/* 全局样式 */
:root {
  --primary-color: #4361ee;
  --primary-dark: #3f37c9;
  --primary-light: #a4b5f8;
  --secondary-color: #f8f9fa;
  --accent-color: #ff6b6b;
  --success-color: #06ffa5;
  --warning-color: #ffbe0b;
  --info-color: #4cc9f0;
  --text-dark: #2b2d42;
  --text-light: #6c757d;
  --white: #ffffff;
  --border-radius: 12px;
  --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  --gradient-accent: linear-gradient(135deg, var(--accent-color), #ee5a6f);
  --gradient-success: linear-gradient(135deg, var(--success-color), #00d084);
  --gradient-warning: linear-gradient(135deg, var(--warning-color), #fb8500);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--white);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 通用按钮样式 */
.btn {
  display: inline-block;
  padding: 12px 24px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(67, 97, 238, 0.4);
}

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

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

.btn-lg {
  padding: 16px 32px;
  font-size: 1.1rem;
}

/* 导航栏样式 */
header {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  transition: var(--transition);
  border-bottom: 1px solid rgba(67, 97, 238, 0.1);
}

/* 导航栏滚动时样式 */
header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 5px 25px rgba(0, 0, 0, 0.08);
  border-bottom: 1px solid rgba(67, 97, 238, 0.2);
}

/* 导航栏品牌样式 */
.navbar-brand {
  display: flex;
  align-items: center;
  font-weight: 700;
  color: var(--primary-color);
  font-size: 1.4rem;
  text-decoration: none;
  transition: var(--transition);
}

.navbar-brand:hover {
  color: var(--primary-dark);
}

.logo {
  height: 40px;
  margin-right: 12px;
  transition: var(--transition);
  object-fit: contain;
}

.navbar-brand:hover .logo {
  transform: scale(1.05);
}

/* 顶部横幅样式 */
.top-banner {
  background: var(--gradient-primary);
  color: white;
  padding: 8px 0;
  font-size: 0.9rem;
  position: relative;
  z-index: 1001;
  transition: var(--transition);
}

.top-banner.hidden {
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
}

.banner-content {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.banner-content i {
  margin-right: 10px;
  font-size: 1rem;
}

.banner-close {
  position: absolute;
  right: -30px;
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  font-size: 1rem;
  padding: 0;
  transition: var(--transition);
  opacity: 0.8;
}

.banner-close:hover {
  opacity: 1;
  transform: scale(1.2);
}

/* 顶部横幅存在时调整导航栏位置 */
body:has(.top-banner:not(.hidden)) header {
  top: 41px;
}

/* 加载动画 */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--white);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.fade-out {
  opacity: 0;
  visibility: hidden;
}

.preloader-content {
  text-align: center;
}

.logo-loader {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--gradient-primary);
  position: relative;
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(67, 97, 238, 0.7);
  }
  
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(67, 97, 238, 0);
  }
  
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(67, 97, 238, 0);
  }
}

.loader-text {
  margin-top: 20px;
  color: var(--primary-color);
  font-weight: 600;
  font-size: 1.2rem;
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.2rem;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  cursor: pointer;
  box-shadow: var(--box-shadow);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(67, 97, 238, 0.4);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
  position: relative;
}

/* 导航栏菜单项样式 */
.navbar-nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-item {
  margin-left: 28px;
  position: relative;
}

.nav-link {
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  padding: 8px 0;
  font-size: 1rem;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--gradient-primary);
  transition: width 0.3s ease;
  border-radius: 2px;
}

.nav-link:hover::after {
  width: 100%;
}

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

/* 活跃导航链接 */
.nav-link.active {
  color: var(--primary-color);
  font-weight: 600;
}

.nav-link.active::after {
  width: 100%;
}

/* 导航栏按钮样式 */
.btn-header {
  margin-left: 15px;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 8px 20px;
  border-radius: 50px;
}

.btn-outline-primary.btn-header {
  border-width: 2px;
}

.ms-2 {
  margin-left: 10px !important;
}

/* 移动端菜单切换按钮 */
.navbar-toggler {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--primary-color);
  transition: var(--transition);
  padding: 5px;
  z-index: 1001;
}

