/* ═══════════════════════════════════════════════════════
   Happy AI · Store — AI Tools Store V2
   白色简洁专业风格 · 大方卖软件
   ═══════════════════════════════════════════════════════ */

:root {
  --bg: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-card: #ffffff;
  --text-primary: #1a1a2e;
  --text-secondary: #64748b;
  --text-dim: #94a3b8;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --accent: #2563eb;
  --accent-light: #3b82f6;
  --accent-bg: #eff6ff;
  --accent-border: #bfdbfe;
  --blue: #2563eb;
  --green: #16a34a;
  --green-bg: #f0fdf4;
  --orange: #ea580c;
  --orange-bg: #fff7ed;
  --red: #dc2626;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --font: 'Inter', -apple-system, 'SF Pro Display', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  padding-top: 64px; /* NAV-FIXED-DESKTOP-20260523 抵消 fixed navbar 64px 占位 */
}
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-light); }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: var(--font); }
input, textarea, select { font-family: var(--font); }

/* ── 容器 ── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* NAV-FIX-V5-BACKDROP-FILTER-KILLED-20260517 */
/* ── 导航栏 ── */
/* W3C CSS Containment: backdrop-filter ≠ none 会让 .navbar 成为所有 fixed 后代的 containing block
   导致 .nav-dropdown-menu { position:fixed } 在 iOS Safari 被锁在 navbar 56px 高度内无法显示
   根治方案：注释掉 backdrop-filter，用 0.96 不透明度补偿毛玻璃视觉 */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; width: 100%; height: 64px; z-index: 1000;
  background: rgba(255,255,255,0.96); /* backdrop-filter: blur(12px); CC-DISABLED-2026-05-17-iOS-fixed-bug */
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04); /* NAV-FIXED-DESKTOP-20260523 桌面端 fixed 滚动可见 */
}
.navbar .logo {
  font-size: 18px; font-weight: 700; color: var(--text-primary);
  display: flex; align-items: center; gap: 10px;
}
.navbar .logo img { height: 28px; width: auto; }
.navbar .logo .badge {
  font-size: 10px; font-weight: 600; color: var(--accent);
  background: var(--accent-bg); border: 1px solid var(--accent-border);
  padding: 2px 8px; border-radius: 20px; text-transform: uppercase;
}
.nav-links { display: flex; gap: 18px; align-items: center; min-width: 0; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
/* NAV-DROPDOWN-HAS-FIX-20260604: 下拉打开/hover时让nav-links overflow visible脱离裁剪(overflow-x:auto强制overflow-y:auto会裁absolute下拉·复犯6+次根治)·纯CSS共用修所有页·:has()兼容Chrome105+/Safari15.4+ */
.nav-links:has(.nav-dropdown.open),.nav-links:has(.nav-dropdown:hover),.nav-links:has(.nav-dropdown:focus-within){overflow:visible;}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a,
.nav-dropdown-trigger {
  color: var(--text-secondary); font-size: 14px; font-weight: 500;
  transition: color 0.2s;
  white-space: nowrap; flex-shrink: 0;
}
.nav-dropdown-toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 1px;
  height: 1px;
}
.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  height: auto;
  padding: 0;
  border: 0;
  background: transparent;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active,
.nav-dropdown-trigger:hover,
.nav-dropdown-toggle:checked + .nav-dropdown-trigger,
.nav-dropdown.open .nav-dropdown-trigger { color: var(--text-primary); }
.nav-right { display: flex; gap: 12px; align-items: center; }
/* NAV-MATRIX-RESPONSIVE-20260601 中等屏(≤1280)收搜索框+缩胶囊+缩间距·防8项+3胶囊挤爆竖排 */
@media (max-width:1280px){ .nav-search{display:none !important;} .nav-links{gap:13px;} .nav-matrix-btn{padding:5px 10px;font-size:12px;gap:4px;} }
.nav-mobile-login { display: none; }
.nav-mobile-only { display: none; }
/* NAV-MATRIX-20260601 矩阵站平铺彩色胶囊（浩哥打矩阵·3 站顶部跳转·震撼版·渐变+hover上浮发光）*/
.nav-matrix-btn{display:inline-flex;align-items:center;gap:5px;padding:6px 13px;border-radius:20px;font-size:13px;font-weight:700;line-height:1.3;color:#fff !important;text-decoration:none;white-space:nowrap;flex:0 0 auto;transition:transform .2s,box-shadow .2s,filter .2s;box-shadow:0 2px 8px rgba(0,0,0,0.12);}
.nav-matrix-btn .icon{width:14px;height:14px;stroke:#fff;flex-shrink:0;}
.nav-matrix-btn:hover{transform:translateY(-2px);filter:brightness(1.07);}
.nav-matrix-gen{background:linear-gradient(135deg,#6366f1 0%,#8b5cf6 100%);}
.nav-matrix-gen:hover{box-shadow:0 7px 18px rgba(124,58,237,0.5);}
.nav-matrix-course{background:linear-gradient(135deg,#f59e0b 0%,#f97316 100%);}
.nav-matrix-course:hover{box-shadow:0 7px 18px rgba(249,115,22,0.5);}
.nav-matrix-opc{background:linear-gradient(135deg,#10b981 0%,#0ea5e9 100%);}
.nav-matrix-opc:hover{box-shadow:0 7px 18px rgba(14,165,233,0.5);}
.nav-link-button {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  border: 0;
  background: transparent;
  white-space: nowrap;
}

