/* 基础样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  color: #333;
  overflow-x: hidden;
}

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

/* 导航栏样式 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
  margin: 0 auto;
  padding: 10px 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-right: auto;
  margin-left: -10px;
}

.logo-img {
  width: 80%;
  height: 80%;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-menu a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-menu a:hover {
  color: #2c5aa0;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: #2c5aa0;
  transition: width 0.3s ease;
}

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

.download-link {
  background: #2c5aa0;
  color: white !important;
  padding: 8px 16px;
  border-radius: 20px;
  transition: all 0.3s ease;
}

.download-link:hover {
  background: #1e3d72;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(44, 90, 160, 0.3);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: #333;
  margin: 3px 0;
  transition: 0.3s;
}

/* 主页横幅 */
.hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  color: white;
  min-height: auto;
  display: block;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    /* 主要光晕效果 */ radial-gradient(
      circle at 20% 80%,
      rgba(113, 220, 238, 0.4) 0%,
      transparent 60%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgba(240, 147, 251, 0.3) 0%,
      transparent 60%
    ),
    radial-gradient(
      circle at 60% 60%,
      rgba(102, 126, 234, 0.25) 0%,
      transparent 50%
    ),
    /* 几何图案 */
      linear-gradient(
        45deg,
        transparent 40%,
        rgba(255, 255, 255, 0.02) 50%,
        transparent 60%
      ),
    linear-gradient(
      -45deg,
      transparent 40%,
      rgba(255, 255, 255, 0.02) 50%,
      transparent 60%
    ),
    /* 整体渐变叠加 */
      linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.1) 0%,
        transparent 50%,
        rgba(255, 255, 255, 0.05) 100%
      );
  background-size: 100% 100%, 100% 100%, 100% 100%, 200px 200px, 200px 200px,
    100% 100%;
  z-index: 1;
}

.hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    /* 细微的网格纹理 */ repeating-linear-gradient(
      0deg,
      transparent,
      transparent 1px,
      rgba(255, 255, 255, 0.02) 1px,
      rgba(255, 255, 255, 0.02) 2px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 1px,
      rgba(255, 255, 255, 0.02) 1px,
      rgba(255, 255, 255, 0.02) 2px
    ),
    /* 对角线纹理 */
      repeating-linear-gradient(
        45deg,
        transparent,
        transparent 20px,
        rgba(255, 255, 255, 0.01) 20px,
        rgba(255, 255, 255, 0.01) 40px
      ),
    /* 点状纹理 */
      radial-gradient(
        circle at 25% 25%,
        rgba(255, 255, 255, 0.05) 1px,
        transparent 1px
      ),
    radial-gradient(
      circle at 75% 75%,
      rgba(255, 255, 255, 0.03) 1px,
      transparent 1px
    );
  background-size: 50px 50px, 50px 50px, 80px 80px, 30px 30px, 40px 40px;
  z-index: 1;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 2;
}

.hero-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
  padding-top: 40px;
}

/* 添加装饰性几何元素 */
.hero-container::before {
  content: "";
  position: absolute;
  top: -50px;
  left: -50px;
  width: 100px;
  height: 100px;
  background: linear-gradient(
    45deg,
    rgba(113, 220, 238, 0.1),
    rgba(102, 126, 234, 0.1)
  );
  border-radius: 20px;
  transform: rotate(45deg);
  z-index: -1;
}

.hero-container::after {
  content: "";
  position: absolute;
  bottom: -30px;
  right: -30px;
  width: 60px;
  height: 60px;
  background: linear-gradient(
    135deg,
    rgba(240, 147, 251, 0.15),
    rgba(118, 75, 162, 0.1)
  );
  border-radius: 50%;
  z-index: -1;
}

/* 横幅服务展示区域 */
.hero-services {
  margin-bottom: 60px;
}

.services-header {
  text-align: center;
  margin-bottom: 40px;
}

.services-header h3 {
  font-size: 2rem;
  font-weight: bold;
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  margin-bottom: 10px;
}

.services-grid-hero {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  animation: fadeInUp 0.8s ease-out;
}

.service-item-hero {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  padding: 30px 25px;
  text-align: center;
  transition: all 0.3s ease;
}

.service-item-hero:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.service-item-hero h4 {
  font-size: 1.3rem;
  font-weight: bold;
  color: #ffffff;
  margin-bottom: 20px;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

