:root {
  --blog-bg: #f5f7fb;
  --blog-bg-soft: #eef3fb;
  --blog-surface: rgba(255, 255, 255, 0.9);
  --blog-surface-strong: #ffffff;
  --blog-border: rgba(15, 23, 42, 0.08);
  --blog-text: #1f2937;
  --blog-text-soft: #667085;
  --blog-heading: #101828;
  --blog-primary: #355cd6;
  --blog-primary-soft: rgba(53, 92, 214, 0.1);
  --blog-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --blog-shadow-hover: 0 16px 36px rgba(15, 23, 42, 0.12);
  --blog-radius: 18px;
  --blog-radius-sm: 12px;
  --blog-content-width: 760px;
}

[data-theme='dark'] {
  --blog-bg: #0f172a;
  --blog-bg-soft: #111b31;
  --blog-surface: rgba(15, 23, 42, 0.88);
  --blog-surface-strong: #111827;
  --blog-border: rgba(148, 163, 184, 0.16);
  --blog-text: #d0d5dd;
  --blog-text-soft: #98a2b3;
  --blog-heading: #f8fafc;
  --blog-primary: #8fb2ff;
  --blog-primary-soft: rgba(143, 178, 255, 0.14);
  --blog-shadow: 0 12px 32px rgba(2, 6, 23, 0.34);
  --blog-shadow-hover: 0 18px 40px rgba(2, 6, 23, 0.42);
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--blog-text);
  background:
    radial-gradient(circle at top, rgba(53, 92, 214, 0.08), transparent 35%),
    linear-gradient(180deg, var(--blog-bg-soft), var(--blog-bg));
}

#web_bg {
  background: transparent;
}

body,
#nav,
#page,
#post,
.card-widget,
#recent-posts > .recent-post-item,
.pagination .page-number,
.pagination .prev,
.pagination .next,
#rightside > div > button,
#rightside > div > a,
#local-search .search-dialog,
#local-search .search-close-button,
#article-container a,
#card-toc .toc-link {
  transition:
    color 0.2s ease,
    background-color 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.2s ease,
    opacity 0.2s ease;
}

#nav.nav-fixed {
  background: rgba(245, 247, 251, 0.82);
  backdrop-filter: blur(14px);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

[data-theme='dark'] #nav.nav-fixed {
  background: rgba(15, 23, 42, 0.82);
}

#page,
#post,
.card-widget,
#recent-posts > .recent-post-item,
#local-search .search-dialog {
  background: var(--blog-surface);
  border: 1px solid var(--blog-border);
  border-radius: var(--blog-radius);
  box-shadow: var(--blog-shadow);
}

#recent-posts > .recent-post-item,
#page,
#post,
.card-widget {
  animation: pageFadeIn 0.35s ease both;
}

@keyframes pageFadeIn {
  from {
    opacity: 0.01;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#recent-posts > .recent-post-item:hover,
.card-widget:hover {
  transform: translateY(-3px);
  box-shadow: var(--blog-shadow-hover);
}

#recent-posts > .recent-post-item .post_cover img {
  border-radius: calc(var(--blog-radius) - 4px);
}

#recent-posts > .recent-post-item > .recent-post-info {
  padding: 1.5rem 1.6rem;
}

#page,
#post {
  padding: 2rem 2.2rem;
}

#article-container,
.post-content {
  max-width: var(--blog-content-width);
  margin: 0 auto;
  color: var(--blog-text);
  font-size: 1rem;
  line-height: 1.9;
}

#article-container h1,
#article-container h2,
#article-container h3,
#article-container h4,
#article-container h5,
#article-container h6 {
  color: var(--blog-heading);
  line-height: 1.35;
  scroll-margin-top: 88px;
}

#article-container h2,
#article-container h3 {
  margin-top: 2.2rem;
}

#article-container p,
#article-container ul,
#article-container ol,
#article-container blockquote,
#article-container .highlight,
#article-container .table-wrapper,
#article-container img {
  margin-top: 1.2rem;
  margin-bottom: 1.2rem;
}

#article-container a {
  color: var(--blog-primary);
  text-decoration: none;
}

#article-container a:hover {
  color: var(--blog-heading);
}

#article-container code {
  padding: 0.18rem 0.42rem;
  border-radius: 8px;
  background: var(--blog-primary-soft);
  color: var(--blog-heading);
  font-size: 0.92em;
}

figure.highlight {
  margin: 1.5rem 0;
  overflow: hidden;
  border: 1px solid var(--blog-border);
  border-radius: 16px;
  box-shadow: none;
}

figure.highlight:hover {
  box-shadow: none;
  transform: none;
}

figure.highlight pre {
  overflow: auto;
}

figure.highlight pre:focus {
  outline: 2px solid var(--blog-primary-soft);
  outline-offset: -2px;
}

