/* ============================================================
   我是产品经理 官网样式
   PC(≥1024px)：现代资讯网站  |  移动(<1024px)：仿小程序样式
   ============================================================ */

:root {
  --brand: #6B8AFF;
  --brand-dark: #4C6DF0;
  --brand-light: #EDF1FF;
  --ink: #1A1D29;
  --text: #4B5563;
  --muted: #9CA3AF;
  --line: #E5E7EB;
  --bg: #F5F6FA;
  --card: #FFFFFF;
  --radius: 14px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.06), 0 1px 4px rgba(0,0,0,.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.10), 0 4px 12px rgba(0,0,0,.06);
  --shadow-hover: 0 20px 48px rgba(107,138,255,.15), 0 8px 20px rgba(0,0,0,.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 20px; }

/* 品牌 Logo */
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-logo {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, #6B8AFF, #4C6DF0);
  color: #fff; font-weight: 800; font-size: 16px; letter-spacing: -0.5px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(107, 138, 255, .35);
  flex: none;
}
.brand-name { font-size: 20px; font-weight: 800; letter-spacing: .5px; }
.brand-name small { display: block; font-size: 11px; font-weight: 400; color: var(--muted); letter-spacing: 1px; }

/* ============================================================
   PC 顶栏
   ============================================================ */
.pc-nav {
  display: none;
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(229,231,235,.6);
}
.pc-nav-inner { display: flex; align-items: center; height: 60px; gap: 28px; }
.pc-nav-links { display: flex; align-items: center; gap: 2px; flex: 1; min-width: 0; }
.pc-nav-links a {
  padding: 7px 14px; border-radius: 8px;
  font-size: 15px; color: var(--text); white-space: nowrap;
  transition: all .2s;
}
.pc-nav-links a:hover { color: var(--brand); background: var(--brand-light); }
.pc-nav-links a.active { color: var(--brand-dark); background: var(--brand-light); font-weight: 600; }
.pc-nav-right { display: flex; align-items: center; gap: 14px; }
.search-box {
  display: flex; align-items: center; gap: 8px;
  background: #F1F3F8; border: 1px solid transparent;
  border-radius: 10px; padding: 0 12px; height: 38px; width: 220px;
  transition: all .2s;
}
.search-box:focus-within { background: #fff; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(107,138,255,.15); }
.search-box svg { width: 16px; height: 16px; color: var(--muted); flex: none; }
.search-box input { flex: 1; border: none; outline: none; background: transparent; font-size: 14px; color: var(--ink); min-width: 0; }
.btn-mini {
  background: linear-gradient(135deg, #6B8AFF, #4C6DF0);
  color: #fff; font-size: 14px; font-weight: 600;
  padding: 8px 18px; border-radius: 10px; white-space: nowrap;
  box-shadow: 0 4px 12px rgba(107,138,255,.3);
  transition: transform .2s, box-shadow .2s;
}
.btn-mini:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(107,138,255,.4); }

/* ============================================================
   移动端顶栏（仿小程序）
   ============================================================ */
.m-nav {
  display: block;
  position: sticky; top: 0; z-index: 100;
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.m-nav-top { display: flex; align-items: center; gap: 12px; padding: 10px 16px 8px; }
.m-brand { flex: 0 0 auto; display: flex; align-items: center; gap: 8px; }
.m-brand .brand-name { font-size: 18px; white-space: nowrap; }
.m-brand .brand-logo { width: 30px; height: 30px; border-radius: 8px; font-size: 13px; }
.m-search {
  display: flex; align-items: center; gap: 6px;
  background: #F1F3F8; border-radius: 999px;
  padding: 8px 18px; color: var(--muted); font-size: 13px;
  flex: 1; max-width: none; min-width: 0;
}
.m-search svg { width: 15px; height: 15px; }
.m-cat-tabs {
  display: flex; gap: 8px; overflow-x: auto;
  padding: 4px 16px 12px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.m-cat-tabs::-webkit-scrollbar { display: none; }
.m-cat-tab {
  flex: none; padding: 6px 16px; border-radius: 999px;
  font-size: 13px; color: var(--text); background: #F1F3F8;
  transition: all .2s; white-space: nowrap;
}
.m-cat-tab.active {
  background: linear-gradient(135deg, #6B8AFF, #4C6DF0);
  color: #fff; font-weight: 600;
  box-shadow: 0 4px 10px rgba(107,138,255,.35);
}