.service-item-hero ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.service-item-hero li {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 8px;
  text-align: left;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* 横幅优势展示区域 */
.hero-advantages {
  margin-bottom: 40px;
}

.advantages-header {
  text-align: center;
  margin-bottom: 40px;
}

.advantages-header h3 {
  font-size: 2rem;
  font-weight: bold;
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  margin-bottom: 10px;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  animation: fadeInUp 1s ease-out 0.3s both;
}

.advantage-item {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 25px;
  padding: 35px 30px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.advantage-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  transition: left 0.5s ease;
}

.advantage-item:hover::before {
  left: 100%;
}

.advantage-item:hover {
  transform: translateY(-8px);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.advantage-item h4 {
  font-size: 1.4rem;
  font-weight: bold;
  color: #ffffff;
  margin-bottom: 20px;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

.advantage-details p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 12px;
  text-align: left;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: bold;
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content h2 {
  font-size: 2rem;
  font-weight: 300;
  margin-bottom: 30px;
  opacity: 0.95;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 40px;
  opacity: 0.9;
  line-height: 1.8;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(1px);
}

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

.btn {
  padding: 15px 30px;
  border: none;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background: #71dcee;
  color: white;
}

.btn-primary:hover {
  background: #ff5252;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background: white;
  color: #667eea;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-download {
  background: #4CAF50;
  color: white;
}

.btn-download:hover {
  background: #45a049;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

/* 英雄区域图形 */
.hero-graphic {
  position: relative;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-graphic::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  background: conic-gradient(
    from 0deg,
    rgba(113, 220, 238, 0.1),
    rgba(102, 126, 234, 0.1),
    rgba(118, 75, 162, 0.1),
    rgba(240, 147, 251, 0.1),
    rgba(113, 220, 238, 0.1)
  );
  border-radius: 50%;
  animation: rotate 20s linear infinite;
  z-index: -1;
}

.hero-graphic::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(
      circle at 30% 70%,
      rgba(255, 255, 255, 0.1) 1px,
      transparent 1px
    ),
    radial-gradient(
      circle at 70% 30%,
      rgba(255, 255, 255, 0.08) 1px,
      transparent 1px
    ),
    radial-gradient(
      circle at 50% 20%,
      rgba(255, 255, 255, 0.06) 1px,
      transparent 1px
    );
  background-size: 50px 50px, 80px 80px, 120px 120px;
  animation: sparkle 8s ease-in-out infinite;
  z-index: -1;
}

.circle {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.2),
    rgba(255, 255, 255, 0.05)
  );
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  animation: float 6s ease-in-out infinite;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.circle-1 {
  width: 220px;
  height: 220px;
  top: 20px;
  left: 20px;
  animation-delay: 0s;
  background: linear-gradient(
    135deg,
    rgba(113, 220, 238, 0.3),
    rgba(102, 126, 234, 0.2)
  );
}

.circle-2 {
  width: 160px;
  height: 160px;
  top: 120px;
  right: 40px;
  animation-delay: 2s;
  background: linear-gradient(
    135deg,
    rgba(240, 147, 251, 0.3),
    rgba(118, 75, 162, 0.2)
  );
}

.circle-3 {
  width: 120px;
  height: 120px;
  bottom: 40px;
  left: 120px;
  animation-delay: 4s;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.25),
    rgba(113, 220, 238, 0.15)
  );
}

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

@keyframes rotate {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

@keyframes sparkle {
  0%,
  100% {
    opacity: 0.3;
  }
  50% {
    opacity: 0.8;
  }
}

@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 通用区域样式 */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.5rem;
  color: #333;
  margin-bottom: 20px;
}

.section-header p {
  font-size: 1.2rem;
  color: #666;
  max-width: 700px;
  margin: 0 auto;
}

/* 关于我们 */
.about {
  padding: 100px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.about-content {
  display: flex;
  flex-direction: column;
  gap: 60px;
}

.about-main {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 60px;
}

.about-card {
  background: white;
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease;
}

.about-card:hover {
  transform: translateY(-10px);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.about-card h3 {
  font-size: 1.8rem;
  color: #2c5aa0;
  margin-bottom: 20px;
}

.about-card p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #555;
}

.value-section {
  background: white;
  padding: 50px;
  border-radius: 25px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.value-section h3 {
  font-size: 2rem;
  color: #2c5aa0;
  text-align: center;
  margin-bottom: 40px;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
}

