@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --accent-color: #0969da;
  --accent-gradient: linear-gradient(135deg, #0969da 0%, #6366f1 100%);
  --accent-glow: rgba(9, 105, 218, 0.15);
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --card-shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.08), 0 4px 10px rgba(0, 0, 0, 0.04);
  --card-radius: 12px;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-user-color-scheme="dark"] {
  --accent-color: #58a6ff;
  --accent-gradient: linear-gradient(135deg, #58a6ff 0%, #818cf8 100%);
  --accent-glow: rgba(88, 166, 255, 0.12);
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --card-shadow-hover: 0 10px 30px rgba(0, 0, 0, 0.4), 0 4px 10px rgba(0, 0, 0, 0.2);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ========== NAVBAR ========== */
.navbar {
  backdrop-filter: blur(20px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
  box-shadow: none !important;
  transition: var(--transition-smooth) !important;
}

.navbar .navbar-brand {
  font-weight: 700 !important;
  font-size: 1.25rem !important;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #f0f6fc 0%, #8bb9fe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar .nav-item .nav-link {
  font-weight: 500 !important;
  letter-spacing: 0.01em;
  padding: 0.5rem 1rem !important;
  border-radius: 8px;
  transition: var(--transition-smooth) !important;
  position: relative;
}

.navbar .nav-item .nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1) !important;
  color: #8bb9fe !important;
}

.navbar .nav-item .nav-link i {
  margin-right: 0.3rem;
}

/* ========== BANNER ========== */
.banner {
  position: relative;
}

.banner .mask {
  background: linear-gradient(
    180deg,
    rgba(13, 17, 23, 0.4) 0%,
    rgba(13, 17, 23, 0.7) 100%
  ) !important;
}

.banner-text .h2 {
  font-weight: 700 !important;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

#subtitle {
  font-size: 2.5rem !important;
  font-weight: 700 !important;
}

@media (max-width: 767px) {
  #subtitle {
    font-size: 1.6rem !important;
  }
}

.typed-cursor {
  font-weight: 300 !important;
  color: var(--accent-color) !important;
}

/* ========== SCROLL DOWN ARROW ========== */
.scroll-down-bar {
  animation: bounce-arrow 2s infinite;
}

.scroll-down-bar i {
  font-size: 1.5rem;
  opacity: 0.7;
}

@keyframes bounce-arrow {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

/* ========== INDEX CARDS ========== */
.index-card {
  background: var(--board-bg-color);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem !important;
  transition: var(--transition-smooth);
  border: 1px solid var(--line-color);
  overflow: hidden;
  position: relative;
}

.index-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 4px 0 0 4px;
}

.index-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
  border-color: var(--accent-color);
}

.index-card:hover::before {
  opacity: 1;
}

.index-img img {
  border-radius: 8px !important;
  height: 12rem !important;
  transition: var(--transition-smooth);
}

.index-card:hover .index-img img {
  transform: scale(1.03);
}

.index-header {
  font-size: 1.35rem !important;
  font-weight: 700 !important;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem !important;
}

.index-header a {
  color: var(--post-heading-color) !important;
  transition: var(--transition-smooth);
}

.index-header a:hover {
  color: var(--accent-color) !important;
  text-decoration: none !important;
}

.index-excerpt {
  color: var(--sec-text-color) !important;
  font-size: 0.925rem;
  line-height: 1.7 !important;
  margin: 0.75rem 0 !important;
}

.index-btm {
  font-size: 0.85rem !important;
  padding-top: 0.5rem;
  border-top: 1px solid var(--line-color);
  margin-top: 0.5rem;
}

.index-btm .post-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.index-btm .post-meta i {
  font-size: 0.85rem;
  color: var(--accent-color);
}

.index-btm a {
  color: var(--sec-text-color) !important;
  transition: var(--transition-smooth);
}

.index-btm a:hover {
  color: var(--accent-color) !important;
}

/* ========== BOARD - 不能用 overflow:hidden 否则头像被裁剪 ========== */
#board {
  background: var(--board-bg-color);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  border: 1px solid var(--line-color);
  overflow: visible !important;
}

/* ========== POST PAGE ========== */
#seo-header {
  font-size: 2rem !important;
  font-weight: 800 !important;
  letter-spacing: -0.02em;
  line-height: 1.3 !important;
  border-bottom: 3px solid var(--accent-color) !important;
  padding-bottom: 0.5em !important;
  margin-bottom: 1em !important;
}

