:root {
  --bg: #ffffff;
  --bg-alt: #fff8f5;
  --card: #ffffff;
  --text: #333333;
  --muted: #666666;
  --accent: #FF6B35;
  --accent-hover: #E55A2B;
  --border: #ffe5dc;
  --radius: 4px;
  --radius-sm: 4px;
  --radius-lg: 8px;
  --transition: all 0.2s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (max-width: 768px) {
  body {
    font-size: 14px;
  }
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1280px, 94vw);
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 32px);
}

@media (max-width: 768px) {
  .container {
    width: 100%;
    padding: 0 20px;
  }
}

/* 顶部导航栏 - 扁平化设计 */
.top-navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--card);
  border-bottom: 2px solid var(--border);
  padding: 16px 0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* 主横幅区域 - 扁平化垂直布局 */
.main-banner {
  position: relative;
  padding: 100px 0 80px;
  background-image: linear-gradient(rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.9)), var(--hero-image);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
}

.banner-content {
  position: relative;
  z-index: 2;
  text-align: left;
  max-width: 800px;
  margin: 0;
  background: rgba(255, 255, 255, 0.98);
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.banner-badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: var(--radius);
  background: var(--accent);
  color: #ffffff;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.banner-title {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 42px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  color: var(--text);
}

.banner-title span {
  color: var(--accent);
}

.banner-description {
  font-size: 18px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 30px;
  max-width: 800px;
}

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

/* 页面hero区域 - 扁平化设计 */
.page-hero {
  position: relative;
  padding: 60px 0 40px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}

.navbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  color: var(--accent);
}

.logo:hover {
  color: var(--accent-hover);
}

.logo span {
  color: var(--accent);
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: clamp(16px, 3vw, 28px);
  align-items: center;
  flex-wrap: wrap;
}

.nav-links a {
  font-size: 16px;
  font-weight: 500;
  color: var(--muted);
  transition: var(--transition);
  display: block;
  padding: 8px 16px;
  border-radius: var(--radius);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  background: rgba(255, 107, 53, 0.1);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 10px 12px;
  border-radius: var(--radius);
  font-size: 14px;
}

/* 页面内导航菜单 */
.page-nav {
  position: sticky;
  top: 80px;
  z-index: 99;
  background: var(--card);
  border-bottom: 2px solid var(--border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  padding: 16px 0;
  margin-bottom: 0;
}

.page-nav-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.page-nav-link {
  padding: 10px 20px;
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  display: inline-block;
}

.page-nav-link:hover {
  color: var(--accent);
  background: rgba(255, 107, 53, 0.1);
  transform: translateY(-2px);
}

.page-nav-link:active {
  transform: translateY(0);
}

/* 锚点跳转时的平滑滚动偏移 */
section[id] {
  scroll-margin-top: 120px;
}

@media (max-width: 768px) {
  .page-nav {
    top: 70px;
    padding: 12px 0;
  }

  .page-nav-links {
    gap: 6px;
    padding: 0 10px;
  }

  .page-nav-link {
    padding: 8px 14px;
    font-size: 13px;
  }

  section[id] {
    scroll-margin-top: 100px;
  }
}

/* 页面标题横幅 - 扁平化设计 */
.page-header-banner {
  position: relative;
  padding: 60px 0 40px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
}

.page-header-content {
  position: relative;
  z-index: 2;
  text-align: left;
  max-width: 100%;
  margin: 0;
}

.page-header-title {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 36px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.3px;
  margin-bottom: 16px;
  color: var(--text);
}

.page-header-title span {
  color: var(--accent);
}

.page-header-subtitle {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 800px;
}

.hero-content {
  position: relative;
  z-index: 2;
  margin-top: clamp(40px, 8vw, 100px);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: clamp(24px, 5vw, 48px);
  align-items: center;
}

@media (max-width: 900px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.hero-title {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(32px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--text) 0%, var(--muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  margin-top: clamp(16px, 3vw, 24px);
  color: var(--muted);
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.7;
  max-width: 90%;
}

@media (max-width: 768px) {
  .hero-subtitle {
    max-width: 100%;
  }
}

.hero-actions {
  margin-top: clamp(24px, 4vw, 36px);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  padding: 14px 32px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.3px;
  transition: var(--transition);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  border: none;
}

.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 16px rgba(255, 107, 53, 0.3);
  transform: translateY(-2px);
}

