/* ============ 设计令牌（复刻 xdwdh.com 配色体系） ============ */
:root {
  /* 品牌色 */
  --brand: #1e73be;
  --brand-strong: #175d99;
  --brand-soft: #eaf2fb;
  --brand-ring: rgba(30, 115, 190, .28);
  --accent: #f1404b;          /* 推荐角标红 */
  --accent-soft: #ffecee;

  /* 中性色（浅色主题） */
  --bg: #f9f9f9;
  --bg-soft: #f1f4f8;
  --surface: #ffffff;
  --surface-2: #fbfcfd;
  --text: #14171b;
  --text-2: #5b6470;
  --text-3: #8a94a6;
  --border: #e9edf2;
  --border-strong: #d9e0e9;

  /* 尺寸与效果 */
  --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;
  --container: 1440px;
  --ease: cubic-bezier(.22, .61, .36, 1);
  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);
  color-scheme: dark;
}

/* ============ 基础 ============ */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
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; }
button { font-family: inherit; cursor: pointer; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--brand); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0; z-index: 999;
}
.skip-link:focus { left: 0; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 clamp(14px, 3vw, 32px); }

/* ============ 顶部导航栏 ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 2px rgba(20,23,27,.03);
  transition: background-color .3s var(--ease), border-color .3s var(--ease);
}
.header-inner {
  max-width: var(--container); margin: 0 auto; height: 100%;
  padding: 0 clamp(14px, 3vw, 32px);
  display: flex; align-items: center; gap: 24px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), #3b8fd4);
  color: #fff; font-weight: 800; font-size: 20px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px var(--brand-ring);
}
.logo-text strong { display: block; font-size: 17px; color: var(--text); line-height: 1.25; }
.logo-text small { display: block; font-size: 12px; color: var(--text-3); line-height: 1.3; }

.header-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }

.icon-btn {
  width: 38px; height: 38px; border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  display: flex; align-items: center; justify-content: center;
  transition: background-color .2s, border-color .2s, color .2s, transform .15s;
}
.icon-btn:hover { background: var(--bg-soft); border-color: var(--border-strong); color: var(--text); }
.icon-btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: none; }

.hamburger { display: none; flex-direction: column; gap: 4px; padding: 10px; }
.hamburger span { width: 18px; height: 2px; background: currentColor; border-radius: 2px; transition: transform .2s; }
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ============ 布局：快捷区跨两列 + 侧栏 + 主区 ============ */
.layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  max-width: var(--container);
  margin: 0 auto;
}

/* ---- 顶部快捷区（跨两列全宽） ---- */
.quicklinks {
  grid-column: 1 / -1;
  background: transparent;
  border-bottom: 1px solid var(--border);
  min-width: 0;
  padding-top: 12px;
}
.ql-row { display: flex; align-items: center; gap: 16px; padding: 6px 0; min-width: 0; }
.ql-row-main { flex-wrap: wrap; }

.ql-mini { display: flex; gap: 6px; flex-shrink: 0; }
.ql-mini-link {
  font-size: 13px; color: var(--text-2); padding: 3px 10px;
  border-radius: 6px; transition: color .2s, background .2s;
}
.ql-mini-link:hover { color: var(--brand); background: var(--brand-soft); }

.ql-search { display: flex; align-items: center; gap: 12px; flex: 1; min-width: 280px; flex-wrap: wrap; }
.ql-engines { display: flex; gap: 2px; flex-wrap: wrap; }
.ql-engine {
  font-size: 13px; padding: 5px 12px; border: none;
  background: transparent; color: var(--text-2);
  border-radius: 7px; transition: all .2s;
}
.ql-engine:hover { color: var(--brand); background: var(--brand-soft); }
.ql-engine.is-active { color: var(--brand); background: var(--brand-soft); font-weight: 600; }

.ql-form { display: flex; align-items: center; flex: 1; min-width: 240px; max-width: 520px; }
.ql-form input {
  flex: 1; height: 40px; padding: 0 14px;
  border: 1px solid var(--border-strong); border-radius: 10px 0 0 10px;
  background: var(--surface); color: var(--text); font-size: 14px; outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.ql-form input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-ring); }
.ql-go {
  height: 40px; padding: 0 18px; border: none;
  background: var(--brand); color: #fff; font-size: 14px; font-weight: 600;
  border-radius: 0 10px 10px 0;
  display: flex; align-items: center; gap: 6px;
  transition: background .2s;
}
.ql-go:hover { background: var(--brand-strong); }
.ql-go svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }

.ql-row-tags { flex-wrap: wrap; gap: 10px; padding-bottom: 10px; }
.ql-tag-label { font-size: 13px; color: var(--text-3); flex-shrink: 0; }
.ql-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.ql-tag {
  font-size: 12px; padding: 3px 10px; border-radius: 20px;
  background: var(--bg-soft); color: var(--text-2);
  border: 1px solid var(--border); transition: all .2s;
}
.ql-tag:hover { color: var(--brand); border-color: var(--brand); background: var(--brand-soft); }

/* ---- 左侧分类侧边栏 ---- */
.sidebar {
  position: static; align-self: start;
  padding: 22px clamp(14px, 3vw, 32px) 24px;
  border-right: 1px solid var(--border);
  background: var(--bg);
}
.sidebar-search { position: relative; margin-bottom: 16px; }
.sidebar-search input {
  width: 100%; height: 38px; padding: 0 32px 0 36px;
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--surface); color: var(--text); font-size: 13px; outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.sidebar-search input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-ring); }
.ss-icon {
  position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
  width: 16px; height: 16px; fill: none; stroke: var(--text-3); stroke-width: 1.8; stroke-linecap: round;
}
.ss-clear {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  width: 20px; height: 20px; border: none; background: var(--bg-soft);
  border-radius: 50%; color: var(--text-3); font-size: 14px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
}

.sidebar-nav { display: flex; flex-direction: column; gap: 2px; }
.side-nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; border-radius: 10px;
  color: var(--text-2); font-size: 14px;
  transition: all .2s; border: 1px solid transparent;
}
.side-nav-item:hover { color: var(--brand); background: var(--brand-soft); }
.side-nav-item.is-active { color: var(--brand); background: var(--brand-soft); font-weight: 600; }
.side-nav-item .sn-icon { font-size: 16px; width: 20px; text-align: center; }
.side-nav-item .sn-count {
  margin-left: auto; font-size: 11px; color: var(--text-3);
  background: var(--bg-soft); border-radius: 10px; padding: 1px 7px;
}
.side-nav-item:hover .sn-count, .side-nav-item.is-active .sn-count { background: #fff; }

/* ---- 主内容区 ---- */
main { min-width: 0; padding: 0 clamp(14px, 3vw, 32px) 40px; }

.widget-strip { margin: 16px 0 8px; }

/* 统计条 */
.stat-bar {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  padding: 12px 0 4px; margin-bottom: 8px;
}
.stat-chip {
  font-size: 12px; color: var(--text-2); background: var(--bg-soft);
  border: 1px solid var(--border); border-radius: 20px; padding: 4px 12px;
}
.stat-chip b { color: var(--brand); font-weight: 700; }

/* ---- 首页分类入口网格 ---- */
.cat-grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 8px;
}
.cat-entry {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); box-shadow: var(--shadow-sm);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.cat-entry:hover {
  transform: translateY(-2px);
  border-color: var(--brand);
  box-shadow: var(--shadow-hover);
}
.cat-entry .ce-icon {
  width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0;
  background: var(--brand-soft); color: var(--brand);
  display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.cat-entry .ce-body { min-width: 0; flex: 1; }
.cat-entry .ce-name { font-size: 15px; font-weight: 700; color: var(--text); display: flex; align-items: center; gap: 8px; }
.cat-entry .ce-count {
  font-size: 11px; font-weight: 400; color: var(--text-3);
  background: var(--bg-soft); border-radius: 10px; padding: 1px 8px; flex-shrink: 0;
}
.cat-entry .ce-desc {
  font-size: 12px; color: var(--text-2); margin-top: 3px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.cat-entry .ce-go { flex-shrink: 0; color: var(--text-3); font-size: 13px; transition: color .2s, transform .2s; }
.cat-entry:hover .ce-go { color: var(--brand); transform: translateX(3px); }

