/* ============================================
   SunPMS 静态网站样式
   ============================================ */

/* ---------- CSS Variables (Light Theme) ---------- */
:root {
  --color-bg: #ffffff;
  --color-bg-soft: #f6f6f7;
  --color-bg-mute: #e2e2e3;
  --color-bg-alt: #f9f9fa;
  --color-text-1: #213547;
  --color-text-2: #476582;
  --color-text-3: #90a4ae;
  --color-border: #e2e2e3;
  --color-divider: #e2e2e3;
  --color-brand: #3eaf7c;
  --color-brand-light: #4cc192;
  --color-brand-dark: #33a06f;
  --color-brand-bg: rgba(62, 175, 124, 0.08);
  --color-warning: #e7c000;
  --color-danger: #cc0000;
  --color-code-bg: #f6f8fa;
  --color-code-text: #476582;
  --color-tip-bg: rgba(62, 175, 124, 0.08);
  --color-tip-border: #3eaf7c;
  --shadow-nav: 0 1px 2px rgba(0,0,0,0.04);
  --nav-height: 60px;
  --sidebar-width: 272px;
  --toc-width: 224px;
  --content-max: 768px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'Fira Code', 'Source Code Pro', Menlo, Consolas, monospace;
}

/* ---------- Dark Theme ---------- */
[data-theme="dark"] {
  --color-bg: #1a1a2e;
  --color-bg-soft: #242442;
  --color-bg-mute: #2e2e4d;
  --color-bg-alt: #16162a;
  --color-text-1: #e0e0f0;
  --color-text-2: #b0b0cc;
  --color-text-3: #7878a0;
  --color-border: #3a3a5c;
  --color-divider: #3a3a5c;
  --color-brand: #4cc192;
  --color-brand-light: #5dd4a3;
  --color-brand-dark: #3eaf7c;
  --color-brand-bg: rgba(76, 193, 146, 0.1);
  --color-code-bg: #242442;
  --color-code-text: #b0b0cc;
  --color-tip-bg: rgba(76, 193, 146, 0.1);
  --shadow-nav: 0 1px 4px rgba(0,0,0,0.2);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-1);
  background: var(--color-bg);
  line-height: 1.7;
  transition: background 0.3s, color 0.3s;
  overflow-x: hidden;
}

a {
  color: var(--color-brand);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: var(--color-brand-light);
}

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

/* ---------- Top Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-nav);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 24px;
  transition: background 0.3s, border-color 0.3s;
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-1);
  text-decoration: none;
}
.navbar-brand:hover {
  color: var(--color-brand);
}

.navbar-logo {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.navbar-links a {
  display: inline-block;
  padding: 6px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-2);
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
}
.navbar-links a:hover,
.navbar-links a.active {
  color: var(--color-brand);
  background: var(--color-brand-bg);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--color-text-2);
  transition: border-color 0.2s, color 0.2s;
}
.theme-toggle:hover {
  color: var(--color-brand);
  border-color: var(--color-brand);
}

.github-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text-2);
  transition: border-color 0.2s, color 0.2s;
}
.github-link:hover {
  color: var(--color-brand);
  border-color: var(--color-brand);
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--color-text-2);
}

/* ---------- Layout ---------- */
.layout {
  display: flex;
  margin-top: var(--nav-height);
  min-height: calc(100vh - var(--nav-height));
}

/* ---------- Sidebar ---------- */
.sidebar {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-bg);
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
  padding: 24px 16px 48px;
  transition: transform 0.3s, background 0.3s, border-color 0.3s;
  z-index: 900;
}

.sidebar-group {
  margin-bottom: 24px;
}

.sidebar-group-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-1);
  padding: 4px 0;
  margin-bottom: 4px;
}

.sidebar-links {
  list-style: none;
}

.sidebar-links li a {
  display: block;
  padding: 6px 12px;
  font-size: 0.9rem;
  color: var(--color-text-2);
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.sidebar-links li a:hover {
  color: var(--color-brand);
  background: var(--color-brand-bg);
}
.sidebar-links li a.active {
  color: var(--color-brand);
  font-weight: 600;
  background: var(--color-brand-bg);
  border-left-color: var(--color-brand);
}

/* ---------- Main Content ---------- */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-width: 0;
}

.content-wrapper {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 40px 48px 80px;
}

/* ---------- Page Header (doc pages) ---------- */
.page-header {
  margin-bottom: 32px;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-1);
  line-height: 1.3;
  border-bottom: 1px solid var(--color-divider);
  padding-bottom: 16px;
}

/* ---------- Typography ---------- */
.doc-content h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 40px 0 16px;
  color: var(--color-text-1);
}

.doc-content h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 36px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text-1);
}

.doc-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 28px 0 10px;
  color: var(--color-text-1);
}

.doc-content h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 24px 0 8px;
  color: var(--color-text-1);
}

.doc-content p {
  margin: 12px 0;
  color: var(--color-text-2);
  line-height: 1.8;
}

.doc-content ul, .doc-content ol {
  margin: 12px 0;
  padding-left: 24px;
  color: var(--color-text-2);
}

.doc-content li {
  margin: 6px 0;
  line-height: 1.7;
}

.doc-content strong {
  color: var(--color-text-1);
  font-weight: 600;
}

.doc-content hr {
  border: none;
  border-top: 1px solid var(--color-divider);
  margin: 32px 0;
}

/* ---------- Code Blocks ---------- */
.doc-content code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background: var(--color-code-bg);
  color: var(--color-code-text);
  padding: 2px 6px;
  border-radius: 4px;
}

.doc-content pre {
  background: var(--color-code-bg);
  border-radius: 8px;
  padding: 20px 24px;
  overflow-x: auto;
  margin: 16px 0;
  border: 1px solid var(--color-border);
}

