/* 夜之向日葵主题增强样式 */

/* ===== 页面过渡效果 ===== */
.md-main {
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-out;
}

.md-main__inner {
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-out;
}

/* ===== 向日葵动画背景 ===== */
@keyframes sunflower-float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  25% { transform: translateY(-10px) rotate(5deg); }
  50% { transform: translateY(-20px) rotate(0deg); }
  75% { transform: translateY(-10px) rotate(-5deg); }
}

@keyframes night-stars {
  0% { opacity: 0.3; transform: translateY(0); }
  50% { opacity: 0.8; transform: translateY(-5px); }
  100% { opacity: 0.3; transform: translateY(0); }
}

/* ===== 页面背景装饰 ===== */
.md-main::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw; /* 明确使用视口单位 */
  height: 100vh;
  background: 
    radial-gradient(2px 2px at 20px 30px, rgba(255, 215, 0, 0.3), transparent),
    radial-gradient(2px 2px at 40px 70px, rgba(255, 140, 0, 0.3), transparent),
    radial-gradient(1px 1px at 90px 40px, rgba(255, 215, 0, 0.4), transparent),
    radial-gradient(1px 1px at 130px 80px, rgba(255, 140, 0, 0.3), transparent),
    radial-gradient(2px 2px at 160px 30px, rgba(255, 215, 0, 0.3), transparent);
  background-repeat: repeat;
  background-size: 100px 50px;
  animation: night-stars 4s ease-in-out infinite;
  pointer-events: none;
  z-index: -1;
}

/* 确保父元素不限制伪元素 */
.md-main {
  position: relative;
  overflow: visible; /* 避免裁剪 */
}

/* ===== 向日葵装饰元素 ===== */
.sunflower-decoration {
  position: fixed;
  top: 50%;
  right: 20px;
  transform: translateY(-50%);
  font-size: 60px;
  opacity: 0.1;
  animation: sunflower-float 6s ease-in-out infinite;
  pointer-events: none;
  z-index: -1;
}

.sunflower-decoration::before {
  content: '🌻';
}

/* ===== 夜晚装饰元素 ===== */
.night-decoration {
  position: fixed;
  top: 20%;
  left: 20px;
  font-size: 40px;
  opacity: 0.1;
  animation: sunflower-float 8s ease-in-out infinite reverse;
  pointer-events: none;
  z-index: -1;
}

.night-decoration::before {
  content: '🌙';
}

/* ===== 卡片悬停效果增强 ===== */
.md-typeset .card:hover .sunflower-sparkle {
  animation: sparkle 1s ease-in-out;
}

@keyframes sparkle {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: 0; }
  50% { transform: scale(1.2) rotate(180deg); opacity: 1; }
}

/* ===== 向日葵按钮效果 ===== */
.sunflower-button {
  background: var(--sunflower-gradient);
  border: none;
  color: white;
  padding: 12px 24px;
  border-radius: 25px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(255, 140, 0, 0.3);
}

.sunflower-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.sunflower-button:hover::before {
  left: 100%;
}

.sunflower-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(255, 140, 0, 0.4);
}

/* ===== 夜晚模式特殊效果 ===== */
[data-md-color-scheme="slate"] .md-main::before {
  background: 
    radial-gradient(2px 2px at 20px 30px, rgba(255, 215, 0, 0.5), transparent),
    radial-gradient(2px 2px at 40px 70px, rgba(255, 140, 0, 0.5), transparent),
    radial-gradient(1px 1px at 90px 40px, rgba(255, 215, 0, 0.6), transparent),
    radial-gradient(1px 1px at 130px 80px, rgba(255, 140, 0, 0.5), transparent),
    radial-gradient(2px 2px at 160px 30px, rgba(255, 215, 0, 0.5), transparent);
}

/* ===== 向日葵进度条 ===== */
.sunflower-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--sunflower-gradient);
  z-index: 1000;
  transition: width 0.3s ease;
}

/* ===== 向日葵加载动画 ===== */
.sunflower-loader {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 140, 0, 0.3);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: sunflower-spin 1s ease-in-out infinite;
}

@keyframes sunflower-spin {
  to { transform: rotate(360deg); }
}

/* ===== 向日葵工具提示 ===== */
.sunflower-tooltip {
  position: relative;
  cursor: help;
}