/* ── 按钮 ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 22px; border-radius: 8px; font-size: 14px; font-weight: 600;
  border: none; transition: all 0.2s; white-space: nowrap;
}
.btn-primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 1px 3px rgba(37,99,235,0.3);
}
.btn-primary:hover { background: var(--accent-light); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(37,99,235,0.25); }
.btn-secondary {
  background: var(--text-primary); color: #fff;
}
.btn-secondary:hover { background: #2d2d4e; }
.btn-outline {
  background: transparent; color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost { background: transparent; color: var(--text-secondary); border: none; }
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-secondary); }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── 工具卡片（v7 紧凑版 2026-04-28 一排 3-4 个+移动端响应式）── */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  transition: all 0.25s;
  display: flex; flex-direction: column; gap: 10px;
  text-decoration: none; color: inherit;
}
@media (min-width: 1280px) {
  .tool-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 1024px) and (min-width: 768px) {
  .tool-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 767px) and (min-width: 480px) {
  /* MOBILE-GRID-2COL-20260523 */
  .tool-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .tool-card { padding: 14px 12px; gap: 8px; }
  .tool-card h3 { font-size: 13.5px; }
  .tool-card p { font-size: 12px; line-height: 1.4; }
  .tool-card-footer { padding-top: 12px; }
  .stable-badge { font-size: 9.5px; padding: 3px 7px; }
} /* a-badge-stock-row-20260523-m1 */
@media (max-width: 479px) {
  /* MOBILE-GRID-2COL-20260523 */
  .tool-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .tool-card { padding: 12px 10px; gap: 6px; }
  .tool-card h3 { font-size: 13px; }
  .tool-card p { font-size: 12px; line-height: 1.4; }
  .tool-card .tag-line { font-size: 10px; }
  .tool-card-footer { padding-top: 10px; }
  .stable-badge { font-size: 9.5px; padding: 3px 7px; }
} /* a-badge-stock-row-20260523-m2 */
.tool-card:hover {
  border-color: var(--accent-border);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.tool-card-header {
  display: flex; align-items: center; gap: 14px;
} /* a-badge-stock-row-20260523 */
.tool-logo {
  width: 48px; height: 48px; border-radius: 12px;
  object-fit: contain; flex-shrink: 0;
  background: var(--bg-secondary); padding: 6px;
}
.tool-logo-placeholder {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; flex-shrink: 0; background: var(--bg-secondary);
}
.tool-card h3 { font-size: 15px; font-weight: 700; line-height: 1.3; }
.tool-card .tag-line { font-size: 11px; color: var(--text-dim); font-weight: 500; }
.tool-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.5; flex: 1; }
@media (max-width: 767px) {
  .tool-card h3 { font-size: 14px; }
  .tool-card p { font-size: 12.5px; line-height: 1.45; }
  .tool-card .tag-line { font-size: 10.5px; }
}
.tool-card-footer {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 16px; border-top: 1px solid var(--border-light);
}
.tool-tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px; border-radius: 20px;
  font-size: 12px; font-weight: 600;
}
.tag-available { background: var(--green-bg); color: var(--green); }
.tag-limited { background: var(--orange-bg); color: var(--orange); }
.view-link {
  font-size: 13px; font-weight: 600; color: var(--accent);
  display: flex; align-items: center; gap: 4px;
}
.view-link:hover { gap: 8px; }

