locked-card { cursor: pointer; }
.card.is-locked-card:hover { transform: translateY(-2px); }

.card img {
  width: 100%; 
  height: auto; /* 核心：高度自适应，按原图比例展示 */
  display: block; 
  opacity: 0; 
  transition: opacity 0.35s ease;
}
.card img.loaded { opacity: 1; }
.card.is-locked-card img {
  filter: blur(10px) saturate(0.78);
  transform: scale(1.04);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(2, 6, 23, 0.78) 0%, rgba(2, 6, 23, 0.38) 34%, rgba(2, 6, 23, 0) 64%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s;
}
.card:hover .card-overlay { opacity: 1; }
.card.is-locked-card .card-overlay {
  height: 100%;
  background: linear-gradient(to top, rgba(12,18,30,0.84) 0%, rgba(12,18,30,0.36) 100%);
  opacity: 1;
}

.card-meta-panel {
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 10px;
  z-index: 2;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(2, 6, 23, 0.56);
  backdrop-filter: blur(9px);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.22s ease, transform 0.22s ease;
  pointer-events: none;
}

.card:hover .card-meta-panel {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.card-meta-content {
  position: relative;
}

.card-meta-top {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.card-stat-item {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  color: #f8fafc;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  background: transparent;
  border: none;
  padding: 0;
  margin: 0;
}

.card-stat-item svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

.card-stat-download {
  justify-content: flex-start;
  justify-self: start;
  cursor: pointer;
}

.card-stat-download svg {
  fill: currentColor;
}

.card-stat-view {
  justify-content: center;
  justify-self: center;
}

.card-stat-view svg {
  stroke: currentColor;
  fill: none;
}

.card-stat-fav {
  justify-content: flex-end;
  justify-self: end;
  cursor: pointer;
}

.card-stat-fav svg {
  fill: rgba(248, 250, 252, 0.35);
  transition: fill 0.18s ease;
}

.card-stat-fav.active svg,
.card-stat-fav:hover svg {
  fill: #f43f5e;
}

.card-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 10px;
}

.card-meta-grid + .card-meta-grid {
  margin-top: 6px;
}

.card-meta-grid-tags {
  grid-template-columns: 1fr;
}

.card-meta-item {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 6px;
}

.meta-label {
  color: rgba(226, 232, 240, 0.72);
  font-size: 11px;
  line-height: 1;
  white-space: nowrap;
}

.meta-value {
  color: #ffffff;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.15;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-meta-item-wide .meta-value-tags {
  white-space: nowrap;
}

.locked-card-badge {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 4;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(10px);
  color: #ffffff;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
}

.locked-card-badge-icon {
  font-size: 13px;
  line-height: 1;
}

@media (max-width: 768px) {
  .card-meta-panel {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
}

/* =============================================
   MISC & LIGHTBOX
   ============================================= */
.empty-state { text-align: center; color: var(--text-muted); padding: 60px 0; font-size: 14px; }
.load-status { text-align: center; color: var(--text-muted); padding: 20px 0 40px; font-size: 13px; }
.pill-status span {
  background: var(--card-bg); border: 1px solid var(--card-border);
  color: var(--text-main); padding: 7px 20px; border-radius: 99px;
  display: inline-block; font-weight: 500; font-size: 13px;
}
.site-footer { text-align: center; padding: 20px 0 40px; color: var(--text-hint); font-size: 12px; }
.hidden { display: none !important; }
.scroll-sentinel { height: 1px; }

.back-to-top {
  position: fixed; right: 20px; bottom: 40px;
  width: 38px; height: 38px; border-radius: 50%;
  border: none; background: var(--primary); color: white;
  font-size: 18px; cursor: pointer; box-shadow: 0 4px 14px rgba(37,99,235,0.4);
  opacity: 0; transform: translateY(16px); transition: opacity 0.3s, transform 0.3s; z-index: 99;
}
.back-to-top.show { opacity: 1; transform: translateY(0); }