.value-item {
  text-align: center;
  padding: 30px 20px;
  border-radius: 15px;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  transition: transform 0.3s ease;
}

.value-item:hover {
  transform: translateY(-5px);
}

.value-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.value-item h4 {
  font-size: 1.3rem;
  color: #2c5aa0;
  margin-bottom: 10px;
}

.value-item p {
  color: #666;
  font-size: 1rem;
  line-height: 1.6;
}

/* 核心业务 */
.services {
  padding: 100px 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
}

.service-card {
  background: #f8f9fa;
  padding: 40px 30px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  text-align: center;
  border: 1px solid #eee;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
  background: white;
}

.service-icon {
  font-size: 4rem;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.8rem;
  color: #333;
  margin-bottom: 20px;
}

.service-card p {
  color: #666;
  line-height: 1.8;
  margin-bottom: 25px;
}

.service-card ul {
  list-style: none;
  text-align: left;
}

.service-card li {
  padding: 8px 0;
  color: #555;
  position: relative;
  padding-left: 20px;
}

.service-card li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #2c5aa0;
  font-weight: bold;
}

/* 产品介绍 */
.app-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

/* 下载APP */
.download-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #2c5aa0 0%, #3a7bd5 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.download-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.download-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.download-info h3 {
  font-size: 2rem;
  font-weight: 300;
  margin-bottom: 30px;
  opacity: 0.9;
}

.download-info p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 40px;
  opacity: 0.8;
}

.app-preview {
  display: flex;
  justify-content: center;
}

.app-modules {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 25px;
}

.module-item {
  text-align: center;
  padding: 25px 15px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.module-item:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.module-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.module-item h4 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.module-item p {
  font-size: 0.95rem;
  opacity: 0.8;
}

/* 手机模型 */
.phone-frame {
  width: 280px;
  height: auto;
  background: #333;
  border-radius: 25px;
  padding: 8px;
  margin: 0 auto;
  position: relative;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  display: flex;
  justify-content: center;
  align-items: center;
}

.app-screenshot {
  width: 100%;
  height: auto;
  border-radius: 20px;
  display: block;
}

/* APP下载区域 */
.app-download-section {
  text-align: center;
  margin-top: 50px;
  padding: 30px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  backdrop-filter: blur(10px);
}

.app-download-section h3 {
  font-size: 1.8rem;
  margin-bottom: 15px;
  color: white;
}

.app-download-section p {
  font-size: 1.1rem;
  margin-bottom: 30px;
  opacity: 0.9;
}

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

.download-btn {
  min-width: 180px;
  padding: 15px 25px;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.3s ease;
  display: inline-block;
}

.download-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-icon {
  font-size: 1.5rem;
}

.btn-text {
  font-size: 1rem;
  font-weight: 600;
}

/* 联系我们 */
.contact {
  padding: 100px 0;
  background: #f8f9fa;
}

.contact-content {
  display: flex;
  justify-content: center;
}

.contact-info-center {
  text-align: center;
  max-width: 800px;
}

.company-logo {
  margin-bottom: 30px;
}

.contact-logo {
  width: 280px;
  height: 280px;
}

.contact-info-center h3 {
  font-size: 2rem;
  color: #2c5aa0;
  margin-bottom: 40px;
}

.contact-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 40px;
}

.contact-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 15px;
  background: white;
  padding: 25px;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  text-align: left;
  transition: all 0.3s ease;
}

.contact-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.contact-icon {
  font-size: 2rem;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-details strong {
  display: block;
  color: #333;
  font-size: 1.1rem;
  margin-bottom: 5px;
}

.contact-details span {
  color: #666;
  font-size: 1rem;
  line-height: 1.4;
}

.company-mission {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 30px;
  border-radius: 20px;
  margin-top: 20px;
}

.company-mission p {
  font-size: 1.2rem;
  margin-bottom: 10px;
  opacity: 0.9;
}

.company-mission p:last-child {
  margin-bottom: 0;
  font-weight: 600;
}

/* 页脚 */
.footer {
  background: #333;
  color: white;
  padding: 0px 10px 20px 20px;
}

.footer-content {
  display: flex;
  justify-content: center;
  margin-bottom: 40px;
}

