/* ============================================
   OpenClaw Guide 站点样式 · 纯静态版本
   配色：深空蓝 + 暖橘强调色，呼应域名"指引/航向"定位
   ============================================ */

:root {
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #1f2937;
  --color-text-soft: #6b7280;
  --color-muted: #9ca3af;
  --color-border: #e5e7eb;
  --color-primary: #1e40af;
  --color-primary-dark: #1e3a8a;
  --color-accent: #f59e0b;
  --color-accent-dark: #d97706;
  --color-success: #10b981;
  --color-code-bg: #1f2937;
  --color-code-text: #f8fafc;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 30px rgba(15, 23, 42, 0.12);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --content-max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--color-primary); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--color-accent-dark); }

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

.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ====== Header ====== */
.site-header {
  background: linear-gradient(135deg, #1f2937 0%, #1e3a8a 100%);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--content-max);
  margin: 0 auto;
}
.site-brand { display: flex; align-items: center; gap: 12px; color: #fff; }
.site-brand:hover { color: var(--color-accent); }
.brand-icon { font-size: 28px; }
.brand-text strong { display: block; font-size: 1.15rem; letter-spacing: 0.5px; }
.brand-text small { display: block; font-size: 0.78rem; opacity: 0.7; }

.site-nav { display: flex; align-items: center; }
.nav-menu {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  color: #fff;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-menu a:hover, .nav-menu a.active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-accent);
}
.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 40px;
  height: 40px;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  margin: 5px 0;
  transition: transform 0.2s ease;
}

/* ====== Main wrapper ====== */
main { flex: 1; }

/* ====== Hero ====== */
.hero {
  background: linear-gradient(160deg, #eef2ff 0%, #fef3c7 100%);
  padding: 80px 0 60px;
}
.hero-inner { max-width: 820px; margin: 0 auto; }
.hero-title {
  font-size: clamp(2rem, 4vw + 1rem, 3.4rem);
  margin: 0 0 16px;
  line-height: 1.15;
  color: var(--color-primary-dark);
  letter-spacing: -1px;
}
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-soft);
  margin: 0 0 32px;
  max-width: 720px;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* ====== Buttons ====== */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-secondary {
  background: #fff;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

/* ====== Sections ====== */
section { padding: 60px 0; }
.section-title {
  text-align: center;
  font-size: 2rem;
  margin: 0 0 12px;
  color: var(--color-primary-dark);
  position: relative;
  padding-bottom: 16px;
}
.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: var(--color-accent);
  margin: 12px auto 0;
  border-radius: 2px;
}

/* ====== Features ====== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.feature-card {
  background: var(--color-surface);
  padding: 28px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border-top: 3px solid var(--color-accent);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.feature-icon { font-size: 2.2rem; margin-bottom: 12px; }
.feature-card h3 { margin: 0 0 8px; color: var(--color-primary-dark); font-size: 1.15rem; }
.feature-card p { margin: 0; color: var(--color-text-soft); font-size: 0.95rem; }

/* ====== Posts Grid ====== */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.post-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.post-card-link { display: block; padding: 24px; color: inherit; }
.post-card-meta {
  display: flex;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-bottom: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.cat-badge {
  background: var(--color-accent);
  color: #fff;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  display: inline-block;
  text-decoration: none;
}
.cat-badge:hover { color: #fff; opacity: 0.9; }
.cat-badge.cat-tutorials { background: #10b981; }
.cat-badge.cat-api-docs { background: #6366f1; }
.cat-badge.cat-deploy { background: #ec4899; }

.post-card h3 { margin: 0 0 10px; color: var(--color-primary-dark); font-size: 1.15rem; line-height: 1.35; }
.post-card p { margin: 0 0 12px; color: var(--color-text-soft); font-size: 0.92rem; }
.read-more { color: var(--color-primary); font-size: 0.88rem; font-weight: 600; }

.view-all { text-align: center; margin-top: 40px; }

/* ====== Post Detail ====== */
.post { padding: 40px 0 80px; }
.post-container { max-width: 820px; margin: 0 auto; }
.post-header { margin-bottom: 32px; }
.post-header .cat-badge { margin-bottom: 16px; }
.post-header h1 {
  font-size: clamp(1.8rem, 3vw + 0.5rem, 2.4rem);
  margin: 16px 0;
  line-height: 1.25;
  color: var(--color-primary-dark);
}
.post-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--color-text-soft);
  font-size: 0.9rem;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.post-content {
  font-size: 1.05rem;
  line-height: 1.8;
  margin: 32px 0;
}
.post-content h2 {
  margin-top: 36px;
  margin-bottom: 14px;
  font-size: 1.55rem;
  color: var(--color-primary-dark);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-border);
}
.post-content h3 {
  margin-top: 28px;
  margin-bottom: 10px;
  font-size: 1.25rem;
  color: var(--color-text);
}
.post-content p { margin: 0 0 18px; }
.post-content ul, .post-content ol { padding-left: 28px; margin: 0 0 18px; }
.post-content li { margin: 6px 0; }
.post-content code {
  background: #f1f5f9;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: #be185d;
}
.post-content pre {
  background: var(--color-code-bg);
  color: var(--color-code-text);
  padding: 18px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 20px 0;
  line-height: 1.55;
  position: relative;
}
.post-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  font-size: 0.88rem;
  display: block;
  white-space: pre;
}
.post-content blockquote {
  margin: 20px 0;
  padding: 12px 20px;
  border-left: 4px solid var(--color-accent);
  background: #fffbeb;
  color: var(--color-text);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.post-content blockquote p:last-child { margin-bottom: 0; }
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.95rem;
}
.post-content th, .post-content td {
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  text-align: left;
}
.post-content th { background: #f1f5f9; }