/* Lightbox 基础样式 */
.lightbox { position: fixed; inset: 0; background: var(--overlay); backdrop-filter: blur(20px); display: flex; flex-direction: column; align-items: center; justify-content: center; z-index: 1000; opacity: 1; transition: opacity 0.3s; }
.lightbox.hidden { opacity: 0; pointer-events: none; }
.lightbox-img-wrapper { display: flex; align-items: center; justify-content: center; width: 100%; height: 100vh; padding: 60px 100px; }
#lightboxImg { max-width: 100%; max-height: 100%; object-fit: contain; border-radius: 10px; box-shadow: 0 30px 80px rgba(0,0,0,0.6); transition: transform 0.3s cubic-bezier(0.16,1,0.3,1); }
.lb-toolbar { position: absolute; top: 28px; left: 50%; transform: translateX(-50%); background: rgba(15,23,42,0.7); backdrop-filter: blur(16px); border: 1px solid rgba(255,255,255,0.12); border-radius: 99px; display: flex; align-items: center; padding: 5px 8px; gap: 4px; z-index: 1001; }
.lb-divider { width: 1px; height: 18px; background: rgba(255,255,255,0.15); margin: 0 4px; }
.lb-btn { background: transparent; border: none; color: #94a3b8; width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.2s; text-decoration: none; }
.lb-btn svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.lb-btn:hover { background: rgba(255,255,255,0.12); color: #fff; }
.lb-fav-btn svg { fill: none; stroke: currentColor; stroke-width: 2; }
.lb-fav-btn.active svg { fill: #f43f5e; stroke: #f43f5e; }
.lb-fav-btn.active { color: #f43f5e; }
.lightbox-close { position: absolute; top: 28px; right: 28px; background: rgba(255,255,255,0.08); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.15); color: white; width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: 0.25s; z-index: 1001; }
.lightbox-close svg { width: 20px; height: 20px; }
.lightbox-close:hover { background: rgba(239,68,68,0.75); border-color: #ef4444; transform: rotate(90deg); }
.lb-nav { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,0.06); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.1); color: white; width: 54px; height: 54px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.25s; z-index: 1001; }
.lb-nav svg { width: 28px; height: 28px; }
.lb-nav:hover { background: rgba(255,255,255,0.18); transform: translateY(-50%) scale(1.08); }
.lb-prev { left: 28px; }
.lb-next { right: 28px; }
.lightbox-footer { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 6px; z-index: 1001; text-align: center; pointer-events: none; }
.lightbox-caption { color: rgba(255,255,255,0.9); font-size: 14px; font-weight: 600; text-shadow: 0 1px 3px rgba(0,0,0,0.5); }
.lightbox-counter { color: #64748b; font-size: 12px; font-variant-numeric: tabular-nums; }


/* =================================================================
   🌟 动态拉灯开关与整体折叠动画
   ================================================================= */
/* 1. 核心包裹层的 Grid 动画方案 (目前最丝滑的高度收缩方案) */
.collapsible-wrapper {
  display: grid;
  grid-template-rows: 1fr;
  transition: grid-template-rows 0.4s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.3s ease, margin-bottom 0.4s ease;
  opacity: 1;
  margin-bottom: 0;
}

.collapsible-wrapper.collapsed {
  grid-template-rows: 0fr;
  opacity: 0;
  pointer-events: none;
margin-bottom: 0; /* 改为 0，不再拉拽图库区域 */
}

.collapsible-inner {
  min-height: 0; 
  overflow: visible; /* 🌟 修复：改为 visible，允许下拉菜单完整显示 */
}

/* 🌟 修复：只有在收起状态下才进行裁剪，防止动画穿帮 */
.collapsible-wrapper.collapsed .collapsible-inner {
  overflow: hidden; 
}

/* 2. "拉灯"开关定位 */
.pull-switch {
  position: absolute;
  top: 100%;           /* 紧贴 .cat-block-hdr 底部伸出 */
  right: 100px;        /* 与"最新优先"下拉菜单对齐 */
  z-index: 1001;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 15px 15px 15px;
  transition: top 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

/* 3. 动态拉绳 */
.pull-string {
  width: 2px;
  height: 12px;
  background: #cbd5e1;
  border-radius: 2px;
  transition: height 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* 4. 蓝底白箭头的圆圈拉手 */
.pull-knob {
  width: 34px;
  height: 34px;
  background: #3b82f6;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 12px rgba(59,130,246,0.3);
  /* 带有回弹贝塞尔曲线的动画，模拟真实的物理手感 */
  transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55), background 0.2s;
  margin-top: -1px; 
}

.pull-knob svg {
  width: 18px;
  height: 18px;
  margin-top: 2px; /* 视觉微调居中 */
}

/* 🌟 悬浮和按下时的物理拉动交互 */
.pull-switch:hover .pull-string { height: 18px; }
.pull-switch:hover .pull-knob { background: #2563eb; }

.pull-switch:active .pull-string { height: 28px !important; } /* 按下时绳子被拉长 */
.pull-switch:active .pull-knob { transform: translateY(8px) scale(0.95); } /* 按下时圆圈被用力拉拽 */

