/* 工具软件替代品 CMS - 白色极简主题（支持亮暗切换） */
:root {
  --bg: #fafafa;
  --card: #ffffff;
  --fg: #18181b;
  --fg-muted: #71717a;
  --border: #e4e4e7;
  --primary: #2563eb;
  --primary-fg: #ffffff;
  --muted: #f4f4f5;
  --amber: #f59e0b;
  --ok: #16a34a;
  --danger: #dc2626;
  --radius: 12px;
}
.dark {
  --bg: #101014;
  --card: #17171d;
  --fg: #ececf0;
  --fg-muted: #a1a1ab;
  --border: #2b2b33;
  --primary: #5b8cff;
  --primary-fg: #ffffff;
  --muted: #1e1e26;
  --amber: #fbbf24;
  --ok: #4ade80;
  --danger: #f87171;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg); color: var(--fg);
  line-height: 1.6; font-size: 14px;
  transition: background .2s, color .2s;
}
a { color: inherit; text-decoration: none; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ===== 导航栏 ===== */
.navbar {
  position: sticky; top: 0; z-index: 50;
  background: var(--card); border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.nav-inner { display: flex; align-items: center; gap: 20px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-badge {
  width: 34px; height: 34px; border-radius: 10px; background: var(--primary); color: var(--primary-fg);
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 16px;
}
.brand-text { font-weight: 800; font-size: 16px; display: flex; flex-direction: column; line-height: 1.15; }
.brand-text small { font-size: 10px; color: var(--fg-muted); font-weight: 400; }
.nav-links { display: flex; gap: 16px; font-size: 13px; color: var(--fg-muted); }
.nav-links a:hover { color: var(--fg); }
.nav-search { display: flex; flex: 1; max-width: 280px; margin-left: auto; }
.nav-search input {
  flex: 1; height: 34px; border: 1px solid var(--border); border-right: none;
  border-radius: 8px 0 0 8px; padding: 0 12px; font-size: 12px; background: var(--muted); color: var(--fg); outline: none;
}
.nav-search input:focus { border-color: var(--primary); }
.nav-search button {
  height: 34px; padding: 0 14px; background: var(--primary); color: var(--primary-fg);
  border: none; border-radius: 0 8px 8px 0; font-size: 12px; cursor: pointer; font-weight: 600;
}
.nav-actions { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.nav-link { color: var(--fg-muted); }
.nav-link:hover { color: var(--primary); }
.nav-user { color: var(--fg); font-weight: 600; font-size: 12px; }
.theme-toggle {
  width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border); background: var(--card);
  color: var(--fg-muted); cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 14px;
  transition: all .15s;
}
.theme-toggle:hover { color: var(--primary); border-color: var(--primary); }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 9px 20px; border-radius: 10px;
  font-size: 13px; font-weight: 600; cursor: pointer; border: none; transition: all .15s;
}
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-primary:hover { filter: brightness(1.1); }
.btn-outline { background: var(--card); color: var(--fg); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 6px 14px; font-size: 12px; border-radius: 8px; }
.btn-danger { background: var(--danger); color: #fff; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

/* ===== 页头与筛选 ===== */
.page-header { padding: 32px 0 20px; }
.page-title { font-size: 24px; font-weight: 800; letter-spacing: -0.02em; }
.page-desc { color: var(--fg-muted); font-size: 13px; margin-top: 6px; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.chip {
  padding: 5px 14px; border-radius: 999px; border: 1px solid var(--border); background: var(--card);
  font-size: 12px; color: var(--fg-muted); cursor: pointer; transition: all .15s;
}
.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip.active { background: var(--primary); color: var(--primary-fg); border-color: var(--primary); font-weight: 600; }

/* ===== 工具卡片 ===== */
.tool-list { display: flex; flex-direction: column; gap: 12px; padding-bottom: 48px; }
.tool-card {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; transition: all .18s;
}
.tool-card:hover { border-color: var(--primary); box-shadow: 0 4px 16px rgba(37, 99, 235, .08); transform: translateY(-1px); }
.tool-main { display: flex; gap: 14px; min-width: 0; flex: 1; }
.tool-logo { width: 48px; height: 48px; border-radius: 12px; object-fit: cover; border: 1px solid var(--border); flex-shrink: 0; }
.tool-name { font-size: 15px; font-weight: 700; }
.tool-name:hover { color: var(--primary); }
.tool-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 4px; font-size: 12px; color: var(--fg-muted); }
.tag-badge { padding: 2px 8px; border-radius: 6px; background: var(--muted); font-size: 11px; }
.tag-badge.price-paid { color: var(--danger); background: color-mix(in srgb, var(--danger) 8%, transparent); }
.tag-badge.price-free { color: var(--ok); background: color-mix(in srgb, var(--ok) 8%, transparent); }
.rating { color: var(--amber); font-weight: 700; display: inline-flex; align-items: center; gap: 3px; }
.tool-desc { color: var(--fg-muted); font-size: 12px; margin-top: 6px; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.tool-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.fav-btn {
  width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--border); background: var(--card);
  color: var(--fg-muted); cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: 15px; transition: all .15s;
}
.fav-btn:hover { color: var(--amber); border-color: var(--amber); }
.fav-btn.on { color: var(--amber); border-color: var(--amber); background: color-mix(in srgb, var(--amber) 10%, transparent); }