.markdown-body {
  font-size: 1rem !important;
  line-height: 1.8 !important;
}

.markdown-body h2 {
  font-size: 1.6rem !important;
  font-weight: 700 !important;
  margin-top: 2.5em !important;
  padding-bottom: 0.4em;
  border-bottom: 2px solid var(--line-color) !important;
  position: relative;
}

.markdown-body h2::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 60px;
  height: 2px;
  background: var(--accent-gradient);
}

.markdown-body h3 {
  font-size: 1.3rem !important;
  font-weight: 600 !important;
  margin-top: 2em !important;
}

.markdown-body h4 {
  font-size: 1.1rem !important;
  font-weight: 600 !important;
}

.markdown-body p {
  margin-bottom: 1.2em;
}

.markdown-body a {
  color: var(--accent-color) !important;
  text-decoration: none !important;
  border-bottom: 1px solid transparent;
  transition: var(--transition-smooth);
}

.markdown-body a:hover {
  border-bottom-color: var(--accent-color) !important;
}

.markdown-body blockquote {
  border-left: 4px solid var(--accent-color) !important;
  background: var(--accent-glow);
  padding: 1rem 1.5rem;
  border-radius: 0 8px 8px 0;
  margin: 1.5em 0;
}

.markdown-body code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace !important;
  font-size: 0.875em !important;
  background: var(--inlinecode-bg-color) !important;
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

/* ========== CODE BLOCK - 修复行号与代码分离 ========== */
.markdown-body figure.highlight {
  position: relative !important;
  border-radius: 10px !important;
  overflow: hidden !important;
  margin: 1.5em 0 !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1) !important;
  background: var(--highlight-bg-color) !important;
}

.markdown-body figure.highlight table {
  border: 0 !important;
  margin: 0 !important;
  width: 100% !important;
  border-radius: 0 !important;
  border-spacing: 0 !important;
  border-collapse: collapse !important;
  table-layout: auto !important;
  display: table !important;
}

.markdown-body figure.highlight tbody {
  display: table-row-group !important;
}

.markdown-body figure.highlight tr {
  border: 0 !important;
  background: transparent !important;
  display: table-row !important;
}

.markdown-body figure.highlight td {
  border: 0 !important;
  padding: 0 !important;
  vertical-align: top !important;
  display: table-cell !important;
}

.markdown-body figure.highlight td.gutter {
  display: table-cell !important;
  width: 3.5em !important;
  min-width: 3.5em !important;
  position: static !important;
  vertical-align: top !important;
}

.markdown-body figure.highlight td.gutter pre {
  text-align: right !important;
  padding: 1.45rem 0.75rem 1.45rem 1rem !important;
  margin: 0 !important;
  border-radius: 0 !important;
  border-right: 1px solid rgba(255, 255, 255, 0.1) !important;
  background-color: transparent !important;
  color: #636d83 !important;
  font-size: 0.85em !important;
  line-height: 1.5 !important;
  white-space: pre !important;
}

.markdown-body figure.highlight td.gutter pre span.line {
  color: #636d83 !important;
  display: block !important;
  line-height: inherit !important;
  height: inherit !important;
}

.markdown-body figure.highlight td.code {
  display: table-cell !important;
  width: auto !important;
  vertical-align: top !important;
}

.markdown-body figure.highlight td.code pre {
  padding: 1.45rem 1rem !important;
  margin: 0 !important;
  border-radius: 0 !important;
  background-color: transparent !important;
  font-size: 0.85em !important;
  line-height: 1.5 !important;
  white-space: pre !important;
}

.markdown-body figure.highlight td.code pre code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace !important;
  font-size: 1em !important;
  padding: 0 !important;
  background: transparent !important;
  line-height: inherit !important;
  white-space: pre !important;
  word-break: normal !important;
  overflow-wrap: normal !important;
}

.markdown-body .highlight pre,
.markdown-body pre {
  padding: 1.45rem 1rem !important;
}

.markdown-body pre code.hljs {
  padding: 0 !important;
}

.markdown-body table:not(.highlight table) {
  border-radius: 8px;
  overflow: hidden;
  border-collapse: separate;
  border-spacing: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.markdown-body table:not(.highlight table) th {
  background: var(--accent-glow) !important;
  font-weight: 600 !important;
  color: var(--post-heading-color) !important;
  border-bottom: 2px solid var(--accent-color) !important;
}