.navbar-toggler:hover {
  color: var(--primary-dark);
  transform: scale(1.1);
}

.navbar-toggler-icon {
  display: block;
  width: 25px;
  height: 3px;
  background-color: currentColor;
  margin: 5px 0;
  transition: var(--transition);
  position: relative;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
  content: '';
  position: absolute;
  width: 25px;
  height: 3px;
  background-color: currentColor;
  transition: var(--transition);
}

.navbar-toggler-icon::before {
  top: -8px;
}

.navbar-toggler-icon::after {
  top: 8px;
}

/* 汉堡菜单动画 */
.navbar-toggler-icon.open {
  background-color: transparent;
}

.navbar-toggler-icon.open::before {
  transform: translateY(8px) rotate(45deg);
}

.navbar-toggler-icon.open::after {
  transform: translateY(-8px) rotate(-45deg);
}

/* 导航栏品牌样式 */
.navbar-brand {
  display: flex;
  align-items: center;
  font-weight: 700;
  color: var(--primary-color);
  font-size: 1.4rem;
  text-decoration: none;
  transition: var(--transition);
}

.navbar-brand:hover {
  color: var(--primary-dark);
}

.logo {
  height: 40px;
  margin-right: 12px;
  transition: var(--transition);
  object-fit: contain;
}

.navbar-brand:hover .logo {
  transform: scale(1.05);
}

.navbar-nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin-left: 25px;
}

.nav-link {
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 3px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

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

.btn-header {
  margin-left: 25px;
}

.navbar-toggler {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero 区域样式 */
.hero {
  padding: 120px 0 60px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

/* 增强浮动元素效果 */
.floating-element {
  filter: blur(1px);
  opacity: 0.15;
}

.floating-element-1 {
  width: 350px;
  height: 350px;
  animation: float-1 12s infinite ease-in-out;
}

.floating-element-2 {
  width: 250px;
  height: 250px;
  animation: float-2 15s infinite ease-in-out;
}

.floating-element-3 {
  width: 200px;
  height: 200px;
  animation: float-3 10s infinite ease-in-out;
}

.floating-element-4 {
  width: 220px;
  height: 220px;
  animation: float-4 18s infinite ease-in-out;
}

.floating-element-5 {
  width: 160px;
  height: 160px;
  animation: float-5 14s infinite ease-in-out;
}

@keyframes float-1 {
  0%, 100% { transform: translateY(0) translateX(0) rotate(0deg); }
  25% { transform: translateY(-30px) translateX(20px) rotate(5deg); }
  50% { transform: translateY(20px) translateX(-10px) rotate(-5deg); }
  75% { transform: translateY(-20px) translateX(-20px) rotate(3deg); }
}

@keyframes float-2 {
  0%, 100% { transform: translateY(0) translateX(0) rotate(0deg); }
  25% { transform: translateY(20px) translateX(-30px) rotate(-8deg); }
  50% { transform: translateY(-40px) translateX(15px) rotate(8deg); }
  75% { transform: translateY(10px) translateX(25px) rotate(-5deg); }
}

@keyframes float-3 {
  0%, 100% { transform: translateY(0) translateX(0) rotate(0deg); }
  25% { transform: translateY(-25px) translateX(15px) rotate(6deg); }
  50% { transform: translateY(15px) translateX(-25px) rotate(-6deg); }
  75% { transform: translateY(-35px) translateX(10px) rotate(4deg); }
}

@keyframes float-4 {
  0%, 100% { transform: translateY(0) translateX(0) rotate(0deg); }
  25% { transform: translateY(30px) translateX(-20px) rotate(-7deg); }
  50% { transform: translateY(-20px) translateX(30px) rotate(7deg); }
  75% { transform: translateY(25px) translateX(-15px) rotate(-4deg); }
}

@keyframes float-5 {
  0%, 100% { transform: translateY(0) translateX(0) rotate(0deg); }
  25% { transform: translateY(-20px) translateX(25px) rotate(5deg); }
  50% { transform: translateY(30px) translateX(-20px) rotate(-5deg); }
  75% { transform: translateY(-15px) translateX(15px) rotate(3deg); }
}