.post-footer {
  margin: 32px 0;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.tag-list { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.tag {
  background: #eef2ff;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.85rem;
  color: var(--color-primary);
}
.tag:hover { background: var(--color-primary); color: #fff; }
.post-share { display: flex; gap: 12px; align-items: center; font-size: 0.9rem; }

.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-size: 0.95rem;
}
.post-nav a {
  max-width: 48%;
  padding: 12px 16px;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
}
.post-nav a:hover { background: var(--color-primary); color: #fff; }
.post-nav .next { text-align: right; margin-left: auto; }

/* ====== List page ====== */
.page-header { text-align: center; margin-bottom: 40px; }
.page-header h1 { font-size: 2.2rem; color: var(--color-primary-dark); margin: 0 0 12px; }
.page-intro { color: var(--color-text-soft); max-width: 720px; margin: 0 auto; }
.page-meta { color: var(--color-text-soft); font-size: 0.95rem; }

.post-list { display: grid; gap: 16px; margin: 32px 0; }
.post-row {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.post-row:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.post-row-link { display: block; padding: 24px; color: inherit; }
.post-row-meta { display: flex; gap: 12px; font-size: 0.85rem; color: var(--color-muted); margin-bottom: 8px; flex-wrap: wrap; align-items: center; }
.post-row h2 { margin: 0 0 8px; color: var(--color-primary-dark); font-size: 1.25rem; }
.post-row p { margin: 0; color: var(--color-text-soft); font-size: 0.95rem; }

/* ====== CTA Band ====== */
.cta-band {
  background: linear-gradient(135deg, #1e3a8a 0%, #1f2937 100%);
  color: #fff;
  text-align: center;
}
.cta-inner h2 { font-size: 1.8rem; margin: 0 0 12px; }
.cta-inner p { color: rgba(255, 255, 255, 0.85); margin: 0 0 24px; }

/* ====== Ad slots ====== */
.ad-band { padding: 24px 0; background: #f8fafc; }
.ad-slot {
  background: var(--color-surface);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px;
  margin: 24px 0;
  text-align: center;
  position: relative;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ad-slot-label {
  position: absolute;
  top: -10px;
  left: 16px;
  background: var(--color-surface);
  padding: 0 8px;
  font-size: 0.72rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.ad-placeholder {
  padding: 18px;
  color: var(--color-muted);
  font-size: 0.88rem;
}

/* ====== 广告位临时隐藏 ======
   AdSense 申请下来前，所有广告位不显示（避免露出占位框影响美观）。
   申请通过后，删除下面这一行即可恢复全部广告位。
   ============================================================ */
.ad-slot { display: none !important; }
/* 当 ad-slot 被隐藏后，让外层 ad-band 容器也不占空间 */
.ad-band:has(.ad-slot) { display: none; }

/* ====== Footer ====== */
.site-footer { background: #1f2937; color: #d1d5db; margin-top: 60px; }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  padding: 48px 24px;
  max-width: var(--content-max);
  margin: 0 auto;
}
.footer-col h4 { color: #fff; margin: 0 0 14px; font-size: 1rem; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin: 6px 0; font-size: 0.9rem; }
.footer-col a { color: #d1d5db; }
.footer-col a:hover { color: var(--color-accent); }
.footer-col p { font-size: 0.9rem; line-height: 1.6; }
.footer-bottom {
  border-top: 1px solid #374151;
  padding: 18px 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
}
.disclaimer { color: var(--color-muted); }

/* ====== 404 ====== */
.not-found { padding: 80px 24px; text-align: center; }
.not-found h1 { font-size: 5rem; margin: 0; color: var(--color-accent); }

/* ====== Copy button ====== */
.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 0;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.78rem;
  font-family: var(--font-sans);
  transition: background 0.15s ease;
}
.copy-btn:hover { background: rgba(255, 255, 255, 0.2); }

/* ====== Responsive ====== */
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-menu {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    flex-direction: column;
    background: var(--color-primary-dark);
    padding: 16px 24px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
  }
  .nav-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-menu a { display: block; }
  .hero { padding: 50px 0 40px; }
  section { padding: 40px 0; }
  .post-nav { flex-direction: column; }
  .post-nav a { max-width: 100%; }
}