/* 与 index.html 一致的顶栏、底栏（博客页 body.blog-page） */
:root {
  --blue: #006AF9;
  --blue-dark: #003073;
  --blue-light: #B0D1FF;
  --cyan: #02DCF0;
  --cyan-dark: #02B0C0;
  --cyan-light: #B1F4FA;
  --purple: #CF4AFF;
  --ai-grad: linear-gradient(135deg, #006AF9, #02DCF0, #CF4AFF);
  --primary-grad: linear-gradient(135deg, #006AF9, #003073);
  --dark: #1F2937;
  --gray: #6B7280;
  --gray-light: #D1D5DB;
  --gray-lighter: #F3F4F6;
  --white: #ffffff;
  --nav-h: 64px;
}

body.blog-page {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--dark);
  background: var(--white);
  min-height: 100vh;
}

body.blog-page > nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 106, 249, 0.10);
  display: flex;
  align-items: center;
  padding: 0 40px;
  z-index: 1000;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--blue-dark);
  cursor: pointer;
  text-decoration: none;
}

.logo-mark {
  width: 36px;
  height: 36px;
  background: var(--primary-grad);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 16px;
  font-weight: 700;
  overflow: hidden;
}

.logo span {
  color: var(--blue);
}

body.blog-page > nav ul {
  display: flex;
  align-items: center;
  align-self: stretch;
  list-style: none;
  gap: 4px;
  margin: 0;
  padding: 0;
}

body.blog-page > nav ul li {
  display: flex;
  align-items: center;
}

body.blog-page > nav ul li a {
  text-decoration: none;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 400;
  color: var(--dark);
  transition: all 0.2s;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  line-height: 1.25;
}

body.blog-page > nav ul li a:hover,
body.blog-page > nav ul li a.active {
  background: rgba(0, 106, 249, 0.08);
  color: var(--blue);
}

body.blog-page > nav ul li.nav-dropdown {
  position: relative;
  outline: none;
}

body.blog-page > nav ul li .nav-dropdown-trigger {
  text-decoration: none;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 400;
  color: var(--dark);
  transition: all 0.2s;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  line-height: 1.25;
  user-select: none;
}

body.blog-page > nav ul li.nav-dropdown:hover .nav-dropdown-trigger,
body.blog-page > nav ul li.nav-dropdown:focus-within .nav-dropdown-trigger {
  background: rgba(0, 106, 249, 0.08);
  color: var(--blue);
}

.nav-dropdown-panel {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding-top: 6px;
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  min-width: 300px;
  max-width: min(420px, calc(100vw - 48px));
}

body.blog-page > nav ul li.nav-dropdown:hover .nav-dropdown-panel,
body.blog-page > nav ul li.nav-dropdown:focus-within .nav-dropdown-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-dropdown-panel-inner {
  background: #fff;
  border: 1px solid rgba(0, 106, 249, 0.12);
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0, 55, 115, 0.12);
  padding: 6px;
}

.nav-dropdown-panel a {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.45;
  font-weight: 400;
  color: var(--dark);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.nav-dropdown-panel a:hover {
  background: rgba(0, 106, 249, 0.08);
  color: var(--blue);
}

.nav-cta {
  background: var(--blue) !important;
  color: white !important;
  padding: 8px 22px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  display: inline-block;
  text-decoration: none;
  text-align: center;
}

.nav-cta:hover {
  background: var(--blue-dark) !important;
  transform: translateY(-1px);
}

.nav-actions {
  display: flex;
  align-items: center;
  align-self: stretch;
  gap: 6px;
  flex-shrink: 0;
}

.nav-app-dropdown {
  position: relative;
  outline: none;
}

.nav-app-trigger {
  font-size: 15px;
  font-weight: 500;
  color: var(--dark);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  transition: all 0.2s;
  display: block;
}

.nav-app-dropdown:hover .nav-app-trigger,
.nav-app-dropdown:focus-within .nav-app-trigger {
  background: rgba(0, 106, 249, 0.08);
  color: var(--blue);
}