/* 🌟 收起状态下，圆圈变灰且箭头朝下 */
.pull-switch.collapsed .pull-knob {
  transform: rotate(180deg);
  background: #94a3b8;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.pull-switch.collapsed:hover .pull-knob { background: #64748b; }
.pull-switch.collapsed:active .pull-knob {
  /* 旋转180度后，拉拽的方向在 Y 轴上需要反过来写 (-8px) */
  transform: rotate(180deg) translateY(-8px) scale(0.95);
}

/* 暗黑模式适配 */
body.dark .pull-string { background: #475569; }
body.dark .pull-switch.collapsed .pull-knob { background: #334155; color: #94a3b8; }

/* =================================================================
   🌟 处理收起状态下的留白与重定位
   ================================================================= */

/* A. 当 body 被标记为“已收起”时，给顶部加上合理的留白！ */
body.header-collapsed {
  padding-top: 25px; /* 给整个网页加上 25 像素的顶部留白 */
  transition: padding-top 0.4s ease; /* 让留白的出现也有平滑动画 */
}

/* B. 同时，把“拉灯”的圆圈开关也往下移动，使它处于留白的视觉中心 */
body.header-collapsed #pullSwitch {
  top: 0px; /* 向上 CHEVRON 的圆圈不再是 top: 0，而是 top: 12px */
}

/* 修改 hover 和 active 状态的 CSS 选择器，使用 body 状态类名 */
body.header-collapsed #pullSwitch .pull-knob {
  transform: rotate(180deg);
  background: #94a3b8;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* 当收起状态下，按下拉手时，拉拽的方向需要特殊处理 */
body.header-collapsed #pullSwitch:active .pull-knob {
  /* 在旋转 180 度的基础上进行 Y 轴拉拽和缩放 */
  transform: rotate(180deg) translateY(-8px) scale(0.95);
}

/* 暗黑模式下收起状态的拉手样式 */
body.dark.header-collapsed #pullSwitch .pull-knob { 
  background: #334155; 
  color: #94a3b8; 
}

/* =============================================
   RESPONSIVE (响应式瀑布流列数)
   ============================================= */
@media (max-width: 1400px) {
  .gallery { column-count: 3; }
}
@media (max-width: 1024px) {
  .new-site-header { flex-wrap: wrap; gap: 20px; }
  .nh-nav { display: none; }
  .gallery { column-count: 2; }
}
@media (max-width: 640px) {
  .container { width: calc(100% - 24px); }
  .header-search { display: none; }
  /* 手机端保持双列瀑布流，间距缩小 */
  .gallery { column-count: 2; column-gap: 12px; }
  .card { margin-bottom: 12px; }
  .lb-nav { display: none; }

  /* ===== 手机端拉灯开关修复 ===== */
  /* 改为静态布局，嵌入分类栏头部右侧，不再用绝对定位 */
  .pull-switch {
    position: static !important;
    top: auto !important;
    right: auto !important;
    flex-direction: row !important;  /* 横排：绳子 → 圆圈 */
    align-items: center !important;
    padding: 0 !important;
    gap: 4px;
  }

  /* 手机端隐藏竖向拉绳，横排时不需要 */
  .pull-switch .pull-string {
    display: none !important;
  }

  /* 圆圈缩小一点，适配头部行高 */
  .pull-switch .pull-knob {
    width: 28px !important;
    height: 28px !important;
    margin-top: 0 !important;
  }

  .pull-switch .pull-knob svg {
    width: 14px !important;
    height: 14px !important;
    margin-top: 0 !important;
  }

  /* 让分类栏头部可以容纳内联的开关 */
  .cat-block-hdr {
    position: relative;
  }

  /* 收起时body留白去掉（手机端不需要）*/
  body.header-collapsed {
    padding-top: 0 !important;
  }
}

