/* ==========================================================================
   DTALK PRO — Executive-Grade Visual System
   为「企业管理者的数据分析决策和数字化战略顾问」品牌打造的高端视觉语言
   目标：国际化头部咨询公司质感（麦肯锡 / BCG 级别的克制与力量感）
   实际适配主题真实 DOM 结构（module builder：.wpcom-modules / .post-item / .sec-title-wrap 等）
   ========================================================================== */

:root {
  --dk-navy-950: #05070f;
  --dk-navy-900: #0a0e1a;
  --dk-navy-800: #0f1526;
  --dk-navy-700: #161d33;
  --dk-blue-500: #2563eb;
  --dk-blue-400: #3b82f6;
  --dk-indigo-500: #6366f1;
  --dk-cyan-400: #22d3ee;
  --dk-gold-400: #d4af6a;
  --dk-gold-500: #b8873f;
  --dk-ink-900: #0b1120;
  --dk-ink-700: #334155;
  --dk-ink-500: #64748b;
  --dk-line: rgba(15, 23, 42, 0.08);
  --dk-radius-xl: 24px;
  --dk-radius-lg: 18px;
  --dk-radius-md: 12px;
  --dk-gradient-brand: linear-gradient(120deg, #0a0e1a 0%, #131b34 45%, #0d2340 100%);
  --dk-gradient-accent: linear-gradient(120deg, #3b82f6 0%, #6366f1 55%, #22d3ee 100%);
  --dk-gradient-gold: linear-gradient(120deg, #f3d9a4 0%, #d4af6a 50%, #b8873f 100%);
  --dk-shadow-lift: 0 30px 60px -20px rgba(10, 14, 26, 0.35);
  --dk-shadow-soft: 0 12px 32px -12px rgba(15, 23, 42, 0.12);
}

/* --------------------------------------------------------------------------
   0. Top Prestige Bar + Base Typography
   -------------------------------------------------------------------------- */
body::before {
  content: "";
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--dk-gradient-accent);
  z-index: 10000;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", Roboto, sans-serif !important;
  color: var(--dk-ink-900);
  background: #ffffff !important;
  -webkit-font-smoothing: antialiased;
  line-height: 1.75;
}

::selection { background: var(--dk-blue-500); color: #fff; }

/* 全站范围去除点击时的默认系统焦点框 / 移动端默认右侧 tap-highlight 高亮框（之前只处理了导航链接，
   搜索图标、标题等其他可点击元素仍会出现链接/默认高亮）；
   保留 :focus-visible 以兼顾键盘导航可访问性 */
* {
  -webkit-tap-highlight-color: transparent;
}
a, button, input, select, textarea, summary, [role="button"] {
  outline: none !important;
}
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible, summary:focus-visible, [role="button"]:focus-visible {
  outline: 2px solid var(--dk-blue-500) !important;
  outline-offset: 2px;
  border-radius: 4px;
}

/* --------------------------------------------------------------------------
   1. Header / Navigation — refined glass bar with bolder brand presence
   -------------------------------------------------------------------------- */
.header {
  position: sticky !important;
  top: 0;
  z-index: 999;
  background: rgba(255, 255, 255, 0.85) !important;
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid var(--dk-line) !important;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04) !important;
  transition: all 0.3s ease;
}

/* 主题原本假设 header 是 position:fixed，因此在 #wrap 上预留了 80px/60px 的
   顶部占位空间；现在 header 改为 sticky（占据正常文档流），这段预留空间会
   变成一块多余的空白，必须清零 */
body.header-fixed #wrap {
  padding-top: 0 !important;
}

.header-wrap {
  align-items: center !important;
  min-height: 64px;
}

.navbar-header,
.logo {
  height: 64px !important;
  align-items: center !important;
  display: flex !important;
}

.logo a {
  display: flex !important;
  align-items: center !important;
  height: 100%;
}

.logo img {
  max-height: 32px !important;
  width: auto;
  transition: transform 0.3s ease;
}
.logo a:hover img { transform: scale(1.03); }

