/* =============================================================
 *  工具集 · 样式表（对齐小刀网导航设计风格）
 *  配色：主色 #1e73be / 背景 #f9f9f9 / 强调红 #f1404b
 * ============================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --brand: #1e73be;
  --brand-strong: #175d99;
  --brand-soft: #eaf2fb;
  --brand-ring: rgba(30, 115, 190, .28);
  --accent: #f1404b;
  --accent-soft: #ffecee;

  --bg: #f9f9f9;
  --bg-soft: #f1f4f8;
  --surface: #ffffff;
  --surface-2: #fbfcfd;
  --text: #14171b;
  --text-2: #5b6470;
  --text-3: #8a94a6;
  --border: #e9edf2;
  --border-strong: #d9e0e9;

  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(20,23,27,.04), 0 2px 8px rgba(20,23,27,.04);
  --shadow: 0 1px 2px rgba(20,23,27,.04), 0 8px 24px rgba(20,23,27,.06);
  --shadow-hover: 0 6px 14px rgba(30,115,190,.10), 0 18px 40px rgba(20,23,27,.10);

  --header-h: 64px;
  --sidebar-w: 240px;
  --container: 1480px;
  --ease: cubic-bezier(.22,.61,.36,1);
  --success: #16a34a;
  --success-strong: #166534;
  --success-soft: #dcfce7;
  --warning: #f59e0b;
  --warning-strong: #92400e;
  --warning-soft: #fef3c7;
  --danger: #dc2626;
  --danger-strong: #991b1b;
  --danger-soft: #fee2e2;
  --info-soft: #eff6ff;
  --purple: #8b5cf6;
  --purple-strong: #6d28d9;
  --purple-soft: #ede9fe;
  --cyan: #06b6d4;
  --cyan-strong: #0891b2;
  --cyan-soft: #cffafe;
  color-scheme: light;
}

[data-theme="dark"] {
  --bg: #12161c;
  --bg-soft: #171c24;
  --surface: #1b212a;
  --surface-2: #20272f;
  --text: #e8edf4;
  --text-2: #a4b0c0;
  --text-3: #74808f;
  --border: #2a323d;
  --border-strong: #37414e;
  --brand-soft: #16283a;
  --accent-soft: #3a1f23;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
  --shadow: 0 4px 16px rgba(0,0,0,.35);
  --shadow-hover: 0 10px 30px rgba(0,0,0,.45);
  --success: #22c55e;
  --success-strong: #4ade80;
  --success-soft: #14532d;
  --warning: #f59e0b;
  --warning-strong: #fbbf24;
  --warning-soft: #422006;
  --danger: #ef4444;
  --danger-strong: #f87171;
  --danger-soft: #450a0a;
  --info-soft: #172554;
  --purple: #a78bfa;
  --purple-strong: #c4b5fd;
  --purple-soft: #3b0764;
  --cyan: #22d3ee;
  --cyan-strong: #67e8f9;
  --cyan-soft: #083344;
  color-scheme: dark;
}

/* ---------- 2. 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color .3s var(--ease), color .3s var(--ease);
}
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
[hidden] { display: none !important; }
button { font: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 6px; }

/* ---------- 3. 顶部导航栏 ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.88);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  transition: box-shadow .25s var(--ease);
}
[data-theme="dark"] .topbar { background: rgba(18,22,28,.88); }
.topbar.is-scrolled { box-shadow: 0 4px 20px rgba(20,23,27,.08); }

.topbar-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  height: var(--header-h);
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(14px, 3vw, 32px);
}
.topbar-left { display: flex; align-items: center; gap: 14px; flex: 1; min-width: 0; }
.topbar-right { display: flex; align-items: center; gap: 12px; flex: none; }

/* Logo */
.logo { display: flex; align-items: center; gap: 10px; flex: none; }
.logo-mark {
  display: grid; place-items: center;
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), #4a9be0);
  color: #fff; font-size: 19px; font-weight: 700;
  box-shadow: 0 4px 12px rgba(30,115,190,.32);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong { font-size: 17px; letter-spacing: .3px; }
.logo-text small { font-size: 11px; color: var(--text-3); }