/* ── 表单 ── */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 14px; font-weight: 500;
  color: var(--text-primary); margin-bottom: 6px;
}
.form-input {
  width: 100%; padding: 11px 14px; font-size: 14px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text-primary); outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.form-input::placeholder { color: var(--text-dim); }
textarea.form-input { min-height: 100px; resize: vertical; }

/* ── 统计卡片（admin） ── */
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px; text-align: center;
  transition: all 0.2s;
}
.stat-card:hover { box-shadow: var(--shadow-md); }
.stat-card .icon { font-size: 28px; margin-bottom: 8px; }
.stat-card .value {
  font-size: 32px; font-weight: 800; color: var(--accent);
}
.stat-card .label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

/* ── 表格 ── */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; padding: 12px 16px; color: var(--text-secondary); font-weight: 600; background: var(--bg-secondary); border-bottom: 1px solid var(--border); }
td { padding: 12px 16px; border-bottom: 1px solid var(--border-light); }
tr:hover td { background: var(--bg-secondary); }

/* ── 状态标签 ── */
.status { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.status-pending { background: #fef3c7; color: #d97706; }
.status-confirmed { background: var(--accent-bg); color: var(--accent); }
.status-delivered { background: var(--green-bg); color: var(--green); }
.status-cancelled { background: #fef2f2; color: var(--red); }

/* ── Toast ── */
.toast {
  position: fixed; top: 20px; left: 50%; transform: translateX(-50%);
  padding: 12px 24px; border-radius: 10px; font-size: 14px; z-index: 99999;
  animation: toastIn 0.3s ease-out; max-width: 90vw; font-weight: 500;
  box-shadow: var(--shadow-lg);
}
.toast-success { background: #fff; color: var(--green); border: 1px solid #bbf7d0; }
.toast-error { background: #fff; color: var(--red); border: 1px solid #fecaca; }
.toast-info { background: #fff; color: var(--accent); border: 1px solid var(--accent-border); }
@keyframes toastIn { from { opacity: 0; transform: translateX(-50%) translateY(-12px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }

/* ── 语言切换 ── */
.lang-switch {
  display: flex; gap: 2px; background: var(--bg-secondary);
  border-radius: 6px; padding: 2px; border: 1px solid var(--border);
}
.lang-switch button {
  padding: 4px 10px; border: none; border-radius: 4px;
  font-size: 12px; color: var(--text-dim); background: transparent;
  transition: all 0.2s; font-weight: 500;
}
.lang-switch button.active { background: #fff; color: var(--text-primary); box-shadow: var(--shadow-sm); }