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

.btn-secondary:hover {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(255, 107, 53, 0.3);
  transform: translateY(-2px);
}

.hero-card {
  background: rgba(21, 27, 46, 0.8);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  transition: var(--transition);
}

.hero-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(0, 217, 255, 0.25);
}

.hero-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.hero-card ul {
  list-style: none;
  display: grid;
  gap: 10px;
}

.hero-card li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
}

.hero-card li::before {
  content: "•";
  color: var(--accent);
}

/* 主内容区域 - 垂直流式布局 */
.main-section {
  padding: 60px 0;
  border-bottom: 1px solid var(--border);
}

.main-section:last-of-type {
  border-bottom: none;
}

.section {
  padding: clamp(60px, 10vw, 100px) 0;
}

.section-header {
  text-align: left;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--accent);
  position: relative;
}

.section-header::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 60px;
  height: 2px;
  background: var(--accent);
}

.section-title {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.3px;
  color: var(--text);
  position: relative;
  display: inline-block;
}

.section-subtitle {
  color: var(--muted);
  margin-bottom: 0;
  font-size: 16px;
  line-height: 1.6;
  max-width: 800px;
}

.feature-grid {
  display: grid;
  gap: clamp(20px, 3vw, 28px);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
}

@media (max-width: 640px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

/* 两栏网格布局 */
.two-column-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: clamp(24px, 4vw, 32px);
  max-width: 800px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .two-column-grid {
    grid-template-columns: 1fr;
  }
}

/* 四列网格布局 */
.four-column-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: clamp(20px, 3vw, 28px);
}

@media (max-width: 1200px) {
  .four-column-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .four-column-grid {
    grid-template-columns: 1fr;
  }
}

/* 展示区域 - 垂直流式布局 */
.feature-showcase {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.showcase-item {
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--card);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  position: relative;
}

.showcase-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent);
  opacity: 0;
  transition: var(--transition);
}

.showcase-item:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.15);
  transform: translateY(-4px);
}

.showcase-item:hover::before {
  opacity: 1;
}

.showcase-image {
  overflow: hidden;
  width: 100%;
  height: 250px;
}

.showcase-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.showcase-content {
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
}

.showcase-content h3 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-top: 8px;
}

.showcase-content p {
  color: var(--muted);
  line-height: 1.7;
  font-size: clamp(15px, 2vw, 16px);
}

@media (max-width: 768px) {
  .banner-content {
    padding: 24px;
    margin: 0 16px;
  }
  
  .banner-title {
    font-size: 28px;
  }
  
  .banner-description {
    font-size: 16px;
  }
  
  .main-banner {
    padding: 60px 0 40px;
    background-attachment: scroll;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .section-header {
    margin-bottom: 30px;
    padding-bottom: 16px;
  }
  
  .showcase-image {
    height: 200px;
  }
  
  .showcase-content {
    padding: 24px;
  }
  
  .feature-card {
    padding: 24px;
  }
  
  .advantages-box {
    padding: 28px 20px;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 14px;
  }
}

/* 优势卡片 */
.advantages-box {
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.03), rgba(255, 107, 53, 0.08));
  border-radius: 12px;
  padding: 40px;
  border: 2px solid var(--accent);
  max-width: 100%;
  margin: 0;
  box-shadow: 0 4px 20px rgba(255, 107, 53, 0.1);
  position: relative;
  overflow: hidden;
}

.advantages-box::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.advantages-box h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 28px;
  text-align: left;
  color: var(--text);
  position: relative;
  z-index: 1;
}

.advantages-box ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.advantages-box li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  padding: 12px 0 12px 32px;
  position: relative;
  transition: var(--transition);
  z-index: 1;
}

.advantages-box li:hover {
  color: var(--accent);
  padding-left: 36px;
}

.advantages-box li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
  font-size: 20px;
  background: rgba(255, 107, 53, 0.1);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.advantages-box li:hover::before {
  background: var(--accent);
  color: #ffffff;
  transform: scale(1.1);
}

.feature-card {
  background: var(--card);
  padding: 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.12);
  transform: translateY(-4px);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card h4 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
  position: relative;
  padding-left: 24px;
}

.feature-card h4::before {
  content: "▶";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 14px;
}

.feature-card h4 {
  font-size: 18px;
  margin-bottom: 10px;
}

.badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: var(--radius);
  background: var(--accent);
  color: #ffffff;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
}