.markdown-body table:not(.highlight table) th,
.markdown-body table:not(.highlight table) td {
  padding: 0.75rem 1rem !important;
  border-color: var(--line-color) !important;
}

.markdown-body img {
  border-radius: 8px !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1) !important;
}

/* ========== POST META ========== */
.post-metas {
  gap: 0.5rem;
}

.post-meta {
  display: inline-flex !important;
  align-items: center;
  background: var(--button-bg-color);
  color: var(--text-color) !important;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.825rem !important;
  transition: var(--transition-smooth);
}

.post-meta a {
  color: var(--text-color) !important;
}

.post-meta:hover {
  background: var(--button-hover-bg-color);
}

.post-meta i {
  margin-right: 0.35rem;
  color: var(--accent-color);
  font-size: 0.85rem;
}

/* ========== ICON FIX - 用 CSS mask + SVG 替代 iconfont 图标 ========== */
i.icon-date,
i.icon-date-fill,
i.icon-category,
i.icon-category-fill,
i.icon-tags,
i.icon-tags-fill,
i.icon-author,
i.icon-chart,
i.icon-clock-fill,
.iconfont.icon-date,
.iconfont.icon-date-fill,
.iconfont.icon-category,
.iconfont.icon-category-fill,
.iconfont.icon-tags,
.iconfont.icon-tags-fill,
.iconfont.icon-author,
.iconfont.icon-chart,
.iconfont.icon-clock-fill {
  display: inline-block !important;
  width: 1em !important;
  height: 1em !important;
  font-size: inherit !important;
  line-height: 0 !important;
  vertical-align: -0.15em !important;
}

i.icon-date::before,
i.icon-date-fill::before,
.iconfont.icon-date::before,
.iconfont.icon-date-fill::before {
  content: '' !important;
  display: block !important;
  width: 100% !important;
  height: 100% !important;
  background: currentColor !important;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'/%3E%3Cline x1='16' y1='2' x2='16' y2='6'/%3E%3Cline x1='8' y1='2' x2='8' y2='6'/%3E%3Cline x1='3' y1='10' x2='21' y2='10'/%3E%3C/svg%3E") no-repeat center/contain !important;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'/%3E%3Cline x1='16' y1='2' x2='16' y2='6'/%3E%3Cline x1='8' y1='2' x2='8' y2='6'/%3E%3Cline x1='3' y1='10' x2='21' y2='10'/%3E%3C/svg%3E") no-repeat center/contain !important;
}

i.icon-category::before,
i.icon-category-fill::before,
.iconfont.icon-category::before,
.iconfont.icon-category-fill::before {
  content: '' !important;
  display: block !important;
  width: 100% !important;
  height: 100% !important;
  background: currentColor !important;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z'/%3E%3C/svg%3E") no-repeat center/contain !important;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z'/%3E%3C/svg%3E") no-repeat center/contain !important;
}

i.icon-tags::before,
i.icon-tags-fill::before,
.iconfont.icon-tags::before,
.iconfont.icon-tags-fill::before {
  content: '' !important;
  display: block !important;
  width: 100% !important;
  height: 100% !important;
  background: currentColor !important;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20.59 13.41l-7.17 7.17a2 2 0 0 1-2.83 0L2 12V2h10l8.59 8.59a2 2 0 0 1 0 2.82z'/%3E%3Cline x1='7' y1='7' x2='7.01' y2='7'/%3E%3C/svg%3E") no-repeat center/contain !important;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20.59 13.41l-7.17 7.17a2 2 0 0 1-2.83 0L2 12V2h10l8.59 8.59a2 2 0 0 1 0 2.82z'/%3E%3Cline x1='7' y1='7' x2='7.01' y2='7'/%3E%3C/svg%3E") no-repeat center/contain !important;
}

i.icon-author::before,
.iconfont.icon-author::before {
  content: '' !important;
  display: block !important;
  width: 100% !important;
  height: 100% !important;
  background: currentColor !important;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='12' cy='7' r='4'/%3E%3C/svg%3E") no-repeat center/contain !important;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='12' cy='7' r='4'/%3E%3C/svg%3E") no-repeat center/contain !important;
}