/* ── 信息卡片 ── */
.info-card {
  background: var(--bg-secondary); border: 1px solid var(--border-light);
  border-radius: var(--radius); padding: 24px;
}
.info-card h3 { font-size: 15px; font-weight: 700; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.info-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* ── 响应式（v7 2026-04-28：移除 .nav-links display:none 和 .tool-grid 1fr 让上面新规则生效）── */
@media (max-width: 768px) {
  .navbar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 8px;
    height: 56px;
    padding: 0 12px;
    overflow: visible;
  }
  .navbar .logo { min-width: max-content; }
  .nav-links {
    display: flex !important;
    gap: 14px;
    min-width: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    overscroll-behavior-x: contain;
    padding: 0 4px 2px;
  }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a,
  .nav-dropdown-trigger,
  .nav-dropdown {
    flex: 0 0 auto;
  }
  .nav-links a,
  .nav-dropdown-trigger {
    font-size: 13px;
    line-height: 56px;
    white-space: nowrap;
  }
  /* NAV-MATRIX-20260601 移动端胶囊覆盖 line-height:56px 防撑高 */
  .nav-links a.nav-matrix-btn { line-height: 1.3; font-size: 12px; padding: 5px 11px; gap: 4px; }
  .nav-links a.nav-matrix-btn .icon { width: 13px; height: 13px; }
  .nav-right { display: none; }
  .nav-mobile-login,
  .nav-mobile-only { display: inline-flex; }
  .nav-link-button {
    flex: 0 0 auto;
    font-size: 13px;
    line-height: 56px;
  }
  .container { padding: 0 16px; }
  .stat-card .value { font-size: 24px; }
}
@media (max-width: 480px) {
  .btn-lg { padding: 12px 20px; font-size: 14px; }
}

/* ── nav-dropdown 商品分类下拉（v7 2026-04-28 修复导航堆叠 bug）── */
.navbar .nav-dropdown { position: relative; }
.nav-dropdown-trigger { cursor: pointer; }
.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  box-shadow: 0 12px 28px rgba(0,0,0,0.1);
  min-width: 200px;
  display: none;
  z-index: 1000;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu,
.nav-dropdown-toggle:checked ~ .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu { display: block; }
.nav-dropdown-menu .cat-item {
  display: block;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--text-primary);
  text-decoration: none;
  white-space: nowrap;
}
.nav-dropdown-menu .cat-item:hover { background: var(--accent-bg); color: var(--accent); }
.nav-dropdown-menu .cat-item.active { background: var(--accent-bg); color: var(--accent); font-weight: 700; }
@media (max-width: 768px) {
  .nav-dropdown:hover .nav-dropdown-menu { display: none; }
  .nav-dropdown-toggle:checked ~ .nav-dropdown-menu,
  .nav-dropdown.open .nav-dropdown-menu,
  .nav-dropdown:focus-within .nav-dropdown-menu { display: block !important; }
  .nav-dropdown-menu {
    position: fixed !important;
    top: 56px;
    left: 12px;
    right: 12px;
    z-index: 10000;
    border-radius: 12px;
    min-width: 0;
    max-height: 70vh;
    overflow-y: auto;
  }
  .nav-dropdown-menu .cat-item { padding: 12px 16px; font-size: 15px; }
}

/* v9 22:55 售罊锁定样式（浩哥拍"没货就锁住"）· 5-8 视觉增强：更强灰阶+更明显红badge */
.tool-card-soldout {
  position: relative;
  opacity: 0.7;
  filter: grayscale(0.5);
  pointer-events: auto;
}
.tool-card-soldout:hover {
  opacity: 0.82;
  transform: none;
  box-shadow: var(--shadow-sm);
}
.tool-card-soldout::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, transparent 0 18px, rgba(156,163,175,0.07) 18px 19px);
  pointer-events: none;
  border-radius: inherit;
}
/* 5-8 改：sold-out badge 改为红色（更明显）*/
.stable-badge.sold-out {
  background: #dc2626;
  color: #fff;
  border: none;
  font-weight: 800;
}
.tool-tag.tag-soldout {
  color: #dc2626;
  background: rgba(220, 38, 38, 0.1);
}
.view-link.soldout-link {
  color: #9ca3af;
  text-decoration: line-through;
}