/* 面包屑 */
.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 14px; color: var(--text-2); min-width: 0; overflow: hidden; }
.breadcrumb a { color: var(--text-2); transition: color .2s; }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb .sep { color: var(--text-3); }
.breadcrumb .current { color: var(--text); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* 汉堡按钮 */
.menu-toggle {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text-2);
  font-size: 18px;
  align-items: center; justify-content: center;
  transition: all .2s var(--ease);
}
.menu-toggle:hover { border-color: var(--brand); color: var(--brand); }

/* 主题切换 */
.theme-toggle {
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text-2);
  display: flex; align-items: center; justify-content: center;
  transition: all .2s var(--ease);
}
.theme-toggle:hover { border-color: var(--brand); color: var(--brand); }
.theme-toggle svg { width: 18px; height: 18px; fill: currentColor; }
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

/* 搜索框 */
.search-box {
  position: relative;
  display: flex; align-items: center;
  width: 280px; max-width: 40vw;
}
.search-box .search-icon {
  position: absolute; left: 12px;
  width: 16px; height: 16px;
  fill: var(--text-3);
  pointer-events: none;
}
.search-box input {
  width: 100%;
  padding: 9px 12px 9px 36px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font-size: 13.5px;
  outline: none;
  transition: all .2s var(--ease);
}
.search-box input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); }
.search-box input::placeholder { color: var(--text-3); }

/* ---------- 4. 主布局 ---------- */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  gap: 0;
  align-items: start;
  max-width: var(--container);
  margin: 0 auto;
  min-height: calc(100vh - var(--header-h));
}

.overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.4);
  z-index: 199;
}
.overlay.active { display: block; }

/* ---------- 5. 侧边栏（导航站风格） ---------- */
.sidebar {
  position: sticky;
  top: var(--header-h);
  align-self: start;
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: 16px 12px 24px;
  border-right: 1px solid var(--border);
  background: var(--bg);
}
.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }

.sidebar-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 6px 14px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}
.sidebar-header .logo { font-size: 15px; font-weight: 700; color: var(--text); }

/* 频道切换按钮 */
.sidebar-channel {
  display: flex; gap: 6px;
  margin-bottom: 14px; padding: 0 2px;
}
.sidebar-channel a {
  flex: 1; text-align: center;
  padding: 8px 4px;
  border-radius: 8px;
  font-size: 12px;
  text-decoration: none;
  transition: all .2s var(--ease);
}
.sidebar-channel .ch-nav {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
}
.sidebar-channel .ch-nav:hover { border-color: var(--brand); color: var(--brand); }
.sidebar-channel .ch-tools {
  background: var(--brand-soft);
  border: 1px solid var(--brand);
  color: var(--brand);
  font-weight: 600;
}

/* 侧栏搜索 */
.sidebar-search {
  position: relative;
  display: flex; align-items: center;
  margin-bottom: 14px;
}
.sidebar-search input {
  width: 100%;
  padding: 9px 12px 9px 34px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  outline: none;
  transition: all .2s;
}
.sidebar-search input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); }
.sidebar-search::before {
  content: '🔍';
  position: absolute; left: 10px;
  font-size: 13px;
}

/* 侧栏分组（导航站类名） */
.sidebar-nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar-group { margin-bottom: 2px; }

.sidebar-group-title {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--text-2);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: color .2s var(--ease), background-color .2s var(--ease);
}
.sidebar-group-title:hover { color: var(--brand); background: var(--brand-soft); }
.sidebar-group-title .ic { flex: none; font-size: 15px; }
.sidebar-group-title .label {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar-group-title .count {
  flex: none;
  font-size: 11px;
  color: var(--text-3);
  font-weight: 400;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 7px;
}
.sidebar-group.is-active > .sidebar-group-title {
  background: var(--brand);
  color: #fff;
}
.sidebar-group.is-active > .sidebar-group-title .count {
  background: rgba(255,255,255,.18);
  color: #fff;
  border-color: transparent;
}

.sidebar-group-children {
  display: none;
  flex-direction: column;
  gap: 1px;
  margin: 4px 0 6px 10px;
  padding: 2px 0 2px 10px;
  border-left: 2px solid var(--border);
}
.sidebar-group.is-active .sidebar-group-children { display: flex; }