/* ---- 分类区块 ---- */
.category-list { display: flex; flex-direction: column; gap: 28px; }
.category-section { scroll-margin-top: calc(var(--header-h) + 16px); }
.section-head {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 14px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.section-title { font-size: 19px; margin: 0; display: flex; align-items: center; gap: 8px; }
.section-icon { font-size: 20px; }
.section-title .sec-count {
  font-size: 12px; font-weight: 400; color: var(--text-3);
  background: var(--bg-soft); border-radius: 10px; padding: 2px 9px;
}
.section-desc { font-size: 13px; color: var(--text-3); margin: 0; }
.view-all {
  margin-left: auto; font-size: 13px; color: var(--brand);
  padding: 4px 12px; border-radius: 20px; border: 1px solid var(--border);
  transition: all .2s; background: var(--surface);
}
.view-all:hover { background: var(--brand-soft); border-color: var(--brand); }

/* tabs */
.tab-bar { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.tab-btn {
  font-size: 13px; padding: 5px 13px; border-radius: 20px;
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text-2); transition: all .2s;
}
.tab-btn:hover { color: var(--brand); border-color: var(--brand); }
.tab-btn.is-active { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
.tab-btn .tab-n {
  font-size: 11px; opacity: .75; margin-left: 3px;
}

/* 卡片网格 */
.card-grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  align-items: stretch;
}
.site-card {
  position: relative;
  display: flex; gap: 12px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease),
              border-color .22s var(--ease), background-color .3s var(--ease);
  height: 100%;
  min-height: 96px;
}
.site-card:hover {
  transform: translateY(-2px);
  border-color: var(--brand);
  box-shadow: var(--shadow-hover);
  background: var(--surface-2);
}
.site-ico {
  width: 42px; height: 42px; border-radius: 10px; flex-shrink: 0;
  background: var(--bg-soft); color: var(--brand);
  display: flex; align-items: center; justify-content: center;
  font-size: 19px; font-weight: 700; overflow: hidden;
  border: 1px solid var(--border);
}
.site-ico img { width: 100%; height: 100%; object-fit: contain; }
.site-body { min-width: 0; display: flex; flex-direction: column; }
.site-name { font-size: 14px; font-weight: 600; color: var(--text); line-height: 1.35; }
.site-name .badge {
  display: inline-block; font-size: 10px; font-weight: 600;
  background: var(--accent); color: #fff; border-radius: 4px; padding: 1px 5px;
  margin-left: 5px; vertical-align: 1px;
}
.site-desc {
  font-size: 12px; color: var(--text-2); line-height: 1.5; margin-top: 4px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.site-cat {
  margin-top: auto; padding-top: 6px; font-size: 11px; color: var(--text-3);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.site-card.no-link { cursor: default; opacity: .75; }
.site-card.no-link:hover { transform: none; border-color: var(--border); box-shadow: var(--shadow-sm); }

/* 加载更多 */
.load-more-wrap { display: flex; justify-content: center; margin-top: 16px; }
.load-more {
  padding: 8px 28px; border-radius: 20px; font-size: 13px;
  border: 1px solid var(--border-strong); background: var(--surface);
  color: var(--text-2); transition: all .2s;
}
.load-more:hover { color: var(--brand); border-color: var(--brand); background: var(--brand-soft); }

/* 搜索结果区 */
.search-result-section .card-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
.btn-reset {
  margin-left: auto; padding: 6px 16px; border-radius: 8px; font-size: 13px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text-2);
  transition: all .2s;
}
.btn-reset:hover { color: var(--brand); border-color: var(--brand); }
.result-count { font-size: 13px; color: var(--text-3); font-weight: 400; margin-left: 6px; }
.empty-tip { color: var(--text-3); text-align: center; padding: 40px 0; font-size: 14px; }
.link-btn { background: none; border: none; color: var(--brand); font-size: 14px; padding: 0; }

/* 面包屑 */
.breadcrumb { font-size: 13px; color: var(--text-3); padding: 14px 0 2px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.breadcrumb a { color: var(--text-2); }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb .sep { color: var(--text-3); opacity: .6; }