/* Hero区域粒子背景效果 */
.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
}

.particle {
  position: absolute;
  background-color: rgba(67, 97, 238, 0.3);
  border-radius: 50%;
  pointer-events: none;
}

@keyframes particle-float {
  0% { transform: translateY(0) translateX(0); opacity: 0; }
  10% { opacity: 0.4; }
  90% { opacity: 0.4; }
  100% { transform: translateY(-100vh) translateX(50px); opacity: 0; }
}

.hero-bg-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

.floating-element {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
  animation: float 8s infinite ease-in-out;
}

.floating-element-1 {
  width: 300px;
  height: 300px;
  background: linear-gradient(45deg, #4361ee, #3f37c9);
  top: 10%;
  left: -150px;
  animation-delay: 0s;
}

.floating-element-2 {
  width: 200px;
  height: 200px;
  background: linear-gradient(45deg, #06ffa5, #00d084);
  top: 50%;
  right: -100px;
  animation-delay: 1s;
}

.floating-element-3 {
  width: 150px;
  height: 150px;
  background: linear-gradient(45deg, #ff6b6b, #ee5a6f);
  bottom: 10%;
  left: 10%;
  animation-delay: 2s;
}

.floating-element-4 {
  width: 180px;
  height: 180px;
  background: linear-gradient(45deg, #ffbe0b, #fb8500);
  top: 20%;
  right: 10%;
  animation-delay: 3s;
}

.floating-element-5 {
  width: 120px;
  height: 120px;
  background: linear-gradient(45deg, #8338ec, #3a86ff);
  bottom: 30%;
  right: 20%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(10deg);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.hero-badge {
  display: inline-block;
  background-color: rgba(6, 255, 165, 0.15);
  color: var(--success-color);
  font-weight: 600;
  padding: 8px 20px;
  border-radius: 50px;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--text-dark);
  line-height: 1.2;
}

.hero p {
  font-size: 1.3rem;
  color: var(--text-light);
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin: 50px 0;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 5px;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-light);
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.wave-decoration {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100px;
  overflow: hidden;
}

/* 价值主张区域样式 */
.value-props {
  padding: 80px 0;
  background-color: var(--white);
  position: relative;
}

.value-props::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="none"/><path d="M0,0 L100,100 M100,0 L0,100" stroke="rgba(67,97,238,0.03)" stroke-width="0.5"/></svg>');
  background-size: 100px 100px;
  z-index: -1;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.section-title::before {
  content: '';
  position: absolute;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--text-dark);
  position: relative;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: 1.5px;
}

.section-title p {
  font-size: 1.2rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 25px auto 0;
}

.value-props-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
}

.value-prop {
  text-align: center;
  padding: 30px;
  border-radius: var(--border-radius);
  transition: var(--transition);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.value-prop::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0;
  background: var(--gradient-primary);
  opacity: 0.1;
  transition: height 0.5s ease;
  z-index: -1;
}

.value-prop:hover::before {
  height: 100%;
}

.value-prop:hover {
  transform: translateY(-10px);
  box-shadow: var(--box-shadow);
  border-color: rgba(67, 97, 238, 0.2);
}

.value-prop-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  margin: 0 auto 25px;
  background: var(--gradient-primary);
  border-radius: 50%;
  color: var(--white);
  font-size: 2rem;
  position: relative;
  box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
  transition: var(--transition);
}

.value-prop:hover .value-prop-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 8px 25px rgba(67, 97, 238, 0.4);
}

.value-prop:nth-child(2) .value-prop-icon {
  background: var(--gradient-success);
  box-shadow: 0 5px 15px rgba(6, 255, 165, 0.3);
}

.value-prop:nth-child(2):hover .value-prop-icon {
  box-shadow: 0 8px 25px rgba(6, 255, 165, 0.4);
}

.value-prop:nth-child(3) .value-prop-icon {
  background: var(--gradient-warning);
  box-shadow: 0 5px 15px rgba(255, 190, 11, 0.3);
}

.value-prop:nth-child(3):hover .value-prop-icon {
  box-shadow: 0 8px 25px rgba(255, 190, 11, 0.4);
}

.value-prop h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: var(--text-dark);
}