.sidebar-child-link {
  display: block;
  padding: 6px 10px;
  border-radius: 6px;
  color: var(--text-3);
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color .2s var(--ease), background-color .2s var(--ease);
}
.sidebar-child-link:hover { color: var(--brand); background: var(--brand-soft); }
.sidebar-child-link.is-active {
  color: var(--brand);
  background: var(--brand-soft);
  font-weight: 600;
  border-left: 3px solid var(--brand);
  padding-left: 7px;
}

/* ---------- 6. 主内容区 ---------- */
.main { min-width: 0; }
.content {
  padding: 28px clamp(16px, 3vw, 36px) 48px;
  max-width: 100%;
}

/* 页面标题区 */
.page-header {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.page-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
  letter-spacing: -.3px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-title .title-icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  font-size: 24px;
  background: var(--brand-soft);
  border-radius: 12px;
  flex: none;
}
.page-desc {
  font-size: 14px;
  color: var(--text-2);
  margin: 0;
  line-height: 1.7;
}

/* 工具卡片 */
.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s var(--ease);
}
.tool-card:hover { box-shadow: var(--shadow); }

/* 表单 */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}
.form-group { margin-bottom: 16px; }
.form-group:last-child { margin-bottom: 0; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 8px;
}
.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group input[type="time"],
.form-group input[type="email"],
.form-group input[type="search"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: all .2s var(--ease);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-soft);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-3); }

/* 文件上传 */
.form-group input[type="file"] {
  width: 100%;
  padding: 12px;
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  color: var(--text-2);
  font-size: 14px;
  cursor: pointer;
  transition: all .2s;
}
.form-group input[type="file"]:hover {
  border-color: var(--brand);
  background: var(--brand-soft);
}

/* 按钮 */
button, .btn {
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 11px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-2);
  cursor: pointer;
  transition: all .2s var(--ease);
}
button:hover, .btn:hover { border-color: var(--brand); color: var(--brand); }
button.primary, .btn-primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
button.primary:hover, .btn-primary:hover {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
  color: #fff;
  box-shadow: 0 4px 12px rgba(30,115,190,.3);
}
button.danger { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger:hover { background: #d63341; color: #fff; }
button.success { background: #16a34a; border-color: #16a34a; color: #fff; }
button.success:hover { background: #15803d; color: #fff; }

/* 结果展示区 */
.result-box {
  margin-top: 20px;
  padding: 20px;
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  min-height: 60px;
}
.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.result-item:last-child { border-bottom: none; }
.result-item .label { color: var(--text-2); font-size: 14px; }
.result-item .value { color: var(--text); font-weight: 600; font-size: 14px; }

/* 提示信息 */
.info-box {
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--brand-soft);
  border-left: 3px solid var(--brand);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.8;
}
.warn-box {
  margin-top: 16px;
  padding: 14px 18px;
  background: #fffbeb;
  border-left: 3px solid #f59e0b;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 13px;
  color: #92400e;
  line-height: 1.8;
}
[data-theme="dark"] .warn-box { background: #422006; color: #fcd34d; }

/* ---------- 7. 首页 ---------- */
.hero {
  background: linear-gradient(135deg, var(--brand-soft), #fff);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  margin-bottom: 28px;
  text-align: center;
}
[data-theme="dark"] .hero { background: linear-gradient(135deg, var(--brand-soft), var(--surface)); }
.hero h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
}
.hero p {
  font-size: 15px;
  color: var(--text-2);
  margin: 0 0 16px;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-stats span {
  font-size: 13px;
  color: var(--text-3);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 16px;
}

.category-section { margin-bottom: 32px; }
.category-section > h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--brand);
  display: inline-block;
}
.category-section .count {
  font-size: 13px;
  color: var(--text-3);
  font-weight: 400;
  margin-left: 6px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.tool-tile {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 14px;
  transition: all .25s var(--ease);
  position: relative;
  overflow: hidden;
}
.tool-tile:hover {
  border-color: var(--brand);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.tool-tile .tool-icon { font-size: 24px; margin-bottom: 8px; }
.tool-tile .tool-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tool-tile .tool-desc {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 8. 页脚 ---------- */
.footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  margin-top: 40px;
}
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 28px 32px 20px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand .logo-mark {
  display: grid; place-items: center;
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), #4a9be0);
  color: #fff; font-size: 18px; font-weight: 700;
}
.footer-name { font-size: 15px; font-weight: 700; color: var(--text); margin: 0; }
.footer-slogan { font-size: 12px; color: var(--text-3); margin: 2px 0 0; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a {
  font-size: 13px; color: var(--text-2);
  text-decoration: none; transition: color .2s;
}
.footer-links a:hover { color: var(--brand); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 14px 32px;
  text-align: center;
  font-size: 12px;
  color: var(--text-3);
}
.footer-bottom p { margin: 0; }

