/* 
  龙猫云 (Totoro Cloud) 官网全局样式表
  设计风格: 温和、高级的淡米黄色 (Light Beige) + 莫兰迪自然色彩
*/

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  /* 颜色变量 */
  --bg-base: #FAF8F5;          /* 柔软暖白背景 */
  --bg-surface: #F3EFE9;       /* 浅米黄沙滩色 */
  --bg-card: #FFFFFF;          /* 纯白卡片背景 */
  --text-primary: #3C362F;     /* 温暖炭灰（高可读性） */
  --text-secondary: #7A7267;   /* 柔和泥土灰（次要文本） */
  --text-muted: #9F978C;       /* 灰泥色 */
  
  --primary: #C58F59;          /* 龙猫暖琥珀/焦糖色 */
  --primary-hover: #A97441;    /* 悬停深焦糖色 */
  --primary-light: #F8F1E7;    /* 浅琥珀背景色 */
  --accent: #E5BA73;           /* 砂金色 */
  
  --success: #6C7A65;          /* 龙猫森林绿（成功/健康状态） */
  --success-light: #F1F4F0;    /* 浅绿色背景 */
  --error: #C96F53;            /* 赤陶红（错误/高警示状态） */
  --error-light: #FBF2EF;      /* 浅红色背景 */
  
  --border: #E8E2D8;           /* 软米色分割线 */
  --border-focus: #C58F59;     /* 聚焦边框色 */
  
  /* 阴影与圆角 */
  --shadow-sm: 0 2px 4px rgba(60, 54, 47, 0.04);
  --shadow-md: 0 8px 16px rgba(60, 54, 47, 0.06);
  --shadow-lg: 0 16px 32px rgba(60, 54, 47, 0.08);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  /* 字体与排版 */
  --font-sans: 'Outfit', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--text-primary);
  background-color: var(--bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  line-height: 1.625;
  overflow-x: hidden;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

h1 { font-size: 2.5rem; margin-bottom: 1.5rem; }
h2 { font-size: 2rem; margin-bottom: 1.25rem; position: relative; }
h3 { font-size: 1.5rem; margin-bottom: 1rem; }

/* 实用工具类 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-center { text-align: center; }
.py-5 { padding-top: 5rem; padding-bottom: 5rem; }
.py-4 { padding-top: 3.5rem; padding-bottom: 3.5rem; }
.my-4 { margin-top: 2rem; margin-bottom: 2rem; }

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
  gap: 0.5rem;
}

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

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(197, 143, 89, 0.25);
}

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

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

.btn-outline {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

/* 顶部导航栏 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(250, 248, 245, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: 70px;
  display: flex;
  align-items: center;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--text-primary);
}

.logo svg {
  fill: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
}

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

.nav-cta {
  display: flex;
  align-items: center;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  cursor: pointer;
}

/* 首屏 Hero Section */
.hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 80% 20%, rgba(229, 186, 115, 0.15) 0%, rgba(250, 248, 245, 0) 60%),
              radial-gradient(circle at 10% 80%, rgba(108, 122, 101, 0.08) 0%, rgba(250, 248, 245, 0) 50%);
  padding: 6.5rem 0 5rem 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  background-color: var(--primary-light);
  color: var(--primary);
  padding: 0.35rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(197, 143, 89, 0.15);
}

.hero h1 {
  font-size: 3.25rem;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -0.5px;
}

.hero h1 span {
  color: var(--primary);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 580px;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
}

.stat-item h4 {
  font-size: 1.85rem;
  color: var(--primary);
  font-weight: 700;
}

.stat-item p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.hero-illustration {
  position: relative;
  display: flex;
  justify-content: center;
}

/* 龙猫云卡片式立体图 */
.card-stack {
  position: relative;
  width: 100%;
  max-width: 420px;
  height: 340px;
}

.card-layer {
  position: absolute;
  width: 100%;
  height: 240px;
  border-radius: var(--radius-lg);
  padding: 2rem;
  background: var(--bg-card);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.card-layer-1 {
  top: 0;
  left: 0;
  z-index: 3;
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--primary-light) 100%);
}