i.icon-chart::before,
.iconfont.icon-chart::before {
  content: '' !important;
  display: block !important;
  width: 100% !important;
  height: 100% !important;
  background: currentColor !important;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='18' y1='20' x2='18' y2='10'/%3E%3Cline x1='12' y1='20' x2='12' y2='4'/%3E%3Cline x1='6' y1='20' x2='6' y2='14'/%3E%3C/svg%3E") no-repeat center/contain !important;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='18' y1='20' x2='18' y2='10'/%3E%3Cline x1='12' y1='20' x2='12' y2='4'/%3E%3Cline x1='6' y1='20' x2='6' y2='14'/%3E%3C/svg%3E") no-repeat center/contain !important;
}

i.icon-clock-fill::before,
.iconfont.icon-clock-fill::before {
  content: '' !important;
  display: block !important;
  width: 100% !important;
  height: 100% !important;
  background: currentColor !important;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpolyline points='12 6 12 12 16 14'/%3E%3C/svg%3E") no-repeat center/contain !important;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpolyline points='12 6 12 12 16 14'/%3E%3C/svg%3E") no-repeat center/contain !important;
}

/* ========== COPYRIGHT ========== */
.license-box {
  background: var(--accent-glow) !important;
  border: 1px solid var(--line-color);
  border-left: 4px solid var(--accent-color);
  border-radius: 0 8px 8px 0;
  padding: 1rem 1.5rem !important;
}

/* ========== TOC ========== */
.tocbot-list {
  font-size: 0.875rem;
}

.tocbot-link {
  display: block;
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  transition: var(--transition-smooth);
  color: var(--sec-text-color) !important;
}

.tocbot-link:hover {
  color: var(--accent-color) !important;
  background: var(--accent-glow);
  text-decoration: none !important;
}

.tocbot-active-link {
  color: var(--accent-color) !important;
  font-weight: 600;
  background: var(--accent-glow);
  border-left: 3px solid var(--accent-color);
}

/* ========== CATEGORY BAR ========== */
.category-bar {
  background: var(--board-bg-color);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  border: 1px solid var(--line-color);
}

/* ========== FOOTER ========== */
.footer-inner {
  background: var(--navbar-bg-color);
  color: var(--navbar-text-color);
  padding: 2.5rem 0 1.5rem !important;
  margin-top: 3rem;
}

.footer-inner a {
  color: var(--navbar-text-color) !important;
  transition: var(--transition-smooth);
  font-weight: 500;
}

.footer-inner a:hover {
  color: var(--accent-color) !important;
  text-decoration: none;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  opacity: 0.85;
}

.footer-inner .iconfont.icon-love {
  color: #f43f5e;
  animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

/* ========== SEARCH MODAL ========== */
.modal-content {
  border-radius: var(--card-radius) !important;
  border: 1px solid var(--line-color);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15) !important;
}

/* ========== TAG PAGE ========== */
.tagcloud a {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  margin: 0.25rem;
  border-radius: 20px;
  background: var(--button-bg-color);
  border: 1px solid var(--line-color);
  transition: var(--transition-smooth);
  font-weight: 500;
}

.tagcloud a:hover {
  background: var(--accent-gradient);
  color: #fff !important;
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--accent-glow);
}

/* ========== ARCHIVE PAGE ========== */
.archive-item {
  transition: var(--transition-smooth);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  margin: 0.15rem 0;
}

.archive-item:hover {
  background: var(--accent-glow);
  transform: translateX(4px);
}

/* ========== PAGINATION ========== */
.pagination .page-item .page-link {
  border-radius: 8px !important;
  margin: 0 0.2rem;
  border: 1px solid var(--line-color);
  color: var(--text-color);
  transition: var(--transition-smooth);
  font-weight: 500;
}

.pagination .page-item.active .page-link {
  background: var(--accent-gradient) !important;
  border-color: transparent !important;
  color: #fff !important;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.pagination .page-item .page-link:hover {
  background: var(--accent-glow);
  border-color: var(--accent-color);
  color: var(--accent-color);
}

/* ========== POST PREV/NEXT ========== */
.post-prevnext {
  background: var(--board-bg-color);
  border-radius: var(--card-radius);
  padding: 1rem 1.5rem;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--line-color);
}

.post-prevnext a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  transition: var(--transition-smooth);
}

.post-prevnext a:hover {
  background: var(--accent-glow);
  color: var(--accent-color) !important;
}

