/* ===== Post TOC Sidebar ===== */
.post-wrapper {
  display: flex;
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}

.toc-sidebar {
  position: sticky;
  top: 100px;
  height: calc(100vh - 120px);
  width: 220px;
  flex-shrink: 0;
  margin-right: 30px;
  overflow-y: auto;
  align-self: flex-start;
  z-index: 10;
  border-right: 1px solid var(--border-color);
  padding-right: 20px;
}

.toc-container {
  position: relative;
}

.toc-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--primary-color);
  font-family: var(--font-secondary);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent-color);
}

.toc-content {
  font-size: 0.9rem;
}

.toc-content ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.toc-content li {
  margin-bottom: 8px;
  position: relative;
}

.toc-content a {
  color: var(--secondary-color);
  text-decoration: none;
  display: block;
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  line-height: 1.4;
}

.toc-content a:hover {
  color: var(--accent-color);
  background-color: rgba(255, 107, 107, 0.1);
}

.toc-content a.active {
  color: var(--accent-color);
  font-weight: 500;
  background-color: rgba(255, 107, 107, 0.1);
  border-left: 3px solid var(--accent-color);
}

/* TOC层级缩进 */
.toc-content .toc-h1 {
  padding-left: 0;
}

.toc-content .toc-h2 {
  padding-left: 15px;
}

.toc-content .toc-h3 {
  padding-left: 30px;
}

.toc-content .toc-h4 {
  padding-left: 45px;
}

.toc-content .toc-h5 {
  padding-left: 60px;
}

.toc-content .toc-h6 {
  padding-left: 75px;
}

/* 响应式调整 */
@media (max-width: 1024px) {
  .toc-sidebar {
    display: none;
  }

  .post-wrapper {
    display: block;
  }

  .post-container {
    max-width: 800px;
    margin: 0 auto;
    padding: calc(var(--spacing-3xl) + var(--spacing-2xl)) var(--content-padding) var(--spacing-3xl);
  }
}

/* 移动端TOC按钮 */
@media (max-width: 1024px) {
  .mobile-toc-toggle {
    display: flex;
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background-color: var(--accent-color);
    color: white;
    border-radius: 50%;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all var(--transition-fast);
  }

  .mobile-toc-toggle i {
    font-size: 20px;
  }

  .mobile-toc-toggle:hover {
    transform: scale(1.1);
  }


}

  .mobile-toc-panel {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 80%;
    max-width: 300px;
    background-color: white;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 1001;
    padding: 20px;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    visibility: hidden;
  }

  .mobile-toc-panel.active {
    transform: translateX(0);
    visibility: visible;
  }

  .mobile-toc-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
  }

  .mobile-toc-overlay.active {
    display: block;
  }


@media (min-width: 1025px) {
  .mobile-toc-toggle,
  .mobile-toc-panel,
  .mobile-toc-overlay {
    display: none !important;
  }
}