:root {
  --primary-color: #3b82f6;
  --primary-light: #60a5fa;
  --primary-dark: #2563eb;
  --color-primary-light: #edf2fd;
  --secondary-color: #8b5cf6;
  --secondary-light: #a78bfa;
  --secondary-dark: #7c3aed;
  --accent-color: #06b6d4;
  --accent-light: #22d3ee;
  --accent-dark: #0891b2;
  --background: #f8fafc;
  --foreground: #0f172a;
  --card-bg: #ffffff;
  --card-border: #e5e7eb;
  --card-shadow: rgba(0, 0, 0, 0.05);
  --success-color: #10b981;
  --error-color: #ef4444;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #64748b;
  --border-radius: 8px;
  --border-color: #e7eefa;
  --transition-normal: all 0.2s ease;
  --transition-fast: all 0.1s ease;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  font-family: var(--font-sans);
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.03), rgba(139, 92, 246, 0.03));
  z-index: -1;
  pointer-events: none;
}

/* 容器样式 */
.container {
  width: 100%;
  max-width: 1200px;
  min-height: 100vh;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* 页面切换动画 */
.tab-content {
  display: none;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.tab-content.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* 头部样式 */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--card-border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  transition: var(--transition-normal);
}

.logo:hover {
  opacity: 0.8;
}

.logo-icon {
  width: 32px;
  height: 32px;
  color: var(--primary-color);
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
}

/* 导航样式 */
.nav {
  display: flex;
  align-items: center;
}

/* 选项卡样式 */
.tabs {
  display: flex;
  gap: 0.5rem;
}

.tab {
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition-normal);
  color: var(--text-secondary);
  user-select: none;
}

.tab:hover {
  color: var(--primary-color);
  background-color: rgba(59, 130, 246, 0.05);
}

.tab.active {
  color: var(--primary-color);
  background-color: rgba(59, 130, 246, 0.1);
}

/* 卡片样式 */
.card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 1px 3px var(--card-shadow);
  border: 1px solid var(--card-border);
  transition: var(--transition-normal);
}

.card:hover {
  box-shadow: 0 4px 6px var(--card-shadow);
}

.card h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.card h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  position: relative;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--card-border);
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

/* API请求地址样式 */
.docs-section .api-endpoint {
  background-color: var(--color-primary-light);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1rem;
  margin: 1rem 0;
  font-family: monospace;
  font-size: 1.1rem;
  color: var(--primary-color);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.docs-section .api-endpoint .endpoint-text {
  font-size: 24px;
  font-weight: 500;
}

.docs-section .api-endpoint .copy-endpoint {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  transition: var(--transition-normal);
}

.docs-section .api-endpoint .copy-endpoint:hover {
  color: var(--primary-color);
}

.card p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

/* 特性网格 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.feature-item {
  padding: 1.5rem;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: var(--border-radius);
  border: 1px solid var(--card-border);
  transition: var(--transition-normal);
}

.feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.feature-item h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.feature-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* CTA按钮 */
.cta-buttons {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

/* 按钮样式 */
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-normal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: none;
  font-family: var(--font-sans);
  font-size: 1rem;
}

.btn.primary {
  background-color: var(--primary-color);
  color: white;
}

.btn.primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
}

.btn.secondary {
  background-color: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
}

.btn.secondary:hover {
  background-color: rgba(59, 130, 246, 0.05);
  transform: translateY(-2px);
}

.btn-icon {
  transition: transform 0.3s ease;
}

.btn:hover .btn-icon {
  transform: translateX(3px);
}

/* 文档部分样式 */
.docs-section {
  margin-bottom: 2rem;
  border-radius: var(--border-radius);
  background-color: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--card-border);
  padding: 1.5rem;
  transition: var(--transition-normal);
}

.docs-section:hover {
  box-shadow: 0 4px 6px var(--card-shadow);
}

/* API参数表格样式 */
.api-params-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  background-color: white;
  border-radius: var(--border-radius);
  overflow: hidden;
}

.api-params-table th,
.api-params-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--card-border);
}

.api-params-table th {
  background-color: var(--primary-color);
  color: white;
  font-weight: 500;
}

.api-params-table tr:last-child td {
  border-bottom: none;
}

.api-params-table tr:hover td {
  background-color: rgba(59, 130, 246, 0.05);
}

/* 响应格式切换 */
.response-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.response-tab {
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition-normal);
  color: var(--text-secondary);
  background-color: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--card-border);
}

.response-tab:hover {
  color: var(--primary-color);
  background-color: rgba(59, 130, 246, 0.05);
}

.response-tab.active {
  color: var(--primary-color);
  background-color: rgba(59, 130, 246, 0.1);
  border-color: var(--primary-color);
}

/* 代码示例切换 */
.code-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.code-tab {
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition-normal);
  color: var(--text-secondary);
  background-color: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--card-border);
}

.code-tab:hover {
  color: var(--primary-color);
  background-color: rgba(59, 130, 246, 0.05);
}

.code-tab.active {
  color: var(--primary-color);
  background-color: rgba(59, 130, 246, 0.1);
  border-color: var(--primary-color);
}

/* 代码容器 */
.code-container {
  position: relative;
  margin: 1rem 0;
  border-radius: var(--border-radius);
  overflow: hidden;
}

pre {
  background-color: #282c34;
  color: #abb2bf;
  padding: 1.5rem;
  border-radius: var(--border-radius);
  overflow-x: auto;
  font-family: 'Fira Code', 'Consolas', 'Monaco', monospace;
  font-size: 0.9rem;
  line-height: 1.5;
}

.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background-color: rgba(255, 255, 255, 0.1);
  color: #d4d4d4;
  border: none;
  border-radius: 4px;
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.copy-btn:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

/* 响应内容和代码内容 */
.response-content, .code-content {
  display: none;
}

.response-content.active, .code-content.active {
  display: block;
}

/* 表单样式 */
.email-form {
  margin-top: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  color: var(--text-primary);
}

input, textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius);
  font-family: var(--font-sans);
  font-size: 1rem;
  background-color: white;
  transition: var(--transition-fast);
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

textarea {
  min-height: 150px;
  resize: vertical;
}

/* 切换按钮 */
.toggle-container {
  position: relative;
  display: inline-flex;
  background-color: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius);
  padding: 0.25rem;
  gap: 0.25rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  min-width: 200px;
}


.toggle-container input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
label {
  padding: 0;
  margin: 0;
}

.toggle-btn {
  position: relative;
  padding: 0.5rem 1rem;
  margin: 0;
  border-radius: calc(var(--border-radius) - 2px);
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition-normal);
  color: var(--text-tertiary);
  z-index: 1;
  flex: 1;
  text-align: center;
  user-select: none;
}

.toggle-btn:hover {
  background-color: #e7eefa;
}

.toggle-indicator {
  position: absolute;
  top: 0.25rem;
  left: 0.25rem;
  height: calc(100% - 0.5rem);
  background-color: var(--primary-light);
  opacity: 0.1;
  border-radius: calc(var(--border-radius) - 2px);
  transition: var(--transition-normal);
  z-index: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

input[type="radio"]:checked + .toggle-btn {
  color: var(--primary-color);
  font-weight: 600;
}

input[type="radio"]:checked:nth-of-type(1) ~ .toggle-indicator {
  transform: translateX(0);
  width: calc(50% - 0.25rem);
}

input[type="radio"]:checked:nth-of-type(2) ~ .toggle-indicator {
  transform: translateX(calc(100% + 0.25rem));
  width: calc(50% - 0.25rem);
}