/* ========== UPDATED NOTE ========== */
#updated-time {
  border-radius: 8px !important;
  border-left: 4px solid var(--accent-color) !important;
  background: var(--accent-glow) !important;
}

/* ========== CODE COPY BUTTON ========== */
.highlight-copy-btn {
  border-radius: 6px !important;
  transition: var(--transition-smooth);
}

.highlight-copy-btn:hover {
  background: var(--accent-color) !important;
  color: #fff !important;
}

/* ========== SELECTION ========== */
::selection {
  background: var(--accent-color);
  color: #fff;
}

::-moz-selection {
  background: var(--accent-color);
  color: #fff;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-color);
  border-radius: 8px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-hover-color);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 767px) {
  .index-card {
    padding: 1rem;
    border-radius: 10px;
  }

  #seo-header {
    font-size: 1.5rem !important;
  }

  .markdown-body h2 {
    font-size: 1.35rem !important;
  }

  .markdown-body h3 {
    font-size: 1.15rem !important;
  }
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.index-card {
  animation: fadeInUp 0.5s ease both;
}

.index-card:nth-child(2) { animation-delay: 0.1s; }
.index-card:nth-child(3) { animation-delay: 0.2s; }
.index-card:nth-child(4) { animation-delay: 0.3s; }
.index-card:nth-child(5) { animation-delay: 0.4s; }

/* ========== ABOUT PAGE - 修复头像只显示下半部分 ========== */
.about-avatar {
  margin: -6rem auto 1rem !important;
  width: 10rem !important;
  height: 10rem !important;
  border: 4px solid var(--accent-color) !important;
  border-radius: 50% !important;
  box-shadow: 0 0 0 4px var(--accent-glow), 0 8px 24px rgba(0, 0, 0, 0.15) !important;
  overflow: hidden !important;
  position: relative !important;
  z-index: 10 !important;
}

.about-avatar img {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  border-radius: 50% !important;
}

/* ========== LINK HOVER EFFECTS ========== */
.markdown-body a[href^="http"]::after {
  content: '';
  display: inline-block;
  width: 0;
  height: 1px;
  background: var(--accent-color);
  transition: width 0.3s ease;
  vertical-align: middle;
  margin-left: 2px;
}

.markdown-body a[href^="http"]:hover::after {
  width: 0.5em;
}

/* ========== HORIZONTAL RULE ========== */
.markdown-body hr {
  border: none !important;
  height: 2px !important;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--line-color) 50%,
    transparent 100%
  ) !important;
  margin: 2.5rem 0 !important;
}

/* ========== MISC ========== */
.board {
  background: transparent !important;
}

.nopadding-x-md {
  padding-left: 0 !important;
  padding-right: 0 !important;
}

.container-narrow {
  max-width: 900px;
}

/* ========== TOOLBOX PAGE ========== */
.toolbox-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.toolbox-hero {
  text-align: center;
  margin-bottom: 2.5rem;
}

.toolbox-hero h1 {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.toolbox-hero p {
  color: var(--sec-text-color);
  font-size: 1.05rem;
}

.toolbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.toolbox-card {
  background: var(--board-bg-color);
  border: 1px solid var(--line-color);
  border-radius: var(--card-radius);
  padding: 1.5rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.toolbox-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.toolbox-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-3px);
  border-color: var(--accent-color);
}

.toolbox-card:hover::before,
.toolbox-card.active::before {
  opacity: 1;
}

.toolbox-card.active {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.toolbox-card-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.toolbox-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--post-heading-color);
  margin-bottom: 0.4rem;
}

.toolbox-card p {
  color: var(--sec-text-color);
  font-size: 0.875rem;
  line-height: 1.5;
  margin: 0;
}

/* ========== TTS TOOL ========== */
.toolbox-panel {
  display: none;
}

.toolbox-panel.visible {
  display: block;
  animation: fadeInUp 0.4s ease both;
}

.tts-container {
  background: var(--board-bg-color);
  border: 1px solid var(--line-color);
  border-radius: var(--card-radius);
  padding: 2rem;
  box-shadow: var(--card-shadow);
}

.tts-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--post-heading-color);
  margin-bottom: 0.5rem;
}

.tts-desc {
  color: var(--sec-text-color);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.tts-input-group {
  margin-bottom: 1.25rem;
}

.tts-input-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.tts-input-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line-color);
  border-radius: 10px;
  background: var(--board-bg-color);
  color: var(--text-color);
  font-size: 0.95rem;
  line-height: 1.6;
  resize: vertical;
  transition: var(--transition-smooth);
  font-family: inherit;
}