@media (max-width: 640px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--card);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 100%;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.15);
  transform: translateY(-4px);
}

.card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

.card img {
  height: clamp(180px, 25vw, 220px);
  width: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.card:hover img {
  opacity: 0.9;
}

.card-body {
  padding: clamp(18px, 3vw, 24px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
}

.card h3 {
  font-size: 18px;
  line-height: 1.3;
}

.card p {
  color: var(--muted);
  font-size: 14px;
}

.tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 107, 53, 0.15));
  border: 1px solid rgba(255, 107, 53, 0.3);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 4px rgba(255, 107, 53, 0.1);
}

.listing-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: clamp(24px, 4vw, 32px);
}

.filter-btn {
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.filter-btn.active {
  border-color: var(--accent);
  background: rgba(33, 150, 243, 0.1);
  color: var(--accent);
}

.pagination {
  margin-top: clamp(28px, 4vw, 36px);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.pagination button {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 10px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
  min-width: 44px;
}

.pagination button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.pagination button.active {
  color: #ffffff;
  background: var(--accent);
  border-color: var(--accent);
}

.highlight-section {
  background: var(--bg-alt);
}

.pricing-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
}

@media (max-width: 640px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}

.price-card {
  background: var(--card);
  border-radius: 12px;
  border: 2px solid var(--border);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.price-card:hover {
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(255, 107, 53, 0.15);
  transform: translateY(-6px);
}

.price-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.price {
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 16px;
}

.form-grid {
  display: grid;
  gap: 20px;
}

.form-grid input,
.form-grid textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size: 16px;
  transition: var(--transition);
  font-family: inherit;
}

.form-grid input:focus,
.form-grid textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-grid textarea {
  min-height: clamp(140px, 20vw, 160px);
  resize: vertical;
  line-height: 1.6;
}

.post-body {
  display: grid;
  gap: 18px;
  color: var(--muted);
}

.post-body h2 {
  color: var(--text);
  font-size: 22px;
}

.post-nav {
  margin-top: 32px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.post-nav a {
  border: 1px solid var(--line);
  padding: 10px 14px;
  border-radius: 12px;
  color: var(--muted);
}

.footer {
  padding: 60px 0 0;
  border-top: 2px solid var(--border);
  background: var(--bg-alt);
  margin-top: 0;
}

.footer-grid {
  display: grid;
  gap: clamp(32px, 4vw, 48px);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  margin-bottom: 40px;
}

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

.footer-brand .logo {
  margin-bottom: 12px;
}

.footer-slogan {
  margin-top: 12px;
  font-size: 14px;
  color: var(--muted);
  font-style: italic;
}

.footer-social {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-social span {
  color: var(--muted);
  font-size: 14px;
}

.footer-social a {
  color: var(--accent);
  font-size: 14px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.footer-links h4,
.footer-legal h4,
.footer-contact h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}

.footer p,
.footer a {
  color: var(--muted);
  font-size: clamp(13px, 1.8vw, 15px);
  transition: var(--transition);
  margin-bottom: 8px;
}

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

.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.02);
  text-align: center;
}

.footer-bottom p {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-social {
    margin-top: 16px;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: inline-flex;
    z-index: 100;
  }

  .nav-links {
    position: fixed;
    top: 80px;
    right: clamp(16px, 4vw, 24px);
    background: var(--card);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
    border-radius: var(--radius);
    border: 2px solid var(--border);
    min-width: 200px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px) scale(0.95);
    transition: var(--transition);
    z-index: 100;
  }

  body.nav-open .nav-links {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
  }

  .hero-content {
    margin-top: 40px;
  }
  
  .page-hero {
    padding: 24px 0 80px;
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  animation: fadeUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* 平滑滚动 */
html {
  scroll-behavior: smooth;
}

/* 内容容器 - 响应式最大宽度 */
.content-wrapper {
  max-width: min(800px, 90vw);
  margin: 0 auto;
}

@media (max-width: 768px) {
  .content-wrapper {
    max-width: 100%;
  }
}

/* 表单容器 - 响应式 */
.form-container {
  max-width: min(600px, 90vw);
  margin: 0 auto;
}

/* 价格列表样式 */
.price-card ul {
  list-style: none;
  margin-top: clamp(20px, 3vw, 24px);
  padding: 0;
}