/* ===== 详情页 ===== */
.detail-header { padding: 28px 0; border-bottom: 1px solid var(--border); }
.detail-header .tool-logo { width: 64px; height: 64px; }
.rate-exchange {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  background: var(--muted); border-radius: var(--radius); padding: 14px 16px; margin-top: 14px; font-size: 12px;
}
.rate-badge { padding: 4px 12px; border-radius: 8px; background: var(--card); border: 1px solid var(--border); font-weight: 600; }
.rate-badge.base { background: color-mix(in srgb, var(--primary) 10%, transparent); border-color: color-mix(in srgb, var(--primary) 30%, transparent); color: var(--primary); }

/* 对比矩阵表格 */
.matrix-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); margin: 20px 0; overflow: hidden; }
.matrix-head {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.matrix-title { font-size: 15px; font-weight: 700; }
.matrix-scroll { overflow-x: auto; }
table.matrix { width: 100%; border-collapse: collapse; font-size: 12.5px; min-width: 720px; }
table.matrix th {
  text-align: left; padding: 10px 14px; background: var(--muted); color: var(--fg-muted);
  font-size: 11.5px; white-space: nowrap; border-bottom: 1px solid var(--border);
}
table.matrix td { padding: 12px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
table.matrix tr:last-child td { border-bottom: none; }
table.matrix tr.main-row { background: color-mix(in srgb, var(--primary) 4%, transparent); }
table.matrix .col-name { font-weight: 700; white-space: nowrap; }
table.matrix .sticky-col { position: sticky; left: 0; background: var(--card); z-index: 2; }
table.matrix tr.main-row .sticky-col { background: color-mix(in srgb, var(--primary) 6%, var(--card)); }

/* 评价区 */
.review-item { border-top: 1px solid var(--border); padding: 14px 0; }
.review-item:first-child { border-top: none; }
.review-head { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--fg-muted); }
.review-content { font-size: 13px; margin-top: 6px; }

/* ===== 空状态 ===== */
.empty { text-align: center; padding: 64px 20px; color: var(--fg-muted); }
.empty-icon { font-size: 40px; margin-bottom: 12px; }

/* ===== 页脚 ===== */
.footer { border-top: 1px solid var(--border); background: var(--card); padding: 28px 0; text-align: center; color: var(--fg-muted); font-size: 12px; }
.footer-links { margin-top: 6px; }
.footer-links a:hover { color: var(--primary); }

/* ===== 响应式 ===== */
@media (max-width: 860px) {
  .nav-links, .nav-search { display: none; }
  .nav-inner { justify-content: space-between; }
  .tool-card { flex-direction: column; }
  .tool-actions { align-self: flex-end; }
  .detail-header { padding: 20px 0; }
}

/* ===== 语言切换下拉 ===== */
.lang-switch { position: relative; }
.lang-btn { display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 12px; border: 1px solid var(--border); border-radius: 999px; background: var(--card); color: var(--fg); font-size: 12px; font-weight: 600; cursor: pointer; white-space: nowrap; }
.lang-btn:hover { border-color: var(--primary); }
.lang-dot { width: 8px; height: 8px; border-radius: 50%; background: #dc2626; }
.lang-caret { font-size: 10px; color: var(--fg-muted); }
.lang-menu { display: none; position: absolute; right: 0; top: calc(100% + 8px); min-width: 150px; background: var(--card); border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,.12); padding: 6px; z-index: 100; }
.lang-switch.open .lang-menu { display: block; }
.lang-item { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 8px 10px; border-radius: 8px; font-size: 12.5px; color: var(--fg); text-decoration: none; cursor: pointer; }
.lang-item:hover { background: var(--bg); }
.lang-item.active { font-weight: 700; color: var(--primary); }
.lang-check { color: var(--primary); }

/* ===== 用户下拉菜单 ===== */
.nav-user-wrap { position: relative; }
.nav-user.has-menu { cursor: pointer; display: inline-flex; align-items: center; gap: 5px; padding: 5px 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--card); }
.nav-user.has-menu:hover { border-color: var(--primary); }
.nav-user-menu { display: none; position: absolute; right: 0; top: calc(100% + 8px); min-width: 170px; background: var(--card); border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,.12); padding: 6px; z-index: 110; }
.nav-user-wrap.open .nav-user-menu { display: block; }
.nav-user-item { display: block; padding: 9px 12px; border-radius: 8px; font-size: 12.5px; color: var(--fg); text-decoration: none; }
.nav-user-item:hover { background: var(--bg); }
.nav-user-logout { color: #dc2626; border-top: 1px dashed var(--border); margin-top: 4px; border-radius: 0 0 8px 8px; }

/* ===== 会员中心补充 ===== */
.center-tabs .chip { cursor: pointer; }