/* 以下桌面导航栏样式仅限桌面断点生效（与主题自己的移动端断点 max-width:1024px 对齐）。
   之前在没有 media query 限制的情况下对 .main-menu 强制 display:flex，
   在移动端把本应该垂直堆叠的抽屉式菜单挤成一条无法换行的横向行，导致整个移动端菜单彻底错乱 */
@media (min-width: 1025px) {
  .main-menu { display: flex !important; align-items: center !important; }

  .main-menu > li > a {
    font-weight: 600 !important;
    font-size: 14px !important;
    letter-spacing: 0.01em;
    line-height: 1 !important;
    color: var(--dk-ink-900) !important;
    padding: 10px 16px !important;
    position: relative;
    transition: color 0.25s ease !important;
  }

  .main-menu > li > a::after {
    content: "";
    position: absolute;
    bottom: 4px; left: 50%;
    width: 0; height: 2px;
    background: var(--dk-gradient-accent);
    border-radius: 2px;
    transform: translateX(-50%);
    transition: width 0.3s ease;
  }
  .main-menu > li:hover > a::after,
  .main-menu > li.active > a::after { width: 56%; }
}

.main-menu > li > a:hover,
.main-menu > li.active > a,
.main-menu > li.current-menu-item > a {
  color: var(--dk-blue-500) !important;
}

.main-menu .sub-menu,
.main-menu .dropdown-menu {
  background: rgba(10, 14, 26, 0.97) !important;
  backdrop-filter: blur(24px) !important;
  border-radius: var(--dk-radius-md) !important;
  border: 1px solid rgba(255, 255, 255, 0.08) !important;
  box-shadow: var(--dk-shadow-lift) !important;
  padding: 10px 0 !important;
  overflow: hidden;
}

.main-menu .sub-menu li a,
.main-menu .dropdown-menu li a {
  font-size: 13.5px !important;
  font-weight: 500 !important;
  line-height: 1.4 !important;
  color: #cbd5e1 !important;
  padding: 11px 22px !important;
  transition: all 0.2s ease !important;
  border: none !important;
}
.main-menu .sub-menu li a:hover,
.main-menu .dropdown-menu li a:hover {
  background: rgba(59, 130, 246, 0.12) !important;
  color: #ffffff !important;
  padding-left: 26px !important;
}

@media (max-width: 1024px) {
  .navbar-menu {
    background: var(--dk-navy-900) !important;
    border: 0 !important;
    box-shadow: 18px 0 48px rgba(5, 7, 15, 0.24) !important;
    height: 100vh !important;
    height: 100dvh !important;
    overflow-y: auto !important;
  }

  .main-menu > li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
  }

  .main-menu > li > a {
    color: #e2e8f0 !important;
    font-weight: 600 !important;
    padding: 13px 24px !important;
  }

  .main-menu > li > a .menu-item-image {
    display: none !important;
  }

  .main-menu > li > a:hover,
  .main-menu > li.active > a,
  .main-menu > li.current-menu-item > a {
    color: #ffffff !important;
    background: rgba(59, 130, 246, 0.14) !important;
  }

  .main-menu .sub-menu,
  .main-menu .dropdown-menu {
    position: static !important;
    width: 100% !important;
    margin: 0 !important;
    border: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    background: rgba(5, 7, 15, 0.4) !important;
  }

  .navbar-menu .navbar-action {
    border-top: 1px solid rgba(255, 255, 255, 0.08) !important;
  }
}

/* --------------------------------------------------------------------------
   2. Hero Section (#modules-28) — dark executive banner treatment
   -------------------------------------------------------------------------- */
#modules-28.modules-gird {
  position: relative;
  background: var(--dk-gradient-brand) !important;
  /* 全宽出血，避免「白底里嵌一个黑色圆角盒子」的贴纸既视感 */
  width: 100vw !important;
  max-width: 100vw !important;
  margin-left: calc(50% - 50vw) !important;
  margin-right: calc(50% - 50vw) !important;
  padding: 64px 0 !important;
  margin-bottom: 56px;
  overflow: hidden;
}

