/* 币安风格主题 - Binance Style Theme */

/* ========================================
   CSS 变量定义
   ======================================== */
:root {
  /* 主色调 */
  --color-primary: #F0B90B;
  --color-primary-hover: #FFD633;
  --color-primary-dark: #C99A09;

  /* 背景色 */
  --color-bg: #0B0E11;
  --color-bg-secondary: #181A20;
  --color-bg-tertiary: #1E2329;
  --color-bg-card: #1E2329;
  --color-bg-card-hover: #252930;

  /* 文字色 */
  --color-text: #EAECEF;
  --color-text-secondary: #848E9C;
  --color-text-muted: #5E6673;

  /* 边框和线条 */
  --color-border: #2B3139;
  --color-border-light: #3C4046;

  /* 状态色 */
  --color-success: #0ECB81;
  --color-danger: #F6465D;
  --color-warning: #F0B90B;
  --color-info: #1E88E5;

  /* 发光效果 */
  --shadow-glow: 0 0 20px rgba(240, 185, 11, 0.3);
  --shadow-glow-sm: 0 0 10px rgba(240, 185, 11, 0.2);
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.6);

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;

  /* 布局 */
  --max-width: 1200px;
  --content-width: 800px;
  --spacing: 1.5rem;
  --radius: 8px;
  --radius-lg: 12px;
}

/* ========================================
   基础重置
   ======================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-hover);
}

img {
  max-width: 100%;
  height: auto;
}

/* ========================================
   容器
   ======================================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing);
}

.container-narrow {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--spacing);
}

/* ========================================
   头部导航
   ======================================== */
.site-header {
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  height: 64px;
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.site-logo:hover {
  color: var(--color-primary);
}

.site-logo::before {
  content: "◆";
  color: var(--color-primary);
  font-size: 1.5rem;
}

.nav-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-menu a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.2s;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.3s ease;
}

.nav-menu a:hover {
  color: var(--color-primary);
}

.nav-menu a:hover::after {
  width: 100%;
}

/* ========================================
   主内容区
   ======================================== */
.main-content {
  min-height: calc(100vh - 200px);
  padding: 3rem 0;
}

/* ========================================
   首页 Hero
   ======================================== */
.hero {
  text-align: center;
  padding: 4rem 0;
  margin-bottom: 3rem;
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
  border-radius: var(--radius-lg);
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 50%, var(--color-text) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.site-description {
  color: var(--color-text-secondary);
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   卡片网格
   ======================================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.stat-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
}

.stat-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow-sm);
  transform: translateY(-4px);
}

.stat-card .number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.stat-card .label {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

/* ========================================
   文章列表
   ======================================== */
.section-title {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-title::before {
  content: "";
  width: 4px;
  height: 1.5rem;
  background: var(--color-primary);
  border-radius: 2px;
}

.post-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.post-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all 0.3s ease;
  display: block;
}

.post-card:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-card-hover);
  box-shadow: var(--shadow-glow-sm);
  transform: translateX(4px);
}

.post-card .post-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
  transition: color 0.2s;
}

.post-card:hover .post-title {
  color: var(--color-primary);
}

.post-card .post-meta {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.post-card .post-meta time::before {
  content: "📅 ";
}

.post-card .post-summary {
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 首页文章项（无链接包裹样式） */
.post-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.post-item:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-card-hover);
  box-shadow: var(--shadow-glow-sm);
}

.post-item .post-title {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.post-item .post-title a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s;
}

.post-item .post-title a:hover {
  color: var(--color-primary);
}

.post-item .post-meta {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
}

.post-item .post-summary {
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ========================================
   查看更多
   ======================================== */
.view-all {
  margin-top: 2rem;
  text-align: center;
}

.view-all a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  font-weight: 500;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  transition: all 0.3s ease;
}

.view-all a:hover {
  background: var(--color-primary);
  color: var(--color-bg);
  box-shadow: var(--shadow-glow-sm);
}

/* ========================================
   列表页面
   ======================================== */
.page-header {
  padding: 2rem 0;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
  font-size: 2rem;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.page-header h1::before {
  content: "";
  width: 4px;
  height: 2rem;
  background: var(--color-primary);
  border-radius: 2px;
}

.page-header .description {
  color: var(--color-text-secondary);
  margin-top: 0.5rem;
}