/* ============================================================
   PC 主体布局
   ============================================================ */
.pc-wrap { display: none; padding: 20px 0 48px; }
.pc-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; align-items: start; margin-top: 24px; }
.pc-content { min-width: 0; display: flex; flex-direction: column; gap: 32px; }

/* ---------- 通用标题 ---------- */
.block-title {
  display: flex; align-items: center; gap: 8px;
  font-size: 16px; font-weight: 700; color: var(--ink);
  margin-bottom: 4px;
}
.block-title .bar { width: 4px; height: 16px; border-radius: 2px; background: var(--brand); }
.block-title .bar-hot { background: #F97316; }
.block-title .bar-cat { background: #8B5CF6; }

.section-head {
  display: flex; align-items: center; gap: 12px; margin-bottom: 18px;
}
.section-title {
  display: flex; align-items: center; gap: 8px;
  font-size: 22px; font-weight: 800; color: var(--ink);
}
.section-title .bar { width: 5px; height: 20px; border-radius: 3px; background: linear-gradient(180deg, #6B8AFF, #4C6DF0); }
.section-sub { font-size: 13px; color: var(--muted); }

/* ---------- Hero 全宽沉浸式轮播 ---------- */
.hero { position: relative; border-radius: 18px; overflow: hidden; box-shadow: var(--shadow-md); }
.hero-slider { position: relative; height: 380px; overflow: hidden; }
.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease; cursor: pointer; }
.hero-slide.active { opacity: 1; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; }
.hero-slide .mask {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,.75));
}
.hero-slide .slide-caption {
  position: absolute; left: 32px; right: 200px; bottom: 28px; color: #fff;
}
.hero-slide .slide-tag {
  display: inline-block; font-size: 12px;
  background: rgba(107,138,255,.85); color: #fff;
  padding: 4px 14px; border-radius: 999px; margin-bottom: 12px;
  font-weight: 600; backdrop-filter: blur(4px);
}
.hero-slide h2 {
  font-size: 26px; font-weight: 700; line-height: 1.4;
  text-shadow: 0 2px 12px rgba(0,0,0,.4);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.hero-dots {
  position: absolute; right: 24px; bottom: 28px; display: flex; gap: 6px; z-index: 5;
}
.hero-dots i { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,.45); transition: all .3s; cursor: pointer; }
.hero-dots i.on { width: 24px; border-radius: 4px; background: #fff; }
.hero-prev, .hero-next {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 42px; height: 42px; border-radius: 50%;
  background: rgba(0,0,0,.3); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; z-index: 5; transition: all .2s;
  backdrop-filter: blur(4px);
}
.hero-prev { left: 16px; }
.hero-next { right: 16px; }
.hero-prev:hover, .hero-next:hover { background: rgba(0,0,0,.5); transform: translateY(-50%) scale(1.08); }

/* ---------- 快捷分类入口 ---------- */
.quick-cats {
  display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px;
}
.quick-cat {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 999px;
  background: var(--card); border: 1px solid var(--line);
  font-size: 14px; font-weight: 500; color: var(--text);
  cursor: pointer; transition: all .2s;
  box-shadow: var(--shadow-sm);
}
.quick-cat:hover { border-color: var(--brand); color: var(--brand-dark); box-shadow: 0 4px 14px rgba(107,138,255,.15); transform: translateY(-2px); }
.quick-cat .qc-dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.quick-cat .qc-count { font-size: 12px; color: var(--muted); }