.value-prop p {
  color: var(--text-light);
  font-size: 1.05rem;
}

/* 功能区域样式 */
.features {
  padding: 80px 0;
  background-color: var(--secondary-color);
  position: relative;
}

.features::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="60" height="60" viewBox="0 0 60 60"><circle cx="30" cy="30" r="2" fill="rgba(67,97,238,0.05)"/></svg>');
  background-size: 60px 60px;
  z-index: 0;
  pointer-events: none;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  position: relative;
  z-index: 1;
}

.feature-card {
  background-color: var(--white);
  padding: 30px;
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

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

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--box-shadow);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  color: var(--white);
  font-size: 1.8rem;
  position: relative;
  overflow: hidden;
}

.feature-icon::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  transform: scale(0);
  border-radius: 50%;
  transition: transform 0.5s ease;
}

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

/* 为不同的功能卡片设置不同的渐变色 */
.feature-card:nth-child(2) .feature-icon {
  background: var(--gradient-success);
}

.feature-card:nth-child(3) .feature-icon {
  background: var(--gradient-warning);
}

.feature-card:nth-child(4) .feature-icon {
  background: var(--gradient-accent);
}

.feature-card:nth-child(5) .feature-icon {
  background: linear-gradient(135deg, #8338ec, #3a86ff);
}

.feature-card:nth-child(6) .feature-icon {
  background: linear-gradient(135deg, var(--info-color), #4361ee);
}

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 15px;
  color: var(--text-dark);
}

.feature-card p {
  color: var(--text-light);
  font-size: 1rem;
}

/* 用户评价区域样式 */
.testimonials {
  padding: 80px 0;
  background-color: var(--white);
  position: relative;
  overflow: hidden;
}

.testimonials::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: var(--gradient-success);
  opacity: 0.05;
  z-index: 0;
}

.testimonials::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: var(--gradient-primary);
  opacity: 0.03;
  z-index: 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  position: relative;
  z-index: 1;
}

.testimonial-card {
  background-color: var(--white);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
  position: relative;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  left: 20px;
  font-size: 4rem;
  color: rgba(67, 97, 238, 0.1);
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--box-shadow);
}

.testimonial-rating {
  color: var(--warning-color);
  margin-bottom: 20px;
  font-size: 1.2rem;
}

.testimonial-content {
  margin-bottom: 25px;
  font-style: italic;
  color: var(--text-light);
  line-height: 1.6;
}

.testimonial-author {
  display: flex;
  align-items: center;
}

.author-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  overflow: hidden;
  margin-right: 15px;
  border: 2px solid var(--primary-color);
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-info h4 {
  margin: 0 0 5px;
  color: var(--text-dark);
  font-size: 1.1rem;
}

.author-info p {
  margin: 0;
  color: var(--text-light);
  font-size: 0.9rem;
}

/* 价格区域样式 */
.pricing {
  padding: 80px 0;
  background-color: var(--white);
  position: relative;
  overflow: hidden;
}

.pricing::before {
  content: '';
  position: absolute;
  top: -50px;
  left: -50px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--gradient-success);
  opacity: 0.1;
  z-index: 0;
}

.pricing::after {
  content: '';
  position: absolute;
  bottom: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: var(--gradient-primary);
  opacity: 0.05;
  z-index: 0;
}

.pricing-cards {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.pricing-card {
  flex: 1;
  min-width: 300px;
  background-color: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  position: relative;
  border: 2px solid transparent;
}

.pricing-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.pricing-card.featured {
  transform: scale(1.05);
  box-shadow: 0 20px 40px rgba(67, 97, 238, 0.2);
  border-color: var(--primary-color);
}

.pricing-card.featured::before {
  content: "推荐";
  position: absolute;
  top: 20px;
  right: -30px;
  background-color: var(--accent-color);
  color: var(--white);
  padding: 5px 40px;
  font-size: 0.8rem;
  font-weight: 600;
  transform: rotate(45deg);
  z-index: 1;
  box-shadow: 0 3px 10px rgba(255, 107, 107, 0.3);
}