.nav-app-panel {
  position: absolute;
  top: 100%;
  right: 0;
  padding-top: 6px;
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.nav-app-dropdown:hover .nav-app-panel,
.nav-app-dropdown:focus-within .nav-app-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-app-panel-inner {
  background: #fff;
  border: 1px solid rgba(0, 106, 249, 0.12);
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0, 55, 115, 0.12);
  padding: 16px 18px 14px;
  text-align: center;
}

.nav-app-panel-inner img {
  display: block;
  width: 168px;
  height: auto;
  margin: 0 auto 10px;
  border-radius: 6px;
}

.nav-app-caption {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.5;
  white-space: pre;
  margin: 0;
}

/* 汉堡按钮（小屏显示） */
body.blog-page .nav-toggle {
  display: none;
  background: transparent;
  border: none;
  width: 40px;
  height: 40px;
  position: relative;
  cursor: pointer;
  padding: 0;
  margin-left: 2px;
  border-radius: 8px;
  transition: background 0.2s;
  flex-shrink: 0;
}

body.blog-page .nav-toggle:hover {
  background: rgba(0, 106, 249, 0.08);
}

body.blog-page .nav-toggle span {
  position: absolute;
  left: 9px;
  width: 22px;
  height: 2px;
  background: var(--blue-dark);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.2s, top 0.25s;
}

body.blog-page .nav-toggle span:nth-child(1) { top: 13px; }
body.blog-page .nav-toggle span:nth-child(2) { top: 19px; }
body.blog-page .nav-toggle span:nth-child(3) { top: 25px; }

body.blog-page .nav-toggle.open span:nth-child(1) { top: 19px; transform: rotate(45deg); }
body.blog-page .nav-toggle.open span:nth-child(2) { opacity: 0; }
body.blog-page .nav-toggle.open span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

/* 博客页移动端抽屉 */
.blog-mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 1500;
  visibility: hidden;
  pointer-events: none;
}

.blog-mobile-menu.open {
  visibility: visible;
  pointer-events: auto;
}

.blog-mobile-menu-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 17, 36, 0.45);
  opacity: 0;
  transition: opacity 0.25s;
}

.blog-mobile-menu.open .blog-mobile-menu-backdrop {
  opacity: 1;
}

.blog-mobile-menu-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(320px, 86vw);
  height: 100%;
  background: #fff;
  padding: calc(var(--nav-h) + 12px) 18px 24px;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: -8px 0 32px rgba(0, 55, 115, 0.12);
}

.blog-mobile-menu.open .blog-mobile-menu-panel {
  transform: translateX(0);
}

.blog-mobile-menu-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 18px;
}

.blog-mobile-menu-list a {
  padding: 12px 14px;
  font-size: 16px;
  font-weight: 500;
  color: var(--dark);
  border-radius: 10px;
  text-decoration: none;
  display: block;
  transition: background 0.2s, color 0.2s;
}

.blog-mobile-menu-list a:hover {
  background: rgba(0, 106, 249, 0.08);
  color: var(--blue);
}

.blog-mobile-menu-section {
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  padding-top: 12px;
  margin-bottom: 18px;
}

.blog-mobile-menu-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding: 0 6px 8px;
}

.blog-mobile-menu-section a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--dark);
  line-height: 1.45;
  text-decoration: none;
  border-radius: 10px;
  transition: background 0.15s, color 0.15s;
}

.blog-mobile-menu-section a:hover {
  background: rgba(0, 106, 249, 0.06);
  color: var(--blue);
}

.blog-mobile-menu-app {
  text-align: center;
}

.blog-mobile-menu-app img {
  width: 140px;
  height: auto;
  margin: 4px auto 8px;
  border-radius: 8px;
  display: block;
}

.blog-mobile-menu-app p {
  font-size: 12px;
  color: var(--gray);
  margin: 0;
}

