/* ============================================================
 * 汽车知识库 - 专业级自定义样式
 * Automotive Software Architecture Knowledge Base
 * Author: Michael Lin
 * ============================================================ */

/* ==================== Hero Section ==================== */
.hero-section {
  background: linear-gradient(135deg, #1a237e 0%, #0d47a1 50%, #01579b 100%);
  margin: -1rem -0.8rem 2rem;
  padding: 3rem 2rem;
  border-radius: 0 0 24px 24px;
  color: white;
}

.hero-content {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-text {
  flex: 1;
  min-width: 300px;
}

.hero-text h2 {
  color: #ffeb3b !important;
  font-size: 2.2rem;
  margin: 0 0 0.5rem;
  border: none !important;
  padding: 0 !important;
}

.hero-text h3 {
  color: rgba(255, 255, 255, 0.95) !important;
  font-size: 1.3rem;
  font-weight: 400;
  margin: 0 0 1.5rem;
}

.hero-highlights {
  margin: 1.5rem 0;
}

.hero-highlights p {
  margin: 0.8rem 0;
  font-size: 1rem;
  line-height: 1.6;
  opacity: 0.95;
}

.hero-highlights strong {
  color: white;
}

.hero-stats {
  margin-top: 2rem;
}

.hero-stats table {
  background: rgba(255, 255, 255, 0.1) !important;
  border-radius: 12px !important;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
}

.hero-stats th {
  background: transparent !important;
  color: #ffeb3b !important;
  font-size: 1.8rem !important;
  font-weight: 700 !important;
  padding: 1rem !important;
  border: none !important;
}

.hero-stats td {
  color: rgba(255, 255, 255, 0.9) !important;
  font-size: 0.85rem !important;
  padding: 0.5rem 1rem 1rem !important;
  border: none !important;
  text-align: center;
}

.hero-image {
  flex: 0 0 280px;
}

.hero-image img {
  width: 280px;
  height: 280px;
  object-fit: cover;
  border-radius: 16px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* Hero 响应式 */
@media screen and (max-width: 768px) {
  .hero-section {
    padding: 2rem 1rem;
  }
  
  .hero-text h2 {
    font-size: 1.6rem;
  }
  
  .hero-text h3 {
    font-size: 1.1rem;
  }
  
  .hero-image {
    flex: 0 0 100%;
    text-align: center;
  }
  
  .hero-image img {
    width: 200px;
    height: 200px;
  }
  
  .hero-stats th {
    font-size: 1.4rem !important;
  }
}

/* ==================== 产品统计卡片 ==================== */
.product-stats table {
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%) !important;
  border-radius: 12px !important;
  overflow: hidden;
}

.product-stats th {
  background: transparent !important;
  color: #1b5e20 !important;
  font-size: 1.6rem !important;
  font-weight: 700 !important;
  padding: 1rem !important;
}

.product-stats td {
  color: #2e7d32 !important;
  font-size: 0.85rem !important;
  padding: 0.5rem 1rem 1rem !important;
  text-align: center;
}

/* ==================== 指标网格 ==================== */
.metrics-grid table {
  background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%) !important;
  border-radius: 12px !important;
}

.metrics-grid th {
  background: #ff6f00 !important;
  color: white !important;
}

.metrics-grid td:nth-child(2) {
  color: #e65100 !important;
  font-weight: 700;
  font-size: 1.1rem;
}

/* ==================== 经验洞察块 ==================== */
.md-typeset .admonition.success {
  border-left: 4px solid #4caf50;
  background: linear-gradient(135deg, #e8f5e9 0%, #f1f8e9 100%);
}

.md-typeset .admonition.success > .admonition-title {
  background: linear-gradient(135deg, #4caf50 0%, #43a047 100%);
  color: white;
}

.md-typeset .admonition.success > .admonition-title::before {
  background-color: white;
}

/* ==================== 顶部公告横幅 ==================== */
.md-banner {
  background: linear-gradient(135deg, #1a237e 0%, #0d47a1 50%, #01579b 100%) !important;
  border-bottom: 3px solid #ffeb3b;
}

.md-banner__inner {
  color: white !important;
  font-weight: 500;
  padding: 0.8rem 0;
  font-size: 0.95rem;
}

.md-banner a {
  color: #ffeb3b !important;
  text-decoration: none;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  background: rgba(255, 235, 59, 0.15);
  border-radius: 4px;
  transition: all 0.3s ease;
  margin-left: 0.5rem;
}

.md-banner a:hover {
  background: rgba(255, 235, 59, 0.3);
  color: #fff176 !important;
  transform: translateX(3px);
}

.md-banner__button {
  color: rgba(255, 255, 255, 0.7) !important;
}

.md-banner__button:hover {
  color: white !important;
}

/* ==================== 徽章样式 ==================== */
img[alt="ISO 26262"],
img[alt="ISO 21434"],
img[alt="AUTOSAR"],
img[alt="ASPICE"],
img[alt="ISO 14229"],
img[alt*="UN R155"] {
  display: inline-block;
  margin: 6px 6px 6px 0;
  vertical-align: middle;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

img[alt="ISO 26262"]:hover,
img[alt="ISO 21434"]:hover,
img[alt="AUTOSAR"]:hover,
img[alt="ASPICE"]:hover,
img[alt="ISO 14229"]:hover,
img[alt*="UN R155"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