.pricing-card.featured::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20"><circle cx="2" cy="2" r="1" fill="rgba(67,97,238,0.1)"/></svg>');
  background-size: 20px 20px;
  pointer-events: none;
  z-index: 0;
}

.pricing-header {
  padding: 30px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: var(--white);
  text-align: center;
}

.pricing-title {
  font-size: 1.3rem;
  margin-bottom: 15px;
  font-weight: 600;
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 700;
}

.pricing-body {
  padding: 30px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 30px;
}

.pricing-features li {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
}

.pricing-features i {
  margin-right: 10px;
  color: var(--primary-color);
}

.pricing-features li.negative i {
  color: var(--accent-color);
}

.btn-pricing {
  width: 100%;
  text-align: center;
  padding: 15px;
}

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

.btn-outline-success:hover {
  background-color: var(--success-color);
  color: var(--text-dark);
}

/* 行业区域样式 */
.industries {
  padding: 80px 0;
  background-color: var(--secondary-color);
  position: relative;
}

/* 常见问题区域样式 */
.faq {
  padding: 80px 0;
  background-color: var(--white);
  position: relative;
  overflow: hidden;
}

.faq::before {
  content: '';
  position: absolute;
  top: -50px;
  left: -50px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--gradient-primary);
  opacity: 0.03;
  z-index: 0;
}

.faq::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: var(--gradient-warning);
  opacity: 0.03;
  z-index: 0;
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.faq-item {
  margin-bottom: 20px;
  border-radius: var(--border-radius);
  overflow: hidden;
  background-color: var(--white);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.faq-item:hover {
  box-shadow: var(--box-shadow);
}

.faq-question {
  padding: 20px 25px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
  position: relative;
}

.faq-question::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: rgba(0, 0, 0, 0.05);
  transition: height 0.3s ease;
}

.faq-item.active .faq-question::after {
  height: 0;
}

.faq-question h4 {
  margin: 0;
  font-size: 1.2rem;
  color: var(--text-dark);
  transition: var(--transition);
}

.faq-item.active .faq-question h4 {
  color: var(--primary-color);
}

.faq-question i {
  color: var(--primary-color);
  transition: var(--transition);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 25px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 25px 20px;
}

.faq-answer p {
  margin: 0;
  color: var(--text-light);
  line-height: 1.6;
}

.industries::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, rgba(67, 97, 238, 0.02) 25%, transparent 25%, transparent 50%, rgba(67, 97, 238, 0.02) 50%, rgba(67, 97, 238, 0.02) 75%, transparent 75%, transparent);
  background-size: 20px 20px;
  z-index: 0;
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  position: relative;
  z-index: 1;
}

.industry {
  background-color: var(--white);
  padding: 30px;
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
}

.industry::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.industry:hover {
  transform: translateY(-10px);
  box-shadow: var(--box-shadow);
}

.industry:hover::before {
  transform: scaleX(1);
}

.industry-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  color: var(--white);
  font-size: 1.8rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.industry-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.5s ease, height 0.5s ease;
}

.industry:hover .industry-icon::after {
  width: 100%;
  height: 100%;
}

.industry:hover .industry-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 8px 25px rgba(67, 97, 238, 0.3);
}

/* 为不同的行业卡片设置不同的渐变色 */
.industry:nth-child(2) .industry-icon {
  background: var(--gradient-success);
}
.industry:nth-child(3) .industry-icon {
  background: var(--gradient-warning);
}
.industry:nth-child(4) .industry-icon {
  background: var(--gradient-accent);
}
.industry:nth-child(5) .industry-icon {
  background: linear-gradient(135deg, #8338ec, #3a86ff);
}
.industry:nth-child(6) .industry-icon {
  background: linear-gradient(135deg, var(--info-color), #4361ee);
}
.industry:nth-child(7) .industry-icon {
  background: linear-gradient(135deg, #577590, #43aa8b);
}
.industry:nth-child(8) .industry-icon {
  background: linear-gradient(135deg, #f94144, #f3722c);
}

.industry h4 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--text-dark);
}