.price-card ul li {
  margin-bottom: clamp(10px, 2vw, 12px);
  color: var(--muted);
  font-size: clamp(14px, 1.8vw, 15px);
  line-height: 1.6;
  padding-left: 0;
}

.price-card ul li::before {
  content: "•";
  color: var(--accent);
  font-weight: bold;
  margin-right: 8px;
}

/* 章节间距 */
.section-title + .section-title {
  margin-top: clamp(48px, 8vw, 64px);
}

/* 全宽按钮 */
.btn-full-width {
  width: 100%;
}

/* 数据统计区域 */
.stats-section {
  padding: 60px 0;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.05), rgba(255, 107, 53, 0.1));
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  text-align: center;
}

.stat-item {
  padding: 24px;
  background: var(--card);
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.15);
  border-color: var(--accent);
}

.stat-number {
  font-size: 42px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
  line-height: 1;
}

.stat-label {
  font-size: 16px;
  color: var(--muted);
  font-weight: 500;
}

/* 产品网格布局 */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.product-card {
  background: var(--card);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.15);
  transform: translateY(-4px);
}

.product-card.clickable-card {
  cursor: pointer;
}

.product-image {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--accent);
  color: #ffffff;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.product-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.product-tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 107, 53, 0.15));
  border: 1px solid rgba(255, 107, 53, 0.3);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  width: fit-content;
}

.product-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 8px 0;
  color: var(--text);
}

.product-content p {
  color: var(--muted);
  line-height: 1.6;
  flex: 1;
}

.product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.product-features span {
  font-size: 13px;
  color: var(--accent);
  background: rgba(255, 107, 53, 0.08);
  padding: 4px 10px;
  border-radius: 12px;
}

/* 特性网格布局 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 16px;
  text-align: center;
}

.feature-card {
  text-align: center;
  padding: 32px 24px;
}

.feature-card h4 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--text);
}

/* 服务网格布局 */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.service-card {
  background: var(--card);
  padding: 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  text-align: center;
}

.service-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.12);
  transform: translateY(-4px);
}

.service-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.service-card h4 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

.service-card p {
  color: var(--muted);
  line-height: 1.6;
}

/* 客户评价区域 */
.testimonials-section {
  padding: 60px 0;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.testimonial-card {
  background: var(--card);
  padding: 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.testimonial-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.12);
  transform: translateY(-4px);
}

.testimonial-rating {
  font-size: 18px;
  color: #FFD700;
}

.testimonial-text {
  color: var(--text);
  line-height: 1.7;
  font-style: italic;
  flex: 1;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.testimonial-author strong {
  color: var(--text);
  font-size: 16px;
}

.testimonial-author span {
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .stat-number {
    font-size: 32px;
  }
  
  .products-grid,
  .features-grid,
  .services-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .product-image {
    height: 180px;
  }
}

/* 可点击卡片样式 */
.clickable-card {
  cursor: pointer;
  position: relative;
}

.clickable-card:hover {
  transform: translateY(-4px);
}

/* 模态框样式 */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  animation: fadeIn 0.3s ease;
}

.modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-content {
  background-color: var(--card);
  margin: auto;
  border-radius: 12px;
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  position: relative;
  animation: slideUp 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 20px;
  color: var(--muted);
  font-size: 32px;
  font-weight: bold;
  cursor: pointer;
  z-index: 10;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  transition: var(--transition);
}

.modal-close:hover,
.modal-close:focus {
  color: var(--accent);
  background: rgba(255, 107, 53, 0.1);
  transform: rotate(90deg);
}

.modal-image-container {
  width: 100%;
  height: 300px;
  overflow: hidden;
  border-radius: 12px 12px 0 0;
}

.modal-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-body {
  padding: 32px;
}

.modal-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 14px;
}

.modal-body h2 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
  color: var(--text);
}

.modal-text {
  color: var(--muted);
  line-height: 1.8;
  font-size: 16px;
  white-space: pre-line;
}

@media (max-width: 768px) {
  .modal-content {
    max-width: 95%;
    max-height: 95vh;
  }

  .modal-body {
    padding: 24px;
  }

  .modal-body h2 {
    font-size: 22px;
  }

  .modal-image-container {
    height: 200px;
  }

  .modal-text {
    font-size: 14px;
  }
}

/* 改进的可访问性 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
  
  .modal {
    animation: none;
  }
  
  .modal-content {
    animation: none;
  }
}