/* 分类页内子分类快速锚点条 */
.subcat-strip { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.subcat-chip {
  font-size: 12px; padding: 4px 12px; border-radius: 20px;
  background: var(--bg-soft); color: var(--text-2);
  border: 1px solid var(--border); transition: all .2s;
}
.subcat-chip:hover { color: var(--brand); border-color: var(--brand); background: var(--brand-soft); }

/* ---- 页脚 ---- */
.site-footer { border-top: 1px solid var(--border); background: var(--surface); margin-top: 20px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 24px clamp(14px,3vw,32px); flex-wrap: wrap; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-name { font-weight: 700; font-size: 15px; margin: 0; }
.footer-slogan { font-size: 12px; color: var(--text-3); margin: 2px 0 0; }
.footer-bottom { border-top: 1px solid var(--border); padding: 14px clamp(14px,3vw,32px); text-align: center; font-size: 12px; color: var(--text-3); }

/* 返回顶部 */
.back-to-top {
  position: fixed; right: 24px; bottom: 30px; z-index: 90;
  width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--border-strong); background: var(--surface);
  color: var(--text-2); box-shadow: var(--shadow);
  display: flex; align-items: center; justify-content: center;
  transition: all .2s; opacity: 0; visibility: hidden; transform: translateY(8px);
}
.back-to-top.show { opacity: 1; visibility: visible; transform: none; }
.back-to-top:hover { color: var(--brand); border-color: var(--brand); }
.back-to-top svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* 移动端抽屉 */
.drawer-mask {
  position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 190;
  opacity: 0; transition: opacity .25s; pointer-events: none;
}
.drawer-mask.show { opacity: 1; pointer-events: auto; }
.drawer {
  position: fixed; top: 0; left: 0; bottom: 0; width: 280px; z-index: 200;
  background: var(--surface); transform: translateX(-100%); transition: transform .28s var(--ease);
  overflow-y: auto; padding: 16px;
}
.drawer.open { transform: none; }
.drawer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.drawer-title { font-weight: 700; font-size: 16px; }
.drawer-nav .side-nav-item { padding: 10px 12px; }

/* ============ 响应式 ============ */
@media (max-width: 1400px) {
  .card-grid { grid-template-columns: repeat(5, minmax(0,1fr)); }
}
@media (max-width: 1200px) {
  .layout { grid-template-columns: 210px minmax(0,1fr); }
  .card-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .cat-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 992px) {
  .sidebar { display: none; }
  .layout { grid-template-columns: 1fr; }
  .hamburger { display: flex; }
  .card-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .cat-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .search-result-section .card-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
}
@media (max-width: 640px) {
  .card-grid, .search-result-section .card-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .cat-grid { grid-template-columns: 1fr; }
  .ql-engines { display: none; }
  .logo-text small { display: none; }
}

/* ============ Preview 内页（复刻 xdwdh preview） ============ */
.pv-topbar {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.pv-topbar-inner { display: flex; align-items: center; height: 100%; }
.pv-brand { display: flex; align-items: center; gap: 10px; }
.pv-brand-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), #3b8fd4);
  color: #fff; font-weight: 800; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px var(--brand-ring);
}
.pv-brand-text strong { display: block; font-size: 17px; color: var(--text); line-height: 1.25; }
.pv-brand-text small { display: block; font-size: 12px; color: var(--text-3); line-height: 1.3; }

.pv-main { padding-top: 8px; padding-bottom: 48px; }
.pv-breadcrumb { font-size: 13px; color: var(--text-3); padding: 14px 0 18px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.pv-crumb { color: var(--text-2); }
.pv-crumb:hover { color: var(--brand); }
.pv-crumb-sep { color: var(--text-3); opacity: .6; }
.pv-crumb-cur { color: var(--brand); font-weight: 600; }

.pv-grid { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 24px; align-items: start; }
@media (max-width: 992px) { .pv-grid { grid-template-columns: 1fr; } .pv-side { display: none; } }