#article-container blockquote {
  padding: 1rem 1.25rem;
  border-left: 4px solid var(--blog-primary);
  border-radius: 0 var(--blog-radius-sm) var(--blog-radius-sm) 0;
  background: var(--blog-primary-soft);
  color: var(--blog-text);
}

#article-container blockquote::before,
#article-container blockquote::after {
  content: none;
}

#article-container img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

[data-theme='dark'] #article-container img {
  box-shadow: 0 8px 24px rgba(2, 6, 23, 0.3);
}

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--blog-border);
  border-radius: 14px;
}

.table-wrapper table {
  width: 100%;
  margin: 0;
  border: 0;
  box-shadow: none;
}

.table-wrapper th {
  background: rgba(53, 92, 214, 0.08);
  color: var(--blog-heading);
}

.table-wrapper tr:hover {
  background: rgba(53, 92, 214, 0.04);
  transform: none;
}

#card-toc .toc-link {
  display: block;
  padding: 0.35rem 0 0.35rem 0.85rem;
  border-left: 2px solid transparent;
  color: var(--blog-text-soft);
}

#card-toc .toc-link:hover,
#card-toc .toc-link.is-active,
#toc .toc-link.is-active {
  color: var(--blog-primary);
  border-left-color: var(--blog-primary);
}

#card-toc .toc-child {
  margin-left: 0.35rem;
}

.post-title,
#page-header #site-title,
#page-header #site-subtitle {
  background: none;
  -webkit-text-fill-color: currentColor;
  text-shadow: none;
  filter: none;
  animation: none;
}

.post-title {
  color: var(--blog-heading);
}

#site-title,
#site-subtitle {
  color: var(--blog-heading);
}

#footer {
  color: var(--blog-text-soft);
}

.pagination .page-number,
.pagination .prev,
.pagination .next,
#rightside > div > button,
#rightside > div > a {
  border-radius: 12px;
}

.pagination .page-number:hover,
.pagination .prev:hover,
.pagination .next:hover,
#rightside > div > button:hover,
#rightside > div > a:hover {
  transform: translateY(-2px);
}

#local-search .search-dialog {
  max-width: 760px;
}

#local-search .local-search-input input {
  border: 1px solid var(--blog-border);
  border-radius: 12px;
  background: var(--blog-surface-strong);
}

#local-search .local-search-hit-item a {
  display: block;
  padding: 0.85rem 0;
  color: inherit;
}

#local-search .search-result-title {
  color: var(--blog-heading);
  font-weight: 600;
}

#local-search mark.search-keyword {
  background: rgba(255, 223, 93, 0.72);
  color: inherit;
}

.post-copyright,
.note,
.flink .flink-list > .flink-list-item a {
  border-radius: 14px;
}

.flink .flink-list > .flink-list-item a {
  border: 1px solid var(--blog-border);
  background: var(--blog-surface-strong);
}

.flink .flink-list > .flink-list-item a:hover {
  transform: translateY(-3px);
  border-color: rgba(53, 92, 214, 0.2);
  box-shadow: var(--blog-shadow);
}

#post-comment {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--blog-border);
}

#giscus-wrap {
  min-height: 160px;
}

.medium-zoom-overlay {
  background: rgba(15, 23, 42, 0.72) !important;
}

.medium-zoom-image--opened {
  border-radius: 16px;
}

@media (max-width: 900px) {
  #page,
  #post {
    padding: 1.5rem 1.2rem;
  }

  #recent-posts > .recent-post-item > .recent-post-info {
    padding: 1.2rem;
  }
}

@media (max-width: 768px) {
  :root {
    --blog-radius: 16px;
  }

  #article-container,
  .post-content {
    font-size: 0.98rem;
    line-height: 1.82;
  }

  #article-container h1 {
    font-size: 1.8rem;
  }

  #article-container h2 {
    font-size: 1.45rem;
  }

  #recent-posts > .recent-post-item:hover,
  .card-widget:hover {
    transform: none;
  }

  figure.highlight {
    border-radius: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  #nav,
  #page,
  #post,
  .card-widget,
  #recent-posts > .recent-post-item,
  .pagination .page-number,
  .pagination .prev,
  .pagination .next,
  #rightside > div > button,
  #rightside > div > a,
  #local-search .search-dialog,
  #local-search .search-close-button,
  #article-container a,
  #card-toc .toc-link {
    transition: none;
    animation: none;
  }
}