/* cat-block-hdr 已内联 pullSwitch，旧定位规则已移除 */

/* =================================================================
   自定义密码弹窗
   ================================================================= */
.pwd-modal-overlay {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.pwd-modal-overlay.show {
  opacity: 1; visibility: visible;
}
.pwd-modal {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 1);
  border-radius: 22px;
  padding: 36px 32px 28px;
  width: min(360px, calc(100vw - 40px));
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  text-align: center;
  transform: translateY(16px) scale(0.97);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.pwd-modal-overlay.show .pwd-modal {
  transform: translateY(0) scale(1);
}
body.dark .pwd-modal {
  background: rgba(30, 41, 59, 0.95);
  border-color: rgba(51, 65, 85, 0.8);
}
.pwd-modal-icon {
  width: 56px; height: 56px; border-radius: 16px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px;
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.35);
}
.pwd-modal-icon svg { width: 26px; height: 26px; fill: white; }
.pwd-modal-title {
  font-size: 17px; font-weight: 700; color: var(--text-main);
  margin-bottom: 6px;
}
.pwd-modal-sub {
  font-size: 13px; color: var(--text-muted);
  margin-bottom: 22px; line-height: 1.5;
}
.pwd-modal-input-wrap {
  position: relative; margin-bottom: 14px;
}
.pwd-modal-input {
  width: 100%; padding: 13px 44px 13px 16px;
  background: var(--input-bg);
  border: 1.5px solid var(--card-border);
  border-radius: 12px;
  font-size: 15px; color: var(--text-main);
  outline: none; transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
}
.pwd-modal-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}
.pwd-modal-eye {
  position: absolute; right: 13px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; padding: 4px;
  color: var(--text-hint); transition: color 0.2s;
}
.pwd-modal-eye:hover { color: var(--text-muted); }
.pwd-modal-eye svg { width: 16px; height: 16px; display: block; }
.pwd-modal-err {
  font-size: 12px; color: #ef4444; font-weight: 500;
  min-height: 18px; margin-bottom: 12px;
  text-align: left; padding-left: 4px;
}
.pwd-modal-actions { display: flex; gap: 10px; }
.pwd-modal-cancel {
  flex: 1; padding: 12px;
  background: var(--chip-bg); border: 1px solid var(--card-border);
  border-radius: 12px; font-size: 14px; font-weight: 600;
  color: var(--text-muted); cursor: pointer; transition: 0.2s;
  font-family: inherit;
}
.pwd-modal-cancel:hover { background: var(--chip-hover-bg); color: var(--text-main); }
.pwd-modal-confirm {
  flex: 2; padding: 12px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none; border-radius: 12px;
  font-size: 14px; font-weight: 700; color: white;
  cursor: pointer; transition: 0.2s;
  box-shadow: 0 4px 14px rgba(102, 126, 234, 0.35);
  font-family: inherit;
}
.pwd-modal-confirm:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(102, 126, 234, 0.45); }
.pwd-modal-confirm:active { transform: translateY(0); }
.pwd-modal-confirm:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* =================================================================
   骨架屏
   ================================================================= */
@keyframes shimmer {
  0%   { background-position: -600px 0; }
  100% { background-position:  600px 0; }
}

.skeleton-card {
  break-inside: avoid;
  margin-bottom: 16px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
}

.skeleton-img {
  width: 100%;
  background: linear-gradient(
    90deg,
    var(--card-border) 25%,
    var(--chip-hover-bg) 50%,
    var(--card-border) 75%
  );
  background-size: 600px 100%;
  animation: shimmer 1.4s infinite linear;
}

/* 手机端骨架屏间距收紧 */
@media (max-width: 640px) {
  .skeleton-card { margin-bottom: 12px; }
}

/* =================================================================
   Lightbox 手势提示（仅移动端首次打开时短暂显示）
   ================================================================= */
.lb-gesture-hint {
  position: absolute;
  bottom: 80px; left: 50%; transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 99px;
  padding: 8px 18px;
  display: flex; align-items: center; gap: 14px;
  z-index: 1002;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  white-space: nowrap;
}
.lb-gesture-hint.show { opacity: 1; }
.lb-gesture-item {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: rgba(255,255,255,0.8);
}
.lb-gesture-item svg { width: 14px; height: 14px; flex-shrink: 0; opacity: 0.7; }

/* =================================================================
   🌟 私密分类"重新锁定"小按钮
   ================================================================= */
.chip-relock-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 18px; height: 18px; border-radius: 5px;
  background: rgba(0,0,0,0.06);
  border: none; cursor: pointer; padding: 0;
  margin-left: 2px; flex-shrink: 0;
  color: var(--text-hint);
  transition: background 0.18s, color 0.18s, transform 0.18s;
  vertical-align: middle;
  line-height: 1;
}
.chip-relock-btn svg {
  width: 11px; height: 11px; display: block;
  fill: currentColor; flex-shrink: 0;
}
.chip-relock-btn:hover {
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
  transform: scale(1.15);
}
.category-chip.active .chip-relock-btn {
  background: rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.75);
}
.category-chip.active .chip-relock-btn:hover {
  background: rgba(255,255,255,0.32);
  color: #fff;
}
body.dark .chip-relock-btn {
  background: rgba(255,255,255,0.07);
}