.categories a {
  color: var(--color-primary);
  margin-left: 0.25rem;
}

/* ========================================
   文章页面
   ======================================== */
.post {
  padding: 2rem 0;
}

.post-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.post-header .post-title {
  font-size: 2.25rem;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.post-header .post-meta {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.post-tags a {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: 9999px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all 0.2s;
}

.post-tags a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-bg);
}

/* ========================================
   文章内容
   ======================================== */
.post-content {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text);
}

.post-content h2 {
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
  padding-top: 1rem;
  padding-left: 1rem;
  border-left: 3px solid var(--color-primary);
  color: var(--color-text);
}

.post-content h3 {
  font-size: 1.25rem;
  margin: 2rem 0 0.75rem;
  color: var(--color-text);
}

.post-content h4 {
  font-size: 1.125rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--color-text);
}

.post-content p {
  margin-bottom: 1.25rem;
}

.post-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.post-content a:hover {
  color: var(--color-primary-hover);
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: 1.5rem 0;
  border: 1px solid var(--color-border);
}

.post-content ul,
.post-content ol {
  margin: 1rem 0 1.25rem 1.5rem;
}

.post-content li {
  margin-bottom: 0.5rem;
}

.post-content li::marker {
  color: var(--color-primary);
}

.post-content blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.5rem;
  border-left: 4px solid var(--color-primary);
  background: var(--color-bg-secondary);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--color-text-secondary);
}

.post-content blockquote p:last-child {
  margin-bottom: 0;
}

.post-content pre {
  margin: 1.5rem 0;
  padding: 1rem;
  background: #0d1117;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow-x: auto;
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.post-content p code,
.post-content li code {
  padding: 0.2em 0.4em;
  background: var(--color-bg-tertiary);
  border-radius: 0.25rem;
  color: var(--color-primary);
}

.post-content pre code {
  color: #e6edf3;
  background: transparent;
  padding: 0;
}

.post-content table {
  width: 100%;
  margin: 1.5rem 0;
  border-collapse: collapse;
  background: var(--color-bg-secondary);
  border-radius: var(--radius);
  overflow: hidden;
}

.post-content th,
.post-content td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.post-content th {
  background: var(--color-bg-tertiary);
  color: var(--color-text);
  font-weight: 600;
}

.post-content tr:hover {
  background: var(--color-bg-tertiary);
}

.post-content hr {
  margin: 2rem 0;
  border: none;
  border-top: 1px solid var(--color-border);
}

/* ========================================
   相关文章
   ======================================== */
.related-posts {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.related-posts h2 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.related-posts h2::before {
  content: "";
  width: 4px;
  height: 1.25rem;
  background: var(--color-primary);
  border-radius: 2px;
}

/* ========================================
   页脚
   ======================================== */
.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  margin-top: 3rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
}

.footer-nav a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--color-primary);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-brand::before {
  content: "◆";
  color: var(--color-primary);
}

/* ========================================
   分页
   ======================================== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-text);
  background: var(--color-bg-secondary);
  transition: all 0.2s;
}

.pagination a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination .active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-bg);
}

.pagination .disabled {
  color: var(--color-text-muted);
  cursor: not-allowed;
}

/* ========================================
   阅读进度条
   ======================================== */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  z-index: 999;
  transition: width 0.1s;
  box-shadow: var(--shadow-glow-sm);
}

/* ========================================
   滚动条样式
   ======================================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-light);
  border-radius: 4px;
}

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

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --spacing: 1rem;
  }

  .navbar {
    flex-direction: column;
    gap: 1rem;
    height: auto;
    padding: 1rem 0;
  }

  .nav-menu {
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero {
    padding: 2rem 0;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .site-description {
    font-size: 1rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .post-header .post-title {
    font-size: 1.5rem;
  }

  .post-content h2 {
    font-size: 1.25rem;
  }

  .footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* ========================================
   打印样式
   ======================================== */
@media print {
  .site-header,
  .site-footer,
  .related-posts,
  .pagination,
  .reading-progress {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .post-content {
    font-size: 12pt;
  }

  .post-content a {
    color: black;
    text-decoration: underline;
  }

  .post-content pre {
    border: 1px solid #ccc;
    background: #f5f5f5;
  }
}