/* ---------- 文章卡片网格 ---------- */
.article-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.article-card {
  background: var(--card); border-radius: 14px; overflow: hidden;
  box-shadow: var(--shadow-sm); cursor: pointer;
  transition: transform .3s, box-shadow .3s;
  display: flex; flex-direction: column;
}
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.article-card .ac-img {
  width: 100%; height: 180px; overflow: hidden; position: relative; background: #EEF0F6;
}
.article-card .ac-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.article-card:hover .ac-img img { transform: scale(1.06); }
.article-card .ac-tag {
  position: absolute; left: 12px; top: 12px;
  font-size: 11px; font-weight: 600; color: #fff;
  padding: 3px 12px; border-radius: 999px;
  backdrop-filter: blur(4px);
}
.article-card .ac-body { padding: 14px 16px 16px; flex: 1; display: flex; flex-direction: column; }
.article-card .ac-title {
  font-size: 16px; font-weight: 700; line-height: 1.5; color: var(--ink);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color .2s;
}
.article-card:hover .ac-title { color: var(--brand-dark); }
.article-card .ac-desc {
  font-size: 13px; color: var(--text); line-height: 1.6; margin-top: 6px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.article-card .ac-meta {
  display: flex; align-items: center; gap: 10px;
  margin-top: auto; padding-top: 10px;
  font-size: 12px; color: var(--muted);
}
.article-card .ac-meta .ac-author { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 50%; }
.article-card .ac-meta .ac-eye { display: flex; align-items: center; gap: 3px; flex: none; }
.article-card .ac-meta .ac-eye svg { width: 14px; height: 14px; }
.article-card .ac-meta .ac-date { margin-left: auto; }

/* 加载更多按钮 */
.load-more-btn {
  display: block; width: 100%; margin-top: 20px;
  padding: 14px; border-radius: 12px;
  background: var(--card); border: 1px solid var(--line);
  font-size: 15px; font-weight: 600; color: var(--text);
  transition: all .2s;
}
.load-more-btn:hover { border-color: var(--brand); color: var(--brand-dark); box-shadow: 0 4px 14px rgba(107,138,255,.12); }
.load-more-btn.hidden { display: none; }

/* ---------- 分类区块（紧凑现代风） ---------- */
.cat-section {
  background: var(--card); border-radius: 14px;
  padding: 22px 24px; box-shadow: var(--shadow-sm);
}
.cat-section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.cat-section-head .cat-name { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 800; }
.cat-section-head .cat-dot { width: 10px; height: 10px; border-radius: 3px; }
.cat-section-head .cat-desc { font-size: 12px; color: var(--muted); margin-left: 4px; font-weight: 400; }
.cat-more { font-size: 13px; color: var(--brand); display: flex; align-items: center; gap: 4px; transition: gap .2s; }
.cat-more:hover { color: var(--brand-dark); gap: 8px; }

/* 分类内部网格：1大图 + 4列表 */
.cat-grid { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 18px; }
.cat-feature { cursor: pointer; border-radius: 10px; overflow: hidden; }
.cat-feature .cf-img { height: 170px; overflow: hidden; border-radius: 10px; }
.cat-feature .cf-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.cat-feature:hover .cf-img img { transform: scale(1.05); }
.cat-feature h4 { font-size: 15px; line-height: 1.5; margin: 10px 0 4px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color .2s; }
.cat-feature:hover h4 { color: var(--brand); }
.cat-feature .cf-meta { font-size: 12px; color: var(--muted); }
.cat-list { display: flex; flex-direction: column; }
.cat-item {
  display: flex; gap: 12px; align-items: center;
  padding: 9px 4px; border-bottom: 1px dashed var(--line); cursor: pointer;
  transition: padding-left .2s;
}
.cat-item:last-child { border-bottom: none; }
.cat-item:hover { padding-left: 8px; }
.cat-item img { width: 90px; height: 60px; object-fit: cover; border-radius: 8px; flex: none; }
.cat-item .ci-body { flex: 1; min-width: 0; }
.cat-item .ci-title {
  font-size: 14px; line-height: 1.5; color: var(--ink);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color .2s;
}
.cat-item:hover .ci-title { color: var(--brand); }
.cat-item .ci-meta { font-size: 12px; color: var(--muted); margin-top: 3px; display: flex; gap: 10px; }

