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

html, body {
  height: 100%;
  background-image: url('images/awfuopaiw.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  font-family: sans-serif;
}
.nav-left {
  width: 430px;
}
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 95px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  z-index: 9999;
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 0 30px;
  position: relative;
}

.nav-left {
  width: 430px;
}

.nav-right {
  display: flex;
}

.nav-right a {
  margin-left: 40px;
  color: #9dffff;
  font-size: 22px;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}
.nav-right button {
  margin-left: 40px;
  color: #9dffff;
  font-size: 22px;
  font-weight: bold;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  font-family: inherit;
  text-decoration: none;
  transition: color 0.3s;
  appearance: none;
}
.nav-right button:hover,
.nav-right button.active {
  color: white;
  border-bottom: 2px solid #9dffff;
}

.nav-right button:hover {
  color: white;
  border-bottom: 2px solid #9dffff;
}

.nav-right a:hover,
.nav-right a.active {
  color: white;
  border-bottom: 2px solid #9dffff;
}

.hamburger {
  display: none;
  font-size: 30px;
  background: none;
  border: none;
  color: #9dffff;
  cursor: pointer;
}

.container {
  display: flex;
  height: calc(100vh - 95px);
  padding-top: 95px;
  overflow: hidden;
}

.content {
  flex: 1;
  padding: 40px 20px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #9dffff rgba(255,255,255,0.05);
}
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: #9dffff;
  border-radius: 10px;
  border: 2px solid rgba(255, 255, 255, 0.2);
}

::-webkit-scrollbar-thumb:hover {
  background: #ffffff;
}

.about-container {
  width: 100%;
  max-width: 2000px;
  padding: 30px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  border-radius: 20px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
  color: white;
  margin-bottom: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.about-container a{
  margin-left: 40px;
  color: #9dffff;
  font-size: 40px;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}
.about-container h1 {
  border-bottom: 2px solid #9dffff;
  font-size: 40px;
  margin-bottom: 20px;
  color: #9dffff;
}

.about-container p {
  margin-bottom: 15px;
  line-height: 1.8;
  font-size: 35px;
  color: #82f3f3;
  
}
.about-container img,
.about-container picture,
.Picture-control {
  max-width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
  margin-left: 0;
}
.Picture-control{
  width: 200px;
  height: 200px;
}
.introduce{
  margin-bottom: 15px;
  line-height: 1.8;
  font-size: 35px;
  color: #82f3f3;
}
.toast {
  position: fixed;
  bottom: -100px;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(0, 0, 0, 0.8);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transition: all 0.5s ease;
  z-index: 9999;
}
.toast.show {
  bottom: 30px;
  opacity: 1;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@media (max-width: 768px) {
  .navbar {
    height: auto;
    padding: 10px;
    flex-direction: column;
  }

  .hamburger {
    display: block;
    position: absolute;
    right: 20px;
    top: 30px;
    z-index: 10001;
  }

  .nav-right {
    display: none;
    flex-direction: column;
    background-color: rgba(0, 0, 0, 0.9);
    position: absolute;
    top: 95px;
    right: 0;
    width: 100%;
    padding: 20px;
    z-index: 10000;
  }

  .nav-right.show {
    display: flex;
  }

  .nav-right a {
    font-size: 20px;
    padding: 10px 0;
    margin: 0;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-right button {
    font-size: 20px;
    padding: 10px 0;
    margin: 0;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .container {
    flex-direction: column-reverse;
    height: auto;
    overflow: hidden;
  }
  .content {
    padding: 20px;
  }
  .about-container {
    flex-direction: column;
    text-align: center;
    align-items: center;
    padding: 18px;
    gap: 12px;
  }

  .about-container a { font-size: 28px; margin-left: 0; }
  .about-container h1 { font-size: 28px; }
  .about-container p,
  .introduce { font-size: 16px; }

  .Picture-control,
  .about-container img { width: 80%; max-width: 320px; height: auto; margin: 0 auto; }
  html, body {
    background-size: auto 100%;
    background-repeat: repeat-y;
  }
}