/* row 内容本身仍限制在标准阅读宽度内，只有背景色出血到全宽 */
#modules-28.modules-gird > .row {
  max-width: 1200px;
  margin-left: auto !important;
  margin-right: auto !important;
  padding-left: 15px;
  padding-right: 15px;
  display: flex !important;
  flex-wrap: wrap;
  align-items: center !important;
}

/* 文字/图片列比例重新分配，让图片更大、更有存在感 */
@media (min-width: 992px) {
  #modules-28 .col-md-16 { width: 54% !important; }
  #modules-28 .col-md-8 { width: 46% !important; }
}

#modules-28.modules-gird::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 50% 60% at 10% 0%, rgba(59, 130, 246, 0.28) 0%, transparent 60%),
    radial-gradient(ellipse 45% 55% at 95% 100%, rgba(34, 211, 238, 0.16) 0%, transparent 60%);
  pointer-events: none;
}

#modules-28 .modules-text,
#modules-28 .modules-image { position: relative; z-index: 1; }

#modules-28 .modules-text h1,
#modules-28 .modules-text h1 span {
  color: #f8fafc !important;
  font-size: 2.1em !important;
  font-weight: 700 !important;
  letter-spacing: -0.015em !important;
  line-height: 1.4 !important;
}

#modules-28 .modules-text h2,
#modules-28 .modules-text h2 span {
  color: #a8b3cc !important;
  font-weight: 400 !important;
  font-size: 1em !important;
  line-height: 1.8 !important;
}

#modules-28 .modules-text p,
#modules-28 .modules-text p span {
  color: #7c87a3 !important;
  font-size: 14.5px !important;
}

#modules-28 .modules-text p a {
  color: var(--dk-cyan-400) !important;
  font-weight: 600 !important;
  border-bottom: 1px solid rgba(34, 211, 238, 0.35);
  transition: border-color 0.2s ease;
}
#modules-28 .modules-text p a:hover { border-color: var(--dk-cyan-400); }

/* 图片不再是一张“贴在白底上的卡片”，而是更大、与深色背景自然渐变融合的视觉元素 */
#modules-28 .modules-image {
  display: flex;
  align-items: center;
}

#modules-28 .modules-image-inner {
  position: relative;
  border-radius: var(--dk-radius-lg);
  overflow: hidden;
  box-shadow: none !important;
  transform: scale(1.14);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
#modules-28 .modules-image-inner:hover { transform: scale(1.17); }

#modules-28 .modules-image-inner img {
  -webkit-mask-image: linear-gradient(to left, rgba(0, 0, 0, 1) 60%, rgba(0, 0, 0, 0) 100%);
  mask-image: linear-gradient(to left, rgba(0, 0, 0, 1) 60%, rgba(0, 0, 0, 0) 100%);
}

@media (min-width: 992px) {
  #modules-28 .modules-image {
    margin-right: -70px;
  }
}

/* --------------------------------------------------------------------------
   3. Section Titles — bold, centered, kicker-style dividers
   -------------------------------------------------------------------------- */
.sec-title-wrap {
  display: flex !important;
  flex-direction: column-reverse;
  align-items: center;
  gap: 10px;
  text-align: center;
  margin-bottom: 8px;
}

.sec-title-wrap h2 {
  font-size: 2em !important;
  font-weight: 800 !important;
  letter-spacing: -0.01em !important;
  color: var(--dk-ink-900) !important;
  position: relative;
  padding-bottom: 20px;
  margin: 0 !important;
}

.sec-title-wrap h2::after {
  content: "";
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 64px; height: 4px;
  border-radius: 4px;
  background: var(--dk-gradient-accent);
}

.sec-title-wrap span {
  display: inline-block;
  font-size: 12.5px !important;
  font-weight: 700 !important;
  letter-spacing: 0.14em !important;
  text-transform: uppercase;
  color: var(--dk-blue-500) !important;
  background: rgba(59, 130, 246, 0.08);
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid rgba(59, 130, 246, 0.18);
}