.industry p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* 页脚样式 */
footer {
  background: linear-gradient(135deg, #2b2d42 0%, #212529 100%);
  color: var(--white);
  padding: 60px 0 20px;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--gradient-primary);
}

footer::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" stroke="rgba(255,255,255,0.03)" stroke-width="0.5" fill="none"/></svg>');
  background-size: 100px 100px;
  opacity: 0.3;
  z-index: 0;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
  position: relative;
  z-index: 1;
}

.footer-links h5 {
  font-size: 1.3rem;
  margin-bottom: 20px;
  color: var(--white);
  position: relative;
  display: inline-block;
}

.footer-links h5::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--gradient-primary);
}

.footer-links p {
  color: #adb5bd;
  margin-bottom: 20px;
  line-height: 1.6;
}

.footer-links ul {
  list-style: none;
}

.footer-links ul li {
  margin-bottom: 10px;
  position: relative;
  padding-left: 15px;
  transition: var(--transition);
}

.footer-links ul li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-size: 0.7rem;
  opacity: 0;
  transition: var(--transition);
}

.footer-links ul li:hover {
  padding-left: 20px;
}

.footer-links ul li:hover::before {
  opacity: 1;
}

.footer-links ul li a {
  color: #adb5bd;
  text-decoration: none;
  transition: var(--transition);
}

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

.contact-info {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
  transition: var(--transition);
}

.contact-info:hover {
  transform: translateX(5px);
}

.contact-info i {
  margin-right: 15px;
  color: var(--primary-color);
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid #495057;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.footer-bottom p {
  color: #adb5bd;
  margin: 0;
  font-size: 0.9rem;
}

.footer-bottom a {
  color: #adb5bd;
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}

.footer-bottom a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

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

.footer-bottom a:hover::after {
  width: 100%;
}

/* 响应式样式 */
@media (max-width: 992px) {
  .hero h1 {
    font-size: 2.8rem;
  }
  
  .hero p {
    font-size: 1.1rem;
  }
  
  .hero-stats {
    gap: 20px;
  }
  
  .stat-number {
    font-size: 1.8rem;
  }
  
  .pricing-cards {
    flex-direction: column;
    align-items: center;
  }
  
  .pricing-card.featured {
    transform: scale(1);
  }
  
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
  }
}

@media (max-width: 992px) {
  .navbar-nav {
    padding: 20px 0;
  }
  
  .btn-header {
    margin-top: 15px;
    width: 100%;
    text-align: center;
  }
  
  .ms-2 {
    margin-left: 0 !important;
    margin-top: 10px !important;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 10px 0;
  }
  
  .navbar-nav {
    display: none;
    align-items: flex-start;
  }
  
  .nav-item {
    margin: 10px 0;
    width: 100%;
    padding: 0 20px;
  }
  
  .nav-link {
    padding: 10px 0;
    font-size: 1.1rem;
  }
  
  .navbar-toggler {
    display: block;
  }
  
  .d-flex {
    display: none;
  }
  
  .hero {
    padding: 120px 0 40px;
  }
  
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-buttons .btn {
    width: 100%;
    max-width: 300px;
  }
  
  .hero-stats {
    flex-wrap: wrap;
  }
  
  .value-props-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .industries-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 10px;
  }
  
  .floating-element {
    opacity: 0.05;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 15px;
  }
  
  .hero h1 {
    font-size: 1.9rem;
  }
  
  .section-title h2 {
    font-size: 2rem;
  }
  
  .section-title p {
    font-size: 1rem;
  }
  
  .industries-grid {
    grid-template-columns: 1fr;
  }
  
  .value-prop, .feature-card, .industry {
    padding: 25px 20px;
  }
  
  .hero-stats {
    gap: 15px;
  }
  
  .stat-item {
    flex: 1;
  }
  
  .back-to-top {
    bottom: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
  :root {
    --text-dark: #f8f9fa;
    --text-light: #adb5bd;
    --secondary-color: #212529;
    --white: #2b2d42;
  }
  
  .hero {
    background: linear-gradient(135deg, #212529 0%, #343a40 100%);
  }
  
  .value-props, .industries {
    background-color: #343a40;
  }
  
  .value-prop, .feature-card, .industry, .pricing-card {
    background-color: rgba(43, 45, 66, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .navbar {
    background-color: rgba(43, 45, 66, 0.95);
  }
}