/* =================================================================
   Filter Panel (图二同款分类筛选区)
   ================================================================= */
.categories-container {
  margin-bottom: 22px;
}

.filter-panel {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.filter-panel-header {
  height: 58px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #f2f6fb;
  border-bottom: 1px solid #dde6f1;
}
body.dark .filter-panel-header {
  background: #16253a;
  border-bottom-color: #27384d;
}

.filter-panel-title {
  font-size: 18px;
  color: #1f2937;
  font-weight: 700;
}
body.dark .filter-panel-title {
  color: #e2e8f0;
}

.filter-panel-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.panel-action-btn {
  border: none;
  background: transparent;
  color: #64748b;
  font-size: 15px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}
.panel-action-btn:hover {
  color: #2563eb;
}

.panel-action-icon {
  width: 14px;
  height: 14px;
}

.filter-panel-body {
  padding: 4px 24px 14px;
}

.filter-panel.collapsed .filter-panel-body {
  display: none;
}

.filter-panel.collapsed #toggleFilterPanelBtn .panel-action-icon {
  transform: rotate(180deg);
}

.filter-row {
  padding: 16px 0;
  border-bottom: 1px solid #dde6f1;
}
body.dark .filter-row {
  border-bottom-color: #27384d;
}

.filter-row.filter-row-last {
  border-bottom: none;
}

#subCategoryWrapper {
  margin-top: 0;
  padding: 12px 0 14px;
  border-bottom: 1px solid #e6edf5;
}

.sub-category-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

#currentCategoryLabel {
  font-size: 13px;
  font-weight: 700;
  color: #4b5d77;
}

#btnBackCategory {
  height: 31px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid #d6deea;
  background: #fff;
  color: #5a6472;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

#btnBackCategory:hover {
  border-color: #bfd2e9;
  color: #2563eb;
  transform: translateY(-1px);
}

#subCategoryBar {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 12px;
}

body.dark #subCategoryWrapper {
  border-bottom-color: #27384d;
}

body.dark #currentCategoryLabel {
  color: #d7e3f4;
}

body.dark #btnBackCategory {
  background: #102034;
  border-color: #334155;
  color: #dbe6f5;
}

body.dark #btnBackCategory:hover {
  border-color: #4a97f5;
  color: #8cc2ff;
}

.filter-row-title {
  font-size: 32px;
  line-height: 1;
  color: #1f2937;
  font-weight: 700;
  margin-bottom: 14px;
}
body.dark .filter-row-title {
  color: #e2e8f0;
}

.filter-chip-row,
.filter-pill-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.filter-tag-chip,
.filter-pill {
  height: 34px;
  border-radius: 8px;
  border: 1px solid #cfe2f8;
  background: #edf5ff;
  color: #3b93ed;
  font-size: 16px;
  padding: 0 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-pill {
  border-radius: 999px;
  border-color: #d4dce7;
  background: #fff;
  color: #4b5563;
  min-width: 60px;
}

.filter-tag-chip:hover,
.filter-pill:hover {
  transform: translateY(-1px);
}

.filter-tag-chip.active,
.filter-pill.active {
  background: #4a9ff3;
  border-color: #4a9ff3;
  color: #fff;
  box-shadow: 0 6px 14px rgba(74, 159, 243, 0.2);
}

.filter-tag-chip.is-locked::after {
  content: "🔒";
  font-size: 12px;
  margin-left: 6px;
}

.filter-text-input {
  width: 100%;
  height: 42px;
  border: 1px solid #d4dce7;
  border-radius: 8px;
  background: #fff;
  color: #334155;
  font-size: 16px;
  outline: none;
  padding: 0 14px;
}
.filter-text-input::placeholder {
  color: #9ca3af;
}
.filter-text-input:focus {
  border-color: #4a9ff3;
  box-shadow: 0 0 0 3px rgba(74, 159, 243, 0.12);
}
body.dark .filter-text-input {
  background: #0f1f33;
  border-color: #334155;
  color: #e2e8f0;
}

.filter-tag-empty {
  font-size: 13px;
  color: #94a3b8;
  padding: 4px 0;
}

.filter-sort-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.filter-sort-select {
  height: 36px;
  border-radius: 6px;
  border: 1px solid #d4dce7;
  background: #fff;
  color: #334155;
  font-size: 15px;
  padding: 0 12px;
  min-width: 146px;
  outline: none;
}

.filter-sort-select:focus {
  border-color: #4a9ff3;
}

body.dark .filter-sort-select {
  background: #0f1f33;
  border-color: #334155;
  color: #e2e8f0;
}