.tts-input-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.tts-input-group textarea::placeholder {
  color: var(--sec-text-color);
  opacity: 0.6;
}

.tts-options {
  margin-bottom: 1.25rem;
}

.tts-option-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.tts-option-item {
  display: flex;
  flex-direction: column;
}

.tts-option-item label {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-color);
  margin-bottom: 0.4rem;
}

.tts-option-item label span {
  color: var(--accent-color);
  font-weight: 700;
}

.tts-option-item select {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--line-color);
  border-radius: 8px;
  background: var(--board-bg-color);
  color: var(--text-color);
  font-size: 0.85rem;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.tts-option-item select:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.tts-option-item input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--line-color);
  outline: none;
  margin-top: 0.5rem;
}

.tts-option-item input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-gradient);
  cursor: pointer;
  box-shadow: 0 2px 6px var(--accent-glow);
  transition: transform 0.2s ease;
}

.tts-option-item input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.tts-option-item input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-gradient);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 6px var(--accent-glow);
}

.tts-actions {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.tts-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.25rem;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.tts-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.tts-btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.tts-btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px var(--accent-glow);
}

.tts-btn-secondary {
  background: var(--button-bg-color);
  color: var(--text-color);
  border: 1px solid var(--line-color);
}

.tts-btn-secondary:hover:not(:disabled) {
  background: var(--button-hover-bg-color);
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.tts-btn-danger {
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
}

.tts-btn-danger:hover:not(:disabled) {
  background: #dc2626;
  color: #fff;
}

[data-user-color-scheme="dark"] .tts-btn-danger {
  background: rgba(220, 38, 38, 0.1);
  color: #f87171;
  border-color: rgba(220, 38, 38, 0.3);
}

[data-user-color-scheme="dark"] .tts-btn-danger:hover:not(:disabled) {
  background: #dc2626;
  color: #fff;
}

.tts-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--sec-text-color);
  margin-bottom: 0.75rem;
}

.tts-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sec-text-color);
}

.tts-status-dot.tts-status-playing {
  background: #22c55e;
  animation: pulse-dot 1.5s ease-in-out infinite;
}

.tts-status-dot.tts-status-paused {
  background: #f59e0b;
}

.tts-status-dot.tts-status-success {
  background: #22c55e;
}

.tts-status-dot.tts-status-error {
  background: #ef4444;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.tts-progress {
  width: 100%;
  height: 4px;
  background: var(--line-color);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.tts-progress-bar {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: 2px;
  transition: width 0.3s ease;
  width: 0%;
}

.tts-tips {
  background: var(--accent-glow);
  border: 1px solid var(--line-color);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin-top: 1.5rem;
}

.tts-tips h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--post-heading-color);
  margin-bottom: 0.75rem;
}

.tts-tips ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tts-tips li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  color: var(--sec-text-color);
  line-height: 1.6;
}

.tts-tips li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: 700;
}

@media (max-width: 767px) {
  .tts-option-row {
    grid-template-columns: 1fr;
  }

  .tts-container {
    padding: 1.25rem;
  }

  .toolbox-hero h1 {
    font-size: 1.6rem;
  }

  .tts-actions {
    flex-direction: column;
  }

  .tts-btn {
    justify-content: center;
  }
}

/* ========== GLOBAL FLOATING TTS ========== */
.g-tts-float {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 9999;
  font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
}

.g-tts-fab {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: var(--accent-gradient);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(9, 105, 218, 0.3);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  z-index: 2;
}

.g-tts-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(9, 105, 218, 0.4);
}

.g-tts-fab-active {
  background: linear-gradient(135deg, #dc2626, #ef4444);
  box-shadow: 0 4px 16px rgba(220, 38, 38, 0.3);
}

.g-tts-fab-active:hover {
  box-shadow: 0 6px 24px rgba(220, 38, 38, 0.4);
}

.g-tts-panel {
  position: absolute;
  top: 56px;
  right: 0;
  width: 340px;
  background: var(--board-bg-color);
  border: 1px solid var(--line-color);
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px) scale(0.95);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

[data-user-color-scheme="dark"] .g-tts-panel {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.2);
}

.g-tts-panel-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.g-tts-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  background: var(--accent-gradient);
  color: #fff;
}

