/* ===== API接口与开发者文档站 - 主样式表 ===== */
:root {
  --color-primary: #6c5ce7;
  --color-primary-light: #a29bfe;
  --color-primary-dark: #4a3db5;
  --color-accent: #00cec9;
  --color-accent-light: #55efc4;
  --color-bg: #0f0f23;
  --color-bg-secondary: #1a1a3e;
  --color-bg-card: #1e1e42;
  --color-bg-code: #2d2d5e;
  --color-text: #e8e8f0;
  --color-text-secondary: #a0a0c0;
  --color-text-muted: #6c6c8a;
  --color-border: #2a2a5a;
  --color-border-light: #3a3a6a;
  --color-success: #00b894;
  --color-warning: #fdcb6e;
  --color-error: #d63031;
  --color-info: #74b9ff;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 20px rgba(108,92,231,0.3);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-code: "JetBrains Mono", "Fira Code", "Source Code Pro", monospace;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --max-width: 1200px;
}

/* ===== 基础重置 ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent);
}

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

ul, ol {
  list-style: none;
}

/* ===== 通用容器 ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
  position: relative;
  padding-left: var(--spacing-md);
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 70%;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
}

.section-desc {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  margin-bottom: var(--spacing-xl);
  max-width: 700px;
}

/* ===== 头部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 15, 35, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
}

.logo img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

.logo-badge {
  font-size: 0.65rem;
  background: var(--color-primary);
  color: #fff;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  margin-left: var(--spacing-xs);
}

.nav-main {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-main a {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  padding: var(--spacing-sm) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-main a:hover,
.nav-main a.active {
  color: var(--color-primary-light);
}

.nav-main a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-normal);
}

.nav-main a:hover::after,
.nav-main a.active::after {
  width: 100%;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--spacing-sm);
  background: none;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== 首屏英雄区 ===== */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(108,92,231,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-text), var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(108,92,231,0.5);
  color: #fff;
}

.btn-secondary {
  background: var(--color-bg-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-light);
  transform: translateY(-2px);
}

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent), #00b894);
  color: #0f0f23;
  font-weight: 700;
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0,206,201,0.4);
  color: #0f0f23;
}

/* ===== 卡片 ===== */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: 1.5rem;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.card-desc {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ===== 网格布局 ===== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

/* ===== 代码块 ===== */
.code-block {
  background: var(--color-bg-code);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  overflow-x: auto;
  font-family: var(--font-code);
  font-size: 0.9rem;
  line-height: 1.8;
  position: relative;
}

.code-block::before {
  content: attr(data-lang);
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-md);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.code-block .keyword { color: var(--color-primary-light); }
.code-block .string { color: var(--color-accent); }
.code-block .comment { color: var(--color-text-muted); }
.code-block .number { color: var(--color-warning); }
.code-block .property { color: var(--color-info); }

/* ===== 参数表格 ===== */
.param-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
  font-size: 0.95rem;
}

.param-table thead {
  background: var(--color-bg-code);
}

.param-table th,
.param-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.param-table th {
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.param-table td {
  color: var(--color-text-secondary);
}

.param-table tr:hover td {
  background: rgba(108,92,231,0.05);
}

.param-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.param-badge.required {
  background: rgba(214,48,49,0.15);
  color: var(--color-error);
}

.param-badge.optional {
  background: rgba(116,185,255,0.15);
  color: var(--color-info);
}

.param-badge.type {
  background: rgba(108,92,231,0.15);
  color: var(--color-primary-light);
}

/* ===== 接口卡片 ===== */
.endpoint-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  transition: border-color var(--transition-fast);
}

.endpoint-card:hover {
  border-color: var(--color-primary);
}

.endpoint-method {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
  font-family: var(--font-code);
  margin-right: var(--spacing-sm);
}

.method-get { background: rgba(0,184,148,0.15); color: var(--color-success); }
.method-post { background: rgba(108,92,231,0.15); color: var(--color-primary-light); }
.method-put { background: rgba(253,203,110,0.15); color: var(--color-warning); }
.method-delete { background: rgba(214,48,49,0.15); color: var(--color-error); }

.endpoint-path {
  font-family: var(--font-code);
  font-size: 0.95rem;
  color: var(--color-text);
}

.endpoint-desc {
  color: var(--color-text-secondary);
  margin-top: var(--spacing-sm);
  font-size: 0.9rem;
}

/* ===== 状态指示器 ===== */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 6px 14px;
  border-radius: var(--radius-xl);
  font-size: 0.85rem;
  font-weight: 600;
}

.status-online {
  background: rgba(0,184,148,0.1);
  color: var(--color-success);
}

.status-online::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ===== FAQ折叠 ===== */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-primary);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  cursor: pointer;
  background: var(--color-bg-card);
  font-weight: 600;
  font-size: 1rem;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: var(--color-bg-code);
}

