* {
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: white;
  overflow-x: hidden;
}

/* 动画类定义 */
.fade-in-up {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.animate {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-left.animate {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-right.animate {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.animate {
  opacity: 1;
  transform: scale(1);
}

/* Logo动画 */
.logo-container {
  position: relative;
}

.logo-float {
  animation: float 6s ease-in-out infinite;
}

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

/* 文字打字效果 */
.typewriter {
  overflow: hidden;
  border-right: 2px solid transparent;
  white-space: nowrap;
  animation: typewriter 2s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typewriter {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink-caret {
  from, to { border-color: transparent; }
  50% { border-color: #333; }
}

.container-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 115%;
  background: url(./images/bg0.png);
  background-size: 100% 100%;
}

.container {
  max-width: 1400px;
  text-align: center;
  position: relative;
  margin-top: 20px;
}

.container .logo1 {
  position: absolute;
  left: 42px;
  height: 36px;
  border-radius: 5px;
}

.container .logo2 {
  position: absolute;
  left: 97px;
  top: 5px;
  height: 32px;
}

.content {
  display: flex;
  height: 880px;
}

.content img {
  max-width: 100%;
  height: auto;
}

.description {
  padding: 30px 40px;
  color: #333;
  width: 570px;
  padding-top: 23%;
  display: flex;
  flex-direction: column;
}

.description .logo-text1 {
  width: 152px;
}

.description .logo-text3 {
  width: 294px;
  margin-left: -5px;
}

.description p {
  color: #000000;
  font-size: 18px;
  font-style: normal;
  font-weight: 400;
  line-height: 200%; /* 36px */
  text-align: left;
}

.content-img {
  width: 580px;
  height: 66%;
  background: url(./images/bg1.png);
  background-size: cover;
  margin-top: 11%;
}

.section-title {
  margin-top: 40px;
  margin-bottom: 5px;
  font-size: 34px;
  font-weight: 600;
}

.feature-section-content {
  color: #7d7e80;
  font-size: 18px;
  font-style: normal;
  font-weight: 400;
  line-height: 200%; /* 36px */
  text-align: center;
  margin-bottom: 45px;
}

.features {
  display: flex;
  justify-content: space-around;
  padding: 20px 0;
  background: url('./images/bg2.png');
  background-repeat: round;
}

.feature {
  text-align: center;
  flex: 1;
  padding: 20px 10px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
  border-radius: 25px;
  position: relative;
  overflow: hidden;
}

.feature:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(255, 68, 61, 0.25);
}

.feature img {
  max-width: 60px;
  height: auto;
  transition: transform 0.3s ease, filter 0.3s ease;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.feature:hover img {
  transform: scale(1.1) rotate(5deg);
  filter: drop-shadow(0 8px 16px rgba(102, 126, 234, 0.3));
}

.feature h3 {
  color: #000;
  text-align: center;
  font-size: 24px;
  font-style: normal;
  font-weight: 600;
  line-height: normal;
  margin: 10px 0;
}

.feature p {
  color: #888;
  text-align: center;
  font-size: 12px;
  font-style: normal;
  font-weight: 400;
  line-height: 14px;
  margin: 6px 0;
}

.footer {
  width: 100%;
  margin-top: 133px;
  font-size: 14px;
  background-color: #f7f7f7;
  color: #000;
  text-align: center;
  font-size: 13px;
  font-style: normal;
  font-weight: 400;
  line-height: 26px; /* 200% */
  opacity: 0.6;
}

.footer a {
  line-height: 26px;
  font-family: 'PingFang SC';
  text-align: center;
  display: inline-block;
  color: #2e74fd;
}

/* 平板和小屏幕PC适配 (768px - 1024px) */
@media (max-width: 1024px) and (min-width: 769px) {
  .container {
    max-width: 95%;
    margin-top: 15px;
  }
  
  .content {
    height: auto;
    min-height: 600px;
  }
  
  .description {
    width: 50%;
    padding: 20px 30px;
    padding-top: 15%;
  }
  
  .content-img {
    width: 50%;
    height: 500px;
    margin-top: 8%;
  }
  
  .description p {
    font-size: 16px;
  }
  
  .section-title {
    font-size: 30px;
  }
  
  .feature h3 {
    font-size: 20px;
  }
}

/* 手机端适配 (最大768px) */
@media (max-width: 768px) {
  .container {
    max-width: 95%;
    margin-top: 10px;
    padding: 0 10px;
  }
  
  .container .logo1 {
    position: relative;
    left: 0;
    height: 28px;
    margin-bottom: 10px;
  }
  
  .container .logo2 {
    position: relative;
    left: 0;
    top: 0;
    height: 25px;
    margin-bottom: 20px;
  }
  
  .content {
    flex-direction: column;
    height: auto;
  }
  
  .description {
    width: 100%;
    padding: 20px 15px;
    padding-top: 20px;
    order: 1;
  }
  
  .description .logo-text1 {
    width: 120px;
  }
  
  .description .logo-text3 {
    width: 220px;
    margin-left: 0;
  }
  
  .description p {
    font-size: 15px;
    line-height: 180%;
    margin: 15px 0;
  }
  
  .content-img {
    width: 100%;
    height: 300px;
    margin-top: 20px;
    order: 2;
  }
  
  .section-title {
    font-size: 26px;
    margin-top: 30px;
  }
  
  .feature-section-content {
    font-size: 16px;
    line-height: 180%;
    padding: 0 10px;
    margin-bottom: 30px;
  }
  
  .features {
    flex-direction: column;
    padding: 15px 10px;
  }
  
  .feature {
    padding: 20px 15px;
    margin-bottom: 10px;
  }
  
  .feature img {
    max-width: 50px;
  }
  
  .feature h3 {
    font-size: 20px;
    margin: 15px 0 10px 0;
  }
  
  .feature p {
    font-size: 13px;
    line-height: 16px;
    margin: 5px 0;
  }
  
  .footer {
    margin-top: 50px;
    padding: 20px 10px;
    font-size: 12px;
    line-height: 22px;
  }
  
  .footer p {
    margin: 10px 0;
  }
}
/* 备案号链接样式 */
.beian-link {
  color: #2e74fd;
  text-decoration: none;
  transition: all 0.3s ease;
  padding: 2px 4px;
  border-radius: 3px;
  position: relative;
}

.beian-link:hover {
  /* color: #1a5bb8; */
  /* background-color: rgba(46, 116, 253, 0.1); */
  text-decoration: underline;
  transform: translateY(-1px);
  /* box-shadow: 0 2px 4px rgba(46, 116, 253, 0.2); */
}

.beian-link:active {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(46, 116, 253, 0.3);
}