.footer-center {
  text-align: center;
}

.footer-center h3 {
  margin-bottom: 20px;
  color: #2c5aa0;
  font-size: 1.8rem;
}

.footer-center p {
  color: #ccc;
  font-size: 1.1rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #555;
  color: #ccc;
}

/* 响应式设计 */
@media (max-width: 1024px) and (min-width: 769px) {
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    display: none;
  }
  
  .hero-main,
  .app-content,
  .download-content {
    grid-template-columns: 1fr;
    gap: 50px;
    text-align: center;
  }
  
  .hero-buttons,
  .download-buttons {
    justify-content: center;
  }

  .hero-main {
    margin-bottom: 50px;
  }

  .services-grid-hero {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .advantages-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .service-item-hero {
    padding: 25px 20px;
  }

  .advantage-item {
    padding: 25px 20px;
  }

  .services-header h3,
  .advantages-header h3 {
    font-size: 1.6rem;
  }

  .service-item-hero h4 {
    font-size: 1.1rem;
  }

  .advantage-item h4 {
    font-size: 1.2rem;
  }

  .service-item-hero li {
    font-size: 0.9rem;
  }

  .advantage-details p {
    font-size: 0.9rem;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

  .hero-content h2 {
    font-size: 1.5rem;
  }

  .hero-content p {
    font-size: 1rem;
  }

  /* 移动端背景优化 */
  .hero::before {
    background-size: 100% 100%, 100% 100%, 100% 100%, 150px 150px, 150px 150px,
      100% 100%;
  }

  .hero::after {
    background-size: 30px 30px, 30px 30px, 60px 60px, 20px 20px, 25px 25px;
  }

  .hero-graphic {
    height: 300px;
  }

  .circle-1 {
    width: 150px;
    height: 150px;
  }

  .circle-2 {
    width: 100px;
    height: 100px;
  }

  .circle-3 {
    width: 80px;
    height: 80px;
  }

  .hero-graphic::before {
    width: 200px;
    height: 200px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .app-modules {
    grid-template-columns: 1fr;
  }

  .contact-row {
    grid-template-columns: 1fr;
  }

  .about-main {
    grid-template-columns: 1fr;
  }

  .value-grid {
    grid-template-columns: 1fr;
  }

  .phone-frame {
    width: 220px;
  }

  .floating-customer-service {
    right: 20px;
    bottom: 20px;
  }

  .customer-service-icon {
    width: 50px;
    height: 50px;
  }

  .headset-icon {
    font-size: 20px;
  }

  .modal-content {
    margin: 20% auto;
    padding: 20px;
    width: 95%;
  }

  .qr-code {
    width: 100%;
    height: 100%;
  }
}

/* 悬浮客服样式 */
.floating-customer-service {
  position: fixed;
  right: 30px;
  bottom: 30px;
  z-index: 1000;
  cursor: pointer;
}

.customer-service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #2c5aa0;
  color: white;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  box-shadow: 0 4px 20px rgba(44, 90, 160, 0.3);
  transition: all 0.3s ease;
  animation: pulse 2s infinite;
}

.customer-service-icon:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(44, 90, 160, 0.4);
  background: #1e3d72;
}

.headset-icon {
  font-size: 24px;
}

.service-text {
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
}

@keyframes pulse {
  0% {
    box-shadow: 0 4px 20px rgba(44, 90, 160, 0.3);
  }
  50% {
    box-shadow: 0 4px 20px rgba(44, 90, 160, 0.6);
  }
  100% {
    box-shadow: 0 4px 20px rgba(44, 90, 160, 0.3);
  }
}

/* 客服弹窗样式 */
.customer-service-modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
}

.modal-content {
  background-color: white;
  margin: 10% auto;
  padding: 30px;
  border-radius: 15px;
  width: 90%;
  max-width: 400px;
  text-align: center;
  position: relative;
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.close-modal {
  position: absolute;
  right: 15px;
  top: 15px;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  color: #999;
  transition: color 0.3s ease;
}

.close-modal:hover {
  color: #333;
}

.modal-content h3 {
  margin-bottom: 20px;
  color: #333;
  font-size: 20px;
}

.qr-code {
  width: 200px;
  height: 200px;
  border-radius: 10px;
  margin: 20px 0;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.modal-content p {
  color: #666;
  font-size: 14px;
  margin-top: 15px;
}