/* 5-8 新增：现货 badge 更亮绿 + 呼吸动画 */
.stable-badge.stable {
  background: #16a34a !important;
  color: #fff !important;
  border: none !important;
  font-weight: 800;
  animation: greenPulse 2.4s ease-in-out infinite;
}
@keyframes greenPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(22,163,74,0); }
  50%       { box-shadow: 0 0 0 4px rgba(22,163,74,0.18); }
}

/* 5-8 新增：价格标签红色加粗 · 5-17升级手机端28px */
.price-tag {
  font-size: 28px;
  font-weight: 900;
  color: #dc2626;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

/* ── 5-12 Lucide SVG 图标系统（替换 emoji · L-021）── */
.icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.125em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  display: inline-block;
  flex-shrink: 0;
}
/* 导航下拉菜单每条独占一行 · 修断行 bug */
.nav-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 9px 14px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--text-primary);
  text-decoration: none;
}
.nav-dropdown-menu a:hover { background: var(--accent-bg); color: var(--accent); }
.nav-dropdown-menu a.active { background: var(--accent-bg); color: var(--accent); font-weight: 700; }
/* warn-card icon 对齐 */
.warn-card h3 { display: flex; align-items: center; gap: 8px; }

/* 5-8 新增：卡片 hover 增强（阴影更深 + 上移 2px 已有，加 border 更明显）*/
.tool-card:hover {
  border-color: var(--accent-border);
  box-shadow: 0 16px 32px -4px rgba(37,99,235,0.14), 0 6px 12px -4px rgba(37,99,235,0.08);
  transform: translateY(-3px);
}

/* ── 5-17 mobile UX · 商品卡"立即购买"按钮 · MOBILE-UX-3IN1-20260517 ── */
.btn-buy-card {
  display: block;
  width: 100%;
  background: #16a34a;
  color: #fff;
  border-radius: 10px;
  padding: 10px 0;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
  margin-top: 4px;
  line-height: 1.4;
  transition: background 0.15s;
}
.tool-card:hover .btn-buy-card {
  background: #15803d;
}
.tool-card-footer {
  flex-direction: column;
  gap: 6px;
  align-items: stretch;
}
/* a-badge-stock-row-20260523: badge 在 footer column 里对齐左边，不 stretch */
.tool-card-footer .card-stable-badge-wrap {
  align-self: flex-start;
}
/* 5-17 hero特价卡 hover效果 */
.hero-deal-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.13);
}

/* === 5-20 赠品 badge · 金色文字 · 禁 emoji === */
.gift-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  color: #78350f;
  font-size: 11px;
  font-weight: 700;
  border-radius: 5px;
  box-shadow: 0 2px 6px rgba(251, 191, 36, 0.3);
  white-space: nowrap;
  letter-spacing: 0.2px;
}

/* 卡片右上角小角标 */
.gift-badge-corner {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
}

/* 详情页大礼包卡片 */
.tool-detail-gift-section {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border: 1.5px solid #fbbf24;
  border-radius: 16px;
  padding: 24px;
  margin: 0 0 32px;
}
.tool-detail-gift-title {
  font-size: 17px;
  font-weight: 800;
  color: #78350f;
  margin: 0 0 16px;
}
.tool-detail-gift-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.tool-detail-gift-item {
  background: #fff;
  padding: 14px 16px;
  border-radius: 10px;
}
.tool-detail-gift-item h4 {
  margin: 0 0 5px;
  font-size: 13px;
  font-weight: 700;
  color: #92400e;
}
.tool-detail-gift-item p {
  margin: 0;
  font-size: 12px;
  color: #666;
  line-height: 1.5;
}
.tool-detail-gift-footer {
  text-align: center;
  color: #78350f;
  margin-top: 16px;
  font-weight: 600;
  font-size: 13px;
}