/* ---------- 9. Toast ---------- */
.toast {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--surface);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  z-index: 9999;
  box-shadow: var(--shadow);
  animation: toastIn .3s var(--ease);
}
@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ---------- 10. 响应式 ---------- */
@media (min-width: 1600px) {
  .tool-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
  .layout { grid-template-columns: 260px minmax(0, 1fr); }
  .sidebar { width: 260px; }
}
@media (max-width: 1024px) {
  .sidebar { width: 200px; }
  .layout { grid-template-columns: 200px minmax(0, 1fr); }
}
@media (max-width: 900px) {
  .menu-toggle { display: flex; }
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    top: 0; left: 0;
    width: 280px;
    height: 100vh;
    z-index: 200;
    transform: translateX(-100%);
    transition: transform .3s var(--ease);
    box-shadow: var(--shadow-hover);
    padding-top: 80px;
  }
  .sidebar.active { transform: translateX(0); }
  .search-box { width: 200px; }
  .breadcrumb { display: none; }
}
@media (max-width: 640px) {
  .footer-inner { flex-direction: column; align-items: center; text-align: center; }
  .footer-links { justify-content: center; }
  .hero { padding: 24px 16px; }
  .hero h1 { font-size: 22px; }
  .tool-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; }
  .tool-card { padding: 18px; }
  .form-row { grid-template-columns: 1fr; }
  .search-box { display: none; }
  .content { padding: 18px 14px 36px; }
  .page-title { font-size: 22px; }
  .page-title .title-icon { width: 36px; height: 36px; font-size: 20px; }
}



/* ---------- 收藏按钮 ---------- */
.page-header {
  position: relative;
}
.fav-btn {
  position: absolute;
  top: 20px;
  right: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--surface, #fff);
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-secondary, #6b7280);
  cursor: pointer;
  transition: all .2s;
}
.fav-btn:hover {
  border-color: #f59e0b;
  color: #f59e0b;
}
.fav-btn.favorited {
  background: #fffbeb;
  border-color: #f59e0b;
  color: #f59e0b;
}
.fav-btn .fav-icon {
  font-size: 16px;
}
@media (max-width: 640px) {
  .fav-btn {
    position: static;
    margin-top: 12px;
  }
}

/* ---------- 11. 联盟营销推荐 ---------- */
.cps-widget {
  background: var(--surface, #fff);
  border-radius: 12px;
  padding: 16px;
  margin: 16px 0;
  border: 1px solid var(--border, #e5e7eb);
}
.cps-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text, #14171b);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border, #e5e7eb);
}
.cps-icon { font-size: 16px; }
.cps-ad-tag {
  margin-left: auto;
  font-size: 10px;
  font-weight: 400;
  color: var(--text-secondary, #9ca3af);
  background: var(--bg, #f3f4f6);
  padding: 2px 6px;
  border-radius: 4px;
}
.cps-list { display: flex; flex-direction: column; gap: 10px; }
.cps-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: background .2s;
}
.cps-item:hover { background: var(--bg, #f9fafb); }
.cps-item-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: var(--bg, #f3f4f6);
  border-radius: 8px;
  flex-shrink: 0;
}
.cps-item-info { flex: 1; min-width: 0; }
.cps-item-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text, #14171b);
  display: flex;
  align-items: center;
  gap: 6px;
}
.cps-tag {
  font-size: 10px;
  font-weight: 400;
  color: #fff;
  background: var(--danger, #f1404b);
  padding: 1px 5px;
  border-radius: 3px;
}
.cps-item-desc {
  font-size: 11.5px;
  color: var(--text-secondary, #6b7280);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cps-item-price {
  font-size: 12px;
  font-weight: 600;
  color: var(--danger, #f1404b);
  white-space: nowrap;
  flex-shrink: 0;
}
@media (max-width: 640px) {
  .cps-widget { padding: 12px; }
  .cps-item { padding: 8px; }
  .cps-item-icon { width: 32px; height: 32px; font-size: 18px; }
  .cps-item-name { font-size: 12px; }
  .cps-item-desc { font-size: 11px; }
}


