/* ===== hermesmari.top 技术学习站 - 全站样式 ===== */
/* 简约风格：浅色背景 + 青蓝主色 + 充足留白 + 清晰层级 */

:root {
  --bg:           #fafafa;
  --surface:      #ffffff;
  --border:       #e2e8f0;
  --text:         #1a202c;
  --text-muted:   #4a5568;
  --text-subtle:  #718096;
  --primary:      #2c7a7b;
  --primary-dark: #234e52;
  --primary-soft: #e6fffa;
  --code-bg:      #f7fafc;
  --code-border:  #edf2f7;
  --shadow:       0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
  --radius:       8px;
  --max-width:    820px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue",
               Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== 顶部导航 ===== */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(180%) blur(8px);
}
.site-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.site-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.2px;
}
.site-title .dot { color: var(--primary); }
.site-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  padding: 6px 12px;
  border-radius: 6px;
  transition: color .15s, background .15s;
}
.site-nav a:hover { color: var(--primary); background: var(--primary-soft); }
.site-nav a.active { color: var(--primary); background: var(--primary-soft); font-weight: 500; }

/* ===== 主内容容器 ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 20px 64px;
}

/* ===== 页面标题区 ===== */
.page-hero {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.page-hero h1 {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.3px;
}
.page-hero .lead {
  margin: 0;
  font-size: 16px;
  color: var(--text-muted);
}
.page-hero .meta {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-subtle);
}

/* ===== 通用排版 ===== */
h1, h2, h3, h4 { line-height: 1.3; letter-spacing: -0.2px; }
h2 {
  margin: 36px 0 14px;
  font-size: 22px;
  font-weight: 600;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
h3 { margin: 28px 0 10px; font-size: 18px; font-weight: 600; color: var(--primary-dark); }
p { margin: 0 0 16px; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { padding-left: 22px; margin: 0 0 16px; }
li { margin-bottom: 6px; }
strong { color: var(--text); font-weight: 600; }

/* ===== 代码块 ===== */
code {
  font-family: "SF Mono", "JetBrains Mono", "Fira Code", Consolas,
               "Liberation Mono", Menlo, monospace;
  font-size: 0.92em;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--primary-dark);
}
pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  overflow-x: auto;
  margin: 0 0 18px;
  line-height: 1.55;
}
pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text);
  font-size: 0.9em;
}

/* ===== 引用块 ===== */
blockquote {
  margin: 0 0 18px;
  padding: 12px 18px;
  border-left: 3px solid var(--primary);
  background: var(--primary-soft);
  color: var(--text-muted);
  border-radius: 0 6px 6px 0;
}
blockquote p:last-child { margin-bottom: 0; }

/* ===== 卡片网格（笔记列表 / 资源卡片） ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin: 8px 0 0;
}
.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-decoration: none;
  color: inherit;
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.card:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}
.card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--primary-dark);
  border: none;
  padding: 0;
}
.card p { margin: 0; font-size: 14px; color: var(--text-muted); line-height: 1.6; }
.card .card-meta {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-subtle);
  display: flex;
  gap: 12px;
}

/* ===== 列表式笔记索引 ===== */
.note-list { list-style: none; padding: 0; margin: 0; }
.note-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.note-list li:last-child { border-bottom: none; }
.note-list .note-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-dark);
  display: block;
  margin-bottom: 4px;
}
.note-list .note-title:hover { color: var(--primary); text-decoration: none; }
.note-list .note-summary { font-size: 14px; color: var(--text-muted); margin: 0 0 6px; line-height: 1.6; }
.note-list .note-meta { font-size: 12px; color: var(--text-subtle); }

/* ===== 标签 ===== */
.tag {
  display: inline-block;
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  margin-right: 6px;
}

/* ===== 首页 hero ===== */
.hero-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 32px;
}
.hero-block h1 {
  margin: 0 0 12px;
  font-size: 26px;
  font-weight: 700;
}
.hero-block p { color: var(--text-muted); margin-bottom: 0; }

/* ===== 资源分类区块 ===== */
.resource-section { margin-bottom: 32px; }
.resource-section h2 { margin-top: 0; }
.resource-section ul { list-style: none; padding: 0; }
.resource-section li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.resource-section li:last-child { border-bottom: none; }
.resource-section .res-name { font-weight: 600; color: var(--text); }
.resource-section .res-desc { font-size: 14px; color: var(--text-muted); margin-top: 2px; }

/* ===== 表格 ===== */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 18px;
  font-size: 14px;
}
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
th { background: var(--code-bg); font-weight: 600; color: var(--text); }
tr:last-child td { border-bottom: none; }

/* ===== 页脚 ===== */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  margin-top: 40px;
  padding: 28px 20px;
  text-align: center;
  font-size: 13px;
  color: var(--text-subtle);
}
.site-footer p { margin: 0 0 6px; }
.site-footer a { color: var(--text-muted); }
.site-footer .icp { margin-top: 4px; }
.site-footer .icp a { color: var(--text-subtle); }

/* ===== 响应式 ===== */
@media (max-width: 640px) {
  .container { padding: 28px 16px 48px; }
  .page-hero h1 { font-size: 24px; }
  .hero-block { padding: 22px; }
  .site-header-inner { padding: 12px 16px; }
  .site-nav a { padding: 6px 8px; font-size: 13px; }
  pre { padding: 12px; font-size: 0.85em; }
}