.sec-title-0 { margin-top: 12px; }

/* --------------------------------------------------------------------------
   4. Body Content Blocks — refined executive typography
   -------------------------------------------------------------------------- */
.modules-text h3 {
  font-size: 1.2em !important;
  font-weight: 700 !important;
  color: var(--dk-ink-900) !important;
}

.modules-text p,
.modules-text p span:not([style*="font-size"]) {
  color: var(--dk-ink-700) !important;
}

.modules-text strong { color: var(--dk-ink-900) !important; font-weight: 700 !important; }

.modules-text a:not(.zixun) {
  color: var(--dk-blue-500) !important;
  font-weight: 600 !important;
  text-decoration: none !important;
}
.modules-text a:not(.zixun):hover { text-decoration: underline !important; }

.modules-image img,
.modules-image-inner img {
  border-radius: var(--dk-radius-md) !important;
  box-shadow: var(--dk-shadow-soft) !important;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease !important;
}
.modules-image:hover img,
.modules-image-inner:hover img {
  transform: translateY(-4px) scale(1.015) !important;
  box-shadow: var(--dk-shadow-lift) !important;
}

/* --------------------------------------------------------------------------
   5. CTA Buttons — premium gradient pill
   -------------------------------------------------------------------------- */
.gk .zixun {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  width: auto !important;
  min-width: 190px;
  height: 50px !important;
  padding: 0 30px;
  background: var(--dk-gradient-accent) !important;
  color: #ffffff !important;
  font-weight: 700 !important;
  font-size: 15px !important;
  border-radius: 999px !important;
  box-shadow: 0 14px 30px -8px rgba(37, 99, 235, 0.45) !important;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
  margin-left: 0 !important;
}
.gk .zixun:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px -8px rgba(37, 99, 235, 0.55) !important;
}

.wpcom-btn.more-link,
.module-more .more-link {
  display: inline-flex !important;
  align-items: center;
  gap: 6px;
  background: var(--dk-ink-900) !important;
  color: #ffffff !important;
  font-weight: 600 !important;
  padding: 12px 26px !important;
  border-radius: 999px !important;
  border: none !important;
  transition: all 0.3s ease !important;
}
.wpcom-btn.more-link:hover {
  background: var(--dk-blue-500) !important;
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   6. Article / Insight Cards (.post-item) — the "Dtalk学院" grid
   -------------------------------------------------------------------------- */
/* 注意：主题的列宽公式是 calc(25% - var(--theme-post-item-gap)*3/4)，
   gap 本身也读取同一个变量。之前直接覆盖 gap:28px 导致宽度公式与实际间距不匹配，
   4 列内容撑爆容器宽度被迫换行成 3 列，右侧留出一大块空白。
   正确做法：只改变量本身，宽度公式和 flex gap 会自动保持一致。 */
.post-loop { --theme-post-item-gap: 28px; }

.post-item {
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.post-item-inner {
  background: #ffffff !important;
  border: 1px solid var(--dk-line) !important;
  border-radius: var(--dk-radius-lg) !important;
  box-shadow: var(--dk-shadow-soft) !important;
  overflow: hidden;
  height: 100%;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1) !important;
  position: relative;
}

.post-item-inner::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--dk-gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.post-item:hover .post-item-inner {
  transform: translateY(-8px);
  border-color: rgba(59, 130, 246, 0.3) !important;
  box-shadow: var(--dk-shadow-lift) !important;
}
.post-item:hover .post-item-inner::before { transform: scaleX(1); }

.post-item-inner > a { display: block; overflow: hidden; }
.post-item-inner > a img {
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1) !important;
}
.post-item:hover .post-item-inner > a img { transform: scale(1.08) !important; }

.item-title {
  font-size: 16px !important;
  font-weight: 700 !important;
  line-height: 1.5 !important;
  margin: 16px 20px 10px !important;
}
.item-title a { color: var(--dk-ink-900) !important; transition: color 0.2s ease !important; }
.post-item:hover .item-title a { color: var(--dk-blue-500) !important; }

.item-excerpt { margin: 0 20px 14px !important; }
.item-excerpt p {
  color: var(--dk-ink-500) !important;
  font-size: 13.5px !important;
  line-height: 1.7 !important;
}