/* ── NAV-FULLSCREEN-MENU-20260521 · B方案·全屏☰菜单·8次复犯换架构 ── */
/* 桌面端 ≥768px：隐藏☰和全屏菜单，显示原nav-links */
.nav-hamburger { display: none; }
.nav-fullscreen-menu { display: none; }

/* 移动端 ≤767px：隐藏原nav-links，显示☰ */
@media (max-width: 767px) {
  .nav-links { display: none !important; }
  .nav-right { display: none !important; }
  .nav-hamburger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 24px;
    color: var(--text-primary);
    padding: 0;
    margin-left: auto;
    -webkit-tap-highlight-color: rgba(37,99,235,0.15);
  }
  /* 全屏菜单覆盖层 */
  .nav-fullscreen-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #ffffff;
    z-index: 9999;
    flex-direction: column;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    opacity: 0;
    transition: opacity 0.3s ease;
  }
  body.menu-open .nav-fullscreen-menu {
    display: flex;
    opacity: 1;
  }
  body.menu-open {
    overflow: hidden;
  }
  /* 菜单头部 */
  .nav-fullscreen-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    height: 56px;
    border-bottom: 1px solid #f0f0f0;
    flex-shrink: 0;
  }
  .nav-fullscreen-logo {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
  }
  .nav-menu-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 28px;
    color: #666;
    line-height: 1;
    padding: 0;
    -webkit-tap-highlight-color: rgba(0,0,0,0.1);
  }
  /* 菜单主体列表 */
  .nav-fullscreen-body {
    flex: 1;
    padding: 8px 0;
  }
  .nav-menu-link {
    display: flex;
    align-items: center;
    padding: 0 24px;
    height: 56px;
    font-size: 18px;
    font-weight: 500;
    color: #1a1a1a;
    text-decoration: none;
    border: none;
    background: transparent;
    -webkit-tap-highlight-color: rgba(37,99,235,0.1);
  }
  .nav-menu-link:active { background: #f5f5f5; }
  /* accordion (details/summary) */
  .nav-menu-accordion {
    display: block;
  }
  .nav-menu-accordion > summary {
    display: flex;
    align-items: center;
    padding: 0 24px;
    height: 56px;
    font-size: 18px;
    font-weight: 500;
    color: #1a1a1a;
    list-style: none;
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(37,99,235,0.1);
  }
  .nav-menu-accordion > summary::-webkit-details-marker { display: none; }
  .nav-menu-accordion > summary::after {
    content: '\25BE';
    margin-left: auto;
    font-size: 14px;
    color: #999;
    transition: transform 0.2s;
  }
  .nav-menu-accordion[open] > summary::after {
    transform: rotate(-180deg);
  }
  .nav-menu-accordion:active > summary { background: #f5f5f5; }
  /* accordion 子项 */
  .nav-menu-sub {
    background: #f9f9f9;
    padding: 4px 0;
  }
  .nav-menu-sub a {
    display: flex;
    align-items: center;
    padding: 0 40px;
    height: 48px;
    font-size: 16px;
    color: #333;
    text-decoration: none;
    -webkit-tap-highlight-color: rgba(37,99,235,0.1);
  }
  .nav-menu-sub a:active { background: #f0f0f0; }
  /* 分隔线 */
  .nav-menu-divider {
    height: 1px;
    background: #f0f0f0;
    margin: 4px 24px;
  }
}

/* NAV-UNIFY-A1-B-20260521 · A1方案☰加菜单中文字 */
.hamburger-text {
  font-size: 13px;
  font-weight: 500;
  margin-left: 2px;
  display: none; /* 桌面隐藏 */
}
@media (max-width: 767px) {
  .hamburger-text {
    display: inline;
  }
  .nav-hamburger {
    width: auto;
    padding: 0 12px;
    gap: 2px;
    font-size: 18px;
  }
}