.faq-arrow {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-normal);
  color: var(--color-text-muted);
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
  color: var(--color-primary-light);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.faq-answer p {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-text-secondary);
}

.breadcrumb a:hover {
  color: var(--color-primary-light);
}

.breadcrumb-sep {
  color: var(--color-text-muted);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand {
  max-width: 300px;
}

.footer-brand-name {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.footer-brand-desc {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.footer-links a {
  display: block;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary-light);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

/* ===== 返回顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
  border: none;
  font-size: 1.2rem;
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

/* ===== PWA安装提示 ===== */
.pwa-prompt {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  max-width: 400px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  z-index: 1001;
  display: none;
  animation: slideUp 0.4s ease;
}

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.pwa-prompt-title {
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.pwa-prompt-desc {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-md);
}

.pwa-prompt-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* ===== 搜索框 ===== */
.search-box {
  position: relative;
  max-width: 500px;
  margin: 0 auto;
}

.search-input {
  width: 100%;
  padding: 14px 20px 14px 48px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  color: var(--color-text);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(108,92,231,0.15);
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
}

.search-suggestions {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: none;
  z-index: 100;
  max-height: 300px;
  overflow-y: auto;
}

.search-suggestions.active {
  display: block;
}

.search-suggestion-item {
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}

.search-suggestion-item:last-child {
  border-bottom: none;
}

.search-suggestion-item:hover {
  background: var(--color-bg-code);
}

/* ===== 标签页切换 ===== */
.tabs {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
}

.tab-btn {
  padding: 12px 20px;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.tab-btn:hover {
  color: var(--color-text);
}

.tab-btn.active {
  color: var(--color-primary-light);
}

.tab-btn.active::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== 提示与通知 ===== */
.toast {
  position: fixed;
  top: 80px;
  right: 20px;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 500;
  z-index: 1002;
  transform: translateX(120%);
  transition: transform var(--transition-normal);
  box-shadow: var(--shadow-lg);
}

.toast.show {
  transform: translateX(0);
}

.toast-success {
  background: var(--color-success);
  color: #fff;
}

.toast-error {
  background: var(--color-error);
  color: #fff;
}

.toast-info {
  background: var(--color-primary);
  color: #fff;
}

/* ===== 表单 ===== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(108,92,231,0.15);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ===== 内容页 ===== */
.page-header {
  padding: 100px 0 40px;
  border-bottom: 1px solid var(--color-border);
}

.page-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: var(--spacing-sm);
}

.page-desc {
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  max-width: 700px;
}

.content-body {
  padding: var(--spacing-2xl) 0;
}

.content-body p {
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.content-body h2 {
  font-size: 1.5rem;
  margin: var(--spacing-xl) 0 var(--spacing-md);
  color: var(--color-text);
}

.content-body h3 {
  font-size: 1.2rem;
  margin: var(--spacing-lg) 0 var(--spacing-sm);
  color: var(--color-text);
}

/* ===== 定价卡片 ===== */
.pricing-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
}

.pricing-card.featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.pricing-card.featured::before {
  content: "推荐";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  padding: 4px 16px;
  border-radius: var(--radius-xl);
  font-size: 0.8rem;
  font-weight: 700;
}

.pricing-name {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary-light);
  margin-bottom: var(--spacing-md);
}

.pricing-price span {
  font-size: 1rem;
  color: var(--color-text-muted);
}

.pricing-features {
  text-align: left;
  margin-bottom: var(--spacing-xl);
}

.pricing-features li {
  padding: 8px 0;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.pricing-features li::before {
  content: "✓";
  color: var(--color-success);
  font-weight: 700;
}

/* ===== 移动端响应式 ===== */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .nav-main {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--spacing-xl);
    gap: var(--spacing-md);
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    z-index: 999;
  }

  .nav-main.active {
    transform: translateX(0);
  }

  .menu-toggle {
    display: flex;
  }

  .header-inner {
    height: 56px;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .page-header {
    padding: 80px 0 30px;
  }

  .page-title {
    font-size: 1.6rem;
  }

  .code-block {
    font-size: 0.8rem;
    padding: var(--spacing-md);
  }

  .param-table {
    font-size: 0.85rem;
  }

  .param-table th,
  .param-table td {
    padding: 8px 10px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .pwa-prompt {
    left: 10px;
    right: 10px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .hero-title {
    font-size: 1.6rem;
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }
}

/* ===== 工具类 ===== */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.hidden { display: none; }

/* ===== 合规提醒条 ===== */
.compliance-bar {
  background: rgba(108,92,231,0.1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  margin-top: var(--spacing-xl);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.compliance-bar a {
  color: var(--color-primary-light);
  font-weight: 600;
}