.card-layer-2 {
  top: 30px;
  left: 30px;
  z-index: 2;
  opacity: 0.8;
  transform: scale(0.95);
  background-color: var(--bg-surface);
}

.card-layer-3 {
  top: 60px;
  left: 60px;
  z-index: 1;
  opacity: 0.5;
  transform: scale(0.9);
}

.card-stack:hover .card-layer-1 {
  transform: translate(-10px, -10px);
}

.card-stack:hover .card-layer-2 {
  transform: scale(0.97) translate(10px, 10px);
}

.card-stack:hover .card-layer-3 {
  transform: scale(0.92) translate(30px, 30px);
}

/* 核心优势 */
.section-header {
  max-width: 700px;
  margin: 0 auto 4rem auto;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.feature-icon {
  width: 54px;
  height: 54px;
  background-color: var(--primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* 适合人群 */
.audience-section {
  background-color: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 4rem 3rem;
  margin-bottom: 5rem;
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.audience-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 2rem;
  border-left: 4px solid var(--primary);
  box-shadow: var(--shadow-sm);
}

.audience-card h4 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.audience-card p {
  font-size: 0.925rem;
  color: var(--text-secondary);
}

/* 套餐价格列表 */
.pricing-tabs-container {
  display: flex;
  justify-content: center;
  margin-bottom: 3rem;
}

.pricing-table-wrapper {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-bottom: 2rem;
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.pricing-table th, .pricing-table td {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.pricing-table th {
  background-color: var(--bg-surface);
  font-weight: 700;
  color: var(--text-primary);
}

.pricing-table tbody tr:last-child td {
  border-bottom: none;
}

.pricing-table tbody tr:hover {
  background-color: var(--primary-light);
}

.pricing-table td strong {
  color: var(--primary);
  font-size: 1.25rem;
}

.price-period {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: normal;
}

.pricing-notes {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.pricing-notes li {
  list-style-type: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

/* Clash / Clash Party 教程 */
.tutorial-section {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 4rem 3rem;
  margin-bottom: 5rem;
  box-shadow: var(--shadow-sm);
}

.tutorial-tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 2.5rem;
  border-bottom: 2px solid var(--border);
  padding-bottom: 0.75rem;
}

.tab-btn {
  background: none;
  border: none;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  cursor: pointer;
  position: relative;
  transition: var(--transition);
}

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

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

.tab-btn.active::after {
  content: "";
  position: absolute;
  bottom: -0.85rem;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--primary);
  border-radius: 50px;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.step-item {
  display: flex;
  gap: 1.5rem;
}

.step-num {
  width: 36px;
  height: 36px;
  background-color: var(--primary);
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.step-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.step-content code {
  background-color: var(--bg-surface);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 0.9rem;
  color: var(--primary-hover);
}

/* 用户评价 */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.review-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.review-stars {
  color: var(--accent);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.review-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-avatar {
  width: 40px;
  height: 40px;
  background-color: var(--bg-surface);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary);
}

.user-info h5 {
  font-size: 0.95rem;
}

.user-info span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* FAQ 常见问题折叠面板 */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 1.5rem;
  text-align: left;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-icon {
  font-size: 1.25rem;
  transition: var(--transition);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  background-color: var(--bg-base);
}

.faq-answer-content {
  padding: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.975rem;
  border-top: 1px solid var(--border);
}

.faq-item.active .faq-answer {
  max-height: 500px; /* 足够容纳内容的高度 */
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* 文章目录 */
.article-section {
  background-color: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 5rem 3rem;
  margin-top: 5rem;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.article-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.article-img {
  width: 100%;
  height: 180px;
  background-color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: var(--primary);
  font-size: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.article-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  display: flex;
  gap: 1rem;
}

.article-body h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.article-body p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.article-link {
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.article-link::after {
  content: "→";
  transition: var(--transition);
}