/* ============ 评分组件 ============ */
.rating-widget {
  background: var(--surface, #fff);
  border-radius: 12px;
  padding: 20px;
  margin: 20px 0;
  border: 1px solid var(--border, #e5e7eb);
}
.rw-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.rw-title { font-size: 15px; font-weight: 600; }
.rw-average { font-size: 13px; color: var(--text-secondary, #6b7280); }
.rw-average b { color: #f59e0b; font-size: 18px; }
.rw-stars { display: flex; gap: 6px; margin-bottom: 8px; }
.rw-star {
  font-size: 28px;
  cursor: pointer;
  color: #d1d5db;
  transition: color .15s, transform .15s;
  user-select: none;
}
.rw-star:hover { transform: scale(1.15); }
.rw-star.active { color: #f59e0b; }
.rw-tip { font-size: 12px; color: var(--text-secondary, #9ca3af); }

/* ============ 评论组件 ============ */
.comment-widget {
  background: var(--surface, #fff);
  border-radius: 12px;
  padding: 20px;
  margin: 20px 0;
  border: 1px solid var(--border, #e5e7eb);
}
.cw-header { font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.cw-count { font-size: 13px; font-weight: 400; color: var(--text-secondary, #9ca3af); }
.cw-input-area { margin-bottom: 20px; }
.cw-textarea {
  width: 100%;
  min-height: 80px;
  padding: 12px;
  border: 1px solid var(--border, #d1d5db);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
  box-sizing: border-box;
  background: var(--surface, #fff);
  color: var(--text, #14171b);
}
.cw-textarea:focus { outline: none; border-color: var(--brand, #1e73be); }
.cw-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
}
.cw-hint { font-size: 12px; color: var(--text-secondary, #9ca3af); }
.cw-submit {
  padding: 8px 20px;
  background: var(--brand, #1e73be);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
}
.cw-submit:hover { opacity: .9; }
.cw-list { display: flex; flex-direction: column; gap: 16px; }
.cw-empty { text-align: center; padding: 30px; color: var(--text-secondary, #9ca3af); font-size: 13px; }
.cw-item { display: flex; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid var(--border, #f3f4f6); }
.cw-item:last-child { border-bottom: none; }
.cw-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--brand, #1e73be);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
}
.cw-body { flex: 1; min-width: 0; }
.cw-meta { display: flex; gap: 10px; align-items: center; margin-bottom: 6px; }
.cw-nick { font-size: 13px; font-weight: 500; }
.cw-time { font-size: 11px; color: var(--text-secondary, #9ca3af); }
.cw-content { font-size: 14px; line-height: 1.6; color: var(--text, #14171b); word-break: break-word; }
.cw-item-actions { margin-top: 8px; }
.cw-like {
  font-size: 12px;
  color: var(--text-secondary, #6b7280);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: background .15s;
}
.cw-like:hover { background: var(--bg, #f3f4f6); }
.cw-more { text-align: center; margin-top: 16px; }
.cw-more button {
  padding: 8px 24px;
  background: transparent;
  border: 1px solid var(--border, #d1d5db);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary, #6b7280);
}
.cw-more button:hover { border-color: var(--brand, #1e73be); color: var(--brand, #1e73be); }
@media (max-width: 640px) {
  .rating-widget, .comment-widget { padding: 14px; }
  .rw-star { font-size: 24px; }
}

/* 相关工具推荐 */
.related-tools { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border,#e5e7eb); }
.related-title { font-size: 18px; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.related-item { display: flex; align-items: center; gap: 10px; padding: 12px 16px; background: var(--surface,#fff); border: 1px solid var(--border,#e5e7eb); border-radius: 10px; text-decoration: none; color: var(--text,#14171b); transition: all .2s; }
.related-item:hover { border-color: var(--brand,#1e73be); box-shadow: 0 4px 12px rgba(30,115,190,.1); transform: translateY(-2px); }
.related-icon { font-size: 20px; }
.related-name { font-size: 14px; font-weight: 500; }
@media (max-width: 900px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .related-grid { grid-template-columns: 1fr; } }