.sunflower-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--night-color);
  color: white;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  border: 1px solid var(--primary-color);
}

.sunflower-tooltip::before {
  content: '';
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--night-color);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
}

.sunflower-tooltip:hover::after,
.sunflower-tooltip:hover::before {
  opacity: 1;
  visibility: visible;
  bottom: 135%;
}

/* ===== 向日葵徽章 ===== */
.sunflower-badge {
  display: inline-block;
  background: var(--sunflower-gradient);
  color: white;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(255, 140, 0, 0.3);
  transition: all 0.3s ease;
}

.sunflower-badge:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(255, 140, 0, 0.4);
}

/* ===== 向日葵卡片组 ===== */
.sunflower-card-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.sunflower-card-group .card {
  position: relative;
  overflow: hidden;
}

.sunflower-card-group .card::before {
  content: '🌻';
  position: absolute;
  top: 15px;
  right: 15px;
  font-size: 20px;
  opacity: 0.3;
  transition: all 0.3s ease;
}

.sunflower-card-group .card:hover::before {
  opacity: 0.8;
  transform: rotate(15deg) scale(1.2);
}

/* ===== 向日葵导航增强 ===== */
.md-nav__item .md-nav__link {
  position: relative;
  overflow: hidden;
}

.md-nav__item .md-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--sunflower-gradient);
  transition: width 0.3s ease;
}

.md-nav__item .md-nav__link:hover::after {
  width: 100%;
}

/* ===== 向日葵搜索增强 ===== */
.md-search__input::placeholder {
  color: rgba(255, 140, 0, 0.6);
  font-style: italic;
}

.md-search__input:focus::placeholder {
  color: rgba(255, 140, 0, 0.8);
}

/* ===== 向日葵页脚增强 ===== */
.md-footer {
  background: var(--night-gradient);
  border-top: 3px solid var(--primary-color);
  position: relative;
}

.md-footer::before {
  content: '🌻';
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 24px;
  opacity: 0.6;
  animation: sunflower-rotate 30s linear infinite;
}

/* ===== 向日葵侧边栏增强 ===== */
.md-sidebar {
  border-right: 2px solid rgba(255, 140, 0, 0.2);
}

.md-sidebar__inner {
  background: linear-gradient(180deg, rgba(255, 140, 0, 0.02) 0%, transparent 100%);
}

/* ===== 向日葵内容区域增强 ===== */
.md-content {
  position: relative;
}

.md-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--sunflower-gradient);
  opacity: 0.3;
}

/* ===== 向日葵表格增强 ===== */
.md-typeset table {
  position: relative;
}

.md-typeset table::before {
  content: '📊';
  position: absolute;
  top: -10px;
  right: 10px;
  font-size: 16px;
  opacity: 0.4;
}

/* ===== 向日葵代码块增强 ===== */
.md-typeset pre {
  position: relative;
}

/* .md-typeset pre::after {
  content: '🌙';
  position: absolute;
  bottom: 10px;
  left: 15px;
  font-size: 14px;
  opacity: 0.4;
} */

/* ===== 向日葵引用块增强 ===== */
.md-typeset blockquote {
  position: relative;
}

.md-typeset blockquote::before {
  content: '🌻';
  position: absolute;
  top: -10px;
  left: 20px;
  font-size: 24px;
  opacity: 0.4;
  background: var(--bg-color);
  padding: 0 10px;
}

[data-md-color-scheme="slate"] .md-typeset blockquote::before {
  background: var(--dark-bg);
}

/* ===== 向日葵列表增强 ===== */
.md-typeset ul li::before {
  content: '🌻';
  color: var(--primary-color);
  font-size: 0.8rem;
  opacity: 0.7;
  animation: sunflower-pulse 2s ease-in-out infinite;
}

@keyframes sunflower-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* ===== 向日葵链接增强 ===== */
.md-typeset a[href^="http"]::after {
  content: '🔗';
  font-size: 0.8em;
  margin-left: 0.3em;
  opacity: 0.6;
  transition: all 0.3s ease;
}

.md-typeset a[href^="http"]:hover::after {
  opacity: 1;
  transform: scale(1.2);
}

/* ===== 向日葵图片增强 ===== */
.md-typeset img {
  position: relative;
}

.md-typeset img::after {
  content: '🖼️';
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 16px;
  opacity: 0.4;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  padding: 2px;
}