.filter-sort-dir-btn {
  width: 42px;
  height: 36px;
  border-radius: 6px;
  border: 1px solid #d4dce7;
  background: #fff;
  color: #334155;
  cursor: pointer;
  font-size: 16px;
}

.filter-sort-dir-btn:hover {
  border-color: #93c5fd;
}

body.dark .filter-sort-dir-btn {
  background: #0f1f33;
  border-color: #334155;
  color: #e2e8f0;
}

@media (max-width: 640px) {
  .filter-panel-header {
    padding: 0 14px;
  }
  .filter-panel-body {
    padding: 4px 14px 12px;
  }
  .filter-row-title {
    font-size: 15px;
  }
  .filter-tag-chip,
  .filter-pill {
    font-size: 13px;
    height: 32px;
    padding: 0 12px;
  }
  .panel-action-btn {
    font-size: 13px;
  }
}

/* =============================================
   筛选面板优化（参考站收敛版）
   ============================================= */
.page-content {
  position: relative;
}

.categories-container {
  position: relative;
  gap: 0;
  margin-bottom: 22px;
  padding-top: 0;
}

.filter-panel {
  position: relative;
  overflow: visible;
  border-radius: 16px;
  border: 1px solid #d8e3ef;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 8px 24px rgba(125, 146, 176, 0.1), 0 2px 5px rgba(15, 23, 42, 0.035);
}

.filter-panel-header {
  height: 56px;
  padding: 0 18px;
  background: linear-gradient(180deg, #f7fbff 0%, #f2f7fd 100%);
  border-bottom: 1px solid #dbe6f2;
  border-radius: 16px 16px 0 0;
  cursor: pointer;
  transition: background 0.18s ease;
}

.filter-panel.collapsed {
  border-radius: 14px;
  box-shadow: 0 6px 18px rgba(125, 146, 176, 0.08), 0 1px 4px rgba(15, 23, 42, 0.03);
}

.filter-panel.collapsed .filter-panel-header {
  height: 50px;
  padding: 0 18px;
  border-radius: 14px;
  background: linear-gradient(180deg, #f7fbff 0%, #f4f8fd 100%);
}

.filter-panel-header:hover {
  background: linear-gradient(180deg, #f9fcff 0%, #f4f8fe 100%);
}

.filter-panel.collapsed .filter-panel-header:hover {
  background: linear-gradient(180deg, #fbfdff 0%, #f6f9fe 100%);
}

.filter-panel-title {
  font-size: 13px;
  font-weight: 700;
  color: #24364d;
  letter-spacing: 0;
}

.filter-panel.collapsed .filter-panel-title {
  font-size: 11px;
  font-weight: 700;
  color: #20324b;
}

.filter-panel-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.panel-action-btn {
  border: none;
  background: transparent;
  font-size: 14px;
  font-weight: 500;
  color: #62758f;
  gap: 6px;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.filter-panel.collapsed .panel-action-btn {
  font-size: 12px;
  font-weight: 500;
  color: #60728a;
  gap: 5px;
}

.panel-action-btn:hover {
  color: #3c8df1;
}

.panel-action-btn:focus-visible {
  outline: 2px solid rgba(74, 151, 245, 0.35);
  outline-offset: 2px;
  border-radius: 6px;
}

.panel-action-icon {
  width: 15px;
  height: 15px;
}

.filter-panel.collapsed .panel-action-icon {
  width: 14px;
  height: 14px;
}

.filter-panel-body {
  padding: 8px 28px 8px;
}

.filter-row {
  padding: 9px 0 11px;
  border-bottom: 1px solid #e6edf5;
}

.filter-row-title {
  margin-bottom: 11px;
  font-size: 13px;
  line-height: 1.1;
  font-weight: 700;
  color: #44556d;
}

.filter-chip-row,
.filter-pill-row {
  gap: 9px 12px;
}

.filter-tag-chip,
.filter-pill {
  height: 30px;
  padding: 0 14px;
  border-radius: 7px;
  border: 1px solid #d7e8fb;
  background: #f1f7ff;
  color: #3b92ef;
  font-size: 12px;
  font-weight: 500;
  box-shadow: none;
  transform: none;
  line-height: 1;
}

.filter-pill {
  min-width: 58px;
  border-radius: 999px;
  border-color: #d6deea;
  background: #fff;
  color: #5a6472;
}

.filter-tag-chip:hover,
.filter-pill:hover {
  transform: translateY(-1px);
  border-color: #b9d5f7;
}