/* Codex 2026-10-12 · TASK-4 · CHG-20261012-WUTOP-TUTORIAL-NAV · Keep logo/controls at original edges. */
.tn-menu-group{padding:8px 14px 2px;font-size:11px;font-weight:700;color:#94a3b8;}
.tn-search-toggle{display:none;}
@media(min-width:768px){
  body:has(.navbar){padding-top:var(--site-nav-height,64px)!important;}
  /* No base navbar geometry/font/gap override: healthy wide view keeps original CSS. */
  .navbar.tn-adapt{display:grid!important;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-template-rows:64px auto;align-items:center!important;height:auto!important;min-height:64px;overflow:visible!important;}
  .navbar.tn-adapt>.logo{grid-column:1;grid-row:1;justify-self:start;flex-shrink:0;white-space:nowrap;}
  .navbar.tn-adapt>.nav-right{display:flex!important;grid-column:2;grid-row:1;justify-self:end;align-items:center;gap:8px;flex-shrink:0;white-space:nowrap;}
  .navbar.tn-adapt:has([data-site-updates])>.nav-right{padding-left:46px;}
  .navbar.tn-adapt>.nav-links{display:flex!important;grid-column:1 / -1;grid-row:2;justify-self:center;justify-content:center;align-items:center;flex-wrap:wrap;gap:8px;width:100%;min-width:0;overflow:visible!important;margin:0;padding:0 0 12px;}
  .navbar.tn-adapt.tn-one-row{grid-template-rows:64px!important;row-gap:0!important;}
  .navbar.tn-adapt.tn-one-row>.nav-links{grid-column:auto;grid-row:auto;position:absolute;left:var(--tn-nav-centre);top:32px;transform:translate(-50%,-50%);width:max-content;max-width:none;flex-wrap:nowrap;padding:0;}
  .navbar.tn-adapt .nav-links>a,.navbar.tn-adapt .nav-dropdown-trigger{line-height:1.4!important;white-space:nowrap;flex:0 0 auto;}
  .navbar.tn-adapt .nav-dropdown{flex:0 0 auto;}
  .navbar.tn-adapt .nav-mobile-login,.navbar.tn-adapt .nav-mobile-only,.navbar.tn-adapt .nav-hamburger,.navbar.tn-adapt .nav-compact-actions{display:none!important;}
  .navbar.tn-adapt .nav-search{display:flex!important;position:relative;flex:0 0 auto;}
  .navbar.tn-adapt .tn-search-toggle{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;font-size:24px;border:1px solid #e2e8f0;border-radius:8px;background:white;}
  .navbar.tn-adapt .nav-search input{display:none;}
  .navbar.tn-adapt .nav-search.tn-search-open input{display:block;position:fixed;right:12px;top:calc(var(--site-nav-height,64px) + 8px);width:min(300px,calc(100vw - 24px));padding:8px 10px;border:1px solid #e2e8f0;border-radius:8px;background:white;box-shadow:0 4px 16px #0002;}
  .navbar.tn-adapt .nav-dropdown-menu{position:fixed!important;top:var(--tn-dropdown-top,var(--site-nav-height,64px))!important;left:var(--tn-dropdown-left,12px)!important;max-width:calc(100vw - 24px);max-height:calc(100vh - var(--site-nav-height,64px) - 24px)!important;overflow-y:auto;}
  .navbar.tn-adapt ~ .ai-service-dock{display:block!important;top:calc(var(--site-nav-height,64px) + 32px)!important;}
}
@media(min-width:768px) and (max-width:1365px){
  .navbar.tn-adapt .nav-links>a,.navbar.tn-adapt .nav-dropdown-trigger{font-size:12px!important;}
  .navbar.tn-adapt .nav-matrix-btn{padding:6px 7px!important;gap:4px;}
}
/* Mobile navbar and fullscreen mechanics remain the original source rules. New long tutorial title wraps. */
@media(max-width:767px){
  .tn-menu-group{padding:8px 24px 2px;font-size:12px;}
  .nav-menu-sub a{white-space:normal!important;height:auto;min-height:48px;line-height:1.5;padding:12px 24px;overflow-wrap:anywhere;}
}