.doc-content pre code {
  background: transparent;
  padding: 0;
  font-size: 0.85rem;
  line-height: 1.7;
}

/* ---------- Tables ---------- */
.doc-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.9rem;
}

.doc-content table th,
.doc-content table td {
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  text-align: left;
}

.doc-content table th {
  background: var(--color-bg-soft);
  font-weight: 600;
  color: var(--color-text-1);
}

.doc-content table td {
  color: var(--color-text-2);
}

.doc-content table tr:hover td {
  background: var(--color-brand-bg);
}

/* ---------- Tip/Warning Containers ---------- */
.custom-tip, .custom-warning, .custom-info {
  border-left: 3px solid;
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  margin: 16px 0;
}

.custom-tip {
  background: var(--color-tip-bg);
  border-color: var(--color-tip-border);
}

.custom-warning {
  background: rgba(231, 192, 0, 0.08);
  border-color: var(--color-warning);
}

.custom-info {
  background: rgba(62, 175, 124, 0.06);
  border-color: var(--color-brand);
}

.custom-tip .title, .custom-warning .title, .custom-info .title {
  font-weight: 600;
  margin-bottom: 4px;
}

/* ---------- Page Navigation (prev/next) ---------- */
.page-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-divider);
  gap: 16px;
}

.page-nav-item {
  flex: 1;
  max-width: 48%;
}

.page-nav-item.next {
  text-align: right;
}

.page-nav-label {
  font-size: 0.8rem;
  color: var(--color-text-3);
  margin-bottom: 4px;
}

.page-nav-link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-brand);
}
.page-nav-link:hover {
  color: var(--color-brand-light);
}

/* ---------- Homepage ---------- */
.homepage {
  margin-left: 0;
}

.hero {
  text-align: center;
  padding: 80px 24px 60px;
  max-width: 900px;
  margin: 0 auto;
}

.hero-logo {
  width: 120px;
  height: 120px;
  border-radius: 20px;
  margin-bottom: 24px;
  box-shadow: 0 8px 32px rgba(62, 175, 124, 0.15);
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-text-1);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.hero .tagline {
  font-size: 1.3rem;
  color: var(--color-text-2);
  margin-bottom: 36px;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 10px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-brand);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-brand-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(62, 175, 124, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-1);
  border: 1px solid var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
  transform: translateY(-1px);
}

/* ---------- Features Section ---------- */
.features {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 24px 80px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 36px 32px;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
  border-color: var(--color-brand);
}

.feature-icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--color-text-2);
  line-height: 1.7;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-3);
  background: var(--color-bg);
  transition: border-color 0.3s, background 0.3s;
}

/* ---------- TOC (Right side) ---------- */
.toc {
  position: fixed;
  top: var(--nav-height);
  right: 0;
  width: var(--toc-width);
  height: calc(100vh - var(--nav-height));
  overflow-y: auto;
  padding: 24px 16px;
  border-left: 1px solid var(--color-border);
  background: var(--color-bg);
  transition: background 0.3s, border-color 0.3s;
}

.toc-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-1);
  margin-bottom: 12px;
}

.toc-links {
  list-style: none;
}

.toc-links li a {
  display: block;
  padding: 4px 0 4px 12px;
  font-size: 0.8rem;
  color: var(--color-text-3);
  border-left: 2px solid var(--color-border);
  transition: color 0.2s, border-color 0.2s;
}
.toc-links li a:hover,
.toc-links li a.active {
  color: var(--color-brand);
  border-left-color: var(--color-brand);
}

/* ---------- Demo Cards ---------- */
.demo-card {
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
  margin: 16px 0;
}

.demo-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 12px;
}

.demo-card .credential {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin: 8px 0;
}

.demo-card .credential-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 12px 16px;
  flex: 1;
  min-width: 200px;
}

.demo-card .credential-item label {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-3);
  margin-bottom: 4px;
}

.demo-card .credential-item span {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-text-1);
}

/* ---------- Responsive ---------- */
@media (max-width: 1200px) {
  .toc {
    display: none;
  }
}

@media (max-width: 960px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0,0,0,0.1);
  }
  .main-content {
    margin-left: 0;
  }
  .content-wrapper {
    padding: 24px 20px 60px;
  }
  .menu-toggle {
    display: flex;
  }
  .navbar-links {
    display: none;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .hero .tagline {
    font-size: 1.1rem;
  }
}

@media (max-width: 640px) {
  .hero h1 {
    font-size: 1.6rem;
  }
  .features {
    grid-template-columns: 1fr;
  }
  .page-nav {
    flex-direction: column;
  }
  .page-nav-item {
    max-width: 100%;
  }
  .page-nav-item.next {
    text-align: left;
  }
}

/* ---------- Overlay for mobile sidebar ---------- */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.4);
  z-index: 899;
}
.sidebar-overlay.show {
  display: block;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--color-bg-mute);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-3);
}

/* ---------- Anchor offset ---------- */
.doc-content h2[id],
.doc-content h3[id],
.doc-content h4[id] {
  scroll-margin-top: calc(var(--nav-height) + 16px);
}

/* ---------- Badge ---------- */
.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
}
.badge-green {
  background: var(--color-brand-bg);
  color: var(--color-brand);
}
.badge-yellow {
  background: rgba(231, 192, 0, 0.12);
  color: #b29400;
}

/* ---------- Steps ---------- */
.step-list {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
}

.step-list > li {
  counter-increment: step;
  position: relative;
  padding-left: 48px;
  margin: 20px 0;
}

.step-list > li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  background: var(--color-brand);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}