.filter-tag-chip.active,
.filter-pill.active {
  border-color: #4a97f5;
  background: #4a97f5;
  color: #fff;
  box-shadow: 0 8px 16px rgba(74, 151, 245, 0.16);
}

.filter-tag-chip.is-locked::after {
  content: "🔒";
  font-size: 10px;
  margin-left: 5px;
}

.filter-text-input {
  height: 38px;
  padding: 0 13px;
  border-radius: 8px;
  border: 1px solid #d5dfea;
  background: #fff;
  font-size: 12px;
}

.filter-sort-wrap {
  gap: 10px;
}

.filter-sort-select,
.filter-sort-dir-btn {
  height: 29px;
  border-radius: 6px;
  border: 1px solid #d4dde8;
  background: #fff;
  color: #556476;
  font-size: 12px;
}

.filter-sort-select {
  min-width: 138px;
  padding: 0 10px;
}

.filter-sort-dir-btn {
  width: 38px;
  font-size: 16px;
  line-height: 1;
}

.filter-sort-dir-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.result-toolbar {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
  margin-top: -2px;
  margin-bottom: 14px;
}

.result-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.result-title {
  font-size: 16px;
  font-weight: 700;
  color: #223247;
}

.result-count-badge {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid #d6e3f3;
  background: rgba(255, 255, 255, 0.86);
  color: #6480a0;
  font-size: 12px;
  font-weight: 600;
}

.pagination-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.pagination-bottom {
  margin-top: 18px;
  margin-bottom: 10px;
  display: flex;
  justify-content: center;
}

.pagination-numbers {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.pager-btn,
.pager-total-badge,
.pager-ellipsis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  border-radius: 50%;
  font-size: 15px;
  font-weight: 500;
}

.pager-btn {
  border: 1px solid #d3deee;
  background: rgba(255, 255, 255, 0.95);
  color: #607287;
  box-shadow: 0 6px 16px rgba(127, 160, 200, 0.16);
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.pager-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: #88b6f3;
  box-shadow: 0 10px 22px rgba(110, 158, 226, 0.24);
}

.pager-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.pager-number.active {
  border-color: #3f8ef2;
  background: linear-gradient(180deg, #4da4ff 0%, #3f8ef2 100%);
  color: #fff;
  box-shadow: 0 10px 24px rgba(63, 142, 242, 0.32);
}

.pager-go {
  min-width: 64px;
  border-radius: 999px;
  font-weight: 600;
}

.pager-total-badge {
  min-width: 56px;
  border: 1px solid #d5e0ee;
  background: rgba(255, 255, 255, 0.88);
  color: #5e6e82;
  box-shadow: 0 6px 14px rgba(143, 170, 207, 0.12);
}

.pager-ellipsis {
  min-width: 24px;
  height: 42px;
  color: #7d8ca1;
}

.gallery {
  margin-top: 0;
}

.filter-panel.collapsed + .result-toolbar {
  margin-top: 8px;
}

body.dark .filter-panel {
  background: rgba(23, 34, 52, 0.95);
  border-color: #2d3e55;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

body.dark .filter-panel-header {
  background: linear-gradient(180deg, #1d2c42 0%, #162436 100%);
  border-bottom-color: #2a3a50;
}

body.dark .filter-panel.collapsed .filter-panel-header {
  background: linear-gradient(180deg, #1b2a3f 0%, #182639 100%);
}

body.dark .filter-panel-title,
body.dark .result-title,
body.dark .filter-row-title {
  color: #e2edf9;
}

body.dark .panel-action-btn,
body.dark .result-count-badge,
body.dark .pager-btn,
body.dark .pager-total-badge,
body.dark .pager-ellipsis {
  color: #c7d5e7;
}

body.dark .filter-tag-chip {
  background: rgba(52, 94, 152, 0.18);
  border-color: rgba(96, 165, 250, 0.24);
  color: #7fc0ff;
}

body.dark .filter-pill,
body.dark .filter-text-input,
body.dark .filter-sort-select,
body.dark .filter-sort-dir-btn,
body.dark .pager-btn,
body.dark .pager-total-badge,
body.dark .result-count-badge {
  background: rgba(15, 23, 36, 0.92);
  border-color: #32455d;
}

body.dark .filter-row {
  border-bottom-color: #2a3a50;
}

@media (max-width: 1100px) {
  .pagination-wrap {
    justify-content: center;
  }

  .pagination-bottom {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .categories-container {
    padding-top: 0;
  }