.article-card:hover .article-link::after {
  transform: translateX(4px);
}

/* 详情阅读页面模板样式 */
.article-page {
  padding: 4rem 0 6rem 0;
}

.article-layout {
  display: grid;
  grid-template-columns: 8fr 4fr;
  gap: 3rem;
}

.article-main {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-sm);
}

.article-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 2rem;
  margin-bottom: 2rem;
}

.article-header h1 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.breadcrumb {
  display: flex;
  gap: 0.5rem;
  list-style: none;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.breadcrumb li::after {
  content: "/";
  margin-left: 0.5rem;
}

.breadcrumb li:last-child::after {
  content: "";
}

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

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

/* 文章正文排版 */
.article-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-primary);
}

.article-content p {
  margin-bottom: 1.5rem;
}

.article-content h2 {
  font-size: 1.6rem;
  margin-top: 2.5rem;
  margin-bottom: 1.25rem;
  border-bottom: 2px solid var(--border);
  padding-bottom: 0.5rem;
}

.article-content h3 {
  font-size: 1.3rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--primary-hover);
}

.article-content ul, .article-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content blockquote {
  background-color: var(--primary-light);
  border-left: 4px solid var(--primary);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 2rem 0;
  font-style: italic;
  color: var(--text-secondary);
}

.article-content code {
  background-color: var(--bg-surface);
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 0.925em;
  color: var(--primary-hover);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.article-content th, .article-content td {
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
}

.article-content th {
  background-color: var(--bg-surface);
  font-weight: 700;
}

.article-content tr:nth-child(even) {
  background-color: var(--bg-base);
}

/* 侧边栏 */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-widget {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.sidebar-widget h4 {
  font-size: 1.2rem;
  margin-bottom: 1.25rem;
  border-left: 3px solid var(--primary);
  padding-left: 0.75rem;
}

.widget-cta {
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--primary-light) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.widget-cta h4 {
  font-size: 1.35rem;
  color: var(--text-primary);
}

.widget-cta p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.related-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.related-list li a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  display: block;
  line-height: 1.4;
}

.related-list li a:hover {
  color: var(--primary);
}

/* 政策/法务条款页面 */
.legal-main {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 4rem 3rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 4rem;
}

.legal-main h1 {
  font-size: 2.25rem;
  margin-bottom: 2rem;
  text-align: center;
}

.legal-main h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.legal-main p {
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
}

.legal-main ul {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.legal-main li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

/* 页脚 */
.footer {
  background-color: #2F2A24; /* 深咖啡色/灰褐色，提供视觉对比与沉稳结尾 */
  color: #DDD4C8;
  padding: 4rem 0 2rem 0;
  border-top: 1px solid #3E3830;
}

.footer a {
  color: #B5AB9E;
}

.footer a:hover {
  color: #FFFFFF;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand h3 {
  color: #FFFFFF;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-brand h3 svg {
  fill: #FFFFFF;
}

.footer-brand p {
  font-size: 0.9rem;
  color: #B5AB9E;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1rem;
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-col ul a {
  font-size: 0.9rem;
}

.footer-bottom {
  border-top: 1px solid #3E3830;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #9F9588;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

/* 响应式调整 */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 4rem;
  }
  .hero h1 {
    font-size: 2.75rem;
  }
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-btns {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .hero-illustration {
    order: -1;
  }
  .card-stack {
    margin: 0 auto;
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    margin-top: 2rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--bg-card);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-cta {
    display: none;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .pricing-table-wrapper {
    overflow-x: auto;
  }
  
  .audience-section, .tutorial-section, .article-section {
    padding: 3rem 1.5rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .legal-main {
    padding: 2.5rem 1.5rem;
  }
  
  .article-main {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.25rem;
  }
  .hero-btns {
    flex-direction: column;
  }
  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }
  .pricing-table th, .pricing-table td {
    padding: 0.75rem 0.5rem;
    font-size: 0.875rem;
  }
  .pricing-table td strong {
    font-size: 1rem;
  }
}