.g-tts-panel-title {
  font-weight: 600;
  font-size: 0.9rem;
}

.g-tts-panel-close {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: #fff;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
}

.g-tts-panel-close:hover {
  background: rgba(255, 255, 255, 0.35);
}

.g-tts-panel-body {
  padding: 1rem;
}

.g-tts-text-preview {
  font-size: 0.8rem;
  color: var(--sec-text-color);
  line-height: 1.6;
  max-height: 80px;
  overflow-y: auto;
  padding: 0.6rem 0.75rem;
  background: var(--button-bg-color);
  border-radius: 8px;
  margin-bottom: 0.85rem;
  border: 1px solid var(--line-color);
  word-break: break-all;
}

.g-tts-option-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.g-tts-option-item {
  flex: 1;
  min-width: 0;
}

.g-tts-option-item label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--sec-text-color);
  font-weight: 500;
  white-space: nowrap;
}

.g-tts-option-item label span {
  color: var(--accent-color);
  font-weight: 600;
  min-width: 1.5em;
  text-align: center;
}

.g-tts-option-item select {
  flex: 1;
  min-width: 0;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--line-color);
  border-radius: 8px;
  background: var(--button-bg-color);
  color: var(--text-color);
  font-size: 0.8rem;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s;
}

.g-tts-option-item select:focus {
  border-color: var(--accent-color);
}

.g-tts-option-item input[type="range"] {
  flex: 1;
  min-width: 0;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--line-color);
  border-radius: 2px;
  outline: none;
}

.g-tts-option-item input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-color);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(9, 105, 218, 0.3);
}

.g-tts-option-item input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.g-tts-option-item input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-color);
  cursor: pointer;
  border: none;
}

.g-tts-actions {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.85rem;
  flex-wrap: wrap;
}

.g-tts-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--line-color);
  border-radius: 8px;
  background: var(--button-bg-color);
  color: var(--text-color);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.g-tts-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.g-tts-btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  border-color: transparent;
}

.g-tts-btn-primary:hover:not(:disabled) {
  box-shadow: 0 4px 12px var(--accent-glow);
  transform: translateY(-1px);
}

.g-tts-btn-secondary:hover:not(:disabled) {
  background: var(--button-hover-bg-color);
}

.g-tts-btn-danger:hover:not(:disabled) {
  background: rgba(220, 38, 38, 0.1);
  color: #dc2626;
  border-color: rgba(220, 38, 38, 0.3);
}

[data-user-color-scheme="dark"] .g-tts-btn-danger:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.3);
}

.g-tts-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.75rem;
  font-size: 0.78rem;
  color: var(--sec-text-color);
}

.g-tts-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line-color);
  flex-shrink: 0;
}

.g-tts-status-dot.g-tts-status-playing {
  background: #3b82f6;
  animation: g-tts-pulse 1.5s ease-in-out infinite;
}

.g-tts-status-dot.g-tts-status-paused {
  background: #f59e0b;
}

.g-tts-status-dot.g-tts-status-success {
  background: #22c55e;
}

.g-tts-status-dot.g-tts-status-error {
  background: #ef4444;
}

@keyframes g-tts-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.g-tts-progress {
  height: 3px;
  background: var(--line-color);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 0.6rem;
}

.g-tts-progress-bar {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: 2px;
  transition: width 0.3s ease;
  width: 0%;
}

@media (max-width: 480px) {
  .g-tts-float {
    right: 12px;
    top: 72px;
  }
  .g-tts-panel {
    width: calc(100vw - 24px);
    right: -6px;
  }
  .g-tts-fab {
    width: 42px;
    height: 42px;
  }
}

/* ========== LIVE2D SPEECH BUBBLE ========== */
.live2d-speech-bubble::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid rgba(255,255,255,0.95);
}
[data-user-color-scheme="dark"] .live2d-speech-bubble {
  background: rgba(40,40,50,0.95) !important;
  color: #e2e8f0 !important;
  border-color: rgba(255,255,255,0.08) !important;
}
[data-user-color-scheme="dark"] .live2d-speech-bubble::after {
  border-top-color: rgba(40,40,50,0.95);
}

/* ========== IT-TOOLS LINK CARD ========== */
.toolbox-card-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--accent-color);
  font-weight: 500;
}

a.toolbox-card {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

a.toolbox-card:hover .toolbox-card-link {
  text-decoration: underline;
}