  .filter-panel-header {
    height: auto;
    padding: 14px 16px;
    align-items: flex-start;
    gap: 10px;
    flex-direction: column;
  }

  .filter-panel-body {
    padding: 12px 16px 16px;
  }

  .result-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .pager-btn,
  .pager-total-badge {
    min-width: 38px;
    height: 38px;
    font-size: 14px;
  }

  .pagination-wrap {
    gap: 6px;
  }

}

/* =============================================
   顶部菜单栏折叠按钮
   ============================================= */
.collapsible-wrapper {
  position: relative;
  display: grid;
  grid-template-rows: 1fr;
  opacity: 1;
  overflow: visible;
  margin-bottom: 26px;
  transition: grid-template-rows 0.35s cubic-bezier(0.25, 1, 0.5, 1), margin-bottom 0.25s ease, min-height 0.25s ease;
  z-index: 30;
}

.collapsible-wrapper::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 100vw;
  height: 100%;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 1px 0 rgba(218, 228, 240, 0.92);
  z-index: -2;
}

.collapsible-wrapper::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 100vw;
  height: 1px;
  background: #d9e3ef;
  z-index: -1;
}

.collapsible-wrapper.collapsed {
  grid-template-rows: 0fr;
  opacity: 1;
  pointer-events: auto;
  min-height: 0;
  margin-bottom: 8px;
}

.collapsible-wrapper.collapsed::before {
  height: 0;
  background: transparent;
  box-shadow: none;
}

.collapsible-wrapper.collapsed::after {
  top: 0;
  bottom: auto;
}

.collapsible-inner {
  min-height: 0;
  overflow: visible;
  transition: opacity 0.18s ease;
}

.collapsible-wrapper.collapsed .collapsible-inner {
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

body.header-collapsed {
  padding-top: 0;
}

.header-toggle-btn {
  appearance: none;
  -webkit-appearance: none;
  position: absolute;
  right: calc((100vw - min(1680px, calc(100vw - 180px))) / -2 + 24px);
  top: calc(100% + 10px);
  z-index: 160;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  opacity: 1;
  transform: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: linear-gradient(180deg, #76a8ff 0%, #5b8ff6 100%);
  color: #ffffff;
  cursor: pointer;
  box-shadow: 0 10px 22px rgba(91, 143, 246, 0.34);
  transition: top 0.28s ease, transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.header-toggle-btn::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -10px;
  width: 3px;
  height: 10px;
  border-radius: 999px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, #76a8ff 0%, #5b8ff6 100%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.header-toggle-btn svg {
  width: 18px;
  height: 18px;
  transition: transform 0.28s ease;
}

.header-toggle-btn:hover {
  transform: translateY(-1px);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 12px 26px rgba(91, 143, 246, 0.38);
}

.header-toggle-btn.collapsed {
  top: 8px;
}

.header-toggle-btn.collapsed svg {
  transform: rotate(180deg);
}

body.dark .collapsible-wrapper::before {
  background: rgba(18, 28, 42, 0.96);
  box-shadow: 0 1px 0 rgba(53, 73, 99, 0.95);
}

body.dark .collapsible-wrapper::after {
  background: #344a63;
}

body.dark .header-toggle-btn {
  background: linear-gradient(180deg, #4c7fe6 0%, #3d6fd3 100%);
  color: #fff;
  box-shadow: 0 8px 18px rgba(34, 65, 128, 0.4);
}

body.dark .header-toggle-btn::before {
  background: linear-gradient(180deg, #4c7fe6 0%, #3d6fd3 100%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1);
}

@media (max-width: 1440px) {
  .header-toggle-btn {
    right: calc((100vw - min(1500px, calc(100vw - 96px))) / -2 + 22px);
  }

  .collapsible-wrapper.collapsed {
    min-height: 0;
    margin-bottom: 8px;
  }
}

@media (max-width: 1024px) {
  .header-toggle-btn {
    right: 16px;
    top: calc(100% + 12px);
  }

  .collapsible-wrapper {
    margin-bottom: 52px;
  }

  .collapsible-wrapper.collapsed {
    min-height: 0;
    margin-bottom: 8px;
  }

  .header-toggle-btn::before {
    top: -12px;
    height: 12px;
  }
}

@media (max-width: 900px) {
  .header-toggle-btn {
    right: 12px;
    width: 38px;
    height: 38px;
  }

  .header-toggle-btn svg {
    width: 16px;
    height: 16px;
  }

  .collapsible-wrapper.collapsed {
    min-height: 0;
    margin-bottom: 6px;
  }
}