.pv-main-col { display: flex; flex-direction: column; gap: 20px; min-width: 0; }

.pv-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 24px; }

.pv-hero { display: flex; gap: 18px; align-items: flex-start; flex-wrap: wrap; }
.pv-hero-icon {
  width: 64px; height: 64px; border-radius: 16px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px; font-weight: 800; color: #fff; overflow: hidden;
  box-shadow: var(--shadow);
}
.pv-hero-icon img { width: 100%; height: 100%; object-fit: contain; }
.pv-hero-info { flex: 1; min-width: 240px; }
.pv-name { font-size: 24px; margin: 0 0 8px; color: var(--text); line-height: 1.3; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.pv-badge { font-size: 11px; font-weight: 600; background: var(--accent); color: #fff; border-radius: 5px; padding: 2px 7px; }
.pv-desc { font-size: 14px; color: var(--text-2); margin: 0; line-height: 1.7; }
.pv-hero-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.pv-btn-primary {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 11px 26px; border-radius: 12px;
  background: var(--brand); color: #fff; font-size: 15px; font-weight: 700;
  transition: background .2s, transform .15s;
}
.pv-btn-primary:hover { background: var(--brand-strong); transform: translateY(-1px); }
.pv-btn-ghost {
  padding: 10px 18px; border-radius: 12px; font-size: 13px;
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--text-2);
  transition: all .2s;
}
.pv-btn-ghost:hover { color: var(--brand); border-color: var(--brand); background: var(--brand-soft); }

.pv-kwbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.pv-tag {
  font-size: 12px; padding: 4px 12px; border-radius: 20px;
  background: var(--bg-soft); color: var(--text-2);
  border: 1px solid var(--border);
}
a.pv-tag { transition: all .2s; }
a.pv-tag:hover { color: var(--brand); border-color: var(--brand); background: var(--brand-soft); }
.pv-tag-url { color: var(--brand); border-color: var(--brand); background: var(--brand-soft); font-weight: 600; word-break: break-all; }

.pv-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.pv-action-btn {
  padding: 7px 14px; border-radius: 10px; font-size: 13px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text-2);
  transition: all .2s;
}
.pv-action-btn:hover { color: var(--brand); border-color: var(--brand); background: var(--brand-soft); }

.pv-section-title { font-size: 16px; margin: 0 0 12px; color: var(--text); display: flex; align-items: center; gap: 8px; }
.pv-intro-title { font-size: 16px; margin: 0 0 10px; color: var(--text); }
.pv-intro-text { font-size: 14px; color: var(--text-2); line-height: 1.8; margin: 0; }
.pv-intro-features { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.pv-intro-feature { font-size: 12px; color: var(--text-2); background: var(--bg-soft); border: 1px solid var(--border); border-radius: 20px; padding: 4px 12px; }
.pv-intro-feature .pv-f-icon { color: var(--brand); font-weight: 700; }

.pv-related-grid { display: grid; gap: 12px; grid-template-columns: repeat(3, minmax(0,1fr)); }
@media (max-width: 1200px) { .pv-related-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 640px) { .pv-related-grid { grid-template-columns: 1fr; } }

.pv-bottom-links { display: flex; gap: 10px; flex-wrap: wrap; }
.pv-bottom-link { font-size: 13px; color: var(--text-2); padding: 7px 16px; border-radius: 10px; border: 1px solid var(--border); transition: all .2s; }
.pv-bottom-link:hover { color: var(--brand); border-color: var(--brand); background: var(--brand-soft); }

/* Preview 右侧栏 */
.pv-side { display: flex; flex-direction: column; gap: 20px; }
.pv-side-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 20px; }
.pv-side-title { font-size: 15px; font-weight: 700; margin: 0 0 14px; color: var(--text); }
.pv-side-hot-list { display: flex; flex-direction: column; gap: 4px; }
.pv-hot-item {
  display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 10px;
  color: var(--text-2); font-size: 13px; transition: all .2s;
}
.pv-hot-item:hover { color: var(--brand); background: var(--brand-soft); }
.pv-hot-num { width: 20px; height: 20px; border-radius: 6px; background: var(--bg-soft); color: var(--text-3); font-size: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.pv-hot-item:nth-child(-n+3) .pv-hot-num { background: var(--accent); color: #fff; }
.pv-hot-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.pv-footer { border-top: 1px solid var(--border); background: var(--surface); padding: 20px clamp(14px,3vw,32px); text-align: center; font-size: 12px; color: var(--text-3); }

/* 动画 */
@keyframes cardIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}