/* 分享按钮 */
.share-btn { position: absolute; top: 20px; right: 100px; padding: 8px 16px; background: var(--surface,#fff); border: 1px solid var(--border,#e5e7eb); border-radius: 20px; font-size: 13px; color: var(--text-secondary,#6b7280); cursor: pointer; transition: all .2s; }
.share-btn:hover { border-color: var(--brand,#1e73be); color: var(--brand,#1e73be); }
@media (max-width: 640px) { .share-btn { position: static; margin-top: 12px; margin-right: 8px; } }

/* 深色模式补充 - 新增组件 */
[data-theme="dark"] .hot-tools,
[data-theme="dark"] .related-item,
[data-theme="dark"] .search-result,
[data-theme="dark"] .blog-card,
[data-theme="dark"] .changelog-item,
[data-theme="dark"] .custom-card,
[data-theme="dark"] .admin-stats .stat-card,
[data-theme="dark"] .sub-item,
[data-theme="dark"] .comment-item {
  background: #1f2937;
  border-color: #374151;
}
[data-theme="dark"] .hot-tool-item,
[data-theme="dark"] .tut-section,
[data-theme="dark"] .api-stats,
[data-theme="dark"] .user-panel {
  background: #1f2937;
}
[data-theme="dark"] .hot-rank {
  background: #374151;
  color: #9ca3af;
}
[data-theme="dark"] .search-input-wrap input {
  background: #1f2937;
  color: #e5e7eb;
  border-color: #374151;
}
[data-theme="dark"] .highlight {
  background: #854d0e;
  color: #fef08a;
}
[data-theme="dark"] .article-content p,
[data-theme="dark"] .article-content li {
  color: #d1d5db;
}


/* ============ 补充响应式断点 ============ */

/* === 768px：平板竖屏，侧边栏已收起，内容区优化 === */
@media (max-width: 768px) {
  .content { padding: 16px 12px 32px; }
  .page-header { margin-bottom: 20px; }
  .page-title { font-size: 20px; }
  .page-desc { font-size: 13px; }
  .tool-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
  .tool-card { padding: 14px; }
  .tool-card .tool-icon { font-size: 24px; }
  .tool-card .tool-name { font-size: 13px; }
  .form-row { grid-template-columns: 1fr; gap: 12px; }
  .result-box { padding: 16px; }
  .result-box h3 { font-size: 15px; }
  .btn { padding: 10px 18px; font-size: 13px; }
  .btn-group { flex-wrap: wrap; }
  .hot-tools-grid { grid-template-columns: repeat(3, 1fr); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .rating-widget, .comment-widget { padding: 14px; }
  .rw-star { font-size: 24px; }
  .cps-grid { grid-template-columns: repeat(2, 1fr); }
  .search-box { width: 160px; }
  .gj-search input { height: 44px; font-size: 14px; }
  .gj-tip { font-size: 12px; }
  .category-header h2 { font-size: 18px; }
  .category-header .cat-icon { width: 34px; height: 34px; font-size: 18px; }
}