/* ---------- 侧边栏 ---------- */
.pc-sidebar { position: sticky; top: 80px; display: flex; flex-direction: column; gap: 20px; }
.side-card { background: var(--card); border-radius: 14px; padding: 20px 18px; box-shadow: var(--shadow-sm); }
.hot-list { margin-top: 8px; }
.hot-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 9px 2px; border-bottom: 1px dashed var(--line); cursor: pointer;
  transition: padding-left .2s;
}
.hot-item:last-child { border-bottom: none; }
.hot-item:hover { padding-left: 6px; }
.hot-item .rank {
  flex: none; width: 22px; height: 22px; border-radius: 6px;
  background: #F1F3F8; color: #9CA3AF;
  font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-top: 2px;
}
.hot-item:nth-child(1) .rank { background: linear-gradient(135deg, #FFB27A, #FF6B35); color: #fff; }
.hot-item:nth-child(2) .rank { background: linear-gradient(135deg, #FFD180, #FF9800); color: #fff; }
.hot-item:nth-child(3) .rank { background: linear-gradient(135deg, #FFE082, #FFC107); color: #fff; }
.hot-item .hot-title { font-size: 13px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color .2s; }
.hot-item:hover .hot-title { color: var(--brand); }
.hot-item .hot-meta { font-size: 11px; color: var(--muted); }
.side-cats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 10px; }
.side-cat {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 10px; border-radius: 10px; background: #F7F8FC;
  font-size: 13px; font-weight: 500; transition: all .2s; cursor: pointer;
}
.side-cat:hover { background: var(--brand-light); color: var(--brand-dark); }
.side-cat .sc-dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.side-cat .sc-count { margin-left: auto; font-size: 11px; color: var(--muted); }
.side-qr { text-align: center; padding: 22px 16px; }
.side-qr .qr-frame {
  width: 150px; height: 150px; margin: 0 auto 12px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  color: var(--brand); display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 6px;
}
.side-qr .qr-frame svg { width: 96px; height: 96px; }
.side-qr .qr-frame span { font-size: 12px; color: var(--muted); }
.side-qr p { font-size: 14px; }
.side-qr .qr-tip { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ============================================================
   移动端主体（仿小程序瀑布流）
   ============================================================ */
.m-wrap { display: block; padding-bottom: 40px; min-height: 60vh; }

.m-banner {
  position: relative; margin: 12px 12px 4px;
  border-radius: 16px; overflow: hidden; height: 172px;
}
.m-banner .m-b-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity .5s; cursor: pointer;
}
.m-banner .m-b-slide.active { opacity: 1; }
.m-banner .m-b-slide img { width: 100%; height: 100%; object-fit: cover; }
.m-banner .m-b-slide .m-b-mask {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 45%, rgba(0,0,0,.65));
}
.m-banner .m-b-slide .m-b-title {
  position: absolute; left: 16px; right: 16px; bottom: 14px;
  color: #fff; font-size: 16px; font-weight: 600; line-height: 1.45;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.m-banner .m-b-sub { position: absolute; right: 16px; bottom: 8px; font-size: 11px; color: rgba(255,255,255,.85); }
.m-banner .m-b-dots {
  position: absolute; right: 14px; top: 12px; display: flex; gap: 5px;
}
.m-banner .m-b-dots i { width: 6px; height: 6px; border-radius: 50%; background: rgba(255,255,255,.5); }
.m-banner .m-b-dots i.on { width: 16px; border-radius: 3px; background: #fff; }

.m-feed-title {
  display: flex; align-items: center; gap: 8px;
  margin: 14px 16px 10px; font-size: 16px; font-weight: 700;
}
.m-feed-title::before { content: ''; width: 4px; height: 16px; border-radius: 2px; background: var(--brand); }
.m-feed-title .m-feed-count { font-size: 12px; color: var(--muted); font-weight: 400; margin-left: auto; }

.m-feed { display: flex; gap: 12px; padding: 0 12px; align-items: flex-start; }
.m-col { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 12px; }