.blog-main {
  padding-top: var(--nav-h);
  padding-left: 24px;
  padding-right: 24px;
  min-height: 40vh;
}

body.blog-page .article-container {
  max-width: 1200px;
  margin: 24px auto 48px;
  padding: 50px 80px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  min-height: 50vh;
}

footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.6);
  padding: 48px 80px;
  text-align: center;
  font-size: 14px;
}

footer a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
}

footer a:hover {
  color: white;
}

.footer-info {
  margin-top: 16px;
  font-size: 13px;
}

/* 正文内表格/代码块小屏横向滚动 */
body.blog-page .article-container .markdown-body pre {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.04);
  font-size: 13px;
  line-height: 1.5;
}

body.blog-page .article-container .markdown-body table {
  display: block;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-collapse: collapse;
  font-size: 14px;
}

body.blog-page .article-container .markdown-body img,
body.blog-page .article-container .markdown-body video {
  max-width: 100%;
  height: auto;
}

@media (max-width: 1024px) {
  body.blog-page > nav {
    padding: 0 24px;
  }

  body.blog-page .article-container {
    padding: 40px 40px;
  }

  footer {
    padding: 40px 32px;
  }
}

@media (max-width: 900px) {
  body.blog-page > nav ul {
    display: none;
  }

  body.blog-page .nav-app-dropdown {
    display: none;
  }

  body.blog-page .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  body.blog-page > nav {
    padding: 0 16px;
  }

  body.blog-page .nav-cta {
    padding: 7px 14px;
    font-size: 14px;
  }

  body.blog-page .logo {
    font-size: 18px;
    gap: 8px;
  }

  body.blog-page .logo-mark {
    width: 32px;
    height: 32px;
    border-radius: 8px;
  }

  body.blog-page .logo-mark img {
    width: 32px !important;
    height: 32px !important;
  }

  .blog-main {
    padding-left: 16px;
    padding-right: 16px;
  }

  body.blog-page .article-container {
    padding: 28px 20px;
    margin: 16px auto 32px;
    border-radius: 12px;
  }

  body.blog-page #article-title.article-title {
    font-size: 24px;
    line-height: 1.35;
    margin-bottom: 12px;
  }

  body.blog-page .article-meta {
    font-size: 13px;
    margin-bottom: 28px;
  }

  body.blog-page .article-container .markdown-body {
    font-size: 15px;
    line-height: 1.75;
  }

  body.blog-page .article-container .markdown-body h1 {
    font-size: 1.45em;
  }

  body.blog-page .article-container .markdown-body h2 {
    font-size: 1.25em;
  }

  body.blog-page .article-container .markdown-body h3 {
    font-size: 1.1em;
  }

  body.blog-page .article-container .markdown-body ul,
  body.blog-page .article-container .markdown-body ol {
    margin-left: 1.25em;
    padding-left: 0.25em;
  }

  body.blog-page .article-container .markdown-body blockquote {
    padding: 10px 14px;
    margin-left: 0;
    margin-right: 0;
    font-size: 0.95em;
  }

  footer {
    padding: 36px 20px;
    font-size: 13px;
  }

  .footer-info {
    font-size: 12px;
    line-height: 1.6;
  }
}

@media (max-width: 560px) {
  body.blog-page #article-title.article-title {
    font-size: 20px;
  }

  body.blog-page .article-container {
    padding: 22px 16px;
    margin-left: 0;
    margin-right: 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  }

  body.blog-page .article-container .markdown-body {
    font-size: 15px;
  }

  body.blog-page .nav-cta {
    padding: 6px 10px;
    font-size: 13px;
  }

  body.blog-page .logo {
    font-size: 16px;
  }

  .blog-main {
    padding-left: 12px;
    padding-right: 12px;
  }

  footer {
    padding: 28px 16px;
  }
}

@media (max-width: 380px) {
  body.blog-page #article-title.article-title {
    font-size: 18px;
  }

  body.blog-page .article-container .markdown-body ul,
  body.blog-page .article-container .markdown-body ol {
    margin-left: 1em;
  }
}