/*
Theme Name: GeneratePress Child - Dengke Apple
Template: generatepress
Version: 1.0.0
Description: 登科教育 GEO 站前端：苹果风简洁化
*/

/* ===== 基础 ===== */
:root {
  --dk-blue: #0071e3;
  --dk-blue-hover: #0077ed;
  --dk-text: #1d1d1f;
  --dk-secondary: #6e6e73;
  --dk-bg: #ffffff;
  --dk-gray: #f5f5f7;
  --dk-border: #d2d2d7;
  --dk-border-soft: #e8e8ed;
  --dk-radius: 14px;
  --dk-radius-lg: 18px;
  --dk-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC", "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--dk-text);
  background: var(--dk-bg);
  letter-spacing: 0.01em;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ===== 顶部导航 ===== */
.site-header {
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--dk-border-soft);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .header-widget,
.site-header .inside-header {
  padding: 14px 32px;
}
.site-title a {
  color: var(--dk-text);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.site-description {
  color: var(--dk-secondary);
  font-size: 0.82rem;
}
.main-navigation .menu > li > a,
.main-navigation a {
  color: var(--dk-secondary);
  font-size: 0.92rem;
  font-weight: 400;
  padding: 0 14px;
}
.main-navigation .menu > li > a:hover,
.main-navigation a:hover {
  color: var(--dk-text);
}

/* ===== 首页 Hero ===== */
.dk-home {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}
.dk-hero {
  text-align: center;
  padding: 96px 0 72px;
}
.dk-hero h1 {
  font-size: clamp(2.2rem, 5.2vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 20px;
}
.dk-hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--dk-secondary);
  max-width: 640px;
  margin: 0 auto 36px;
}
.dk-hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.dk-btn {
  display: inline-block;
  border-radius: 980px;
  padding: 12px 26px;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.2s ease;
  line-height: 1.4;
}
.dk-btn-primary {
  background: var(--dk-blue);
  color: #fff;
}
.dk-btn-primary:hover {
  background: var(--dk-blue-hover);
  color: #fff;
}
.dk-btn-ghost {
  background: var(--dk-gray);
  color: var(--dk-text);
}
.dk-btn-ghost:hover {
  background: var(--dk-border-soft);
  color: var(--dk-text);
}

/* ===== 栏目卡片 ===== */
.dk-section {
  padding: 56px 0;
}
.dk-section-title {
  font-size: 1.7rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 26px;
}
.dk-cats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.dk-cat-card {
  display: block;
  background: var(--dk-gray);
  border-radius: var(--dk-radius);
  padding: 28px;
  text-decoration: none;
  color: var(--dk-text);
  border: 1px solid transparent;
  transition: all 0.25s ease;
}
.dk-cat-card:hover {
  background: #fff;
  border-color: var(--dk-border);
  box-shadow: var(--dk-shadow);
  transform: translateY(-2px);
  color: var(--dk-text);
}
.dk-cat-name {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.dk-cat-desc {
  font-size: 0.9rem;
  color: var(--dk-secondary);
  margin: 0 0 14px;
}
.dk-cat-count {
  font-size: 0.8rem;
  color: var(--dk-blue);
  font-weight: 500;
}

/* ===== 最新文章网格 ===== */
.dk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.dk-post-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--dk-border-soft);
  border-radius: var(--dk-radius);
  padding: 26px;
  text-decoration: none;
  color: var(--dk-text);
  transition: all 0.25s ease;
}
.dk-post-card:hover {
  border-color: var(--dk-border);
  box-shadow: var(--dk-shadow);
  transform: translateY(-2px);
  color: var(--dk-text);
}
.dk-post-cat {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--dk-blue);
  margin-bottom: 10px;
  text-transform: uppercase;
}
.dk-post-title {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
  margin: 0 0 12px;
  letter-spacing: -0.005em;
}
.dk-post-excerpt {
  font-size: 0.9rem;
  color: var(--dk-secondary);
  margin: 0 0 16px;
  flex: 1;
}
.dk-post-meta {
  font-size: 0.78rem;
  color: #86868b;
}
.dk-more {
  display: block;
  text-align: center;
  margin: 44px 0 0;
  color: var(--dk-blue);
  text-decoration: none;
  font-size: 1rem;
}
.dk-more:hover {
  text-decoration: underline;
  color: var(--dk-blue-hover);
}

/* ===== 文章详情页 ===== */
.single .entry-header {
  text-align: center;
  padding: 56px 24px 30px;
}
.single .entry-title {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}
.single .entry-meta {
  color: var(--dk-secondary);
  font-size: 0.85rem;
  margin-top: 14px;
}
.single .entry-content {
  max-width: 760px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.9;
  color: #333;
}
.entry-content h2 {
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 2em 0 0.8em;
  padding-bottom: 0.4em;
  border-bottom: 1px solid var(--dk-border-soft);
}
.entry-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 1.6em 0 0.6em;
}
.entry-content a {
  color: var(--dk-blue);
  text-decoration: none;
}
.entry-content a:hover {
  text-decoration: underline;
}
.entry-content ul li,
.entry-content ol li {
  margin-bottom: 0.5em;
}
.entry-content blockquote {
  border-left: 4px solid var(--dk-blue);
  margin: 1.5em 0;
  padding: 0.8em 1.2em;
  background: var(--dk-gray);
  color: #444;
  border-radius: 0 var(--dk-radius) var(--dk-radius) 0;
}

/* 归档/列表页 */
.blog .entry-title,
.archive .entry-title {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.blog article,
.archive article {
  background: #fff;
  border: 1px solid var(--dk-border-soft);
  border-radius: var(--dk-radius);
  padding: 26px 30px;
  margin-bottom: 22px;
  transition: all 0.25s ease;
}
.blog article:hover,
.archive article:hover {
  border-color: var(--dk-border);
  box-shadow: var(--dk-shadow);
}

/* 搜索框（侧栏） */
.widget_search .search-field {
  border-radius: 980px;
  border: 1px solid var(--dk-border-soft);
  padding: 10px 18px;
  background: var(--dk-gray);
}

/* ===== 页脚 ===== */
.site-footer {
  margin-top: 60px;
}
.site-info {
  background: var(--dk-gray);
  color: var(--dk-secondary);
  font-size: 0.82rem;
  padding: 34px 24px;
  text-align: center;
  line-height: 1.8;
}
.site-info a {
  color: var(--dk-secondary);
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .dk-hero { padding: 64px 0 48px; }
  .dk-cats, .dk-grid { grid-template-columns: 1fr; }
  .site-header .inside-header { padding: 10px 16px; }
  .single .entry-header { padding: 40px 16px 24px; }
}