/* ==================== Mermaid 图表 ==================== */
.mermaid {
  background: transparent !important;
  text-align: center;
  margin: 2rem 0;
  padding: 1rem;
  border-radius: 8px;
}

[data-md-color-scheme="default"] .mermaid {
  background: linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%) !important;
  border: 1px solid #e0e0e0;
}

[data-md-color-scheme="slate"] .mermaid {
  background: linear-gradient(135deg, #1e1e1e 0%, #2d2d2d 100%) !important;
  border: 1px solid #424242;
}

/* ==================== 表格样式 ==================== */
.md-typeset table:not([class]) {
  font-size: 0.8rem;
  border: none;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.md-typeset table:not([class]) th {
  background: linear-gradient(135deg, var(--md-primary-fg-color) 0%, var(--md-accent-fg-color) 100%);
  color: white;
  font-weight: 600;
  padding: 0.8rem 1rem;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

.md-typeset table:not([class]) td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.md-typeset table:not([class]) tr:hover td {
  background: rgba(var(--md-primary-fg-color--rgb), 0.05);
}

/* ==================== 代码块 ==================== */
.md-typeset pre {
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}

.md-typeset pre > code {
  font-size: 0.8rem;
  line-height: 1.6;
}

/* ==================== 标题样式 ==================== */
.md-typeset h1 {
  font-weight: 700;
  letter-spacing: -0.5px;
}

.md-typeset h2 {
  border-bottom: 3px solid var(--md-primary-fg-color);
  padding-bottom: 0.6rem;
  margin-top: 2.5rem;
}

.md-typeset h3 {
  color: var(--md-primary-fg-color);
  font-weight: 600;
}

/* ==================== Admonition 提示块 ==================== */
.md-typeset .admonition {
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.md-typeset .admonition-title {
  font-weight: 600;
}

/* ==================== 引用块 ==================== */
.md-typeset blockquote {
  border-left: 4px solid var(--md-primary-fg-color);
  padding: 1rem 1.5rem;
  background: rgba(var(--md-primary-fg-color--rgb), 0.05);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  margin: 1.5rem 0;
}

.md-typeset blockquote p {
  margin: 0;
}

/* ==================== 页脚社交图标 ==================== */
.md-social {
  padding: 1rem 0;
}

.md-social__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
  margin: 0 0.3rem;
}

.md-social__link:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.md-social__link svg {
  width: 1.2rem;
  height: 1.2rem;
}

/* ==================== 作者卡片 ==================== */
.author-card {
  background: linear-gradient(135deg, #1a237e 0%, #0d47a1 100%) !important;
  border-top: 4px solid #ffeb3b;
}

.author-card h3 {
  color: white !important;
  margin: 0;
}

.author-card a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  transition: all 0.3s ease;
}

.author-card a:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* ==================== 导航栏 ==================== */
.md-header {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}

.md-tabs {
  background: rgba(0, 0, 0, 0.1);
}

.md-tabs__link {
  font-weight: 500;
  transition: all 0.2s ease;
}

.md-tabs__link:hover {
  opacity: 1;
}

.md-tabs__link--active {
  border-bottom: 3px solid #ffeb3b;
}

/* ==================== 外部链接标识 ==================== */
a[href^="http"]:not([href*="michaellinhq.github.io"]):not([href*="github.com/michaellinhq"])::after {
  content: " ↗";
  font-size: 0.8em;
  opacity: 0.7;
}

/* ==================== 微信弹窗 ==================== */
#wechat-modal {
  backdrop-filter: blur(5px);
}

#wechat-modal > div {
  animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ==================== 响应式优化 ==================== */
@media screen and (max-width: 768px) {
  .md-banner__inner {
    font-size: 0.85rem;
    padding: 0.6rem 0;
  }
  
  .md-typeset table:not([class]) {
    font-size: 0.7rem;
  }
  
  .md-typeset table:not([class]) th,
  .md-typeset table:not([class]) td {
    padding: 0.5rem;
  }
  
  .author-card {
    padding: 1.5rem !important;
  }
  
  .author-card h3 {
    font-size: 1.1rem !important;
  }
  
  .author-card p {
    font-size: 0.85rem !important;
  }
}

/* ==================== 打印样式 ==================== */
@media print {
  .md-banner,
  .author-card,
  .md-social,
  #wechat-modal {
    display: none !important;
  }
}

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

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--md-primary-fg-color) 0%, var(--md-accent-fg-color) 100%);
  border-radius: 4px;
}

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

/* ==================== 页面加载动画 ==================== */
.md-content {
  animation: contentFadeIn 0.5s ease;
}

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