/* ===== 向日葵响应式增强 ===== */
@media (max-width: 768px) {
  .sunflower-decoration,
  .night-decoration {
    display: none;
  }
  
  .md-main::before {
    background-size: 100px 50px;
  }
}

@media (max-width: 480px) {
  .sunflower-card-group {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .sunflower-button {
    padding: 10px 20px;
    font-size: 14px;
  }
}

/* ===== 向日葵打印样式 ===== */
@media print {
  .sunflower-decoration,
  .night-decoration,
  .md-main::before {
    display: none;
  }
  
  .sunflower-button {
    background: #000 !important;
    color: #fff !important;
    box-shadow: none !important;
  }
}

/* 导航栏字体优化 */
.md-header, .md-tabs, .md-tabs__list, .md-nav__item, .md-nav__link {
  color: #fff !important;
  font-weight: 600 !important;
  text-shadow: 0 1px 2px rgba(0,0,0,0.08);
}

.md-nav__link:hover {
  color: #ffd700 !important;
}

/* 顶部深色 header 区域优化 */
.md-header, .md-header__title, .md-header__option, .md-header__button, .md-header .md-icon, .md-header__source, .md-header__topic, .md-header__ellipsis {
  color: #fff !important;
  fill: #fff !important;
}

.md-header .md-icon:hover, .md-header__button:hover, .md-header__option:hover {
  color: #ffd700 !important;
  fill: #ffd700 !important;
}

.md-search__input {
  color: #fff !important;
}

.md-search__input::placeholder {
  color: #fff !important;
  opacity: 0.8;
}

.md-search__icon {
  color: #fff !important;
  fill: #fff !important;
}

/* Header 文字高对比度优化 */
.md-header__title, .md-header__topic, .md-header__source, .md-header__ellipsis, .md-header__option, .md-header__button {
  color: #fff !important;
  font-weight: 700 !important;
  text-shadow: 0 1px 4px rgba(0,0,0,0.18);
}

/* 强制夜之向日葵标题为白色 */
.md-header__title {
  color: #fff !important;
  font-weight: 800 !important;
  text-shadow: 0 1px 4px rgba(0,0,0,0.18);
}

/* 卡片内文字在亮色模式下为深色，深色模式下为白色 */
.md-typeset .card, .md-typeset .post-card, .md-typeset .archive-stats, .md-typeset .category-stats {
  color: #222 !important;
}
[data-md-color-scheme="slate"] .md-typeset .card,
[data-md-color-scheme="slate"] .md-typeset .post-card,
[data-md-color-scheme="slate"] .md-typeset .archive-stats,
[data-md-color-scheme="slate"] .md-typeset .category-stats {
  color: #fff !important;
}

/* archive-stats 深色模式下背景柔和 */
[data-md-color-scheme="slate"] .archive-stats {
  background: rgba(30, 30, 40, 0.85) !important;
  color: #ffd700 !important;
  border: 1.5px solid rgba(255, 215, 0, 0.18);
  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
}

/* 导航链接在浅色/深色模式下的可读性修正 */
.md-nav__link {
  color: #222 !important;
  font-weight: 600;
}
.md-nav__link:hover {
  color: #ff8c00 !important;
}
[data-md-color-scheme="slate"] .md-nav__link {
  color: #fff !important;
}
[data-md-color-scheme="slate"] .md-nav__link:hover {
  color: #ffd700 !important;
} 

#backToTop {
  position: fixed !important;
  right: 40px !important;
  bottom: 40px !important;
  z-index: 9999 !important;
  display: none;
  background: var(--sunflower-gradient, #ffb300);
  color: #fff;
  border: none;
  border-radius: 25px;
  padding: 12px 24px;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(255, 140, 0, 0.3);
  cursor: pointer;
  transition: all 0.3s ease;
}
#backToTop:hover {
  box-shadow: 0 8px 25px rgba(255, 140, 0, 0.4);
  transform: translateY(-3px);
}
@media (max-width: 480px) {
  #backToTop {
    right: 16px !important;
    bottom: 16px !important;
    padding: 8px 16px;
    font-size: 13px;
  }
}
.md-sidebar,
.md-sidebar__inner {
  background: transparent !important;
  box-shadow: none !important;
}