/* 瀑布流卡片（仿小程序 resource-card） */
.m-card {
  background: #fff; border-radius: 16px; overflow: hidden;
  box-shadow: 0 3px 12px rgba(17, 24, 39, .06);
  cursor: pointer; transition: transform .2s;
}
.m-card:active { transform: scale(.98); }
.m-card .mc-img { width: 100%; overflow: hidden; position: relative; background: #EEF0F6; }
.m-card .mc-img img { width: 100%; height: 100%; object-fit: cover; }
.m-card .mc-tag {
  position: absolute; left: 10px; top: 10px;
  font-size: 11px; color: #fff;
  background: rgba(17,24,39,.55); border-radius: 999px; padding: 3px 10px;
  backdrop-filter: blur(4px);
}
.m-card .mc-body { padding: 10px 12px 12px; }
.m-card .mc-title {
  font-size: 15px; font-weight: 600; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.m-card .mc-desc {
  font-size: 12px; color: var(--text); line-height: 1.55; margin-top: 6px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.m-card .mc-meta {
  display: flex; align-items: center; gap: 8px;
  margin-top: 10px; font-size: 12px; color: var(--muted);
}
.m-card .mc-meta .mc-author {
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  max-width: 46%; margin-left: auto;
}
.m-card .mc-eye { display: flex; align-items: center; gap: 3px; flex: none; }
.m-card .mc-eye svg { width: 13px; height: 13px; }

.m-loadmore {
  text-align: center; padding: 22px 0 8px;
  font-size: 13px; color: var(--muted);
}
.m-loadmore .spinner {
  display: inline-block; width: 18px; height: 18px;
  border: 2px solid #D6DDF5; border-top-color: var(--brand);
  border-radius: 50%; animation: spin .8s linear infinite;
  vertical-align: -4px; margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   底部
   ============================================================ */
.footer { background: #1E2635; color: #A6B0C3; font-size: 13px; }
.footer-inner { padding: 36px 20px; display: flex; flex-direction: column; gap: 18px; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 600; font-size: 15px; }
.footer-contact { display: flex; flex-wrap: wrap; gap: 10px 28px; }
.footer-contact a { color: #8FA3FF; }
.footer-contact a:hover { color: #fff; }
.footer-copy {
  display: flex; flex-wrap: wrap; gap: 8px 24px;
  border-top: 1px solid rgba(255,255,255,.08); padding-top: 16px;
  color: #7C8698;
}

/* ============================================================
   搜索弹层
   ============================================================ */
.search-mask {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(15, 23, 42, .55);
  display: none; align-items: center; justify-content: center;
  padding: 24px; backdrop-filter: blur(3px);
}
.search-mask.open { display: flex; }
.search-panel {
  background: #fff; border-radius: 18px; width: min(560px, 100%);
  max-height: 78vh; overflow-y: auto; box-shadow: 0 24px 60px rgba(0,0,0,.25);
  -webkit-overflow-scrolling: touch;
}
.search-head {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: #fff; z-index: 2;
}
.search-head > svg { width: 18px; height: 18px; color: var(--muted); flex: none; }
.search-head input {
  flex: 1; border: none; outline: none; font-size: 15px; min-width: 0;
}
.search-cancel { font-size: 14px; color: var(--muted); flex: none; padding: 6px; }
.search-cancel:hover { color: var(--ink); }
.search-results { padding: 8px 12px 16px; }
.search-empty { text-align: center; color: var(--muted); font-size: 14px; padding: 40px 0; }
.search-item {
  display: flex; gap: 12px; align-items: center;
  padding: 10px 6px; border-bottom: 1px dashed var(--line); cursor: pointer;
}
.search-item:last-child { border-bottom: none; }
.search-item img { width: 84px; height: 56px; object-fit: cover; border-radius: 8px; flex: none; }
.search-item .si-body { flex: 1; min-width: 0; }
.search-item .si-title { font-size: 14px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.search-item:hover .si-title { color: var(--brand); }
.search-item .si-meta { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* ============================================================
   响应式断点
   ============================================================ */
@media (min-width: 1024px) {
  .pc-nav { display: block; }
  .m-nav { display: none; }
  .pc-wrap { display: block; }
  .m-wrap { display: none; }
}
@media (min-width: 768px) and (max-width: 1023px) {
  /* 平板：保持移动布局但放宽 banner/卡片 */
  .m-banner { height: 200px; }
}