/* 科技感全局样式 */
body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  font-family: 'Segoe UI', 'Roboto', 'Arial', sans-serif;
  background: linear-gradient(135deg, #0f2027 0%, #2c5364 100%);
  color: #fff;
  overflow-x: hidden;
}
a {
  color: #00cfff;
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: #00eaff;
}
.header {
  width: 100%;
  background: rgba(15,32,39,0.95);
  border-bottom: 1.5px solid #00cfff33;
  box-shadow: 0 2px 16px #00cfff11;
  padding: 0 0 0 32px;
  height: 60px;
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: #00cfff;
}
.navbar {
  display: flex;
  gap: 24px;
  margin-left: 40px;
}
.navbar a {
  font-size: 1rem;
  padding: 8px 18px;
  border-radius: 8px;
  background: transparent;
  transition: background 0.2s;
}
.navbar a.active, .navbar a:hover {
  background: #00cfff22;
}
.card {
  background: rgba(20, 40, 60, 0.92);
  border-radius: 18px;
  box-shadow: 0 8px 32px 0 rgba(0,207,255,0.15), 0 1.5px 8px 0 rgba(44,83,100,0.12);
  border: 1px solid rgba(0,207,255,0.18);
  padding: 32px 24px 18px 24px;
  margin: 32px auto;
  max-width: 400px;
}
input, select, textarea {
  width: 100%;
  padding: 12px 10px;
  margin: 8px 0 18px 0;
  border: none;
  border-radius: 8px;
  background: #1a2a3a;
  color: #fff;
  font-size: 1rem;
  outline: none;
  box-shadow: 0 1px 4px #00cfff22;
  transition: box-shadow 0.2s;
}
input:focus, select:focus, textarea:focus {
  box-shadow: 0 2px 12px #00cfff44;
}
button {
  background: linear-gradient(90deg,#00cfff,#2c5364);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 0;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
  width: 100%;
  box-shadow: 0 2px 8px #00cfff22;
  transition: background 0.2s, box-shadow 0.2s;
}
button:hover {
  background: linear-gradient(90deg,#00eaff,#2c5364);
  box-shadow: 0 4px 16px #00cfff44;
}
@media (max-width: 600px) {
  .card {
    margin: 16px 8px;
    padding: 18px 8px 12px 8px;
    max-width: 98vw;
  }
  .header {
    font-size: 1.1rem;
    padding-left: 12px;
    height: 48px;
  }
  .navbar {
    gap: 10px;
    margin-left: 10px;
  }
}
::-webkit-scrollbar {
  width: 8px;
  background: #1a2a3a;
}
::-webkit-scrollbar-thumb {
  background: #00cfff44;
  border-radius: 8px;
}