/* ==================== 登录页样式 ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #f1f5f9;
}

.login-container {
  width: 100%;
  max-width: 400px;
  padding: 20px;
}

.login-box {
  background: #1e293b;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  border: 1px solid #334155;
}

h1 {
  text-align: center;
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.subtitle {
  text-align: center;
  color: #94a3b8;
  margin-bottom: 30px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

input[type="password"] {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #475569;
  border-radius: 8px;
  background: #0f172a;
  color: #f1f5f9;
  font-size: 1rem;
  transition: all 0.2s;
}

input[type="password"]:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

button[type="submit"] {
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: 8px;
  background: #3b82f6;
  color: white;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

button[type="submit"]:hover {
  background: #2563eb;
  transform: translateY(-1px);
}

button[type="submit"]:active {
  transform: translateY(0);
}

.hint {
  text-align: center;
  color: #64748b;
  font-size: 0.85rem;
  margin-top: 20px;
}

/* 响应式 */
@media (max-width: 480px) {
  .login-box {
    padding: 30px 20px;
  }
  
  h1 {
    font-size: 1.5rem;
  }
}