.item-meta {
  margin: 0 20px 18px !important;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.item-cat {
  background: rgba(59, 130, 246, 0.08) !important;
  color: var(--dk-blue-500) !important;
  font-weight: 700 !important;
  font-size: 11.5px !important;
  letter-spacing: 0.02em;
  padding: 4px 12px !important;
  border-radius: 999px !important;
  border: 1px solid rgba(59, 130, 246, 0.16);
}

.item-date { color: #94a3b8 !important; font-size: 12.5px !important; }

/* --------------------------------------------------------------------------
   7. Footer — deep navy, editorial structure
   -------------------------------------------------------------------------- */
footer.footer {
  background: var(--dk-navy-950) !important;
  color: #94a3b8 !important;
  padding-top: 56px !important;
  padding-bottom: 0 !important;
  margin-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.06) !important;
}

footer.footer a { color: #cbd5e1 !important; transition: color 0.2s ease !important; }
footer.footer a:hover { color: var(--dk-cyan-400) !important; }

footer.footer .widget-title {
  color: #ffffff !important;
  font-weight: 700 !important;
  font-size: 15px !important;
  position: relative;
  padding-bottom: 12px;
  margin-bottom: 18px !important;
}
footer.footer .widget-title::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0;
  width: 32px; height: 3px;
  border-radius: 3px;
  background: var(--dk-gradient-accent);
}

/* 历史文章归档改为下拉框（dropdown 模式）后的样式，避免出现超长纵向列表 */
footer.footer .widget_archive select {
  width: 100%;
  background: rgba(255, 255, 255, 0.06) !important;
  color: #e2e8f0 !important;
  border: 1px solid rgba(255, 255, 255, 0.12) !important;
  border-radius: 8px !important;
  padding: 10px 12px !important;
  font-size: 13px !important;
  appearance: none;
  -webkit-appearance: none;
}
footer.footer .widget_archive select:focus { outline: 2px solid var(--dk-blue-500) !important; }

footer.footer .contact-btn {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  background: var(--dk-gradient-accent) !important;
  color: #ffffff !important;
  font-weight: 700 !important;
  padding: 10px 22px !important;
  border-radius: 999px !important;
  margin-top: 10px;
  box-shadow: 0 12px 26px -8px rgba(37, 99, 235, 0.45);
  transition: transform 0.25s ease !important;
}
footer.footer .contact-btn:hover { transform: translateY(-2px); }

footer.footer .sns-wx .wpcom-icon,
footer.footer .sns-icon {
  color: #ffffff !important;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  transition: all 0.25s ease !important;
}
footer.footer .sns-wx:hover .sns-icon { background: var(--dk-blue-500); }

footer.footer .copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.06) !important;
  margin-top: 30px !important;
  padding: 22px 0 !important;
  font-size: 12.5px !important;
  color: #64748b !important;
}
footer.footer .copyright a { color: #94a3b8 !important; }
footer.footer .copyright a:hover { color: var(--dk-cyan-400) !important; }

/* --------------------------------------------------------------------------
   8. Floating Action Bar (theme-native go-top / share buttons)
   -------------------------------------------------------------------------- */
.action .action-item {
  background: var(--dk-navy-900) !important;
  color: #ffffff !important;
  box-shadow: var(--dk-shadow-lift) !important;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
}
.action .action-item:hover {
  background: var(--dk-blue-500) !important;
  transform: translateY(-3px);
}

/* --------------------------------------------------------------------------
   9. Scroll Reveal Animation Hooks
   -------------------------------------------------------------------------- */
.dtalk-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.dtalk-reveal.active { opacity: 1; transform: translateY(0); }

@media (max-width: 782px) {
  #modules-28.modules-gird { padding: 48px 0 60px !important; border-radius: 0 0 20px 20px; }
  #modules-28 .modules-text h1, #modules-28 .modules-text h1 span { font-size: 1.7em !important; }
  .sec-title-wrap h2 { font-size: 1.5em !important; }
}