/* === 480px：中等手机 === */
@media (max-width: 480px) {
  .content { padding: 14px 10px 28px; }
  .page-title { font-size: 18px; }
  .page-title .title-icon { width: 32px; height: 32px; font-size: 18px; }
  .page-desc { font-size: 12px; }
  .tool-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .tool-card { padding: 12px; }
  .tool-card .tool-icon { font-size: 22px; margin-bottom: 6px; }
  .tool-card .tool-name { font-size: 12px; }
  .tool-card .tool-desc { display: none; }
  .hot-tools { padding: 14px 16px; }
  .hot-tools-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .hot-tool-item { padding: 8px 10px; font-size: 13px; }
  .hot-rank { width: 20px; height: 20px; font-size: 11px; }
  .related-grid { grid-template-columns: 1fr; gap: 8px; }
  .related-item { padding: 10px 12px; }
  .related-name { font-size: 13px; }
  .form-group label { font-size: 13px; }
  .form-group input, .form-group select, .form-group textarea {
    padding: 10px 12px; font-size: 14px;
  }
  .btn { padding: 10px 16px; font-size: 13px; }
  .btn-primary, .btn-secondary { width: 100%; }
  .result-box { padding: 14px; }
  .result-value { font-size: 20px; }
  .result-item { font-size: 13px; padding: 8px 0; }
  .rating-widget, .comment-widget { padding: 12px; }
  .rw-title { font-size: 14px; }
  .rw-star { font-size: 22px; }
  .comment-input { font-size: 13px; }
  .cps-grid { grid-template-columns: 1fr; }
  .share-btn { position: static; margin-top: 10px; }
  .gj-search input { height: 42px; font-size: 13px; padding: 0 14px; }
  .category-header { margin-bottom: 12px; padding-bottom: 10px; }
  .category-header h2 { font-size: 16px; }
  .footer-inner { padding: 24px 16px; }
  .footer-name { font-size: 15px; }
  .footer-slogan { font-size: 12px; }
  .footer-links { gap: 12px; }
  .footer-links a { font-size: 12px; }
}

/* === 400px：小屏手机（iPhone SE/X等） === */
@media (max-width: 400px) {
  .content { padding: 12px 8px 24px; }
  .page-title { font-size: 17px; }
  .page-title .title-icon { width: 30px; height: 30px; font-size: 16px; }
  .tool-grid { grid-template-columns: repeat(2, 1fr); gap: 6px; }
  .tool-card { padding: 10px; }
  .tool-card .tool-icon { font-size: 20px; }
  .tool-card .tool-name { font-size: 11.5px; }
  .hot-tools { padding: 12px 14px; }
  .hot-title { font-size: 16px; }
  .hot-tool-item { padding: 7px 8px; font-size: 12px; gap: 6px; }
  .hot-rank { width: 18px; height: 18px; font-size: 10px; }
  .related-item { padding: 8px 10px; }
  .related-icon { font-size: 18px; }
  .related-name { font-size: 12px; }
  .form-group input, .form-group select { padding: 9px 10px; font-size: 13px; }
  .btn { padding: 9px 14px; font-size: 12px; }
  .result-value { font-size: 18px; }
  .result-item { font-size: 12px; }
  .rw-star { font-size: 20px; }
  .gj-search input { height: 40px; font-size: 12px; }
  .category-header h2 { font-size: 15px; }
  .category-header .cat-icon { width: 30px; height: 30px; font-size: 16px; }
  .category-header .count { font-size: 11px; padding: 2px 8px; }
  .footer-links { gap: 10px; flex-wrap: wrap; justify-content: center; }
}

/* === 360px：极小屏（iPhone 5/SE1等） === */
@media (max-width: 360px) {
  .content { padding: 10px 8px 20px; }
  .page-title { font-size: 16px; }
  .page-desc { font-size: 11px; }
  .tool-grid { grid-template-columns: repeat(2, 1fr); gap: 5px; }
  .tool-card { padding: 8px; }
  .tool-card .tool-icon { font-size: 18px; margin-bottom: 4px; }
  .tool-card .tool-name { font-size: 11px; }
  .hot-tools { padding: 10px 12px; }
  .hot-tools-grid { gap: 6px; }
  .hot-tool-item { padding: 6px 8px; font-size: 11px; }
  .hot-rank { width: 16px; height: 16px; font-size: 9px; }
  .related-item { padding: 7px 8px; }
  .related-name { font-size: 11px; }
  .form-group label { font-size: 12px; }
  .form-group input, .form-group select { padding: 8px 10px; font-size: 12px; }
  .btn { padding: 8px 12px; font-size: 11px; }
  .result-box { padding: 10px; }
  .result-value { font-size: 16px; }
  .result-item { font-size: 11px; padding: 6px 0; }
  .rw-star { font-size: 18px; }
  .gj-search input { height: 38px; font-size: 12px; }
  .category-header h2 { font-size: 14px; }
  .footer-inner { padding: 20px 12px; }
  .footer-name { font-size: 14px; }
  .footer-links a { font-size: 11px; }
}